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2019-2020年高中英语 第二册 语法总结 非谓语动词之不定式1定义:具有名词、形容词及副词性质并具有时态、语态变化。2形式:(以do为例) 主动语态 被动语态一般时 to do to be done进行时 to be doing完成时 to have done to have been done完成进行时 to have been doing3用法:(1)用作主语:To speak good English is not easy.or: It is not easy to speak good English.(采用形式主语 it 以避免头重脚轻)It took me an hour to do the work.(2)用作宾语:She decided to take the examination.I hope to meet him soon.(3)宾语补足语:They expected us to help them.Hewants his son to study hard.金牌重点:不定式作宾补,如谓语动词是感官动词,使役性动词(see, hear, notice, watch, make, have, let.),则不定式符号“to”须省略,但在被动语态中不能省。I heard them sing in the classroom.I made her clean the room.The girl is heard to sing an English song.(4)用作表语:To teach is to learn.His job is to sell cars.(5)用作状语,表示目的,结果:We e to school to study English.(目的) = in order toI hurried to the store, only to find it closed.(结果)(6)定语:不定式短语作定语须位于名词之后。He asked for a piece of paper to write it on. = to write it on the piece of paper.The poor man has no house to live in. = to live in the house.Have you anything to do? = to do anything4不定式的时态意义:She seems to dance very well.(现在情况)She seems to be dancing in the dancing hall.(正在进行)She seems to have danced well.(过去情况)Has was happy to have been staying with his uncle.(动作持续一段时间)5不定式语态:The doctor wremendremended/w him to air the room.The doctor remended the room to be aired.She expects the police to find her bicycle.She expects her bicycle to be found by the police.She felt a bit puzzled as he had asked her such a question.She felt a bit puzzled to have been asked such a question.6不定式否定形式:not to do .He got up early in order not to miss the train.测试精编1. Did you find out _ the pie out of oven?A. to take B. have taken C. when to take D. being taken2. You would be irritated if you watched the mail _ on your desk every day.A. putting up B. to be put up C. to pile up D. pile up3. We shall set Jim _ the passage.A. explaining B. explained C. to explain D. explain4. In fact, she would rather leave for San Francisco _ in Los Angeles.A. tostay B. than stay C. than staying D. than have stayed5. Madame Curies is believed _ the radium.A. discovering B. having discovered C. to have discovered D. to discover(后设答案,大家不要偷看哦(*_*) 嘻嘻)KEYS1. C 2. D 3. C 4. B 5. C
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