新人教选修六 Unit 3 A healthy life-Grammar[课件]
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人教课标版
高二 选修6
Unit 3
Grammar
it的用法
Discovering “It”
It rains heavily.
2. It is 20 kilometers from Granddad's house to James’.
3. It is November 11, 2005.
4. It is 9 o’clock at night.
5.It'll be lovely in the garden tonight．
6. It is bad to smoke.
7. It is likely that he will succeed.
天气
距离
日期
时间
形式主语
环境
形式主语
做形式主语
不定式
It is important to know your limitations.
知道自己的局限性是很重要的。
替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。
e.g. It is a good idea to have a little notebook handy. 手边有个小笔记本是个好主意。
e.g. It is against the law to do that. 这样做是违法的。
e.g. It gives me great pleasure to see the movie. 观看电影让我很高兴。
2) 动名词
用no good, no use, great fun等名词作表语；
e.g. It is fun working for him. 为他工作很有意思。
也可用某些形容词作表语；
e.g. Do you think it is worthwhile quarrelling with him？ 你认为和他吵值得吗？
一些其他的谓语形式。
e.g. Does it matter wasting a little money? 稍微浪费一点钱行吗？
3) 主语从句
可以是that引导的；
e.g. It is strange that it hasn’t been noticed before. 真奇怪, 它以前没有引起注意。
It is a wonder that he is still alive. 他居然还活着, 真是个奇迹。
It is + noun +从句
It is a pity (a shame /an honor /a good thing/a fact /a surprise/... ) that ...
该句型中，that后的从句一般用虚拟语气（should + 动词原形），should可省去．表示出乎意料，常某某“竟然”。没有这种意义时，则不用虚拟语气。例如：
It is a pity that such a thing (should) happen in your class.
这种事竟然发生在你们班上，真是遗憾！
It is a pity that he is ill. 他生病了，真遗憾！
It happened that the harvest was bad that year. 碰巧, 那年的收成不好。
It is said that there has an earthquake in Japan. 据说日本发生了地震。
It is said (reported/ learned/believed
/thought/known/told/hoped.....) that ...
该句型中的it 仍是形式主语，真正主语是that 引导的主语从句；该结构常某某“据说（据报道，据悉．．．）”。
It is said that he has come to Beijing.
It is reported that another earth satellite has been put into orbit.
也可能是wh-词引导的
e.g. It is still a question how many people are to come. 多少个人会来, 还是个问题。
It is no business of yours where I spend my summer. 我在哪儿过夏天, 这不关你的事。
It remains to be seen whether it will do us harm or good. 对我们有好处还是有害处, 还要等着瞧。
It was clear enough what he meant. 他的意思很清楚。
It is said (reported/ learned/believed
/thought/known/told/hoped.....) that ...
该句型中的it 仍是形式主语，真正主语是that 引导的主语从句；该结构常某某“据说（据报道，据悉．．．）”。
It is said that he has come to Beijing.
It is reported that another earth satellite has been put into orbit.
e.g. I think it no use arguing with him. 我认为和他争吵没有用。
2. 作形式宾语。
当复合宾语中的宾语是不定式、动名词宾语从句时，往往把宾语放在它的补足语后面，而用it 作形式宾语，放在宾语补足语之前。
该句型中的it 作形式宾语，常用的动词有think, believe, make, find, consider, feel等。
I found it very interesting to study English. 我发现学英语非常有趣。
He made it clear that he was not interested in this subject. 他非常清楚地表示他对那门学科不感兴趣。
3. 用于强调结构
要强调句子的某一部分, 通常是主语、状语、宾语.
这种句子的结构是：
“It is/was+被强调部分+that/who+句子的其他部分”。如果强调的是人,可以用who, whom代替that。
It is/was? + 被强调部分 + that/who ...
I met Tom in the park yesterday.
1) It was I who met Tom in the park yesterday.
2) It was Tom who I met in the park yesterday.
3) It was in the park that I met Tom yesterday.
4) It was yesterday that I met Tom in the park.
It was five o’clock _________I got home.
It was at five o’clock_______ I got home.
when
that
强调句用以强调主语，宾语，介词宾语以及状语。（强调人时用that和who ／whom皆可）
It was she who ／that had been wrong．
是她错了。 ( )
It was the girl whom ／that I met just now．
我刚才遇见的就是这个女孩。 ( )
It was Tom to whom the teacher had talked．
老师与其谈话的那个人是汤姆。 （ ）
It was on Monday night that all this happened．
所有这一切就是在星期一的晚上发生的。（ ）
主语
宾语
介词宾语
状语
e.g. The frog is not a warm-blood animal. It’s a cold-blooded one.
4. 用作人称代词
代替前文提到的事物。
5. 作为非人称代词
起指示代词的作用, 指一个人或事物。
e.g. — Who is knocking at the door？ —It’s me.
2) 泛指天气。
e.g. It’s a warm sunny afternoon.
3) 泛指时间
e.g. It was nearly midnight when she came back.
4) 泛指环境
e.g. It is noisy here.
5) 泛指距离
e.g. It is half an hour’s walk to the city center.
6. 用于某些习某某
make it 及时赶到;成功;办成
e.g. You can make it if you hurry. 如果你赶快还可以及时赶到。
You needn’t worry; he will make it.你不必担心, 他会办到的。
catch it 被责骂; 受处罚
e.g. If I come home late, I’ll catch it from my mother. 如果我回家晚了, 我妈妈会骂我。
You’ll catch it because of your carelessness. 你会因为你的不小心受处罚的。
7. It的一些习惯用法
How is it with your study? 学习好吗？
That’s it. 这就对了。
It went hard with him. 他身遇不幸。
It is all over with me. 我完蛋了。
We must fight it out. 我们必须坚持到底。
I can’t help it. 我没有办法。
I. 单项选择
1. He didn’t make ____ clear when and where the meeting would be held.
(天津)
2. ____ is our belief that improvements in health care will lead to a stronger, more prosperous economy. (浙江)
高考实例
it
It
3. The doctor advised Vera strongly that she should take a holiday, but ______ didn’t help. (全国卷III)
4. I’d appreciate ______ if you would like to teach me how to use the computer. (山东)
it
it
用it改写下列句子
I’m still fit enough to cycle 20 kilometers in an afternoon. That is amazing.
2. My father has quit smoking. That is wonderful.
3. You could suffer from bad health if you keep
smoking. ( It is likely).
4. China produces one third of the world’s cigarettes. It is reported.
It is amazing that I am still fit enough to cycle 20 kilometers in an afternoon.
It is wonderful that my father has quit smoking.
It is likely that you could suffer from bad health
if you keep smoking.
It is reported that China produces one third of
the world’s cigarettes.
Revise and master the use of it.
Homework[全文已结束，注意以上仅为全文的文字预览，不包含图片和表格以及排版]
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