19 Since the beginning of time, man has invented many interesting things. Some of these inventions, like numbers, the alphabet and the radio, have certainly changed history. Since 1946, one of the most important inventions has been the computer. It will change all our lives.
At one time it was as large as a room, and quite difficult and slow to operate. But, since the invention of the silicon ship, which is really a very very small electric circuit, computers have been greatly improved. They have become smaller, easier to use, and faster; they can store a lot more information.
Some computer are made as well as television sets. Simple computers can be made smaller than a book. And computers are getting smaller all the time.
There are several reasons why the computer is useful to us. Firstly, it can store a very very large quantity of information in its memory. Secondly, the computer can operate very quickly thousands of times faster than a human and it will not tire. Thirdly, modern computers can be built into other kinds of machines, like radios, cars, planes and so on. They can do many kinds of work.
Soon, almost everyone, either at home or at work, will use some kind of computer. the lives of all of us will be changed by this invention.
The main idea of this passage is ____
A how the computer came into being
B that computers ate getting smaller and smaller all the time
C that the computer will change the lives of all of us
D that modern computers can be built into other machine
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2017届英语一轮精品复习导学案:Unit2《Wish you were here》(译林牛津版必修2)
2017届英语一轮精品复习导学案:Unit3《Understanding each other》(译林牛津版选修6)
2017课堂扫描高三英语一轮复习学案(牛津译林版):M3 Unit 1 The world of our senses
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2017届英语一轮精品复习导学案:Units 1-4(译林牛津版选修11)
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2017届英语一轮精品复习导学案:Unit1《Laughter is good for you》(译林牛津版选修6)
2017届英语一轮精品复习导学案:Unit3《The world of colours and light》(译林牛津版选修8)
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2017届英语一轮精品复习导学案:Unit4《Public transport》(译林牛津版选修7)
2017届英语一轮精品复习导学案:Unit3《Looking good,feeling good》(译林牛津版必修1)
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2017届英语一轮精品复习导学案:Unit1《School Life》(译林牛津版必修1)
2017届英语一轮精品复习导学案:Unit1《Tales of the unexplained》(译林牛津版必修2)
2017届英语一轮精品复习导学案:Unit2《Language》(译林牛津版必修3)
2017届英语一轮精品复习导学案:Unit3《Science versus nature》(译林牛津版必修5)
2017届英语一轮精品复习导学案:Unit2《The environment》(译林牛津版必修5)
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2017届英语一轮精品复习导学案:Unit3《Amazing people》(译林牛津版必修2)
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