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1、Unit 4,Global warming,Section Warming Up & Reading,一、课文大意填空,From the passage we know that the (1)_ of the earth,is on (2)_ At the same time, this passage also shows us,peoples (3)_ ideas about (4)_ warming, and analyses the reasons for global warming and the possible impact based on (5)_ and data.,t
2、emperature,rise,different,global,graphs,二、根据课文内容，选择最佳答案 1 Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977? _,ADr Janice Foster. CGeorge Hambley.,BCharles Keeling. DSophie Armstrong.,2Dr Janice Foster believes that global warming is caused by _.,Aburning fossil fuels Cw
3、ater vapor,Bgreen house Dnatural gas,B,A,3The author probably agrees that _. Aactually global warming is good for man,Bwe should do nothing about the global warming,Ccatastrophes will happen if the globe keeps on warming D a lot remains to be found out about the effects of global,warming,D,4Which is
4、 NOT the effect of global warming? _ AThe sea level will rise. B Severe storms, droughts, famines, the spread of di-seases, and destruction of species will happen. CCrops will produce less. DPlants will grow faster. 5What is the main idea of the passage? _,AGlobal warming. CEconomic crisis.,BAir pol
5、lution. DTsunamis.,C,A,三、阅读课文，然后完成下列表格,The different ideas between Dr Janice Foster & George,Hambley,go up,catastrophe,serious,positive,greater,So how has this come about and does it matter？这种温,度的增长是怎么产生的呢？会产生什么影响呢？ 1come about 发生；造成,典例 Do you know how the accident came about? 你知道车祸是怎么发生的吗？ 拓展 come
6、along 一起来；进展,come across (偶然)遇见 come up 发生；举行 come up with 提出,come out 出现；出版；(消息)传开；(观点)公开,运用 用 come 及其构成短语的适当形式填空,Im going to see a movie today. Do you want to _？,An earthquake _ in that country two,months ago.,Her wedding is _ soon.,It was getting dark and the moon was _. I _ a friend in KFC yeste
7、rday.,come along,came about,coming up,coming out,came across,There is no doubt that the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon. 毫无疑问，地球正在变暖(见表 1)，但全球变暖是人为的，而不 是随意的自然现象。 2There is no doubt th
8、at.,解析,There is no doubt that.表示“毫无疑问”，that,引导的从句为名词 doubt 的同位语从句，进一步解释“怀疑” 的具体内容。如： There is no doubt that shortsightedness is a serious problem among the youth of our country. 毫无疑问，近视在我国年轻人中是一个严重的问题。,运用 完成句子,_ (毫无疑问) youll be warmly welcomed.,There is no doubt that,All scientists subscribe to the
9、view that the increase in the earths temperature is due to the burning of fossil fuels like,coal, natural gas and oil to produce energy.所有的科学家都赞 成这个观点，人们为了生产能量而燃烧化石燃料(如煤、天然气 和石油等)，从而引起了地球温度的升高。,3subscribe vi.同意；捐赠；订阅 vt.签署(文件)；捐助,典例 He didnt subscribe to my proposal. 他不赞同我的建议。,He subscribed his name
10、 to the form.他在表上签了名。 拓展 subscribe to 同意；赞成；订购，订阅,运用 完成句子,I have never _ ( 同 意 ) the view that,schooldays are the happiest days of your life.,The lawyer invited his client to _ ( 签署),the affidavit (宣誓书),subscribed to,subscribe,The problem begins when we add huge quantities of,extra carbon dioxide in
11、to the atmosphere.当我们在大气层中增 加了大量额外的二氧化碳时，问题就来了。 4quantities of 大量的,解析 quantities of 表示“大量的”，既可用来修饰可数名 词复数，也可用来修饰不可数名词，其谓语动词要用复数。如： Quantities of paper products are produced in this factory.这家,工厂生产大量的纸制品。,Trees can give off quantities of water every day. 树木每天可以释放出大量的水分。,拓展 (1)a quantity of 大量的(后接谓语动词
12、用单数) in quantity 在数量上；大量地 in large quantities 大量地,(2)表示“大量的”的常用短语有： 只可修饰可数名词：,many, many a ( 谓语动词用单数 ), a great/good many, a,great/large number of/numbers of,只可修饰不可数名词：,much, a great/large amount of/amounts of, a good/great deal,of,既可修饰可数名词，又可修饰不可数名词：,a lot of/lots of, a quantity of/quantities of, p
13、lenty of,运用 用所给单词的适当形式填空,Quantities of food _ (be) put on the table. A large quantity of apples _ (be) sold out.,are/were,is/was,It means that more heat energy tends to be trapped in,the atmosphere causing the global temperature to go up.它意味 着更多的热能将被困在大气层中，从而引起全球气温上升。 5tend,解析 (1)vi.趋向；易于；照顾,Old peo
14、ple tend to get fat.老年人容易发胖。,(2)vt.照顾；护理,She is good at tending little children. 她擅长照看小孩。,拓展 tend to do sth.倾向做某事 tend to/towards sth.倾向于某事 tend (to) sb./sth.照顾某人/某物 运用 完成句子,We hire a girl to _ ( 照顾孩子们) for a,few hours each day.,The drug is effective but _ ( 易于) cause,headaches.,tend (to) the childr
15、en,tends to,6go up 上升；增长；升起,典例 Prices of fruit and vegetables have gone up. 水果和蔬菜的价格已经上涨了。 拓展 go by 经过；消失,go down 下降；下沉,go over 复习；仔细检查 go through 经历；遭受 go on 发生；继续,运用 用上面所提供的短语的适当形式填空,We hope the water level in Changjiang River will stop,_.,Youre supposed to _ the goods before,you sign.,going up,go over,They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dio-xide.,他们还赞同下述观点：正是由于越来越多的燃烧化石燃料导致 了二氧化碳的增加。 7result in 导致,典例 O
