Unit4Lesson25课堂课下作业及答案

Unit4LookintoScience!Lesson25（课堂作业）一、英汉互译1.实验2.广口瓶3.观察4.prove5.apieceofcardboard6.upsidedown二、单项选择1.Pleasecoverthetable____apieceofcloth.A.toB.atC.onD.with2.Weshouldkeepourclassroom_____.A.cleanB.cleansC.cleanedD.cleaning3.Pleasefillthebasket_____someeggs.A.inB.toC.withD.for4.Doyouoften____anexperimentinclass?A.takeB.makeC.doD.start5.“Thismademefeelangry.”isakindof_____structure(结构).A.S+V+OB.S+V+DO C.S+V+IO+DOD.S+V+DO+OC三、向同学描述下你曾做过的实验的过程。_____________________________________________________________________________________________________________________________________________________________________________________________________________Keys:一、1.experiment2.jar3.observe4.证明5.一张纸板6.向下翻转过来二、1-5DACCD三、自由发挥题（答案略）Lesson25（课下作业）★基础知识积累根据句意及首字母提示补全单词。1.Mytheorywillp____rightsomeday.2.Pleaseo_____whatIdocarelly.3.Thatpictureisu____down.4.HowlongmayIk___thebook?5.Anexperimentshowswhath_____.★阅读能力提升Wespentadayinthecountryandpickedalotofflowers.Ourcarwasfullofflowersinside!Onthewayhomewehadtostopattrafficlights,andtheremywifesawthebookshelf.Itstoodoutsideafurniture(家具)shop."Buyit,"shesaidatonce."We'llcarryithomeontheroof-rack(车顶架).I'vealwayswantedonelikethat."WhatcouldIdo?TenminuteslaterIwastwentydollarspoorer,andthebookshelfwastiedontotheroof-rack.Itwastallandnarrow,quiteheavytoo.Asitwasgettingdarker,Idroveslowly.Otherdriversseemedmorepolitethanusualthatevening.Thepoliceevenstoppedtraffictoletusthrough.Carryingfurniturewasagoodidea.Afteratimemywifesaid,"There'salonglineofcarsbehind.Whydon'ttheyovertake(超车)?"Justatthattimeapolicecardidovertake.Thetwoofficers(警官)insidelookedatusseriouslywhentheywentpast.Butthen,withakindsmiletheyaskedustofollowtheircarthroughthebusytraffic.Thepolicecarstoppedatourvillagechurch(教堂).Oneoftheofficescametome."Right,sir,"hesaid."Doyouneedanymorehelpnow?"Ididn'tquiteunderstand."Thanks,officer,"Isaid."You'vebeenverykind.Ilivedjustdowntheroad."Hewaslookingatourthings:firstattheflowers,thenatthebookshelf."Well,Well,"hesaidandlaughed."It'sabookshelfyou'vegotthere!Wethoughtitwas-er,somethingelse."Mywifebegantolaugh.SuddenlyIunderstoodwhythepolicedrovehere.Ismiledattheofficer."Yes,it'sabookshelf,butthanksagain."IdrovehomeasfastasIcould.6.Fromthestoryweknowthat___________.A.thewriterwaspooranddidn'tbuythebookshelfforhiswifeB.thewriter'swifedidn'tlikethebookshelfatallC.thewriterwasalwaysgladtobuysomethingforhiswifeD.thewriterwasnotverydadtobuythebookshelfforhiswife7.Whatmadethewriterthinkthatcarryingfurniturewas"agoodidea"?A.Hecoulddriveslowlyanditwassafe.B.Otherdriverswouldlethimgofirst.C.Hiswifecoulduseanewbookshelf.D.Hecouldsavealotofmoneyandtime.8.Whywerethepoliceandotherdriverssokindtothewriter?A.Becausetheythoughtthewriterlikedstudyingverymuchandneededabookshelf.B.Becausetheydidn'tthinkitwaspolitetoovertakeacarwithabookshelfonit.C.Becausetheythoughtsomebodyinthewriter'sfamilyhaddiedandheneededhelp.D.Becausetheythoughtitwasdangeroustocarryabookshelfonacar.9.Whydidthewriter'swifebegintolaugh?A.Becausenowsheknewwhatmistakethepolicehadmade.B.Becauseatlastherhusbandunderstoodwhythepolicehaddriventothechurch.C.Becausetheofficerwasalwayslookingattheflowersandthebookshelf.D.Becausethepolicehadhelpedthemalot.10.Whendidtheofficersbegintorealize(意识到)theyhadmadeamistake?A.Beforetheyarrivedatthechurch.B.Beforetheyovertookthewriter'scarC.Afteroneofthemlookedattheflowersandthebookshelfcarefullyatthechurch.D.Afterthewriter've2.observe3.upsid