一篇英语阅读理解Not very long ago, the computer was a strange machin

一篇英语阅读理解
Not very long ago, the computer was a strange machine. Not many people understood it. Not many people said yes to it. Today, much of that is changing. The first computer system was introduced for use in business in the mid-1950s. Since then, the number of computer systems used in business, governments, and institutions has grown rapidly. In 1975, about 250,000 systems were in use in the United States. This figure is growing by tens of thousands every year.
The electric computer is an important factor in our lives. Each year we use computer is an important factor in our lives. Each year we use computer more and more and more to help us to collect data and to provide us with information. At one time, people thought computers were only used for banks, department stores, and governments. But a rapidly increasing number of computers are used for many other purposes.
Have you ever stopped to think how you are affected by a computer? The clothes you wear are probably made with the help of a computer. The newspaper you read could have been edited and typed by a computer. Even radio programs are often prepared by computers.
Computers today are playing important roles in education, transportation and medicine. They are being used to predict the weather, to examine the ocean, and to develop defence systems. They are being used by businesses, governments, and institutions. There is no reason to think that their uses will decrease. Instead, computers will become a greater part of our lives.
1、What’s the main idea of this passage?
2、Fill in the blank in the second paragraph with proper words or phrases to complete the sentence:
3、In your opinion, how are we affected by computers? (Please answer with in 30 words.)
4、Which sentence(s) in this passage could be replaced by the following one?
There is no doubt that computers won’t become less but more important in our lives.
5、Translate the underlined sentence in the last paragraph into Chinese.
They are being used to predict the weather, to examine the ocean, and to develop defence systems.

1.computer play an important role in our lives
2.空没有给出 我想应该是Each year we use computer WHICH is an important factor in our lives
3.We can get more konwledge with the help of computer and also more entertainment,meanwhile our lives become convinient with the help of computer.
4.There is no reason to think that their uses will decrease. Instead, computers will become a greater part of our lives.
5.他们被用来预测天气,检测海洋和发展防御系统