評論
打印
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?
對話一
男：嗨，蘇。你能給我講講周一的課嗎？我當時有緊急情況去看了牙醫，所以錯過了史密斯教授的課。那堂課是關于什么的？
女：那堂課很有趣，是關于火山的，南極西部冰蓋下面的活火山。
男：冰蓋下面竟然有活火山？
女：顯然是的。他說這些火山可以阻止冰蓋融化。如果那里的冰融化，洪水會毀掉一切，遭殃的將不光是那一片區域，而是全世界。
男：這我就不明白了。火山是熱的。熱的東西怎么可以阻止冰融化呢？
女：等一下，讓我看一下筆記。對，是這樣，火山的熱量僅僅足夠使冰蓋的底層融化成一個光滑的表面。而融化的海水會將冰塊沖向大海。所以冰蓋內部堅固的冰層不會受到海洋溫度的影響。我這樣說你能理解嗎？
男：有點明白了。你是說因為有冰塊被沖向大海，大海中溫度相對較高的海水就不能反向流進。
女：完全正確。史密斯教授還說，如果冰蓋破裂或者融化，海平面將會上升七米。那么洪水就要來了。
男：這真的有可能發生嗎？還是人們一直以來聽到的夸張說法？
女：依我看，由于全球變暖的原因這是有可能發生的。我的意思是，如果海洋溫度升高，那么冰蓋內部的冰塊很有可能會融化掉。
男：感謝你告訴我關于這節課的內容。聽上去我好像錯過了一堂很重要的課！
問題1 男生為什么請女生告訴他關于那堂課的內容？
問題2 教授課程的主題是什么？
問題3 什么信息讓男生感到迷惑？
問題4 什么因素可能導致海平面上升？
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