现在完成时公开课(1).ppt

1、现在完成时,The present perfect tense,Are you hungry now?,Have you had breakfast?,Yes, I have.,I am not hungry now.,No, I havent.,I am very hungry now.,Has your friend had breakfast?,Yes, he/she has.,He/she is not hungry now.,No, he/she hasnt.,He/she is very hungry now.,Can Sarah use chopsticks?,Has she l

2、earned how to use chopsticks?,Yes, she has.,She can use them now.,Who is Jerry and who is Tom?,Have you seen this Movie？,Yes, I have,I know Jerry is the mouse and Tom is the cat.,Has your friend seen this movie?,Yes, he/she has.,He/she knows Jerry is the mouse and Tom is the cat.,Who is the man?,Hav

3、e you seen this movie?,No, I havent seen it.,I know nothing about it.,Has your friend seen this movie?,No, she hasnt seen it.,现在完成时的用法,描述_发生或已经完成的某一动作 对_的影响或结果。,过去,现在,He has had breakfast before.,He/she is not hungry now.,I have had breakfast. I havent had breakfast.,Have you had breakfast? Yes, I h

4、ave. No, I havent.,Has your friend seen this movie?,Yes, she has seen it.,No, she hasnt.,肯定式： 主语+ have/has+过去分词(pp.),否定式： 主语+have/has not+过去分词(pp.),疑问式： Have/Has+主语+过去分词(pp.),1.现在完成时是怎样构成的？,什么情况下使用has ?,2. 什么情况下使用has ?,主语是第三人称单数时， 使用has.,He has finished his homework. She has lived in Conghua for a l

5、ong time. Eric has studied a little Chinese. My computer has stopped working.,其他情况下使用have,I have seen this film. You have had breakfast. We have begun our class. They have made many new friends.,3. 过去分词的构成,主语是第三人称单数时， 使用has.,ed,visited,visited,d,lived,lived,i,ed,study,studied,cried,cried,辅音,stop,sto

6、pped,drop,ed,dropped,过去分词的规则变化（与过去式基本相同）,不规则变化见 “Book A P141-142”,巩固练习：请写出以下动词的过去式和过去分词,look see invite do make open worry put,looked looked,invited invited,did done,saw seen,made made,opened opened,worried worried,put put,I, visit,the Great Wall,I have visited the Great Wall.,I have not visited the

7、 Great Wall.,否定句,疑问句,Have you visited the Great Wall?,Yes, I have.,No, I havent.,We have travelled by plane.,we, travel by plane,否定句:,一般疑问句:,We have not travelled by plane.,Have you travelled by plane?,肯定/否定回答：,Yes, we have. /No, we havent.,否定句:,一般疑问句:,肯定/否定回答：,finish her homework,She has finished h

8、er homework.,She hasnt finished her homework.,Has she finished her homework.,Yes, she has. /No, she hasnt.,否定句:,一般疑问句:,肯定/否定回答：,play basketball,They have played basketball.,Have they played basketball?,They havent played basketball.,Yes, they have. No, they havent.,Complete the sentences 1. He _ alr

9、eady_ the exam. ( pass) 2. They _ already _ some trees. (plant) 3. It _ already _. ( rain) 4. We _ already _ the broken doors. ( fix) 5. I _ _ some furniture. ( buy) 6. We _ already _ the kitchen. ( clean) 7. John _ _ the yard. ( sweep) 8. Students _ _ knowledge from the experience? ( learn),has pas

10、sed,have planted,has rained,have fixed,have bought,have cleaned,has swept,have learnt,Fengyun Mountain,Canton tower,Conghua hot spring,Disneyland,S1: Have you visited /been to? S2: Yes, I have./ No, I havent. S3: Which place has your friend visited? S4: She/ He has visited She/ He has been to,现在完成时的

11、用法,表示过去发生或已经完成的某一动作 对现在的影响或结果。,1)他去过北京。(他现在了解北京) He has been to Beijing.,2)我已经开了门。 (门是开着的) I have already opened the door.,常与already(已经)、yet(还没有)、 ever(曾经)、never(从不)等时间 状语连用。,already（已经） （用于肯定句，可放在句中或句末。） I have already opened the door. I have opened the door already. yet（仍然，还没有） （用于否定句或一般疑问句，放句末。)

12、They havent finished their homework yet. Have you finished your homework yet? ever （曾经） Have you ever visited that school? never（从不） I have never read that book.,they, already,They have already danced.,dance,he, already,He has already sung this song.,sing this song,she, not, yet,She has not cleaned

13、the floor yet.,clean the floor,he, not, yet,He has not finished the picture yet.,finish the picture,they, not, yet,They have not swum yet.,swim,she, never,She has never learnt English.,learn English,he, never,He has never changed a light bulb.,change a light bulb,he, ever? yes,Has he ever played bas

14、ketball? Yes, he has.,play basketball,she, ever? yes,cook,Has she ever cooked? Yes, she has.,they, ever? no,take part in the sports meeting,Have they ever taken part in the sports meeting? No, they havent.,she, yet? no,finish her homework,Have she finished her homework yet? No, she hasnt.,单项选择 1.Hav

15、e you locked the door_? already B. yet C. ever D. never 2.Hes never _ the film. A.see B.saw C.seeing D.seen,3. _ you ever _ this pen? It is useful. A. Has, use B. Have, used C. Have, use D. Did, use,5. Li Lei hasnt got up _. A. already B. ever C. yet D. just,6. We _ a junior high school students . A. have became B. have become C. has become D. became,7.Zhao Lan _alre