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Unit4Wildlifeprotection同步測(cè)試一、用準(zhǔn)確的介詞或副詞填空Manyoftheanimalshavedied_____________aresult_______theenemiesthatkillandeatthem2.Wildlifeis______danger_______disappearing,whichweshouldbeconcerned_______.3.Therewasanantelope________hiseyesfixed_______her.4.Adogsuddenlycameout_______thebed.5.________now________,weshouldpaymoreattention______wildlifeprotection.二、完形填空Theworldis__1___hungry,itisalsothirstyforwater.Thismayseem___2___toyou,fornearly70percentoftheearth’Ssurface(表面)iscoveredwithwater.Butabout97percentofthishuge__3___isseawater,___4___saltwater.Mancanonlydrinkanduse___5__3percentthefreshwaterthatcomesfromrivers,lakes,underground,andothersources(來(lái)源).Andwecan’tevenuseallof__6___,becausesomeofitisinthe___7___oficebergsandglaciers(冰川).Evenworse,someofithasbeenpolluted(污染).__8___,asthingsstandtoday,thissmallamountofwater,which___9___byrainfall,isstillenoughforUS.Butourneedforwaterisincreasingrapidlyalmost__10___.Onlyifwetakestepscanwesolvethisproblemnow___11___aseriousworldwidewatershortageinthefuture.Oneofthefirststepsweshouldtakeistodevelopwaysof___12___water.Today,inmostlargecities,waterisused___13___andthensentintoasewersystem(下水道系統(tǒng)).Fromthereitgoestotheseaorrunintoundergroundstoragetank(蓄水池).Butitis__14___topipewaterthathasbeenusedtoapurifyingplant(凈化廠).Thereitcanbefiltered(過(guò)濾)andtreatedwithchemicalsSOthatitcanbeusedagain.___15__wayistomakeuseofseawaterbyremoving(去除)thesalt.Thisiscalleddesalinization(脫鹽)anditisalreadyinuseinmanypartsoftheworld.()1.A.eitherB.neitherC.notonlyD.too()2.A.newB.strangeC.excitingD.puzzling()3.A.numberB.dealC.quantityD.a(chǎn)mount()4.A.orB.a(chǎn)sC.forD.with()5.A.a(chǎn)notherB.theotherC.otherD.every()6.A.itB.themC.thatD.this()7.A.formB.typeC.shapeD.kind()8.A.ButB.ThereforeC.YetD.However()9.A.isconstantlybeingreplacedB.hasalreadybeenreplacedC.wasformallyreplacedD.replaced()10.A.dayafterdayB.dayinanddayoutC.bydayD.daybyday()11.A.todealwithB.toworkoutC.toanswerD.settle()12.A.reusedB.usedC.reusingD.using()13.A.onlyonceB.a(chǎn)gainandagainC.oncemoreD.manytimes()14.A.necessaryB.possibleC.impossibleD.important()15.A.TheotherB.AnotherC.SomeD.Acertain三、閱讀理解Duringthe19thcentury,scientistsfoundthatwhencertainpartsofaperson’sbrainwereinjured,hewouldlosethepowertodocertainthings.Andso,peoplethoughtthateachpartofthebraindoesadifferentjob.Butmodernresearchhasdiscoveredthatthisisnotso,foritisnoteasytoshowexactlywhateachpartofthebraindoes.Inthepastfiftyyearstherehasbeenagreatincreaseintheamountofresearchdoneonthebrain.Scientistshavefoundoutthatthewaythebrainworkisnotsosimpleaspeopleingeneralmaythink.Chemiststellusthatabout100000chemicalchangestakeplaceinthebraineverysecond.Somerecentresearchesalsosuggestthatwecanremembereverythingthathappenstous.Wemaynotbeabletothinkofthethingswehaveheardandseen,butitisallkeptthereinthestorehouseofthehumanmind.Earlierscientiststhoughtthatthepowerofone’sbraingotweakerandweakerasonegrewolder.Butitisnowthoughtthatthat’snottrue.Aslongasthebrainisgivenplentyofexercise,itkeepsitspower.Ithasbeenprovedthatanoldpersonwhohasalwaysbeenactiveinthemindhasaquickermindthanayoungpersonwhohasonlydonephysicalworkwithoutusingmuchofhisbrain.()1.Inthelastcentury,scientistsfoundthatapersonwouldlosethepowertodocertainthings————.A.whenhehaddrunktoomuchB.ifcertainpartsofhisbrainwerehurtC.a(chǎn)fterhedidaquitedifferentjobD.ifhehadbeengreatlyfrightened()2.Scientiststodayarestillunabletoshowexactly——.A.howmanychemicalchangestakeplaceinthebraineachsecondB.whethereachpartofthebraindoesthesameworkC.whateachpartofthebrainisdoing.D.whichpartofthebrainisthemostimportant()3.Ithasbeenfoundthatthebrainusuallyworks.A.inafairlycomplicated(復(fù)雜)wayB.a(chǎn)littlenowandalittlethenC.withoutanyrestalldaylongD.inaverysimpleway()4.Whichofthefollowingisnottrue“——.A.Scientistsareworkinghardtosolve(解決)themysteriesofthebrainB.AsmanyassixmillionchangestakeplaceinthebraineveryminuteC.AyoungmandoingphysicallaborissuretohaveamuchslowermindD.Evenanoldmanmayhaveaquickmindonlyifhisbrainisgivenmuchexercise()5.Themoreworkourbrainshave,——.A.thelessresultwewillgainB.themoretiredtheywillfeelC.theweakert

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