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1、完成時態(tài)的用法1)現(xiàn)在完成時態(tài)表示 過去發(fā)生的動作對現(xiàn)在造成的影響或結果 。 Our teacher has left . We have studied English . I have already finished the homework . He has had his lunch . He has become a doctor .Have / has + 過去分詞1. 構成2. 意義2)某個動作從過去已經開始, 一直持續(xù)到現(xiàn)在, 還有可能持續(xù)到將來,動作的 持續(xù)性要通過一段時間來表示。一段時間的表達方法有 兩 種:For : + 一段時間 for a year for two
2、weeks for three yearsSince :過去的某一時刻, since nine since last week 一般過去時態(tài)的時間狀語從句, since you came. since you got home. ! :for 和since 所引導的時間狀語都表示一段時間. 對劃線部分提問都用 How long .1) He has been away since last week .2)He has been away for one week .對下列劃線部分進行提問。練一練 :結束性動詞不能和表示一段時間的時間狀語連用,但是他可以轉換成相應的延續(xù)性動詞.1. 直接用 延
3、續(xù)性動詞 buy catch(get) a cold borrow Come/go /become put on 2. 轉換成 be+名詞 join the army Join the Party go to school Have have a coldkeep bewearbe a soldierbe a Party memberbe a student3. 轉換成 be + 形容詞或副詞 die finish begin leave be away fall sleep be asleep close be closed4. 轉換成 be + 介詞短語 go to school be i
4、n school join the army be in the armybe deadbe overbe on1.我們買這本書三年了.We have had the book for three years .2.他感冒三天了. He has had a cold for three days.We bought the book three years ago . He caught a cold three days ago.一般過去時態(tài)和現(xiàn)在完成時態(tài)可以構成 同意句3.自從上星期我借的這本書 I have kept the book since last week.4.我成為一個學生兩
5、年多了. I have been a student for over two years. I borrowed the book last week.I became a student two years ago.5.Mr Black死了三年了。Mr Black has been dead for three years.Mr Black died three years ago.6.小名參軍半年了。Xiao Ming has been a soldier for half a year.Xiao Ming joined the army half a year ago.7.我們上了8年
6、學了。We have been students for eight years.8.下課10分鐘了。 The class has been over for ten minutes.9.電影開始了一小時了。 The film has been on for an hour.注:含延續(xù)性動詞的現(xiàn)在完成時的同義句 轉換 。She began to work ten years ago.She has worked since ten years ago.It is ten years since she began to work.Ten years has passed since she b
7、egan to work. She has worked for ten years.Exercises1.Youve never seen such a wonderful film before, _?A havent you B have you C do you D dont you2. -Ann has gone to Shanghai. -So _ her parents. A has B do C did D have3. I have watched the game. -When _ you _ it?A have watched B do watch C did watch
8、 D will watchB D C4. Mr. Green _ in China since five years ago. A lived B has lived C lives D is going to live5. His grandma _ for two years. A died B has been dead C was dead D has died6. Where is Han Mei now? - She _ to Shanghai. She will be back in two days. A has gone B has been C goes D had gone7. -_ to the United States ? - No, never,but I went to Canada a few years ago.8. You havent changed your mind,_? A do you B a
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