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牛津版8B Unit2教案






教学内容:牛津英语 8B Unit 2 第 6 课时(Grammar 第 2 课时) 教学目标:1. 加深对现在完成时的理解
2.进一步区分一般过去时和现在完成时的用法 3.理解短暂性动词和延续性动词的不同用法,以及它们之间的转换

重点难点:短暂性动词和延续性动词的不同用法,以及它们之间的转换 教学过程:
Step 1 复习 回顾已经学过的有关现在完成时的知识,要求同学们能说出: 1.现在完成时的构成: 肯定式:I/We/you/they have + been/ worked she/he/it has + been/worked 否定式:have not +been/worked has not + been/worked 疑问式:Have +主语+been/worked ?? Has + 主语+ been/worked?? 2.现在完成时的用法 (1)表示过去发生的某一动作对现在生成的影响或结果。 如:He has read the book.他已经读过这本书了。 “读书”是发生在过去的动作,对现在造成的结果是“读过了” 。 (2) 表示动作过去已经开始,持续到现在,可能还要继续下去。这时往往与表示一 段时间的状语连用。 如:He has worked for more than three years. 他工作三年多了。 I have been in Suzhou for ten years. 我来苏州已经十年了。 3.have/has been in, have/has been to 和 have/has gone to 的区别 have/has been in 表示 “在某地呆了多久了” , 可以与表示一段时间的状语连用。Have/has been to 表示“曾到过某地(已回来) ” ,不能与一段时间的状语连用。两者表示的意义不 同,所以跟的时间状语也不同。 如:He has been to Guangzhou twice. 他去过广州两次。 He has been in Guangzhou for a long time. 他在广州已呆了很长时间了。 have/has gone to 意为“到某地去了(还没回来) ” ,表示到了某地或正在去的途中。总 之,说话时当事人不在现场,一般不用第一、第二人称代词作句子的主语。 如:—Where is Kate? 凯特在哪儿? —She has gone to the post office. 她去邮局了。 巩固练习: 1. 句型转换 1. He has already finished his homework. ____ he _____ his homework _____? He _____ _____his homework ____. 2. I have never been to the Great Wall. ____ you ____ been to the Great Wall? 3. Simon has worked here ____2 years. Simon has worked here ____ 2 years ago. It ___ 2 years ___ Simon began to work here. 2 years ___ ___ since Simon began to work here.

2. 问题接龙 T, Sa, have you finished your homework? Sa, Yes, I have. I have finished my homework. Sb, have you handed in your homework? Sb, Yes, I have. I have handed in my homework. Sc, have you…… Sc, No, I haven’t. What about you, Sd? Sd, …….. Step 2 导入 T, Now please translate my sentences into English. 1. 两天前我买了一本新字典。 2.这本字典我买了两天了。 Sa. I bought a new dictionary two days ago. T. I have had the dictionary for two days. Step 3 新课 T: 在现在完成时中,延续性动词和 for, since 引导的一段时间 连用,表示从过去某一时间开 始一直延续到现在的情况;在一般过去时中, 短暂性动词和 ago 连用,表示过去某一具体时间发生 的动作,与现在没有什么联系。短暂性动词要换成其相对应的延续性动词才能和表示“一段时间”的状 语连用。 请大家看课本 32 页的表格。并试着用一般过去时改写后面的例句。 S1 He bought this motorcycle two years ago. S2 She borrowed this book three weeks ago. S3 Kitty arrived in Hong Kong tow days ago. S4 She left home a month ago. S5 Simon joined the Football Club last year. S6 ……. T Now, let’s complete the conversation on page 33. I’ll ask two students to come to the blackboard to write your answers on the blackboard. Who want to have a try? ……… T Now, let’s check your work together. T. Any questions? If you have no other questions, please read the dialogue in pairs. Later, I will ask some pairs to act out. Ss Read and act out Step 3 练习 (1)He came to our village two years ago.=He our village since two years ago. (2)He left home three days ago=He home for 3 days. (3)I bought the watch 2 weeks ago=I the watch since 2 weeks ago. (4)It is 5 days since I borrowed the book=I the book for 5 days. (5)The film has begun= The film for half an hour. (6)I got to know him 10 years ago=I him for 10 years. (7)There is a factory=There a factory for 20 years. (8)Our school opened in 1960=Our school since 1960. Step 4 小结 T.Who can tell me what we have learned in this class? S1. ….. S2. ….

Step 5 作业 一.选择题 1. — Oh, Mrs. King, your necklace looks nice. Is it new? — No, I ____ it for two years. A. had B. have had C. bought D. have bought 2. His grandfather _____ for over two years. A. has died B. has been dead C. has dead D. died 3.Uncle Li can speak English very well because he _____ England for 5 years. A. has gone to B. has been to C. has come to D. has been in 4. — Where is Mr. Zhang? — He _____ London. A. has been to B. has been C. has gone D. has gone to 5. — _____ to the United States? — No, never, but I went to Canada a few years ago. A. Have you been B. Have you gone C. Did you go D. Will you go 6. I haven’t seen you _____ last Friday. A. for B. since C. from D. on 7. — John, you ____ the computer game for two hours. It’s bad for your eyes. Stop, please! — OK, Mum. A. played B. have played C. were playing D. play 8.I won’t go to the concert because I _____ my ticket. A. lost B. don’t lose C. have lost D. will lost 二.用所给动词的适当形式填空 1. It (rain)for a week. 2. I don’t know this woman. I (meet, never)her. 3.-Let’s go to the cinema.-No, I (see, already)the film. 4. We (finish, not)our homework yet. Will you wait a minute? 5. John (come, not)yet. He will be back in a minute. 6. Mr. Green often goes to America. In fact, he (be)there ten times. 7. -Where’s John? -He just (go)to the teachers’ office. 8. She (study)English since she was ten. She (begin)to study English when she was ten. 9. Jim isn’t here. He (go)to the library. He (go)there an hour ago. 10. He (travel, never)on a train in her life. 三.句型转换 1.He died two years ago.(改为同义句) He for two years. 2.I bought the pen three hours ago.(改为同义句) I (有)the pen for three hours. 3.I joined the army three years ago. (改为同义句) I a member of the army three years. I the army for three years. It three years he the army. 4. She has worked in the school for three years. (改为同义句) She has the school three years ______. 5. I borrowed the book three days . (同义句) I (借) the book for three days.


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