Unit4 A visit to the moon:课件一(29张PPT)(人教版必修3)

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1、 1. Who is the first Chinese astronaut to go into space? 2. What was the date when he circled the earth in space? A. November 15, 2003 B. October 15, 2003 C. September 17, 2004 D. December 17,2004 3. Which country first sent people up to space? 4. So far, how many countries have succeeded in sending

2、 people up to space? 5. Who is the first man landing on the moon?Yang LiweiAThe Soviet UnionThreeArmstrong (America, 1969)AVISITTOTHEAVISITTOTHEMOONMOONrocket1. Who had a chance to travel to the moon?2.How did they travel to the moon?3.Was there anything changed on their journey?Questions 4. How man

3、y times would the force of gravity change on their journey? When? Which change would be the most powerful? What about his weight?Questions On the moonThe change of gravityIn spaceVery strongDisappeared Very light Leave the earthOntheearthInspaceOnthemoonTheweightchangedHebecameveryheavy.Hehadnoweigh

4、tandcouldfloatweightlesslyaroundintheirspaceship.Hewasaboutone-sixthofhisweightontheearth.Readthepassageandfillintheform.5. what happened to him when he tried to step forward?6. why was returning to the earth very frightening?7. How did he feel?Questions LastmonthIvisitedthemoonwithmyfriend.Beforewe

5、left,Iwastoldtheforceofg_wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_.Graduallytheweightl_.WhenIwasinspace,itd_.Wef_weightlesslyinthecabinandIc_.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen_gravitychanged.Thereturningoftheearthwasveryf_.We

6、wereamazedtowatchfireb_ontheoutsideoftheship.gravityheavylesseneddisappearedfloatedcheeredupnowthatfrighteningbreakoutFill in the blanksDiscussion?Discussion?If you want to visit the moon, what things you must prepare and what kinds of qualities you should have? 1.LastmonthIwasluckyenoughtohaveachan

7、cetomakeatripintospacewithmyfriendLiYanping,anastronomer.上个月我有幸得到一个机会同我的朋友,上个月我有幸得到一个机会同我的朋友,一位宇航员李彦平一道去太空旅行。一位宇航员李彦平一道去太空旅行。Languagepointsenough的用法的用法:1)形容词作定语:)形容词作定语:enough用在名词前、后都可以。用在名词前、后都可以。Ihaveenoughtimetodothework./Ihavetimeenoughtodothework.我有足够的时间做此项工作。我有足够的时间做此项工作。2)用作副词修饰形容词或副词表示程度)用作副

8、词修饰形容词或副词表示程度:enough一般放在形容词或副词一般放在形容词或副词的后边。的后边。longenough,fastenough,quicklyenough等。等。但一般不说:但一般不说:enoughlong,enoughfast,enoughquickly.Theboyisoldenoughtogotoschool.这孩子到上学的年龄了。这孩子到上学的年龄了。3)用作副词修饰动词时也需放在动词之后。)用作副词修饰动词时也需放在动词之后。Themeatisnotcookedenough.肉炖得不够熟。肉炖得不够熟。IfIhad_(足够长的假期足够长的假期),IdvisitEurope

9、,stoppingatallthesmallinterestingplaces.alongenoughholiday2.Thenwewereoff.随后我们就启程了。随后我们就启程了。beoff=setoff出发;动身出发;动身Iamofftoday.我今天不用上班。我今天不用上班。Weareofftoday.今天我们不上班今天我们不上班/今天我们不开张。今天我们不开张。与与off相关的短语相关的短语:see.off送行送行jumpoff跳下跳下giveoff散发散发showoff炫耀炫耀getoff下车下车takeoff脱下脱下turnoff关闭关闭payoff付清;还清付清;还清3.Whe

10、nwegetclosertothemoon,weshallfeelitsgravitypullingusbutitwillnotbeasstrongapullastheearths.当我们更接近月当我们更接近月球时,就会感到月球的引力在拉我们。但球时,就会感到月球的引力在拉我们。但是,月球的引力不像地球的引力那么大。是,月球的引力不像地球的引力那么大。getcloseto靠近,接近,指动态变化靠近,接近,指动态变化becloseto距距.近,指状态近,指状态Theschoolisclosetothepostoffice.4.cheer up : 欢呼,喝彩,感到高兴,欢呼,喝彩,感到高兴, 使

11、高兴。使高兴。当看到球队的到来,人群欢呼起来。当看到球队的到来,人群欢呼起来。_ when they saw the team arrive.他带她去听音乐会来使她高兴。他带她去听音乐会来使她高兴。He took her _ to _.The crowd cheered upto the concertcheer her up1).“A+be+倍数倍数+as+形容词原级形容词原级+as+B”.Thistreeisthreetimesastallasthatone.Hisfatheristwiceasoldashe.5.ButwhenItriedtostepforwardIfoundIwasca

12、rriedtwiceasfarasontheearthandfellover. 2).“A+be+倍数倍数+形容词比较级形容词比较级+than+B”TheYangtzeRiverisalmosttwicelongerthanthePearlRiver.长江差不多比珠江长两倍。长江差不多比珠江长两倍。Thenumberofstudentsinourschoolisthreetimeslargerthanthatintheirs.我们学校的学生数量比他们学校的多三倍。我们学校的学生数量比他们学校的多三倍。3).“A+be+倍数倍数+the+名词名词(size,length,amount)+of+B

13、”Thenewlybroadenedsquareisfourtimesthesizeofthepreviousone.新扩建的广场是未扩建时的四倍大。新扩建的广场是未扩建时的四倍大。经过实验,这种细胞已经变得有那种细胞的三倍大了经过实验,这种细胞已经变得有那种细胞的三倍大了1.Aftertheexperiment,thiscellhasbecomethreetimesaslargeasthatone.2.Aftertheexperiment,thiscellhasbecometwicelargerthanthatone.3.Aftertheexperiment,thiscellhasbecom

14、ethreetimesthesizeofthatone.6.“walkingdoesneedabitofpracticenowthatgravityhaschanged.”.既然引力改变了,走路也的确需要既然引力改变了,走路也的确需要练一练了。练一练了。nowthat同同since相似,语气较弱,强相似,语气较弱,强调人们已知的事实。调人们已知的事实。Translation:1.既然你忙既然你忙,就让我给你做吧。就让我给你做吧。Nowthatyouarebusy,letmedoitforyou.2.既然人都齐了既然人都齐了,咱们开始干吧。咱们开始干吧。Nowthateveryoneishere

15、,letsstartwork7.We watched, amazed as fire broke out on the outside of the spaceship as the earths gravity increased.amazed 是过去分词,此处做状语用是过去分词,此处做状语用 他进来的时候没有人注意到他进来的时候没有人注意到.He came in _ .break out (战争战争,争吵争吵,疾病等疾病等)爆发爆发unnoticed它与它与happen,takeplace,comeout等词的用法一样,等词的用法一样,是不及物动词,不能带宾语,不能用于被动语态。是不及物动

16、词,不能带宾语,不能用于被动语态。1)战争爆发战争爆发TheAmericanCivilWarbrokeoutin1861.美国内战爆发于美国内战爆发于1861年。年。2)发生争吵发生争吵Aquarrelbrokeoutbetweenthem.他们之间发生了争吵。他们之间发生了争吵。3)(火灾火灾)发生发生Afirebrokeoutinhishouselastnight.昨晚他家里失火了。昨晚他家里失火了。与与break相关的短语相关的短语:breakdown打破打破;毁掉毁掉;破除破除;坍塌坍塌;坏掉坏掉breakin破门而入破门而入;打断打断breakawayfrom脱离政党脱离政党;打破陈

17、规打破陈规breakthrough突围突围;突破突破breakup打碎打碎;拆散拆散;分裂分裂;分解分解breakonesword/promise食言食言;说话不算数说话不算数translation1太阳系太阳系 _2及时,总有一天及时,总有一天 _3阻止,制止阻止,制止 _ 4依靠,信赖依靠,信赖 _5感到高兴感到高兴 _ 6既然,由于既然,由于 _7蔓延蔓延 _ 8一般而言一般而言 _9除了除了-之外还之外还 _ 10. 作一次太空旅行作一次太空旅行_solar systemin timeprevent fromdepend oncheer upnow thatspreadgenerall

18、y speakingas well asmake a trip into space11熟悉,掌握熟悉,掌握 _ 12突发,爆发突发,爆发 _13增多,使繁殖增多,使繁殖 _ 14大气层,气氛大气层,气氛 _15随着时间的流逝随着时间的流逝_ 16与与不同不同 _17冷却冷却 _ 18失重地失重地 _19全球变暖全球变暖 _ 20地心引力地心引力 _get the hang ofbreak outmultiplyatmosphereAs time went/goes bybe different fromcool downweightlesslyglobal warminggravity21产

19、卵产卵_ 22在表面上在表面上_23两倍远两倍远_ 24非常幸运非常幸运_25向某人解释向某人解释_ 26靠近,接近靠近,接近_27出发,动身出发,动身_ 28促进促进-的发展的发展_29从他们的体内从他们的体内_ 30做某事的方法做某事的方法_lay eggson its surfacetwice as far aslucky enoughexplain to sbget close tobe offencourage the development of-from within their bodymethods of doing sthHomework Collectpassagesaboutgravity.Prepareforspeaking.同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全

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