解答托福听力技巧之离题原则

>>托福听力：解答托福听力技巧之离题原则

>>托福考试经典名师推荐

案例1：TPO19 lecture 2文章开头部分

Professor：So how many of you have seen the Milky Way, the Milky Galaxy in the sky? You, you have?

Student：Yeah, I was camping, and there was no moon that night, it was super dark.

Professor：Anybody else? Not too many. Isn’t that strange that the Milky Way is the galaxy that the planet earth is in, and most of us have never seen it? Now, what’s the problem here?

Student：Light pollution, right? From street lights and stuff ...

教授一直在和学生讨论the Milky Way以及为什么银河系看不到what’s the problem here? ，但是在听完全文之后我们可以看到本篇文章主要讲了两个观察天文的方法Radio Astronomy & Optical Astronomy，并且阐述了两种方法在观察过程中会出现的缺陷。可是文章的开头没有提及主题而是在讨论银河系，因此可以看出这篇文章在开头部分并没有直接进入课堂的主题是典型的离题，但是通过讨论分析there was no moon that night, it was super dark银河系看不到和接下来的光污染Light pollution等都是为了引出两个观察天文的方法。

离题原则虽然看似和文章主题无关，但是它是为了引出文章的重要内容，先从不重要的开始讲解。当同学们进入状态再分析重要的内容。小编要提醒大家的是在做文章主旨题的时候一定要辨别是否是离题，不要把离题内容误以为是文章的主要内容。

案例2 TPO18，conversation 2

Professor：Well, I’m glad you redid your outline. I fed a few comments, but nothing you have to act on. It’s in good enough shape for you to start writing you paper.

Student：Thanks! At first I was afraid all that prep work would be a waste of time.

Professor：Well, especially with a challenging topic like yours: factors leading to the emergence of sociology as an academic discipline. There’s just so much history to consider; you could get lost without a solid outline. So did you have a question?

Student：Yeah, it’s about…you mentioned needing volunteers for a research study?

在这篇对话的开头部分，学生和教授讨论paper，学生害怕prep work would be a waste of time准备工作会浪费时间，但是教授说you could get lost without a solid outline帮助学生解答关于准备工作的必要性。解答完这些问题之后教授问学生So did you have a question?又进入下一个话题，根据下面讨论的内容可以看出本篇对话的主题是volunteers for a research study的相关内容。这也是典型的离题原则，教授和学生通过跑题，增加文章主旨内容的迷惑性，因此考生要特别注意这一现象。

以上就是小编分享的如何运用离题原则解答听力题目的相关内容，希望通过上文，考生们能够在遇到离题原则的时候排除干扰，准确找到文章主旨内容。最后，小编建议大家在练习的过程中多多实践，最后一定可以取得完美的托福考试成绩。还想了解更多就来坦途网托福考试频道吧。