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A、To tell us the resources of the sea are unlimited. B、To tell us there are threats to animals and birds. C、To tell us people sh
A、To tell us the resources of the sea are unlimited. B、To tell us there are threats to animals and birds. C、To tell us people sh
admin
2014-03-25
26
问题
During the nineteenth century, when little was known about environmentalism and conservation, it was common to hear people say that the resources of the sea were unlimited. They believed the world and nature would continuously reproduce all the resources they would need. For example, a noted biologist writing in the mid-nineteenth century commented that none of the great sea fisheries were to be exhausted. Today, though, there is evidence that the resources of the sea are seriously endangered.
Previously, environmentalists have focused their attention on the land and air. The list of endangered species now includes the African elephant, the Indian tiger and the American eagle. Recently, however, they are beginning to discover that the resources of the sea are in as much danger.
Furthermore, the threats to fish are more alarming in some ways than the threats to animals and birds. This is because fish are a much more needed food source, and people throughout the world depend on fish as an important part of their diet. Hence, a decline in the fish supply could have extensive effects on hunger and population. Fishermen in the North Atlantic alone annually harvest 20 billion pounds of fish to satisfy food demand, but the world needs to recognise that these practises cannot continue without exhausting fish reserves within the next few years. Rapidly declining sea resources in many parts of the world are problems that cannot be ignored any longer. Unlike the scholars in the nineteenth century, we now know that food supplies in the sea cannot last forever.
Questions 22 to 25 are based on the passage you have just heard.
22. What did many people in the nineteenth century think about sea resources, according to the passage?
23. What can we learn about the African elephant, Indian tiger, and American eagle from the passage?
24. Why are the threats to fish more alarming than other animals?
25. What’s the purpose of the passage?
选项
A、To tell us the resources of the sea are unlimited.
B、To tell us there are threats to animals and birds.
C、To tell us people should protect sea resources.
D、To tell us people should love fish.
答案
C
解析
选项均以“To tell us”开头并且概括性强表明,本题考查短文的写作目的。短文通过十九世纪的人们对海洋资源的看法,引出海洋资源已面临灭绝的事实,接下来以鱼类资源受到生存威胁为例,说明了保护海洋资源的必要性,由此可知,短文的目的是告诉人们要保护海洋资源,故答案为C)。
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0
大学英语四级
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