必修三 Unit 4单元练习题含答案

必3UnitAstronomy:thestars单元习第一部分：基础练习I词汇．选词填空并用适的形式：prevent,disappoint,float,publish,solid,astronomyfivecityrapidlyindirections.Thathefailedtheexamination_______hisparentsThey＿＿＿＿canoeintothemiddleriver.writer________lotofinthat_____________________ofgravitymakesearth.andintooldhouse.separatethetwo,becausehavefoundation.WorldII,twoinaof9.the______ourcountryeconomy,people'slivingstandardgreatlyraised.10.Moreoftheearth’s_____coveredbywater.．词组识记．依靠；取决于．既然，由于．摔跤．向某人解释某事．随着时间的推移．盼．导．屏呼吸．作次太空之旅．爆

…studysubjectscientificallybeginningmakeitforlife10.doingsth12.onlynaturalsatelliteofearth14.riseslowlyintoair16.18.about20.theofit.II．语．用适当的连词填：Theylostintheforest___begantofall.__________hashelpedthegirlispraising.ItwillhavechancetoabroadnextLiweiateinspaceis_________theworriedhimlot.Iaboutitinsomebookdoesitmatter_________itwas.__________ofyouthecorrectlywillgiven_________didn'tisunknown.willgohasn'tdecidedyet.10.willbesenttothemisvery根中文提示翻译下列句子：1.________________________________________（空旅行所需的isItwillsoonbeannounced（谁获得第一名）3.______________________________________________________（利伟从太空中安然着陆地球）madeallexitedandItis（他什么时候入党的）5._________________________________________________（宇航员在太空中如何吃

饭、睡觉和行走）isverystrangeand6.__________________________________________（球与其它行星在哪方面不同）ismostinterestedin.Itremainssecret__________________________（他为什么突变卦.何时战争才会从世上消失)to(最令人满意的是______________________________wasfinishedtheworkintime.10.（怎样提高我们的学成绩isareconcernedIII．单项填空fightingbetweenthepeoplekilled.brokeoutB.wasoutoutbeenOlympicsinBeijingin______aencouragementallChinese.whereB.thatD.thatmomentthecatmiceitfromB.making,behindC.fromD.making,frombehindfardothey---_________Iknow,liveintheneighbourhood.AsasAsC.wellasD.AssoonItwasaoftakeB.C.whomwhomever.notseizeit_______you’vegotgoodchance?C.whereparentswere______at______newstheexamdisappointingdisappointed,disappointedC.disappointingdisappointed____heinteresteverythinggardening.WhenAsC.WhileD.otherday,mydowntheIthoughtwasaaswhichC.what10.resultofexperimentwasverygood,_______wehadnexpected.whenC.11._____thewheretheywere______.layingB.lyingC.lyingD.Lie,12.HeatwhenItohelphim.upB.C.D.up13.audiencetheir_____totheintimeB.attime14.isa_______MrLiforcalledcallingD.call15.He_____hisdeskthen____fromhisraisedB.raised,D.raised,第二部分：综合练习I完形填空Thereinknownasthemanwhothepresident.The_1_place

manofficer_2_Street.OnePresident,whohadbeenapartyoffriends,homemeetengagement.The,withitswasdownsofastthatpoliceman__5_thedriverstop.The_6__himaskedwasthe_7__.’tyouyouaredrivingabouttimesfastthelaw_8_?saidtheofficer.“Yes,thepresident.“IsupposeIwas_9_youspeakofit.“Well,then,may_10_yourselfunderarrestandgowithmethestationhouse.Theremarks_11_ofthe_12_whomwasminister,thepresident“The_13_right.andaskedpolicemanto_14_himselfbehindhim.policemanasoftvoice,Ithoughtyou_16_knowthatitPresident.”officerwasvery_17_andlethim_18_thepresidentwouldnoneofit.theystation,captainturned_19_.Apologiesmade,thepayingproperfine.A.accidentBaccountD.ABstationedCkeptwatchD.AwalkingBrunningDA.BDABhopedDABacceptedD7.AmatterBthingaffairDbusinessABforbidsCtellsDallowsAthoughBunlesswhileDsince10.ABguessCtreat11.ABdriversCofficersD12.AwithBinDratherBhardlyCrarelyD14.AtoBtositCD15.AFortunatelyBHappilyCSuddenlyD16.AcouldBmustDmayAexcitedBCmovedD18.ABbutandDwhiteBgreenCDyellow20.ABaskedrequiredDII．阅理解ADamagetoOzoneInthemiddleofwinter,snowisfallinghavesoundedawarningpeoplewhotospendmanyhoursthesunthissummer.ThewarningThesun’ssumraysmorethanonceAteamrecentlytolayerofozone臭氧层inthewhichprotectsharmful（紫外线）willthesummer.ThemoreultravioletfromsunreachEarth.extraamountultravioletcouldaninofskinfirstconcernedlayertheaholediscoveredinthelayerAntarcticaholewascausedchemicalsusedrefrigerators

chemicalssentatmosphere,theyozone.abouttherecentlywhen数)fromsatellitesandstationsweredroppingthanLowlevelsinsummerovertheUnitedandotherpopulatedincountrieshavestoppinguseofozonefindingsaretothetimetableforatotalban(止)ofthehavetheozonelayer_____.since1980sincewinterCfor20foraboutlayerthecandolotofgoodtoinmanyprotectbyC.lotofharmhumanbeingsinharmfulofradiation.Scientistsfirstfoundthatthereinlayer_____.aboveArcticduringtheinthetheintheC.inthenorthequatorintheinmid-1980sdamagelayercausedchangeableozone-destroyingchemicalsC.chemicalsfromchemicalsairconditionersBEarlyinthemorningofJuneandMorgensternwatchingfield.Althoughtheycouldnothingthroughthethicktheirrunning.By6a.m.foglift.Aofhadbeenflattened.主)bentnotbroken.wheatwasMuddythoughfieldtherefootprintsormarks.seemedtohavecomefromnowhere.“canexplainall,”MikeCarriersaidtowitheyesopen.Carriernotalone1980s,than2000circleshaveappearedinfarmerfields.MostnightMayAugust.Somebelievethecirclesarecausedbydeerotheranimals.OthersthinkofUFOs.“Thecirclesaremessagesgiventhosewhocomefromouterspace,saysMichaelGreen.“Perhapsaretryingtotouchus.”Pathasdoneresearchcropcirclessince1981.Hebelievesthattheyarecaused“someformofearthenergy.MostscientiststhatnoscientificbasisorSomeofthemsay,“Wetheynothing骗)”InSeptember1991,andChorleysincemadecirclesthroughoutsouthernfoolpeoplewhobelievedinSinceearly1980s,Dr.visitedcircles.Nowhavethebelievestruecropcirclesvortex(旋风whichcantheincircularpatterns.NowarefoundineachAretheyreallytheUFOs?June29,1991,CarrierandMorgensernhoped

theB.C.findanatureD.funnysawcropcircle,Mikewas________.B.frightenedsurprisedDconsiderthatofare_________.AmeaningfulB.CinstructivethelawsofscienceknowallcomeouternothingbutC.notDexplainedCThetothefirststepfuture探)inspace.ThedistancetheMoonEarthveryshortwhenwiththedistancesbetweenEarthandotherMars,nearestplanettoEarthmillionsofaway.Travelingtheplanetswillbeman’snextaim.willmoretriptothemoreadventurous.Recently,spaceships,1and2,landedonMarstodiscoverthatplanethasanylifeit.SofarsignsoflifeMars确)ruledout.RussianssurfaceVenus(金星sohotthatitisalmostcertaintherenolifeAlsoofisextremelydense(稠pressureisathanthatEarth’findsameconditionsasthosehaveEarthbutrealizeEarthwillhisonlylongtimebeginloveandcareit.passage,travelingwill________.andmoreanddangerousC.man’sD.man’sfirststep10.followingNotnearerearthmoon.toearththanC.Ofalltheplanets,Marsnearestearth.Alltheplanetsaremuchtothe11.Fromthepassage,MarsB.MarsC.theatmosphereofissoofwillfindthe12.Mancanliveconditionsof_______.AmuchtoosurfaceB.sameaswegetonearthC.atmospherehaveonBandDwespendspotandpreventasteroids(小行星onecrashintolifeknowitsaysomescientists.Asteroidsofmeteoroids(流星)thatracethesky.orbittheEarthand’tthreatenus.ButthereareofwhoseorbitsputacollisioncoursewithBuy$50million$10fornext

tolocatemostofthespacerocks.Bywespotafatalone,thescientistssaywe’llhavewaytochangeitscourse.Somescientistsfavorpushingasteroidsoffcoursewithnuclearweapons.Butthecostwouldn’tcheap.Isitworthit?expertsconsiderwhenjudginganyare:Howthe2)Howiftheoccurs.thinkasteroidbigenoughdestroyoflifemighteveryprettyrare-butifdiditwouldbetheendoftheworld.“Ifwedon’ttakethesebigasteroids,they’llcareofus,saysonescientist.“It’sthatsimple.”ThethoughmightDoreallywantfleetsofweaponssittingonThefearfromdoomsday(灭性的)rocksagreatfleetagainst”NewYorkTimesarticle.13.Whatdoesthesayaboutasteroids_________.aredifferentincompositionTheyheavenlysimilarinnatureC.Thesearemoreasteroidsthanmeteoroidsmoremysteriousthanmeteoroids14.WhataboutofanasteroidwithEarth?AItisunlikelybutdangerSuchacollisionmight25C.CollisionsmallerasteroidsEarthmoreoftenexpectedD.It’stooearlytowhethersuchcollisionmight15.Whatpeoplesuggestionofusingnuclearweaponstheofasteroids?ItpracticalbutitmaynotsolveproblemItmaymorethanitmightC.ItismoneybecauseacollisionofwithEarthisveryunlikelyFurthershoulddoneitisproved16.canthethat________.whileasteroidsoffcoursenuclearweaponsworldasteroidsacrossnightskyarehitEarthinthefutureC.theworryasteroidscanlefttogenerationssinceitinourlifetimesolutionsstilltobefoundtopreventaasteroidswithIII单句改错Measurestakentostoppolluting.gardenerexplainedustheaintoaudienceexplodedlaughterlisteningtothecrosstalk.strengthofallinAcauseddamageluckyenoughtoescapefromfired.text,weknowmanymoregravity.animalsproduceyoungbodies.seemsthathehasinforseveralyears.10.haveforaperiodIV句子翻译．当SARS爆时，突然的恐惧迅速地弥漫全国(break

只更努力，你终久会成功(intime)．他们尽力使那些遇地震不幸的人们高兴起来(cheerup)．我们应该想办法止有害气体的蔓延…from)．她发现河面上有怪的东西浮着，这使她感到非常害怕．运动员没有听从练员的指令，结果使他打赢比赛的计划落空。）．随后它会变成什么曾经是一个迷,直到最后这团尘埃开始慢慢地合一个环绕太阳运转的球状物。（）．在未来的千百万生能否在地球上延续将取决于这个问题能否得到解决。．有些奇怪的动物生蛋，但又给它的幼崽喂奶(layeggs)．当他们有害的动物消失时，哺乳动物便快速繁殖(multiply)必修Unit4the答案第一部分：基础练习I词汇．选词填空spread3.4.published,5.force7.solidexploded9.development10.surface．词组识记on2.把……当／看作that科地研究这门学科over6.生命的起源sthto8.使生命有可能进化withtime