Learning about Language优秀教学实录

Unit 3

Computer

Step1.Warming up

Task1: What is it? ①

An old calculating machine used in China until now._____________ ②

It is a new calculating machine which can solve a large number of mathematical problems._____________ ③

It is built to solve some mathematical problems. But it is too big. ___________ ④

It is a computer which can solve all kinds of problems and is used widely now._____________ ⑤

It is a kind of computer which can be taken conveniently(方便).

Step2. pre-reading

Task1:Can you put these inventions in an order according to the time when they appeared? (

)

Analytical machine（分析机）

(

) Laptop (

) Calculating machine （计算机器）

(

) Robot／android (

) PC

(

) Universal machine（通用机器）

Please check to see if you were right after reading the passage!

Step3. Listening and reading

(1)Skimming

Task1. Find out the topic sentences of each paragraph. (P19.Ex2)

Topic sentence Paragraph 1

Paragraph 2

Paragraph 3

Task2 .Summarize the general idea of this passage. The passage tells us the _________________and________________ of the computers. (2)Scanning

Task1. True or False

1.In 1642 I began as a calculating machine and could solve any mathematical problem.

2.My real father was Charles Babbage, who wrote a book and buildt me in 1936. 3.After I got my new transistors in the 1960s, I became smaller but cleverer and quicker. 4. I was brought into people's homes and offices in the 1970s.

5.I am now take the place of human race.

Task 2: Look at the timeline. Fill in the blanks with information from the reading text.(P19 Ex1.)

1

Time 1642 1822

1940s

1970s now

The development of the computers The Analytical Machine was made by Charles Babbage.

The first family of computers was connected to each other.

(3)Careful- reading Task 1:Read the passage and complete the chart below.(P19 Ex2)

Paragraph 1

Paragraph 2

Paragraph 3

Supporting details Step4 Conclusion

How did computers develop? A calculating machine

→_____________→

_________________→_________________→________________→_____________→

________________→many new applications Step5 Homework 1.Retell the passage. 2.P19 Ex3 In pairs discuss.

2