中考复习手册：初中英语动词不定式用法梳理
<p> 动词不定式是由不定式符号<span word="to">to</span>+动词原形构成的一种非谓语动词结构。有些动词不定式不带<span word="to">to</span>，动词不定式可以作句子的主语、表语、宾语、定语、补语、状语或单独使用。不定式保留动词的某些特性，可以有自己的宾语、状语等。动词不定式和它后面的宾语、状语等一起构成短语，叫作不定式短语。现对九年级动词不定式的用法作一次简要梳理。</p><p> 一、用作主语</p><p> 直接把动词不定式置于句首的情况不多，多数情况用<span word="it">it</span>作形式主语，把真正的主语动词不定式置于句末，特别是不定式短语较长时。动词不定式作主语，谓语动词用第三人称单数形式。带疑问词的不定式短语作主语常置于句首，复合不定式结构作主语常置于句末。如：</p><p> 1.<span word="As">As</span> <span word="young">young</span> <span word="adults">adults</span>, <span word="it">it</span> <span word="is">is</span> <span word="our">our</span> <span word="duty">duty</span> <span word="to">to</span> <span word="try">try</span> <span word="our">our</span> <span word="best">best</span> <span word="to">to</span> <span word="deal">deal</span> <span word="with">with</span> <span word="each">each</span> <span word="challenge">challenge</span>... (<span word="p">p</span>.8)</p><p> 2.<span word="The">The</span> <span word="head">head</span> <span word="teacher">teacher</span> <span word="said">said</span> <span word="it">it</span> <span word="was">was</span> <span word="necessary">necessary</span> <span word="to">to</span> <span word="talk">talk</span> <span word="with">with</span> <span word="his">his</span> <span word="mother">mother</span>. (<span word="p">p</span>.16)</p><p> 3.<span word="How">How</span> <span word="to">to</span> <span word="make">make</span> <span word="requests">requests</span> <span word="politely">politely</span> <span word="is">is</span> <span word="important">important</span>.(<span word="p">p</span>.93)</p><p> 二、用作表语</p><p> 动词不定式作表语，常说明主语的内容、性质、特征。如：</p><p> 1.<span word="The">The</span> <span word="best">best</span> <span word="way">way</span> <span word="to">to</span> <span word="improve">improve</span> <span word="your">your</span> <span word="English">English</span> <span word="is">is</span> <span word="to">to</span> <span word="join">join</span> <span word="an">an</span> <span word="English">English</span> <span word="club">club</span>. (<span word="p">p</span>.7)</p><p> 2.<span word="The">The</span> <span word="first">first</span> <span word="thing">thing</span> <span word="is">is</span> <span word="to">to</span> <span word="greet">greet</span> <span word="the">the</span> <span word="teacher">teacher</span>. (<span word="p">p</span>.96)</p><p> 三、用作宾语</p>
页:
[1]