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托福听力中的地球环境学科怎么破?
发布:济南朗阁  点击数:  发布时间:2017-01-05 16:38
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托福听力中的地球环境学科类话题应该怎样应对?这类托福听力话题内容比较接近我们的实际生活,比如环境变化。当然,这类托福听力话题也会涉及到许多场景词汇,还是需要广大托福考生认真复习备考。下面,济南朗阁小编就带领大家具体看一下地球环境学类的听力段子

  托福听力中的地球环境学科类话题应该怎样应对?这类托福听力话题内容比较接近我们的实际生活,比如环境变化。当然,这类托福听力话题也会涉及到许多场景词汇,还是需要广大托福考生认真复习备考。下面,济南朗阁小编就带领大家具体看一下地球环境学类的听力段子应该如何应对~

  一、概述

  这一托福听力话题要求托福考生们关注一些时事,并且开阔眼界,也可以和地理地质学科一并关注。

  ☆ 大气环境:例如赤道无风带,大气环流,全球气候变化

  ☆ 地面环境:例如风能,地下水研究与保护

  ☆ 海洋环境:例如海底热液,潮汐能

  二、案例分析

  下面我们来看一个托福听力地球环境学的经典案例:E.G.TPO17 Milankovitch Hypothesis

  托福听力原文:

  1) Ok, so we have been talking about theories that deal with the effects of human activity on the climate. But today I’d like to talk a little bit about other theories that can explain variations in climate. And one of the best-known is called the Milankovitch Hypothesis

  Q: What is the lecture mainly about?

  A.A hypothesis that explains how changes in Earth’s motions affect climate.

  B.A hypothesis that explains why the shape of earth’s orbit varies over time.

  C.Reasons it is difficult to find evidence to support hypotheses about the climate.

  D.Analyses of the accuracy of data collected in different ways.

  分析:

  这是一道简单的主旨题.我们之前说过,新托福听力段子一般会在前几句出现主旨,所以托福考生一定要留意前几句的内容.录音文本中的划线部分为重点.只要抓住了variations in climate,就可以轻松选出A.在记笔记时,重点标出 “climate 变” 即可。

  2) Now, when 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 geologists...and this showed that earth’s climate had changed pretty much the way Milankovitch’s hypothesis suggested it would. So this evidence was pretty strong support for the Milankovitch Hypothesis. And by the 1980s, most people accepted this theory.

  However, in the late 1980s, some scientists were exploring Devil’s Hole …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 the samples were wrong, or were scientists misunderstanding the significance of the evidence.

  Q: What is the significance of the evidence found on the ocean floor?

  A.It negated earlier evidence that Milankovitch found.

  B.It led the development of new methods to measure global climate changes.

  C.It helped Milankovitch first formulate his hypothesis.

  D.It confirmed Milankovitch’s hypothesis.

  分析:

  解这道托福听力题的关键在于ocean floor.原文中提到 pretty strong support,所以应该是支持性的。选D.托福考生们注意,只要出现不同理论,一定要搞清楚理论列出来的目的,即它所支持的内容是什么.

  三、考点追踪

  地球环境的托福听力段子难度不会太大,主要考察以下几点:

  1.主旨靠前。托福考生一定要竖起耳朵仔细听前几句。

  2.上下文逻辑关系。托福考生不仅要看逻辑信号词,还得留心段与段之间的关系,体会一下是支持还是反对.如果有不同理论或研究调查的出现,要搞清每个支持什么观点.

  3.表示判断的词。比如这里出现的support和contradict.

  4.分类顺序词。理论中可能会涉及到许多因素,托福考生们记笔记时要分条列点,注意条理性,这也能加快找答案的速度。

  地球环境学的托福听力段子在新托福听力中屡见不鲜,官方指南中也有相关的题目,考生可以去练习。其实,熟悉话题对托福考生来说作用有两个:巩固场景词汇和心理适应。在做题的过程中积累词汇,同时适应这方面的内容,在考试中遇到就不会那么慌乱。济南朗阁小编最后提醒大家,要想成功,一定要做足托福听力各个场景的功课。

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