中考英语语法详解：动词不定式
<p> 不定式的构成非常简单，告诉我是什么？对！是<span word="to">to</span>+动词原形。当然啦，<span word="to">to</span>有时也可以不带。动词不定式没有人称和数的变化，可以担当除谓语外的任何句子成分。那什么时候 可以不带<span word="to">to</span>呢?</p><p> 不定式省<span word="to">to</span>有四种情况：</p><p> 使役动词 <span word="let">let</span>,<span word="have">have</span>,<span word="make">make</span> 等后接不定式。如：<span word="Let">Let</span> <span word="him">him</span> <span word="go">go</span>! 让他走!</p><p> <span word="would">would</span> <span word="rather">rather</span>，<span word="had">had</span> <span word="better">better</span>后。如：<span word="You">You</span> <span word="had">had</span> <span word="better">better</span> <span word="stay">stay</span> <span word="at">at</span> <span word="home">home</span>.你最好呆在家里。</p><p> <span word="Why">Why</span>... / <span word="why">why</span> <span word="not">not</span>...后。如：<span word="Why">Why</span> <span word="not">not</span> <span word="have">have</span> <span word="a">a</span> <span word="good">good</span> <span word="rest">rest</span> <span word="on">on</span> <span word="Sunday">Sunday</span>?为什么星期天不好好休息一下呢?</p><p> 感官动词 <span word="see">see</span>, <span word="watch">watch</span>, <span word="look">look</span> <span word="at">at</span>, <span word="hear">hear</span>, <span word="listen">listen</span> <span word="to">to</span>, <span word="smell">smell</span>,<span word="feel">feel</span>, <span word="find">find</span> 等后作宾补，省<span word="to">to</span>。如：<span word="I">I</span> <span word="saw">saw</span> <span word="him">him</span> <span word="dance">dance</span>. 我看见他跳舞。注意：这些情况在被动句中可千万不可省<span word="to">to</span>哟！ 如：<span word="The">The</span> <span word="boss">boss</span> <span word="made">made</span> <span word="them">them</span> <span word="work">work</span> <span word="the">the</span> <span word="whole">whole</span> <span word="night">night</span>.变成被动句：<span word="They">They</span> <span word="were">were</span> <span word="made">made</span> <span word="to">to</span> <span word="work">work</span> <span word="the">the</span> <span word="whole">whole</span> <span word="night">night</span>.</p><p> 不定式的特殊用法：</p><p> <span word="It">It</span>与不定式：动词不定式可以做主语，但如果动词不定式太长，显得头重脚轻的，那么我们就可用形式主语<span word="it">it</span>代替，而把真正主语(即不定式)放于句尾。</p><p> 如: <span word="It">It</span> <span word="is">is</span> <span word="not">not</span> <span word="difficult">difficult</span> <span word="for">for</span> <span word="me">me</span> <span word="to">to</span> <span word="study">study</span> <span word="English">English</span> <span word="well">well</span>.(对我来说学好英语是可能的。)不定式还可以充当句子的宾语，但有些动词，如<span word="find">find</span>，<span word="think">think</span>，<span word="believe">believe</span> 等，这样的不定式可继续充当其宾语的作用。如: <span word="I">I</span> <span word="found">found</span> <span word="it">it</span> <span word="difficult">difficult</span> <span word="to">to</span> <span word="fall">fall</span> <span word="asleep">asleep</span>.我发现很难入睡。</p>
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