八 年级 英语 Unit 8 A1 学案

八年级下英语学案Unit8 SectionA1主备:王晓丽时间：2014.5

【重点语法、句型讲解】

1．现在完成时：

1)含义：表示动作过去发生，但与现在有联系或影响，此时态常与以下时间词连用，如already 已经,yet已经，还，just刚刚,ever曾经,so far到目前为止,before从前,times次数,for+时间段，since 自从…以来,how long多久，never从不，in the past….在过去….

2)．结构：主语+have/has+动词的过去分词（have/has是助动词，没有“有”的意义）

肯定句：She has finished her work. 她完成了她的工作。

一般疑问句：Has she finished her work? _Yes,she has./No,she,hasn’t.

—Have you finished your homework?

—Yes, I have. / No, I haven’t,

否定句: She hasn’t finished her work.

3)．动词的过去分词的构成：规则动词的过去式就是过去分词，不规则动词的过去分词见不规则动词表。

动词过去分词的变化规则：

①一般情况下加-ed；②以-e结尾的，加-d；③以辅音字母加y结尾的，变y为i加-ed；④重读闭音节单词，双写辅音字母加-ed。

4)．现在完成时态与一般过去时的区别：句子中如有yesterday,last,just now,in1999等过去时间词出现就只用一般过去时。

5)．特别提醒：句子中如有when出现，一定不能用完成时.

例题：A:Jack has already read the book, B:When did he read it ? A:Last weekend.

2.Have you read Little Woman yet?你已读过《小妇人》吗？

【要点探究】already 通常用于肯定句中，意为“已经”，位于行为动词之前，be动词、助动词之后。例如：We have already cleaned the classroom. 我们已经打扫了教室。

yet用于疑问句中表示“已经”；用于否定句中表示“还（没）”。

例如：—Has he found his watch yet? —No, not yet.

一、英汉互译。

1.至少__________________________

2.赶快，急忙/快点__________________________

3.在岛上___________________

4.听说____________________

5. 在第5页上__________________

6.把它放下________________

7.读得快__________ 8.What do you think of it?.____________ 9.读完这本书______________________ 10.长大，成长__________________

11. 英国_________ 12.充满，满是______________ 13. 书的封面_____________

二、根据首字母提示写词。

1．He d__________ to go for a trip.

2．H_________ up, or you will be late.

3．The movie is so f__________, I like it very much.

4．He is i_________ in English so his English grade is very good.

5. When I g________ up ，I want to be a doctor. 三、用所给单词正确形式填空。

1. He has just ________ (copy) all the words.

2. When you finish _________ (read) the book, please remember ___________ (return) it to the library on time.

3. I have already _________ (put) it in my suitcase.

4.The boy__________(water)the flowers already.

5.She___________(watch)the movie twice.

6.-________you _______(visit)the Great Wall before?-Yes,I ______.

7.-________you ever_______(drive)a car? - Yes,I______.

- When_______you first_______(drive)a car?1. Judy has already _______ (finish) reading Little Women.

8. Tom and Mike have already _______ (decide) to learn Chinese on Internet.

9. Have you ________ (read) Alice in Wonderland yet?

10. Robinson ________ (have) already built a house on the island.

四、按要求改写句子。

1.Has Jack read Tom Sawyer yet? （肯定回答）_____, ______ ______.

2. Has he cut down that big tree yet? （否定回答）_____, ______ ______.

3. Julia has not got home from school yet. （改为肯定句）

Julia ________ _________ ________ home from school.

4．He has already gone to New York.(变一般疑问句并回答)

____ he _____ to New York ____? _No, he______.

五．用单词的正确形式填空

write, see ， eat, have, go, hear

Dear Mike,

I’m sorry I haven’t_____ for a long time. I’ve been very busy. I’ve taken four exams this week, and I have to take one more tomorrow. This weekend I’m going

to relax. I’m going to see the new Tom Cruise movie. (My sister _____ it last week and she says it’s one of the best movies she’s ever seen.) I’m also going to eat dinner with my family at a new Korean restaurant. We haven’t been to a restaurant in a long time, and I’ve never _____ Korean food. And I’m going to visit the Great Wall. Believe it or not, I’ve lived here all my life and I’ve never been there! So, how have you been? ____ you seen any good movies recently? Have you eaten at any good restaurants Have you ______ to any interesting places? Please write back and let me know what you have been doing lately. I am looking forward to _____ from you. Your Friend Wang