unit3 Computers 教案

Unit 3 Computers

Reading

Teaching procedures：

1.Listening and reading to the recording of the text WHO AM I?

Turn to page 18 and listen and read to the recording of the text. Pay attention to the pauses, pronunciation and intonation of the native reader.

2.Reading aloud and underlining expressions

Now we are to read the text once again and underline all the expressions in the text. Put them down into your notebook after class as homework.

Collocations from WHO AM I?

begin as…, a calculating machine, be built as…, follow instructions from…, sound simple, at the time, a technological revolution, write a book, make…work, solve problems, become huge, had artificial intelligence, go back to…, the size of…, go by, change size, become small and thin, get quick, stand there by oneself, be connected by…, share information by…, talk to…,bring…into…, deal with…, communicate with…, serve the human race

3.Reading, identifying and settling

It is time to skim the text one more time and identify the difficult sentences. Try analyzing the structures of the difficult sentences and discuss them among your group members. You may also put your questions to the teacher for help.

4.Closing down by doing comprehending exercises

Turn to page 18 and in pairs do the comprehending exercises No. 1 and 2.

Scan the text for information to complete the table below, describing the development of computer.

1642：The computer began as a calculating machine．

1822：The analytical machine was made by Charles Babbage．

1936：The computer grew rapidly both in size and in brainpower．

1940s：The computer had grown as large as a room．

1960s：The first family of computers connected to each other．

1970s：Computers were brought into people's homes．

Now：Computers connect people all over the world together

Language points

Reading WHO AM I?

1. In pairs discuss what they have in common. 两人一组讨论一下他们有哪些共同之处。

in common, for or by all of a group共同的；共有的；共用的

We have very much/a lot /nothing /little /something in common.

我们有很多/没有/几乎没有/有一些相似之处。

You know, Mary, you and I have one thing in common.玛丽，你知道，我俩有一个共同点。

2. Can you put them in an order according to the time when they appeared?你能按照他们现世的时间顺序把他们排列成序么？

in order按照顺序; 挨次整齐; 整洁恰当, 准确; 符合程序

out of order次序紊乱(机器等)失灵; 出故障有病；违反议事规则

3. Over time I have been changed quite a lot.经过一段时间我变化了很多。

4. as a calculating machine 作为一台计算机器

calculate on： depend on 指望

We are calculating on fine weather for the sports meeting.我们指望着运动会有好天气。

5. it nearly took two hundred years before I was built as an analytical machine差不多到了200年之后我才被做成分析机

6. the start of my “artificial intelligence”人工智能的开始

7. From then on, I grew rapidly both in size and in brainpower.

从那时起，我在体积和脑容量方面迅速成长。

8.As time went by, I was made smaller. 随着时间的推移，我被弄得越来越小。

as time goes by随着时间的流逝

go by = pass（时间）流逝，经过(地方)，遵守

9.As a result I totally changed my shape. 结果，我已经改变了我完全的形状。

①as a result 作为...的结果，因为...

without result 没有结果

result in vs. result from

result in 导致，造成...的结果

result from 因为

②totally=completely/entirely完全地

They come from totally different culture. 他们来自完全不同的文化。

10.And my memory became so large that even I couldn’t believe it!

我的存储容量变得如此巨大连我自己都不能相信。

句型：...so+ adj./adv.+that-clause

11. Since the 1970s many new applications have been found for me.从二十世纪七十年代起，我又被开发出来了很多新的用途。

12. Anyhow, my goal is to provide humans with a life of high quality.不管怎样，我的目标是给人类提供高质量的生活。

anyhow=anyway adv. 无论如何，反正，即使，即使这样（用于转移话题）

13. I am now truly filled with happiness that I am a devoted friend and helper of the human race.现在我充满了幸福感，因为我是人类的忠实朋友并时时给他们提供协助。

be filled with...充满了...

Learning about language

14. He used to download information from the Internet and make good use of it.

他常从因特网上下载信息并充分利用这些信息。

区分：used to do...过去常常

be used to do...被用来做某事

get/be used to (doing.) sth. ...习惯(做)某事

15. but in reality he has a long way to go.但事实上他任重而道远。

16. be crazy about非常喜爱，醉心于

She's crazy about dancing. 她热衷于跳舞。

17. do research into 实行...的研究