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江苏省常州市西夏墅中学高中 Unit1 Tales of the unexplained Grammar and usage教学设计1 牛津译林版必修2





元:Unit 1 Tales of the unexplained

块:Grammar and usage 1

Thoughts on the design: Learn the grammar Present perfect tense and Present perfect continuou

s tense. Teaching objectives: 1. Learn how to form and use the present perfect tense. 2. Understand when the present perfect continuous tense is used in sentences. Teaching procedures: Step 1 Lead- in Go over the news story on Page 2 and find the sentences using the present perfect tense. Please explain why the tense is used in these sentences. Step 2 Present perfect tense 1. The form of the present perfect tense: has/have done. 2. Talk about the uses of the present perfect tense. A. We use the present perfect tense to talk about things that happened in the recent past, but are connected to the present. 表示过去发生的事对现在仍有影响。 The disappearance of Justin has made Kelly very unhappy. (Justin 在过去失踪,但 Kelly 至今仍旧为他的失踪感到不高兴。) B. We also use the present perfect tense to talk about something that started in the past, and is still happening now. 表示过去开始的动作一直延续到现在。 I have not seen Justin since last Friday night. (从上周五晚上到现在一直都没有见 到过。) C. We use the present perfect tense when the exact time of an action is not clear o r important. We use it with time exp ressions such as: already ever for just lately never recently since yet Exercise: Complete the following sentences with the proper tense. (1) We have studied (study) E nglish for about five years. (2) They have lived (live) in the south since their daughter was born. (3) I have read (read) your article three times. It’s well written. (4) The student has finished (finish) her homework already. (5) Eric has just gone (go) back to his hometown. We use already for affirmative statements and yet for negative statements. We use for + a period of time and since + a point in time. D. We use the present perfect tense to talk about actions that were completed only a short time ago. In this case, just is used. Pay attention to the position of just. The police have just finished searching the area. E. We can also use the present perfect tense for repeated action s, that is, we use the present perfect tense with the time expressions once/twice/three times?

3. Read the di ary entry and then complete it using the correct forms of the verbs in brackets. Answers: (1) saw (2) has visited (3) loves (4) hasn’t visited (5) has swum (6) has never met (7) has dived (8) has found (9) hasn’t found (10) Has, been Step 3 Present perfect continuous tense 1. The form of the present perfect con tinuous tense: have / has been doing 2. Talk about the uses of the present perfect continuous tense A. We sometimes use the Present perfect continuous tense to talk about actions that started in the past and are still continuing. 表示过去开始的动作一直延续到现在 并仍在继续之中。 I have not been sleeping well since I returned home. “我”回家后一直都没有睡好,现在也没有睡好。 B. We also use the present perfect continuous tense to talk about actions that have just finished but are still connected to the present in some way. 表示过去开始 的动作刚结束并在某种情况下与现在有关联。 Kell y:Sorry I'm late.Have you been waiting long? Sally:Yes.I have been waiting for an hour. 凯利刚到,对方虽然不再等了,但已一直等到现在。 3. Fill in the missing words on page 9 Answers: (1) have been talking (2) have been taking (3) have been studying (4) have seen (5) have been writing Step 4 Homework 1. Prepare Grammar and usage on page 10-11. 2. Finish Part C1 and C2 on page 88 in Workbook.


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