(全国用)2018年高考英语二轮复习与增分策略 专题二 七选五 第一节 四大解题技巧课件

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1、第一节四大解题技巧专题二七选五栏目索引一、扫读全文,确定关键词二、语意判断三、黄金三步骤四、代入复读 (2017全国全国)If anyone had told me three years ago that I would be spending most of my weekends camping,I would have laughed heartily.Campers,in my eyes,were people who enjoyed insect bites,ill-cooked meals,and uncomfortable sleeping bags.They had noth

2、ing in common with me. 36 一、扫读全文,确定关键词典例1The friends who introduced me to camping thought that it meant to be a pioneer.37.(C.The trip they took me on was a rough one.) We slept in a tent,cooked over an open fire,and walked a long distance to take the shower and use the bathroom.This brief visit wit

3、h Mother Nature cost me two days off from work,recovering from a bad case of sunburn and the doctors bill for my sons food poisoning.I was,nevertheless,talked into going on another fun-filled holiday in the wilderness.38.(A.This time there was no tent.) Instead,we had a pop-up camper with comfortabl

4、e beds and an air conditioner.My nature-loving friends had remembered to bring all the necessities of life.39 (F.After the trip, my family became quite interested in camping.) We have done a lot of it since.Recently,we bought a twenty-eight-foot travel trailer complete with a bathroom and a built-in

5、 TV set.There is a separate bedroom, a modern kitchen with a refrigerator.The trailer even has matching carpet and curtains.40(E.I must say that I have certainly come to enjoy camping.) It must be true that sooner or later,everyone finds his or her way back to nature.I recommend that you find your w

6、ay in style.A.This time there was no tent.B.Things are going to be improved.C.The trip they took me on was a rough one.D.I was to learn a lot about camping since then,however.E.I must say that I have certainly come to enjoy camping.F.After the trip,my family became quite interested in camping.G.Ther

7、e was no shade as the trees were no more than 3 feet tall.解解析析扫扫读读全全文文可可知知本本文文是是一一篇篇记记叙叙文文,关关键键词词是是露露营营(camping)。根根据据前前文文可可知知三三年年前前作作者者认认为为露露营营和和自自己己无无关关,而而后后文文中中表表明明作作者者热热爱爱露露营营,暗暗示示此此处处作作者者对对待待露露营营的的情情感感态态度度应应该该出出现现转转变变。D选选项项中中的的however表表示转折,且示转折,且since then“自从那时候起自从那时候起”和前文时间吻合。故选和前文时间吻合。故选D。答案解析

8、点津点津七七选选五五是是一一篇篇短短文文,因因此此多多数数阅阅读读技技巧巧对对此此适适用用。扫扫读读全全文文,尤尤其其是是首首尾尾段段、首首尾尾句句以以及及独独立立成成段段的的句句子子和和文文章章中中带带转转折折词词的的句句子子等等,目目的的是是找找出出主主题题词词并并掌掌握握文文章章的的主主要要内内容容。正正确确答答案案往往往往与与主主题题词词有有高高度的重合性:度的重合性:“形似、意似形似、意似”。(2016全国全国) Secret codes(密密 码码 ) keep messages private.Banks, companies, and government agencies u

9、se secret codes in doing business,especially when information is sent by computer.People have used secret codes for thousands of years.36.(D.As long as there have been codes,people have tried to break them.) Code breaking never lags(落落后后) far behind code making.The science of creating and reading co

10、ded messages is called cryptography.牛刀小试1There are three main types of cryptography.37.(E.You can hide a message by having the first letters of each word spell it out.) For example,the first letters of “My elephant eats too many eels” spell out the hidden message “Meet me.”38.(G.Another way to hide

11、a message is to use symbols to stand for specific letters of the alphabet.)You might represent each letter with a number,for example.Lets number the letters of the alphabet,in order,from 1 to 26.If we substitute a number for each letter,the message “Meet me” would read “13 5 5 20 13 5.”A code uses s

12、ymbols to replace words,phrases,or sentences.To read the message of a real code,you must have a code book.39.(F.With a code book,you might write down words that would stand for other words.) For example, “bridge” might stand for “meet” and “out” might stand for “me.” The message “Bridge out” would a

13、ctually mean “Meet me.” 40 However,it is also hard to keep a code book secret for long.So codes must be changed frequently.A.It is very hard to break a code without the code book.B.In any language,some letters are used more than others.C.Only people who know the keyword can read the message.D.As lon

14、g as there have been codes,people have tried to break them.E.You can hide a message by having the first letters of each word spell it out.F.With a code book,you might write down words that would stand for other words.G.Another way to hide a message is to use symbols to stand for specific letters of

15、the alphabet. 答案解析 (2017全国全国,片段,片段)We slept in a tent,cooked over an open fire,and walked a long distance to take the shower and use the bathroom.This brief visit with Mother Nature cost me two days off from work,recovering from a bad case of sunburn and the doctors bill for my sons food poisoning.I

16、 was,nevertheless,talked into going on another fun-filled holiday in the wilderness. 38 Instead,we had a pop-up camper with comfortable beds and an air conditioner.My nature-loving friends had remembered to bring all the necessities of life. 二、语意判断典例2解解析析 根根据据前前文文“We slept in a tent.”可可知知作作者者第第一一次次露

17、露营营时时住住帐帐篷篷,而而后后文文中中“Instead,we had a pop-up camper with comfortable beds and an air conditioner.”说说明明作作者者这这次次露露营营有有床床有有空空调调。由由此此可可知知,这这次次没有帐篷了。故选没有帐篷了。故选A。A.This time there was no tent.B.Things are going to be improved.C.The trip they took me on was a rough one.D.I was to learn a lot about camping

18、since then,however.E.I must say that I have certainly come to enjoy camping.F.After the trip,my family became quite interested in camping.G.There was no shade as the trees were no more than 3 feet tall.答案解析点津点津七七选选五五解解题题时时要要读读懂懂前前后后文文的的句句子子,弄弄清清楚楚前前后后的的逻逻辑辑关关系系,然然后后选选取取正正确确答答案案,因因此此正正确确理理解解设设空空前前后后文

19、文是是解解题题的的关关键键,拿拿到到试试题题后后要要瞻前顾后,科学解题。瞻前顾后,科学解题。(2016全国全国,片段,片段)People have used secret codes for thousands of years. 36 Code breaking never lags(落落后后) far behind code making.A.It is very hard to break a code without the code book.B.In any language,some letters are used more than others.C.Only people

20、who know the keyword can read the message.D.As long as there have been codes,people have tried to break them.E.You can hide a message by having the first letters of each word spell it out.F.With a code book, ,you might write down words that would stand for other words.G.Another way to hide a message

21、 is to use symbols to stand for specific letters of the alphabet. 牛刀小试2答案解析 (2017全国全国,片段,片段) 37 We slept in a tent,cooked over an open fire,and walked a long distance to take the shower and use the bathroom.A.This time there was no tent.B.Things are going to be improved.C.The trip they took me on wa

22、s a rough one.D.I was to learn a lot about camping since then,however.E.I must say that I have certainly come to enjoy camping.F.After the trip,my family became quite interested in camping.G.There was no shade as the trees were no more than 3 feet tall. 三、黄金三步骤典例3答案解析点津点津步步骤骤一一:从从原原文文设设空空的的前前后后寻寻找找关

23、关键键词词;步步骤骤二二:阅阅读读各各个个选选项项,标标记关键词;步骤三:把两类关键词进行匹配,迅速锁定正确答案。记关键词;步骤三:把两类关键词进行匹配,迅速锁定正确答案。(2016全国全国,片段,片段)There are three main types of cryptography. 37 For example,the first letters of “My elephant eats too many eels” spell out the hidden message “Meet me.”A.It is very hard to break a code without the

24、code book.B.In any language,some letters are used more than others.C.Only people who know the keyword can read the message.D.As long as there have been codes,people have tried to break them.E.You can hide a message by having the first letters of each word spell it out.F.With a code book, ,you might

25、write down words that would stand for other words.G.Another way to hide a message is to use symbols to stand for specific letters of the alphabet. 牛刀小试3答案解析 (2017全国全国,片段,片段)39.(F.After the trip,my family became quite interested in camping.) We have done a lot of it since.Recently,we bought a twenty-

26、eight-foot travel trailer complete with a bathroom and a built-in TV set.There is a separate bedroom,a modern kitchen with a refrigerator.The trailer even has matching carpet and curtains. 40 It must be true that sooner or later,everyone finds his or her way back to nature.I recommend that you find

27、your way in style.四、代入复读典例4A.This time there was no tent.B.Things are going to be improved.C.The trip they took me on was a rough one.D.I was to learn a lot about camping since then,however.E.I must say that I have certainly come to enjoy camping.F.After the trip,my family became quite interested in

28、 camping.G.There was no shade as the trees were no more than 3 feet tall.答案解析点津点津重重新新阅阅读读相相关关词词句句,重重点点做做没没做做出出的的或或不不确确定定的的题题,此此时时可可将将已已选选出出的的答答案案代代入入原原文文,利利用用排排除除法法。同同时时检检查查核核实实已已选选出出的的答答案案,看看文文章章从从内内容容上上是是否否语语义义连连贯贯合合理理,语语篇篇结结构构上上是是否否通通顺顺、合合乎乎逻逻辑辑,写写作作思思路路是是否否清清晰晰,格格式式及及用用语语是是否否恰恰当当贴贴切切。如如果果所所选选的的答

29、答案案可可以以满满足足上述标准,则表明所选的答案基本正确。上述标准,则表明所选的答案基本正确。 (2016全国全国,片段,片段) There are three main types of cryptography.37.(E.You can hide a message by having the first letters of each word spell it out.) For example,the first letters of “My elephant eats too many eels” spell out the hidden message “Meet me.” 3

30、8 You might represent each letter with a number,for example. Lets number the letters of the alphabet,in order,from 1 to 26.If we substitute a number for each letter,the message “Meet me” would read “13 5 5 20 13 5.”牛刀小试4A.It is very hard to break a code without the code book.B.In any language,some l

31、etters are used more than others.C.Only people who know the keyword can read the message.D.As long as there have been codes,people have tried to break them.E.You can hide a message by having the first letters of each word spell it out.F.With a code book,you might write down words that would stand for other words.G.Another way to hide a message is to use symbols to stand for specific letters of the alphabet. 答案解析

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