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1、Unit3Couldyoupleasecleanyourroom?SectionA(Grammarfocus-4c)Step1Revision根據(jù)所學內(nèi)容，寫出下列短語。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？表示委婉地提出請求1.Couldyoupleasecleanyourroom?Yes,sure./Ofcourse./Certainly./Allright.2.Couldyoupleasedothedishes?Sorry,Ican’t.Ihavetodomyhomework.在表示請求幫助或請求允許的疑問句中，常用could代替can，以表示禮貌，委婉或不確定的語氣，而can則不具備這些語氣。這種情況下不能把
4、could看作can的過去式。以上兩句中用could是為了表示禮貌的請求。表示請求幫助或請求允許時，除了can,could之外，還可以用may，句子的表達方式也各有不同，可以用不同的方式來表示同一個概念。例：①Could/Can/MayIuseyourcarforaday?②IwonderifIcoulduseyourcarforaday?對于①、②句所作允答可以各種各樣，如同意可以說Yes或Sure或Certainly，還可說Yes,(do)please.或Ofcourse.(youmay/can).或Goahead,p
5、lease.或That’sOK/allright;如果不同意，可以說I’msorryyoucan’t.或I’mreallysorry,butIhavetouseittoday.要避免說No,youcan’t.這樣顯得很不禮貌。否定回答通常用委婉語氣。③DoyoumindifIuseyourcarforaday?對于句③所作回答可以說Nevermind./Notatall.表“不介意”。不能用Yes./Sure./Ofcourse./Certainly.等。無論肯定還是否定應答中，要避免使用could，要用can或may。因
6、為應答須用確定的語氣。而could在表請求的問句中是為了表示禮貌或委婉語氣，用在應答中則成了不確定語氣，與情理不符。所以應答中不說Yes,youcould.或No,youcouldn’t.而要說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求或提議，其后連接原形動詞，比Cany
7、ou/I…？語氣更委婉。類似句型有：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
