九年级英语Unit 13 We are trying to save the earth教案.docx

1、九年级英语Unit 13 We are trying to save the earth教案Unit 13 Were trying to save the earth!教学目标：话题Topic：环境保护 (Protecting the environment)功能 Functions：能谈论环境污染和环境保护问题 (Talk about pollution and environmental protection)Were trying to save the earth.The river used to be so clean.The air is badly polluted.To cu

2、t down air pollution, we should take the bus or subway instead of driving.语法复习：Review of key structures能正确区分和使用以下语法结构：现在进行时、used to、被动语态、现在完成时、情态动词等We are trying to save the earth.The river used to be so clearn.It was considered the nicest river in town.We should help save the sharks.词汇和常用表达 Words &

3、 expressions1.能正确使用下列词汇 (Curriculum words)bottom, fisherman, coal, advantage, industry, law, gate, bottle, president, work, metal, ugly, wooden, plastic, cruel, harmful, scientific, litter, cost, afford, recycle2.能正确使用下列常用表达 (Useful expressions)be harmful to, at the top of, the food, chain, take par

4、t in, turn off, pay for, take action, throw away, put sth. to good use, pulldown, upside down, bring back3.能认读下列词汇 (Non-curriculum words)takeaway, bin, shark, fin, chain, ecosystem, reusable, transportation, napkin, inspiration, iron, creativity学习策略 Strategies1.借助文章标题和插图对阅读篇章内容进行合理的预测2.能在阅读中借助上下文语境和

5、构词特征猜测部分词汇的含义文化知识 Culture了解环境污染情况问题和如何保护环境课时划分：Period 1 Section A1 1a- 2dPeriod 2 Section A2 3a-3bPeriod 3 Grammar Focus - 4cPeriod 4 Section B1 1a-1ePeriod 5 Section B2 2a-2e Period 6 Section B3 3a-Self Check Section A 1 (1a-2d)Learning objectives:1. To learn and talk about air pollution, waste pol

6、lution and ways to solve the problems.2. To learn to use the sentence patterns. used to.but now should do sth.3. To master key words and phrases: litter, bottom, fisherman, coal, ugly, advantage, cost, wooden, plastic, make a difference, lead to, instead ofI. Warming upShow the pictures to make some

7、 comparison and tell students the earth is polluted now. For example: (1) The factories that burn coal pollute the air with a lot of black smoke.(2) Factories put waste into the river.(3) People should throw away litter in the bin. (4)There are more cars on the road.Learn some new words.II. Work on

8、1aHere are some words related to different kinds of pollution. Write them in the box below. Then add more words.loud music cars rubbish planes littering ships factories smoking building houses mobile phonesnoise pollution air pollution water pollution _ _ _ _ _ _ _ _ _III. Listening1. Work on1b. Lis

9、ten and complete the sentences.What was the problem?The river was _. Even the bottom(底部) of the river was full of _. There were no more _ for fishermen (渔民) to catch.What caused the problem?People are throwing _ into the river. Factories are putting _ into the river.How should the problem be solved?

10、We should write to the _ and ask them to _ the factories. Everyone should help to _ the river.2. Listen again and answer the following questions.1)What does Tony want to do later this afternoon?He wants to go swimming with Mark in the river later this afternoon.2) How was the river in the past? It u

11、sed to be so clean. It has been the nicest river in this town.3. 原文展示 used to do sth. “过去常常” 表示过去习惯性的动作但如今已不存在。 play a part in doing sth. “参与做某事; 在做某事上起作用”。IV. Practice1. Role-play the conversation in 1c.Mark: The river was dirty. Even the bottom of the river was full of rubbish.Tony: But it used to

12、 be so clean!Mark: Yes, but people are throwing litter into the river.Tony: Everyone in this town should play a part in cleaning it up!2. Make conversations about kinds of pollution in 1a.3. Work in groups. Each group choose a topic in 2a. Say the words or phrases related to the topic one by one. V.

13、 Listening1. Work on 2a. Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.A. land pollution B. air pollutionC. noise pollution D. water pollution2. Work on 2b. Listen again and complete the sentences.1) The air is badly polluted because there are _ on the road t

14、hese days.2) Factories that burn coal also _ the air with a lot of black smoke.3) There is also too much rubbish and waste. People _ things every day.4) People are also littering in _ like parks. This is turning beautiful places into ugly (丑陋) ones. Think about: What else can cause the two kinds of

15、pollution in life?3. 原文 Pay attention to the sentences.VI. Practice (Work on 2c)Use the information in 2a and 2b to role-play conversations between Jason and Susan.Jason: The air has become really polluted around here. Im getting very worried.Susan: Yes, I used to be able to see stars in the sky.Jas

16、on: The problem is that VII. DiscussionAsk students to discuss their ideas for solving the air pollution/ waste pollution problem. Work on 2d1. Read 2d and complete the chart.ProblemsSolving problemsair pollutiontake the bus, subway or ride a bike instead of drivingwaste pollutionbring a bag to go s

17、hoppingnever take wooden chopsticks or plastic forks when buying takeaway foodthrow rubbish in the bins2. Complete the sentences.What should we do?1) We should take _ or _ instead of driving.2) We should also _ _ _. Its good for health!3) Bring _ to go shopping.4) Never take _ or _ when buying takea

18、way food.5) _ in the bins and keep public places clean and beautiful.3. Role-play the conversation. Language points1. Were trying to save the earth! 我们正在竭尽全力拯救地球! try to do =try ones best to do 尽力去做某事【语境应用】翻译句子我们将努力在一周内完成这项工作。 Welltryto finish the work in a week.【拓展】try相关短语: try doing sth. 试着做某事 try

19、 on 试穿try out 尝试；试验；试试【语境应用】用try短语的适当形式填空。1) I went to the tailors to _ my new suit.2) Lets _ your method. It seems very good.3) I think you should _ to improve your English.4) Let me _ the story. 让我试着讲一讲这个故事吧。Keys: try on, try out, try your best, try telling2. Its good for health and it doesnt cost

20、 anything! cost v. 花费；使付出 指花费金钱，主语通常是物。 cost的过去式和过去分词均为cost。 sth. costs sb. some money某物花费某人多少钱【语境应用】翻译句子1) 王先生花了200元买了新衬衫。 The new shirt cost Mr Wang 200 yuan.2) 新电脑花了多少钱？ How much does the new computer cost? 辨析pay, take &spendtake花费时间, 常用于it takes sb. some time to do sth.句型中。在这一句型中，it作形式主语。spend 花

21、费时间和金钱，主语通常是人，常用于sb. spend(s) some time / money on sth.和sb. spend(s) some time / money (in) doing sth.两种句型。pay花费金钱，主语通常是人，常用于sb. pay(s) some money for sth.句型。【语境应用】根据句意用take, spend, pay或cost的适当形式填空。1) That new car _them lots of money.2) Mona _ 50 yuan on the books just now.3) It usually _me an hour

22、to do my homework.4) You should _some time practising your pronunciation.5) My brother _3,000 yuan for the new computer yesterday.Keys: cost, spend takes, spend, paid3. , we should take the bus or subway instead of driving.辨析instead& instead ofInstead adv.“代替；反而”，在句中作状语。 instead of“代替；而不是”，后接名词、代词、v

23、.-ing形式或介词短语等。【语境应用】选用instead或instead of填空。1) Well have tea in the garden _ in the house.2) Give me the green one _ the red one.3) Her aunt stayed at home _ swimming last Sunday.4) I didnt have a pen, so I used a pencil _.5) Youll have to ask Zhang Li _ me.Keys: instead of, instead of, instead of, i

24、nstead, instead of4. So together, our actions can make a difference and lead to a better future! 1) make a difference (to) (对)产生重大影响或作用，to是介词。 【拓展】 make no difference to 对没有影响 make some difference to 对有一些影响 e.g. It makes no difference whether you go today or tomorrow. The sea air has made some diffe

25、rence to her health.【语境应用】根据汉语意思完成下列句子（每空一词）。1) 你是去是留对我都无所谓。 It doesnt _ _ _ to me whether you go or stay.2) 学习驾驶时，若有一位好教练指导，效果则大不相同。 When youre learning to drive, having a good teacher makes _ _ _.Keys: make any difference, a big difference 2) lead to导致e.g. Eating too much sugar can lead to health

26、problems.【链接】lead sb. to .带领某人去e.g. His pet dog Lucky led us to his house just now.【语境应用】根据汉语意思完成英语句子，每空一词。1)工作太多、休息太少常常导致疾病。Too much work and too little rest often _ _ illness.2)昨天那个男孩带领他们去了那家超市。The boy _ _ _ the supermarket yesterday.Keys: lead to, led them to. Summarywrite to . 给写信the bottom of t

27、he river 河底throw litter into the river 往河里扔垃圾clean up . 把打扫干净land / air / noise / water pollution 土地/空气/噪音/水污染turn . into . 把变成cut down air pollution 减少空气污染instead of 代替be good for . 对有好处takeaway food 外卖食品keep public places clean and beautiful 保持公共场所干净美观make a difference 影响；有作用lead to 带来；导致. Exercis

28、es.根据句意及提示，补全句中所缺单词。1.Ccan be used to produce electricity.2. The new carca lot of money, but it was certainly worth it.3. There is aw bed, a table and two chairs in this small room.4. It is a very clean city. You will hardly findlwhen you walk along the street.5. My uncle is a greatfand he caught fo

29、ur fish this morning.6. Some cups in the shop are nice and expensive and the others areuand cheap.7. Living in this street has a lot of a . The only drawback (弊端) is noise.根据句意选择方框中恰当的短语填空。write to, lead to, clean up, cut down, play a part in1. What a mess! You should _ your room now.2. Every farmer knows that weather _ farming.3. As we all know, smoking too much can _ cancer and many