题目列表(包括答案和解析)
单词拼写(共10小题;每小题1分,满分10分)
根据下列句子所给汉语意思或单词首字母,写出空缺处各单词的正确形式。
56. Fresh water is a __________________(宝贵) resource, which must not be wasted.
57. The mushrooms are a bit expensive. ______________(另外), they are not fresh enough.
58. ________________(尊敬) the old is one of the traditional virtues of the Chinese nation.
59. A nutritious breakfast can make sure you have plenty of _______________(精力) for all the activities in the morning.
60. Please list the ________________(辩论) that go against the view of the majority.
61. 20 years later, I still can r_________________ him even though he has changed a lot.
62. Some books are to be tasted, others to be swallowed, and some few to be chewed and d_______________ .
63. With the excellent gift in music, the young man had e_______________ a lot of money by performing to the public early when he was in the middle school
64. You’d better choose s_______________ or boiled dishes instead of fried food for your diet.
65. The professor n_______________ his head to the young man , showing that he was quite satisfied with the lecture.
单词拼写(共10小题;每小题1分,满分10分)
根据下列句子所给汉语意思或单词首字母,写出空缺处各单词的正确形式。
56. Fresh water is a __________________(宝贵) resource, which must not be wasted.
57. The mushrooms are a bit expensive. ______________(另外), they are not fresh enough.
58. ________________(尊敬) the old is one of the traditional virtues of the Chinese nation.
59. A nutritious breakfast can make sure you have plenty of _______________(精力) for all the activities in the morning.
60. Please list the ________________(辩论) that go against the view of the majority.
61. 20 years later, I still can r_________________ him even though he has changed a lot.
62. Some books are to be tasted, others to be swallowed, and some few to be chewed and d_______________ .
63. With the excellent gift in music, the young man had e_______________ a lot of money by performing to the public early when he was in the middle school
64. You’d better choose s_______________ or boiled dishes instead of fried food for your diet.
65. The professor n_______________ his head to the young man , showing that he was quite satisfied with the lecture.
The earth's biosphere (the surface layer of the planet and the surrounding atmosphere) provides the land, air, water, and energy necessary to sustain life. This life-support system is a complex, interdependent one in which energy from the sun is changed into food for humans. The entire system depends on the sun, reasonably moderate temperature, and enough supplies of oxygen, pure water, and fertile soil.
Since the earth's creation millions of years ago, the ecosystem has worked as an interdependent system relatively undisturbed by outside forces. But recently, especially since the Industrial Revolution, human beings have begun to disturb the balance of nature. Natural resources have been severely depleted (消耗) (forests have been destroyed, fertile land worn away, water polluted, and minerals used up), and the life-support system of air, water, and land has been poisoned by a variety of waste products and chemicals.
The degree of these problems was noted in a report by the U.N. Developing Council on Environmental Quality. This report predicted that if present trends continue, the world will be more crowded and polluted and less stable ecologically and politically than the world we live in now.
The twin problems of resource shortages and pollution are caused by three social forces. First, the tremendous increase in population growth constantly increases the demand for food, energy, and other products. As the current population continues to increase, the stress on an already overburdened environment will be increased.A second source of the problem is the concentration of people in urban areas, where the ecosystem simply cannot absorb their waste products. Finally, environmental problems are worsened as more and more nations move toward modem development: an increased reliance on modern technology. As these nations become more technological, they will consume more energy, deplete more natural resources, and create more waste products than the biosphere can absorb.
The life-support system is composed of _____.
A.air, water and land B.the earth, the sun and energy
C.food, land and energy D.food, energy and the sun
The life-support system _____.
A.change energy from the sun into food for humans
B.depends on the sun for enough supplies of air, water and land
C.exists in the surface layer of the earth and the surrounding atmosphere
D.is a complex but independent system
The life-support system has been badly damaged by _____.
A.natural forces B.human activities C.social movements D.political changes
The passage mainly talks about _____.
A.the effects of Industrial Revolution on human beings
B.the importance of life-support system to human beings
C.the significance of balance of nature
D.the destruction of life-support system and its causes
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