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八年级英语下册 Unit 6 How long have you been collecting shells(第1课时)Section A 1a-1c导学案

发布时间:2014-01-24 13:50:39  

Unit 6 How long have you been collecting shells(第1课时)

Section A 1a-1c导学案

一、学习目标: 现在完成进行时

能力目标: 了解现在完成进行时

重点词语: collect , shell, skate,

重点句子:How long have you been skating? I’ve been skating for five hours.

--How long did you skate? --I skated for two hours.

--What sport do you play? --Tennis.

--When did you start? --When I was eleven.

难 点::区别不同点:“How long have you been skating?” And “ How long did you skate?”

二、预习导学

1.大声朗读目标1中的生词并能熟记这些生词。

2.合上书后又快又好地完成如下任务:

⑴collection(v.)_____________ ⑵shell(复数)______________

⑶滑冰鞋_______________ ⑷自从__________ ⑸一双__________

⑹滑冰马拉松__________ ⑺how long_________ ⑻a pair of skates__________

3.小组谈论1a 中的问题,并作答。

4.教师引导总结学习现在完成进行时。

三、自学检测

1.用所给动词的正确形式填空。

四、合作探究

现在完成进行时

1.现在完成进行时表示从过去开始一直持续到现在的动作,而且还要继续下去。

2.现在完成进行时的构成:

肯定句:主语 + have / has been + doing ?.

否定句:主语+have/has + not + been + doing ?

一般疑问句:Have/Has + 主语 + been + doing?

3.现在完成进行时的用法: 现在完成进行时的句子中多用延续性动词,如live, learn, study, work等,常与for two hours, since 1998,all this morning, these few days等表示一段时间的状语连用。强调“谈论一直做某事”

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如: I have been cleaning the room all this morning. 我今天一上午都在打扫房间。

I’ve been studying English since I was 4 years old. 自从4岁起我就一直学英语。

4.现在完成进行时与现在完成时的区别:

(1)现在完成时强调动作的完成,而现在完成进行时侧重的是动作的持续进行。 如:I have read a book about birds. (已经读完)

I have been reading a book about birds.(一直都在读,现在还在读,有可能会继续读下去)

(2)两种时态都有延续性, 但现在完成时往往只说明一个事实,一种影响或结果,无感情色彩;现在完成进行时表示一个动作的延续、重复,有时有一定的感情色彩。

如: She has been singing all the day. 她都唱了一整天了。(抱怨、厌烦)

五、展示

1.个人或小组读。2.听录音完成1b。3.对话练习1C

六、学以致用

必做题

单项选择

选做题 6. We all helped him with his English so he didn’t _______ with his study.

A. fall off B. fall down C. fall behind D. fall over

7. Mr Green _______ in China since five years ago.

A. lived B. has been living C. lives D. is going to live

8. ___ is the meeting going to last? ----About twenty minutes.

A. How far B. How soon C. How long D. How often

9. What shall we do now? ___ for a walk?

A. How's about to go B. What about to go

C. How's about going D. What about going 10. Do you have another way of ___ the child?

A. teaching B. to teach C. teaches D. teach

11. There ______ a pair of sports shoes under the bed. A. are B. is C. have D. has

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12. There are many trees on _______ sides of the road. A. each B. every C. both D. all

【总结反思】

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