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Unit 3 Computers

Period 1&2, Warming Up, Pre-reading, and Reading Teaching aims 1. Knowledge aims

(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. 1. Ability aims

Develop students' reading abilities and let them learn different reading skills. 3.Emotion aims :

Arouse students' great interest in learning computers and let them learn to use the computers in their daily lives.

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. Teaching methods

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

Teaching procedures and ways Step1.Warming up

Task1: How much do you know about computers? (Make a survey) 1. What does IT mean? 2. How to speak 科学技术 in English? 3. What does PC mean? 4. How to speak 人工智能 in English? 5. What does PDA mean? 6.How to speak 笔记本电脑 in English? 7. What does W.W.W mean? Information technology Science and technology Personal computer Artificial intelligence Personal digital assistant Notebook computer/ laptop World wide web

8. What can computers be used to do in our daily life? Task2: What is it?

…… Give some sentences to describe different kinds of calculating objects and some pictures to help the students to guess what it is? ① An old calculating machine used in China until now. An abacus

② It is a new calculating machine which can solve a large number of mathematical problems. A calculator

③ It is built to solve some mathematical problems. But it is too big. A huge computer

④ It is a computer which can solve all kinds of problems and is used widely now . A PC / desktop

⑤ It is a kind of computer which can be taken conveniently(方便). A laptop / notebook computer Step2.pre-reading

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）

Step3. Reading (1)Skimming

Task 1. Find out the topic sentences of each paragraph (P19.Ex2) Task 2 .Summarize the general idea of this passage. (2)Scanning Task1. True or False

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

2. My real father was Charles Babbage, who wrote a book and build me in

1936.(F: Alan Turning)

3. After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.(T)

4. I was brought into people's homes in the 1970s.(T)

5. Since my birth I have been built to take the place of human race.(F: build to serve human race) (3)Careful- reading

Task 1: Look at the timeline below. Fill in the blanks with information from the

reading text.

Time 1642 1822 1940s 1970s now

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 computers had grown as large as a room.

1960s: The first family of computers was connected to each other. 1970s: Computers were used in offices and homes

Now: Computers connect people all over the world together. Step4. Conclusion of the text How did computers develop?

A calculating machine →_____________→

_________________→_________________→________________→_____________→ ________________→________________→_ many new applications

The development of the computers The Analytical Machine was made by Charles Babbage. The first family of computers was connected to each other.

Period 3 Vocabulary and Useful Expressions ? .common

n. 1. an area of grassland with no fences which all people are free to use or a piece of open land for recreational use in an urban area (常用于专有名词中): Every Saturday Jean went riding on the village common. Harlow Common is very beautiful in winter.哈洛公园在冬天时风景很美。2. in common: in shared possession 3. out of common: unusual adj. 1. of or associated with the great masses of people: The common people in those days suffered greatly. 2. to be expected; standard: common decency. 3. common to or shared by two or more parties: common friend. 4. of no special distinction or quality; widely known or commonly encountered; average or ordinary or usual: the common man. 5. belonging to or participated in by a community as a whole; public: for the common good. 6. commonly encountered: a common (or familiar) complaint. 7. being or characteristic of or appropriate to everyday language: common parlance. 8. lacking refinement or cultivation or taste: behavior that branded him as common. 9. of low or inferior quality or value: produced...the common cloths used by the poorer population. ? simple

n. 1. any herbaceous plant having medicinal properties 2. a person lacking intelligence or common sense adj. 1. not elaborate in style; unornamented: a simple country schoolhouse. 2. (botany) of leaf shapes; of leaves having no divisions or subdivisions 3. having few parts; not complex or complicated or involved: a simple problem. 4. easy and not involved or complicated: a simple game.) 5. lacking mental capacity and devoid of subtlety 6. exhibiting childlike simplicity and credulity: simple courtesy. ? technology

n. 1. the practical application of science to commerce or industry 2. the discipline dealing with the art or science of applying scientific knowledge to practical problems ? universal

n. coupling that connects two rotating shafts allowing freedom of movement in all directions: In motor vehicles a universal joint allows the drive shaft to move up and down as the vehicle passes over bumps.) adj. of worldwide scope or applicability: universal experience. ? mathematical

adj. 1. statistically possible though highly improbable: have a mathematical chance