2012初中英语语法复习——现在完成时课件

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1、现在完成时现在完成时He is full.He has had a big breakfast.1.过去某一时间点发生的动作对现在产生影响。过去某一时间点发生的动作对现在产生影响。功能：功能：2.过去某一时间点发生的动作持续过去某一时间点发生的动作持续 到现在或还将持续下去。到现在或还将持续下去。have/has+done 助动词助动词（可以帮助（可以帮助构成肯定、疑问和构成肯定、疑问和否定句）否定句）1.He has cleaned his room.(写一个一般疑问句）写一个一般疑问句）Has he cleaned his room?2.She has lived in London fo

2、r four years.(划线部分提问）划线部分提问）How long has she lived in London?3.He has been to China,_ _?（写出反义疑问句部分）（写出反义疑问句部分）hasnt he 4.They have come back from work.(写否定句）写否定句）They havent come back from work.What are the key words for the Present Perfect Tense?A:_ your brother _ his homework yet?(finish)B:Yes,he

3、s already done it.Has finished yet already 注意：注意：already 用于肯定句，用于肯定句，yet 用于疑问句和否定句中用于疑问句和否定句中A:_ you ever _ to the park?(be)B:No,never.Have been yet already ever never 注意：注意：ever 曾经曾经 用于疑问句中用于疑问句中 never 从不从不 带有否定意义带有否定意义I _ just _ the desk,you can take it to your classroom.(mend)have mended yet ever

4、 never just already Just 刚刚刚刚 与现在完成时连用与现在完成时连用 一般置句中一般置句中Just now 刚才刚才 与一般过去时连用与一般过去时连用Tom _ in the factory since he left school ten years ago.(work)has worked yet ever never since already since 后面带后面带过去时间过去时间或或有一般过去时有一般过去时的句子的句子A:How long _ you _ in this school?(teach)B:For 6 years.have taught yet

5、ever never since for already +一段时间一段时间We _ only _ 100 trees so far.(answer)have planted yet ever never since for just already so far 到目前为止到目前为止 yet ever never since for just before already so far in the past 10 years twice 也可以是其他表示次数的词也可以是其他表示次数的词how long He has bought the book.He has bought the boo

6、k for a week.He has had the book for a week.buyhavecome/go/get tobe injoin be inbe a memberleave be away borrow keep begin be on finish be over die be dead return be back She has bought the computer for two years.hadbuyhave/has hadHow long have you come to the United States？been income tohave/has be

7、en inbuyhave/has hadAnn has gone to China since three months ago.been income tohave/has been inbuyhave/has hadgo tohave/has been inMy brother has joined the army for five years.been inbeen a soldier come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been i

8、nhave/has been a soldier I have left Shanghai for 3 days.been away for 3 e tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away I have borrowed the dictionary since 3 days ago.kept come tohave/has been inbuy

9、have/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept The film has begun for 10 minutes.been on come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has b

10、een a soldier leave have/has been away borrow have/has kept begin have/has been on The concert has finished for half an hour.been over come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/ha

11、s kept begin have/has been on finish have/has been over His dog has died for two years.been dead come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept begin have/has been on finish h

12、ave/has been over die have/has been dead 只用于第三人称只用于第三人称 have known knew saw have lost have did move lived did has finished see saw method 2:It is+时间段 since+一般过去时的句子.1.他的爷爷已经去世2年了。2.Nick 参军3年了.3.他离开深圳好长时间了。4.这本书我已借了4个月了.It is 2 years since his grandpa died.It is 3 years since Nick joined the army.It

13、is a long time since he left Shenzhen.It is 4 months since I borrowed the book.3.表示一直持续到现在的状态表示一直持续到现在的状态 The meeting has lasted five days.4.在时间状语从句在时间状语从句,条件状语从句或让步状语从句中表达将来某时已条件状语从句或让步状语从句中表达将来某时已经完成的动作经完成的动作When you have learned English,you will find it a bridge to so much knowledge.Well start at

14、 six if it has stopped raining by then.这里的现在完成时强调从句动作在主句动作之前完成这里的现在完成时强调从句动作在主句动作之前完成,如果两个如果两个动作同时或几乎同时发生动作同时或几乎同时发生,则不必用完成时则不必用完成时.试比较试比较:Ill let you know as soon as I hear from her.She will call you when she gets home.5.特殊句型特殊句型:Its the first time that have/has done.It has been/is+时间段时间段 +since.This is the best film that I have ever seen.6.短暂性动词的完成时不与时间段连用短暂性动词的完成时不与时间段连用,如需连用可转化成相应的如需连用可转化成相应的