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1、Unit 4 Global warming 教学设计第3课时Period 3Grammarthe Use of It”教学内容分析This teaching period mainly deals with the grammar： the use of it”. Tt has many usages in the English language. It can be used as a pronoun and the form of subject and object, and be used to express emphasis. From Unit 3 we know that i
2、t can be used as a pronoun and the form of subject and object. In this unit we will learn that it” can be used to express emphasis. This kind of sentence is called emphasized sentences. Its main form is It is/was.that/who.9 which is a very useful sentence pattern.三维目标设计Knowledge and skills1. To get
3、the students to know the structure of the emphasized sentences.2. To let the students learn the usages of the emphasized sentences.3 To enable the students to use the emphasized sentences correctly and properly.Process and methods1. To ask the students to read the reading passage again, pick out the
4、 emphasized sentences from the reading passage and translate them into Chinese.2. To ask the students to discover the structure and usages of the emphasized sentences by comparing a lot of example sentences.3. To ask the students to do the exercises in Discovering useful structures on Page 29 to mas
5、ter the emphasized sentences.4. To ask the students to summarize the usages of the emphasized sentences.5. To ask the students to do the exercises in Using Structures on Page 64 and some other additional exercises for consolidation.Emotion， attitude and value1. To get the students to become interest
6、ed in grammar learning.2. To develop the students* ability of comparing and summarizing.教学重、难点1. To get the students to master the structure and usages of the emphasized sentences.2. To enable the students to learn how to use the emphasized sentences.教学过程Step 1 Revision1. Check the homework exercise
7、s.2. Dictate some new words and expressions.Step 2 Warming upAsk the students to compare the two sentences below. The second sentence is from the reading passage. Translate them into Chinese and then discuss any difference in meaning and form. Ask the students to explain why it” is used in the secon
8、d sentence.Human activity has caused this global warming.It js human activity that has caused this global warming.Tell the students there are two more sentences in the text in which it is used fbr emphasis. Find them and then write them down.Suggested answers：1. It was a scientist called Charles Kee
9、ling， who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.2. .it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.Step 3 Grammar learningAsk the students to study the following sentences and try to summar
10、ize the structure of the emphasized sentences.Tom found my pen in the classroom yesterday.It was Tom who/that found my pen in the classroom yesterday.It was my pen that Tom found in the classroom yesterday.It was in the classroom that Tom found my pen yesterday.It was yesterday that Tom found my pen
11、 in the classroom.Step 4 Summing upTry to help the students draw the following conclusions.1. The main structure of the emphasized sentences is “It is/was.that/who.?2. The emphasized sentences can be used to emphasize the subject, object and adverbial(including adverbial of time and adverbial of pla
12、ce).3. When we want to emphasize the subject, object and adverbiah we only need to put these parts between it is/was” and that/who”，the rest part shouldnt be changed.4. When the emphasized part is a person we can use both the structure “It is/was.that. and the structure “It is/was.who., When the emp
13、hasized part is not a person we can only use the structure It is/was.that./Step 5 Grammar practiceAsk students to do the following exercises:1. Change the following sentences into emphasized sentences.(To emphasize the underlined parts.)(1) Peter lent us the money.(2) They want money.(3) A11 this ha
14、ppened on Monday.(4) 1 didnt hear from her until _last _summer.(5) Why does everyone think I am narrowminded?Suggested answers：(1) It was Peter who lent us the money.(2) It is money that they want.(3) It was on Monday that all this happened.(4) It was not until last summer that I heard from her.(5)
15、Why is it that everyone thinks I am narrow minded?The last two may be a little difficult for the students. Help them to get the correct answer.2. Do Exercise 2 in Discovering useful structures on Page 29.3. Do the exercises in Using Structures on Page 64.First ask students to do the exercises indivi
16、dually, and then let them discuss and check their answers with their partners, and finally give them correct answers and deal with any problems they might meet.Step 6 Getting more about the grammarShow the following sentences to the students and ask them to find what the similarity of these sentence
17、s is.lit is what you do rather than what you say that matters.2It was after he got what he had desired that he realized it was not so important.3It was pot until she got home that Jennifer realized she had lost her keys.Suggested answers：In these three sentences, the underlined parts are all clauses
18、一a subject clause and two adverbial clauses. That is to say, the emphasized sentence can not only be used to emphasize subject, object and adverbial, but also be used to emphasize subject clauses and adverbial clauses. Pay special attention to the third sentence, in which “not” and until” must be pu
19、t together.Then show the following two sentences to students and ask them to translate them into Chinese. Pay attention to the sentence pattern.Suggested answers： (1)H国宇航员是于1969年成功登陆月球的吗？(2)究竟是谁在路上放了这么多大石头？The general question sentences and the wh question sentences of the emphasized sentences shoul
20、d follow the following formulas：IsAVas it+被强调部分+that+其他部分Wh 一疑问词+ is/was it that+其他部分Step 7 Task based learningAsk students to choose a topic they like (eg. global warming, wildlife, protection, music, film, etc). Work in groups and try to tell the information they knowabout the topic using emphatic
21、 it.EXAMPLES：It was during the 20th century that the temperature of the earth went up about one degree Fahrenheit.It was Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere.Step 8 Closing down by a quizShow students the following on the screen or give out
22、 test papers to them and then ask them to finish these exercises in 10 minutes.1. Was it in this placethey once built a tall building?A. thatB. in whichC. beforeD. which2. It ishe often breaks the school rulesmakes his head teacherunsatisfied with him.A. what； thatB. that； whatC. that； thatD. becaus
23、e； that3. It is because English is being widely used at presentA why we learn it hardB that we learn it hardC. which we must learnD. when we should learn4. 一Was it what he said or something that he didmade you cry sosadly, Sarah?No, not really.A. whichB thatC. whenD what5 the people have become mast
24、ers of their countryscience canreally serve the people.A. It is only then； thatB. It was that； whenC. It is only when； thatD It was when； then6. 一I think we have met the word before.一Yes. It is in the reading materialwereading yesterday.A. that； didB. that； wereC. when； wereD. when； did7. It was the
25、re, the police believe, she was able to activate the recordershe kept in her bag.A. untilB. whichC. thatD. when8. It was this sense of failuremade him determined to succeed in his newlife.A. whoB. whichC. thatD. why9. that so many people think that being perfect is the way to go?A. It is whyB. Why i
26、s itC. Why it isD. Is why it10. When asked to explainhe does to make his students so enthusiasticabout school, he pauses and thinks deeply.A what it is thatB. that what it isC. what is it thatD. that what is it11. Wasnt it Dr Wang who spoke to you just now?A I didnt know who wasB Yes， it wasC. No, h
27、e wasn*tD. Yes, he did12. It washe said at the meeting last nightmade me angry.A. what； thatB. that； thatC. what； whatD. that； what13 Wasthat I saw last night at the concert?A. it youB. not youC. youD. that yourself14. It was the nervousness in the interviewprobably lost him the job.B sinceA. whichC
28、. thatC. thatD what15. It wasI reached thereI began to know something about thematter.A. until； whenB. until； thatC. not until； thatD. not when； that16. It wasmy father workedI worked now.A. where； thatB. where； whenC. that； whereD. that； that17. What a silly mistake it isyouve make!A. itB. thatC. thisD. whichSuggested answers： 1 5ACBBC 610BCCBA 11 15BAACC 1617ABStep 9 Homework1. Finish off the Workbook exercises.2. Preview the new words and expressions left in Unit 5 and the passage on Page3().Mark any part they can*t understand well.Step 10 Reflection after teaching