.
When coal is burned in a boiler, two kinds of ash by-products are produced: a heavy bottom ash and a fine-as-powder fly ash. About 10 to 15 percent of the coal by-product is bottom ash which is used like sand on streets and highways covered with ice, and also on highways as paving material.
It is the fly ash, however, that is receiving much attention. Once considered a waste, fly ash is now regarded as a natural resource in the United States. It can be placed in some lower places, where it is compacted（压实） and covered with soil, for the seeds of various grasses and plants to be placed in the soil to make the land productive.
Fly ash may be added to concrete (混凝土）to build roads and other kinds of buildings, taking the place of the cement(水泥) up to 20 percent. As a by-product of burned coal, fly ash requires no extra energy to be produced, while cement production requires great amounts of energy.
Besides, the technology is able to take out some useful minerals from the fly ash, which is still a very expensive process today. But the time may come when it is cheaper to take out these products from ash than to mine new supplies.
49. The bottom ash can be put on icy streets________.
A. in order to rebuild them B. in order to make them colorful
C. so that people can walk on them D. so that cars can run faster
50. The fly ash can be used to________.
A. grow various plants B. take the place of soil
C. cover productive land D. make more productive land
51. Which of the following is right?
A. To produce fly ash, some extra coal is to be burned.
B. Fly ash is made while producing cement.
C. It takes less energy to produce fly ash than cement.
D. Fly ash is a costless by-product.
52. The word “mine” in the last sentence of the passage means_______.
A. to buy things from other countries
B. to search for useful materials in the mountains
C. to dig deeply into the ground to get useful materials
D. to take out certain materials from other things
.
Is there anything more important than health? I don’t think so. “Health is the greatest wealth(财富),” wise people say. You can’t be good at your studies or work well when you are ill.
If you have a headache, toothache, backache, earache or bad pain in the stomach, if you complain of a bad cough, if you run a high temperature and have a bad cold, or if you suffer from high or low blood pressure, I think you should go to the doctor.
The doctor will examine your throat, feel your pulse, test your blood pressure, take your temperature, sound your heart and lungs, test your eyes, check your teeth or have your chest X-rayed. After that he will advise some treatment, or some medicine. The only thing you have to do is to follow his advice.
Speaking about doctor’s advice, I can’t help telling you a funny story.
An old gentleman came to see the doctor. The man was very ill. He told the doctor about his weakness, memory loss and serious problems with his heart and lungs. The doctor examined him and said there was no medicine for his disease.
He told his patient to go to a quiet place for a month and have a good rest. He also advised him to eat a lot of meat, drink two glasses of red wine every day and take long walks. In other words, the doctor advised him to follow the rule: “Eat at pleasure, drink with measure and enjoy life as it is.” The doctor also said that if the man wanted to be well again, he shouldn’t smoke more than one cigarette a day.
A month later the gentleman came into the doctor’s office. He looked cheerful and happy. He thanked the doctor and said that he had never felt a healthier man.
“But you know, doctor,” he said, “it’s not easy to begin smoking at my age.”
45. The writer thinks that_____________
health is more important than wealth
B. work is as important as studies
C. medicine is more important than pleasure
D. nothing is more important than money
46. The underlined part means “__________”.
he was feeling better than ever B. he wasn’t a healthy man
C. he was feeling worse than before D. he will be well again
47. From the last sentence of the passage, we learn the man__________before the doctor told him not to smoke more than one cigarette a day.
A. was a heavy smoker B. didn’t smoke so much
C. didn’t smoke D. began to learn to smoke
48. Which of the following is NOT true?
A. The doctor usually tests his/her blood pressure when a person is ill.
B. The man told the doctor he couldn’t remember things.
C. The man thanked the doctor.
D. The man didn’t follow the doctor’s advice.
.
第二部分:阅读理解(共20小题；每小题2分，满分40分)
第一节 阅读下面短文，从每小题所给的A、B、C、D四个选项中，选出最佳选项。
A car needs gas to run and your body also needs food to work for you. Eating the right kind of food is very important. It can help your body grow strong to take care of what you eat.
There are four main food groups altogether. The dairy group has food like milk, cheese and sour milk. The other three groups are the meat and fish group, the fruit and vegetable group, and the bread and rice group. Each meal should have at least one food from all four main groups. With all these food together, you will be given enough energy during the day.
It is easy to get into bad eating habits. You may eat your breakfast in a hurry to get to school on time. Or you may not have time for a good lunch. It may seem easy to finish your supper with fish and chips all the time. But you will find yourself tired in these days and you can not think quickly.
Watching what you eat will help keep your body healthy and strong. It is also good to take some exercise. It will help you eat more if you take a walk or play games in the open air. Having a good eating habit with some exercise is the key to your health.
41. Which of the following diets do you think is the best one?
Eggs, tomatoes and chicken.
B. Milk, bread, cabbages and beef.
Corn, fish, cream and pork.
D. Rice, beancurd（豆腐）, apples, fish and chicken.
42. Which of the following is a good eating-habit?
A. Going to school without any breakfast
B. Eating fish and chips for supper all the time..
C. Having at least one food from all four groups each meal.
D. Having different food from all four food groups.
43. In this passage the writer mainly tells us that _____.
A. every person needs food to grow well
B taking exercise can keep your body strong
C. the right kind of food with exercise will keep you healthy
D. enough energy helps people think more quickly
44. The best title for this passage is _____.
A. The Four Food Groups B. A Healthy Diet
C. Your Body And Food D. Food And Your Health
.
He has behaved in the most extraordinary way recently, I wonder what can _______his actions.
|
A．answer for |
B．wish for |
C．ask for |
D．account for |
.
---May I go with my friends to the harvest festival ?
--- _______
|
A．Yes, you may not. |
B．No, you may. |
C．No, you mustn’t. |
D．Yes. you must. |
.
Do you often shop in our store? How much do you ______ spend every time?
|
A．approximately |
B．properly |
C．immediately |
D．probably |
