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1、2020年精编人教版英语资料Unit 3 A Healthy LifePart 1 Teaching Design第一部分 教学设计Period 2 A sample lesson plan for Learning about Language(The use of “it”)IntroductionIn this period students will be warming up by fast reading, summing up the use of it and doing vocabulary and grammar exercises. The class will be e
2、nded by students taking a quiz.Objectives To help students learn about the use of it To help students discover and learn to use some useful words and expressions To help students discover and learn to use some useful structuresProcedures1 Warming up by fast readingNice too see you on this bright coo
3、l morning. To warm up lets do a fast reading of a piece of latest news about smoking in China. Read for the key idea and supporting details.Chinese smokers burn 3 more cigarettes than world average中国烟民吸烟数比世界平均数多三支Source: Xinhua Newswire, 2005-05-09A recent survey carried out by China Horizon Researc
4、h shows Chinese smokers burn 15.8 cigarettes per day, which is three more than the world average 13. The survey also tells us the number of male smokers is much larger.Average money paid for each pack of cigarettes is 4.6 yuan. Zhejiang smokers are the most lavish with their habit. They averagely pa
5、y nine yuan for each pack, while Hunan smokers pay an average of three yuan per pack.Most smokers educational level is low. Eighty percent of them have only received a high school education or lower.2. it句型大归纳1. It is + 被强调部分 + that . 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，t
6、hat可以由who换用。把这种句型结构划掉后，留下的应该是一个完整的句子，这是判断该句是强调句型还是其它从句的方法。 It was about 600 years ago that the first clock with a face and an hour hand was made. It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. 2. It is not until + 被强调部分 + that . 直到才该句型也是强调句型。主要用于强
7、调时间状语，可以说是 not . until . 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star.= Not until she took off her dark glasses did I realize she was a famous film star.= I didnt realize she was a famous film star until she took off her dark glasses. 3. It is clea
8、r (obvious, true, possible, certain.) that . 是清楚（显然，确切，肯定）的该句型中it 是形式主语，真正的主语是that 引导的主语从句，是主语从句最常见的一种结构。 It is very clear that hes round and tall like a tree. = That hes round and tall like a tree is very clear. 4. It is important ( necessary, right, strange, natural.) that .该句型和3同属一个句型。that 后的从句中需
9、用虚拟语气should + 动词原形（should 可省去）。It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned.) that . 据说（据报道，据悉）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。It is said that he has come to Beijing. It is reported that another earth sa
10、tellite has been put into orbit.6. It is suggested ( ordered . ) that . 据建议；有命令该句型同属上。主句中的过去分词表示请求，建议，命令等意，that后的从句要用虚拟语气should + 动词原形（should 可省去）。It is suggested that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours. 7. It is a pity ( a shame . ) that .
11、 竟然该句型中，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。没有这种意义时，则不用虚拟语气。 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！ 8. It is time ( about time ,high time ) that . 是（正是）的时侯了该句型中that 后的从句应该用虚拟语气，值得注意的是 常用过去时态表示虚拟 有时也用should +
12、 动词原形，should 不能省。It is time that children should go to bed. = It is time that children went to bed. 9. It is the first ( second . ) time that . 是第一（二）次该句型要和上一个句型区别开来。该句型中的 that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中 that 可以省去；it有时用 this 替换。 It is the
13、first time I have been here. = This is the first time I have been here. 10. It is . since .该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题。主句中是时间作表语，其时态是现在时或完成时，since 引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。 It is ( has been ) 5 years since his father died. 11. It is . when . 当的时候，是该句型中的 when 引导的是一个时间状语从句
14、，主句中的 it 指时间，表语由具体的时间充当。It was 5 oclock when he came here. 12. It be . before . 才；就该句型主句中的 it 指时间, 主句中的时态常是将来一般时或过去时两种时态主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。It was quite a long time before he realized his mistake. It will be not long before he finishes his job. 13. It happens (seems
15、, looks, appears ) that. 碰巧；看来该句型中it是形式主语，that 引导的是主语从句，主句中的happen , seem等词是不及物动词 It happened ( so happened ) that he met his teacher in the street. It seems that he will be back in a few days. 14. It takes sb. . to do sth. 做要花费某人该句型中的不定式是真正的主语，it是形式主语，句型中的直接宾语是时间。 It took thousands of people many years to build the Great Wall. 15. It is no good (use ) doing sth.该句型中的真正主语是动名词短语，主句中的表语可以是no good , ( not any good ) , no use , ( not any use )。 It is no good learning English without speaking Englis
