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1、【学习目标】： 学习、掌握介词 it 的用法【自主学习】：1.思考，回忆关于 it 的用法。2.重读课文，在课文中找出几个强调句和含有 it 的句子，理解他们在句中的含义。【问题研究】it 的常见用法 I、it 作为代词 可用于代替上文中提到的那一个事物、一件事，不知情的人（不知身份、性 别和姓名的人） ，表示时间、天气、距离、计算结果等。请说明下列例句中的 it 分别表示什 么？ He failed in the match, and it worried him. Who is knocking at the door? Its me. It was very noisy (quiet)
2、at the very moment. What time is it? Its eight oclock. It often rains in summer here. It is a long way to the school. II、it 可用于代替不定式、动名词、从句等，充当形式主语和形式宾语，请说明下列例句中 it 的作用。This has made it necessary for agriculture and industry to develop very quickly.I think it no use arguing with him. I found it very
3、 interesting to study English. It is important that we should pay close attention to grain. It is no use crying over spilt milk. It is a pity that you didnt read the book. It is bad manners for the young to take up the seats for the old III、 it 可用于构成强调句。It is (was) + 被强调成分+ that/ who+原句剩余部分 请说明下列例句被
4、强调的部分使句子的什么成分。 It was I that (who) met Li Ming at the railway station yesterday. It was Li Ming that I met at the railway station yesterday. It was at the railway station that I met Li Ming yesterday. It was not until his wife came back that he went to bed. 思考：比较以下两组句子，分析其句子类型及句式特点 It was 8 oclock w
5、hen Tom came back. It was at 8 oclock that Tom came back. It is the house where Toms uncle lives. It is in the house that Toms uncle lives. IV、it 常用于一些固定结构中，作无人称代词用，充当主语等。 1. it is 一段时间 since .从动作结束时算起有时间了 2. it will(not) bebefore. 3. It is/was/will be the first/second/thirdtime that(完成时)【拓展实践】1. My
6、 bike is missing. I cant find _ anywhere. A. one B. ones C. it D. that 2. - Whos that? - _ Professor Li.A. Thats B. Its C. He s D. Thiss 3. _ was Jane that I saw in the library this morning. A. It B. He C. She D. That 4. - Have you ever seen a whale alive? - Yes, Ive seen _. A. that B. it C. such D.
7、 one 5. The color of my coat is different from _ of yours. A. this B. that C. it D. one 6. _ will do you good to do some exercise every morning. A. It B. There C. Those D. You 7. We think _ our duty to pay taxes to our government. A. that B. this C. its D. it 8. The climate of Shanghai is better tha
8、n _ of Nanjing. A. that B. it C. which D. what 9. _ four years since I joined the Army. A. There was B. There is C. It was D. It is 10. How long _ to finish the work? A. youll take B. youll take it C. will it take you D. will take you 11. It was through Xiao Li _ I got to know Xiao Wang. A. who B. w
9、hom C. how D. that 12. It was in the rice fields _ we had our league meeting. A. where B. that C. in which D. on which 13. It was on October 1st _ new China was founded. A. which B. when C. as D. that 14. Was it because he was ill _ he asked for leave? A. and B. that C. thats D. so 15. Mary speaks i
10、n a low voice; _ is difficult to know what she is saying. A. it B. that C. so D. she 16. It was _ I met Mr Green in Shanghai. A. many years that B. many years before C. many years ago that D. many years when 17. _ is not everybody _ can draw so well. A. It, all B. It, that C. There, who D. There, th
11、at 18. So _ that no fish can live in it. A. shallow is the lake B. the lake is shallow C. shallow the lake is D. is the lake shallow答案答案第五课时：【问题研究】答案：1.It is five months since I arrived in New York.2.It will be several years before we meet again. 3.It is the first time that I have been here练习：15 CBADB 610 ADADC 1115 DBDBA 1618 CBA版权所有：高考资源网()
