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A、Some sea creatures developed vertebrae. B、The first giant squid was captured. C、Some sea creatures shed their shells. D、Sea li
A、Some sea creatures developed vertebrae. B、The first giant squid was captured. C、Some sea creatures shed their shells. D、Sea li
admin
2010-09-10
53
问题
M: I really appreciate your filling me in on yesterday’s lecture.
W: No problem. I thought you might want to go over it together. And, anyway, it helps me review. Hope you’re feeling better now.
M: I am. Thanks. So, you said she talked about squid.’? Sounds a little strange.
W: Well, actually, it was about the evolution of sea life -- a continuation from last week. The octopus and the squid descended from earlier creatures with shells. They survived by shedding their shells somewhere between 200 and 500 million years ago.
M: That’s a pretty long span of time.
W: I know. That’s what she said, though. To be precise. "Exactly when they emerged is uncertain …and why is still unexplained."
M: Some squid are really huge. Can you imagine something that big if it still had a shell?
W: Actually, it’s because they lost their shells that they could evolve to a bigger size.
M: Makes sense. But some are really huge. I’ve read about fishermen that caught squid that weighed over a ton. Did she talk about how that happens?
W: Not really. But she did mention some unusual cases. In 1933 in New Zealand they caught a squid…let’s see here… it was twenty—two yards long. Its eyes were eighteen inches across. Can you imagine?
M: Reminds me of all those stories of sea monsters.
W: Dr. Simpson thinks there are probably even larger ones that haven’t been found because squid are intelligent and fast—so they can easily get away from humans. Maybe some of those monster stories are true.
选项
A、Some sea creatures developed vertebrae.
B、The first giant squid was captured.
C、Some sea creatures shed their shells.
D、Sea life became more intelligent.
答案
C
解析
这是一道细节题,考生在听的时候,应该特别注意时间,尤其是在谈论进化、历史事件、事物发展等话题的时候。W和M在讨论上课内容时,W说道,章鱼和鱿鱼原来都是有壳的,在距今2至5亿前,它们的壳脱落,得以继续生存下来,因此选C。
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0
大学英语四级
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