职称英语理工类语法词汇常见考点：定语从句
<p> 形容词性从句：定语从句</p><p> 1.定语从句与同位语从句的区分</p><p> 1)引导词与先行词之不同：同位语从句的引导词表达的是抽象、概念，这类词较少，而定语从句的先行词可以为任何名词;</p><p> 2)结构：同位语从句的从属连词不在从句中充当任何语法成分，定语从句的关系代词在从句中必须充当一定的句子成分;</p><p> 3)作用：同位语从句解释、说明抽象名词的具体内容，定语从句对名词进行限定、修饰;</p><p> 2.限制定从与非限制定从的异同</p><p> 1)逗号为标志2)插入语结构是非限制定语从句。</p><p> 3.<span word="which">which</span>/<span word="that">that</span>与<span word="when">when</span>/<span word="where">where</span>/<span word="prep">prep</span>.+<span word="which">which</span>/<span word="whose">whose</span>的区别：</p><p> 4.<span word="that">that</span>与<span word="which">which</span>的选择：</p><p> 句子层面：限定与否角度，非限定性定语从句用<span word="which">which</span></p><p> 先行词层面：最高级;序数词;不定代词<span word="anything">anything</span>，<span word="nothing">nothing</span>，<span word="little">little</span>，<span word="all">all</span>，<span word="everything">everything</span>;被<span word="next">next</span>，<span word="last">last</span>，<span word="only">only</span>，<span word="very">very</span>等修饰，用<span word="that">that</span></p><p> 5.关系代词的省略</p><p> 1作主语不可以省略2作宾语可以省略3定语从句的先行词<span word="the">the</span> <span word="way">way</span>所带的<span word="in">in</span> <span word="which">which</span>可以省略</p><p> 6.限制性定语从句中可出现的插入语结构：</p><p> <span word="sb">sb</span>.+<span word="think">think</span>;<span word="believe">believe</span>;<span word="suppose">suppose</span>;<span word="know">know</span>;<span word="feel">feel</span>;<span word="wonder">wonder</span>;<span word="say">say</span>;<span word="be">be</span> <span word="afraid">afraid</span></p><p> 7.<span word="as">as</span>与<span word="which">which</span>用作关系代词的区别：</p>
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