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动词不定式
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广告招租,e-mail:yesize@hotmail.com 不定式通常是由不定式符号to+ 动词原形构成,并有时态和语态的变化,一般式、进行体、完成体和完成进行体等形式。例如: I have some letters to post.我有几封信要寄。 You have no need to be worrying.你没必要焦虑。 He seem to have read that novel. 他好像已看过那本小说。 They were reported to have been flying across the Atlantic. 据报道,他们已在飞越大西洋。 不定式的被动形式是由to be + -ed分词或 to have been t + -ed分词构成。那么如何才能正确区分使用不定式的被动形式和主动形式呢:笔者认为,可以从下面两种情况来考虑:①句子中如果既找不出不定式动作的发出者(即逻辑主语),又不能在不定式的前边加上for sb.,用不定式的被动形式;②当主语或宾语是不定式动作所涉从的对象(即逻辑宾语)时,也用不定式的被动形式。例如: He didn’t want the matter to be disclosed.他不想让此事暴露出来。 They were all waiting for the matter to be discussed in public.他们都在等候公共讨论这件事。 I’m very sorry for the task not to have been finished in time. 我很抱歉,任务没有及时完成。 动词不定式的否定结构是在不定式符号前加上not: The teacher warned the students not to cheat in examinations.老师警告学生不要考试作弊。
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