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  3. The floors of the ocean have many riches that can be used by man. Oil and chemicals and minerals (矿物) already are taken from the

The floors of the ocean have many riches that can be used by man. Oil and chemicals and minerals (矿物) already are taken from the

admin2014-02-19  68
问题    The floors of the ocean have many riches that can be used by man. Oil and chemicals and minerals (矿物) already are taken from the sea. By using nuclear energy, ocean water can be turned into fresh water by taking the salt out. In the near future, it is possible for human beings to produce food from farms under the sea. Food grown in the sea could help to meet the needs of population all over the world which is increasing fast. Thousands of people go hungry every day. About ten to fifteen percent of the world’s people do not have enough food. Some scientists believe that someday the sea will be used to make electric power. This would help to meet the need for more power for the world’s industries. The decreasing supply of coal, oil and gas shows that the need to find new kinds of power is urgent.
选项 A、nuclear energy in the lab under the sea
B、salt water resource as fresh water
C、minerals, chemicals and oil taken from the sea
D、farms under the sea
答案C
解析 本题题干问“人们已经利用了海洋的什么资源”。原文第2句话指出石油、化学物质和矿物已经被从海洋中提取出来了。因此选项C. minerals, chemicals and oil taken from the sea是正确答案。
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本试题收录于： 大学英语三级B级题库大学英语三级分类
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