1 非谓语动词动词不定式动词不定式是一种非谓语动词，由不定式符号to 加原形动词构成，动词不定式保留着动词的一些特征：(1)带宾语或表语。例如：I want to watch TV.I hope to be an outstanding student. (2)可由状语修饰。例如：I expect you to study hard. (3)有时态和语态的变化。例如：I ’ m sorry to have kept you waiting. （完成时）The questions to be answered are on page 10.（被动式）动词不定式和它的宾语，状语，或表语一起构成不定式短语。不定式或不定式短语具有名词，形容词，和副词的性质，因而可以在句中作主语，宾语，表语，定语，和状语。在不定式符号to 前加上 not 构成不定式的否定式。例如：He told me not to touch the wire. I. 动词不定式的句法作用1.作主语To master a foreign language is very important. Not to smoke will do you a lot of good. To obey the laws is everyone’ s duty.动词不定式作主语时，常常用先行词it 作形式主语，放在句首，将不定式移到谓语之后作实际主语。例如：It is difficult to answer such a complicated question in English. It has been possible to send man to space.It takes the electronic computer only a few seconds to solve the problem. Example: ______ only five minutes to finish the task. a. It took myself b. It required me c. It should be needing d. It took me 2.作表语Our main task is to carry these building materials to the work site. The most common way of getting heat is to burn fuel.Our goal is to accomplish the modernization of agriculture, industry, national defence, and science and technology. Example: My job ______ these children. a. was to look after b. was looking c. is to looking after d. has looked after 3．作宾语在及物动词begin, cease, choose, continue, decide, expect, fail, forget, happen, hate, help, hope, intend, like, love, manage, mean, offer, plan, prefer, prepare, promise, refuse, remember, try, want, wish 等后边常用不定式作宾语。...
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