怎样识别GRE阅读中的判断句
<p> <span word="GRE">GRE</span>考试阅读的文章和国内学生写文章不一样，美国人的阅读文章中从来都不出现<span word="I">I</span> <span word="think">think</span> <span word="that">that</span>，<span word="in">in</span> <span word="my">my</span> <span word="opinion">opinion</span>，<span word="as">as</span> <span word="far">far</span> <span word="as">as</span> <span word="I">I</span> <span word="am">am</span> <span word="considered">considered</span>此类语言做主题句。通常来说<span word="GRE">GRE</span>阅读理解文章的主题句有以下两种形式：</p><p> 1. 判断句;</p><p> 2. 概括文章将来结构。</p><p> 比如一个句子：<span word="Your">Your</span> <span word="minds">minds</span> <span word="changed">changed</span> <span word="my">my</span> <span word="attitude">attitude</span>. 这句话中并没有情态动词和系动词，因此这句话自然不是判断句，也就不是主题句。但只要在这句话中加入一个正负褒贬词，即一个词表明作者的态度或观点的词即是判断句了。比如，<span word="Your">Your</span> <span word="minds">minds</span> <span word="successfully">successfully</span> <span word="changed">changed</span> <span word="my">my</span> <span word="attitude">attitude</span>即是判断句了。</p><p> 另外，如果一个句子不是判断句，只要它能够概括文章将来结构，及文章后面会从哪几个方面来说明，也是主题句。比如，<span word="People">People</span> <span word="are">are</span> <span word="living">living</span> <span word="longer">longer</span> <span word="now">now</span>. 这句话一定不是主题句，而如果这句话是，<span word="People">People</span> <span word="are">are</span> <span word="living">living</span> <span word="longer">longer</span> <span word="now">now</span> <span word="since">since</span> <span word="the">the</span> <span word="improvement">improvement</span> <span word="of">of</span> <span word="food">food</span> <span word="condition">condition</span> <span word="and">and</span> <span word="the">the</span> <span word="development">development</span> <span word="of">of</span> <span word="medical">medical</span> <span word="technology">technology</span>.这句话即是主题句了。因为它概括了文章后面会从哪几个方向来进行说明。</p><p> 如果考生在新<span word="GRE">GRE</span>阅读题中掌握好了主题句判断方法，很多文章便可以很快把握文章的结构框架，帮助后面文章的理解。</p><p> 比如一篇文章的开头是，<span word="Mycorrhizal">Mycorrhizal</span> <span word="fungi">fungi</span> <span word="infect">infect</span> <span word="more">more</span> <span word="plants">plants</span> <span word="than">than</span> <span word="do">do</span> <span word="any">any</span> <span word="other">other</span> <span word="fungi">fungi</span> <span word="and">and</span> <span word="are">are</span> <span word="necessary">necessary</span> <span word="for">for</span> <span word="many">many</span> <span word="plants">plants</span> <span word="to">to</span> <span word="thrive">thrive</span>， <span word="but">but</span> <span word="they">they</span> <span word="have">have</span> <span word="escaped">escaped</span> <span word="widespread">widespread</span> <span word="investigation">investigation</span> <span word="until">until</span> <span word="recently">recently</span> <span word="for">for</span> <span word="two">two</span> <span word="reasons">reasons</span>. <span word="First">First</span>， <span word="the">the</span> <span word="symbiotic">symbiotic</span> <span word="association">association</span> <span word="is">is</span> <span word="so">so</span> <span word="well">well</span>-<span word="balanced">balanced</span> <span word="that">that</span> <span word="the">the</span> <span word="roots">roots</span> <span word="of">of</span> <span word="host">host</span> <span word="plants">plants</span> <span word="show">show</span> <span word="no">no</span> <span word="damage">damage</span> <span word="even">even</span> <span word="when">when</span> <span word="densely">densely</span> <span word="infected">infected</span>. <span word="Second">Second</span>， <span word="the">the</span> <span word="fungi">fungi</span> <span word="cannot">cannot</span> <span word="as">as</span> <span word="yet">yet</span> <span word="be">be</span> <span word="cultivated">cultivated</span> <span word="in">in</span> <span word="the">the</span> <span word="absence">absence</span> <span word="of">of</span> <span word="a">a</span> <span word="living">living</span> <span word="root">root</span>.</p>
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