內容簡介
最新的六級模擬試題10套
圖書目錄
大學英語六級考試試卷結構與應試技巧
大學英語六級考試大綱樣卷
大學英語六級考試模擬試題
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TeSt 7
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Test 10
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文摘
著作權頁：
Passage Two
Unless measures are taken at once, there is a good chance that all the oceans of the world will be heavily polluted by the year 2000.How could this possibly happen?
We have already seen that people allow all kinds of waste products to flow into the sea.It is almost impossible to measure how much sewage and industrial waste end up in our oceans.And how about oil pollution in the oceans? It is illegal to discharge oil into the sea close to the coast, but when a ship is many miles out to sea there are no such restrictions.Sometimes there is a ship collision, and our beaches are covered with oil.But collisions are not the only cause of oil pollution, not even the main cause.Much more oilis discharged at sea when the oil tanks are cleaned out.
Estimates of the amount of oil discharged into the sea vary quite a lot, but the lowest figure for oil discharged into European waters alone is about 200,000 tons every year.Some people say that the figure could be ten times higher.
It is not only our beaches that are polluted by oil, among other things, some fish in the sea now contain great amounts of poisonous substances.Next time you eat fish, how can you be sure that they are free from oil pollution? It is really quite a problem.
