八年级英语下册（山西专版）,学练优同步作业课件,单元语法精讲情态动词could的用法1.表示“过去的能力和可能性“could为can的过去式,表示“过去的能力和可能性“时,其肯定回答和否定回答都用could。如:Coaldyou.playbasketballwhenyou.were5yearsold?当你5岁时,你会打篮球吗?Yes,Icould./No,Icouldnt是的,我会。/不,我不会。缘一卵E。Ij凌2.表示请求的问旬。could可用于表示请求的问句中,其表现形式有两种。DCouldyou(please)?表示恳求对方做某事。如:Couldyoupleasehelpmecleantheroom?你能帮我打扬房间吉Could1.?表示请求对方允许自己做树事。如:CouldIuseyourbike?我可以用你的自行车吗?3.表示请求的问句的回答。could表示请求时,其肯定回答和否定回答都不用could,肯定回答常用Certainly./Ofcourse.Yesplesse./TPsOK./Allright.等;香定回答常用Sorry.Tmafraidnot./Tmsorry,youcant/Tmsorry,but./Ofcoursenot,。如:Couldyoupleasedothedishes?请你洗洗盘子好吊?Sorry,Tm“afraidnot,T_have_to_do_myhomework.对不起,恐怕不行。我得做作业。Couldhseyourcompuiery我可以用你的电脑合?Certainly.当然可以。单元语法精练1.单项选择。)1.(2017.湖北囊阳中考改编)一Couldyougotothenewmoviewithmenow2“Look,itstimeformetowatchTheReaderonCCTV:Acant3canC,neednt()2.Couldyouplease)3.theClaSeron】?AsSweepB.sweepsC.sweepingCouldLhangoutwithmyfriends?uhavetoprepareforyourEnglishtest.八.Yes,sureB.NouyoucantC.工hatsOK)4.Couldyoupleaseitagain?Anotdo3.nottodoC.doing)5.一CouldyoupleasehelpmeputuptheImaps0ntheWaL2A.NoproblemB.IhopesoC.Thatsallright.用所给词的适当形式填空。1.Couldyou(Chelp)mewithmylessons?2.Couldyou(make)mybed7Tmlate.3.Couldyouplease(clean)yourroom2t.Couldwe(leave)atseveni?5.一CouldIwatchTVnow2Yes,you(could).川.运用每一小题后的提示语回答下面问题。1.Q:Couldyoupleasecleanyourroom2(Sorrydothedishes)人。