省略句知识点总结：含if的八种省略结构
<p> 【导语】英语语法让很多学生都头疼，因为复杂难懂的句式和词组有时难以记忆。英语网为大家整理了英语语法大全，希望对同学们的英语语法学习有所帮助。更多内容尽在英语网。</p><p> 类型一：<span word="if">if</span> + 形容词</p><p> 这类结构通常可视为在<span word="if">if</span>与形容词之间省略了主语+动词<span word="be">be</span>的适当形式。如：</p><p> <span word="Send">Send</span> <span word="the">the</span> <span word="goods">goods</span> <span word="now">now</span> <span word="if">if</span> <span word="ready">ready</span>.= <span word="Send">Send</span> <span word="the">the</span> <span word="goods">goods</span> <span word="now">now</span> <span word="if">if</span> <span word="they">they</span> <span word="are">are</span> <span word="ready">ready</span>.</p><p> 货物如已备好，请即送来。</p><p> <span word="If">If</span> <span word="true">true</span>, <span word="this">this</span> <span word="will">will</span> <span word="cause">cause</span> <span word="us">us</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="trouble">trouble</span>.= <span word="If">If</span> <span word="it">it</span> <span word="is">is</span> <span word="true">true</span>, <span word="this">this</span> <span word="will">will</span> <span word="cause">cause</span> <span word="us">us</span> <span word="a">a</span> <span word="lot">lot</span> <span word="of">of</span> <span word="trouble">trouble</span>.</p><p> 这事若是事实，它将给我们造成许多麻烦。</p><p> 注：这类省略结构中有的已构成相对固定的搭配，<span word="if">if</span> <span word="necessary">necessary</span> (如果需要)，<span word="if">if</span> <span word="possible">possible</span> (如果可能)等。如：</p><p> <span word="If">If</span> <span word="necessary">necessary</span>, <span word="ring">ring</span> <span word="me">me</span> <span word="at">at</span> <span word="home">home</span>. 如果必要，可往我家里打电话。</p><p> <span word="If">If</span> <span word="possible">possible</span>, <span word="let">let</span> <span word="me">me</span> <span word="know">know</span> <span word="beforehand">beforehand</span>. 如果可能，可在事前通知我。</p><p> 类型二：<span word="if">if</span> + 过去分词</p><p> 其中的过去分词可视为是被省略的被动结构，即在<span word="if">if</span>与形容词之间省略了主语和助动词<span word="be">be</span>。如：</p><p> <span word="He">He</span> <span word="will">will</span> <span word="come">come</span> <span word="if">if</span> <span word="asked">asked</span>.= <span word="He">He</span> <span word="will">will</span> <span word="come">come</span> <span word="if">if</span> <span word="he">he</span> <span word="is">is</span> <span word="asked">asked</span>.</p><p> 他如被邀就会来。</p><p> <span word="The">The</span> <span word="medicine">medicine</span> <span word="is">is</span> <span word="quite">quite</span> <span word="effective">effective</span> <span word="if">if</span> <span word="taken">taken</span> <span word="in">in</span> <span word="time">time</span>.=<span word="The">The</span> <span word="medicine">medicine</span> <span word="is">is</span> <span word="quite">quite</span> <span word="effective">effective</span> <span word="if">if</span> <span word="it">it</span> <span word="is">is</span> <span word="taken">taken</span> <span word="in">in</span> <span word="time">time</span>.</p>
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