Unit1PastandpresentGrammar(consolidation)Learningaims•1.巩固现在完成时的基本结构、基本用法和常见的动词过去分词。•2.理解并正确运用常和现在完成时连用的时间表达方式。•3.能够在语境中正确运用现在完成时。•Practice1•1.写出下列动词的过去分词（5′arrive______finish_______change____carry______stop_________come_____do_______hold_________win_____write_______build________catch____keep_______forget_______tell_____be_________have________take____know________draw______see_____eat_______plan_________sell____•2.完成课课练P7（四）（3′•Keys:•1.haveworked•2.Has;turned;has•3.Have;cooked;haven’t•4.hasn’t;yet•5.haven’ttold•6.Howlong这里的have、has不是有的意思，它是和后面的过去分词构成现在完成时，它具有助动词的特性。你会识别现在完成时？___________通常与表示过去确切时间的时间状语连用。例如：yesterday,lastweek,in2002,anhourago等；____________则常与just,already,ever,never，just,recently,yet等副词和thesedays,thisweek,since...,for...等表示一段时间的时间状语连用。Howtousethem?already肯定句，表示“已经”,ever疑问句，表示“曾经”，for肯定句/否定句/疑问句，表示一段时间just肯定句，表示“刚刚”，never否定句，表示“从不”，recently肯定句/否定句/疑问句，表示“最近”since肯定句/否定句/疑问句，表示“自……以后”yet疑问句/否定句,表示“已经”或“还没有”Translatethefollowingsentences•1.我们已经完成了家庭作业。•2.他从没参观过北京。•3.你曾经看过这部电影吗？•4.他们刚刚吃了你的食物。•5.他还没有把那本书还给我。•6.最近我读了许多书。•7.自2004年以来我就是一名老师。•8.我在东海居住好多年了。2.Completethesentencesusingthepresentperfecttense.1.They____________(finish)theirhomework.2.MrandMrsLi____________(notcome)backyet.3.John__________(play)thiscomputergameafewtimes.haven’tcomehavefinishedhasplayed4.We____________(notsee)thatfilmyet.5.MrDong____________(repair)overtenbicyclessincelastMonday.6.You_____________(notvisit)meforalongtime.haven’tseenhasrepairedhaven’tvisited7.He______________(notfinish)thehomeworkyet.Hewilltrytofinishitquickly.8.Myfamily________(live)inNanjingsince1996.9._____you______(know)himsincethen?hasn’tfinishedhaslivedHaveknown10.They_____already_______(decide)togotoKunmingfortheholiday.11.We___________(move)tothenewflatsincelastmonth.12.Thegirl__________(learn)Englishforabouttwoyears.havedecidedhavemovedhaslearned13.MyfatherwenttoBeijingtwoweeksago.I____________(notsee)himsincethen.14.____Tom_______(write)letterstoyourecently?15.Jack’smotherisn’tathome.She________(go)tothesupermarket.16.Thefilm________(be)onforabout20minutes.Wemissedthebeginning.haven’tseenHaswrittenhasgonehasbeen3.Completetheconversationusingthecorrectformsoftheverbsinbrackets.Millie:(1)_____you____(see)anyexhibitionsrecently,Sandy?Sandy:No,I(2)_______.Whataboutyou?Millie:Well,I(3)________(see)one.I____itatthehistorymuseumlastweek.Sandy:What’sitabout?Haveseenhaveseenhaven’tsawMillie:I(4)_____________(forget)thetitle.It’saboutchangesinBeijingoverthepastcentury.Sandy:Oh,yes.I(5)__________(hear)aboutit.(6)_____yourcousin_____(go)withyou?Millie:No,he(7)______.He(8)________(be)verybusythisweek.haveforgottenhaveheardHasgonehasn’thasbeenSandy:Didyouenjoytheexhibition?Millie:Yes,Idid.I(9)__________(learn)alotaboutBeijing’spastandpresent.It’sagoodexhibitionandI(10)____________(decide)toseeitagain.Doyouwanttogowithme?Sandy:Sure.Iwon’tmissitthistime.havelearnthavedecided如何区别现在完成时和一般过去时1.Isawth...
