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¡¾ÌâÄ¿¡¿ We are all busy talking 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, but in the early 1970s, universities, hospitals and banks were allowed to used it,too. However, computers were still very expensive and the Internet was difficult 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 that millions of people use the Internet every day. Sending e-mail is more and more popular among the students. The Internet has now become one of the most important parts of people¡¯s life.

¡¾1¡¿_____, computers were large and expensive, and computer network didn¡¯t work well.

A.In the 1960sB.At the end of 18th century

C.TodayD.By the start of the 19th century

¡¾2¡¿A new network system was set up to__________.

A.make computers cheaper

B.make itself keep on working all the time

C.break down the whole work

D.make computers large and expensive

¡¾3¡¿At first the Internet itself was only used by______.

A.the governmentB.universitiesC.hospitals and banksD.schools

¡¾4¡¿Which of the following is true?

A.In the 1960s, computers worked well.

B.In the 1970s, the Internet was easy to use.

C.Sending e-mails is now more popular among students than before.

D.Today it¡¯s still not easy to get on-line.

¡¾5¡¿The best title for this passage may be ¡°________¡±.

A.The computer

B.How to use the computers

C.How to Set Up A New Network

D.The History of the Internet

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Weather has a strong effect(Ó°Ïì) on people. It influences health, influences health(ÖÇÁ¦), and feelings.
In August, it is very hot and wet in the southern part of the United States. Southerners have heart trouble and other kinds of health problems during this month. In the northeast and the Middle West, it is very hot at times and very cold at other time. People in these states tend to(Ç÷Ïò) have heart trouble after the weather changes in February or March.
The weather can also influence intelligence. For example, in a 1983 study by scientists, the IQ scores of a group of college students were very high during a hurricane(ì«·ç), but after the storm their scores dropped 10%. Storm can increase intelligence. Very hot weather, on the other hand, can lower(½µµÍ) it. Students in many schools of the United States often do badly on exams in the hot months of the year.
Weather also has a strong influence on people's feelings. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel sad during cold weather. In hot summer weather, on the other hand, fat people may feel unhappy. At about 18¡æ, people become stronger.
Are you feeling sick, sad, tired, forgetful£¨½¡Íü£©, or very intelligent today? The weather may be the reason.

influences people's life

Influence
People's

weather can have bad effect on health. People in the southern part of America often and other kinds of health problems in August.

Influence
People's
intelligence

College Students' IQ were very high during hurricanes, but after the storm their scores dropped 10©‡. Storm can Oh the other hand, can lower intelligence.

Influence
People's

Thin people usually fell . And they might feel
During cold weather. Fat people might fell during hot summer.

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