最后一段可以找到一句话和题干所述的意义非常接近:Many come through periods of stress with more physical and mental vigor than they had before。这里的come through periods of stress应该等同于experienced ups and downs,而with more physical and mental vigor than they had before则是经历过人生起伏后的结果,也就是肉体和精神上更具活力。
四个选项中C的说法与此最为接近。B较有迷惑性,但要注意strained是指紧张的、疲倦的,和文意的更有活力恰好相反。 Passage Three
Questions 31 to 35 are based on the following passage.
It is hard to track the blue whale, the oceans largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior.
So biologists were delighted early this year when, with the help of the Navy, they were able to track a particular blue whale for 43 days, monitoring its sounds. This was possible because of the Navys formerly top-secret system of underwater listening devices spanning the oceans.
Tracking whales is but one example of an exciting new world just opening to civilian scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential enemies.
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