Unit 6 Earth First Starting Out & Understanding ideasppt课件--2022高中英语新外研版必修第二册(1).pptx

1、Unit 6 Earth FirstStarting OutActivity 1 1.Which of the facts in the video do you find most alarming?2.What does the video want to tell us?1.Which of the facts in the video do you find most alarming?deforestationspecies extinctionocean pollutionshortage of fresh waterplastic pollutionloss of glacier

2、s 2.What does the video want to tell us?_ square kilometers of forest disappear every year around _ trees are cut down each day just to make toilet paper each day,around _ to _ species of plants and animals become extinct-nearly _ times the natural rate of extinction over _ animals are killed by oce

3、an pollution each year _ people dont have clean drinking water a plastic bottle can take _ years to break down the ice caps are more than _ thinner than they were _ years ago130,00025,0001502001,0001 million1 billion45050%40Brainstorm:think of words and phrases related to the environmental problems.

4、Pollution:water pollution,air pollution,soil pollution,etcDeforestationGlobal warmingOverpopulationLoss of biodiversityClimate changeWaste disposalChemicals,Toxics and Heavy Metals.Activity 2 1.What environmental problem does each cartoon refer to?2.What are the causes of these problems?3.What do yo

5、u think is the most serious environmental problem we face today?What should be done to help solve it?1.What environmental problem does each cartoon refer to?Water pollution;deforestation;air pollution;global warming.Use following expressions to help you:ignore,cause/lead to/result in,peoples awarene

6、ss of environmental protection,fossil fuel(化石燃料)burning.2.Whats the causes?3.What do you think is the most serious environmental problem we face today?What should be done to help solve it?Use following expressions to help you:invest,recycle（v.回收利用）,carpooling（v.拼车）,classification of waste,green/clea

7、n energy.Understanding ideasTick the words that you would use to describe sharks.Add any more you can think of.(P62 1)dangerous powerful endangeredinteresting man-eating terrifyingcute intelligent huge My thoughtdangerous powerful endangeredinteresting man-eating terrifyingcute simple-minded hugefle

8、xible fierce ocean giant dangerous powerful endangeredinteresting man-eating terrifyingcute simple-minded hugeflexible fierce ocean giant?Predict:1.Which one may the author focus on,dangerous or endangered?2.What style is the article,narration,argumentation or exposition?Please skim the passage to c

9、heck your prediction.Underline the key words or sentences you think are important.P1.a woman.disappears forever;.a dangerous animal.P2.People.scared of sharks.;.wanted them killed.P3.the number fell quickly;Finning kills millions of sharks a year.P4.Finning.upon Peter Benchley.Only around six people

10、 are killled by sharks every year.P5.Fortunately.want to protect them.The key words and sentencesSHARKS:DANGEROUS OR ENDANGERED?So the author may focus on“ENDANGERED”.The style of writing:argumentation,exposition or both?Please focus on:what it is about,why the author writes it,how the author suppor

11、ts his ideas and achieves his purpose.Read to get the main idea or topic sentence of each paragraph.Observe the poster.dark backgroundbloody wordwide mouthsharp teethfierce eyestarget the womanWhat may happen next second?Para 1:main idea or topic sentence Jaws strengthened peoples long-held idea of

12、great white shark as a dangerous animal.The opening scene from Jaws is terrifying and it makes people believe that sharks are dangerous.The more successful Jaws is,the more people are frightened by sharks.supportPara 2:main idea or topic sentence People have always been scared of sharks,but Jaws mad

13、e things worse.Many people.Some people.Other people.nobody cared if sharks were killed.People just wanted them killed.supportWhy does the author mention Jaws in the passage?Jaws strengthened peoples long-held idea of great white shark as a dangerous animal.People have always been scared of sharks,bu

14、t Jaws made things worse.Whats wrong with these?Isnt shark a dangerous animal?Shouldnt people be sacred of sharks?Think&Share Para 3:main idea or topic sentence After 1975,the number of large sharks around America and the world fell quickly,not only due to fear of sharks,but also finning.Finning is

15、a type of fishing where sharks are caught and their fins cut off.The sharks are thrown back into the sea where they die slowly and painfully.Finning is a type of fishing(industry).Kills millions of sharks a yearprofit$Sharks are caught and their fins cut off in the industry.Para 4:main idea or topic

16、 sentence The first sentence:Finning would have an unexpected effect upon Peter Benchley.The last sentence:Only around six people are killed by sharks every year.What effect?How do you know it?What does the number mean?Para 4:What effect?He came to see people as a danger to sharks,rather than the ot

17、her way round.He fought to protect sharks.He admitted that his book was wrong about sharks behaviour.This caused a deep change in him.Para 4:How do you know it?What does the number mean?Experts have proved it.It means that sharks are not that dangerous.Para 4:Why does the author mention Peter Benchl

18、ey and the experts here?The author takes Peter Benchley as an example to show that peoples attitudes towards sharks are changing.Experts findings have proved that people misunderstood sharks and sharks are not that dangerous.Para 4:Peoples attitudes towards sharks are changing.Sharks are not that da

19、ngerous.Para 5:More people want to protect sharks from extinction.Sharks:Dangerous or Endangered?Para 1+Para 2dangerousPara 3+Para 4endangeredPara 5More people want to protectsharks from extinction.Summarize what we have known about the passage:1.What does the author mainly talk about?2.Why does the

20、 author write the passage?3.How does the author support his ideas and achieve his purpose of writing?1.What does the author mainly talk about?The author tells us that due to fear of sharks and finning,people kill millions of sharks a year,so sharks are endangered.In fact,sharks are not that dangerou

21、s as people thought.Today,more people want to protect them from extinction.2.Choose the authors purpose in writing it.(P64 3)1)To criticise Peter Benchleys misleading description of sharks in his book and advocate the protection of sharks.2)To explain peoples misunderstanding of sharks and raise awa

22、reness of shark protection.3)To inform people about sharks and recommend the film and the book to them.3.How does the author support his ideas and achieve his purpose of writing?To explain peoples misunderstanding of sharks and raise awareness of shark protection.Predict:2.What style is the article/

23、narration,argumentation or exposition?To explain peoples misunderstanding of sharks and raise awareness of shark protection.not that dangerousdangerous,bad animals,eat peoplescared,killed sharksquoting experts findings fell quickly;millions are killed Expositionoffering statistics giving examplesCom

24、plete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.1 as dangerous animals2 sharks were bad animals that ate humans3 swimming in the sea4 fish for sharks5 fear of sharks and finning6 was wrong about sharks behaviour7 to protect8 sharks do not see people as food9 understanding sharks10 protect sharks from extinction1.How do you think Peter Benchley felt after diving in 1980?2.What other films or books do you know that feature wild animals?Do they“paint”a good or bad picture of these animals?Say how the animals are described.Homework