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1、阶段专题复习Unit3情态动词could的用法【观察领悟】仔细观察例句,然后判断哪些句子表示请求,哪些句子表示请求允许,分别在括号内标出(WriteRforrequestsandPforpermission)1.Couldyoupleasecleanyourroom?()2.Couldyoutakeouttherubbish?()3.Couldyoupleasetakethedogforawalk?()4.CouldIuseyourcomputer?()5.Couldwegetsomethingt
2、odrinkafterthemovie?()答案:1～5.RRRPP【探究总结】1.could表示委婉地请求,其句型结构主要有:(1)Couldyou+动词原形+...?(2)Couldyouplease+动词原形+...?意为“请你做……好吗?”句型(2)比句型(1)语气更加委婉。肯定回答:Yes,sure./Sure./Ofcourse./Noproblem.否定回答:Sorry./Sorry,Ican’t.2.could表示请求允许,其句型结构为:CouldI/we+动词原形+...?意为“
3、请问我(们)能做……吗?”肯定回答:Sure./Ofcourse./Noproblem.否定回答:I’msorry/Sorry,youcan’t.若关系比较亲近,也可以直接说No,youcan’t.【温馨提示】在以上句子结构中情态动词could不是can的过去式,而是用来表示委婉语气,后跟动词原形。【实战演练】完成句子。1.——请你教我如何制作香蕉奶昔好吗?——好的,当然可以。—__________youplease__________mehowtomakeabananamilkshake?—__
4、________,__________.答案:Could;teach;Yes;sure2.——请你把我们的院子打扫一下好吗?——当然可以。—__________youplease__________ouryard?—__________/__________/____________________/____________________/____________________.3.——请你帮我洗车好吗?——对不起,我不能。我必须去上学。—Couldyoupleasehelpmewashthe
5、car?—__________,____________________.Ihavetogotoschool.答案:2.3Could;sweep;Sure/Certainly/Ofcourse/Noproblem/Allright.Sorry;Ican’t4.——我能坐在这儿吗?——是的,你可以坐这儿。—_________I_________here?—Yes,you_________.5.——我能借一下你的电动车吗?——对不起。我得骑车外出。—_________I_________youre-b
6、ike?—_________.Ihavetorideittogoout.答案:45..Could;sit;canCould;borrow;SorrySweep(过去式）_________throw(过去式）_________both（反义词）_________fold(过去式）_________pass(过去式）_________（三单）_________borrow(过去式）_________lend(过去式）_________stress(adj.)______develop(n.)_____
7、____(adj.)_________fair(反义词）_________(n.)_________ill(n.)_________drop(过去式）_________indepent(n.)_________sweptthrewneitherfoldpassedpassborrowedlentstreetdevelopmentdevelopeddevelopingunfairfairnessillnessdroppeddroppingindepenceⅣ.词汇串记“Dothedishes.1(打
8、扫)thef__2____.Takeoutther___3___.4(叠)theclothes...”Doyourparentssaythesethingstoyou?Ofcoursetheydo.Why?Well,someonehastodoit.Theyare5(家务;杂务)—smalleverydayduties.Youmaygetmoneyfordoingachoreoryoumaynot.Parentsandotherpeopledon’talwaysgiveorders
