必修3 unit4复习课件

Book3Unit4Astronomy：thescienceofthestars1._______n.卫星2._______n.气候3.___________n.宇宙飞船4.________n.引力；重力5.____________n.气氛；大气层6._________n.宗教→__________adj.宗教的7.________n.生物→__________n.生物学家satelliteclimatespaceshipgravityatmospherereligionreligiousbiologybiologist重点单词8._________n.球体；地球仪；地球9.______________n.大气层；气氛10.__________v.乘；增加11.________v.碰撞；坠落12._______vt.&n.拉(力)；拖；牵13._________v.(使)浮动n.漂浮物14._________adj.温和的；文雅的15._________adv.因此；于是16._________n.氧pull

globeatmospheremultiplycrashfloatgentlethusoxygenⅠ.单词荟萃1．___________n．天文学→____________n．天文学家2．________n．生物学→________n．生物学家→_____________adj.生物学的3.________n．物理学家→________adj.物理学的→________n．物理，物理学→___________n．内科医生4.________vi.存在→________n．存在5．________vt.使……迷惑→________n．难题；谜→________adj.迷惑不解的→____________adj.令人困惑的astronomyastronomerbiologybiologistphysicistphysicalphysicsexistexistencepuzzlepuzzlepuzzledbiologicalpuzzlingphysician6.________adj.猛烈的→________n．暴力→________adv.猛烈地7.________adj.有害的→_________adj.无害的________n．害处→________vt.对……有害8.________adj.全世界的；全球性的→________n．球体；地球仪9.________prep.不像；和……不同→________(反义词)prep.→________v.&n．不喜欢10.________n．质量；团；块；大量→________(pl.)群众11.____n.&vt.拉；拖→(反义词)______n.&vt.推violentviolenceviolentlyharmfulharmlessharmglobalglobelikedislike

massunlikemassesharmpullpush12.______adv.因此；于是→(同义词)______________________________13._______n.系统；体系；制度→___________adj.系统的；有系统的14._______n.理论；学说→___________adj.理论上的；理论的→_________adv.理论上15._____________adj.基本的；基础的→_______________adv.根本上；从根本上→_______________n.基础；根本16._______vt.使筋疲力尽__________adj.使人精疲力竭的→__________adj.精疲力竭的thustherefore/consequently/hencesystemsystematictheorytheoreticaltheoreticallyfundamentalfundamentallyfoundationexhaustexhaustingexhausted1.及时________2.下蛋__________3.生；分娩_______________4.轮到某人；接着_______________5.阻止某人做某事________________________6.挡住_______________7.感到高兴；振作_______________intimelayeggsgivebirthtoinone’sturnpreventsb.fromdoingsth.blockoutcheerup重点短语8.既然__________9.爆发___________10.密切注视；当心；提防______________11.熟悉；掌握；理解_______________12.对……有害______________________13.太阳系_______________14.二氧化碳________________nowthatbreakoutwatchout(for)getthehangofbeharmfulto/doharmtosolarsystemcarbondioxide15.将要做___________16.允许某人做某事___________________17.对……感到惊讶_____________18.在……的氛围中___________________19.奠定基础___________________20.一连串的___________betodoallowsb.todosth.beamazedatintheatmosphereoflaythefoundationachainofPlayingcomputergamesforalongtimeisvery_________(harm)toourhealth.2.Theiruntruecomments__________(violence)hurtthefeelingofChinesepeople.3.Hisanswertothequestionsounds_________(puzzle)andweareall_________(puzzle)alot.4.____________asshewas，therewasnohopeofherbeingabletosleep.(exhaust)三、用所给单词的适当形式填空

harmfulviolently

puzzlingpuzzledExhausted

4.AsfarasIamconcerned,strongwill,diligence,anddevotionaswellasperseverancearefour__________(fundament)factorscontributingtosuccess.5.Fewpeopleunderstandthatthe_________(exist)ofrareanimalsiscloselyrelatedtoourlife.作从句的主语

fundamental

existence作定语用形容词1.Accordingtothesurvey,mostgirlsarenotasinterestedinbasketballasboysare.根据调查,大部分女生不像男生一样对篮球感兴趣。2.Thereisnodenyingthefactthatmobilephonesbringgreatconveniencetoourlife,buttheirradiationmaybeharmfultoourhealth.不容否认手机给我们的生活带来极大的便利，但是它们的辐射可能对我们的健康有害。3.AsfarasIamconcerned,thegovernmentissupposedtotakeeffectivemeasurestopreventthehazefromgettingworse.依我看，政府理应采取有效措施防止雾霾(haze)变得越来越糟糕4.Whethertheglobalwarmingwillbecomemoreseriousdependsonwhetherouractivitieswillproducemorecarbondioxide.地球变暖是否加剧取决于我们的活动是否产生更多的二氧化碳。四、朗读下列例句，并抄写进作业本里面第二节考点复习1.____wasnotimmediatelyobviousthatwaterwastobefundamental___thedevelopmentoflife.水会对生命的发展起关键作用，这一点在当时并不太明显。2.Whatitwas__________(become)wasuncertain______between4.5and3.8billionyearsago_______thedustsettledintoasolidglobe.它会变成什么还没有人知道，直到38亿~45亿年前，这团尘埃才慢慢地形成一个固体的球体。Itto课文优美句子tobecomeuntilwhen3.Whatiseven______________(important)isthatastheearthcooleddown,waterbegantoappearon______surface.更为重要的是，地球冷却了下来，地球的表面就开始出现了水。4.So________lifewillcontinueontheearthformillionsofyears________(come)willdependonwhetherthisproblemcan__________(solve).所以，在未来的数百万年中，生命能否在地球上延续取决于这个问题能否得到解决。

moreimportantitswhethertocomebesolved5.Icheeredupimmediatelyand______(float)weightlesslyaroundinourspaceshipcabin_________(watch)theearthbecomesmallerandthemoon_______(large).我立刻感到很高兴，由于失重，我在太空舱里飘来飘去，我望着(身后的)地球越来越小，而(前方的)月球越来越大。floatedwatchinglarger原句:Theylaideggstooandexisted

ontheearthformorethan140millionyears.恐龙也会下蛋,而且在地球上存活了超过1.4亿年。(B3P26)1.existvi.

存在,生存,生活,继续存在existin存在于……中existon=liveon靠…生活existas作为……而存在,⑶Wecan’texistwithoutwater.Thatmeansour________(exist)dependsonwater.运用⑴Thelittleboycannotexist___themoneyheisearning.⑵Mattercanexist___asolid,liquidorgas.onas

existence原句:Howlifebeganonearthisoneofthebiggest

puzzles

thatscientistsfoundhardtosolve.生命是如何起源的这个问题是科学家很难解答的最大困惑之一。(B3P27)2.puzzlen.

谜;难题v.(使)迷惑;(使)为难例句:Howhepassedtheexamisstillapuzzle

tous.他如何通过考试的对我们来说还是一个谜。bepuzzledby被……迷惑beapuzzletosb.对某人来说是个谜/困惑be/feelpuzzledabout对……感到困惑运用填入一个恰当的词或完成句子。⑴Yourexplanationwasreallyapuzzle___me.⑵Hisrecentbehavior_________(使我困惑).

to

puzzlesme

原句:Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheat

fromescapingfromtheearthintospace.他们把过多的二氧化碳释放到大气层中,这使得地球上的热不能释放到太空中去。(B3P26)3.prevent/stop/keep...from

阻止/防止……做/发生……运用根据汉语提示完成句子。⑴上涨的河水使我们过不了河。Therisingwater__________________________________.⑵人们采取行动来防止了环境的恶化。Peopletookmeasures__________________________________________.preventedusfromcrossingtherivertopreventtheenvironmentfromgettingworse原句:Walkingdoesneedabitofpracticenowthatgravityhaschanged.重力改变了,看来走路也的确需要练一练了。(B3P31)4.nowthat

由于;既然例句:Nowthat

youareastudent,youmustobeyschoolrules.既然你是学生,你必须遵守学校的规则。运用根据汉语意思完成英文句子。⑴既然大家都来了,我们就开会吧。_________