Unit 2 Saving the Earth-Topic 1 Pollution has caused too many problems.-Section D-ppt课件-(含教案)-市级公开课-仁爱科普版九年级上册(编号：903f9).zip

1、Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems . Section D There are many kinds of pollution around us, air pollution light pollution litter water pollutionsoil pollutionnoise pollution ( ) 1. What is the passage mainly about? A. Air pollution. B. Light pollution. C. Litter.

2、D. All sorts of pollution. ( ) 2. _ destroy(s) the soil. A. Chemicals B. Weather C. Noise D. Industry ( ) 3. How do people feel after they work in strong light for a long time? A. Excited. B. Happy. C. Terrible. D. Sad. A D C New words coal create blood highbloodpressure planet 造成，创造 行星 高血压 血 煤 Poll

3、utionCauseEffect air pollution burning_, _ and _ _ eyes and _ problems soil pollution _ is everywhere, use too many _ _ environment and _ food noise pollution _ place for a long time make people _ and cause _ pressure light pollution _ light kinds of _, bad for _ gas oilcoal sore breathing litter ch

4、emicals dirty unhealthy work in a noisydeaf high blood strong illnesses eyes There are many _ of pollution around us. They are _ for our health in many ways. Air pollution causes _ eyes and _ problems. _ makes our environment dirty. Soil pollution _ the soil and _ unhealthy food. Noise pollution mak

5、es people _ and causes high blood pressure. Light pollution is bad for _ and causes some kinds of _. With less pollution, our planet will become _ and our health will be better. Lets be greener people. kinds/sorts bad sorebreathing Litter destroyscauses deaf eyes illnesses greener 1. They are bad fo

6、r our health in many ways. They _to our health in different ways. 2. People may lose their hearing if they work in a noisy place for a long time. If people work in noisy conditions for a long time they may have _. 3. Noise pollution can make people deaf. People may _ deaf _ noise pollution. hearing

7、loss do harm go because of / are harmful Read through Sections A-C and fill in the blanks with the correct words. Grammar I _ (go) there two years ago. There _ (be) lots of flowers and grass. What _ (happen) here? I have _ (be) like this since last week. The flowers and grass _ (go)! been were has h

8、appened have gone went Simple Past Present Perfect It _ (be) beautiful in the past. Kangkang _ (go) there two years ago. The flowers and grass _ (go). Everything _ (change). Mrs. Zhou _ (be) like this since last week. She _ (not see) a doctor yet. was went have gone has changed has been hasnt seen S

9、imple past 强调过去 Present perfect 强调现在They are caused by pollution. 一般过去时表示过去某个时间发生的事、存在的状态或经常发生的 动作。说话的侧重点只在于陈述一件过去的事情，不强调对“ 现在”产生的影响。 现在完成时表示动作发生在过去，对现在造成了影响或产生了结果 。不与确定的过去时间状语连用。 He visited Guilin in 1998.他1998年参观过桂林。(只说明去 桂林的时间) Jill has bought a new computer.吉尔买了一台新电脑。( 着重点是现在有了一台新电脑) 1.They(go)_

10、toAmericalastyear. 2.Imsorry.I(forget)_yourname. 3.Myfriend(finish)_collegelastyear. 4.Howlong_she_(be)ill? 5.Whereisyourfather?Wehaventseeneach otherforweeks. _. A.HehasbeentoAmerica B.HehasgonetoEngland C.HeisgoingtoAustralia D.Hewouldvisitmygrandparents went forgot finished hasbeen B Exercises Oh

11、, what a _! There are several chemical factories _ waste water into the stream. Whats _, the factory makes too much noise Noise is _ to humans health. People who work and live in noisy conditions often _ deaf. many teenagers in America can hear no _ than 65-year-old people do, does great _ to people

12、s hearing. Functions shame pouring worse go harmful better harm 根据汉语意思完成句子。 1. 如今，很多人患有高血压。 Nowadays, many people have _ _ _. 2. 动物可以在很多方面帮助人们。 Animals can help people _ _ _. 3. 迈克会打篮球，他跑步也很快。 Mike can play basketball. He runs fast _ _. 4. 随着工业的发展，污染越来越严重。 _ _ _ _ industry, pollution has become _ _

13、_ serious. high blood pressure in many ways as well With the development of more and more 单项选择 ( ) 1. Linda has many hobbies, _ listening to music, collecting coins, going cycling and so on. A. for example B. including C. about D. and ( ) 2. There is _ pollution in the world. We must stop it. A. muc

14、h too B. too much C. many D. too many ( ) 3. _ the increase in population, food has become a serious problem. A. And B. By C. To D. With ( )4._ the environment is important for human beings. A. Take care of B. Took care of C. Taking care of D. Take the care of B D C B Homework 1. Read 1a. 2. Make a

15、wall newspaper about pollution. 3. Finish Section D in your workbook. 4. Preview Section A in Topic 2. Thank you. 1 仁爱英语九年级上仁爱英语九年级上 Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems. Section D 教学设计教学设计 一、教学目标一、教学目标 1.学生能够掌握本课的重点词汇和短语，如 coal、create、blood、planet、high blood pressu

16、re 等。 总结一般过去时和现在完成时的区别；复习本话题的重点表达法。 2.学生能读懂与环境污染问题有关的文章，能根据所给关键词复述课文。 3.通过了解各种污染带来的危害，帮助学生树立环保意识，爱护环境，保护地球并引导学生了解环境污染对人类健康有巨大的危害，不 同种类的污染体现在不同的方面。 二、教学重难点二、教学重难点 1. 教学重点： Words and phrases: coal, create, blood, planet, in many ways, with the development of industry, high blood pressure Grammar: the

17、differences between the simple past and present perfect 2. 教学难点： 能根据关键词复述课文。 能够进行同义句转换，用不同的短语表达相同的意思。 2 三、三、教学过程教学过程 步骤步骤教师活动教师活动学生活动学生活动设计意图设计意图 1 Getting students ready for learning （3mins) Step 1: Let the Ss read the words they have learnt already in this topic. Step 2: Greetings between the teac

18、her and the students. Read the words together. (课前 三分钟) Ss: Good morning, teacher! T: Good morning, students! Sit down, please. 学生在学习新课之前朗读 复习本话题词汇，有助于 本节阅读课的开展。 2 Lead-in (3mins) Let the Ss list what they have learnt about pollution in this topic. T: Wonderful! Now list what you have learnt in this

19、 topic and say the names of the pollution T: Good！Now, today were going to learn Section D, please turn to page33. List what they have learnt about pollution in this topic. Ss: Air pollution, light pollution litter, water pollution, soil pollution, noise pollution Ss:(学生翻到33页) 学生复习污染的种类，为 之后阅读文章，获取进

20、一 步信息铺垫。 3 3 Pre-reading (10mins) Step 1: Let the Ss scan 1a and choose the best answer on PPT. T: Please read the questions first.(PPT) Check the answers Language points: all sorts of=all kinds of Step 2: Let the Ss scan 1a again and circle the new words, and match with its Chinese meanings. Read o

21、ut the questions before reading the passage. Ss: (Questions) 1. What is the passage mainly about? 2. _ destroy(s) the soil. 3. How do people feel after they work in strong light for a long time? Ss: coal 造成 create 行星 blood 高血压 high blood pressure 血 planet 煤 让学生在阅读文章前先朗 读、了解所给问题，有助 于学生更具针对性的寻找 答案，进而培

22、养学生们的 阅读策略。 阅读前解决生词，为正式 阅读扫清障碍。 4 4 While-reading (10mins) Step 1: Let the Ss read 1a and find the main idea of this passage. T: You are right. Pollution is harmful to peoples health. Now, please read 1a as quickly as you can and try to get the main idea of this passage. T: OK. What is the passage a

23、bout? Step 2: Let the Ss read the passage again and work in pairs to complete the table on Page 34. Then check the answers in pairs. T: Yes, please read the passage carefully and complete the table on Page 34. You can discuss the answers with your partner. T: Lets check the answers together. Read 1a

24、 quickly and find the main idea of this passage. Ss: The harm of different pollutions. Read the passage again and work in pairs to complete the table on Page 34. 阅读部分采取两个步骤， 一是泛读，二是精读。泛 读让学生了解文章大意， 精读可以让学生注意段落、 语句之间的逻辑关系，培 养学生写作思维能力。 5 Step 3: Let the Ss find out how many kinds of pollution there ar

25、e and what the causes and effects are.(教师板书) S1: gas, oil and coal S2: sore eyes and breathing problems S3: litter everywhere, use too many chemicals S4 Ss: Air pollution, ,soil pollution, noise pollution, light pollution 通过反复阅读，学生的脑 海已有污染的框架，包括 种类、原因、影响，有助 于师生共同完成思维导图 （板书部分） ，利于之后 学生复述课文。 5 Post-re

26、ading (12mins) Step 1: Let the Ss read the article sentence by sentence and find the key points they think. Write them down and encourage the Ss to explain them. T: Now read the article sentence by sentence, circle the key phrases you think and try to explain them in your own words. Read the article

27、, circle the key points and try to explain them. 做完阅读练习后，让学生 自己划出文章中重要的词 组、连词，并自己做出解 释。这样可以帮助他们更 好的理解所读和所学，并 且利于复述课文。 6 T: Volunteers? Step 2: Let the Ss retell the passage according to the mind map on the blackboard and the table on Page34. Step 3: Let the Ss complete the passage on PPT according t

28、o 1a. Step 4: Let the Ss finish 1b quickly. T: Very good. You learnt so well. Now please finish 1b by yourselves. T: OK, lets check your answers together. S1: “including” means “包括” S2: “with the increase in population” means “随着人口 的增长” S3: S1: Air pollution can cause sore eyes S2: Light pollution i

29、s bad for our eyes S3: Finish the passage on PPT. Finish 1b according to the given sentences. S1:are harmful 复述时可以选择用原文章 中的短语，也鼓励学生自 由发挥，进行知识的再巩 固。 该部分要求学生改写句子， 巩固短语学习。 7 T: Well done!S2:hearing loss S3:go, because of 6 Grammar& Functions (5mins) Step 1: Distinguish simple past from present perfect

30、tense, and complete this part. Step 2: Finish Functions and read them. Step 3: Let the Ss do some exercise. Ss summarize the differences between simple past and present perfect tense. Ss finish this part and read them Ss finish the exercise. 引导学生归纳总结一般过 去时与现在完成时的区别， 并完成 33 页表格。 复习本话题常用表达及重 点短语。 7 Su

31、mmarizing and assigning homework (2mins) HMK: 1.Let the Ss go over what they have learnt about this topic. 2. Summarize the key points on the exercise book. 3. Let the student A in each group make a wall newspaper about pollution. T: We have finished Topic1. Now sum up the key points in this topic o

32、n your exercise book. Try to make new sentences if you can. Go over this topic. Summarize the key points on the exercise book. Encourage student A in each group to make a wall newspaper about pollution. 作业布置时，可以有两种 或者三种层次，对组内 A 类生要有更高的要求，鼓 励他们仿写一篇关于污染 的文章，如果作业太简单， 他们会失去挑战的兴趣。 对组内的 C 类生，要降低 难度，只要能很好的

33、完成 基本任务就行。 8 . Blackboard design Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems. Section D pollutions Causes Effects air pollution soil pollution noise pollution light pollution sore eyes & breathing problems unhealthy food burning gas,oil&coal litter&chemicals kinds of illnesses, bad for eyes work in a noisy place for a long time working in strong light lose hearing, high blood pressure Lets be greener people!