代词一：it指示代词及其用法

代词一：it指示代词及其用法（精选4篇）

代词一：it指示代词及其用法 第1篇

指示代词(this,that,these,those)在句中可作主语、宾语、表语、定语：

This is yours and that is mine.这是你的，那是我的`。

I want this book, not that book.我要这本书，不是那本书。

I like these and he likes those.我喜欢这些，他喜欢那些。

These computers are cheap.这些电脑便宜些。

What I want to say is this.我想说的就是这点。

代词一：it指示代词及其用法 第2篇

人称代词it可以用来代替一个名词、一个短语、一个从句或一个句子，以避免它们在句中的重复。这时它可以指提到过的，也可以指未提到过的，在句中作主语或宾语。

(1)替代刚提到过的同一事物

This is our new car.I bought it yesterday.这是我们的新车。我昨天买的。(2)指动物或不考虑性别的婴儿

Where is the cat? It’s under the bed.猫在哪？它在床下面。The baby cried when it was hungry.这婴儿饿时就哭。(3)在情景中确认某人或事物

Who is it? It’s me.是谁？(问敲门人)是我呀。

Who’s it over there? It’s the milkman.那边那人是谁？那是送牛奶的 What’s this? It’s a map.这是什么？这是张地图。(4)指代前句或后句所述的情况

He smokes in bed and I don’t like it.他在床上抽烟，我不喜欢他这样。

When the factory closes, it will mean 500 workers will be out of work.工厂一旦关闭, 那就意味着要有500工人失业。

It would be ideal if you could join us.如果你能和我们合作，则太好了。(5)指时间、距离、天气或环境等

What time is it? It’s seven o’clock.几点了？7点。

It’s time for supper.=It’s time to have supper.是该吃晚饭的时候了。

It’s about 50 kilometers from here to my home.从这儿到我家约有五十公里。It is snowing.正在下雪

It was very quiet in the garden.公园里很寂静。(6)用于笼统地谈论某种情况 I cannot help it.我也没办法。(7)指最好的或最渴望得到事物

He thinks he’s it.他一直以为自己是最佳人选。That steak was really it!那牛排真是不错！

We’ve been looking for a house for months and I think this is it.我们找房子已经找了好几个月了, 我看这所就是我们要找的。it用作形式主语特殊句式小归纳

it用作形式主语有不少非常有用的句式，比如以下一些就值得注意： 1.用于it seems(appears)that…句式。如：

It seems that he knows everything.他好像什么都知道。It appears that we may be mistaken.看来我们可能弄错了。但是，英语一般不说it looks that…，可改用it looks as if…。如： It looks as if we’ll be late.我们似乎要迟到了。2.用于it happens(occurs)that…句式。如：

It happened that I was standing next to him when he collapsed.他倒下的时候我恰巧站在他旁边。

It didn’t occur to him that she would refuse his invitation.他没有想到她会拒绝他的邀请。3.用于it follows that…句式。如：

He is wrong, but it does not follow thatyou are right.他错了，但并不能由此推断你是对的。She’s not in the office but it doesn’t necessarily follow that she’s ill.她不在办公室, 并不见得就是病了。

哪些从句作主语时可用it作形式主语

原则上说，it用作形式主语可以代替下列从句： 1.that从句

It is quite clear that he has read the book.很显然，他读过这本书。(HM)2.what从句

It doesn’t matter what he says.他说什么没关系。(HM)It was clear enough what he meant.他的意思是很明显的。3.who从句

It hasn’t been decided who will be sent to work there.还没决定将派谁到那里工作。4.how从句

It struck her how gentle he was being.她深深感到他多么温存。5.when从句

It hasn’t been made clear when the conference is to take place.会议什么时候召开还没有宣布。

6.where从句

It’s not known where she went.她到哪里去了没人知道。It did not matter much where he lived.他在哪里住都没有关系。7.why从句

It was clear why he had asked for a conference.他为什么要求召开会议原因很清楚。8.whether从句

It makes little difference whether we go or stay.我们去还是留没有多大差别。It’s not yet settled whether I am going to America.我去不去美国还没定。

it用作形式主语代替动名词主要用于哪些句式

it用作形式主语代替动名词的用法主要见于以下句式：

1.It is no use(no good, fun, great fun, a new experience, a great honour, etc)doing sth。如： It is no good talking.空谈是没有用的。It’s fun working for him.为他工作很有意思。It’s great fun sailing a boat.扬帆驾舟十分有趣。

It’s no use shouting at him—he’s deaf.向他叫喊是没有用的——他耳聋。It has been a great honour your coming to visit us.你来看望我们是极大荣幸。2.It is good(nice, useless, interesting, pleasant, tiring, etc)doing sth。如： It is useless speaking.光说没有用。

It was pleasant sitting there.坐在那里很愉快。

It’s so nice sitting here with you.和你坐在一起真是愉快。It’s good hearing English spoken.听到人讲英语，我很高兴。

It’s terribly tiring working late like this.这样干到深夜是非常累人的。3.it is worth while doing sth。如：

It’s worth while doing the work.这项工作值得做。

Do you think it’s worth while quarrelling with me? 你认为和我吵值得吗? 4.其他句式。如：

It doesn’t matter wasting a little money.浪费一点钱没有关系。

It felt funny being dressed like a peasant girl.打扮成村姑感到有点怪怪的。What’s it like being married? 结婚是什么味道。

含it的9个常用特殊句型

1.It doesn’t matter…

It doesn’t matter what he says.他说什么都没关系。2.It appears/ seems/ happens/says that…

It seems that he is always correct.他好像总是对的。

It happened that I had no money with me.碰巧我当时没有带钱。3.It is said/ reported/ believed/ understood that… It is said that he has joined the Party.据说他已经入党了。4.It is a waste of time /money doing sth.It’s a waste of time your talking to him.你和他谈是浪费时间。5.(It is)no wonder(that)…

It’s no wonder he is not hungry;he has been eating sweets all day.难怪他不饿，他整天在吃糖果。

6.It makes no/mush difference…

It’s doesn’t make much difference my being there.我在不在那儿没有什么影响。7.it takes sb.some time to do sth.It took me nearly an hour to work out the problem.花了我差不多一个钟才做出那道题.8.It’s one’s turn to do sth.It’s my turn to clean the classroom.是轮到我打扫教室的了。9.If it were not for…

指示代词用法归纳 第3篇

This is my friend. 这是我朋友。

That is my brother. 那是我弟弟。

This is a bike and that is a bus. 这是自行车,那是公共汽车。

These are apples and those are oranges. 这些是苹果,那些是桔子。

◆this和that表示单数概念,后接单数名词; these和those表示复数概念,后接复数名词。this的复数形式是these, that的复数形式是those,它们在句中可作主语、定语、宾语和表语。例如:

This is a computer. 这是台电脑。(作主语)

This boy is Wang Tao. 这个男孩是王涛。(作定语)

I can’t do that, Mr Green. 格林先生,我不能做那事。(作宾语)

What I want is this. 我要的就是这个。(作表语)

◆使用指示代词还应注意以下几点:

◇在回答主语是this或that的一般疑问句或特殊疑问句时,通常用it来代替句中的this或that,以避免重复。例如:

——What’s this/that? 这/那是什么?

——It’s an egg. 这/那是鸡蛋。

◇在回答主语是these或those的一般疑问句或特殊疑问句时,通常用they来代替句中的these或those,以避免重复。例如:

——Are these/those apple trees? 这/那些是苹果树吗?

——No, they aren’t. 不,不是。

◇在电话用语中,this指代“我(I)”,that指代“你(you)”。例如:

⑴——Is that Mr Brown? 你是布朗先生吗?

——Yes, speaking. 是的,请讲。

⑵——Who’s that? 你是哪位?

——This is Liu Mei. 我是刘梅。

◇介绍某人时,单个人一般用 “This is…”,两人或两人以上一般用“These are…”,不可用人称代词he、she或they等。例如:

Mum, this is my English teacher, Miss Zhang. 妈妈,这是我的英语老师,张老师。

Lily, these are my friends, Tom, Li Jun and Wang Tao.

英语it用作人称代词的用法 第4篇

1. 用于指事物

it用作人称代词最基本的用法就是代替前面已提到过的事物，以避免重复：

This is my watch, it’s a Swiss one. 这是我的手表，它是瑞士制的。

I cannot find my watch; I must have lost it. 我找不到手表，我一定把它给丢了。

2. 用于指动物或婴儿

除用于指代事物外，还可指动物或性别不详的婴儿：

“Where is the cat?” “It’s under the bed.” “ 猫在哪儿?”“在床下。”

They got a baby and it was very lovely. 他们生了个孩子，很可爱。

3. 用于上文提到的情况

He smokes in bed and I don’t like it. 他在床上抽烟，我不喜欢他这样。

Her mother kept telling her not to go out at night, but it didn’t help. 她母亲老叫她晚上不要出去，但是没用。

4. 用于指人

it用于指人主要用确定未知人的身份：

“Who is it?” “It’s me.” “是谁啊?”“是我。”

“Listen. Someone is crying.” “Oh, it must be Mary.” “听，有人在哭。”“噢，一定是玛丽。”

Someone must have been here. But we have no idea who it was. 一定有人来过，但我们不知道是谁。

5. 指人时与he和she的区别

当it用于指人时，主要用于确定未知的或者是身份不明的人，若是指已知的或身份明确的人，则应根据情况使用he或she。比较：

I hear a knock at the door. It must be the postman. 我听见有人在敲门，一定是邮递员来了。

Jim is at the door. He wants to see you. 吉姆在门口，他想见你。

A tall man stood up and shook hands with her. It was the general manager. 一个高个子站起来同她握了手，他是总经理。

The general manager just called. He told us to wait for him at the gate. 总经理刚来过电话，他叫我们在门口等他。

6. 指物时与one的区别

两者均可代替前面提到的事物，区别是：it指的是与前面已提到的事物为同一物，此时的it等于“the (this, that, my...)+名词”;而one 指的是与前面已提到的事物为同一类物，此时的one等于“a+名词”。比较：

I have a dictionary but I’ve lent it to Mary. 我有一本词典，但把它借给玛丽了。