不定词的作用
<p> 不定词在句子中不能独立充当述语动词，但可以充当其他各种句子成分，并可与某些助动词一起构成复合的述语动词。</p><p> 不定词在句中可以充当主语，述语动词一般要用单数形式。</p><p> <span word="To">To</span> <span word="forgive">forgive</span> <span word="is">is</span> <span word="divine">divine</span>.</p><p> 原谅别人是神圣的。</p><p> <span word="believe">believe</span>, <span word="consider">consider</span>, <span word="declare">declare</span>, <span word="feel">feel</span>, <span word="find">find</span>, <span word="imagine">imagine</span>, <span word="know">know</span>, <span word="prove">prove</span>, <span word="suppose">suppose</span>, <span word="think">think</span>, <span word="understand">understand</span>等动词后可作宾语补语的不定词主要是<span word="to">to</span> <span word="be">be</span>，<span word="to">to</span> <span word="be">be</span>常可省略。</p><p> <span word="I">I</span> <span word="consider">consider</span> <span word="the">the</span> <span word="host">host</span> （<span word="to">to</span> <span word="be">be</span>） <span word="too">too</span> <span word="lazy">lazy</span>.</p><p> 我认为男主人太懒。</p><p> 不定词一般在名词或代名词的后面作修饰语。</p><p> <span word="I">I</span> <span word="want">want</span> <span word="to">to</span> <span word="find">find</span> <span word="something">something</span> <span word="to">to</span> <span word="eat">eat</span>.</p><p> 我想找点东西吃。</p><p> 在<span word="tooto">tooto</span>, <span word="enough">enough</span> <span word="to">to</span>, <span word="soas">soas</span> <span word="to">to</span>, <span word="suchas">suchas</span> <span word="to">to</span>, <span word="only">only</span> <span word="to">to</span>等结构中的不定词作修饰语，表示结果。</p><p> <span word="too">too</span>+形容词或副词+不定词表示太而不能，不定词用肯定形式表示否定意义。</p><p> <span word="I">I</span> <span word="am">am</span> （<span word="too">too</span>） <span word="hungry">hungry</span> <span word="to">to</span> <span word="go">go</span> <span word="any">any</span> <span word="farther">farther</span>.</p><p> 我太饿了，走不动了。</p><p> 有时可用形式宾语 <span word="it">it</span> 代替不定词放在述语动词的后面，而将作真正宾语的不定词放在句尾，即主语+述语动词+<span word="it">it</span>+宾语补语（形容词、名词、代名词）+不定词。</p><p> <span word="I">I</span> <span word="feel">feel</span> <span word="it">it</span> <span word="our">our</span> <span word="duty">duty</span> <span word="to">to</span> <span word="help">help</span> <span word="others">others</span>.</p>
页:
[1]