Learning about Language公开课教案

Unit 3 Computers The third period:

Reading; Comprehending

教学目标：

1.知识与技能：

(1)Get the students to learn the useful and expressions in this part. (2)Let students to learn about history and basic knowledge of computers. (3)Develop students' reading abilities and let them learn different reading skills. 2.情感态度与价值观

Arouse students' great interest in learning computers and let them learn to use the computers in their daily lives. 3.过程与方法

(1). Task-based teaching and learning (2).Cooperative learning (3).Discussion

4. Teaching difficult and important points (1).Let the students learn more about history and basic knowledge of computers. (2).Get the students to learn different reading skills. 课前自主学习：

一、将下列词组或短语译成中文或英文。

1. from…on _____________________

2. as a result ______________________

3. So…that _________________________4. in a way ________________________

5. as well as___________________

7. as time goes by ___________________

9. in/during the 1970s _______________10. _______________________技术革命

11. ______________________ 解决问题

12. ______________________ 人工智能

13. ______________ 走过；过去

14. ______________________ 与……信息共享

15._________________________ 为人类提供高品质的生活

二、重点句型。

1 I was developed very slowly and _______________________________________ I was built as an analytical machine by Charles Babbage.

2. ___________________________, I was made smaller. 3. _________ my memory has developed _____ much____, like an elephant, I never forget anything _____________________. Teaching procedures:

Step1 Skimming (1) The main idea of the passage: This is a short ________ of the __________ of computers. (2) Find out the topic sentences of each paragraph 1 ______________________________________________________ 2____________________________________________________________ 3__________________________________________________________ Step2 Scanning True or False?

1. The computer began as a calculating machine in 1742. (

) 2 The Analytical Machine was made by Charles Babbage in 1822. (

) 3. Computers had new transistors and became smaller in the 1960s. 4. Alan Turing wrote a book to describe how computers could be made smaller. (

) 5. In the past people thought the computer was simple-minded. (

) 6. In the 1960s the first family of computers was connected to each other. (

) 7. Computers could share information and express their feelings. (

) 8. Computers connect people all over the world together.(

) Step 3 Careful reading(Text books, Comprehending 1 on page 19 ) Read the passage and finish the timeline. Step4 Read the text and do the following comprehending exercises. 1.What was the original purpose of inventing computers? A. To calculate something

B. To analyze something C. To solve mathematical problems

D. To serve the human race 2. Which of the following is true about computer’s development? A. It changes from small to big, then smaller. B. It is becoming cleverer and cleverer in intelligence. C. The speed it works at is becoming faster and faster. D. All of the above. 3. When did the Internet come into use? A. In 1936

B. In 1950

C. In the early 1960s

D. In the 1970s 4. How do the computers serve the human race? A. By sharing pictures with other computers. B. By talking to humans just as what they do. D. By helping people deal with information by the Internet. Step 5.

Summary

I was born as a _

calculating machine in 1642. When I was young, I was good at__________ difficult sums. About 2 hundred years had passed before I could think _______ and produce_______ answers. At that time, I was called an ___________ machine. In 1936, I was built as a ___________ machine . I had the ability to _______any mathematical problem. From then on, I grew rapidly both in _______ and memory. After I stored my memory on__________instead of in _____. I became _______ in size but _________in intelligence. As time went by, I became even smaller, for I put my memory on a very small ______, which made me become PC and laptop. In the 1960s, I could be connected with other computers by a _______ From then on, I was able to share my knowledge with others through the _____ _____ ______. After that, I had many new______________. Now, I am glad to serve human beings as a ________

_________ and a pleasant ___________.