专升本英语考点:非谓语动词 —— 动名词.docx
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1、1. 动名词的构成和特征动名词一般由“动词原形 +-ing”构成。及物动词的动名词可以带宾语,也可以被状语修饰。不及物动词的动名词不可以带宾语,但可以被状语修饰;若要带宾语,则应加上相应的介词。带有宾语或状语的动名词称为动名词短语,如 reading a book slowly。其否定式是在动名词前加 not。2. 动名词的句法功能动名词在句中起名词的作用,可以作主语、表语、定语、动词宾语和介词宾语。(1)作主语。动名词(短语)作主语一般直接放在句首,谓语动词常用单数形式。Refusing invitations is not always easy.拒绝邀请并不总是容易的。Having co
2、nfidence in yourself is the secret of success. 相信自己是成功的秘诀。Saying I m sorry is very difficult, but all you need is just courage.说对不起很难,但你需要的只是勇气。Drinking too much alcohol is harmful to ones health. 饮酒过多对健康有害。注意:动名词与不定式都可以作句子的主语,其区别在于:动名词作主语常表示一般的或习惯性的动作,不定式作主语常表示具体的、某一次的或将来的动作。如:Getting up early is c
3、onsidered a good habit.早起被认为是一个好习惯。To accept their offer will be foolish.接受他们的提议是愚蠢的。知识拓展动名词也可以有逻辑主语,一般规则是:逻辑主语是有生命的名词或代词时,用名词所有格或形容词性物主代词。动名词若作主语,其逻辑主语是名词时只能用所有格形式。动名词若作宾语,其逻辑主语是名词时也可不用所有格形式,直接用名词即可;其逻辑主语是代词时也可用宾格。如:Her coming here will be a great help.她到这里来将大有帮助。Marys coming home is a great pleasu
4、re for her family, especially for her parents.玛丽回家这件事她的家人,尤其是她的父母,非常高兴。I dont like Jack and Tom speaking ill of each other in public places.我不喜欢杰克和汤姆在公共场合说彼此的坏话。His wife doesnt like his/ him playing computer games.他的妻子不喜欢他玩电脑游戏。在It is no use(no good,a waste of time)+doing.结构中,It 作形式主语,真正的主语是后面动名词(短语
5、).It is no use worrying about something that hasnt happened yet.为还没有发生的事情担心是无用的。It is no good learning without practice.只学习不实践是无益的。It is a waste of time asking him for help.向他请求帮助是浪费时间。There is no doing.为常见结构,相当于 It is impossible to do.。There is no denying that quicker action could have saved them.无
6、可否认,如果行动快一点,本来是救得了他们的。There is no accounting for taste. 人各有所好。(2)作表语。Her job is washing clothes, cleaning and taking care of the children.她的工作是洗衣服 打扫卫生和照顾孩子。The real difficulty is getting to know the needs of the customers.真正的难题是了解客户的需求。(3)作定语。有时动名词还可以放在名词之前作定语,如 reading materials(阅读材料), teaching me
7、thods(教学方法)等。A washing machine can help you save a lot of time and energy.洗衣机可以帮助你节省很多时间和精力。No one is allowed to speak aloud in the reading room.阅览室里不准任何人大声喧哗。(4)作动词宾语。以下及物动词(短语)常用动名词作宾语,而不能用动词不定式作宾语,如 admit,advise,advocate(提 倡),allow,appreciate,avoid,consider, delay,deny, discuss, dislike,enjoy,esc
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