内容正文:
it的用法
《英语 基础模块2》(语文版2022版)
Unit 10 Being a Volunteer语法
导
入
目
录
01. 人称代词it的用法
02. 非人称代词it
03. it作形式主语和形式宾语
04. 其他it固定句型
05. 巩固练习
I
人称代词it的用法
1. 指前文提到的事物,以避免重复:
eg.There is a cat on the desk. It looks like a hat.
eg. Look,that’s a baby! It looks like a doll.
2. 指不明性别的婴儿或不明身份的人:
I
人称代词it的用法
3.代替指示代词this/that
eg.Is this your wallet? No, it isn’t.
I
it作非人称代词
time
date
distance
It was nearly midnight when she came back.
It is a fine day.
It is April 1st today.
It is over 1000 kilometers from Beijing to Xi’an.
temperature
It is 30 ℃ today.
environment
It’s quiet here.
weather
I
it作形式主语
为了避免将句中作真实主语的不定式短语、-ing分词短语和主语从句置于句首造成头重脚轻,习惯上用it作形式主语来指代后面的真实主语.
eg. It is wrong to tell a lie.
1.代替不定式短语
eg. It is necessary to buy that dictionary.
I
it作形式主语
为了避免将句中作真实主语的不定式短语、-ing分词短语和主语从句置于句首造成头重脚轻,习惯上用it作形式主语来指代后面的真实主语.
eg. It is no use going there so early.
2.代替-ing分词短语
eg. It is no use learning without thinking.
I
it作形式主语
为了避免将句中作真实主语的不定式短语、-ing分词短语和主语从句置于句首造成头重脚轻,习惯上用it作形式主语来指代后面的真实主语.
eg. It is said that Mary is leaving for London tomorrow.
3.代替主语从句
eg. It is certain that we shall succeed.
I
it作形式宾语
当复合宾语中是以不定式短语、-ing分词短语或名词从句作宾语时,常用it作形式宾语,而把真正的宾语放在宾语补足语之后.
eg. He thought it best to put on his cap.
1.代替不定式短语
eg. I consider it important to ask the teacher.
I
it作形式宾语
当复合宾语中是以不定式短语、-ing分词短语或名词从句作宾语时,常用it作形式宾语,而把真正的宾语放在宾语补足语之后.
eg. Do you consider it any good trying again?
2.代替-ing分词短语
eg.I found it no use arguing with him.
I
it作形式宾语
当复合宾语中是以不定式短语、-ing分词短语或名词从句作宾语时,常用it作形式宾语,而把真正的宾语放在宾语补足语之后.
eg. Didn't I make it clear to you that I was not coming?
3.代替宾语从句
eg.We found it strange that no one would take the money.
I
it常用句型
1. It’s+adj.+(for/ of sb.+) to do sth.
eg. It is hard to finish the work on time.
eg. It is kind of you to help me.
形容词修饰“事”用for/形容词修饰“人”用of
eg. It is important for you to work out the problem.
I
it常用句型
2.It is + 名词 + to do sth.
eg. It is my pleasure to help you.
eg. It is a good idea to do exercise every morning.
I
it常用句型
3.It is time (for sb.) for sth./to do sth.
eg. It is time for class.
eg. It is time for you to give a talk.
I
it常用句型
4.It takes sb. some time to do sth.
eg. It takes him 20 minutes to drive to the office every day.
eg. It takes her a week to finish reading this book.
I
it常用句型
5.It is / has been + 时间段+since...
eg. It’s/ has been more than ten years since we met one another last time.
eg. It’s/ has been twenty years since he gave up smoking.
I
it常用句型
6.It + is + the first/ second/ third time + that...(现在完成时)
eg. It is the first time that I have seen the film.
eg. It’s the second time that she has read Treasure Island.
I
it常用句型
7.It + was + the first/ second/ third time + that...(过去完成时)
eg. It was the third time that he had been the natural museum.
eg. It was the fourth time that my cousins had visited me.
。I
it常用句型
8.It was +时间段+ before... “过了多久才......”
eg. It was five days before he came back.
eg. It was two years before we met again.
。I
it常用句型
9. It is/was + 被强调部分 + that/who + 其他成分
eg. It was my sister who/that prepared the dinner for us.
eg. It was last winter that we visited Harbin.
1.It takes me half an hour ________ to school every morning. And it is good for my health.
A.walk B.to walk C.walking D.walked
2.________ is easy for me to make some strawberry (草莓) cakes.
A.It B.You C.She D.We
3. ________ is far from Beijing to New York.
A.It B.That C.This D.One
4.________ is three hundred kilometres away from here to Baoding.
A.This B.That C.There D.It
5.—Who's this in the picture?—Is _______ Tom?
A.this B.that C.it D.he
巩固练习
一、单选题
Summary
01. 人称代词it的用法
02. 非人称代词it
03. it作形式主语和形式宾语
04. 其他it固定句型
Thanks
$