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1、SectionA1a-1cUnit3 Couldyoupleasecleanyourroom?Doyouoftenhelpyourparentsdochores?dochores=dohouseworkcleanthelivingroomdothedishesmakethebedtakeoutthetrashfoldtheclothessweepthefloorDoyoudothesechoresathome?washthedishesGuess!要插入图片WhatchoreisMissLidoing?She’sdoingthedishes.WhatchoreisMrsGreendoin
2、g?She’ssweepingthefloor.WhatchoreisSallydoing?Sheistakingoutthetrash.WhatchoreisshedoingnowSheiscooking.makethebeddothelaundrydothedishestakeoutthetrashsweepthefloorcleanthelivingroomfoldyourclothes洗餐具拿出垃圾扫地洗衣服铺床叠衣服打扫客厅PAIRWORKA:Couldyouplease…?B:Yes,sure./Yes,Ican./Sorry,Ican’t.Ihaveto…/I’mgoing
3、to…Haveapairwork:A:CouldIplease…?B:Yes,sure./Yes,youcan./Sorry,youcan’t.Youhaveto…/You’regoingto…Listen.whatkindkindofchoresdopeterandhismotherdo?Check(√)peter’smotherorpeter.√√√√√√1.你能倒一下垃圾吗？当然可以。Couldyoupleasetakeoutthetrash?Yes,sure./Ofcourse./Certainly.2.你能洗下衣服吗?不行啊，我得先完成作业。Couldyoupleasedoth
4、elaundry?Sorry,Ican’t.Ihavetodomyhomeworkfirst.3.你能铺一下床和叠下衣服吗?不行啊，我明天有考试。Couldyoumakethebedandfoldtheclothes?Sorry,Ican’t.Ihaveatesttomorrow.exerciseWhatdowelearntoday?takeoutthetrashdochoresdothedishessweepthefloordothelaundrymakedinnermakeyourbedfoldyourclothescleanthelivingroom取出垃圾处理琐事洗餐具清扫地板洗
5、衣服做饭整理床铺折叠衣服清扫起居室1.Couldyoupleasecleanyourroom?Yes,sure./Ofcourse/Certainly./Allright.2.Couldyoupleasedothedishes?Sorry,Ican’t.IIhavetodomyhomework.KeysentencestructuresCouldyou（please）+V-原形？表示委婉地提出请求Ihaveaheadache.I’mverybusy.IamlisteningtoEnglishtape.…+reason情态动词用法小结情态动词的语法特征:1)情态动词不能表示正在发生或已经发
6、生的事情,只表示期待或估计某事的发生。2)情态动词除ought和have外,后面只能接不带to的不定式。3)情态动词没有人称,数的变化,即情态动词第三人称单数不加-s。4)情态动词没有非谓语形式,即没有不定式、分词等形式。could与can的区别：could与can都是情态动词,could是can的过去式。二者都可用于表示请求,但是用法稍有不同。can表示一般性的请求,语气随便，常用于熟人之间或长辈对晚辈,上级对下级的场合。e.g.Canyoutellusyourstory,Tony?Tony,你能给我们讲讲你的故事吗？could表示有礼貌的请求,语气委婉,常用于非熟人之间或晚辈对长辈,
7、下级对上级的场合。e.g.CouldyoutellusifitsnowsinwinterinAustralia?Sure.请告诉我们,澳大利亚冬天下雪吗?当然可以。提出委婉的请求在回答中不可用could。---CouldIhavethetelevisionon?---Yes,youcan./No,youcan’t.2.在否定、疑问句中表示推测或怀疑。Hecouldn’tbeabadman.他不大可能是坏人。may和might表示允许
