Unit 3 Reading and Thinking ppt课件-(2022新)人教版高中英语选择性必修第三册 (2).pptx

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1、Unit 3 Environmental ProtectionReading and ThinkingEnhance the awareness of protecting environment1Learn some new words and phrases23Master the structure and main idea of the passageLearning AimsFast-reading Match the main idea with each part Part 1 (para.1-2 )Part 2 (para. 3)Part 3 (para. 4)Part 4

2、(para. 5)D. The evidences of dramatic climate changethat had an impact on Earth ecologyB. The cause of the increase in the global average surface temperatureA. The impacts of the rise in temperatureC.The solutions to reducing greenhouse gas emissionsCliamte ChangeEvidences1. a warming ocean and atmo

3、sphere2. 3. CauseimpactsSolutions1. goverments:2. individuals:melting ice and rising sea levelsa dead polar bear extreme weather and natural disasters;damage、deaths; ecnomic lossespolices, actions and measuresreduce “carbon footprint” and educate other people greenhouse effectLets summarizeExample:T

4、his passage is mainly about _, which includes 4 parts.The first part is the _ of climate change.For example, a starved bear.The second one is _, referring to _. The third one are _, including_. The last one are_ Climate ChangeEvidences Cause Impacts Solutions1. Whats the greenhouse effect? Please dr

5、aw a diagram to describe it?2. What can we do about global warming? Find out how the greenhouse effect works. 1.There is little doubt that Earth is getting warmer and warmer.There is no/little doubt 意为“毫无疑问”,后面接 that 引导的同位语从句There is some doubt 意为“有疑问;不确定”,后面接whether引导的同位语从句。【即学即练【即学即练 】1.1.毫无疑问毫无疑问

6、, 玩电子游戏玩电子游戏会影响儿童的睡眠。会影响儿童的睡眠。译译: : _ _There is no doubt that playing computer games can influence childrens sleep. 2. An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. the bear appeared to have starved and

7、died.appear to do sth 看上去好像做某事、似乎做某事;动词不定式有时态和语态的变化appear to be doing 看上去正在做某事appear to have done 看上去、似乎已经做了某事幸运的是,在医院的合作下,流感似乎已经得到了控制。Luckily ,with the cooperation of the hospital, the flu appeared _(control).to have been controlled ,the bear appeared to have starved and died. 【知识拓展】【知识拓展】(1)starve

8、 starve to death starve for = be starving for (2) starvation A number of the prisoners we saw are satrving.【即学即练】【即学即练】语法填空。语法填空。(1)The lonely student is _(starve) for friendship. (2)We shall wait the enemy out, and watch them starve to _(die). (3)Since the famine broke out, the number of people dyi

9、ng of _(starve) has been increasing. starvingdeathstarvation3. This alarming case showed how the increase in temperature had an impact on Earths ecology. have an impact / effect / influence on There is enough evidence 1._ Earth is getting warmer and warmer. According to an expert 2._has studied pola

10、r bears for many years, the bear found on Norways Arctic island of Svalbard appeared 3. _(starve) and died. This alarming case showed how the increase in temperature had an impact 4._Earths ecology. The natural greenhouse effect can make Earth 5._(sustain ) life.6._, the man-made greenhouse effect h

11、as now become a big problem, 7._ (cause) Earths surface temperature to rise quickly . Climate scientists have warned that if we dont take 8._ (appropriately ) actions, this warming trend will probably continue. It is our 9._( responsible) to seize every opportunity to educate everyone about 10. _ (globe) warming.thatwhoto have starvedonsustainHowevercausingappropriateresponsibilityglobalEnhance the awareness of protecting environment1Learn some new words and phrases23Grasp the structure and main idea of the passageLearning AimsHomework完成:黄皮P35-36 课文阅读理解

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