九年級(jí)英語上冊(cè)Unit2SavingtheearthTopic2AlltheseproblemsareveryseriousSectionC課件（新版）仁愛版.pptx

1、Unit 2 Saving the EarthTopic 2 All these problems are very serious,Section C,Environmental problems on our planet,Global Warming,Forest plummeted森林銳減,Air pollution,Land Desertification土地荒漠化,water pollution,Ocean pollution海洋污染,The environment is becoming worse and worse,What can we do to protect our

2、environment ,Give a speech,We shouldWe shouldnt,Learn Aims（學(xué)習(xí)目標(biāo)）： Words and phrases：hole, form,rise take away, ozone layer 學(xué)會(huì)使用筆記來獲取文章的主要信息以及將信息整理歸類 學(xué)習(xí)并利用閱讀技能：預(yù)測(cè)、獲取大意、猜測(cè)詞義,carbon dioxide,k:bn daksad,oxygen 氧氣,k s dn,CO2二氧化碳,O2氧氣,Pre-reading,Some trees functions,Trees can breathe in_ and breathe out_

3、,carbon dioxide(CO2,oxygen(O2,吸入,呼出,Pre-reading,:,形成,blkt,毯子,skep/ 逃離、滲出,It has formed a blanket and the heat (熱氣） from the sun cant escape,The temperature is rising,rise /raz/ 上升,But Carbon dioxide has increased(增加) a lot,a special kind of oxygen called “ozone ” (O3) (被叫做,Pre-reading,O3,zn,ozone 臭氧

4、,ozone layer臭氧層,zn lei,hole / hl / 洞,a very big hole in the ozone layer（臭氧層,There is too much harmful radiation from the sun,re de n /放射物,read again,hl / 洞 /f:m / 形成 /raz/ 上升,hole,form,rise,blanket 毯子 carbon dioxide 二氧化碳 ozone 臭氧 radiation 放射物,fewer trees,factory pollution,traffic pollution,the ozon

5、e hole,more carbon dioxide,Can you match(匹配） them,Look at the following pictures and predict the main idea of the passage,predict,1,2,3,4,5,預(yù)測(cè),Skimming (1b-1 P40,1.Choose suitable titles for Paragraphs 2-6. Then write it down in front of each paragraph,A.Traffic pollution B. Factory pollution C. Few

6、er trees D.The ozone hole E. More carbon dioxide,Skimming,Choose suitable titles for Paragraphs 2-6. Then write it down in front of each paragraph,_ All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts,

7、 so many kinds of animals and plants are disappearing,C. Fewer Trees,Paragraph 2,take away 拿走、帶走,_ In big cities, cars and buses have polluted the air. Now many people in cities have health problems,Skimming : the suitable title (正確標(biāo)題,Paragraph3,A. Traffic Pollution,Paragraph 4,B. Factory Pollution,

8、Skimming : the suitable title (正確標(biāo)題,Skimming : the suitable title (正確標(biāo)題,Paragraph 5,D.The Ozone hole,Skimming : the suitable title (正確標(biāo)題,Paragraph 6,E.More Carbon Dioxide,Scanning (1b 2-5 P40,1b Read 1a and complete the following tasks(1b 2-5),2.What does our planet mean here? A. The sun. B. Mars. C

9、. The moon. D. The earth,原文：But during this period, we have changed our planet a lot in many ways. Some things we have done are good for our earth while others are bad,Scanning,1b Read 1a and complete the following tasks,3.In the passage, blanket refers to _. A. carbon dioxide around the earth B. th

10、e ozone layer in the sky C. the forests around the world D. pollution all over the world,refer to 涉及、提到,4.The word it in Paragraph5 refers to _. A. CO2 B. O3 C. O2 D. H2O,1b Read 1a and complete the following tasks,Scanning,原文：There is a kind of oxygen called “ozone”. It is important .But now air po

11、llution is destroying it and making a very big hole in the ozone layer,5. What is the best title for this passage ? Environment Problems B. Pollution on the Earth C. Hope for the Future D. The Greenhouse Effect,1b Read 1a and complete the following tasks,Scanning,Write down only the key words when t

12、aking notes,1C:Read again and complete the notes according to 1a,careful reading,Task 1,health problems,pollute land and water, be dead,harmful radiation reaches the earth, cause cancer,factory pollution,the ozone hole,more CO2,the level of oceans 海平面,cause sth / sb to do sth,greenhouse effect(溫室效應(yīng)）

13、, level of oceans rising, climate change,fewer trees,forests become deserts, animals and plants disappear,traffic pollution,Careful reading,Task 2: Useful expressions,take away as a result be dead make a big hole pass through the hole cause sb sth to do sth refer to,結(jié)果,拿走、帶走,打了個(gè)洞,死氣沉沉,導(dǎo)致.做,穿過洞,提及、涉及

14、,3. As a result, many rivers and lakes are dead. 4.The harmful radiation passes through the hole . 5. This is called “the greenhouse effect”. 6. It causes the level of the oceans to rise and the climate of the earth to change,2. The earth is taken away.(翻譯、舉例,Tasks,翻譯舉例,翻譯、舉例,翻譯,翻譯、舉例,1. Some things

15、 we have done are very good for the earth while other are bad.(翻譯,The earth is taken away. take away: Eg:難道你要拿走他們的鉛筆嗎？ Are you goingt to their pencils,泥土被帶走,take away,拿走、帶走,As a result, many rivers and lakes are dead,結(jié)果，許多河流和湖泊都死了,沒有活的生物,1. As a result：因此，結(jié)果,Eg: 因此，他們會(huì)非常具有說服力。 , they can be very per

16、suasive,As a result,2. be dead,死氣沉沉,有害輻射穿過這個(gè)洞,The harmful radiation passes through the hole,pass through the hole,穿過洞,pass through,穿過,空氣可以通過潮濕的布料。 Air will the wet cloth,pass through,It causes the level of the oceans to rise and the climate of the earth to change,它導(dǎo)致了海平面的上升以及地球氣溫的變化,1. the level of

17、the oceans 海平面,2.cause:造成”、“使(發(fā)生,Smoking may cause lung cancer,吸煙可導(dǎo)致肺癌,The bad news caused her to be sad,這個(gè)壞消息使她傷心,causeto do,Cause sth.,1. _, many rivers and lakes _. 2.The harmful radiation_ the hole . 3.It _the level of oceans _,4. The earth _ (泥土被帶走,Practice: Fill in the blanks,As a result,are dead,passes through,causes,to rise,is taken away,We learn: 1. Some words: hole, form, rise 2. Some phrases: take away, refer to 3. Some sentences: All these problems are very serious, so we mus