不定式作表语的语法应用
<p>一、动词不定式的结构</p><p><span word="to">to</span>+动词原形</p><p>二、动词不定式作表语</p><p>1、表示目的。</p><p>例句：</p><p><span word="The">The</span> <span word="next">next</span> <span word="step">step</span> <span word="is">is</span> <span word="to">to</span> <span word="make">make</span> <span word="sure">sure</span> <span word="that">that</span> <span word="you">you</span> <span word="know">know</span> <span word="exactly">exactly</span> <span word="what">what</span> <span word="is">is</span> <span word="required">required</span>.下一步你要真正弄清楚需要的是什么。</p><p><span word="The">The</span> <span word="purpose">purpose</span> <span word="of">of</span> <span word="education">education</span> <span word="is">is</span> <span word="to">to</span> <span word="develop">develop</span> <span word="a">a</span> <span word="fine">fine</span> <span word="personality">personality</span> <span word="in">in</span> <span word="children">children</span>.教育的目的是发展儿童完美的品格。</p><p>2、表示事态发展的结果、预期的结果、不幸的命运或语言。</p><p>例句：</p><p><span word="He">He</span> <span word="was">was</span> <span word="to">to</span> <span word="perish">perish</span> <span word="in">in</span> <span word="a">a</span> <span word="shipwreck">shipwreck</span> <span word="and">and</span> <span word="to">to</span> <span word="l">l</span>-<span word="eave">eave</span> <span word="a">a</span> <span word="wife">wife</span> <span word="and">and</span> <span word="two">two</span> <span word="children">children</span>.后来他在一次船只失事中死了，留下了妻子和两个孩子。</p><p><span word="You">You</span> <span word="must">must</span> <span word="speak">speak</span> <span word="out">out</span>,<span word="if">if</span> <span word="we">we</span> <span word="are">are</span> <span word="to">to</span> <span word="remain">remain</span> <span word="friends">friends</span>.如果我们还想继续做朋友的话，你就必须痛痛快快地把话都说出来。</p><p><span word="You">You</span> <span word="are">are</span> <span word="to">to</span> <span word="die">die</span> <span word="at">at</span> <span word="ninety">ninety</span>-<span word="eight">eight</span>.你会在98岁时去世。</p><p>3、用于第一人称疑问句，表示征求意见。</p><p>例句：</p><p><span word="What">What</span> <span word="am">am</span> <span word="I">I</span> <span word="to">to</span> <span word="say">say</span> <span word="if">if</span> <span word="they">they</span> <span word="ask">ask</span> <span word="me">me</span> <span word="the">the</span> <span word="question">question</span>?要是他们问我这个问题，我该怎么回答呢?</p><p><span word="What">What</span> <span word="am">am</span> <span word="I">I</span> <span word="to">to</span> <span word="do">do</span> <span word="if">if</span> <span word="I">I</span> <span word="have">have</span> <span word="no">no</span> <span word="money">money</span>?如果没有钱，我该怎么办呢?</p><p>4、用于被动语态，相当于<span word="can">can</span>/<span word="could">could</span>,<span word="should">should</span>,<span word="ought">ought</span> <span word="to">to</span>,<span word="must">must</span>,具有情态意义。</p><p>例句：</p><p><span word="You">You</span> <span word="are">are</span> <span word="to">to</span> <span word="be">be</span> <span word="rewarded">rewarded</span>.你应该受到奖励。(<span word="should">should</span>)</p>
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