精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

Now，people use satellites（衛星）to do many things．So far，man has invented four kinds of satellites．  1    of them is used to study the weather．Weather satellites can   2   any part of the world．They can watch clouds and strong winds moving across the earth and  3  many pictures of atmosphere（大氣層） 4    the same time．The pictures    5    the weather stations by these satellites．Scientists can know   6   the weather will change by studying them，and then tell people in time．Weather plays an   7    part in people's everyday life．

Today，many weather stations in the world can receive satellite pictures．After receiving them，the scientists compare（比較）them with  8    ones．Perhaps they may find that the clouds    9    during the last few hours．This may mean that weather on the ground may  __10_  change soon．In their next forecast（預測），the scientists can   11  this．So satellite pictures are   12    to scientists．

__13   satellites were invented，the scientists could forecast the weather for about twenty-four or forty-eight   14  ．Now they can make good forecasts for three or five days．Thanks   15  weather satellites，people can know more about the weather．

1．A．Every one                             B．Each                                     C．One

2．A．reach                                  B．arrive                                 C．get

3．A．taking                               B．take                                   C．takes

4．A．of                                       B．in                                      C．at

5．A．were sent to                      B．are sent to                             C．send to

6．A．how                                    B．what                                  C．which

7．A．useful                               B．important                           C．useless

8．A．early                                   B．earlier                                 C．earliest

9．A．changed                              B．change                               C．have changed

10．A．also                                   B．too                                    C．either

11．A．talk                                   B．speak                                 C．say

12．A．helpful                               B．help                                   C．helping

13．A．After                                 B．Before                               C．When

14．A．weeks                               B．days                                  C．hours

15．A．to                                      B．for                                    C．at

It was a village in India. The people were poor but they were happy. After all, their forefathers had lived in the same way for centuries.

Then one day, some visitors from the city arrived. They told the villagers there were some people elsewhere who liked to eat frog. However, they did not have enough frogs of their own, and so they wanted to buy frogs from other places.

This seemed like money for nothing. There were millions of frogs in the fields around, and they were useless to the villagers. What they had to do was to catch them. Agreement was reached, and the children were sent into the fields to catch frogs. Every week a truck arrived to collect the catch and hand over the money. The villagers were able to dream of a better future. But the dream didn’t last long.

The change was hardly noticed at first, but it seemed as if the crops weren’t doing so well. More worry was that the children fell ill more often, and there were more insects around lately. The villagers decided that they couldn’t just wait to see the crops failing and the children getting weak. They would have to use the money earned to buy pesticides (殺劑) and medicine. Soon there was no money left.

The people realized what was happening. It was the frog. They hadn’t been useless. They had been doing an important job--- eating insects. Now with so many frogs killed, the insects were increasing more rapidly. They were damaging the crops and spreading diseases.

Now, the people are still poor. But in the evenings they sit in the village square and listen to sounds of insects and frogs. These sounds of the night now have a much deeper meaning.

1.From Paragraph l, we learn that the villagers_______.

A. worked very hard for centuries

B. dreamed of having a better life

C. were poor but somewhat happy   

D. lived a different life from their forefathers

2.Why did the villagers agree to sell frogs?

A. The frogs were easy money.

B. They needed money to buy medicine.

C. They wanted to please the visitors.

D. The frogs made too much noise.

3. What might be the cause of the children’s sickness?

A. The crops didn’t do well.                              B. There were too many insects.

C. The visitors brought in diseases.             D. The pesticides were overused.

4.What is meaning of the last sentence of the article?

A. Happiness comes from peaceful life in the country.

B. Money is important.

C. The harmony between man and nature is important.

D. Good old days will never be forgotten.

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.
【小題1】The Internet has a history of more than _________ years.

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（網絡）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 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 ”（瀏覽）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 students.

The Internet has now become one of the most important parts of peoples’ life.

1.The Internet has a history of more than ______ years.

A. sixty                              B. ten                                C. fourty                                     D. fifty

2.A new network system was set up to________ .

A. make computers cheap

B. make itself keep on working all the time

C. break down the whole network    

D. make computers large and expensive

3.At first the Internet was only used by _________.

A. the government             B. universities                      C. hospitals and banks     D. schools

4.________ made “surfing” the Internet more convenient .

A. Computers           B. Scientists                    C. Software                   D. Information

5.Which of the following is true ?

A. In the 1960s , computer networks worked well .

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

C. Today it’s still not easy to get on-line .

D. Sending e-mail is now more popular among students than before .