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1、it的基本用法
(1)代替前文提到过的事物(物、动植物、不认识或幼孩)。
The train has arrived. It arrived half an hour ago. There is a e.
(2)用以代替 指示代词this, that。
—What’s this? —It’s a knife.
—Whose watch is that? —It’s mine.
(3)指环境情况、天气、时间、距离、季节等。
—What time is it? —It’s eight o’clock.
It was very noisy (quiet) at the very moment.
It often rains in summer here.
It is a long way to the school.
(4)作形式主语。(指代句尾的to do/doing/从句)
it is bad manners to come late to class.
It is no use crying over se.
(5)作形式宾语。(指代句尾的to do/doing/从句)
I think it no use arguing with him.
I found it very interesting to learn English.
He made it clear that he didnt want to attend that party.
(6)用于强调结构。
it is/was +强调部分+ who/that + 句子的剩余部分
(1)It is +adj./n +(of/for sb.)+to do sth.
its imfortable, necessary,better等。)
its kind _____ you to hele.
(of sb一般用表示人物的性格,品德的形容词后,如kind, nice, stuan to get a living.
for
of
for
it 做形式主语常用句型it 指代to do sth. 的句型
It is + 名词 + to do sth.
常用于该句型的名词有:manners, duty, fun, good, a great honour等。
作为学生,上课迟到是没有礼貌的。
As a student, it is bad manners to come late to class.
向政府交税是我们的义务。
It is our duty to ent.
(3) It is + one’s turn + to do sth.
轮到某人做某事
今天该轮到他送孩子们上学了。
It is his turn to take the children to school.
(2) It takes + (sb.) + some time / some money + to do sth.
做某事花去某人多长时间
我花了三天准备那次考试。
It took me three days to ination.
(4) It is + u all the help we can.
我们理应竭尽所能地给予他们帮助。
it 指代doing sth的句型
It is + 名词/形容词 + doing sth. 做某事是… …
用于该句型的名词有:no good, no use, useless, a waste of time等。
和他谈论此事是浪费时间。
It’s a waste of time talking to him about it.
事已至此,后悔也无用。(牛奶已泼,哭也没用。)
It’s no use/good (in) crying over silk.
(1)It is +adj./n. that sb (should) do sth.(虚拟语气)
it is ime to our meeting tomorrow.
it is a shame that he (should) speak to his parents like that.
it 指代从句的句型
it 指代从句的句型
(2) It + be + -ed 分词 + that从句 据… …
It is said that… 据说
It is reust be remembered that…务必记住的是
It is said that he has gone to the USA for further study.
据说他已去美国深造了。
It is known to all that light tra
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