Conversation One

M: Hey, Sue. I was wondering if you could fill me in on Monday's class. (1) I had to go to the dentist for emergency then and I missed Prof. Smith's lecture. What was it on?
W: It was pretty interesting. (2) He talked about volcanoes, active volcanoes, under the West Antarctic ice sheet.
M: There are active volcanoes under the ice?
W: Apparently so. (2) He said they help protect the ice sheet and prevent melting. Flooding will destroy anything, not only there, but all over the world if that ice melted.
M: (3) You lost me there. Volcanoes are hot. How can something hot prevent ice from melting?
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 Prof. Smith said that (4) 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, (4) it is possible because of global warming. I mean if the ocean became 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!

1. Why did the man ask the woman to tell him the lecture?
2. What was the topic of the professor's lecture?
3. What information puzzled the man?
4. What factor may lead to the rise of sea level?

对话一

男：嗨，苏N%x!GY-y2Yy。你能给我讲讲周一的课吗？我当时有紧急情况去看了牙医，所以错过了史密斯教授的课^nUgLE^ImnOiA&^S,l。那堂课是关于什么的？
女：那堂课很有趣，是关于火山的，南极西部冰盖下面的活火山L6jsL;n1.2z#*XE5o,)。
男：冰盖下面竟然有活火山？
女：显然是的ldBDNoommK9(PrghpEi。他说这些火山可以阻止冰盖融化GS9tvMxULnH&B。如果那里的冰融化，洪水会毁掉一切，遭殃的将不光是那一片区域，而是全世界q5nPrKfzy^!P470lvP-D。
男：这我就不明白了q7x1RUHDbH%g%zIvO,#z。火山是热的zC&IYieTWe.@L.zlH+。热的东西怎么可以阻止冰融化呢？
女：等一下，让我看一下笔记5XN)cck!a5h)DU。对，是这样，火山的热量仅仅足够使冰盖的底层融化成一个光滑的表面3y-h9Qv8y|8(iP@PT。而融化的海水会将冰块冲向大海jJSv%AF(Rvsr8v~。所以冰盖内部坚固的冰层不会受到海洋温度的影响M(R,|7-5-d。我这样说你能理解吗？
男：有点明白了W@ti3_]yWs-L.p+qx。你是说因为有冰块被冲向大海，大海中温度相对较高的海水就不能反向流进8y]|7)_c#|8;Q。
女：完全正确Z.3@_-gOmagmA0N*yU。史密斯教授还说，如果冰盖破裂或者融化，海平面将会上升七米pRseJF,GM=cx。那么洪水就要来了cAE5uUTR^)-l.H9xi。
男：这真的有可能发生吗？还是人们一直以来听到的夸张说法？
女：依我看，由于全球变暖的原因这是有可能发生的X)X]zj[=&&9jIl。我的意思是，如果海洋温度升高，那么冰盖内部的冰块很有可能会融化掉3p5X.VI(P#*d_lvn,。
男：感谢你告诉我关于这节课的内容2[Uk!P7NYpc.。听上去我好像错过了一堂很重要的课！

问题1 男生为什么请女生告诉他关于那堂课的内容？
问题2 教授课程的主题是什么？
问题3 什么信息让男生感到迷惑？
问题4 什么因素可能导致海平面上升？

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