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GRE阅读考试模拟题及答案解析(4)

2016-03-10 18:35:13来源：网络

　　P4

　　1

　　It is one of nature‘s great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants‘ leaves are bathed in a sea of nitrogen gas.

　　即便植物的叶子浸没在氮气的海洋中，植物生长从土壤中获取氮却经常有一个上限，这是大自然最具讽刺意味的现实之一。

　　2

　　The leguminous plants—among them crop plants such as soybeans, peas, alfalfa, and clover—have solved the nitrogen supply problem by entering into a symbiotic relationship with the bacterial genus Rhizobium.

　　豆科植物——包括大豆，豌豆，苜蓿，车轴草——通过与根瘤菌建立一种共生关系解决了氮吸收的问题。

　　10. Which of the following situations is most closely analogous to the situation described by the author as one of nature‘s great ironies?

　　(A) That of a farmer whose crops have failed because the normal midseason rains did not materialize and no preparations for irrigation had been made

　　(B) That of a long-distance runner who loses a marathon race because of a wrong turn that cost him twenty seconds

　　(C) That of shipwrecked sailors at sea in a lifeboat, with one flask of drinking water to share among them

　　(D) That of a motorist who runs out of gas a mere five miles from the nearest gas station

　　(E) That of travelers who want to reach their destination as fast and as cheaply as possible, but find that cost increases as travel speed increases

　　选C

　　文段中的讽刺是，大气中有海量的氮而植物不能利用，只能从土壤中吸收且有上限。与之类似的是船难过后水手在救生艇上，只有一瓶饮用水，四周的海水都不能喝，喝了会肾衰竭。

本文关键字: GRE阅读 gre考什么 GRE模拟题

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