初中英语现在完成时精讲精练PPT演示课件.pptx

1、现在完成时,1,.,目 录,CONTENTS,一、现在完成时的构成 二、现在完成时的完成意义 三、现在完成时的持续意义,2,.,现在完成时的构成,3,.,现在完成时的构成,We have begun our class. We havent begun. Have you begun your class? Yes, we have. No, we havent.,肯定：have / has done 否定：have / has not done 疑问：have / has + 主语 回答：Yes, sb. have / has. No, sb. havent / hasnt.,4,.,现在完

2、成时的完成意义,5,.,什么是完成意义？,完成意义：动作发生在过去，结果或影响在现在。,time,过去,现在,将来,I have cleaned the room.,打扫房间,打扫房间的结果，影响在现在,结果：房间现在还干净，不用打扫了。,6,.,什么是完成意义,动作发生在过去，结果或影响在现在。,John has eaten up the fruit in the fridge.,Alice has opened the window.,Linda has found her book.,结果：冰箱里没有水果了。,结果：窗子的状态是打开的。,结果：不需要再找了。,7,.,1. I dont

3、feel very well, Jack. Im afraid you _ me your cold.,give had given have given would give,真题再现,8,.,2. -Look! Someone _ the classroom. -Well, it wasnt me. I didnt do it.,is cleaning was cleaning has cleaned will clean,真题再现,9,.,现在完成时意义与一般过去时的区别,完成意义：动作发生在过去，结果或影响在现在。,time,一般过去时：动作发生在过去，对现在没有影响。,过去,现在,将

4、来,I cleaned the room yesterday.,打扫房间,10,.,1. Paula is pleased that she _ her lost watch.,finds found has found will find,真题再现,11,.,2. I cant find my notebook anywhere. Im afraid I _it.,lose lost have lost was losing,真题再现,12,.,already, just, yet, ever, never,already “已经”；just “刚刚” 用于肯定句中 Linda has al

5、ready eaten two apples. Linda has just eaten a banana.,yet “还未”；“已经” 用于否定句，疑问句句尾 Alice has not eaten any chocolate yet. Has Alice eaten any chocolate yet?,13,.,already, just, yet, ever, never,ever “曾经” 用于疑问句 Has John ever eaten American chocolate? Have you ever been to Beijing?,never “从不” Tom has ne

6、ver been to Beijing.,14,.,1. -_ you ever _ Han Hong sing live? -Of course. A couple of times in different cities.,Have; seen Did; see Do; see Are; seeing,真题再现,15,.,2. -Would you like another cake? -Another cake? I _ my first one yet.,didnt have dont have havent had hadnt had,真题再现,16,.,现在完成时的持续意义,17,

7、.,什么持续意义？,time,动作在过去开始，一直持续到现在，而且很有可能持续下去。,I have lived here for two years.,2年前,今天,have lived,18,.,for 和 since,for + 时间段 since + 过去的时间点；一般过去时的句子,She has worked here for 5 years. She has worked here since 5 years ago. She has worked here since she graduated from college.,19,.,for 和 since,用for 或since填

8、空,Mr. Brown has had his TV _ 15 years. Ive taken driving lessons _last month. My sister has had her cell phone _a month . My friends havent visited me _few days ago. We havent used our car _ a long time . She hasnt had a good cup of coffee _years. Tom has worn glasses _he was 7 years old.,for,since,

9、for,since,for,for,since,20,.,延续动词与非延续动词,现在完成时表持续，在肯定句和疑问句中动词要用延续性动词,延续性动词：动作可持续 learn,work,stand,lie,know,walk,keep,wait,watch,sing,read,sleep,live,stay, have,非延续性动词：动作不可持续，只发生在一瞬间 buy, borrow, die, leave, begin, join,21,.,延续动词与非延续动词,1. He has bought the book for two years. 2. He has had the book fo

10、r two years. 3. I have borrowed the book since Monday. 4. I have kept the book since Monday.,22,.,延续动词与非延续动词,leavebeaway borrowkeep buyhave begin/startbeon diebedead finishbeover,leave beawayfrom go(get)out beout puton wear comebackbeback come be join be in+组织机构,非延续性动词变延续性动词,23,.,延续动词与非延续动词,1. They

11、came to our school in 1980. They _ _ _ our school since 1980. 2. The man died five years ago. The man _ _ _ for five years. 3. The meeting began two minutes ago. The meeting _ _ _ for two minutes. 4. We borrowed two books last week. We _ _ the two books for a week.,have been in,has been dead,has bee

12、n on,have kept,24,.,-Mom, I want to watch The legend of Miyue（芈月传）on China 8 tonight. -Oh, dear, it _ for a few minutes. Come on!,has begun will begin has been on will be on,真题再现,25,.,2. William Shakespeare _ for 400 years, but his works still have great influence today.,died was dying has died has

13、been dead,真题再现,26,.,3. This medicine _ millions of peoples lives since it was put into use.,is saving will save has saved had saved,真题再现,27,.,4. Its nice to see you again. We _ each other since 2014.,wont see dont see havent seen didnt see,真题再现,28,.,5. I have been in China _1997.,since for in until,

14、真题再现,29,.,小试牛刀,30,.,1. -What a nice watch! How long _ you _ it? -For just two weeks.,will; buy have; had were; having did; buy,小试牛刀,31,.,2. -Where are the flowers? -You see, someone _them to the window.,moves had moved has moved would move,小试牛刀,32,.,3. -Look at the blue sky! The rain _ -Lets go out for a walk,stops will stop has stopped had stopped,小试牛刀,33,.,4. He _ the city since he graduated from college.,has left left has been away from,小试牛刀,34,.,5. Uncle Liang _ in Haikou since 1980, so he knows a lot about