初中英语现在完成时精讲精练通用PPT课件

1、现在完成时目 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现在完成时的构成现在完成时的构成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. 现在完成时的完成意义什么是完成意义？完成意义：动作发生在过去，结果或

2、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。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。1. I dont feel very well, Jack. Im afraid you _ me your cold.give had gi

3、venhave givenwould give真题再现2. -Look! Someone _ the classroom. -Well, it wasnt me. I didnt do it.is cleaningwas cleaninghas cleanedwill clean真题再现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。过去现在将来I cleaned the room yesterday.打扫房间1. Paula is pleased that she _ her lost watch.findsfo

4、undhas foundwill find真题再现2. I cant find my notebook anywhere. Im afraid I _it.loselosthave lostwas losing真题再现already, just, yet, ever, neveralready “已经”；just “刚刚”用于肯定句中Linda has already 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 A

5、lice eaten any chocolate yet?already, just, yet, ever, neverever “曾经”用于疑问句Has John ever eaten American chocolate?Have you ever been to Beijing?never “从不”Tom has never been to Beijing. 1. -_ you ever _ Han Hong sing live? -Of course. A couple of times in different cities.Have; seenDid; seeDo; seeAre;

6、 seeing真题再现2. -Would you like another cake? -Another cake? I _ my first one yet.didnt havedont havehavent hadhadnt had真题再现现在完成时的持续意义什么持续意义？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 livedfor 和 sincefor + 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

7、 worked here since 5 years ago.She has worked here since she graduated from college.for 和 since用for 或since填空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 l

8、ong time . She hasnt had a good cup of coffee _years. Tom has worn glasses _he was 7 years old. for since forsinceforforsince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, beg

9、in, join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 for two years.3. I have borrowed the book since Monday. 4. I have kept the book since Monday. 延续动词与非延续动词leavebeawayborrowkeepbuyhavebegin/startbeondiebedeadfinishbeoverleave beawayfromgo(get)out beoutputon wearcomeback

10、bebackcome be join be in+组织机构非延续性动词变延续性动词延续动词与非延续动词1. They 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

11、two books for a week.have been in has been dead has been on have kept-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 begunwill beginhas been onwill be on真题再现2. William Shakespeare _ for 400 years, but his works still have great influen

12、ce today.diedwas dyinghas diedhas been dead真题再现3. This medicine _ millions of peoples lives since it was put into use.is savingwill savehas savedhad saved真题再现4. Its nice to see you again. We _ each other since 2014.wont seedont seehavent seendidnt see真题再现5. I have been in China _1997.sinceforinuntil真题再现小试牛刀1. -What a nice watch! How long _ you _ it? -For just two weeks.will; buyhave; hadwere; havingdid; buy小试牛刀2. -Where are the flowers? -You see, someone _them to the window.moveshad movedhas movedwould move小试牛刀3. -Look at the blue sky! The rain _ -Lets go out for a walkstopswill stophas