【文章內容簡介】 r own stomach and they?ll lead you to the nearest restaurant. Thirsty, the monkeys will lead you to a bar. Tired, you put both of your hands behind your head and the monkeys will take you to the nearest hotel. Don?t feel surprised when they put out their hairy hands to you after the service is done. They are just asking for a little money as a tip. After that, they will wave their hands as if they are saying goodbye to you. Believe it or not, these monkeys are from the school for monkeys in India, where they were trained for one year. They are not the only monkey students in the world. Some are being trained as nurses in an American medical college. These monkeys are about to look after patients and help them with their housework. A threeyearold monkey named Helen has learned to turn on TV, turn off lights, and open doors and windows when she is told to. Once the job is done, she will rush to her master, hoping to get some food as a reward. 50. When you?re thirsty, the monkey will lead you to ________. A. a bar B. a hotel C. a restaurant D. a shop 51. According to the passage, monkeys aren’t trained to ________. A. open doors B. buy food C. turn off lights D. look after patients 52. What is probably the best title for this passage? A. Funny Monkeys B. Lovely Guides C. Special Nurses D. Good Helpers C There are many colors in nature. But do you think that a color has weight? I think you?ll say “no”. But I am 6 afraid you are wrong. If you don?t believe it, you may do a small experiment. First, put two objects with the same weight into two boxes. Then cover the boxes. Third, wrap（包裹） one box with a red piece of paper, the other with a white piece of paper. OK. Now hold the boxes with your hand one by one. It is certain that you will think the red one is a little heavier. Why do you think so? A scientist found that different colors have different weights in a man?s mind. So he did many tests and at last he got the result. That is to say, every color has its own weight in our mind. The scientist told us that colors also have smell. Can you smell the color? Of course not. Then why did the scientist say so? That is because every color stands for a kind of light with a certain wavelength. It reaches our brain through sense ans (器官 ). According to this discovery, scientists say that people accept the colors they like, and refuse the colors they hate. So your body and mind will be healthy by using the colors you like. Or you?ll be nervous or even get ill. For example, you like blue and hate red. If you stay in a room with red windows, wallpaper and furniture for two hours, you?ll feel you have been there for four hours. But if the room is blue, you?ll feel you have been there for only an hour. And, if a person walks out of a blue room and into a red room, his temperature will rise. That means our body temperature will change with different colors. 53. From the experiment, we know that ________. A. the red box is heavier than the white one B. colors can change the weight of an object C. colors have different weights in people?s mind D. the white piece of paper is lighter than the red one 54. When we walk from a red room into a blue one, ________. A. we will feel very nervous B. our body weight will change C. our body temperature will fall D. we will notice different smells 55. This passage is probably ________. A. a science report B. a news story C. a historical record D. an adver