1、现在完成时的持续型用法现在完成时的持续型用法现在完成时还可表示过去某一时间开始现在完成时还可表示过去某一时间开始并一直持续到现在并一直持续到现在(包括包括“现在现在”在内在内)的的动作或状态，该用法中的动词多是延续动作或状态，该用法中的动词多是延续性动词，常见的时态标志词有性动词，常见的时态标志词有since,for等。等。1.since意为意为“自从自从以来以来”,它既可作它既可作介词，也可作连词。作介词时介词，也可作连词。作介词时,后接表后接表示过去的时间点示过去的时间点,表示某事开始的时间；表示某事开始的时间；作连词时作连词时,引导时间状语从句引导时间状语从句,从句常用从句常用一般过去时
2、。一般过去时。如：如：We have been here since last Sunday/two years ago.Mr.Jones has worked here since he was twenty-five.2.for作介词，后接一段时间，表示作介词，后接一段时间，表示一个动作或一种状态已经持续了多一个动作或一种状态已经持续了多长时间。长时间。如：如：I have studied here for three years.She has been away for five days.注意：注意：1.对对since和和 for引导的时间状语提问时引导的时间状语提问时,常用常用ho
3、w long。如：如：Jane has learned to play the piano since two years ago.(对划线部分提对划线部分提问问)How long has Jane learned to play the piano?2.在现在完成时中，含有在现在完成时中，含有for和和since的的句子可以相互转换。句子可以相互转换。如：如：They have lived here for five years.=They have lived here since five years ago.3.在现在完成时中，表示短暂意义的在现在完成时中，表示短暂意义的动词动词(如如
4、come和和see)在肯定句和一般在肯定句和一般疑问句中不能和表示一段时间的时疑问句中不能和表示一段时间的时间状语连用，但在否定句中是可以间状语连用，但在否定句中是可以的。的。如：如：Mike has come to London for three weeks.()They havent seen each other for ages.()1.How long have you had that bike over there?Ive had it for three years.2.How long has his son owned the train and railway set?
5、Hes owned it since his fourth birthday.3.Have you ever played football?Yes,I did when I was little,but I havent played for a while now.4aRewrite the sentences using for or since.1.Jim is in Japan.He arrived there three days ago.2.They are very hungry.Their last meal was ten hours ago.They have been
6、hungry for ten hours/since ten hours ago.Jim has been in Japan for three years.3.I have a camera.I bought it in 2009.4.I know Anna.I first met her three years ago.5.Linda is ill.She became ill on Monday.I have had a camera since 2009.I have known Ann for three years/since three years ago.Linda has b
7、een ill since Monday.短暂性短暂性(短语短语)动词与延续性动词与延续性(短语短语)动词动词和与表示状态的短语之间的转化和与表示状态的短语之间的转化1.有些短暂性有些短暂性(短语短语)动词可转化为相应动词可转化为相应的延续性的延续性(短语短语)动词。动词。常见的有：常见的有：become be borrow keep buy have/own catch a cold have a cold come stay put on wear go to sleep sleep move to live inWork in pairs2.有些短暂性有些短暂性(短语短语)动词可转化为表
8、示动词可转化为表示状态的短语。状态的短语。常见的有：常见的有：leave be away begin/start be on die be dead finish be over join be in/be a member of fall asleep be asleep marry be married come/arrive here be here1.When _ you _ the new bike?I _ it for 2 days.A.did,have;bought B.did,buy;have had C.did,buy;have bought(2017 湖北恩施湖北恩施)【中
9、考链接中考链接】2.The TV program Voice of Youth is really great.I think so.It _ the hearts of lots of fans since it started.A.lose and touch B.won and touched C.has won and touched D.has lost and hit(2018 广东汕尾广东汕尾)3.My grandparents _ in that city since 2008.A.will live B.live C.have lived D.were living(2016
10、 北京北京)4.We have been friends _.A.last year B.one year ago C.since we met last year D.when we met last year(2017 广西南宁广西南宁)5.How happy the grandparents are!Yes,they _ for fifty years.A.have been married B.have married C.have got married D.married(2018 四川眉山四川眉山)6.What age did you leave home?I left home
11、 at 18,Neil.I _ your city for five years.A.have gone to B.have been to C.have been in D.have come to(2017 江苏扬州江苏扬州)7.Amy,can we give away these soft toys?We _ them for many years.Mom,but I want to keep the bear.A.bought B.had C.have bought D.have had(2017 湖北黄冈湖北黄冈)4bFill in the blanks with the corre
12、ct forms of the verbs in brackets.1.I _(never be)to the water park before.I want to _(go)next month before the weather gets too cold.2.They _(never own)any pets,but they _(always want)to have a dog.have never beengohave never ownedhave always wanted3.We _(have)a piano since last November.We _(buy)it
13、 from the Li family when they moved to the US last year.4.Cathy and Amy _(not be)back to their hometown for two years.They _(miss)their hometown a lot and hope to visit the place next year.have hadboughthavent beenmiss5.This museum _(be)here for over 20 years.It _(be)one of the oldest buildings in t
14、his small town.has beenis4cFill in the questions and ask two students.Then complete the chart.1.Do you have a(n)_?How long have you had it?2.Do you own a(n)_?How long have you owned it?ThingsHow longTonyfavorite book for two yearsbasketballsince he was 10 years oldStudent 1Student 2According to 4a write a compositionTalk a bout your favourite animal or toy1.Whats your favourite toy or animal?2.How long have you had it?3.Who gave it to you?4.Why do you like it?5.How are you going to deal with it when you grow up?1.Review Grammar.2.Finish the exercises in the workbook.
