1、高考资源网（） 您身边的高考专家2014-2015学年高中英语（昆明）同步教案：Unit 4 Global warming人教新课标选修6）语法GrammarTeaching materialNSEFC Book 6 Unit 4Teaching aimsEnable the students to master the usage of the form it is/was. that. Teaching important pointsHow to enable the students to know the structure and the usage of the form it
2、is/was. that.Teaching difficult pointsHow to help the students to master the usage of the form it is/was. that.Teaching aidstape recorder, slidesTeaching proceduresStep1 RevisionT: First lets check answers. (slide show)Discovering useful words and expressions. (P28)1. Charles Keeling collected _on t
3、he carbon dioxide content in the atmosphere over a forty-year period. He found that the amount of carbon dioxide _ increasing during that time.2. Although we are burning coal in huge _ every year, we wont _ of it for centuries.3. If the amount of greenhouse gases continues to _ we could be facing a
4、global _.4. Many scientists believe that global warming has _ through the burning of fossil fuels. They do not think that ignoring the issue is worth the _.5. _ describes weather conditions over a period of years in a particular place.6. The _ of a rising sea level would be widespread flooding.7. Th
5、e use of energy in Susannas country is low _ the use of energy in the USA.8. The warming of the earth is a _ that causes great concern.9. The _ shows temperature changes during the 20th century.10. One hectare of forest can absorb 23 tons of carbon dioxide _ year.Keys：1.data kept on 2. quantities; r
6、un out 3. build up; catastrophe4. come about; risk 5. Climate 6. consequence pared to 8.phenomenon9. graph 10. perAnswer keys for Ex.2 on Page 28:The first graph shows the global _ between _ and _The temperature _ and decreased over this period but on the whole it _ by around _ and its highest in 20
7、00. There was a steady _ in the temperature during the twenty years after 1980. We can see from the graph that the earth has become _ since early last century.The second graph shows the amount of _in the atmosphere from _ to _ .The carbon dioxide _ steadily over this forty-year period. It went up fr
8、om 315 to 370 parts _million.Keys：Temperature；1860；2000；increased；rose；1910；increase/rise；warmercarbon dioxide；1957；1997；increase/ went up；perStep2 Grammar强调句结构常考的强调句结构是it 引导的句子。It is (was) 被强调部分+ that (who) + 句子其他部分。此结构强调的成分仅限于主语，宾语和状语。It is from the sun that we get light and heat.It was not until
9、I had read your letter that I understood the true state of affairs.KarlboughtMarvaabicycleonherbirthday卡尔在玛瓦生日那天给她买了一辆自行车。 ItwasKarlthatwhoboughtMarvaabicycleonherbirthday（强调主语） ItwasMarvaforwhomKarlboughtabicycleonherbirthday（强调间接宾语） ItwasabicyclethatKarlboughtMarvaonherbirthday（强调直接宾语）注意区别强调句中的tha
10、twho分句与定语从句： Itwasthestudentthatwhoaskedthesillyquestion是一个学生问了这么一个愚蠢的问题。（分裂句） Hewasthestudentwhoaskedthesillyquestion他就是问了这么一个愚蠢问题的学生。（划线部分是定语从句）二、not . until . 的强调形式: It is not until + 被强调部分 + that . “直到才”， 主要用于强调时间状语的强调句型。 WedidnotbeginstudyingFrenchuntilweentereduniversity我们进了大学才开始学法语。要强调untilwe
11、entereduniversity，就成了： ItwasnotuntilweentereduniversitythatwebeganstudyingFrench_the18thcenturythatmanrealizedthatthewholeofthebrainwasinvolvedintheworkingsofthemind A. DuringB. InC. ItwasuntilD. ItwasnotuntilD对。直到十八世纪，人们才意识到：心理活动与整个大脑有关。三、强调句的疑问句句型1.强调句的一般疑问句句型:Is / Was +it +所强调的部分+that / who/ whom
12、 +其它?2.强调句的特殊疑问句句型:特殊疑问词 + is/wasit that / who/ whom+其它 ?Whyisitthatyouhatewinter？你究竟为什么不喜欢冬天？ Howwasitthatyoumissedsuchawonderfullecture？你怎么会错过这么精彩的报告？ Whenwasitthattheywentabroad？他们什么时候出国的？四、判断强调句的方法判断是否是强调句是，可把 It is / was that 去掉，剩余部分在不增减任何词的情况下还是一个完整的句子，那么这种句子是强调句。It was in the street that I me
13、t her father. In the street I met her father. It was because she was ill that they didnt ask her to do the job.Because she was ill, they didnt ask her to do the job.Step 3 Exercises一、根据划线部分把下列句子变成强调句。1. Peter lent us the money.2. They want money.3. All this happened on Monday.4. I didnt hear form he
14、r until last summer.5.Why does everyone think I am narrow-minded？ Keys：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.Why is it that everyone thinks I am narrow-minded？二、Multiple c
15、hoices1. It was in this village _ I was brought up. A. where B. that C. on which D. which2. Is it the factory_ this type of cars are produced?A. which B. where C. that D. /3. It was _ the old worker came that we _ the experiment.A. until; didnt begin B. not until; beganC. until began D. not until; d
16、idnt begin 4. It was in the lab _was taken charge of by Mr. Harris _they did the experiment.A. which，that B. that，which C. that， whom D. which，where5. It was _he did _frightened me.A. what，that B. that，that C. what，what D. that，what6. _ on Monday night that all this happened?A. Is it B.? It is C. Was it D. It wasKeys：BBBAACStep4 Homework1. Finish exercises of discovering useful structures (P29) and using structures on P64.2. Preview Using Language.- 3 - 版权所有高考资源网