2022年人教版初二下学期数学期中复习串讲及练习题

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1、actions using rules, and in the process of the concentration of disci plinary ruling, not convergence, not pull back as heavy or heavier punishment. Discipline focused di sci pline process at least 18 since the five-year, five years is to pay close attention to the Central implementation eight provi

2、sions and anti-four winds. Fourth chapter to suspected illegal party discipli nary actions and distinguish between five different circumstances, provides for specific provisions respectively, effective cohesion to achieve party discipli ne and State Law 9. One is the 27th article of the Ordinance pr

3、ovides that party members found in the disciplinary review of corruption bribery, dereliction of duty and other alleged offences under criminal law, should be given to withdraw party posts, expelled from or pla ced on probation within the party disciplinary action. Second, article 28th of the regula

4、tions i n the discipline of the party organization . Disci plinary punishment against life , Chapter 6. 3, annex Annex part of supplementary provisi on s, such as the permission, interpretation of the regulations, as well as the timing and retroactive, and so on. 11 (three) learningunderstanding Ord

5、inance need grasp of several focus problem first a problem-on violation politi cal disci pline behavior new Ordinance sixth chapter put political discipline as six big disci pline of first, is main on opposition of led and opposition of basic theory, a nd line, and basic programme of, and basic expe

6、rience, and basic requirements of disciplinary behavior made disposition provides, especially will 18 big yilai Central proposed strict political disci pline and political rules of requirements and practice results into for discipline pr ovisions, Adde d jump on t he ce ntral policy, clique, fight r

7、eviews, without principles and disregard the disciplinary provisions. These are the partys 18 since the comprehe nsive practi ce of strictly administering the party in the process of combining the rich content. (1) jump on the central policy violate the partys centrali zed a nd unified this issue is

8、 made under provisi ons of the party Constitution. Party Constitution stipulated in master uphold democratic centralism is the party building must adhere t o one of the four basic requirements. This items principles is party of fundamental Organization princi ples, is mass line in party of life in t

9、he of using, it requirements must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play levels party and members of enthusiasm and creative, while, also must implemented right of concentrated, guarantee party of solidarity unified and act

10、ion consistent, guarantee party of decided get quickly and effective of implementation. Central in devel ope d major approach poli cy Shi, through different of channel and way, full heard a bout party and members of views recommends, but 12 is some people face to face not said, and behind blather wi

11、ll Shang not sai d, a nd w ill Hou blather stage not said, a nd aiwan Xia blather, actually not only disrupt has people thought, some caused serious consequences, damage has party of concentrated unified, hamper has central approach poli cy of implement implementation, also serious violation has dem

12、ocratic centralism of princi ples. No doubt, shall, in accordance with he regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the criticism should be given education or the appr opriate organization. (2) violate the partys solidarity and unity to the new sectio

13、n 48tto 52nd of the Ordinance, to violate the partys soli darity and unity, such as punishment of violations of political discipline as spe cified. The 52nd new missions Gang gang, clique , cli ques within the party, cultivating private power i nterests or by Exchange, creating a momentum for their

14、activities, such as fishing for political capital, punishment imposed serious warnings or withdrawal of party posts in serious cases, punishme nt imposed or placed on probati on within the expelled. (3) on the rival groups review provisi ons of the party Constitution, must comply with the obligation

15、s of the party faithful are party members. Party members must obey decided shall not contravene the Organization decided to have problems to find organizations, relying on the Organization, a dece ption organization, against the organization. For example . Female country (territory) outside, such as

16、 employment, income, property and investment matters, for failing to report, not truthfully report, undeclared, and so on, depending on the seri ousness, give criticism and education, within a time limit, shall be ordered to make checks and commands his conversation, criticized oradjustment of statu

17、s, removal and so on, constitutes a disciplinary offence, disci plinary action in accorda nce with the relevant provisions. But since the origina l was not appropriate in the specific provisions of the regulations, for violations of the provisi ons do not report, report the matters related to the pe

18、rsonal behavior does not correspond to the discipline of sanction, n practice it i s difficult to operate. On this, for sol ution not re port, and not truthfully report personal about matters 15 asked blamed of problem, new Ordinance i ncrea sed has 67th article, on vi olation personal about matters

19、 report provides, not report, and not truthfully report of behavior proposed has clear of disposition according to, makes this class disci plinary behavior no longer has empty can drill, for carried out personal about matters checks verified, and cadres supervisi on, and discipline review , w ork pr

20、ovides has powerful of discipline guarantees. (2) with regard to illegal organizations, will participate in the fellow and alumni, to comrades 68th of the regulations provi des that the party cadres violating relevant regulations, participation in spontaneous fellow, alumni, friends, etc, to be puni

21、shed according to the seriousness of it. Of particular note here is three things: first, this article is merely cadres, reflects the high re quirements for leading party cadres; the ot her is in violation of the 2002 Central Commission for disci pline inspection, the Central Organization Department

22、and the general politi cal Department jointly issued the circular on leading cadres should not participate in the voluntary establishment of villagers and alumni and ally organization notice of the relevant provisi ons. That is organized, villagers participating in the established clubs, alumni, com

23、rades will constitute a disci plinary offence is contrary to the premise of this rule. Specified in the notice, leading cadres should not participate i n the ups compatri ot, alumni, various organizations such as the association between comrades, sponsors and organizers of the exclusion of such asso

24、ciation shall in such association i n corresponding positions; not the opportunity to weave network, Pro-close drain, Gang gang, but not the Alliance, Jin LAN sw orn, and so on. Third, there no organization was establishe d with the participation of fellow clubs, alumni, and friends. Breaking初二下学期数学

25、期末复习串讲考试范围第十六章分式（分式方程部分）第十七章反比例函数第十八章勾股定理第十九章四边形第二十章数据的分析第十六章分式（分式方程部分）一、本单元知识结构图：二、例题与习题：1式子23471 53,2823xbxxyxyxa中是分式的有 _个。1.当x_时，分式13x有意义；函数23xyx中x的取值范围是_ 2.若xyyxyx，则用含x的式子表示y为_ 3.将xyxy的x、y都扩大 5 倍，则分式的值_倍。化简ababab=_ 4.211( 1)( )52_ ; 201232()()( )223=_ 5.11,121,112xxxxx的最简公分母是_;2312121,425yyy的呢？

26、_ 6.化简11()22xyxyxxyx=_；2222()xyxyxyyx=_ 7.已知xxxx8,0872则_; 已知xyyxxyyx2222,23则=_ 8.已知113,xy则55xxyyxxyy=_; 已知411yx,则yxyxxyyx2322=_ 9.解方程：（1）12211xxx（2）65327621xxxxxxxx10. 若分式9432xx的值是正数，则x的取值范围是 _ 11. 若aaa1)1141 (的值是正整数，则整数a等于 _ 12.131kkx无解 ，k的值是 _;3601(1)xkxxx x有解 ，k取值范围是 _ 实际问题实 际问 题的 解分式方程整式方程分式方程的解

27、整式方程的解列方程去分母解整式方程检验目标目标精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 11 页actions using rules, and in the process of the concentration of disci plinary ruling, not convergence, not pull back as heavy or heavier punishment. Discipline focused di sci pline process at least 18 since the five-year

28、, five years is to pay close attention to the Central implementation eight provisions and anti-four winds. Fourth chapter to suspected illegal party discipli nary actions and distinguish between five different circumstances, provides for specific provisions respectively, effective cohesion to achiev

29、e party discipli ne and State Law 9. One is the 27th article of the Ordinance provides that party members found in the disciplinary review of corruption bribery, dereliction of duty and other alleged offences under criminal law, should be given to withdraw party posts, expelled from or pla ced on pr

30、obation within the party disciplinary action. Second, article 28th of the regulations i n the discipline of the party organization . Disci plinary punishment against life , Chapter 6. 3, annex Annex part of supplementary provisi ons, such as the permission, interpretation of the regulations, as well

31、 as the timing and retroactive, and so on. 11 (three) learningunderstanding Ordinance need grasp of several focus problem first a problem-on violation politi cal disci pline behavior new Ordinance sixth chapter put political discipline as six big disci pline of first, is main on opposition of led an

32、d opposition of basic theory, a nd line, and basic programme of, and basic experience, and basic requirements of disciplinary behavior made disposition provides, especially will 18 big yilai Central proposed strict political disci pline and political rules of requirements and practice results into f

33、or discipline pr ovisions, Adde d jump on t he ce ntral policy, clique, fight reviews, without principles and disregard the disciplinary provisions. These are the partys 18 since the comprehe nsive practi ce of strictly administering the party in the process of combining the rich content. (1) jump o

34、n the central policy violate the partys centrali zed a nd unified this issue is made under provisi ons of the party Constitution. Party Constitution stipulated in master uphold democratic centralism is the party building must adhere t o one of the four basic requirements. This items principles is pa

35、rty of fundamental Orga nization princi ples, is mass line in party of life in the of using, it requirements must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play levels party and members of enthusiasm and creative, while, also must

36、implemented right of concentrated, guarantee party of solidarity unified and action consistent, guarantee party of decided get quickly and effective of implementation. Central in devel ope d major approach poli cy Shi, through different of channel and way, full heard a bout party and members of view

37、s recommends, but 12 is some people face to face not said, and behind blather will Shang not sai d, a nd will Hou blather stage not said, a nd aiwan Xia blather, actually not only disrupt has people thought, some caused serious consequences, damage has party of concentrated unified, hamper has centr

38、al approach poli cy of implement implementation, also serious violation has democratic centralism of princi ples. No doubt, shall, in accordance with the regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the criticism should be given education or the appr opr

39、iate organization. (2) violate the partys solidarity and unity to the new section 48tto 52nd of the Ordinance, to violate the partys soli darity and unity, such as punishment of violations of political discipline as spe cified. The 52nd new missions Gang gang, clique , cli ques within the party, cul

40、tivating private power i nterests or by Exchange, creating a momentum for their activities, such as fishing for political capital, punishment imposed serious warnings or withdrawal of party posts in serious cases, punishme nt imposed or placed on probati on within the expelled. (3) on the rival grou

41、ps review provisi ons of the party Constitution, must comply with the obligations of the party faithful are party members. Party members must obey decided shall not contravene the Organization decided to have problems to find organizations, relying on the Organization, a dece ption organization, aga

42、inst the organization. For example . Female country (territory) outside, such as employment, income, property and investment matters, for failing to report, not truthfully report, undeclared, and so on, depending on the seri ousness, give criticism and education, within a time limit, shall be ordere

43、d to make checks and commands his conversation, criticized oradjustment of status, removal and so on, constitutes a disciplinary offence, disci plinary action in accorda nce with the relevant provisions. But since the origina l was not appropriate in the specific provisions of the regulations, for v

44、iolations of the provisi ons do not report, report the matters related to the personal behavior does not correspond to the discipline of sanction, in pra ctice it is difficult to operate. On this, for sol ution not re port, and not truthfully report personal about matters 15 asked blamed of problem,

45、 new Ordinance i ncrea sed has 67th article, on vi olation personal about matters report provides, not report, and not truthfully report of behavior proposed has clear of disposition according to, makes this class disci plinary behavior no longer has empty can drill, for carried out personal about m

46、atters checks verified, and cadres supervisi on, and discipline review , work provides has powerful of discipline guarantees. (2) with regard to illegal organizations, will participate in the fellow and alumni, to comrades 68th of the regulations provi des that the party cadres violating relevant re

47、gulations, participation in spontaneous fellow, alumni, friends, etc, to be punished according to the seriousness of it. Of particular note here is three things: first, this article is merely cadres, reflects the high re quirements for leading party cadres; the ot her is in violation of the 2002 Cen

48、tral Commission for disci pline inspection, the Central Organization Department and the general politi cal Department jointly issued the circular on leading cadres should not participate in the voluntary establishment of villagers and alumni and ally organization notice of the relevant provisi ons.

49、That is organized, villagers participating in the established clubs, alumni, comrades will constitute a disci plinary offence is contrary to the premise of this rule. Specified in the noticeleadi ng cadres should not participate i n the ups compatri ot, alumni, various organizations such as the asso

50、ciation between comrades, sponsors and organizers of the exclusion of such association shall in such association i n corresponding positions; not the opportunity to weave network, Pro-close drain, Gang gang, but not the Alliance, Jin LAN sw orn, and so on. Third, there no organization was establishe

51、 d with the participation of fellow clubs, alumni, and friends. Breaking13. 甲、乙两人分别从两地同时出发，若相向而行，则a 小时相遇；若同向而行，则b 小时甲追上乙，则甲的速度是乙的速度的_倍。14、解方程：（1）233xx（ 2）1222xxx（3）263111xx（4）012142xx15、2008 年初我国南方发生雪灾，某地电线被雪压断，供电局的维修队要到30 千米远的郊区进行抢修。维修工骑摩托车先走，15 分钟后，抢修车装载所需材料出发，结果两车同时到达抢修点。已知抢修车的速度是摩托车速度的1.5 倍，求两种车

52、的速度。16、甲、乙两同学玩“托球赛跑”游戏，商定：用球拍托着乒乓球从起跑线l起跑，绕过 P点跑回到起跑线（如图所示） ；途中乒乓球掉下时须捡起并回到掉球处继续赛跑，用时少者胜结果：甲同学由于心急，掉了球，浪费了6秒钟，乙同学则顺利跑完事后，甲同学说：“我俩所用的全部时间的和为50秒” ，乙同学说：“捡球过程不算在内时，甲的速度是我的1.2倍” 根据图文信息，请问哪位同学获胜？P 30 米l 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 11 页10某人往返于A、B 两地，去时先步行2 千米，再乘汽车行10 千米，回来时骑自行车，来回

53、所用时间恰好相等 .已知汽车每小时比这人步行多走16 千米，步行又比骑车每小时少走8 千米 . 若来回完全乘汽车能节约多少时间？11某一工程，在工程招标时，接到甲、乙两个工程队的投标书施工一天，需付甲工程队工程款1.2 万元，乙工程队工程款0.5 万元工程领导小组根据甲、乙两队的投标书测算，有如下方案：（ 1）甲队单独完成这项工程刚好如期完成；（ 2）乙队单独完成这项工程要比规定日期多用6 天；（ 3）若甲、乙两队合做3 天，余下的工程由乙队单独做也正好如期完成试问：在不耽误工期的前提下，你觉得哪一种施工方案最节省工程款？请说明理由第十七章反比例函数一、本章知识结构图：二、例题与习题：1下面的

54、函数是反比例函数的是（）A13xyBxxy22C2xyDxy2实际应用现实世界中的反比例关系建立数学模型反比例函数反比例函数的图象和性质精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 11 页actions using rules, and in the process of the concentration of disci plinary ruling, not convergence, not pull back as heavy or heavier punishment. Discipline focused di sci

55、pline process at least 18 since the five-year, five years is to pay close attention to the Central implementation eight provisions and anti-four winds. Fourth chapter to suspected illegal party discipli nary actions and distinguish between five different circumstances, provides for specific provisio

56、ns respectively, effective cohesion to achieve party discipli ne and State Law 9. One is the 27th article of the Ordinance provides that party members found in the disciplinary review of corruption bribery, dereliction of duty and other alleged offences under criminal law, should be given to withdra

57、w party posts, expelled from or pla ced on probation within the party disciplinary action. Second, article 28th of the regulations i n the discipline of the party organization . Disci plinary punishment against life , Chapter 6. 3, annex Annex part of supplementary provisi ons, such as the permissio

58、n, interpretation of the regulations, as well as the timing and retroactive, and so on. 11 (three) learningunderstanding Ordinance need grasp of several focus problem first a problem-on violation politi cal disci pline behavior new Ordinance sixth chapter put political discipline as six big disci pl

59、ine of first, is main on opposition of led and opposition of basic theory, a nd line, and basic programme of, and basic experience, and basic requirements of disciplinary behavior made disposition provides, especially will 18 big yilai Central proposed strict political disci pline and political rule

60、s of requirements and practice results into for discipline pr ovisions, Adde d jump on t he ce ntral policy, clique, fight reviews, without principles and disregard the disciplinary provisions. These are the partys 18 since the comprehe nsive practi ce of strictly administering the party in the proc

61、ess of combining the rich content. (1) jump on the central policy violate the partys centrali zed a nd unified this issue is made under provisi ons of the party Constitution. Party Constitution stipulated in master uphold democratic centralism is the party building must adhere t o one of the four ba

62、sic requirements. This items principles is party of fundamental Orga nization princi ples, is mass line in party of life in the of using, it requirements must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play levels party and members

63、of enthusiasm and creative, while, also must implemented right of concentrated, guarantee party of solidarity unified and action consistent, guarantee party of decided get quickly and effective of implementation. Central in devel ope d major approach poli cy Shi, through different of channel and way

64、, full heard a bout party and members of views recommends, but 12 is some people face to face not said, and behind blather will Shang not sai d, a nd will Hou blather stage not said, a nd aiwan Xia blather, actually not only disrupt has people thought, some caused serious consequences, damage has pa

65、rty of concentrated unified, hamper has central approach poli cy of implement implementation, also serious violation has democratic centralism of princi ples. No doubt, shall, in accordance with the regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the critic

66、ism should be given education or the appr opriate organization. (2) violate the partys solidarity and unity to the new section 48tto 52nd of the Ordinance, to violate the partys soli darity and unity, such as punishment of violations of political discipline as spe cified. The 52nd new missions Gang

67、gang, clique , cli ques within the party, cultivating private power i nterests or by Exchange, creating a momentum for their activities, such as fishing for political capital, punishment imposed serious warnings or withdrawal of party posts in serious cases, punishme nt imposed or placed on probati

68、on within the expelled. (3) on the rival groups review provisi ons of the party Constitution, must comply with the obligations of the party faithful are party members. Party members must obey decided shall not contravene the Organization decided to have problems to find organizations, relying on the

69、 Organization, a dece ption organization, against the organization. For example . Female country (territory) outside, such as employment, income, property and investment matters, for failing to report, not truthfully report, undeclared, and so on, depending on the seri ousness, give criticism and ed

70、ucation, within a time limit, shall be ordered to make checks and commands his conversation, criticized oradjustment of status, removal and so on, constitutes a disciplinary offence, disci plinary action in accorda nce with the relevant provisions. But since the origina l was not appropriate in the

71、specific provisions of the regulations, for violations of the provisi ons do not report, report the matters related to the personal behavior does not correspond to the discipline of sanction, in pra ctice it is difficult to operate. On this, for sol ution not re port, and not truthfully report perso

72、nal about matters 15 asked blamed of problem, new Ordinance i ncrea sed has 67th article, on vi olation personal about matters report provides, not report, and not truthfully report of behavior proposed has clear of disposition according to, makes this class disci plinary behavior no longer has empt

73、y can drill, for carried out personal about matters checks verified, and cadres supervisi on, and discipline review , work provides has powerful of discipline guarantees. (2) with regard to illegal organizations, will participate in the fellow and alumni, to comrades 68th of the regulations provi de

74、s that the party cadres violating relevant regulations, participation in spontaneous fellow, alumni, friends, etc, to be punished according to the seriousness of it. Of particular note here is three things: first, this article is merely cadres, reflects the high re quirements for leading party cadre

75、s; the ot her is in violation of the 2002 Central Commission for disci pline inspection, the Central Organization Department and the general politi cal Department jointly issued the circular on leading cadres should not participate in the voluntary establishment of villagers and alumni and ally orga

76、nization notice of the relevant provisi ons. That is organized, villagers participating in the established clubs, alumni, comrades will constitute a disci plinary offence is contrary to the premise of this rule. Specified in the noticeleadi ng cadres should not participate i n the ups compatri ot, a

77、lumni, various organizations such as the association between comrades, sponsors and organizers of the exclusion of such association shall in such association i n corresponding positions; not the opportunity to weave network, Pro-close drain, Gang gang, but not the Alliance, Jin LAN sw orn, and so on

78、. Third, there no organization was establishe d with the participation of fellow clubs, alumni, and friends. Breaking5某物体对地面的压力为定值，物体对地面的压强p（Pa）与受力面积S （m2）之间的函数关系如图所示，这一函数表达式为p6点(231)Pm，在反比例函数1yx的图象上，则m7.点（ 3， 4）在反比例函数kyx的图象上，则下列各点中，在此图象上的是（）A.（3,4）B.（ 2， 6）C.（ 2， 6）D.（ 3， 4）11在平面直角坐标系中，将点(5 3)P，向左平

79、移6 个单位，再向下平移1 个单位，恰好在函数kyx的图象上，则此函数的图象分布在第象限12. 对于反比例函数xky2(0k)，下列说法不正确的是（）A. 它的图象分布在第一、三象限B. 点（k，k）在它的图象上C. 它的图象是中心对称图形D. 每个象限内，y随x的增大而增大14已知反比例函数yx2k的图象位于第一、第三象限，则k 的取值范围是（） （ A）k2 （B） k2 （C）k2 （D） k2 16.若反比例函数1kyx的图象在其每个象限内,y 随 x 的增大而减小,则 k 的值可以是 （）A.-1 B.3 C.0 D.-3 18设反比例函数)0(kxky中，在每一象限内，y随x的增大

80、而增大，则一次函数kkxy的图象不经过 ( ) (A) 第一象限(B)第二象限(C)第三象限(D) 第四象限20若()A ab，(2)B ac，两点均在函数1yx的图象上，且0a，则b与c的大小关系为（）AbcBbcCbcD无法判断21已知点A（3，y1） ，B（- 2，y2） ，C（- 6，y3）分别为函数xky（k0）的图象上的三个点则y1、y2、y3的大小关系为（用“ ”连接）22. 在反比例函数12myx的图象上有两点A11,x y，B22,xy，当120xx时，有12yy，则m的取值范围是（）A、0mB、0mC、12mD、12m24 已知直线mxy与双曲线xky的一个交点A 的坐标为

81、（ -1，-2） 则m=_；k=_；它们的另一个交点坐标是_28. 函数1kyx的图象与直线yx没有交点，那么k 的取值范围是（）A1kB1kC1kD1k31已知反比例函数2yx，下列结论中，不正确的是（）( 第 15 题 ）1016S/m2p/PaAO第 34 题图- 1 2 - 1 2 x y A B O 第 33 题图精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 11 页A图象必经过点(12)，By随x的增大而减少C图象在第一、三象限内 D 若1x，则2y33如图，一次函数与反比例函数的图象相交于、B 两点，则图中使反比例函数的

82、值小于一次函数的值的 x 的取值范围是_34如图，正方形ABOC的边长为 2，反比例函数xky过点A，则K的值是（）A2B-2C4D-436如图，若点A在反比例函数(0)kykx的图象上，AMx轴于点M，AMO的面积为3，则k37在反比例函数4yx的图象中，阴影部分的面积不等于4 的是（）ABCD42. 已知反比例函数102)2(mxmy的图象，在每一象限内y 随 x 的增大而减小，求反比例函数的解析式. 45. 已知一次函数ykxb的图象与反比例函数myx的图象相交于A（-6，-2） 、 B（4，3）两点 . （1）求出两函数解析式；（2）画出这两个函数的图象；（3）根据图象回答：当x为何值

83、时，一次函数的函数值大于反比例函数的函数值？第 36 题精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页，共 11 页actions using rules, and in the process of the concentration of disci plinary ruling, not convergence, not pull back as heavy or heavier punishment. Discipline focused di sci pline process at least 18 since the five

84、-year, five years is to pay close attention to the Central implementation eight provisions and anti-four winds. Fourth chapter to suspected illegal party discipli nary actions and distinguish between five different circumstances, provides for specific provisions respectively, effective cohesion to a

85、chieve party discipli ne and State Law 9. One is the 27th article of the Ordinance provides that party members found in the disciplinary review of corruption bribery, dereliction of duty and other alleged offences under criminal law, should be given to withdraw party posts, expelled from or pla ced

86、on probation within the party disciplinary action. Second, article 28th of the regulations i n the discipline of the party organization . Disci plinary punishment against life , Chapter 6. 3, annex Annex part of supplementary provisi ons, such as the permission, interpretation of the regulations, as

87、 well as the timing and retroactive, and so on. 11 (three) learningunderstanding Ordinance need grasp of several focus problem first a problem-on violation politi cal disci pline behavior new Ordinance sixth chapter put political discipline as six big disci pline of first, is main on opposition of l

88、ed and opposition of basic theory, a nd line, and basic programme of, and basic experience, and basic requirements of disciplinary behavior made disposition provides, especially will 18 big yilai Central proposed strict political disci pline and political rules of requirements and practice results i

89、nto for discipline pr ovisions, Adde d jump on t he ce ntral policy, clique, fight reviews, without principles and disregard the disciplinary provisions. These are the partys 18 since the comprehe nsive practi ce of strictly administering the party in the process of combining the rich content. (1) j

90、ump on the central policy violate the partys centrali zed a nd unified this issue is made under provisi ons of the party Constitution. Party Constitution stipulated in master uphold democratic centralism is the party building must adhere t o one of the four basic requirements. This items principles

91、is party of fundamental Orga nization princi ples, is mass line in party of life in the of using, it requirements must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play levels party and members of enthusiasm and creative, while, also

92、must implemented right of concentrated, guarantee party of solidarity unified and action consistent, guarantee party of decided get quickly and effective of implementation. Central in devel ope d major approach poli cy Shi, through different of channel and way, full heard a bout party and members of

93、 views recommends, but 12 is some people face to face not said, and behind blather will Shang not sai d, a nd will Hou blather stage not said, a nd aiwan Xia blather, actually not only disrupt has people thought, some caused serious consequences, damage has party of concentrated unified, hamper has

94、central approach poli cy of implement implementation, also serious violation has democratic centralism of princi ples. No doubt, shall, in accordance with the regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the criticism should be given education or the app

95、r opriate organization. (2) violate the partys solidarity and unity to the new section 48tto 52nd of the Ordinance, to violate the partys soli darity and unity, such as punishment of violations of political discipline as spe cified. The 52nd new missions Gang gang, clique , cli ques within the party

96、, cultivating private power i nterests or by Exchange, creating a momentum for their activities, such as fishing for political capital, punishment imposed serious warnings or withdrawal of party posts in serious cases, punishme nt imposed or placed on probati on within the expelled. (3) on the rival

97、 groups review provisi ons of the party Constitution, must comply with the obligations of the party faithful are party members. Party members must obey decided shall not contravene the Organization decided to have problems to find organizations, relying on the Organization, a dece ption organization

98、, against the organization. For example . Female country (territory) outside, such as employment, income, property and investment matters, for failing to report, not truthfully report, undeclared, and so on, depending on the seri ousness, give criticism and education, within a time limit, shall be o

99、rdered to make checks and commands his conversation, criticized oradjustment of status, removal and so on, constitutes a disciplinary offence, disci plinary action in accorda nce with the relevant provisions. But since the origina l was not appropriate in the specific provisions of the regulations,

100、for violations of the provisi ons do not report, report the matters related to the personal behavior does not correspond to the discipline of sanction, in pra ctice it is difficult to operate. On this, for sol ution not re port, and not truthfully report personal about matters 15 asked blamed of pro

101、blem, new Ordinance i ncrea sed has 67th article, on vi olation personal about matters report provides, not report, and not truthfully report of behavior proposed has clear of disposition according to, makes this class disci plinary behavior no longer has empty can drill, for carried out personal ab

102、out matters checks verified, and cadres supervisi on, and discipline review , work provides has powerful of discipline guarantees. (2) with regard to illegal organizations, will participate in the fellow and alumni, to comrades 68th of the regulations provi des that the party cadres violating releva

103、nt regulations, participation in spontaneous fellow, alumni, friends, etc, to be punished according to the seriousness of it. Of particular note here is three things: first, this article is merely cadres, reflects the high re quirements for leading party cadres; the ot her is in violation of the 200

104、2 Central Commission for disci pline inspection, the Central Organization Department and the general politi cal Department jointly issued the circular on leading cadres should not participate in the voluntary establishment of villagers and alumni and ally organization notice of the relevant provisi

105、ons. That is organized, villagers participating in the established clubs, alumni, comrades will constitute a disci plinary offence is contrary to the premise of this rule. Specified in the noticeleadi ng cadres should not participate i n the ups compatri ot, alumni, various organizations such as the

106、 association between comrades, sponsors and organizers of the exclusion of such association shall in such association i n corresponding positions; not the opportunity to weave network, Pro-close drain, Gang gang, but not the Alliance, Jin LAN sw orn, and so on. Third, there no organization was estab

107、lishe d with the participation of fellow clubs, alumni, and friends. Breaking46如图，直线y x1 与双曲线x2y交于 A、B 两点，其中 A 点在第一象限C 为 x 轴正半轴上一点，且SABC3(1)求 A、B、C 三点的坐标；(2)在坐标平面内，是否存在点P，使以 A、B、C、P 为顶点的四边形为平行四边形？若存在，请直接写出点 P 的坐标，若不存在，请说明理由47为了预防流感，某学校在休息天用药熏消毒法对教室进行消毒已知药物释放过程中，室内每立方米空气中的含药量y（毫克）与时间t（小时）成正比；药物释放完毕后，

108、y与t的函数关系式为tay（a为常数），如图所示据图中提供的信息，解答下列问题：（1）写出从药物释放开始，y与t之间的两个函数关系式及相应的自变量的取值范围；（2）据测定，当空气中每立方米的含药量降低到0.25毫克以下时，学生方可进入教室，那么从药物释放开始，至少需要经过多少小时后，学生才能进入教室? 51如图，一次函数y=kx+b 的图象经过第一、二、三象限，且与反比例函数图象相交于A，B 两点，与 y轴交于点 C，与 x 轴交于点D，5OB且点 B 横坐标是点B 纵坐标的 2 倍（1）求反比例函数的解析式；（2）设点A横坐标为m，ABO面积为S，求S与m的函数关系式，并求出自变量的取值范围

109、AOCxyB(第 46 题图)O x y A C D B （51 题图）精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 6 页，共 11 页第十八章勾股定理一、本章知识结构图：二、例题与习题：1. 在 ABC中, A=90 , 则下列式子中不成立的是（）. A.222ACABBC B. 222BCACAB C. 222ACBCAB D.222ABBCAC. 实际问题（判定直角三角形）实际问题（直角三角形边长计算）勾股定理勾股定理的逆定理精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页，共 11 页

110、actions using rules, and in the process of the concentration of disci plinary ruling, not convergence, not pull back as heavy or heavier punishment. Discipline focused di sci pline process at least 18 since the five-year, five years is to pay close attention to the Central implementation eight provi

111、sions and anti-four winds. Fourth chapter to suspected illegal party discipli nary actions and distinguish between five different circumstances, provides for specific provisions respectively, effective cohesion to achieve party discipli ne and State Law 9. One is the 27th article of the Ordinance pr

112、ovides that party members found in the disciplinary review of corruption bribery, dereliction of duty and other alleged offences under criminal law, should be given to withdraw party posts, expelled from or pla ced on probation within the party disciplinary action. Second, article 28th of the regula

113、tions i n the discipline of the party organization . Disci plinary punishment against life , Chapter 6. 3, annex Annex part of supplementary provisi ons, such as the permission, interpretation of the regulations, as well as the timing and retroactive, and so on. 11 (three) learningunderstanding Ordi

114、nance need grasp of several focus problem first a problem-on violation politi cal disci pline behavior new Ordinance sixth chapter put political discipline as six big disci pline of first, is main on opposition of led and opposition of basic theory, a nd line, and basic programme of, and basic exper

115、ience, and basic requirements of disciplinary behavior made disposition provides, especially will 18 big yilai Central proposed strict political disci pline and political rules of requirements and practice results into for discipline pr ovisions, Adde d jump on t he ce ntral policy, clique, fight re

116、views, without principles and disregard the disciplinary provisions. These are the partys 18 since the comprehe nsive practi ce of strictly administering the party in the process of combining the rich content. (1) jump on the central policy violate the partys centrali zed a nd unified this issue is

117、made under provisi ons of the party Constitution. Party Constitution stipulated in master uphold democratic centralism is the party building must adhere t o one of the four basic requirements. This items principles is party of fundamental Orga nization princi ples, is mass line in party of life in t

118、he of using, it requirements must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play levels party and members of enthusiasm and creative, while, also must implemented right of concentrated, guarantee party of solidarity unified and act

119、ion consistent, guarantee party of decided get quickly and effective of implementation. Central in devel ope d major approach poli cy Shi, through different of channel and way, full heard a bout party and members of views recommends, but 12 is some people face to face not said, and behind blather wi

120、ll Shang not sai d, a nd will Hou blather stage not said, a nd aiwan Xia blather, actually not only disrupt has people thought, some caused serious consequences, damage has party of concentrated unified, hamper has central approach poli cy of implement implementation, also serious violation has demo

121、cratic centralism of princi ples. No doubt, shall, in accordance with the regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the criticism should be given education or the appr opriate organization. (2) violate the partys solidarity and unity to the new sectio

122、n 48tto 52nd of the Ordinance, to violate the partys soli darity and unity, such as punishment of violations of political discipline as spe cified. The 52nd new missions Gang gang, clique , cli ques within the party, cultivating private power i nterests or by Exchange, creating a momentum for their

123、activities, such as fishing for political capital, punishment imposed serious warnings or withdrawal of party posts in serious cases, punishme nt imposed or placed on probati on within the expelled. (3) on the rival groups review provisi ons of the party Constitution, must comply with the obligation

124、s of the party faithful are party members. Party members must obey decided shall not contravene the Organization decided to have problems to find organizations, relying on the Organization, a dece ption organization, against the organization. For example . Female country (territory) outside, such as

125、 employment, income, property and investment matters, for failing to report, not truthfully report, undeclared, and so on, depending on the seri ousness, give criticism and education, within a time limit, shall be ordered to make checks and commands his conversation, criticized oradjustment of statu

126、s, removal and so on, constitutes a disciplinary offence, disci plinary action in accorda nce with the relevant provisions. But since the origina l was not appropriate in the specific provisions of the regulations, for violations of the provisi ons do not report, report the matters related to the pe

127、rsonal behavior does not correspond to the discipline of sanction, in pra ctice it is difficult to operate. On this, for sol ution not re port, and not truthfully report personal about matters 15 asked blamed of problem, new Ordinance i ncrea sed has 67th article, on vi olation personal about matter

128、s report provides, not report, and not truthfully report of behavior proposed has clear of disposition according to, makes this class disci plinary behavior no longer has empty can drill, for carried out personal about matters checks verified, and cadres supervisi on, and discipline review , work pr

129、ovides has powerful of discipline guarantees. (2) with regard to illegal organizations, will participate in the fellow and alumni, to comrades 68th of the regulations provi des that the party cadres violating relevant regulations, participation in spontaneous fellow, alumni, friends, etc, to be puni

130、shed according to the seriousness of it. Of particular note here is three things: first, this article is merely cadres, reflects the high re quirements for leading party cadres; the ot her is in violation of the 2002 Central Commission for disci pline inspection, the Central Organization Department

131、and the general politi cal Department jointly issued the circular on leading cadres should not participate in the voluntary establishment of villagers and alumni and ally organization notice of the relevant provisi ons. That is organized, villagers participating in the established clubs, alumni, com

132、rades will constitute a disci plinary offence is contrary to the premise of this rule. Specified in the noticeleadi ng cadres should not participate i n the ups compatri ot, alumni, various organizations such as the association between comrades, sponsors and organizers of the exclusion of such assoc

133、iation shall in such association i n corresponding positions; not the opportunity to weave network, Pro-close drain, Gang gang, but not the Alliance, Jin LAN sw orn, and so on. Third, there no organization was establishe d with the participation of fellow clubs, alumni, and friends. Breaking3 ABC 中，

134、 A、 B、 C 的对边分别是a、 b、c，下列命题中的假命题是（）（A）如果 C B=A，则 ABC 是直角三角形（B）如果 c2= b2a2，则 ABC 是直角三角形，且C=90（C）如果（ ca） （ca）=b2，则 ABC 是直角三角形（D）如果 A： B： C=5： 2：3，则 ABC 是直角三角形4. 适合下列条件的三角形ABC 中，直角三角形的个数为（）. ;51,41,31cba a=b, A=45; A=32, B=58; a=7,b=24,c=25; a=2.5,b=2,c=3. A.2 个 B.3个 C.4个 D.5个6利用图（ 1）或图（ 2）两个图形中的有关面积的等量

135、关系都能证明数学中一个十分著名的定理，这个定理称为，该定理的结论其数学表达式是7图 7-1 是我国古代著名的“赵爽弦图”的示意图，它是由四个全等的直角三角形围成的若6AC，5BC，将四个直角三角形中边长为6 的直角边分别向外延长一倍，得到图7-2 所示的“数学风车” ，则这个风车的外围周长是12. 直角三角形的两条直角边的长分别为5，12，则其斜边上的高为（）. A.cm1380B.13cm C.6cm D.cm13608如图，四边形ABCD，EFGH，NHMC都是正方形， 边长分别为abc， ，；ABNEF， ， ，五点在同一直线上，则c（用含有ab，的代数式表示）13. 边长为 a的正三角

136、形的面积等于 _ .14已知等边三角形ABC的边长为33，则ABC的周长是 _，面积是 _16如图，矩形纸片ABCD 中， AD=9，AB=3，将其折叠，使点D 与点 B 重合，折痕为EF，那么折痕EF的长为 _18如图，一束光线从y 轴上点 A（0，1）发出，经过x 轴上点 C 反射后，经过点B（6，2） ，则光线从A点到 B 点经过的路线的长度为21如图， 以等腰三角形AOB 的斜边为直角边向外作第2 个等腰直角三角形ABA1，再以等腰直角三角形A B C 图 7-1 图 7-2 第 6 题图B1B2A1AOB第 21 题图CA F D B C 第 16 题图E 第 18 题图a D C

137、B A M c N E F b G H （第 8 题）精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 8 页，共 11 页ABA1的斜边为直角边向外作第3 个等腰直角三角形A1BB1，如此作下去，若OAOB1，则第 n个等腰直角三角形的面积Sn_。26某大草原上有一条笔直的公路，在紧靠公路相距40 千米的 A、B 两地，分别有甲、乙两个医疗站，如图，在 A 地北偏东45 、B 地北偏西60 方向上有一牧民区C一天，甲医疗队接到牧民区的求救电话，立刻设计了两种救助方案，方案I：从 A 地开车沿公路到离牧民区C 最近的 D 处，再开车穿越草地沿DC 方

138、向到牧民区C方案 II：从 A 地开车穿越草地沿AC 方向到牧民区C 已知汽车在公路上行驶的速度是在草地上行驶速度的3 倍（1）求牧民区到公路的最短距离CD（2）你认为甲医疗队设计的两种救助方案，哪一种方案比较合理？并说明理由（结果精确到0.1参考数据：3 取 1.73，2 取 1.41）28. 一块四边形的草地ABCD,其中 A=60,B=D=90 ,AB=20m,CD=10m,求这块草地的面积.30. 在 ABC中， AB=15,AC=13,高 AD=12,求 ABC的周长。31在一平直河岸l同侧有AB，两个村庄，AB，到l的距离分别是3km 和 2km，kmABa(1)a现计划在河岸l上

139、建一抽水站P，用输水管向两个村庄供水A D 北C 东4560第 26 题图第 28 题精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 9 页，共 11 页actions using rules, and in the process of the concentration of disci plinary ruling, not convergence, not pull back as heavy or heavier punishment. Discipline focused di sci pline process at least 18

140、 since the five-year, five years is to pay close attention to the Central implementation eight provisions and anti-four winds. Fourth chapter to suspected illegal party discipli nary actions and distinguish between five different circumstances, provides for specific provisions respectively, effectiv

141、e cohesion to achieve party discipli ne and State Law 9. One is the 27th article of the Ordinance provides that party members found in the disciplinary review of corruption bribery, dereliction of duty and other alleged offences under criminal law, should be given to withdraw party posts, expelled f

142、rom or pla ced on probation within the party disciplinary action. Second, article 28th of the regulations i n the discipline of the party organization . Disci plinary punishment against life , Chapter 6. 3, annex Annex part of supplementary provisi ons, such as the permission, interpretation of the

143、regulations, as well as the timing and retroactive, and so on. 11 (three) learningunderstanding Ordinance need grasp of several focus problem first a problem-on violation politi cal disci pline behavior new Ordinance sixth chapter put political discipline as six big disci pline of first, is main on

144、opposition of led and opposition of basic theory, a nd line, and basic programme of, and basic experience, and basic requirements of disciplinary behavior made disposition provides, especially will 18 big yilai Central proposed strict political disci pline and political rules of requirements and pra

145、ctice results into for discipline pr ovisions, Adde d jump on t he ce ntral policy, clique, fight reviews, without principles and disregard the disciplinary provisions. These are the partys 18 since the comprehe nsive practi ce of strictly administering the party in the process of combining the rich

146、 content. (1) jump on the central policy violate the partys centrali zed a nd unified this issue is made under provisi ons of the party Constitution. Party Constitution stipulated in master uphold democratic centralism is the party building must adhere t o one of the four basic requirements. This it

147、ems principles is party of fundamental Orga nization princi ples, is mass line in party of life in the of using, it requirements must full develop party democratic, respect members of subject status, guarantees members of democratic right, full play levels party and members of enthusiasm and creativ

148、e, while, also must implemented right of concentrated, guarantee party of solidarity unified and action consistent, guarantee party of decided get quickly and effective of implementation. Central in devel ope d major approach poli cy Shi, through different of channel and way, full heard a bout party

149、 and members of views recommends, but 12 is some people face to face not said, and behind blather will Shang not sai d, a nd will Hou blather stage not said, a nd aiwan Xia blather, actually not only disrupt has people thought, some caused serious consequences, damage has party of concentrated unifi

150、ed, hamper has central approach poli cy of implement implementation, also serious violation has democratic centralism of princi ples. No doubt, shall, in accordance with the regulations stipulated in the 46th of appropriate sanctions. Without serious consequences, the criticism should be given educa

151、tion or the appr opriate organization. (2) violate the partys solidarity and unity to the new section 48tto 52nd of the Ordinance, to violate the partys soli darity and unity, such as punishment of violations of political discipline as spe cified. The 52nd new missions Gang gang, clique , cli ques w

152、ithin the party, cultivating private power i nterests or by Exchange, creating a momentum for their activities, such as fishing for political capital, punishment imposed serious warnings or withdrawal of party posts in serious cases, punishme nt imposed or placed on probati on within the expelled. (

153、3) on the rival groups review provisi ons of the party Constitution, must comply with the obligations of the party faithful are party members. Party members must obey decided shall not contravene the Organization decided to have problems to find organizations, relying on the Organization, a dece pti

154、on organization, against the organization. For example . Female country (territory) outside, such as employment, income, property and investment matters, for failing to report, not truthfully report, undeclared, and so on, depending on the seri ousness, give criticism and education, within a time li

155、mit, shall be ordered to make checks and commands his conversation, criticized oradjustment of status, removal and so on, constitutes a disciplinary offence, disci plinary action in accorda nce with the relevant provisions. But since the origina l was not appropriate in the specific provisions of th

156、e regulations, for violations of the provisi ons do not report, report the matters related to the personal behavior does not correspond to the discipline of sanction, in pra ctice it is difficult to operate. On this, for sol ution not re port, and not truthfully report personal about matters 15 aske

157、d blamed of problem, new Ordinance i ncrea sed has 67th article, on vi olation personal about matters report provides, not report, and not truthfully report of behavior proposed has clear of disposition according to, makes this class disci plinary behavior no longer has empty can drill, for carried

158、out personal about matters checks verified, and cadres supervisi on, and discipline review , work provides has powerful of discipline guarantees. (2) with regard to illegal organizations, will participate in the fellow and alumni, to comrades 68th of the regulations provi des that the party cadres v

159、iolating relevant regulations, participation in spontaneous fellow, alumni, friends, etc, to be punished according to the seriousness of it. Of particular note here is three things: first, this article is merely cadres, reflects the high re quirements for leading party cadres; the ot her is in viola

160、tion of the 2002 Central Commission for disci pline inspection, the Central Organization Department and the general politi cal Department jointly issued the circular on leading cadres should not participate in the voluntary establishment of villagers and alumni and ally organization notice of the re

161、levant provisi ons. That is organized, villagers participating in the established clubs, alumni, comrades will constitute a disci plinary offence is contrary to the premise of this rule. Specified in the noticeleadi ng cadres should not participate i n the ups compatri ot, alumni, various organizati

162、ons such as the association between comrades, sponsors and organizers of the exclusion of such association shall in such association i n corresponding positions; not the opportunity to weave network, Pro-close drain, Gang gang, but not the Alliance, Jin LAN sw orn, and so on. Third, there no organiz

163、ation was establishe d with the participation of fellow clubs, alumni, and friends. Breaking方案设计某班数学兴趣小组设计了两种铺设管道方案：图13-1 是方案一的示意图，设该方案中管道长度为1d，且1(km)dPBBA（其中BPl于点P） ；图13-2 是方案二的示意图，设该方案中管道长度为2d，且2(km)dPAPB（其中点A与点A关于l对称，A B与l交于点P） 观察计算（1）在方案一中，1dkm（用含a的式子表示） ；（2）在方案二中， 组长小宇为了计算2d的长， 作了如图31-3 所示的辅助线，

164、 请你按小宇同学的思路计算，2dkm（用含a的式子表示） 探索归纳（1）当4a时，比较大小：12_dd（填“” 、 “”或“” ） ；当6a时，比较大小：12_dd（填“”、 “”或“” ） ；（2）请你参考右边方框中的方法指导，就a（当1a时）的所有取值情况进行分析，要使铺设的管道长度较短，应选择方案一还是方案二？【练习】1.若三角形三边长是：3 ,2, 1；51,41,31；2225,4,3； 9， 40，41；122,2 , 122nnnn；1)(),(2 , 1)(22nmnmnm；构成直角三角形的有_ 2. (1)填入勾股数： 6，8， _；11， _，_。(2) 填入三角形的边长：

165、6，8，_; 直角三角形的两边为3，4，其第三边的平方为_. 3.在 ABC 中，:1:1:2a b c，则 ABC 是_三角形。4.在 RtABC 中，221,1,2ABnBCnACn，则 A+ B=_. 5.命题“邻补角的两条角平分线互相垂直”的逆命题是_. 6.若三角形的三边长分别是1,2,3xxx，当x=_时，此三角形是直角三角形。A B P l l A B P AC 图 31-1 图 31-2 l A B P AC 图 31-3 K 方法指导当不易直接比较两个正数m与n的大小时，可以对它们的平方进行比较：2()()mnmn mn，0mn，22()mn与()mn的符号相同当220mn时

166、，0mn，即mn；当220mn时，0mn，即mn；当220mn时，0mn，即mn；精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 10 页，共 11 页7CD 是 RtABC 斜边上的高，若AB=1 ，AC： BC=4： 1，则 CD 的长是 _. 8. 在 ABC 中， AB=15 ，AC=13，高 AD=12 ，则 ABC 的周长是 _ 9.在 ABC 中， B=30， AB=2 ，AC=2，则 BAC=_ 10 一个长 12cm，宽 4cm，高 3cm 的长方形铁盒能放进的笔直木棒最长为_cm。11.RtABC 的斜边长2，周长为62，则ABCS=_ 12. ABC 的周长是123，一边长33，其他两边的差是3，则ABCS=_ 13.如图，在直线l上摆放着七个正方形，已知斜放置的三个正方形的面积分别是1，2，3，正放置的四个正方形的面积依次是4321,SSSS,则4321SSSS=_ 14.如图，三个外径都是1m 的圆球叠在一起，求高度h。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 11 页，共 11 页