初二英语上册英语语法精讲精练：英语中的省略
<p> 在英语中，为了避免重复，句子中的某些部分经常省略，给考生的理解增加了困难。现对省略现象总结如下:</p><p> 一、并列复合句中某些相同成分的省略。</p><p> 1. <span word="This">This</span> <span word="beeper">beeper</span> <span word="works">works</span> <span word="well">well</span>，<span word="but">but</span> <span word="that">that</span> <span word="one">one</span> <span word="doesnt">doesnt</span> (<span word="work">work</span> <span word="well">well</span>).</p><p> 这个寻呼机工作正常，但那个就不行。</p><p> 2. <span word="All">All</span> <span word="uranium">uranium</span> <span word="atoms">atoms</span> <span word="do">do</span> <span word="not">not</span> <span word="have">have</span> <span word="the">the</span> <span word="same">same</span> <span word="atomic">atomic</span> <span word="weight">weight</span>. <span word="Some">Some</span> <span word="of">of</span> <span word="them">them</span> <span word="weigh">weigh</span> 234 <span word="units">units</span>，<span word="some">some</span> (<span word="of">of</span> <span word="them">them</span>) (<span word="weigh">weigh</span>) 235 <span word="units">units</span>，<span word="and">and</span> <span word="some">some</span> (<span word="of">of</span> <span word="them">them</span>) (<span word="weigh">weigh</span>) 238 <span word="units">units</span>.所有的铀原子并非都有相同的原子量。其中有的重234，有的重235，而有的重238。</p><p> 二、在<span word="when">when</span>，<span word="while">while</span>，<span word="if">if</span>，<span word="as">as</span> <span word="if">if</span>，<span word="though">though</span>(或<span word="although">although</span>)，<span word="as">as</span>，<span word="until">until</span>，<span word="once">once</span>，<span word="wheth">wheth</span> <span word="er">er</span>，<span word="unless">unless</span>，<span word="where">where</span>等连词连接的状语从句中，常省略跟主句相同的主语和<span word="be">be</span>动词。</p><p> 1. <span word="When">When</span> (<span word="water">water</span> <span word="is">is</span>) <span word="pure">pure</span>，<span word="water">water</span> <span word="is">is</span> <span word="a">a</span> <span word="colorless">colorless</span> <span word="liquid">liquid</span>.</p><p> 水纯净时，是无色的液体。</p><p> 2. <span word="When">When</span> (<span word="I">I</span> <span word="am">am</span>) <span word="in">in</span> <span word="trouble">trouble</span> <span word="I">I</span> <span word="always">always</span> <span word="turn">turn</span> <span word="to">to</span> <span word="her">her</span> <span word="for">for</span> <span word="help">help</span>.</p><p> 我困难时总是找她帮助。</p><p> 3. <span word="Errors">Errors</span>，<span word="if">if</span> <span word="any">any</span>，<span word="should">should</span> <span word="be">be</span> <span word="corrected">corrected</span>.</p><p> 如果有什么错误，就应当改正。(<span word="if">if</span>后省略了<span word="there">there</span> <span word="are">are</span>)</p><p> 4. <span word="Wood">Wood</span> <span word="gives">gives</span> <span word="much">much</span> <span word="smoke">smoke</span> <span word="while">while</span> (<span word="wood">wood</span> <span word="is">is</span>) <span word="burning">burning</span>.</p><p> 木头燃烧时，它放出很多烟。</p><p> 5. <span word="The">The</span> <span word="letter">letter</span> <span word="is">is</span> <span word="to">to</span> <span word="be">be</span> <span word="left">left</span> <span word="here">here</span> <span word="until">until</span> (<span word="it">it</span> <span word="is">is</span>) <span word="called">called</span> <span word="for">for</span>.</p>
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