1、人教课标高二 选修 6Unit 4,Unit 4 Global warming,Learningaboutlanguage,Go over new words and phrases in the previous the sections. Then complete each sentence with one of those new words or phrases.,2,1. Charles Keeling collected _ on the carbon dioxide content in the atmosphere over a forty-year period. He
2、found that the amount of carbon dioxide _ increasing during that time.,data,kept on,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 global _.,quantities,run out,build up,catastrophe,4. Many
3、scientists believe that global warming has _ through the burning of fossil fuels.,come about,5. The _ of a rising sea level would be widespread flooding.,consequence,6. On the whole the warming of the earth is a _ that causes great concern.7. The _ shows temperature changes during the 20th century.8
4、. One hectare of forest can absorb 23 tons of carbon dioxide _ year.,phenomenon,graph,per,9. The washing machine uses too much energy, but _ we buy a more economical one, it would still use too much water.10. The car accident on the main road yesterday _ one drivers death.,even if,resulted in,由 it 引
5、导的强调句结构： It is (was) + 被强调部分 + that (who) + 句子其他部分 注意：此结构强调的成分仅限于主语，宾语和状语。,Explanation,It was in that city that we met for the first time,e.g. It was not until he told me that I knew the truth,原句：My father did the experiment in the lab yesterday evening,强调宾语：It was the experiment that my father did
6、in the lab yesterday evening,强调主语：It was my father who / that did the experiment in the lab yesterday evening,强调地点：It was in the lab that my father did the experiment yesterday evening,强调时间：It was yesterday evening that my father did the experiment in the lab,It was last night _ I saw the film Star
7、Wars A. who B. when C. that D. which,C,答案C 强调句的结构是：It + be + 强调部分 + that (who) +主谓句。强调句的连词只有两个，that和who。当强调的部分是人，且为句子的主语时，才用who，其余用that。,2) It is ten years _ Miss Green returned to Canada A. that B. when C. since D. as 答案C 考点是连词用法。本题易误选为A其实本句不是强调句。,C,若是去掉 It be that 还应是一个完整的句子。而本句去掉 It is that, 只剩下
8、ten years Miss Green returned to Canada 不成句。因此本句不是强调句。It is + 时间 + since.，其中 is = has been.,1. It was this village _ I was bought. A. where B. that C. on which D. which,2. It was in this village _ I was brought up. A. where B. that C. on which D. which,3. Was it under the tree _ you were away talkin
9、g to a friend? Sure. But when I got back there, the bike was gone. A. that B. where C. which D. while,根据句意及所给单词的首字母或 汉语提示，写出所缺单词的正确形式。1. On the w_, I thought the film Animals United was pretty good.2. The a_ age of the boys in this class is twelve years old.3. These creatures were believed to have c
10、ome from o_ space.,outer,whole,average,4. There is a growing _ (趋势) for people to work at home instead of in offices.5. There are reports of _ (分 布广的) flooding in northern France.6. The newspaper didnt appear any longer after being in _ (存在) for only three months.,existence,tendency,widespread,II. 根
11、据汉语提示，用强调句型补全 下列句子。 _ (是在校门口) that I met an old friend of mine.2. _ (是在晚上7点) that we reached the mountain village.3. It is our parents _ _ (我们经常向他们寻求帮助).,that / whom / who we often turn to for help,It was at the school gate,It was at 7 p.m.,4. It was our monitor _ _ (在考试中获得 第一名).5. _ (那是在去年吗) the bu
12、ilding was completed?6. _ (是在哪里) you met your English teacher?,Where was it that,who / that won first place in the exam,Was it last year that,7. _ (是怎么) Susan went to school yesterday?8. _ (是 在前天) that you lost the money, wasnt it?,It was the day before yesterday,How was it that,Make four sentences with “it” for emphasis.,Homework,
