1、Unit 13 We re trying to save the earth. Section A 1 2a-2d 安樂初級中學 蘇奇上 一、教學目標：1. 語言學問目標 基本詞匯 ：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem, industry, law, scientific, afford, reusable, transportation, recyc

2、le, napkin, upside, gate, bottle, president, inspiration, iron, work, metal, creativity, 基本詞組 ：be harmful to, at the topof sth., take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back 基本句型 ：Were trying to save the earth. The river used to be so clean. The air is

3、 badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目標 : 能正確運用現在進行時, 現在完成時, 被動語態,情態動詞和 used to 句型；3. 情感目標 : 有環境危機意識,學會關注環境愛護環境；二、教學重難點：1. 教學重點：（1）能正確運用現在進行時,現在完成時,被動語態,情態動詞 和 used to 句型；（2）愛護環境的措施方法；2. 教學難點：能正確運用現在進行時, 現在完成時, 被

4、動語態,情態動詞和 used to 句型；三、教學步驟 : VI. Listening 1. 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about. A. land pollution B. air pollution 下載文檔可編輯- - - - - - - - - - - - - 第 1 頁,共 5 頁精品pdf 資料 可編輯資料 - - - - - - - - - - - - - -C. noise pollution D. water pollution Key

5、s: B A 2. 2b Listen again and complete the sentences. 1 The air is badly polluted because there are _ on the road these 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 _ l

6、ike parks. This is turning beautiful places into ugly 丑陋 ones. Keys: more cars pollute are throwing away public places 3. Listen and answer the questions. 1 Who is the interviewer talking to. 2 What are they talking. 3 What other problems do they see. Keys: Susan and Jason. The environmental problem

7、s. There s too much rubbish and waste in the streets.VII. Practice 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. Jason: The

8、problem is that VIII. Discussion Ask students what we should do to save the earth. Help students answer, turn off the lights when you leave a room; stop riding in cars; stop using paper towels or napkins; recycle books and paper. IX. Reading 1. Read 2d and complete the chart. 下載文檔可編輯- - - - - - - -

9、- - - - - 第 2 頁,共 5 頁精品pdf 資料 可編輯資料 - - - - - - - - - - - - - -Problems Solving problems air pollution waste pollution wooden 木頭的 chopsticks or plastic forks rubbish 2. Role-play the conversation. Interviewer: Jason and Susan, what are your ideas for solving these problems. Jason: Well, to cut down

10、air pollution, we should take the bus or subway instead of driving. Susan: Yeah, or ride a bike. There are other advantages 優點 of bike riding. Its good for health and it doesn花費 anything. Interviewer: Great ideas. What about waste pollution. Susan: Mmm, I think simple things like bringing a bag to g

11、o shopping can help. I started doing that a year ago. Jason: Me, too. Also, I never take wooden chopsticks or plastic 塑料 forks when I buy takeaway 外賣食品 food. I use the ones at home. Susan: And remember to throw rubbish in the bins and keep public places clean and beautiful for everyone. Interviewer:

12、 So together, our actions can make a difference and lead to a better future. X. Summary and language points 1. This is turning beautiful places into ugly ones. turn into 把 變成 e.g. The icy rain seemed like to turn into snow. 慢慢地凍雨又變成雪花的模樣；2. Its good for health and it doesnt cost anything.cost v. 花費；

13、使付出指花費金錢,主語通常是物；cost 的過去式和過去分詞均為cost；下載文檔可編輯- - - - - - - - - - - - - 第 3 頁,共 5 頁精品pdf 資料 可編輯資料 - - - - - - - - - - - - - -e.g. The new shirt cost Mr Wang 200 yuan. 王先生花了 200 元買了新襯衫；How much does the new computer cost. 新電腦花了多少錢？take, spend, pay & cost take,spend,pay 和 cost 都可以表示 “花費 ”,但它們的用法各有不同；1 t

14、ake 多表示花費時間,常用于 其中 it 作形式主語；It takes sb. some time to do sth. 這一句型中,e.g. It usually takes me 40 minutes to cook the dinner. 2 spend多表示花費時間和金錢, 主語通常是人,常用于 sb. spends some time / money on sth.和 sb. spends some time / money in doing sth.兩種句型；e.g. David spent 2,000 yuan on the new machine. My father spe

15、nds an hour in watching the news on TV every day. 3 pay多表示花費金錢,主語通常是人,常用于 句型；sb. pays some money for sth.e.g. Tommy paid 20 yuan for his breakfast yesterday. 4 cost多表示花費金錢,主語通常是物,常用于 sth. costs sb. some money. 句 型；e.g. The new dress cost Linda 88 yuan. 依據句意用 take, spend, pay或 cost 的適當形式填空；1 That new

16、 car _ them lots of money. 2 Mona _ 50 yuan on the books just now. 3 It usually _ me an hour to do my homework. 4 You should _ some time practising your pronunciation. 5 My brother _ 6, 000 yuan for the new computer yesterday. paid Keys cost spent takes spend 3. So together, our actions can make a d

17、ifference and lead to a better future. make a difference to表示對 產生影響或作用e.g. Do you think his words would make any difference to the final decision. 你認為他的話會對最終的打算產生影響嗎？The new teacher always encourages little Tom. This has made a big difference to him. 下載文檔可編輯- - - - - - - - - - - - - 第 4 頁,共 5 頁精品pdf 資料 可編輯資料 - - - - - - - - - - - - - -新來的老師總是勉勵小湯姆,這對他影響很大；XI. Exercises 用動詞的適當形式填空；1 Were trying _ save the earth.2 There used to_ be clean and beautiful. 3 There are too many _ for _to catch fish. 4 It s bad for environment to use _ wood chopsticks.Keys: to save be fish fishermen woode