主语有哪些,主语+谓语+宾语例句


哪些是主语? 主语是执行句子的行为或动作的主体 , 如“我写字”中的“我” , 就是主语 , 它做出“写”这个动作 。 “写”则是谓语 , 而“字”是接受谓语“写”这个动作的对象 , 它因此被称为宾语 , 有的语法书也称它为“客体”或“受体” 。 主语可以这些列词类或形式来担任:名词 , 代词 , 名词化了的动词 , 形容词 , 分词 , 副词或数词等 , 动词不定式或不定式短语 , 从句 , 某些固定词组的第二格 。
作主语的词:名词 , 代词 , 名词化了的动词 , 形容词 , 分词 , 副词或数词等 , 动词不定式或不定式短语 ,  从句 , 某些固定词组的第二格 。
1. 名词作主语
直到河里的鱼死了 , 村民们才意识到污染的危害 。 The villagers didn't realize how serious the pollution was until the fish in the river died. S+ V t +O. 主系表结构 :S+V 倒装:Not until the fish in the river died did the villagers realize how serious the pollution was. 注意:倒装在主句 , 从句不倒装 /did 和not 提前 , 只剩动词原形 强调:It was not until the fish died in the river that the villagers realized how serious the pollution was. 如果强调的是主语或宾语且指人用who , 其他一律用that 。 是that , 而非其他/主句的顺序((倒装不强调 , 强调就不倒装))
2.代词作主语
人称代词(主格) , 名词性代词 , 指示代词 , 不定代词 , such(----样的人、物) , it(时间 , 天气 , 距离等) at midnight /in the(泛指)middle of the night It is 9 o'clock when I went home. It was ten when I got home.一般句 It was at ten that I got home.强调句 I got home at ten.原形 注释:作主语在句首/it作主语构成(常用 v-ing , 不常用只有 use , good) It is +adj. +of sb.(人的属性)/for sb.(物的属性)to do It is necessary to finish the design before National day. Tomorrow is National day. it is +n.+for/of sb. to do It is not good manners for Arabs to stand close talking to their friends. It is a great honor for us to be invited to the party. 在感叹句中必须用it作形式主语:What a joy/ pleasure (it is) to read the book. 在问句中必须用形式主语:Is it possible to go to the moon by spaceship?
3.数词作主语
Ten out of 100 Americans are over /above /more than 65.
4.动名词作主语
一般 / 完成时 v-ing: 主动/doing/having done not doing:被动/being done/having done 注意:doing 无时间限定/与谓语同时出现/在谓语动词后发生having done发生在谓语之前 He still remembers being prized. 当逻辑主语为无生命的东西时 a.作主语时 , 通常表示一般性的无时间性的东西 。 而不定式表示某一种具体的动作 。 Smoking is hobbit difficult to break. b.主语和表语一致 Seeing is believing. c.逻辑主语必须是所有格形式 Smoking kills. d. it 作形式主语:It is no use/good----- The old man's taking pity on the snake leads to his death.那个老头怜悯那条蛇 , 导致他的死亡 。
5.不定式作主语
To +动词原形 Not to do 解释:具有动词的性质 , 作宾语 , 状语/具有名词的性质 , 作主语/具有形容词性质 , 作定语/具有副词的性质 , 作状语 。 除谓语不可作之外 , 其他都可 。 一般式:to do 进行时:to be doing 完成时:to have done 完成进行时:to have been doing to do:表示动作发生在谓语之后 , I want to go home.与谓语动词几乎同时发生 to be doing :表示与谓语动词同时发生 to have done:发生在谓语动词之前 Someone was considered to have done something. to have been doing :动作从过去开始一直持续到谓语动词这个动作的发生 不定式表示一种确定的动作 To do morning exercises this morning is not good for your healthy.

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