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1、Unit3 Couldyoupleasecleanyourroom?八年级下册英语（人教版）单元语法专题—GrammarFocus情态动词could情态动词could构成的句型用于向对方提出请求或征求对方的许可，表示委婉的语气。1．委婉地表示请求别人做某事时用：Couldyou(please)dosth.？此句型的肯定答语用：Yes,sure./Yes,Ican./Ofcourse,Ican./Noproblem./Withpleasure.等；否定答语用：Sorry，Ican't.Ihaveto…/Sorry.I'mgoingto…/I'maf
2、raidIcan't.Ihaveto…等。总之，答语没有固定的形式，但要符合上下文的语境。如：—Couldyoupleasemakeyourbed？请你整理你的床铺好吗？—Yes,sure.好的，当然可以。—Couldyouwashtheclothes？请你洗衣服好吗？—Sorry,Ican't.I'mgoingtodomyhomework.抱歉，我不能。我要做作业。2．委婉地表示请求别人允许自己做某事时用：CouldIdosth.？此句型一般不在I后加please，肯定答语用：Yes,youcan./Yes,please.等；否定答语用：Sor
3、ry,youcan't./I'mafraidyoucan't.等。如：—CouldIgotothemovies？我可以去看电影吗？—Yes,youcan.是的，你可以。—CouldIuseyourcomputer?我可以用你的电脑吗？—Sorry，youcan't.I'mgoingtoworkonit.抱歉，你不能，我要用它工作。【注意】无论是“Couldyouplease…？”还是“CouldI…？”句型，其答语中一般避免使用could来回答。一、用括号内所给单词的适当形式填空。1．Peter,weneedtocleanthehouse.Cou
4、ldyouplease_______(sweep)thefloor?2．—Couldyouplease______(take)thedogforawalk?—OK,butIwanttowatchoneshowfirst.3．—Couldyouplease___________(notsmoke)inthelibrary?—Sorry,Iwon't.sweeptakenotsmoke二、单项选择。4．—Couldyoupleasehelpmecleantheroom?—____．Iambusybabysittingmysister.A．Sorry,
5、youcan'tB．Yes,sureC．Yes,IcanD．Sorry,Ican't5．—Myrecorderisbroken.CouldIuseyours?—____，butyouhavetoreturnittomorrow.A．I'mnotsureB．NoproblemC．I'msorryD．IhopesoDB6．—Couldyoupleasetakeouttherubbish?—____．A．Yes,sureB．No,sureC．Yes,IamD．No,Isure7．Thetalentedboy____writelyrics(歌词)．A．m
6、ayB．couldC．mightD．needsAB8．Adirectorderlike“Daisy,passmethebook”soundsrude.We'dbettersay：“____”A．Daisy,couldyoupleasepassmethebook?B．Daisy,Iwonderifcanyoupassmethebook.C．Daisy,givemethebook!D．Daisy,Iwonderyoucanpassmethebook.A9．Couldyouplease____thewindow?It'stoocoldoutside.A
7、．openB．openingC．notopenD．nottoopen10．—CouldIborrowyourcamera?—____，butpleasegiveitbackbySaturday.A．IamsorryB．OfcourseC．CertainlynotD．No,thanksCB三、按要求完成下列句子。11．Couldyouletmegoouttonight？(改为同义句)___________goouttonight?12．Couldyoupleasehelpdothedishes？(作肯定回答)___________．13．Could
8、wegotothezoothisSunday？(作否定回答)_______________．14．Couldyoupleasemovet
