原形不定词与句型
<p> 1.原形不定词是无<span word="to">to</span>的不定词，即原形动词。</p><p> 主语部分有一个表示动作的动词<span word="do">do</span>时，作主语补语的不定词通常多用原形不定词。</p><p> <span word="All">All</span> <span word="that">that</span> <span word="we">we</span> <span word="do">do</span> <span word="every">every</span> <span word="day">day</span> <span word="is">is</span> <span word="study">study</span>.我们每天做的只是研读。</p><p> 2.<span word="would">would</span> <span word="ratherthan">ratherthan</span>后都要求原形不定词。</p><p> <span word="I">I</span> <span word="would">would</span> <span word="rather">rather</span> <span word="study">study</span> <span word="here">here</span> <span word="than">than</span> <span word="go">go</span> <span word="to">to</span> <span word="the">the</span> <span word="movies">movies</span>.</p><p> 我宁愿在这里学习也不愿去看电影。</p><p> 3.<span word="had">had</span> <span word="better">better</span>后要求接原形不定词。</p><p> <span word="We">We</span> <span word="had">had</span> <span word="better">better</span> <span word="finish">finish</span> <span word="our">our</span> <span word="homework">homework</span> <span word="today">today</span>.</p><p> 我们最好今天作完我们的作业。</p><p> 4.<span word="hope">hope</span>, <span word="expect">expect</span>, <span word="want">want</span>等动词，表示请求、想要、打算做某事时，后接不定词。</p><p> <span word="I">I</span> <span word="expect">expect</span> <span word="to">to</span> <span word="take">take</span> <span word="a">a</span> <span word="picnic">picnic</span> <span word="soon">soon</span>.</p><p> 我期待着尽早去郊游。</p><p> 5.原形不定词用在助动词后。</p><p> <span word="You">You</span> <span word="should">should</span> <span word="read">read</span> <span word="the">the</span> <span word="rules">rules</span> <span word="carefully">carefully</span> <span word="first">first</span>.</p><p> 你们应该先仔细阅读这些规则。</p><p> 6.<span word="for">for</span>+名词或代名词的宾格+不定词，在此结构中<span word="for">for</span>及其宾语构成的片语，实际上是不定词所表示的动作的逻辑主语，在句中可充当主语、宾语、补语及修饰语 。</p><p> <span word="Swimming">Swimming</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="learn">learn</span>.</p><p> 游泳对我来说不难学。</p><p> 7.原形不定词用在使役动词<span word="let">let</span>，<span word="make">make</span>， <span word="help">help</span>，<span word="have">have</span>后作宾语补语。</p>
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