易混时态区分一般过去时与过去进行时;一般过去时与现在完成时;现在完成时与现在完成进行时.pptx

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1、一般过去时一般过去时：表示_ 发生的一个单纯事实。构成：过去进行时过去进行时：表示在_ _的动作。构成：过去过去某一时刻/某一时间段内 正在进行/持续进行动作已经结束V.+edV.+edwas/were+V-was/were+V-inging第1页/共15页Mary _(write)a letter to her friend last night.(信写完了；强调事实)Mary _(write)a letter to her friend last night.(信不一定写完；强调动作)我昨天见到一些老朋友。我昨天这个时候在见一些老朋友。wrotewas writingI met some

2、old friend yesterday.I was meeting some old friends at this time yesterday.第2页/共15页Ex.1.-I saw Jane and her boyfriend in the park at eight yesterday evening.-Impossible.She_ TV with me in my home.A.watched B.had watched C.would watch D.was watching 2.-Did you see a man in black pass by just now?-No,

3、sir.I _ a newspaper.A.read B.was reading C.would read D.am reading3.Shirley _ a book about China last year.But I dont know whether she _it.A.wrote;has finished B.was writing;has finished C.was writing;had finished D.wrote;will finish BBB第3页/共15页我三年前第一次遇见丽萨，当时她正在一家超市工作。_ _ NOTESNOTES：过去进行时描述当时正在进行或持续

4、进行正在进行或持续进行,侧重动作的持续性和未完成性持续性和未完成性，一般过去时则侧重于事实事实I first met Lisa three years ago.She was working in a supermarket.第4页/共15页review现在完成时构成：_I havent heard from him for 2 years.So far,everything has went on well.Great changes have taken place in our city in/over/during the last few years.常用的时间状语：have/has

5、+donerecently,already,lately,since then,up to now,from then on第5页/共15页I saw this movie last week.I have seen this movie.He lived here in 1972.He has lived here since 1972.Whats the difference?第6页/共15页.现在完成时现在完成时：_ _.一般过去时一般过去时：只单纯表示过去的动作或状态，和现在不发生关系。表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况。1.I _ in London f

6、or many years,but Ive never regretted my final decision to move back to China.A.lived B.was living C.have lived D.had lived2.Danny _ hard for long to realize his dream and now he is popular.A.works B.is working C.has worked D.worked第7页/共15页“It/This/That is the first（second/third）timethat从句”“It/This/

7、That is the 最高级 that从句”从句中谓语用现在完成时,e.g.It/This/That is the first time that I have come to Zhejiang.It/This/That is the most interesting book that I have ever read.（注:以上句型把is改为was,则从句时态相应改为过去完成时态）第8页/共15页1.Its the second time that I _ in Shanghai!What great changes have taken place in Shanghai.It is

8、ten years since I _ it last time.A.have been,left B.had been,leftC.have been,had left D.went,had left2.The book _ into thirty languages since it came on the market in 1981.A.was translated B.has translatedC.has been translated D.translatedAC被动态的完成时第9页/共15页现在完成进行时现在完成进行时现在完成时+现在进行时have/has done+be do

9、inghave/has been doingThe manager have told the workers how to improve the program.The manager have been telling the workers how to improve the program since 9 am.第10页/共15页现在完成时：强调_或动作_。现在完成进行时：强调动作_。表从过去的某一时刻开始一直持续到现在的动作。已经完成持续性结果Ex.1.Police are now searching for a woman who is reported to _since t

10、he flood hit the area last Friday.A.have been missing B.have got last C.be missing D.get lost 2.The telephone _ four times in the past hour,and each time it was for my roommate.A.has rung B.has been ringing C.had rung D.rang第11页/共15页3.Now that she is out of a job,Lucy _ going back to school,but she

11、hasnt decided yet.A had considered B.has been considering C.considered D.is going to consider 第12页/共15页practice:1.This is the first time we _ a film in the cinema together as a family.A.see B.had seen C.saw D.have seen2.I have to go now.-Must you?I _ you could stay for dinner with us.A.think B.thoug

12、ht C.have thought D.am thinking3.Did you catch what I said?-Sorry,I _ the newspaper just now.A.read B.am reading C.have read D.was reading4.Over the past decades,the sea ice_ as a resulr of global warming.A.had decreased B.has decreased C.has been decreasing D.is decreasing第13页/共15页第14页/共15页感谢您的观看！第15页/共15页