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托福听力30天备考计划：第15天备考内容

2014-09-26 16:50:33来源：网络

　　很多同学想备考托福却苦于没有办法，新东方在线托福考试频道为大家准备了托福30天备考计划：每一天制定不同的托福备考方案，30天后，让我们拿下托福100+!托福听力30天备考计划：第15天备考内容。

　　今天我们分析TPO 17【TPO17听力文本(Conversation+Lecture)】中这篇环境科学的演讲，通过这篇强调几个细节题的考点。这篇文章除了第一题主旨题，最后一题重听题以外，其余四题都是细节题。除了要了解细节题的，更重要的是能够听出相应考点的信号词。

　　13.Why does the professor compare Earth's movements to a watch?

　　Okay, a lot of people think of earth’s orbit around the sun as being perfectly circular, as smooth and as regular as um, say, the way the hands move on a, ona well-made watch. But, it just doesn’t work that way.

　　这个题涉及到两个细节题考点：举例和转折。举例的信号词还是容易被忽略的“say". 举例需要了解的是例子的大概内容，举例的目的以及相对应的观点。

　　14.Why does the professor mention Northern Hemisphere glaciers?

　　And when earth’s orbit is more elliptical, earth is actually closer to the sunduring part of the year, which makes earth, and in particular, the northern hemisphere warmer. And why is that important? Well, because most of the planet glaciers are in the northern hemisphere. And if it gets too warm, then glaciers will stop forming. And we already talked about how that affects earth’s overall temperature.

　　这道题同样可以说有两个细节题考点：问答和因果。问答考点分为两种：教授自问自答以及教授学生互问互答。

　　15.What is the significance of the evidence found on the ocean floor?

　　Nowwhen Milankovitch first proposed this theory in the 1920s, many of his colleagues were skeptical, Milankovitch didn’t have any proof. Actually, there wouldn’t be any evidence to support his hypothesis until the 1970s, when oceanographers were able to drill deep into the seafloor and collect samples, samples which were then analyzed by geologist.

　　非常明显的转折考点，需要注意的是actually是作为转折信号词出现的。

　　16.What did calcite deposits from Devils Hole reveal?

　　Well,the “devil’s hole” findings contradicted the ones obtained during the 1970s, so basically the question was: were the ages of one, or both of the samples wrong?

　　强调考点，强调分两种：语气是句型。这里是语气的强调，体现的方式是停顿，语速放慢，加重语气等。

　　希望大家重视细节题考点，并且对自己错的细节题进行仔细地考点分析。


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