Learning about Language教案设计（一等奖）

Book2 Unit 3

computers

Period 1 Learning about Language教学设计

Teaching material：人教版普通高中课程标准实验教科书必修二Unit2 Unit3 Computers

Learning aims: a.

Further understand some key words and useful expressions. b.

Enable the students to learn how to use the present perfect passive voice. c.

Develop the students’ cooperative ability.

Teaching important and difficult points: Make students use the present perfect tense in their English learning. Teaching aids：

blackboard, PPT, multimedia

Teaching methods：

a. task-based teaching

b . cooperative learning

Teaching procedures:

Step1

Lead-in

T: Last class we learned something about the history and development of the computers, so I’m sure you have a further understanding about the computers. Ok, today we’ll go on learning unit3. Let’s come to the next part- Learning about language. First teacher let students finish the task1 by themselves. ㈠

Fill the word or expression for each of the following meanings from the text. 1 _________ complete change in ways of thinking, working, etc 2 ________ connected computer system 3 _________ to make things easier 1

4 _________ to find the answer using numbers 5 _______can be moved easily from place to place 6 _______ to work out the answer to a problem 7 _______to travel around an area to find out about it After finishing the task1, teacher leads the students to fill the following words in the passage. ㈡

Complete the passage with the words below. artificial

technology

intelligent

applications

explore

Web

reality

logically My brother was very interested in computers and enjoyed writing programs of his own. He used to download information from the Internet and made good use of it. He liked to ________ the World Wide _______ and used the Internet to communicate with computer programmers all over the world. When he went to university he studied IT (information ___________) and developed a special in ________intelligence. After developing special ____________of the computer, he hopes to design an __________ robot which can think ________ and look like human being, but in ________ he was a long way to go. Step2 基础知识感知：Discovering useful structures

Teacher shows some sentences on the screen, let’s students observe the sentences carefully and try to find the same structures

①Over time I have been changed quite a lot.

②First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s.

③Over time my memory has developed so much that, like an elephant, I never forget anything I have been told!

④Since the 1970s many new applications have been found for me.

⑤I have also been put into robots and used to make mobile phones as well as help with 2

medical operations.

⑥I have even been put into space rockets and sent to explore the Moon and Mars. 探究发现

(1)以上例句中的时态和语态是

语态。

(2)结构为

。

Step3探究问题

: Exploring questions in groups. Teacher shows some sentences, let students discuss in groups and conclude the different

usage of the present perfect tense. 掌握现在完成的被动语态的用法

1．现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或产生的结果，通常与already, yet, just, never, recently等副词连用。

The door has been locked.

The room has been cleaned.

2．表示一个被动的动作或状态从过去开始一直持续到现在，并可能继续持续下去，常与for或since等引出的时间状语(从句)连用，或用于how long引出的句子中。

The machine has been repaired for two hours. How long has the project been carried out?

3．用在条件状语从句中，表示将来某时已经完成的动作。

We'll set off as soon as the work has been finished. Step4基础知识拓展与迁移：(先自主学习，遇到解决不了的问题，小组合作探究) 现在完成时的被动语态结构

肯定式

否定式

一般疑问式

特殊疑问式

He

(select) to take part in the sports meeting. 他已被挑选出来参加运动会。

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主语＋have/has been done ...

主语＋have/has not been done ...

Have/Has＋主语＋been done ...？

疑问词＋have/has＋主语＋been done ...？

The ink

(remove) from the clothes. 衣服上的油墨还没有被去掉。

the date for the next meeting

(decide)?

下次会议的日期已决定了吗？

How long

the battery not

(change)?

电池多久没有更换了？

请及时记录自主学习过程中的疑难：

Step5 课堂训练：

1 Complete the following sentences into the present perfect passive voice. ⑴

My friend has bought a new personal computer.

⑵The shop has repaired my computer very quickly.

⑶ An unknown virus has just attacked my computer. ⑷We have not solved the problem yet. ⑸The company has given its computers away to a local school. ⑹The scientists have developed a kind of intelligent robot.

2单句语法填空

①Since then many of her friends ________ (invite) to her birthday party. ②The novels written by Mo Yan sell well and ________ (sell) out already. ③Although he has lived with us for years, he ________ (not leave) us much impression. 3 Complete the following passage with the verbs in brackets, using the present perfect passive voice. Notice to parents We hope you will welcome this news. Almost 100 computers

(give) to us by a local computer company since the end of last year. A decision

(make) that we will begin a computer teaching experiment 4

in our school. So every teacher

(provide) with a laptop since the beginning of this term .Since then, most of our courses

(teach) using computers. A lot of information

(take) from the Internet to help us with our teaching. Besides, a new computer room

(set up)

in our school. We started this experiment together with the City Information Technology Center, which

(complete) recently. We hope you will help us with this exciting new development in our school. No 7 Middle School 12/08/20 课堂小结和疑难问题：———————————————————————

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