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1、Unit3Couldyoupleasecleanyourroom?SectionA(Grammarfocus-4c)Step1Revision根據(jù)所學(xué)內(nèi)容，寫(xiě)出下列短語(yǔ)。foldone’sclothes,dothedishes,useone’scomputer,takeouttherubbishmakethebed,sweepthefloor,stayoutlate,beangrywithsb.,takesb.forawalkcleanthelivingroom,workon,comeover,dothehousework
2、,getarideStep2Presentation閱讀下列句子，觀察問(wèn)句的用法及回答。CouldIgooutfordinnerwithmyfriends?Sure,thatshouldbeOK.Couldwegetsomethingtodrinkafterthemovie?No,youcan’t.Youhaveabasketballgametomorrow.Couldyoupleasetakethedogforawalk?OK,butIwanttowatchoneshowfirst.Couldyoupleasetakeo
3、uttherubbish?Yes,sure.Step3GrammarCouldyou（please）+V-原形？表示委婉地提出請(qǐng)求1.Couldyoupleasecleanyourroom?Yes,sure./Ofcourse./Certainly./Allright.2.Couldyoupleasedothedishes?Sorry,Ican’t.Ihavetodomyhomework.在表示請(qǐng)求幫助或請(qǐng)求允許的疑問(wèn)句中，常用could代替can，以表示禮貌，委婉或不確定的語(yǔ)氣，而can則不具備這些語(yǔ)氣。這種情況下不能把
4、could看作can的過(guò)去式。以上兩句中用could是為了表示禮貌的請(qǐng)求。表示請(qǐng)求幫助或請(qǐng)求允許時(shí)，除了can,could之外，還可以用may，句子的表達(dá)方式也各有不同，可以用不同的方式來(lái)表示同一個(gè)概念。例：①Could/Can/MayIuseyourcarforaday?②IwonderifIcoulduseyourcarforaday?對(duì)于①、②句所作允答可以各種各樣，如同意可以說(shuō)Yes或Sure或Certainly，還可說(shuō)Yes,(do)please.或Ofcourse.(youmay/can).或Goahead,p
5、lease.或That’sOK/allright;如果不同意，可以說(shuō)I’msorryyoucan’t.或I’mreallysorry,butIhavetouseittoday.要避免說(shuō)No,youcan’t.這樣顯得很不禮貌。否定回答通常用委婉語(yǔ)氣。③DoyoumindifIuseyourcarforaday?對(duì)于句③所作回答可以說(shuō)Nevermind./Notatall.表“不介意”。不能用Yes./Sure./Ofcourse./Certainly.等。無(wú)論肯定還是否定應(yīng)答中，要避免使用could，要用can或may。因
6、為應(yīng)答須用確定的語(yǔ)氣。而could在表請(qǐng)求的問(wèn)句中是為了表示禮貌或委婉語(yǔ)氣，用在應(yīng)答中則成了不確定語(yǔ)氣，與情理不符。所以應(yīng)答中不說(shuō)Yes,youcould.或No,youcouldn’t.而要說(shuō)Yes,youcan.或Sorry./No,youcan’t.—CouldIpleaseuseyourcomputer?—Sorry,I’mgoingtoworkonitnow.—Well,couldIwatchTV?—Yes,youcan.CouldI/youplease…？表示一種有禮貌的請(qǐng)求或提議，其后連接原形動(dòng)詞，比Cany
7、ou/I…？語(yǔ)氣更委婉。類(lèi)似句型有：Wouldyoulike+sth./todosth.?MayI+dosth.?Shallwe+dosth.?Wouldyoumind+sth./doingsth.?What/Howabout+sth./doingsth.?肯定回答有Sure./Ofcourse./Certainly./OK./Great./Well./Goodidea./Iagree.等。否定回答有Sorry…/No,youcan’t.等。Step4PracticeMakeupdialoguesusingthesente
8、ncesinGrammarFocuswithyourpartner.A:Couldyoupleasetakethedogforawalk?B:OK,butIwanttowatchoneshowfirst.4aWriteRforrequestsandPforpermission.Thenmatcheach
