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1、现在完成时一、 现在完成时态的结构 have /has (助动词)+done(过去分词)说明： 动词的过去分词有规则形式和非规则形式两种，非规则分类：AAA、ABB、ABA、ABC AAA cost-cost-cost，hit-hit-hit，let-let-let，ABB buy-bought-bought，catch-caught-caught， ABA come-came-come，become-became-become ,run-ran-runABC break-broke-broken，fly-flew-flown，ride-rode-ridden ,take-took-taken
2、，二、现在完成时态的基本句式 肯定句：主语+have/has+Vpp+其他否定句：在助动词have/has后加上否定词not一般疑问句：将助动词have或has提到句首，肯定的简略回答是：Yes，主语have/has. 否定的简略回答是：No，主语have/has not.特殊疑问句：特殊疑问词+一般疑问句三、现在完成时态的用法 2、表示过去已经开始，持续到现在的动作或状态，可以和表示从过去某一时刻延续到现在（包括“现在”在内）的一段时间的状语连用,如for+时间段、since+过去的时间点、疑问词how long等。例如： 注意：此种用法中表示持续动作或状态的动词必须是延续性动词（否定句除外
3、）。例如： (1)这本书我已经买了三个月了。 错误：I have bought the book for three months. 正确：I have had the book for three months. (2)你哥哥参军多长时间了？ 错误：How long has your brother joined the army? 正确：How long has your brother been in the army/been a soldier?四、现在完成时态与一般过去时态的区别 3）现在完成时可表示持续到现在的动作或状态，动词一般是延续性的，如live, teach, learn
4、, work, study, know. She joined the League three years ago. (加入的动作不是延续的)She has been in the League for three years (since three years ago). (在团内的状态可延续)She has been a League member for three years (since three years ago).是团员的状态可持续)比较 have/has been to、have/has gone to 和 have been inhave(has) been 表示“曾
5、去过某地，已经从那里回来了”，可以和ever、never、twice等连用。have(has) gone 表示“已经去了某地，在去那里的途中或到达那里还没有回来have(has) been in 表示“在某地呆多长时间”，常与表示一段时间的状语连用，如：since, for, how long 等. 注意：第三人称。He went to Shanghai last week 上周他去了上海He has been to Shanghai. 他(曾经)到/去过上海.(但他人现在肯定不是在上海而是回来了)He has gone to Shanghai. 他已经去上海了.(也许刚动身出发,也许已经到了
6、,也许还在路上,反正他人不在这里)Mr. Brown has been in Shanghai for three days. 布朗先生来上海已经有三天了一、单项选择。 1、Both his parents look sad. Maybe they _whats happened to him.A. knew B. have known C. must know D. will know2、He has _ been to Shanghai, has he ?. already .never .ever . still3、Have you met Mr. Li _？. Just . ago .
7、before .a moment ago4、The famous writer _ one new book in the past two year . . is writing .was writing .wrote .has written5、Our country _ a lot so far . Yes. I hope it will be even _ . has changed ; well . changed ; good . has changed ; better . changed; better6、Zhao Lan _already _in this school fo
8、r two years . was ; studying . will ; study . has ; studied . are; studying7、We _ Xiao Li since she was a little girl . know . had known . have known . knew8、Harry Potter is a very nice film. I _ twice. will see . have seen . saw .see9、These farmers have been to the United States . Really? When _ th
9、ere ? . will they go .did they go . do they go . have they gone 10、_ you _ your homework yet ?Yes. I _ it a moment ago.Did; do; finished .Have; done; finished .Have; done; have finished . will; do; finish11、 His father _ the Party since 1978 .joined . has joined . was in . has been in12、Do you know
10、him well ? Sure .We _ friends since ten years ago . were . have been . have become .have made13、How long have you _ here ? About two months . been . gone . come . arrived14、Hurry up! The play _ for ten minutes . has begun . had begun . has been on . began15、 It _ ten years since he left the army . I
11、s . has . will . was16、 Miss Green isnt in the office. She_ to the library.has gone . went .will go . has been17、My parents _ Shandong for ten years. have been in . have been to. have gone to . have been18、The students have cleaned the classroom, _? A. so they B. dont they C. have they D. havent the
12、y19、 has Mr. White been a member of Greener China since he to China?A. How soon, comes B. How often, got C. How long, came D. How far, arrived 20、 His uncle for more than 9 years.A. has come here B. has started to work C. has lived there D. has left the university二、句型转换。1、He has never surfed, _ ?（改成
13、反意疑问句） 2、They have been here since 2000. (提问) _ have they been here?3、The old man _ last year. He _for a year. (die) （动词填空）4、This factory opened twenty years ago.(同义句转换) This factory _ for twenty years.5、Miss Gao left an hour ago. (同义句转换)Miss Gao_ an hour ago.6、Her mother has been a Party member for three years .（同义句） Her mother _ the Party three years _ .7、The bus has arrived here. It arrived ten minutes ago. (把两个句子合并成一个句子) _ A） 用have(has) been 或have(has) gone 填空。A: Where _ Li Fei _?B: He _ to Hainan Island.A: How long _ he _ there
