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  3. The world’s rainforests cover less than ten percent of the earth’s surface, but contain over forty percent of all plant and anim

The world’s rainforests cover less than ten percent of the earth’s surface, but contain over forty percent of all plant and anim

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问题     The world’s rainforests cover less than ten percent of the earth’s surface, but contain over forty percent of all plant and animal species. The biggest rainforest is in South America, it’s called the Amazon.
    Amazon is by far the largest remaining rainforest area left on our planet. It’s about 6 to 7 million square kilometers. It’s about two-thirds the size of the United States including Alaska. It’s enormous. Sixty percent of it is in Brazil, but the rainforest also extends into Bolivia, Peru, Ecuador, Colombia, Venezuela, French Guiana and Suriname. And amazingly each year the Amazon provides twenty percent of the world’s fresh water. Here you can find at least 60-70 thousand plant species and at least 3 thousand species of fresh water fish. And more monkeys than you find anywhere else on earth. In Brazil alone nine new species of monkeys have been identified over the last year.
    But many of those species, known and unknown, are destroyed every day. Moreover, constant logging, mining and raising domestic animals cause a gradual disappearance of the Amazon jungles.
How many new species of monkeys have been identified in Brazil alone over the last year?
选项 A、Eight.
B、Nine.
C、Ten.
D、Eleven.
答案B
解析 事实细节题。本题询问去年仅在巴西一国就新发现多少种猴子?根据Brazil查找到第二段末句，该句指出新发现了九种猴子，故B项Nine正确。A项Eight(8种)、C项Ten(10种)和D项Eleven(11种)都与nine相悖。
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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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