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3 Computers Unit Period 1 Module 2 Science and technology

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1 3 Computers Unit Period 1 Module 2 Science and technology
Oxford English Unit 3 Module 2 Science and technology Computers Period 1 Getting ready Reading (I) Culture corner

2 1 Getting ready Look at the cartoon and answer the questions.
Where are Hi and Lo? What is Hi wondering about Lo? Where does Lo get his money? What can you do with an ATM? What makes an ATM work? They’re outside a bank. He is wondering why Lo is never short of pocket money. Lo gets his money from the ATM. We can get money from it or put money into it. Maybe a computer. A computer makes an ATM work. It controls the ATM. 

3 2 More about computers software hardware virus multimedia file PC
Match the words in column A with the definitions in column B. something that gets into a program and harms it software a collection of information on a computer that is stored under a particular name hardware virus the sets of programs that you put into a computer when you want it to do particular jobs multimedia a computer’s monitor, keyboard, drives, etc. file personal computer PC two or more computers linked together network a mixture of sound, pictures, film, and writing to give information, especially with computers A B ATM automated teller machine

4 Do you have a computer at home?
¥12,000 ¥3,600 Computers are less expensive now. 

5 Brainstorm What do you usually do with computers? Computer

6 type  calculate 
What do you usually do with computers? type  calculate 

7 monitor keyboard main unit mouse speakers
How much do you know about computers? Look at the photo below and complete the sentences with the correct names. I   B   1 The _________ shows words and pictures. 2 We use the _________ for typing. 3 The “brain” of a computer is in the ___________. 4 We move the _________ to control the computer. 5 We hear sound from the __________. monitor keyboard main unit  mouse speakers

8 3 Before you read 1 Computers are getting smaller and better.
Look at the pictures, the title and the sub-headings of the article on page 35. Then tick (✓) the facts that the article probably talks about. 1 Computers are getting smaller and better. 2 Computers can do important jobs like flying planes. 3 Computers may work as doctors. 4 Computers are expensive.

9 sub-headings A sub-heading usually tells us the topic of the paragraph(s) below it.

10 1 Computers are getting smaller and better.
Look at the pictures, the title and the sub-headings of the article on page 35. Then tick (✓) the facts that the article probably talks about. 1 Computers are getting smaller and better. 2 Computers can do important jobs like flying planes. 3 Computers may work as doctors. 4 Computers are expensive.

11 4 Vocabulary Computer facts Smaller and better
In the 1940s, the first computers were bigger than cars. Now computers are becoming smaller and better. Some computers are tiny. You may be unaware of them. There is probably one inside your TV or washing machine. You depend on computers more than you realize. 3taIni dI3pend

12 What can we do with computers?
We can use computers to calculate. They can calculate at a faster speed than we can and almost never give wrong answers. We can also type and draw things with them. In addition, computers can do important jobs like operating railways and flying planes and spaceships. spid 3BpRreIt 3reIlweI

13 Is a computer cleverer than me?
The answer is “No”. Your brain can produce new ideas but computers cannot. However, one day computers may be able to do a better job than human beings. For example, they may be better than doctors at doing their job. What will happen to us if computers can do all our jobs? Will we have nothing to do? Computers may change our lives, but will they make them better?

14 tiny depend on In addition operate
C1 The words in italics explain the meanings of some words on page 35. Find these words to complete the sentences. Change their forms if necessary. 1 If something is very small, it is _____________. (line 5) Some young people always need help from their parents. They should learn to _____________ themselves. (line 8) We had fun and learnt something new as well. We had a good time. _____________, we learnt a lot. (line 14) When we make a machine work, we _____________ it. (line 16) tiny depend on In addition operate

15 expensive speed In addition depend on
C2 Complete the conversation below with the words from the box. expensive speed In addition depend on

16 keyboard depend works operate tiny brain control unaware
Complete the sentences with the words you have just learnt. Change their forms if necessary. I can’t type because the __________ doesn’t work. You __________ on your parents too much. You should learn how to look after yourself. 3 My father __________ as an engineer. His job is to __________ some big machines and repair them. 4 CPU is the “__________” of a computer. It’s a __________ part in the main unit. 5 Getting angry may make you lose friends, so it is important to __________ your feelings. 6 He is driving at a speed of 150 km per hour. It’s very dangerous, but he is __________ of the danger. keyboard depend works operate tiny brain control unaware

17 What is an “ancient computer”? It can calculate like a computer.
5 Culture corner What is an “ancient computer”? The abacus The abacus was perhaps the first type of computer. People started using it over 4,000 years ago to do maths. It was used in ancient China, Rome, Egypt and Greece. Today some people still use the abacus. Can you use an abacus? How is it similar to a modern computer? It can calculate like a computer.

18 Homework H 抄写单词和短语:monitor, speaker, main unit,keyboard,mouse,type,brain,control,expensive,tiny,depend,calculate,speed,operate,railway, work as,(be) unaware of,depend on,in addition等。 思考:除了银行的ATM机,电脑还被广泛运用于日常生活中的哪些领域? 完成《英语(八年级 上册)B》第34页Vocabulary和第41页Reading A的练习。


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