Learning about Language优秀教学设计

Unit 3

Computers Reading:

WHO AM I 银川二中：冯丽敏

Teaching goals: I. Learn about the history and development of computers.

II. Be aware of the good and bad effects of computers.

III. Enable students to think of ways to help students to surf the Internet safely after class. Teaching design: Give the lesson in three steps I. Before-reading. II. While-reading. III.After-reading. Teaching procedures and ways: WHO AM I Part I: Before-reading: Riddles: Guess who I am. 1:I was born in ancient China and I am used as a calculating machine. I am made up of small balls. I’m used for teaching number to children or for calculating. (abacus) 2:I am a calculation machine with numbers and different signs. I am especially useful for doing maths problems. (calculator) 3: I began only as a calculating machine but now I am becoming more and more useful in people’s daily life. You can get any information and knowledge from me. Using me, you can also relax and entertain yourself by playing some games，

listening to some music or reading some books.(computer) 4: I am part of a computer. There are rows of keys on me. You can use me to put data, information and to type words into a computer. (keyboard) 5. I am also part of a computer. I am named after an animal. You can operate the computer by giving me a click or double click. (mouse) 6: I look like a TV screen on which you can see your pictures , information and so on.(monitor) 7: I am used to connect computers to each other through phone lines. I am especially useful when you want to surf the internet.(modem)

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8: I am a main part that the computer uses to store information . (harddrive or harddisk) 9: I am small and smart. I can be used as a harddisk to store information, pictures and so on. Also it is easy for people to carry me around.( Universal disk) 10.My brother is U-disk. But I am more popular with music fans, because I can also be used to store music and songs .

(MP3) Part II: While-reading: 1.

Fast-reading question:

⑴

The passage is mainly about __B____. A.

B.

C.

different uses of the computer the history and development of the computer good and bad effects of the computer ⑵

The passage is written in _B___ order.

A. place

B. time

C. space 2. Look at the pictures first and then listen to the tape. After listening ，put the pictures in time order. 3. Look through the timeline on page P19. Then read the passage silently and finish the timeline afterwards. 1642:The computer began as a calculating machine. 1822:The analytical machine was made by Charles Babbage. 1936:Allen Turing wrote a book to describe how computers could be made to work. 1960s: Computers had new transistors and became smaller. 1960s: The first family of computers was connected to each other. 1970s: Computers were brought into people’s homes. Now: Computers connect people all over the world together.

4.Summarize the text，using the timeline as a guide. 1642

calculating machine

1822

analytical machine

1936

universal machine

1960s

new transistors

1960s

the first family

2

1970s

into people’s homes

Now

people all over the world

Part III. After-reading:

Every coin has two sides. So do computers and Internet. Think about the good and bad effects computers and Internet have on students’ life and then let’s have a debate about it. Useful structures: 1.

I think that…

2.

In my opinion…

3.

I believe that…

4

The advantage is…

5.

The disadvantage is…

Homework: 1.Write a short passage about the development of computers. 2.Find out all the sentences in the passive voice from the reading and finish Ex 1-3 on page 20. 3.Think of ways to help students surf the Internet safely and write them down.

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