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外语
A、The active volcanoes in the Antarctic. B、The icebergs and volcanoes around the world. C、How to prevent the eruption of volcano
A、The active volcanoes in the Antarctic. B、The icebergs and volcanoes around the world. C、How to prevent the eruption of volcano
admin
2010-07-24
50
问题
M: Hey, Sue. I was wondering if you could fill me in on Monday’s class. I had to go the dentist’s for an emergency and I missed Prof. Smith’s lecture(19). What was it on?
W: It was pretty interesting. She talked about volcanoes, active volcanoes, under the---uh-- West Antarctic ice sheet(20).
M: There are active volcanoes under the ice?
W: Apparently so. She said they help protect the ice sheet and prevent melting. Flooding would be pretty bad if that ice melted, not only there, but all over the world.
M: You lost me there. Volcanoes are hot. How can something hot prevent ice from melting (21).
W: Wait a minute, let me check my notes. Yeah, here it is. Volcanic heat melts just enough ice to create a slippery surface on the bottom of the glacier. This water allows ice to flow out into the ocean. So the solid interior ice is protected from the ocean’s warmth. Does that make sense?
M: Sort of. You mean that because the ice is flowing out to the ocean, the warmer ocean water can’t flow in.
W: Exactly. And the ice that melts is constantly being replaced by snow. Prof. Smith said that if the ice sheet ever broke up and melted, the sea level would go up seven meters, Then we would have those floods.
M: Is that really possible? Or is it one of those exaggerations you hear all the time?
W: As far as I can understand, it is possible, because of global warming. I mean if the ocean got a lot warmer that interior ice would be very likely to melt.
M: Thanks for telling me about the lecture. Sounds like I’ve missed a pretty important class.
选项
A、The active volcanoes in the Antarctic.
B、The icebergs and volcanoes around the world.
C、How to prevent the eruption of volcanoes.
D、Volcano can protect ice sheet from melting.
答案
D
解析
从题目选项核心名词ice, the Antarctic, icebergs, volcanoes, sheet以及核心动词 prevent,protect等可推测,该题可能考查与南极、冰山、火山等情况有关,听音过程中应该注意这方面。可以从“You lost me there. Volcanoes are hot. How can something hot prevent ice from melting(你把我弄糊涂了,火山是热的,热的东西怎么能阻止冰的融化呢)”得知,该男士对于热的火山能阻止冰的融化感到疑惑,好像这不符合常理,故可推测出正确答案。
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0
大学英语四级
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