题目列表(包括答案和解析)
4 . Now there are so 5 wolves that they are destroying their own 6 supply.
A wolf naturally preys（捕食）on animals in the 7 family. People in the wilderness（荒原）also hunt deer for food. Many of the animals have been destroyed by the very 8 recently and by changes in the wilderness 9 life. When the deer can’t find 10 food, they die.
If the wolves 11 to kill large numbers of deer, their prey will 12 some day. And the wolves will, too. So we must 13 the cycle of life in the wilderness to 14 the ecology（生态学）. If we killed more wolves, we would 15 them and their prey from extinction（绝种）. We’d also save some 16 animals.
In another northern state, wolves attacked cows and chickens for 17 . 18 want the United States government to send a team of 19 to study the problem. They believe it is necessary to kill wolves in some areas and to protect them in places where there is a 20 wolf population.
1. A. fun B. food C. sport D. fun
2. A. for B. of C. from D. about
3. A. take B. catch C. find D. play
4. A. increased B. reduced C. developed D. advanced
5. A. many B. few C. much D. little
6. A. animal B. plant C. food D. water
7. A. cat B. dog C. deer D. cows
8. A. hot summers B. warm springs C. cool autumns D. cold winters
9. A. animal B. plant C. food D. cold
10. A. good B. much C. more P D. enough
11. A. start B. stop C. decide D. continue
12. A. disappear B. reduce C. increase D. appear
13. A. keep B. change C. renew D. form
14. A. change B. remain C. balance D. keep
15. A. protect B. prevent C. keep D. save
16. A. wild B. farm C. useful D. field
17. A. fur B. sport C. food D. fun
18. A. Farmers B. Scientists C. Biologists D. Fishermen
19. A. officials B. doctors C. teachers D. biologists
20. A. small B. large C. increasing D. natural
书面表达
假如你叫小华，下面是你收到的你祖父从美国的来信。请你根据来信的内容写一封回信(要求：100词左右)。
May 6, 2007
Dear Xiao Hua,
I had a letter from your mother a few days ago, but she didn't give me much news about you. She said you went on an ecology summer camp. When I heard that you had seen a snake, I was worried. I hoped someone killed it! I was sorry to hear that you had hurt your knee. How did that happen? I hope it is better now.
I know your birthday is coming soon, so I am enclosing (附上) a check for you. Write soon and tell me what you decide to do with the money. I want you to spend it on some-thing nice.
With lots of love.
Yours,
Grandpa
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At middle school level, there are many academic clubs in which the students can participate. Students can choose clubs that focus on an area of interest.
Mathcounts Club
Mathcounts tries to increase excitement about mathematic achievement. It hopes to provide students with the foundation for success in science, technology, engineering and mathematic careers. Schools select individuals and teams to participate in competitions. Mathcounts works to challenge student math skills, develop self-confidence and give rewards for their achievements.
Envirothon
The Envirothon program focuses on natural resources knowledge and exposes students to diverse environmental issues, ecosystems, and topography (地形学). The ecology field competition for five-member middle school teams offers competitions in wildlife, soils, forestry, current environmental issues and aquatics (水上运动). Students work and learn in middle school clubs ·and can compete at local and state level.
Future Problem Solvers
Future Problem Solvers is an academic club that uses a six-step process to solve problems that may happen in the future. Students who like to “think outside the box” may like this club. Teams made up of four students read future scenes and write up solutions in a booklet using the six-step process. Teams that score high enough can go to the state competition and then to the international competition.
Builders Club
Builders Club is open to any middle school student who wishes to perform community service. The members learn by doing, and they learn organization, teamwork, and leadership. Builders Clubs can sponsor a “Teacher of the Year” program, provide a recycling collection point, organize canned food and clothing to support local shelters, adopt a resident at a local senior citizens home, adopt highway, tutor, etc.
1. The students who are not interested in competition would probably choose _____.
A. Mathcounts Club B. Builders Club
C. Future Problem Solvers D. Envirothon
2. Why do some of the students choose Mathcounts club?
A. To be successful in science careers. B. To enjoy solving future problems.
C. To perform community service. D. To study wildlife and soils.
3. What is the common feature of the four clubs?
A. Competition. B. Sponsorship. C. Scientific research. D. Teamwork.
4. The passage mainly talks about _____.
A. the state academic competitions B. middle school clubs
C. extra-curricular activities D. the gifted students
完形填空
Ecology(生态学) is a science of how living creatures and plants exist together and develop on each other and on the local government. Where an environment is undisturbed, the ecology of an area is 1 balance, but if a creature dies out or a new species(种类) is 2 then the ecology of an area will be upset, in other 3 , the balance. of nature will be 4 .
Man is a part of the 5 and has done more to upset the ecology during 6 short span of time on earth than 7 other creature . He has done this by his ignorance (无知) . his 8 , his thoughtless foolishness and his uncontrolled wastefulness. He has poisoned the 9 and polluted both land and water. He has wasted the earth's natural 10 , with no thought for the future, and has thought out the most devastating ways of killing his fellow men and every other sort of life at the same time.
Since man has done so much 11 , it is 12 to man to try to put matters 13 if it is not already too 14 . If there is to be any remedy(补救法) for our ills, that remedy ultimately lies in the hands of the 15 , and the sooner they start doing something about it, the 16 .
One of the main 17 of the earth's troubles is that the world is too crowded and that this overpopulation is growing at an ever-increasing rate. At the same time we are 18 up our natural resources — fuels and mineral ores — at an ever-increasing rate with no hope of replacing them.
For many years the earth has been unable to 19 enough food for these rapidly expanding population and the position has been steadily getting worse 20 some of our richest soils was lost and vast areas that were once fertile(富饶的) lands were turned into deserts.
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