book6unit4reading(公開課)PPT課件

1、What do these pictures want to tell us? global warmingThe earth is becoming warmer第1頁/共13頁The Earth Is Becoming Warmer-But Does It Matter?The earth is becoming warmer.Does it matter?Para.2-5Para.6 (two different attitudes)第2頁/共13頁The purpose of the first paragraph is to _. A.introduce the writer B.

2、explain a changeC. introduce the topic D. raise a questionWhy does the writer end up the last paragraph with two questions?A. Because the writer wants to raise the question for the readers to think over.B. Because the writer wants to appeal to the readers to prevent global warming.C. Because the wri

3、ter wants to arouse the readers curiosity.D. Because the writer doesnt have any idea of global warming.第3頁/共13頁The structure of the textPart IPart II Part IIIPart IV(para.1)(para.2-5)(para.6)(para.7)introductionthe causetwo attitudesa question第4頁/共13頁P(yáng)art II (para. 2-5)WhatHow When Who How many第5頁/共

4、13頁P(yáng)art II (para.2-5)1. What causes the increase of the earths temperature?The burning of fossil fuels like coal, natural gas and oil causes the increase of the earths temperature.2. How is the earth warmed?The earth is warmed when small amounts of gases in the atmosphere, like carbon dioxide, metha

5、ne and water vapor, trap heat from the sun.第6頁/共13頁3.When does the problem begin?The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere.4.Who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957to 1997?Charles Keeling.5.How many d

6、egrees Celsius will the temperature increase go at most over the next 100 years according to Dr Foster? 5 degrees Celsius.第7頁/共13頁P(yáng)art III (para.6) two attitudesscientistopinionpossibleresultsDr FosterGeorge Hambley a _ a _ thing1.a rise of _ _ in the sea level2. Severe _, _, _, famines3. Spread of

7、_4. Disappearance of _1.Plants will _2.Crops will _3.It will _ _of animalscatastropheseveralmetresfloodsstormsdroughtsdiseasesspeciespositivegrow quickerproduce moreencouragea greater range第8頁/共13頁P(yáng)art I: Part II:Part III:Part IV: introduction the cause two different attitudes a question陳述現(xiàn)象/問題分析原因不

8、同態(tài)度 your opinion 個(gè)人觀點(diǎn)第9頁/共13頁陳述現(xiàn)象/問題There is no doubt that 分析原因is due to 不同觀點(diǎn)However, the attitudes of sb. towards sth are completely different.On the one hand, sb think that On the other hand, there are those who are opposed to this view and believe that It is true / a fact that The reason why is t

9、hat Opinions on the matter vary from person to person.個(gè)人觀點(diǎn)：In my opinion, / From my point of view As far as I am concerned 第10頁/共13頁Topic 1:Should students take mobile phones to school?Topic 2:Whether students do part-time jobs is good or bad?Topic 3:Is raising pets a good thing or a bad thing?Topic 4:Should