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1、：短暂性动词不能和for或since引导的时间状语连用，也不能用于how long问句中。（误）I have left for 5 years.,(正)I have been away for 5 years.,短暂性动词与延续动词间的转换,短暂性(短动词)动词不能和表示一段时间的时间状语连用,但是他可以转换成相应的延续性(长动词)动词.,leave-come/go(to)-arrive(at/in)-get(to)-reach-buy-borrow-finish-,join-start/begin-die-close-open-return-marry-become-,be away(fro
2、m),be(in/at),be(in/at),be(in/at),be(in/at),have,keep,be over,be in/be a/an,be on,be dead,be closed,be open,be back,be married,be,Please point out any mistakes and correct,She has bought the computer for two years.,had,Please point out any mistakes and correct,How long have you come to the United Sta
3、tes？,been in,Please point out any mistakes and correct,Ann has gone to China since three months ago.,been in,Please point out any mistakes and correct,I have got to Paris for one week.,been in,Please point out any mistakes and correct,My brother has joined the army for five years.,been in,been a sol
4、dier,Please point out any mistakes and correct,I have left Shanghai for 3 days.,been away for 3 days.,Please point out any mistakes and correct,I have borrowed the dictionary since 3 days ago.,kept,Please point out any mistakes and correct,The film has begun for 10 minutes.,been on,Please point out
5、any mistakes and correct,The concert has finished for half an hour.,been over,Please point out any mistakes and correct,His dog has died for two years.,been dead,Please point out any mistakes and correct,She has married for six years.,been married,eg.a.He has borrowed my English book for two days.(F
6、alse)b.He has kept my English book for two days.(true)a.I have bought the new dress since last month.(false)b.I have had the new dress since last month.(true)a.They have left for half an hour.You should come earlier.(false)b.They have been away for half an hour.You should come earlier.(true),a.How l
7、ong has the film begin?(false)b.How long has the film been on?(true)a.He is an unlucky boy.His mother has died for several years.(false)b.He is an unlucky boy.His mother has been dead for several years.(true)a.He has joined the League since he came to the school.(false)b.He has been a league member
8、since he came to the school.(true),can you distinguish?,has gone to,have gone to,have been to,been to,been in,has been,Correcting,1.I have borrowed the book for 3 months.2.My bother has joined the army since he was 18.3.Jack and Tom have lived here since 5years.4.The film has been on since I have co
9、me to the cinema.5.When has Mr.Li caught a bad cold?,have kept,has been in/been a member of the army,since 5 years ago/for 5 years,came,did,catch,6.Ten years have passed since they got married.7.Jim has gone to Beijing for 2 years.8.What time have the factory opened?9.I have gone to Chunhua Middle S
10、chool twice.,has,has been in,did,open,been to,五 现在完成时和一般过去时的区别：,现在完成时:强调这一动作产生的结果对现在的影响或结果，与现在有关。一般过去时:仅表示在过去某一时刻曾发生过这一动作，与现在无关。,他已学英语五年了。,He has studied English for five years.,他曾学过五年英语。,He studied English for five years.,（说明他还会继续学下去）,（只说明他过去学过五年英语，但现在不学了。）,Ive lived here for ten years.我在这里住了10年。(现
11、在仍住这儿)I lived here for ten years.我在这里住过10年。(现在不住这儿了)He has bought a house.他买了一栋房子。(现在已拥有这房子)He bought a house ten years ago.他10年前买了一栋房子。(现在是否仍拥有这房子不清楚),一般过去时与现在完成时有一些明显的时间状语。,遇到yesterday,Last year,in May,in+过去某一年，two days ago,the other day,just now等就用一般过去时(表过去的时间),当有 so far,in/during/over the past/l
12、ast few days(在过去/最近的几年里)，since接过去时间状语或过去时的句子等常用现在完成时(不能与确定的时间),四 特殊句型1.It is/has been+一段时间+since+句子(一般过去时)=一段时间+has passed+since+句子(一般过去时),e.g.It is five years since I joined the army.=Five years has passed since I joined the army.,这本书我借了一个月了。,I borrowed this book a month ago.(一般过去时),It is/has been
13、a month since I borrowed the book.(句型1 its/been+时间 since+一般过去),I have kept the book for a month./since a month ago.(现在完成时),A month has passed since I borrowed the book.(句型2 时间+passed since+一般过去时),2.被形容词最高级所修饰的名词后的定语从句(that 引导)中，一般用现在完成时态。,This is the most delicious food(that)Ive ever eaten.这是我所吃过的最美
14、味的食物。She is the most beautiful girl(that)Ive ever seen.她是我见过的最美丽的姑娘,3.It is the first/second time+现在完成时This is+the最高级+名词+that+现在完成时,This is the first time(that)Ive heard him sing.这是我第一次听他唱歌。It is the first time that I have seen such a beautiful girlIt was the third time that the boy has been late.This is the best film that Ive(ever)seen.这是我看过的最好的电影。,典型例题(1)-Do you know our town at all?-No,this is the first time I _ here.A.was B.have been C.came D.am coming(2)-Have you _ been to our town before?-No,its the first time I _ here.A.even,come B.even,have comeC.ever,come D.ever,have come,
