名词,代词,名词化了的动词,形容词,分词,副词,数词,动词不定式或不定式短语, 从句,某些稳定词组。例:She would be good for the job.她干这工作很符合。

名词作主语

例:The villagers didn't realize how serious the pollution was until the fish in the river died.直到河里的鱼死了,村民们才意识到混浊的严重性

S(subject主语)+ V(verb谓语动词) +O(object宾语). 主系表布局 :S(subject主语)+V(verb谓语动词,也称为系动词,即是所说的“系”)

倒装:Not until the fish in the river died did the villagers realize how serious the pollution was.

细心:倒装在主句,从句不倒装 /did 和not 提前,只剩动词事实

夸大:It was not until the fish died in the river that the villagers realized how serious the pollution was.

假如夸大的是主语或宾语且指人用who,其他一致用that。是that,而非其他/主句的按次(倒装不夸大,夸大就不倒装)

人称代词(主格),名词性代词,指导代词,不定代词,such(----样的人、物),it(时间,天色,距离等)

at midnight /in the(泛指)middle of the night

例:It is 9 o'clock when I went home.

我回家的时刻已经九点了

普通句:It was nine when I got home.

夸大句:It was at nine that I got home.

真相:I got home at nine.

夺目:作主语在句首/it作主语组成(经常使用 v-ing,不经常使用惟独 use,good)

(1)It is +adj. +of sb.(人的属性)/for sb.(物的属性)to do

例:It is necessary to finish the design before National day. Tomorrow is National day.

有须要在国庆节以前完成设计。来日诰日是国庆日

(2)it is +n.+for/of sb. to do

例:It is not good manners for Arabs to stand close talking to their friends.

对阿拉伯人来讲,和他们的好友讲话离得近不是一个好习惯

在感叹句中必须用it作体例主语:What a joy/ pleasure (it is) to read the book.

在问句中必须用表面主语:Is it possible to go to the moon by spaceship?:能够乘宇宙飞船去月球吗?

数词作主语

Ten out of 100 Americans are over /above /more than 65.

动名词作主语

普通 / 完成时

v-ing: 积极/doing/having done

not doing:被迫/being done/having been done

留心:doing 无时间局限/与谓语同时呈现/在谓语动词后产生having done产生在谓语以前

He still remembers being prized.

当逻辑主语为无生命的器械时

1.作主语时,每每示意一般性的无时间性的货色。而不定式示意某一种切实其实的手脚。

Smoking is habit difficult to break:吸烟的习惯很难冲破的

2.主语和表语一律

Seeing is believing:眼见为实

3.逻辑主语必须是所有格表面

The old man's taking pity on the snake leads to his death.谁人白叟同情那条蛇,招致他的死亡。

4.“it” 作形势主语:当表语为 no use,no good,no harm,any good,fun等名词或useless,nice,good,interesting,worthwhile等形容词时,句首罕用it作形势主语,动名词后置。句型罕用于阐明“某种活动或某件事变若何”

不定式作主语

To +动词究竟

Not to do 解说:还有动词的性子,作宾语,状语/还有名词的性子,作主语/还有形容词性子,作定语/还有副词的性子,作状语。除谓语不可作以外,其他均可。

通常式: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:体现举动产生在谓语之后,I want to go home.与谓语动词简直同时产生

to be doing :示意与谓语动词同时发生

to have done:爆发在谓语动词以前 Someone was considered to have done something.

to have been doing :行动从昔日开始一贯不断到谓语动词这个行动的发作

不定式默示一种肯定的行为To do morning exercises this morning is not good for your health:本日早晨去做早操对你的强壮不好

名词化的形容词:the poor /the sick

名词化的过去分词:the disabled

名词化的介词短语:From my home to school is three kilometers:从我家到私塾有三千米

副词----不定式或动名词

What an excitement to find a shark when you’re swimming in the sea.当你在大海中拍浮时,发现沙鱼是如许亢奋的事

句子作主语

1)that启发的从句,无意义,不承当句子成分,不省略

a. It +v+ that从句

b. It +系动词+表语+that 从句

c. It is strange that he didn't come here yesterday:稀罕的是,昨日他没来这边

当形容词为important necessary strange /that should +动词事实

It is strange that he should (示意惊诧)pass the exam:稀罕的是,他能够经过考核

2)It is +n +that 从句

What a pity it is that you didn't come to this party:真遗憾你没来这个团聚

当名词为a pity/a shame /a surprise +should +v事实(示意居然)

What a pity that she should be fail in exam:真遗憾,她居然考查不及格

3) It is +过去分词+that 从句

It is reported that a car accident happened there:据报道,发作一场车祸

从句s +be v-ed + inf.

He is said to be studying in the USA:传闻他在美国学习

有人推荐suggest/order/request + 从句 should +动词实情

4) It +动词本相seem/appear /turn out/+that

It seems that it will rain:看来要下雨

It strikes sb. that 从句 :默示“或人骤然想…”

It occurs to sb. that从句:透露表现“或人发生了…”

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