九年级英语上册 Chapter 2 Computers Reading课件 牛津沈阳版

1、Chapter 2 Computers Reading,What do we use them to do?,the monitor,the keyboard,the floppy disk and the CD-OM,the mouse,the speakers,the main unit,we use,The monitor shows words and pictures.,You use the keyboard for typing in information.,The floppy disk and the CD-OM store information.,The mouse h

2、elps you to control the computer.,We can hear the sound from the speakers.,The main unit contains all the computers electronics.,We put disks into the drives in the main unit.,Lets know about computers!,Read together,What can computers draw? What important jobs can computers do? There may be tiny co

3、mputers in your home. Give some examples. What things can a human brain do better than a computer? Whose jobs may computers do better than people in the future? How may computers change our lives a lot in the future?,Can you answer these questions?,Can you answer these questions?,What can computers

4、draw?,Diagrams and graphs.,What important jobs can computers do?,Operating railways.Flying aeroplanes/ Flying spaceships,There may be tiny computers in your home. Give some examples.,Inside your TV set/telephone washing machine.,Can you answer these questions?,What things can a human brain do better

5、 than a computer?,Whose jobs may computers do better than people in the future?,How may computers change our lives a lot in the future?,Creating new ideas.,A doctors /judges/teachers job.,We may have nothing to do.,Do you know where computers may be?,They may be inside some machines in our homes. Co

6、mputers are hidden helpers.,Not so many years ago. you hardly ever saw computers. Now they are everywhere.,hardly ever 几乎不,他几乎不吃肉。,He hardly ever eats meat.,here and there,I _ have breakfast in the morning. Its bad for my health.,A.usually B.always C.hardly ever D. often,seldom,There may also be tin

7、y hidden computers in your home that you are unaware of.,1.Do you think there are some _ viruses(病毒) in your computer?（hide),be unaware of 不知道的, 没察觉到的 be aware of 注意到,She was unaware of the danger.,他没意识到危险。,dont know about,hidden,There may be one inside your TV set, telephone or washing machine.,_th

8、ere _ one inside your TV set, telephone or washing machine.,Maybe she will come. It may be true.,So maybe you depend on computers more than you realize.,Children depend on their parents for food and clothing.,小孩依赖他们的父母供给衣食。,V.意识到 understand,need,Maybe,is,He is a reporter. He _ (depends ,depends on)

9、computers in his work.,The students _ the important of learning English already. realize B. has realized C. realized D. have realized,depends on,What kind of jobs can a computer do?,They can do important jobs like flying spaceships.,It is common knowledge that computers are super calculators.,众所周知的事

10、情,Computers are super calculators. They can calculate very fast and they can do the calculation accurately.,something known by most people,They can calculate very fast and rarely give wrong answers.,adv.很少。表否定 =seldom,他年纪大了，很少外出。,He is old and rarely goes out.,Our history teacher is very popular bec

11、ause he _ gives wrong answers. (rare),They can also type, print and draw things like diagrams and graphs.,rarely,simple drawing,They can teach you and play games with you.,More importantly ,they can operate railways (like the underground ) and fly aeroplanes and spaceships.,make it work,For these re

12、asons, we often call them electronic brains,operate 还常常作不及物动词用，作“ 动手术”解，常与介词on 连用。 It was said that the doctor operated on the injured man yesterday. 据说医生昨天给那位受伤的人作了手术。,I called him last night.,The teacher called out the childrens names.,Lets call on John at Johns house.,表示看望或拜访某人，后接介词 on 或 upon； 表示

13、到某地拜访，后接介词 at。,Are computers at present cleverer than people?,The answer to this question is, for the time being, No.,Your brain can understand the meaning of things better and create new ideas. However, one day computers may be able to do most things that a human brain can do and do them better. They may be better than doctors, judges and teachers at doing their jobs.,If this is tru