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2020年高中英语Unit3LifeinthefutureSectionⅢLearningaboutLanguage&UsingLanguage课时作业新人教版必修5.doc

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SectionⅢLearningaboutLanguage&UsingLanguage课时作业Ⅰ.单句语法填空1．Theyneedanactivitywheretheycanlearntocooperatewitheachother.2．Theywerebothuncertain(certain)aboutwhattodoandwenttotheiruncleforhelp.3．Asthemeetingwason,themanwhowaslateslid(slide)intothemeetingroomwithoutbeingnoticed.4．Hegotintoasituationwhereitishardto_decide(decide)whatisrightandwrong.5．Bothsidessaidthattheywantedtotrytoreachasettlement(settle)inapeacefulway,notbyviolence.6．Fortunately,someonewhohappenedtobepassingbycalledthefiredepartmentinstantly(instant)thefirebrokeout.7．Thedustmanswept(sweep)upallthefallenleavesonthisstreetyesterday.8．Markwentintotheroomandpickedupthereceiver(receive)andstartedtodialhisfriend'snumber.9．Herparentsgavehersomuchmoneythatshe'sgotnomotivation(motive)togetajob.10．Therecycled(recycle)waterisusedtowaterplants.Ⅱ.单句改错1．AsfarasIknow,theschoolcan'ttoleratecheatintheexam.cheat→cheating2．Wemustneverlosethesightofthefactthatmanmustliveinharmonywithnature.去掉第一个the3．Afraidofcaught,thethiefhidhimselfunderabed.of后加being4．Wehadbettersetupasystemwhichwecanworkefficientlyandequally.which→where5．It'simpossibleforhertohavemorefreetimetoaccompanyherparentsbecauseherworktakesonmuchofhertime.on→upⅢ.阅读理解AHybridcars(混合动力车)arecarsthatrunonpetrolandelectricity.Theyhaveasmallstandardpetrolengineandabattery(电池)electricmotortoprovideelectricpower.Therearesomedifferencesbetweendifferentmodelsofhybridcars,butthegeneralprincipleisthatthecarrunsonpetrol,andtheelectricmotorkicksinwhenadditionalpowerisrequired,forexample,whengoinguphilloraccelerating.Insomehybridcarsthepetrolengineturnsitselfoffwhennotneeded,forexamplewhenthecarhasstoppedattrafficlights,keepingonlytheelectricenginerunning.Conventionalcarshavelargeenginestodealwithdrivinguphillandaccelerating.Hybridcarshavemuchsmallerpetrolengines,improvedbyelectricmotorswhenneeded,sotheyuselesspetrol.Anotherwaythatfuelconsumptioniscutisbyasystemof“regenerative(再生的)braking”.Theelectricmotorisusedtoslowdownthecar,ratherthanconventionalbrakes.Theenergyproducedbys