1. The Present Perfect Tense in Use 右外 王慧殊

2. ProjectsWhat have they done ？ Effects Tree Planting Planted about 30 trees 1. making school look attractive 2. helping the environment Car Poolsorganized car pools reducing the number of cars coming to school The environmental projects of the schools:

3. 现在完成时： 1. 构成： 2. 意义： 3. 时态属性： 1. So far they have planted about 30 trees. They are making the school look more attractive and helping the environment. 2. They have organized car pools and they have reduced the number of cars coming to school.

4. How many units have you learned in this book so far? We have learned 4 units so far. Which lesson have you just learned? Which lesson have you already learned? Which lesson haven’t you learned yet? We have just learned lesson 40. We have already learned lesson …. We haven’t learned lesson … yet. We are doing homework of it. We learned it a few days ago. We are going to learn it next week.

5. We have just learned lesson 40. We have already learned lesson 32. We haven’t learned lesson 42 yet. We have learned 4 units so far.

6. so far, just, already ， yet 在现在完成时中的用法 1. 相同点： so far, just, already ， yet 均用于现在完成时中。 We have just learned lesson 40. We have already learned lesson 32. We haven’t learned lesson 42 yet. We have learned 4 units so far. (1). 句中的位置： so far 句首或句末 just ， already 句中 助动词 have/has 后，动词过去分词前 yet 句末 2. 区别：

7. (2). 含义： “ 迄今为止 ” 表示到现在为止完成的 强调过去到现在的一段时间 “ 刚刚 ” 表示刚刚完成 强调距现在时间较近 “ 已经 ” 表示已经完成 “ 仍 ” 表示尚未完成 强调距现在时间稍远些 so far just already yet

9. 观察并选出含有现在完成时的句子： 1. So far they have planted about 30 trees. 2. They plant trees every year. 3. They planted trees yesterday. 4. They are planting trees now. 5. They were planting trees when the earthquake( 地震 ) happened. 6. They will plant more trees next year. 7. They have already planted 30 trees. 8. They have just planted 30 trees near the school gate. 9. Have you planted the trees around your school yet? 10. What have they done so far? 1. So far they have planted about 30 trees. 7. They have already planted 30 trees. 8. They have just planted 30 trees near the school gate. 9. Have you planted the trees around your school yet? 10. What have they done so far?

10. 1. I hope I _________ no mistake in my work so far. A. make B. am making C. have made D. was making 2. ----________ your homework yet? ----Not yet, I ________it. A. Have you finished; am doing B. Did you finish; did C. Did you finish; am doing D. Have you finished; did 3. ---- Are they still living in the old house? ---- No, They _________ to a new house. A. are moving B. will move C. have already moved D. has already moved 4. ---How can you watch TV so soon, Tom? ---- I ___________ my homework. A. finish B. finished C. have finished D. has finished 根据句意，选出正确答案。

11. 1.I hope I _________ no mistake in my work so far. A. make B. am making C. have made D. was making 2. ----________ your homework yet? ----Not yet, I ________it. A. Have you finished; am doing B. Did you finish; did C. Did you finish; am doing D. Have you finished; did so far yet

12. 3. ---- Are they still living in the old house? ---- No, They _________ to a new house. A. are moving B. will move C. have already moved D. has already moved 4. ---How can you watch TV so soon, Tom? ---- I ___________ my homework. A. finish B. finished C. have finished D. has finished

13. 用动词的适当形式填空。 1. Look, the children _________ basketball on the playground. (play) 2. He ____________ to the radio when I came in. (listen) 3. I can ’ t find my pen. ______anyone ______ it? (take) 4. I _________ my bike, so I have to walk to school. (lose) 5. He ______ down and began to read his newspaper. (sit) 6. He is very hungry. He __________ anything for three days. (not eat) 7. "When ______ you ______ the car?" "In 1998." (buy) 8. What ______ you ______ at five yesterday afternoon? (do)

14. 1. Look, the children _________ basketball on the playground. (play) 2. He ____________ to the radio when I came in. (listen) 3. I can ’ t find my pen. ______anyone ______ it? (take) 4. I _________ my bike, so I have to walk to school. (lose) are playing was listening Has taken have lost

15. 5. He ______ down and began to read his newspaper. (sit) 6. He is very hungry. He __________ anything for three days. (not eat) 7. "When ______ you ______ the car?" "In 1998." (buy) 8. What ______ you ______ at five yesterday afternoon? (do) sat hasn’t eaten did buy weredoing

16. 阅读短文，选出正确答案。 1. The taxi in the story is a ___________. A. motorcycle B. car C boat D. plane 2. The first sentence suggests( 暗示 ) that the whole story is mainly about ______. A. Captain Ben ’ s past service B. Captain Ben ’ s present service C. Captain Ben ’ s passengers D. Captain Ben ’ s experiences 3. The most surprising thing about the taxi is ____________. A. it can land anywhere. B. it can land on snow. C. it can land on water. D. it can land on a ploughed field. 4. Captain Ben _____ unusual requests from the passengers so far. A. has refused all of B. has refused most of C. has accepted all of D. has accepted most of 5. From the story, we can learn that the unusual things in the story include everything except____. A. the “ taxi ” B. Captain Ben’s service C. the number of seats in the “ taxi ” D. the businessman ’ s request

17. 1. The taxi in the story is a ___________. A. motorcycle B. car C. boat D. plane 2. The first sentence suggests( 暗示 ) that the whole story is mainly about ______. A. Captain Ben ’ s past service B. Captain Ben ’ s present service C. Captain Ben ’ s passengers D. Captain Ben ’ s experiences The 'taxi' is a small Swiss plane called a 'Pilatus Porter'. Captain Ben has bought an unusual taxi and has begun a new service.

18. 3. The most surprising thing about the taxi is ____________. A. it can land anywhere. B. it can land on snow. C. it can land on water. D. it can land on a ploughed field. The most surprising thing about it, however, is that it can land anywhere: on snow, water, or even on a ploughed field.

19. 4. Captain Ben _____ unusual requests from the passengers so far. A. has refused all of B. has refused most of C. has accepted all of D. has accepted most of His first passenger was a doctor who flew from Birmingham to a lonely village in the Welsh mountains. Once he landed on the roof of a block of flats and on another occasion, he landed in a deserted car park. Ben has just refused a strange request from a businessman.

20. 5. From the story, we can learn that the unusual things in the story include everything except ______. A. the “ taxi ” B. Captain Ben’s service C. the number of seats in the “ taxi ” D. the businessman ’ s request

21. 3. Ben has just refused a strange request from a businessman. 划出文中含有现在完成时的句子。 1. Captain Ben has bought an unusual taxi and has begun a new service. 2. Since then, he has flown passengers to many unusual places.

22. 1. 用 so far, just, already, yet 各造 5 个现在完 成时的句子； 2. 完成一篇阅读。 homework