2024八年级英语下册Module3JourneytospaceUnit2Wehavenotfoundlifeonanyotherplanetsyet第二课时作业课件新版外研版

Unit2第二课时一、根据句意及汉语或首字母提示写单词。1．Weshouldtryourbesttomakeour________________(环境)muchcleaner.2．Ithinkthereissomethingwrongwiththecomputer__________(系统).3．Howmanystarsarethereintheu_________?4．MoreandmorepeopleuseWeChattoc________________witheachother.5．Tobyr_________aphonecallfromhisfatherandthenleft.environmentsystemniverseommunicateeceived二、单项选择。(

)6.Istherelife______thereinspace?A．outsideB．inC．outD．inside(

)7.Theroomisabitdark.Itdoesn'tgetmuch______．A．airB．lightC．windD．noise(

)8.It'simpossibleforme______suchgreatsuccesswithoutMrGreen'shelp.A．getB．gotC．gettingD．togetCBD(

)9.IwonderhowtheChineseteam______thesummit(山顶)ofMountQomolangmathisyear.A．arrivedB．cameC．reachedD．got(

)10.—HavescientistsfoundlifeonMars?—Notyet，butIthinkthey______itsomeday.A．findB．foundC．havefoundD．willfindCD三、完形填空。Venus(金星)isournearestneighbourin

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.Itisonly42，000millionmetresaway.We

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thatinsomewaysVenusissimilar(相似的)totheearth.Venus，liketheearth，goesaroundthe

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.Itisalmostasbigastheearthtoo.Inotherways，thetwo

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areverydifferent.Venusliesunderverythickcloudsofdust(灰尘).Thecloudsholdthe

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heatunderthem.Insomeplaces，the

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goesupto280℃.Earthpeoplecan'tlive

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air，butourneighbourplanetdoesnothavethiskindofair.Thereisvery

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wateronVenus.Still，somescientistsbelievetheremaybe

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onthisplanet.Thesescientiststhinkthatsomemicrobes(微生物)maybeabletoliveonVenus.Theyarenotsureaboutthis,

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onethingisforsure，earthpeoplecouldnotliveonVenus.(

)11.A.theworldB．theskies

C．thecloudsD．space(

)12.A.reachB．knowC．dreamD．try(

)13.A.moonB．stars

C．sunD．spaceship(

)14.A.projectsB．models

C．lightsD．planets(

)15.A.highB．lowC．tallD．short(

)16.A.heatB．air

C．temperatureD．water(

)17.A.withB．without

C．againstD．near(

)18.A.fewB．afewC．littleD．alittle(

)19.A.peopleB．lifeC．foodD．air(

)20.A.sinceB．though

C．butD．becauseDBCDACBCBC四、还原型阅读。根据短文内容，从文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。Canyouimagineastronauts'everydaylifeinspace？Theyalsoneedtoeat，sleep，exerciseandrelax.21._________Ontheearth，weputfoodonaplate.22._________Butthereisalmostnogravityinspace，sofoodcanfloat(漂浮)away，andastronautsmusteatcarefully.Sleepingisverydifferentinspace.Someastronautsliketofloatintheair，butmostliketobeinasleepingbag.23.___________CEDExerciseisveryimportantinspace.Ontheearth，yourlegscarryyourbody，butinspace，astronautsfloat，sotheydonotusetheirlegsoften.24.____________Afteraday'swork，astronautsrelax.Theymaylistentomusic，read，watchfilms，playgames，ortalktotheirfriendsandfamiliesontheradio.25.________BFA．Astronautcan'trelaxinspace.B．Sometimestheyjustenjoyfloatingintheair.C．Theytiethebagtoawallsothattheywon'tfloatawayatnight.D．Theydothesamethingsasus，buttheydothemdifferently.E．Gravity(重力)holdsthefooddownandkeepsitonaplate.F．Thisisverybadfortheirlegs，sotheymustexerciseforthirtyminuteseveryday.单元课时知识点睛►millionsof数以百万计的，表示概数。million前面加基数词时表示具体的数量，此时不与of连用，且无论数量多大，million都用单数形式。eg：Hehasfivemilliondollars.MillionsofforeignvisitorstakeatriptoBeijingeveryyear.【拓展】类似用法的词还有hundred，thousand，billion等。►Itisimpossibletoimagine.impossible形容词，意为“不可能的；(事情)办不到的”，其反义词为possible。eg：Nothingisimpossible.►However，nospaceshiphastravelledfarenoughtoreachotherstarsinourGalaxy.(1)【辨析】however与but二者都译为“但是”，表示转折。however副词，常位于句首，其后用逗号隔开；but连词，用于连接两个并列的分句。(2)“adj./adv.＋enough＋todosth.”意为“足够……可以做某事”，其否定形式为“not＋adj./adv.＋enough＋todosth.”，意为“不够……不可以做某事”。eg：Heisstrongenoughtocarrythebigbox.【拓展】enough作形容词修饰名词时，可以放在名词前，也可以放在名词后；enough作副词修饰形容词、副词或动词时，要放在所修饰的词之后。►【辨析】none与noone(1)none①既可指人，也可指物。②可单独使用，也