高考总复习英语知识点大全84：情态动词MAY、MIGHT完成时.doc

1、高中英语知识点大全（84）：情态动词may/might +完成时1、manage vt. 经营；设法；对付She managed the house very well. 她把家管理得很好。We managed to finish the work ahead of time.我们设法提前完成了任务。I shant be able to manage without help.没有人帮助，我无法办到。辨析 manage to do sth. /try to do sth.manage to do sth. 意为“设法完成或做到某事”，强调已达到目的或出现了结果，含“成功”之意。try to d

2、o sth. 意为“试图或尽力做某事”，多表示一种企图或决心，而不表示一定成功。如：weve managed to make up for the lost time.我们设法把失去的时间补了回来。He tried to pass the examination,but failed.他努力想通过考试，但没成功。He managed to organize a live concert. = He succeeded in organizing a live concert.他设法组织了一次现场直播的音乐会。2、live live by it 赖为生；以为生（不可用于被动语态） Live by

3、(ones)pen 以笔耕为生live through(it) 活过，度过而不死（不可用于被动语态） live out 活着，熬过livelife过着生活 live a hard life过着艰苦的生活 live a miserable life过着悲惨的生活live a happy life 过着愉快的生活 live a quiet life过着安静的生活Einstein lived the rest of his life quietly in the USA. 爱因斯坦在美国安静地度过了他的余生。The working people are living a happy life now

4、. 劳动人民过着幸福的生活。3、“情态动词may/might +完成时”的结构的用法：may/might + have + 过去分词，表示推测过去某动作“可能”发生了。如：I cant find my sunglasses, I may/might have left them at therestaurant yesterday.一般来说，may和might两者意思上没什么区别，只是may比might表示的可能性大些。如：He may have heard of it from Jack.He might have heard of it from Jack.在下列情况下，may和might

5、 用法有区别：句子的主要动词是现在时，间接引语中用may/might;句子的主要动词是过去时，间接引语中只用might.如：He says that she may/might have misunderstood him.He said that she might have misunderstood him.might + have + 过去分词，表示对本来可能发生而实际并未发生的动作的感叹或遗憾含有“责备”、“抱怨”之意，而may+完成时无此含义。如：You might have told us earlier.This medicine might have cured your cough.