1、1it 的用法总结Unit 3 A healthy life Editor: Yang Wenhua Unit 3 A healthy life Learning Plan (Grammar) Objective: To learn the use of “it” properly it 的用法总结： 形式主语；形式宾语；人称代词；代替指示代词；非人称代词表示时间、日期、地点、天气、温度、距离、环境等；某些习语及习惯用法。 1. 做形式主语 it 可以用作先行词作为句子的主语,而把句子的真正主语移到后面去, 可以移到后面的主语是： 1) 不定式 句子的谓语可以是: be + 形容词 e.g.
2、It is important to know your limitations. 知道自己的局限性是很重要的。 be + 名词； e.g. It is a good idea to have a little notebook handy. 手边2有个小笔记本是个好主意 be + 介词短语； e.g. It is against the law to do that. 这样做是违法的。其他类型的谓语 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 fu
3、n, a new experience 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？ ? 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 hasnt been noticed before. 真奇怪,
4、 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 happened that the harvest was 3bad that year. 碰巧, 那年的收成不好。 It is said that an earthquake struck Japan. 据说日本发生了地震。 ? 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 whe
5、re 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. 此事对我们是好是坏尚待分晓。 It was clear enough what he meant. 他的意思很清楚。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。 e.g. I think it no use arguing with him. 我认为和他争吵没有用。 I found it very in
6、teresting 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这门学科不感兴趣。 3. 用作人称代词 代替前文提到的事物 1 4e.g. The frog is not a warm-blood animal. Its a cold-blooded one. 4. 作为非人称代词 1) 起指示代词的作用, 指一个人或事物 e.g. Who is knocking at the door? Its me. 2) 泛指天气 e.g. Its
7、 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 hours walk to the city center. 5. 用于某些习语 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 neednt worry; he will make it 你不必担心, 他会办到的。 ca
8、tch it (口语) 被责骂; 受处罚 e.g. If I come home late Ill catch it from my mother. 如果我回家晚了, 我妈妈会骂我。 Youll catch it because of your carelessness. 你会因为你的不小心受处罚的。 6. it 的一些习惯用法 ? How is it with your study? 学习好吗？ ? Thats it. 这5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
9、it out. 我们必须坚持到底。 ? I cant help it. 我没有办法。 Exercises: 1. The fact that she was foreign made _ difficult for her to get a job in that country. (2010 辽宁) A. so B. much C. that D. it 2. The doctor thought _ would be good for you to have a holiday. (2010 全国 II) A. this B. that C. one D. it 3. The employ
10、ment rate has continued to rise in big cities thanks to the efforts of the local governments to increase _. (2011 北京) A. them B. those C. it D. that 4. The two girls are so alike that strangers find _ 6difficult to tell one from the other. (2011 山东) A. it B. them C. her D. that 5. We feel _ our duty
11、 to make our country a better place. (2011 天津) A. it B. this C. that D. one 6. Sarah made _ to the airport just in time to catch her plane this morning. (2012 全国 II) A. herself B. this C. that D. it 7. No matter where he is, he makes _ a rule to go for a walk before breakfast. (2012 陕西) A. him B. th
12、is C. that D. it 8. New technologies have made _ possible to turn out new products faster and at a lower cost. (2012 四川) A. that B. this C. one D. it 9. Susan made_ clear to me that she wished to make a new life for herself.（2014 山东） A. that B. this C. it D. her 710. An average of just 18.75cm of rain fell last year, making _ the driest year since California became a state in 1850. （2014 浙江） A. each B. it C. this D. one 2 百度搜索“就爱阅读”,专业资料、生活学习,尽在就爱阅读网 ,您的在线图书馆!
