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期中复习（二）Units3&4
1Unit301
2CouldIgooutfordinnerwithmyfriends?Sure,thatshouldbeOK.Couldwegetsomethingtodrinkafterthemovie?No,youcan’t.Youhaveabasketballgametomorrow.Couldyoupleasetakethedogforawalk?OK.butIwanttowatchoneshowfirst.Couldyoupleasetakeouttherubbish?Yes,sureGrammarFocus
3could的主要用法1.could是can的过去式,表示与过去有关的能力和推测。例如：Weallknewthattheyoungmancouldn’tbeadoctor.2.could可以代替can表示请求,但语气较can客气、委婉。例如：Couldyoulendmeyourdictionary?CouldIuseyourbike?
4以could或would提问时，不能再以could或would作答，而应该用can或will。如：—CouldIborrowyourdictionary?—Yes,ofcourseyoucan.
5Unit402
6Youlooktired.What’sthematter?IstudieduntilmidnightlastnightsoIdidn’tgetenoughsleep.WhatshouldIdo?Whydon’tyouforgetaboutit?Althoughshe’swrongit’snotabigdeal.Whatshouldhedo?Heshouldtalktohisfriendsothathecansayhe’ssorry·Maybeyoucouldgotohishouse.IguessIcould,butIdon’twanttosurprisehim.GrammarFocus
7情态动词should、could的用法(一)should的用法：表建议，意为“应该”(1)基本结构:should是情态动词,后接动词原形。(2)否定结构:在should后直接加not,缩写为shouldn’t。(3)疑问结构:将should提到主语之前。
8(二)could的用法1.含义:could是情态动词的过去式。2.用法:(1)表示请求许可。常用于句中,表示语气。回答常用或表示接受请求或拒绝请求。(2)表示建议或劝告,意为“可以,不妨”。can疑问委婉cancan’t
9常用于提建议的句型(1)Whataboutdoingsth?=Howaboutdoingsth?….怎么样？(2)Whydon’tyoudosth?=Whynotdosth?为什么不呢？(3)Let’sdosth.让我们一起做某事吧。(4)Shallwe/Idosth?我们做…好吗？
10(5)hadbetterdo/notdosth最好做/不做某事(6)Will/Wouldyoupleasedosth请你做…好吗？(7)Wouldyouliketodosth?你想去做某事吗？(8)Wouldyouminddoingsth？你介意做某事吗？
11【回答】(1).同意对方的建议时，一般用：Goodidea./That’sgoodidea.好主意。OK/Allright./Great.好/行/太好了。Yes,please./I’dloveto.是的/我愿意。Iagreewithyou.我同意你的看法。Noproblem.没问题。Sure/Ofcourse/Certainly.当然可以。Yes,Ithinkso.对，我也这样想。
12Exercise03
13单项选择。1．—Canyoucometomybirthdaypartytonight？—Yes,I’dloveto.ButIhavetofinish_____myhomeworkfirst．A．doingB．todoC．does2.—WhenwouldyouliketogoswimmingthisFridayorthisSaturday?—______.IamfreeonlythisSunday.A.NoneB.BothC.EitherD.NeitherAC
143.—CanI____RobinsonCrusoe？—Sure,it’sveryinteresting,butyoucanonly____itfortwoweeks．A.borrow;lendB.lend;borrowC.borrow;keepD.lend;keep4.Manytouristspreferfive-starhotelsbecausetheythinkexpensivehotelsalways_____guestswithbetterservice.A.preventB.protectC.presentD.provideCD
155.—I’mtiredoutafterthree-dayworkdayandnight.—_____relaxyourself?Gooutandenjoythenaturalbeauty.A.WhynotB.Whydon’tC.WhataboutD.Shallwe6.—Wedon’thavemuchhomeworkthisweekend.Shallwegoouttogether?—OK.Whatabout_____amovie?A.toseeB.seeingC.seeD.seesAB
16THANKYOU
