外研版高中英语Book 1 Module 4 Grammar The Present Perfect Tense教学课件(共20张PPT).ppt

1、1.Its been six years since we last saw each other.2.This is the first time Ive visited your hometown.3.Ive visited some beautiful cities,but this is one of the most attractive places Ive been to.4.Theyve put up a lot of high-rising buildings recently.have/has+done(过去分词)(一)现在完成时的基本用法：1.表示动作到现在为止已经完成或

2、刚刚完成。I have finished my work.We have set up many new factories.2.动作发生在过去,强调对现在的结果、影响等。Have you ever seen the film“Harry Potter”?Ive spent 3 years in the countryside.现在完成时(Present perfect tense)3.表示动作发生在过去,并且一直持续到现在,甚至还可能继续下去,句中使用持续性动词,且常有表示一段时间的时间状语。We havent seen each other for ten years.Ive been a

3、n English teacher for about 20 years.4.现在完成时可以用在条件或时间状语从句中,表示将来某个时刻之前已经完成的动作。Ill go home as soon as I have finishedmy homework.Please lend me that book if you have finished reading it.(二)使用现在完成时的句型1)现在完成时+since+点时间状语(名词、短语、从句,其中从句用一般过去时)2)现在完成时+for+段时间状语3)It/This is the first/其他序数词/last time+that 从句

4、中,从句使用现在完成时。注意:在下面的句子中,主句的谓语动词常用一般现在时：It is three years since I began to work on the farm.Its a long time since I saw you last.现在完成时表示某一已经完成的动作对现在造成的结果或影响，强调的是现在的情况，所以不能与表示过去的时间状语连用；一般过去时只表示某一动作或状态在过去发生或存在过，与现在不发生联系，它可以与表示过去的时间状语连用。(三)现在完成时与一般过去时的区别:He has read that book.(说明他现在知道那本书的内容)He read that

5、book last year.(只说明他去年读过那本书)He has gone to America.(他现在不在此地，在美国)He went to America.(只说明他去过美国)(四)终止性动词与延续性动词：1.终止性动词:表示短暂的运动状态，不能和表示一段时间的状语连用，常用的动词有：come,go,start,begin,leave,arrive,reach,get,get up,join,marry,open,close,give,lend,borrow,finish,break,see,hear,notice,find,understand,die 等。2.延续性动词:表示长时

6、间的运动状态,能和表示一段时间的状语连用。常用的动词有:live,study,work,teach,stay,read,play,fly,talk,rain,eat,run等。1.-How are you today?-Oh,I _ as ill as I do today for a very long time.A.didnt feel B.wasnt feeling C.dont feel D.havent felt2.-_ David and Vicky _married?-For about three years.A.How long have;been B.How long ha

7、ve;got C.How long were;being D.How long did;get3.It is the third time you _ late this week.A.had arrived B.arrived C.have arrived D.are arriving4.-Did you enjoy your holiday?-Wonderful.It is years _ I enjoyed myself so much.A.after B.when C.before D.since5.When I was at college,I _ three foreign lan

8、guages,but I _all except a few words of each.A.spoke;had forgotten B.spoke;have forgotten C.had spoken;had forgotten D.had spoken;have forgotten6.-Where _ the recorder?I cant see it anywhere.-I _ right here.But now its gone.A.did you put;have put B.had you put;was puttingC.have you put;put D.were yo

9、u putting;have put7.The price _,but I doubt whether it will remain so.A.went down B.will go down C.was going down D.has gone down8.They are discussing the problem the whole afternoon,but they _ a decision so far.A.didnt reach B.wont arrive at C.havent come to D.all above9.-I have bought an English-C

10、hinese dictionary.-When and where _ you _ it?A.do;buy B.did;buy C.have;bought D.had;bought10.-I heard the peasants here _ very poor in the past.-Yes,but there _ great changes in the past few years.A.were;were B.have been;have been C.have been;were D.were;have been1.By the time he realizes he _ into

11、a trap,itll be too late for him to do anything about it.2.A.walks B.walked C.has walked D.had walked2.-Im sure Andrew will win the first prize in the final.-I think so.He _ for it for months.A.is preparing B.was preparing C.had been preparing D.has been preparing3.-Do you think we should accept that offer?-Yes,we should,for we _ such bad luck up till now,and time _ out.A.have had;is running B.had;is running C.have;has been run D.have had;has been run 4.So far this year we _ a fall in house prices by between 5 and 10 percent.A.saw B.see C.had seen D.have seen