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托福听力部分讲座对话场景解题技巧

2015-08-05 17:31:02来源:北京新东方 刘韧

  相关录音材料:And another bit of physics I’ll play here is something called Resonance. I know physics, but well, for example, I imagine you’ve all blown air over the top of an empty bottle and heard the sound it makes. And you’ve probably noticed that depending on its size—each empty bottle plays one particular musical note. Or as a physicist might put it, each bottle resonates at a particular frequency. Well, that’s true of these chambers too. If you make a constant noise inside the chamber, maybe by steadily beating a drum at a certain rate, a particular frequency of sound will resonate; will ring out intensely, depending on the size of the chamber. In some of the larger chambers though, this intensified sound may be too deep for us to hear, we can feel it. We are mysteriously agitated by it, but it is not a sound our ears can hear.

  解析:本题考查的是教授在讲座中举例的目的。在与本题相关的录音材料中,教授便是首先用called引出了本段要介绍的新概念——resonance,然后用for example引出了关于往an empty bottle里吹气的例子。考生在听到for example之后要对其后陈述的例子要多加留意,重点关注例子背后涉及到的理论或论点。在这部分中,教授在讲述完a bottle的例子之后便总结了其后的观点:“Or as a physicist might put it, each bottle resonates at a particular frequency.”考生通过这个句子便能了解到教授举a bottle的例子是为了证明回声的问题,由此可以得出本题的正确答案为选项C。从本道题中,我们可以看出,考生在听录音时不必过多地关注例子的细节,而应该把握举例的目的。

本文关键字: 托福听力 托福听力技巧

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