We are all busy taking about and using the Internet. But how many of us know the history of the Internet?
Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way, computer network system would keep on working all the time.
At first the Internet was only used by the government (政府). But in the early 1970s, universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software that made “surfing” the Internet more convenient.
Today it is easy to get on-line and it is said millions of people use the Internet every day. Sending e-mails is more and more popular among students.
The Internet has now become one of the most important parts of people’s life.
1.The Internet has a history of more than _________ years.
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A．fifty |
B．ten |
C．forty |
D．twenty |
2.A new network system was set up to_______.
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A．make computers cheaper |
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B．make itself keep on working all the time |
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C．break down the whole networks |
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D．make computers large and expensive |
3. At first the Internet was only used by __________.
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A．the government |
B．universities |
C．hospital and banks |
D．schools |
4. ________ made “surfing” the Internet more convenient.
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A．Computers |
B．Scientists |
C．Software |
D．Information |
5. Which of the following sentences is true?
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A．In the 1960s, computer networks worked well |
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B．In the early 1970s, the Internet was easy to use. |
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C．Sending e-mails is more popular among students than before. |
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D．Today it is still not easy to get on-line. |
I can’t remember when I started collecting litter. But it was when I got tired of seeing litter nearby and ___1___ that no one else was going to pick it up.
I live near a forest in Ohio, America. I can walk there ___2___ three minutes. I used to love going there to play with my dog. But one day there was ___3___ much litter there that I became very unhappy. I decided I had to clean up the forest. I wanted to feel happy ___4___ there again.
I __5___ my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes after starting to pick up litter, my bag was ___6__! It had cans, bottles, broken glasses and newspapers in it. From then on, I went to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel ___7___ to do something for the environment.
After each trip, I look at all the litter that I’ve found. If ___8___ of it is recyclable(可回收的) , I keep it. I can’t understand ___9___ people drop litter. But I will keep picking it up until they stop dropping it. I know I am only doing a small bit to ___10___ the earth, but I still think it is important.
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---Would you mind my opening the window?
---________________.
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A．Of course, open it |
B．Certainly, do please |
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C．No, don’t do it |
D．Not at all |
This morning Jack came to school _________ than _________ student in his class.
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A．much late; any |
B．much late; any other |
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C．much later; any |
D．much later; any other |
Peter drives __________ Amy, so it will take Peter _______time to get to the hotel.
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A．much faster than; less |
B．more slowly than; less |
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C．as fast as; more |
D．as slowly as; more |
---Mark speaks English well, but you ______________ him.
---Thank you.
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A．speak as badly as |
B．speak worse than |
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C．don’t speak as badly as |
D．speak much better than |
