不定式中省略to的情况
<p>1) 情态动词 ( 除<span word="ought">ought</span> 外，<span word="ought">ought</span> <span word="to">to</span>)：</p><p>2) 使役动词 <span word="let">let</span>, <span word="have">have</span>, <span word="make">make</span>：</p><p>3) 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="notice">notice</span> , <span word="observe">observe</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，省略<span word="to">to</span>。</p><p>注意：在被动语态中则<span word="to">to</span> 不能省掉。</p><p><span word="I">I</span> <span word="saw">saw</span> <span word="him">him</span> <span word="dance">dance</span>.</p><p>=<span word="He">He</span> <span word="was">was</span> <span word="seen">seen</span> <span word="to">to</span> <span word="dance">dance</span>.</p><p><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>.</p><p>=<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>4) <span word="would">would</span> <span word="rather">rather</span>，<span word="had">had</span> <span word="better">better</span>：</p><p>5) <span word="Why">Why</span>&<span word="hellip">hellip</span>; / <span word="why">why</span> <span word="not">not</span>&<span word="hellip">hellip</span>;：</p><p>6) <span word="help">help</span> 可带<span word="to">to</span>，也可不带<span word="to">to</span>, <span word="help">help</span> <span word="sb">sb</span> (<span word="to">to</span>) <span word="do">do</span> <span word="sth">sth</span>：</p><p>7) <span word="but">but</span>和<span word="except">except</span>：<span word="but">but</span>前是动词<span word="do">do</span>时，后面出现的动词用不带<span word="to">to</span>的动词不定式。</p><p>8) 由<span word="and">and</span>, <span word="or">or</span>和<span word="than">than</span>连接的两个不定式，第二个<span word="to">to</span> 可以省去：</p><p>9) 通常在<span word="discover">discover</span>, <span word="imagine">imagine</span>, <span word="suppose">suppose</span>, <span word="think">think</span>, <span word="understand">understand</span>等词后，可以省去<span word="to">to</span> <span word="be">be</span>：</p><p><span word="He">He</span> <span word="is">is</span> <span word="supposed">supposed</span> (<span word="to">to</span> <span word="be">be</span>) <span word="nice">nice</span>. 他应该是个好人。</p><p>举例：</p><p><span word="He">He</span> <span word="wants">wants</span> <span word="to">to</span> <span word="move">move</span> <span word="to">to</span> <span word="France">France</span> <span word="and">and</span> <span word="marry">marry</span> <span word="the">the</span> <span word="girl">girl</span>.</p><p><span word="He">He</span> <span word="wants">wants</span> <span word="to">to</span> <span word="do">do</span> <span word="nothing">nothing</span> <span word="but">but</span> <span word="go">go</span> <span word="out">out</span>.</p><p>比较： <span word="He">He</span> <span word="wants">wants</span> <span word="to">to</span> <span word="do">do</span> <span word="nothing">nothing</span> <span word="but">but</span> <span word="go">go</span> <span word="out">out</span>.</p><p><span word="He">He</span> <span word="wants">wants</span> <span word="to">to</span> <span word="believe">believe</span> <span word="anything">anything</span> <span word="but">but</span> <span word="to">to</span> <span word="take">take</span> <span word="the">the</span> <span word="medicine">medicine</span>.</p><p>典型例题</p><p>1) ---- <span word="I">I</span> <span word="usually">usually</span> <span word="go">go</span> <span word="there">there</span> <span word="by">by</span> <span word="train">train</span>.</p><p>---- <span word="Why">Why</span> <span word="not">not</span> ___ <span word="by">by</span> <span word="boat">boat</span> <span word="for">for</span> <span word="a">a</span> <span word="change">change</span>?</p>
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