六上英语教材Grammartime译林7

Unit7ProtecttheEarth第2课时Grammartime知识点一usesth.todosth.【知识精讲】usesth.todosth.用某物做某事，todosth.是不定式，作目的状语。【经典例题】Mydadusessomepaper__________(make)abagforme.【名师解析】句意：我爸爸用一些纸给我做书包。to后面加动词原形，构成不定式，表示目的。所以答案为tomake。知识点二情态动词should【知识精讲】情态动词should无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语。should,表示应该，用于劝告、建议和命令。肯定句：shouldhelpherbecausesheisintrouble.2.Youshouldgotoclassrightaway.shouldnot=shouldn’t不应该Youshouldn’tleavetheroomnow.一般疑问句：Should+主语+动词原形+其他？答语：Yes,代词+should./No,代词+shouldn’t.ShouldIopenthewindow?Yes,youshould./No,youshouldn’t.特殊疑问句：特殊疑问词+should+主语+动词原形+其他？WhatshouldTomdo?【经典例题】1.You____usetoomanyplasticbags.A.

should

B.

shouldn't

C.

can2.Mygrandpashouldnot________(cut)downthetreesonthehill.【名师解析】1.句意：你不应该用太多的塑料袋。不应该shouldn't，所以选B。2.情态动词should无人称和数的变化,必须与其后的动词原形构成谓语，所以填cut。课时小练一、单项选择()1.Weusewood_______someusefulthings.A.makeB.makingC.tomake()2.Weshould_____inthelibrary.A.keepquietB.keepingquietC.keptquiet()3.Weshouldn’t__________inthezoo.A.litterB.letterC.littering二、用所给词的适当形式填空1.Myfrienduseswood__________(make)aplaneforme.2.Heshould_______(use)theglassbottles.3.Weshouldnot________(litter)inthestreet.三、连词成句。1.we,reuse,should,water(.)_________________________________________________________________2.they,plastic,use,to,bags,make(.)_________________________________________________________________四、完成句子，每空一词。1.我们不应该砍伐太多的树。We________________________toomanytrees.2.我们用木头制成桌子。We_____________________________tables.3.我们应该节约能源,不能浪费。Weshould___________________，andwecan’t_________it.五、句型转换1.Weshouldusetoomanyplasticbottles.〔变为否认句〕________________________________2.Weshouldsavewater.〔改为同义句〕We________________water.3.Shouldwereuseandsavewater？〔作肯定答复〕______________________________4.Weshouldusepaperbags.〔对划线局部提问〕______________________________六、补全对话A.WhatcanIdo?B.It'saboutEarthDay.C.Icandrawsomepicturesontheposter.D.Andtheyshouldstopcuttingdowntrees.E.OnEarthDay,peopleworktogethertokeeptheEarthcleanandhealthy.David:Whatareyoudoing,Simon?Simon:I'mmakingaposter.________David:WhatisEarthDay?Simon:________David:That'swonderful!________Simon:Wecanmakeapostertogether.WecantellpeopletosavetheEarth.4.________David:Yes!________Simon:Goodidea!Wheredoweputthisposter?David:Wecanputitintheclassroom.EverystudentcanseeitonEarthDay.七、阅读短文，选择正确答案。

Thisistheearth.Thegreenpartisland.Thebluepartissea.Thewhitepartisclouds.Ourearthisverybeautifulandinteresting.Manyyearsago,theearthisveryclean.Butnowadaysthereismuchpollutionontheearth.Peoplearepollutingtheland,thewaterandtheair.Peoplemuststopdoingthat.Wemustprotecttheearth.〔1〕The

partislandontheearth.〔2〕Thewhitepartis.〔3〕Ourearthisvery.〔4〕Butnowadaysthereismuchpollutiononthe.〔5〕Peoplearepolluting.A.thelandandtheair

B.thewaterandtheearth

C.theairandtheearth【参考答案】一、CAA二、1.tomake2.use3.litter三、连词成句。1.Weshouldreusewater.2.Theyuseplastictomakebags.四、完成句子，每空一词。1.shouldn’tcutdown2.usewoo