牛津上海版初三九年级上英语 Unit4 知识点及练习

(Ox) 9A Unit 4 Computers

PART ONE

I.V ocabulary

1.screen

2.recognize

3.desktop

ptop

5.palmtop

6.ting

7.unaware

8.depend

mon

10.knowledge

11.rarely

12.print

13.importantly

14.operate

15.aeroplane

16.spaceship

17.meaning

mand

19.CD-ROM

20.DVD-ROM

21.writing

22.aware 23.order

24.blank

25.supply

26.contract

27.reference

28.quantity

29.length

30.seat

31.peak

32.court

33.distance

34.contain

35.intelligent

36.leather

37.accuracy

38.sensible

39.retire

plicated

41.overcome

42.gradually

43.scholars

44.continent

45.electronic

46.browse

47.instant 48.raise

49.concept

50.icon

eful Expressions

eful Structures/Grammar

1.Other kinds of computers are so tiny that you may be unaware of them.

2.It’s common knowledge that computers are super calculators.

3.However, one day computers may be able to do most things that a human brain

can do and even do them better.

4.You can buy a program which helps the computer recognize your voice.

5.Many of today’s computers have CD-ROM or DVD-ROl drives．

6.For example, you can use your computer to read about a famous person from

history and you can see a photograph or video of him or her, and even listen to them speaking.

7.They are small enough to put in your pocket Iike a bar of chocolate.

8.It is quite popular to use online messenger services to send instant messages to

people all over the world.

9.They wanted to have a system that would enable universities, research

departments and the army to share resources with each other.

10.The number of users is increasing all the time and it is becoming more widely

available across the world.

PART TWO

I.Word Formation

1.aware (a.)

2.know (n.)

3.operation (v.)

4.true (n.)

5.life (pl.)

6.agree (n.)

7.weight (v.)

8.able (a.)

9.creation (v.)

e (ved.)

11.service (v.)

12.succeed (a.)

13.difficult (n.)

14.depend (a.)

15.calculator (v.)

plete the sentence with the given word in the correct form.

1.Some kinds of computers are so tiny that people may be ________of them.

(aware)

2.Surfing the Interact, like reading, can also make us learn much __________.

(know)

3.The doctor examined the patient first and then decided to _________ at once.

(operation)

4.To tell you the ______ , I don’t care about the result of the speech contest. (true)