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阅读下列短文, 从所给的四个选项中, 选出最佳答案。
Spider silk is very strong. It can be stretched to 13% of its normal length without breaking. It resists water and it is not affected by extreme temperature changes. Spider silk also does not react to chemicals. It is so thin that one piece of spider silk long enough to reach around the world would weigh less then 1 half kilogram. The publication "Discovery" reports it would take the life's work of 5000 spiders to produce enough silk for one woman's dress.
Military researchers, makers of medical supplies and clothing designers are very interested in spider silk research. American army and navy scientists believe spider silk could be used to make stronger parachutes (降落伞) and bullet proof coats. Medical equipment companies believe it could be placed inside the body and clothing makers think it could make a strong, light weight material.
Researchers are trying to find a way to produce large amounts of spider silk without using spiders.
(1) The best headline for this article is ________. [ ] A. Something About Spider B. A New Discovery C. Silk Research D. Spider Silk
(2) Medical researchers are interested in spider silk because_________. [ ] A. they think it could be used to make woman's dress B. they suppose it could be used to make proof coats C. they believe it could be put inside the bodies D. they imagine it could be used to make a new strong material
(3) Researchers want to get large quantities of spider silk by ______.
[ ]
A. raising many spiders
B. collecting 5000 spiders
C. raising large amounts of silkworms
D. finding a new way we don't know now
(4) "Discovery" may be ________. [ ] A. a writer or a professor B. a story or a novel C. a book or a magazine D. a slide or a film
(5) What character does spider silk have?
A. Water-proof
B. Unaffected by different temperature
C. Has no effect on chemical
D. All of the above
All right! Enough cookies,cola, and chips! It seems that junk food is all that the children want to eat these days.Television controls their tastes.The kids see well-known personalities eating potato chips, candy and other processed food, and they want to be like their heroes.How do they do it?They eat the same food. I wish there were more characters like old Popeye(大力水手), the sailor, who ate spinach(菠菜) and not French fries.
Now I don't expect my children to eat healthy food because I like brown rice, beans, and fresh vegetables. I'm glad to cook traditional meals of meat and potatoes for them. I really can't be too upset with the kids because most adults aren't careful about what they eat. The other night, my wife and I went to a party where there was plenty to drink but very little for us to eat. They served hot dogs and hamburgers. I can't eat hot dogs, with all those preservatives(防腐剂), and hamburgers are filled with chemicals so that they look better. Besides the meat, they had sugar-filled cookies and cake, and of course, chips. I don't want the world to change because of me, but I think people should realize that there are alternatives(选择) to eating meat. They always tell me that I probably don't get my essential(必要的) proteins. I feel better than ever and I'm sure that it's because I'm a vegetarian(素食主义者). I would really like to see more television advertisements which show the benefits of good, healthy, natural food.
【小题1】According to the passage, it seems that ______.
| A.canned food is the only one that the kids enjoy most. |
| B.the children like to have fried chicken only. |
| C.the kids prefer to have cold drinks, not junk food |
| D.the children like nothing better than junk food: cookies and chips |
| A.Television influences children’s food choice |
| B.The author is not single and he eats meats |
| C.Though the author is a vegetarian, he feels very healthy |
| D.It is certain that beans and spinach are not junk food |
| A.why he goes to the party | B.whether he gets enough proteins |
| C.whether he allows his children to eat meat | D.whether he is healthy and strong |
第三部分阅读理解
第一节(共14小题;每小题1.5分,满分21分):阅读下列短文,从每题所给的四个选项(A、B、C、D)中,选出最佳选项。
A
Sports can help you keep fit and get in touch with nature.However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.
Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses(球场) in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.
There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep
well and have better weight control.
Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.
61. Which of the following is the author most probably in favor of ?
A. Cycling around a lake. B. Motor racing in the desert.
C. Playing basketball in a gym. D. Swimming in a sports center.
62. The author uses power walking as an example mainly because______.
A. it is an outdoor sport B. it improves our health
C. it uses fewer resources D. it is recommended by experts
63. The author writes the passage to_______.
A. show us the function of major sports
B. encourage us to go in for green sports
C. discuss the major influence of popular sports
D. introduce different types of environment-friendly sports
The government-run command post in Tunis is staffed around the clock by military personnel, meteorologists and civilians. On the wall are maps, crisscrossed with brightly colors arrows that painstakingly track the fearsome path of the enemy.
What kind of invader gives rise to such high-level monitoring? Not man, not beast, but the lowly desert locust(蝗虫). In recent months, billions of the 3-inch-long winged warriors have descended on Algeria, Libya, Morocco and Tunisia, blackening the sky and eating up crops and vegetation. The insect invasion, the worst in 30 years, is already creating great destruction in the Middle East and is now treating southern Europe. The current crisis began in late 1985 near the Red Sea. Unusually rainy weather moistened the sands of the Sudan, making them ideal seedbed for the locust, which lays its eggs in the earth. The insect onslaught threatens to create yet another African famine. Each locust can eat its weight (not quite a tenth of an ounce) in vegetation every 24 hours. A good-size swarm of 50 billion insects eats up 100,000 tons of grass, trees and crops in a single night.
All ﹩150 million may be needed this year. The U.S. has provided two spraying planes and about 50,000 gal. of pesticide. The European Community has donated ﹩3.8 million in aid and the Soviet Union, Canada, Japan and China have provided chemical-spraying aircraft to help wipe out the pests. But relief efforts are hampered by the relative mildness of approved pesticides, which quickly lose their deadly punch and require frequent replications. The most effective locust killer dieldrin has been linked to cancer and is banned by many Western countries and some of the affected African nations. More than 5 million acres have been dusted with locust-killing chemicals; another 5 million will be treated by the end of June.
On May 30, representatives of Tunisia, Algeria, Libya, Morocco and Mauritania will meet in Algiers to discuss tactics to wipe out the ravenous swarms. The move is an important step, but whatever plan is devised, the locust plague promised to get worse before the insects can be brought under control.
1.The main idea of the first sentence in the passage is that ______.
A. the command post is stationed with people all the time.
B. the command post is crowded with people all the time.
C. there are clocks around the command post.
D. the clock in the command post is taken care of by the staff.
2.The favorable breeding ground for the locust is ______.
A. rich soil. B. wet land
C. paces covered crops and vegetation D. the Red Sea
3.People are alert at the threat of the locust because ______.
A. the insects are likely to create another African famine.
B. the insects may blacken the sky.
C. the number of the insects increases drastically.
D. the insects are gathering and moving in great speed.
4.Which of the following is true?
A. Once the pesticides are used, locust will die immediately.
B. Relief efforts are proved most fruitful due to the effectiveness of certain pesticides.
C. Dieldrin, the most effective locust killer, has been widely accepted in many countries.
D. Over 10 million acres of affected area will have been treated with locust-killing chemicals by the end of June.
5. The purpose for affected nations to meet in Algiers on May 30 is ______.
A. to devise anti-locust plans.
B. to wipe out the swarms in two years.
C. to call out for additional financial aid from other nations.
D. to bring the insects under control before the plague gets worse.
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