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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.
What is NOT the cause of the gradual disappearance of the Amazon jungles, according to the passage?
选项 A、Mining.
B、Constant logging.
C、Raising domestic animals.
D、Producing cars.
答案D
解析 推理判断题。题目询问哪一个因素并未导致亚马逊丛林的逐渐消失。第三段末句说，无休止的伐木(B项constant logging)、采矿(A项mining)和畜牧业(C项raising domestic animals)都是导致亚马逊丛林逐渐消失的元凶。故D项Producing cars(汽车产业)不是。
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