Q: Read the article and select the best answer. Article: When we can see well, we do not think about our eyes often: It is only when we cannot see perfectly that we come to see how important our eyes are. People who are nearsighted can only see things that are very close to their eyes. Many people who do a lot of close work, such as writing and reading, become nearsighted. Then they have to wear glasses in order to see distant things clearly. People who are farsighted face just the opposite problem. They can see things that are far away, but they have difficulty reading a book if they don't hold it at arm's length. If they want to do much reading, they must get glasses too. Other people do not see clearly because their eyes are not exactly the right shape. This, too, can be corrected by glasses. Some people's eyes become cloudy because of cataracts . Long ago these people often became blind. Now, however, it is possible to operate on the cataracts and remove them. When night falls, colors become fainter to the eyes and finally disappear. After your eyes have grown used to the dark, you can see better if you use the side of your eyes rather than the centers. Sometimes, after dark, you see a small thing to one side of you. It seems to disappear if you turn your head in its direction. This is because when you turn your head, you are looking at the thing too directly. Men on guard duty sometimes think they see something moving to one side of them. When they turn to look straight at it, they cannot see it anymore, and they believe they were mistaken. However, this mistake happens because the center of the eye, which is very sensitive in daylight, is not as sensitive as the sides of the eye after dark, Question: People who are farsighted _ . Options: A: cannot do a lot of close work without glasses B: can only see things that are very close to their eyes C: have the same problem as the nearsighted people D: have difficulty reading a book if they hold it at arm's length
A: A

Q: Read the article and select the best answer. Article: Tuesday, Jan. 6, 9:50 p.m. We were sitting in our warm living room. The TV was on, and everything was peaceful. Suddenly the light went on and off for a few times and then went out completely. Then the rain started, and everything went black. We found the flashlight and some candles and went to bed. Wednesday, Jan. 7, 7:30 a.m. My first thought after waking up was that it was pretty cold in my bedroom. Clearly, the power didn't come back. After I looked out of the window, I felt even sadder: it was still raining heavily. The room was becoming colder and colder. We had no idea when the power would come back, so my wife started a fire in the fireplace. Thursday, Jan. 8, 12:30 p.m. The snow started. The poor trees now had to carry the heavy snow. The storm seemed to last and we had nothing to do but stay at home. Friday, Jan. 9, 6:00 p.m. Still no power. Even though we lit a few candles, it was still difficult to do anything in their weak light. I was sitting near several candles, but I had trouble reading. Saturday, Jan. 10, 1:00 p.m. The storm stopped this morning, and I drove my car to look for an open store. The trees along the roads were broken. I only bought the most necessary things: bread, some fruit, more drinking water and batteries for the flashlight. On my way home, the power came back and people were very happy. Question: Why did the writer say it was hard to do anything during the storm? Options: A: It was too cold in the room. B: The flashlight had no batteries. C: The light kept going on and off. D: The light of candles was too weak.
A: D

Q: Read the article and select the best answer. Article: Scientists think that many animals cannot see colours. The world is black and white to them. Scientists want to find out if dogs can see colours. When the scientists give the dogs food, they show them a certain colour every time. The dogs get ready to eat when they see this colour. The scientists then show the dogs another colour. Again the dogs get ready to eat. The colours are all the same to them. Colours are not all the same to monkeys. For example, if we put food in a red box, and do this every day, a monkey will always go to the red box to get food. If we put food in a blue box, the monkey won't go to it. Question: The dogs get ready to eat when they _ . Options: A: hear different pieces of music B: see the monkeys C: see black things D: see all the colours
A: D

Q: Read the article and select the best answer. Article: We are all busy talking about and using the Internet ,but how many of us know about 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 the 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 use it too. However, computers were still expensive and the Internet was difficult to use.By the start of the 1990s,computers become 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 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 people' s life. Question: The Internet was widely used in the _ . Options: A: 1960s B: 1970s C: 1980s D: 1990s
A: D