不定式主语
<p>1） <span word="It">It</span>’<span word="s">s</span> <span word="easy">easy</span> (<span word="for">for</span> <span word="me">me</span>) <span word="to">to</span> <span word="do">do</span> <span word="that">that</span>.我做这事太容易了 </p><p><span word="easy">easy</span>, <span word="difficult">difficult</span>, <span word="hard">hard</span>, <span word="important">important</span>, <span word="possible">possible</span>, <span word="impossible">impossible</span>, <span word="comfortable">comfortable</span>, <span word="necessary">necessary</span>, <span word="better">better</span>; </p><p><span word="the">the</span> <span word="first">first</span>, <span word="the">the</span> <span word="next">next</span>, <span word="the">the</span> <span word="last">last</span>, <span word="the">the</span> <span word="best">best</span>, <span word="too">too</span> <span word="much">much</span>, <span word="too">too</span> <span word="little">little</span>, <span word="not">not</span> <span word="enough">enough</span> </p><p> <span word="It">It</span>’<span word="s">s</span> <span word="so">so</span> <span word="nice">nice</span> <span word="to">to</span> <span word="hear">hear</span> <span word="your">your</span> <span word="voice">voice</span>. </p><p> 听到你的声音真高兴。 <span word="http">http</span>://<span word="yingyu">yingyu</span>.<span word="chazidian">chazidian</span>.<span word="com">com</span></p><p> <span word="It">It</span>’<span word="s">s</span> <span word="necessary">necessary</span> <span word="for">for</span> <span word="you">you</span> <span word="to">to</span> <span word="lock">lock</span> <span word="the">the</span> <span word="car">car</span> <span word="when">when</span> <span word="you">you</span> <span word="do">do</span> <span word="not">not</span> <span word="use">use</span> <span word="it">it</span>. </p><p> 当你不用车的时候，锁车是有必要的。 </p><p>2) <span word="It">It</span>’<span word="s">s</span> <span word="very">very</span> <span word="kind">kind</span> <span word="of">of</span> <span word="you">you</span> <span word="to">to</span> <span word="help">help</span> <span word="us">us</span>. 他帮助我们，他真好。 </p><p><span word="Kind">Kind</span>, <span word="nice">nice</span>, <span word="stupid">stupid</span>, <span word="rude">rude</span>, <span word="clever">clever</span>, <span word="foolish">foolish</span>, <span word="thoughtful">thoughtful</span>, <span word="thoughtless">thoughtless</span>, <span word="brave">brave</span>, <span word="considerate">considerate</span>(考虑周到的), <span word="silly">silly</span>, <span word="selfish">selfish</span>(自私的) </p><p>例句: </p><p> <span word="It">It</span> <span word="was">was</span> <span word="silly">silly</span> <span word="of">of</span> <span word="us">us</span> <span word="to">to</span> <span word="believe">believe</span> <span word="him">him</span>. 我们真愚蠢，竟然相信了他。 </p><p> <span word="It">It</span> <span word="seemed">seemed</span> <span word="selfish">selfish</span> <span word="of">of</span> <span word="him">him</span> <span word="not">not</span> <span word="to">to</span> <span word="give">give</span> <span word="them">them</span> <span word="anything">anything</span>. 他不给他们任何东西，这显得太自私了。 </p><p>注意：1) 其他系动词如，<span word="look">look</span>，<span word="appear">appear</span>等也可用于此句型 </p><p> 2) 不定式作为句子成分时，动词用单数形式。 </p><p> 3) 当不定式作主语的句子中又有一个不定式作表语时，不能用<span word="It">It</span> <span word="is">is</span>… <span word="to">to</span>…的句型 </p><p> (对)<span word="To">To</span> <span word="see">see</span> <span word="is">is</span> <span word="to">to</span> <span word="believe">believe</span>. 百闻不如一见。 </p><p> (错)<span word="It">It</span> <span word="is">is</span> <span word="to">to</span> <span word="believe">believe</span> <span word="to">to</span> <span word="see">see</span>. </p></p>
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