()人教版必修三unit4Usinglanguage.ppt

Unit 4Astronomy:the science of the starsUsinglanguageReadingAVISITTOTHEMOONspacewalk Whatcountryfirstsentpeopleintospace?Howmanycountrieshavesucceededinsendingpeopleintospacesofar?Whofirstlandedonthemoon?Themoonisourclosecosmic(宇宙的宇宙的)neighbor,andhumanshavebeenexploringitssurfaceeversincetheyfirstdevelopedtelescopes.ThefirstpersonthatsteppedontothemoonNeilArmstrongNeilArmstrongwasborninOhioin1930.HewasapilotintheU.S.AirForcebeforeheenteredthespaceprogram.InJulyof1969,hecommandedtheApollo11andlandedonthemoon.Hemadehistorybywalkingonthemoonfirstly.PhotosaboutthemoonspacecapsuleTodayIndia,China,andJapanallhavelunarexplorationprojectsindevelopment.TheUnitedStatesownplanisperhapsthemostambitioustoreturnhumanstothemoonby2020andeventuallyusethemoonasastagingpointforhumanflighttoMarsandbeyond.Chinasentirelunarexplorationprojectisdividedintothethreestepsoforbiting,landing,andreturning.TheChange-1satellite,Chinasfirstlunarprobesatellite,waslaunchedonOct.24,2007.Chinas first astronaut-Yang LiweiReadthe4paragraphsquickly,andfindoutthetopicofeachparagraph.Para 1:Para 2:Para 3:Para 4:Lastmonthwevisitedthemoon.Howtheforceofgravitychangedwhenwetraveledfromtheearthtothemoon.ThethingsIdidonthemoon.Wereturnedtotheearth.1.Thepassageismainlyabout_?A.introductionofthemoonB.thegravitythatIfeltonmywaytothemoonC.myvisittothemoonD.myfriendYanping,anastronomerRead the text carefully and choose the best answer.C2.Accordingtothetext,weknowthattheforceofthegravitywouldchange_times.A.2B.3C.4D.53.Whendidtheauthorfeelstrongestofthegravityoftheearth?A.Onthemoon.B.Onthehalfwaytothemoon.C.AttheverybeginningD.OntheirleavingfromthemoonCB4.Whatcausesthewritertofeelthathebecomesweightlessonthemoon?A.SpaceshipB.GravityC.HisfriendD.HisGoodfeelingsofthemoonBReadthepassagecarefullyandthendescribethethreewaysinwhichgravitychangedforLiYanpingandhowhisweightchanged.1.The pull of gravity became very strong 2.as he left the earths atmosphere.His weight is normal.2.It disappeared when he was in space.He is weightless.1.3.It was very light when he was on the moon.2.He weighs less than on earth.ThewaygravitychangedLefttheearthInspaceOnthemoonItbecameverylight.Thegravitybecameverystrong.Thegravitydisappeared.TheweightchangedLefttheearthInspaceOnthemoonHebecameveryheavy.Hehadnoweightandcouldfloataroundlikeafeather.Hewasaboutone-sixthofhisweightontheearth.LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_.Graduallytheweightl_.WhenIwasinspace,itd_.Wef_weightlesslyinthecabinandIc_.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen_gravitychanged.Thereturningoftheearthwasveryf_.Wewereamazedtowatchfireb_ontheoutsideoftheship.gravityheavylesseneddisappearedfloatedcheeredupnowthatfrighteningbreakoutRetell the text.getcloseto靠近靠近,接近接近,指动态变化指动态变化becloseto距距近近,指状态指状态Theschoolisclosetothepostoffice.1.Whenwegetclosertothemoon,weshallfeelitsgravitypullingusbutitwillnotbeasstrongapullastheearths当我们更接近月球时当我们更接近月球时,就会感到月球的引力就会感到月球的引力在拉我们。但是在拉我们。但是,月球的引力不像地球的月球的引力不像地球的引力那么大。引力那么大。与与get相关的短语相关的短语:getalong相处融洽相处融洽,进展等进展等getdownto开始认真对待开始认真对待,开始认真考虑开始认真考虑geton上车上车getthrough到达到达;通过通过;办完办完,花光花光(钱、时间等钱、时间等)。getto到达到达getdownto;geton;getthrough;getto;getover;getup1.Donttalktoomuch.Lets_working.2.Hurryup,orwellbelateto_thebus.3.Itseasyto_thedifficulty.4.Ihave_alotofpapers.5.Shemanagedto_thevillage.getdowntogetongetovergotthroughgetto2.cheerup:欢呼欢呼,喝彩喝彩,感到高兴感到高兴,使高兴使高兴当看到球队的到来当看到球队的到来,人群欢呼起来。人群欢呼起来。_whentheysawtheteamarrive.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。Hetookher_to_.Thecrowdcheereduptotheconcertcheerherup3.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.1)“A+be+倍数倍数+as+形容词原级形容词原级+as+B”.Thistreeisthreetimesastallasthatone.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。4.“walkingdoesneedabitofpracticenowthatgravityhaschanged.”既然引力改变了既然引力改变了,走路也的确需要练一练了。走路也的确需要练一练了。nowthat同同since相似相似,语气较弱语气较弱,强调人们强调人们已知的事实。已知的事实。既然你忙既然你忙,就让我给你做吧。就让我给你做吧。Nowthatyouarebusy,letmedoitforyou.既然人都齐了既然人都齐了,咱们开始干吧。咱们开始干吧。Nowthateveryoneishereletsstartwork6.Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearthsgravityincreased.1)watchdo/doing:观看观看,注视注视我们看着太阳正在树后面落下。我们看着太阳正在树后面落下。We_behindthetrees.每一天当他们看到植物生长每一天当他们看到植物生长,他们的心里他们的心里都充满了希望。都充满了希望。Everydayasthey_,theirheartswerefilledwithhope.watchedthesunsettingwatched the plant grow2)amazed是过去分词是过去分词,此处做状语用。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。Hecamein_.3)breakout与与happen,takeplace,comeout等等词的用法一样词的用法一样,是不及物动词是不及物动词,不能带宾语不能带宾语,不能用于被动语态。不能用于被动语态。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。unnoticed发生争吵发生争吵他们之间发生了争吵。他们之间发生了争吵。Aquarrelbrokeoutbetweenthem.(火灾火灾)发生发生昨晚他家里失火了。昨晚他家里失火了。Afirebrokeoutinhishouselastnight.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脱离脱离(政党政党);打破打破(陈规陈规);摆脱摆脱breakthrough突围突围;突破突破;冲垮冲垮;克服克服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考例考例Iwasstillsleepingwhenthefire_,andthenitspreadquickly.(广东广东2006)A.brokeoutB.putoutC.cameoutD.gotout点拨点拨putout扑灭；扑灭；comeout出来出来,出出版；版；getout（使）出来。由（使）出来。由itspreadquickly（火迅速蔓延）可知选（火迅速蔓延）可知选A。I.选用方框内合适的词或短语，并用其选用方框内合适的词或短语，并用其适当形式填空。适当形式填空。(其中有一个多余选项其中有一个多余选项)1.Therewasa_ofpeoplearoundtheclubentrance.2.Yououghttohaveagoodrest_youvefinishedthework.massnowthatfloat;nowthat;mass;getthehangof;watchout;pull3.Shespenttheafternoon_onherbackinthepool.4.Itseemsdifficultatfirst,butyoullsoon_it.5.Youhaveto_becausethereareland-minesallovertheplace.watchoutfloatinggetthehangoffloat;nowthat;mass;getthehangof;watchout;pullII.用适当的介词或副词填空。用适当的介词或副词填空。1.Comeon.Cheer_!Yourenottheonlyonewhofailedinthetest.2.Sincetherearemanyproblemsthatcantbesolved,thewarislikelytobreak_.3.LastSaturday,Iwentonavisit_theGreatWallwithsomeofmyfriends.4.Isthereanythingelseyouwouldlikemetoexplain_you?upouttoto5.Watervaporislighter,otherwiseitwouldnotrise_theair.6.Hisgrandfatherlivesinalonelyvillagewhichisfar_hishouse.7.Theleavesfall_thetreesandblowaboutintheautumnwind.8.Asamatteroffact,Ididntknowhim_all.intofromfrom/offatIII.根据括号内的提示翻译下列句子。根据括号内的提示翻译下列句子。1.老师幽默的讲话让我们很振奋老师幽默的讲话让我们很振奋,之后班之后班里的气氛也轻松起来。里的气氛也轻松起来。(atmosphere;cheerup)Theatmosphereintheclassroomrelaxedaftertheteachershumoroustalkcheeredusup.3.让我们十分失望的是让我们十分失望的是,战争最终在那两战争最终在那两个国家之间爆发了。个国家之间爆发了。(toonesdisappointment;breakout)Nowthatwehavefinishedthedesign,thecompanywilldotheconstructioninitsturn.2.既然我们已经完成了设计既然我们已经完成了设计,就该由公司就该由公司来进行建设了。来进行建设了。(nowthat;inonesturn)Toourgreatdisappointment,awarbrokeoutbetweenthetwocountriesatlast.6.我感觉风从一扇敞开的窗子里正往我感觉风从一扇敞开的窗子里正往我脸上吹。我脸上吹。(feel.doing)5.这个小女孩看见他偷了那本书这个小女孩看见他偷了那本书,这件这件事是真的。（事是真的。（watch.do）Itstruethatthegirlwatchedhimstealthatbook.Ifeltthewindblowingonmyfacefromanopenwindow.Homework1.Afterclass,youshouldlistentothemagainandsumupwhatyouhavelearntfromthem.Thinkaboutonequestion:Whatneedstobeanastronaut?2.Collectpassagesaboutgravity.Prepareforspeaking.