辽宁逝年级英语全册Unit13We'retryingtosavetheearth课时6SectionB3a－SelfCheck课件新版人教新目标版

课时6

SectionB(3a－SelfCheck)

Unit13We'retryingtosavetheearth!一、用括号中所给单词的适当形式填空。1.Sofar,no_________(science)studieshaveshownthatthereislifeonotherplanets.2.Doyouknowthe_________(different)betweenthesebooks?3.Sometall_________(build)willbebuiltintown.返回目录scientificdifferencesbuildings4.It’simportantforustohave_________(create).5.Gregwasa(n)_________(luck)boy.Helostanarminanaccident.返回目录creativityunlucky二、单项选择。6.［2023·丹东模拟］—Doyouoftengetonline?—Yes.I____lotsoftimeonit.A.costB.spendC.takeD.pay返回目录B7.Eatingtoomuchjunkfoodis____yourhealth.Soyou’dbetterstayawayfromit.A.harmfultoB.friendlytoC.suitableforD.goodfor返回目录A8.—Theclassroomissobrightnow.Youshould____thelights.—OK,Iwill.A.turnonB.turnupC.turndownD.turnoff返回目录D9.［2023·营口模拟］Wemustdosomethingusefulto____pollution.A.cutoffB.cutupC.cutdownD.cutinto返回目录C10.[易错题]Water____intoiceifthetemperaturedropsbelowzero.A.turnB.turnsC.turnedD.wouldturn返回目录B三、按要求完成句子，每空一词。11.Allofasudden,itgetsdark.（改为同义句）________,itgetsdark.返回目录Suddenly12.Ichoosetorideabike.Ichoosenottodriveacar.（合并为一句）Ichoosetorideabike________________drivingacar.返回目录insteadof13.Wedon’thaveenoughmoneytobuythathouse.（改为同义句）We________________tobuythathouse.返回目录can'tafford14.Canyougivemesomeadviceonhowtosolvetheproblems?（改为同义句）Canyougivemesome__________onhowtosolvetheproblems?返回目录suggestions15.Thegovernmentaskedsomefactoriestoclosetoprotecttheair.（改为被动语态）Somefactories________________________________bythegovernmenttoprotecttheair.返回目录wereaskedtoclose四、［2023·抚顺月考］完形填空。“Mostpolar（北极）bearscoulddisappearbytheendofthecenturybecauseofglobal（全球）warming,”scientistssay.AccordingtoastudyinNatureClimate（气候）Change,thenumberofpolarbearswill16____rapidly（快速地）by2080.16.A.developB.fallC.increaseD.improveB返回目录Therearetworeasons.Oneisthattheseaiceismelting（融化）.Polarbearscatchseals（海豹）toeatontheice.17____

ice,theyhavetostayonland.17.A.ThroughB.AcrossC.WithoutD.Except返回目录CButthereisno18____foodonlandtosupportsomanypolarbears.Theanimalscoulddiefromhunger.18.A.enoughB.goodC.sweetD.delicious返回目录A返回目录Theotherreasonisthatmotherpolarbearsmaynotbefatenoughto19____

milkfortheirbabies,sosomepolarbearscouldstophavingbabies.19.A.protectB.processC.prepareD.produceDPolarbearsare20____

landanimalsthateatmeatontheplanet.Theyhelpcontrolotherkindsofanimals.Losingthemwouldbreakthebalanceoftheirlivingplace.20.A.thelargestB.theloveliestC.thesimplestD.theluckiest返回目录ATheArctic（北极）is21____

toabout25,000polarbears.Arcticseaiceusuallymeltsinspringandsummer,andthengrowsinwinter.21.A.roomB.familyC.houseD.home返回目录DButnow,the22____

istakinglongertogrowback.ScientistssaytheArcticiswarmingtwiceasfastastherestoftheplanet.22.A.seaB.iceC.plantD.animal返回目录BThestudyalsoshows23____

itispossibletoslowArcticseaicemelting.Greenhousegases（温室气体）couldleadtoclimatechange.Inordertoavoidcreatinggreenhousegases,theworldshouldtrytostopburningcoalandridingincars.23.A.ifB.whenC.thatD.whetherC返回目录Savingthebearsis24____us.Holland,oneofthewritersofthestudy,says,“Ibelievethereishope,buthumansneedtoact25____

tomakethathopecometrue.”Let’stakeactiontoprotectourearthandsavepolarbears.24.A.uptoB.hardonC.goodwithD.thankfulto25.A.widelyB.clearlyC.quicklyD.quietlyAC返回目录五、短文还原（有一项为多余选项）。Ahealthyenvironmentisveryimportanttoeveryone,butsomepeopledon’trealizetheimportanceofprotectingtheenvironment.26._____Weknowit’severyone’sdutytoprotectourenvironment.Herearethreewordspeopleshouldrepeatwhenfacingtheproblemsabouttheenvironment.CA.Saveasmuchmoneyasyoucan.B.Repairthemifpossible.C.Theythrowwasteeverywhere.D.Donotordermorefoodthanyoucanfinish.E.Divideyourrubbishintoplastic,glass,paper

andrubber.返回目录ReduceReducemeans“usethingsless”.Donotwastethings.Itsavesmoneyandcauseslesspollution.27._____Turnoffthelightswhenyoudonotneedthem.Beforeyoubuysomethingnew,thinkwhetheritisreallynecessarybecausemaybetheoldoneisjustasgood!返回目录DA.Saveasmuchmoneyasyoucan.B.Repairthemifpossible.C.Theythrowwasteeverywhere.D.Donotordermorefoodthanyoucanfinish.E.Divideyourrubbishintoplastic,glass,paper

andrubber.ReuseReusemeans“usethingsagain”.Usethingsforaslongaspossible.Lookafterthemsothattheywilllast.28._____Donotthrowthemawayandbuynewones.Donotusepapercupsorpaperbags.返回目录BA.Saveasmuchm