英语语法定语从句知识点：关系代词as的用法
<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>1. 用于引导限制性定语从句，主要与<span word="such">such</span>, <span word="as">as</span>, <span word="the">the</span> <span word="same">same</span>连用，其意为像的凡是的一类的人(物)。如：</p><p><span word="Hes">Hes</span> <span word="not">not</span> <span word="such">such</span> <span word="a">a</span> <span word="fool">fool</span> <span word="as">as</span> <span word="he">he</span> <span word="looks">looks</span>.</p><p>他并不像看上去的那样愚蠢。</p><p><span word="He">He</span> <span word="is">is</span> <span word="not">not</span> <span word="such">such</span> <span word="a">a</span> <span word="man">man</span> <span word="as">as</span> <span word="would">would</span> <span word="leave">leave</span> <span word="his">his</span> <span word="work">work</span> <span word="half">half</span> <span word="done">done</span>.</p><p>他并不是一个做事半途而废的人。</p><p><span word="You">You</span> <span word="must">must</span> <span word="show">show</span> <span word="my">my</span> <span word="wife">wife</span> <span word="the">the</span> <span word="same">same</span> <span word="respect">respect</span> <span word="as">as</span> <span word="you">you</span> <span word="show">show</span> <span word="me">me</span>.</p><p>你必须对我妻子表现出与对我同样的敬重。</p><p><span word="He">He</span> <span word="smokes">smokes</span> <span word="as">as</span> <span word="expensive">expensive</span> <span word="a">a</span> <span word="cigarette">cigarette</span> <span word="as">as</span> <span word="he">he</span> <span word="can">can</span> <span word="afford">afford</span>.</p><p>他抽一种他买得起的最贵的烟。</p><p>2. 用于引导非限制性定语从句，根据情况可位于主句之前或之后，有时也可插在主句中间，其意为这件事这一点。如(<span word="www">www</span>.<span word="yygrammar">yygrammar</span>.<span word="com">com</span>)：</p><p><span word="He">He</span> <span word="is">is</span> <span word="late">late</span>, <span word="as">as</span> <span word="is">is</span> <span word="often">often</span> <span word="the">the</span> <span word="case">case</span>.</p><p>他迟到了，这是经常的事。</p><p><span word="As">As</span> <span word="is">is</span> <span word="usual">usual</span> <span word="with">with</span> <span word="children">children</span>, <span word="they">they</span> <span word="soon">soon</span> <span word="got">got</span> <span word="tired">tired</span>.</p><p>孩子们一贯如此, 他们很快就厌倦了。</p><p><span word="David">David</span>, <span word="as">as</span> <span word="you">you</span> <span word="know">know</span>, <span word="has">has</span> <span word="not">not</span> <span word="been">been</span> <span word="well">well</span> <span word="lately">lately</span>.</p><p>大卫最近身体不太好，这你是知道的。</p>
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