Passage Three Questions 22 to 25 are based on the passage you have just heard. |
Passage Three Questions 22 to 25 are based on the passage you have just heard. |
Passage Three Questions 33 to 35 are based on the passage you have just heard. |
Passage Three Questions 31 to 35 are based on the following passage. An understanding of man’s effect on the balance of nature is crucial(关键的)to being able to find the appropriate remedial action. It is a very common belief that the problems of the population explosion are caused mainly by poor people living in poor countries who do not know enough to limit their reproduction. This is not true. The actual number of people in an area is not as important as the effect they have on nature. Developing countries do have an effect on their environment,but it is the populations of richer countries that have a far greater impact on the earth as a whole. For example,tropical forests are known to be essential to the balance of nature,yet we are destroying them at a great rate. They are being cleared not to benefit A. rich people B. poor people C. natural disasters D. mankind 我来回答: 提交
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