1 5 Unit 11 Let’s Protect the Environment课件(北京课改版九年级).ppt(课件中不含音视频素材)

1、Unit 11 Lets Protect the EnvironmentReading and WritingWhy do we protect the environment?Because we have only one earth.What kind of pollution do you know?air pollutionwater pollutionWhat kind of pollution do you know?noise pollutionWhat kind of pollution do you know?water shortageWhat kind of envir

2、onment problems do you know?loss of forestsWhat kind of environment problems do you know?_is another serious environmental problem.Global warmingWhat kind of environment problems do you know?Whats the reason of global warming?_from the factories have _the water.The wastepolluted_ from the factories

3、have_ the air.Air _by the gases from factories.The gasespoisoned/pollutedis pollutedCars that people drive _ the air.Air _by the gases from cars.pour gases intois polluted_are often caused by _ people.not carefulForest firescarelessBecause too much carbon dioxide are given out.So a large amount of h

4、eat couldnt escape.二氧化碳平均每月变化二氧化碳平均每月变化Temperature of the earth increased.carbon dioxideWhats the effect of global warming?Whats this?Its an ice mountain.Whats happening to it?It is melting.What will happen then?Sea level will rise.It will raise sea level.sth riseraise sthWhat will happen?There will

5、 be a storm.What may happen after the storm?It will cause the flood.What can we do to save our environment?We should plant more trees instead of cutting down the trees.wind powersolar energyWe need to find new power.We can start environmental protecting groups to tell people the importance of protec

6、ting the earth.What other things can we do?We mustnt pollute the water.We must protect the water.We must save the water.We mustnt make any noise.We must throw waste things into dustbin.We mustnt spit everywhere.We mustnt throw waste paper about in public places.Lets try our best to protect the envir

7、onment.Read the text quickly and find the answer.1.How many parts are covered in the text?2.What are these parts about?Four parts.They are about the most serious problem,the reasons,consequences and measures we can take.Read and answer the following questions.1.How are we destroying the land on whic

8、h we are living?We throw garbage into streams that supply drink water,careless people cause forest fires,and beaches and city streets are littered with rubbish.Nowadays less heat can escape because of the increasing levels of carbon dioxide.The wastes from the factories have polluted the water,and t

9、he gases from the factories have poisoned the air.All of this pollution has caused the increasing level of carbon dioxide.2.What has caused the increasing levels of carbon dioxide?3.What has caused the increase of the earths surface temperature?4.What are the side effects of global warming?5.What ar

10、e the three solutions suggested in the text?A warmer global climate melts the ice caps and raises sea levels.What is more,it disturbs the weather and cause floods and storms.Firstly,we can plant more trees.Secondly,we have to find new power.Thirdly,we can start environmental groups to tell people th

11、e importance of protecting the earth.supply v.供应供应常用于常用于supply sth.to sb./supply sb.with sth.的结构中的结构中,意为意为“向某人提供某物；供应某人某向某人提供某物；供应某人某物物”。The company supplies everyday water to us./The company supplies us with everyday water.这家公司给我们提供日常用水。这家公司给我们提供日常用水。Language pointssupply还可以作名词使用还可以作名词使用,意为意为“供给；供应

12、供给；供应”时时是不可数名词；是不可数名词；其意为其意为“供应品；供给之物供应品；供给之物”时时,是可数名词是可数名词,而而且常用作复数。且常用作复数。This is a supply truck for the earthquake-hit area.这是为地震灾区运送补给品的货车。这是为地震灾区运送补给品的货车。Have you got enough supplies of food and water?你们得到足够的食物和水的供应了吗？你们得到足够的食物和水的供应了吗？disturb v.打乱；搅乱；干扰打乱；搅乱；干扰,打扰打扰Dont disturb the test papers

13、in the office.不要弄乱了办公室的试卷。不要弄乱了办公室的试卷。No sound disturbed the silence of the evening.入夜时分入夜时分,万籁俱寂。万籁俱寂。disturbed adj.意为意为“困扰的困扰的”；disturbance n.意为意为“搅乱；打扰搅乱；打扰”等。等。He is disturbed now.现在他感到困扰。现在他感到困扰。Tom is often a disturbance to other students.汤姆经常干扰其他学生。汤姆经常干扰其他学生。as.as possible是一个固定搭配是一个固定搭配,意为意为

14、“尽可能尽可能”,相当于相当于as.as one can。在这个结构中须用形容词或副词原形。在这个结构中须用形容词或副词原形。as deep/wide/high/long as possible尽可能深尽可能深/宽宽/高高/长；长；We should eat sugar as little as possible/as little as I can,because it easily makes us fatter.我们应该尽可能少吃糖我们应该尽可能少吃糖,因为它很容易使我们发因为它很容易使我们发胖。胖。The more.,the more.这是一个比较级句型这是一个比较级句型,意意为为“越

15、越,越越”。句型中的句型中的more可理解为任何形容词或副词的比较可理解为任何形容词或副词的比较级。级。The more English books you read,the more words you can remember.你看的英语书越多你看的英语书越多,记的单词也就越多。记的单词也就越多。The lighter the color of clothes is,the cooler we feel in summer.夏天夏天,衣服颜色越浅衣服颜色越浅,我们就感觉越凉爽。我们就感觉越凉爽。more and more+可数名词可数名词 复数或不可数名词复数或不可数名词,意为意为“越来越

16、多的越来越多的”。当它作主语时当它作主语时,谓语动词的单复数由其后的名词决谓语动词的单复数由其后的名词决定定,若是可数名词复数若是可数名词复数,谓语动词则用复数；谓语动词则用复数；若是不可数名词若是不可数名词,谓语动词则用单数。谓语动词则用单数。More and more people like to ride a bike to work.越来越多的人喜欢骑自行车去上班。越来越多的人喜欢骑自行车去上班。More and more rubbish is littered here.这里的垃圾越来越多。这里的垃圾越来越多。根据中文意思完成句子根据中文意思完成句子,每空一词。每空一词。1.你看的书

17、越多你看的书越多,见识就越广。见识就越广。_ _ books you read,_ _ you will know about the world.2.你能否告诉我你是哪里人？你能否告诉我你是哪里人？Could you tell me _ _ _ _?The more the more where you come from3.那个小孩说地球绕着太阳转。那个小孩说地球绕着太阳转。The child said that the earth _ _ the sun.4.我们应尽可能多种树保护环境。我们应尽可能多种树保护环境。We should plant _ _ trees _ _ to protect our environment.5.警察已经弄清了这场大火的原因。警察已经弄清了这场大火的原因。The police have already found out _ _ _ the fire.moves aroundas many as possiblethe causeof