仁愛版九年級Unit2

1、仁愛版九年級 Unit 2 Saving the EarthTopic 1Pollution causes too many problems.Section A 教學(xué)設(shè)計Unit 2 Saving the EarthTopic 1 Pollution causes too many problems.Section AThe main activities are 1a, 1b and 3a. 本課重點活動是1a、1b和3a。. Teaching aims and demands 教學(xué)目標(biāo)1. Learn some new words and phrases:bee, my goodness

2、, waste, stream, breathe, be harmful to, influence2. Learn some useful sentences: (1) Oh, my goodness! (2) Look, there are several chemical factories pouring waste water into the stream.3. Learn direct speech and indirect speech:(1) Kangkang said that it was a beautiful place with lots of flowers an

3、d grass.(2) Kangkang said that the flowers and grass had gone.4. Learn and talk about different kinds of pollution:(1) Air pollution makes people sick.(2) Light pollution is harmful to eyes.(3) Litter influences our environment. Teaching aids 教具幻燈片/小黑板/錄音機(jī)/圖片. Five-finger Teaching Plan 五指教學(xué)方案Step 1

4、Review 第一步 復(fù)習(xí)(時間:3分鐘)回顧第一單元有關(guān)家鄉(xiāng)變化的內(nèi)容，復(fù)習(xí)現(xiàn)在完成時態(tài)，導(dǎo)入新課。(通過對第一單元的復(fù)習(xí)，導(dǎo)入被污染的西山景象。)T: Last unit, we have learned some changes in our hometown. Can you say some?S1: The roads are wider.S2: The buildings are higher and higher.S3: The living conditions have improvedS4: T: Yes. Many changes have happened in our

5、 hometown. Lets look at the two pictures about the West Hill and discuss the changes between them.Step 2 Presentation 第二步 呈現(xiàn)(時間:15分鐘)通過比較1a的兩幅圖畫的差異，展開對話，學(xué)習(xí)部分生詞，呈現(xiàn)1a。1. (利用幻燈片展示1a中的兩幅圖，師生問答。)T: Are there any differences between them?Ss: Yes.T: Lets look at Picture 1. What can you see?S1: I can see so

6、me flowers and grass.S2: I can see some butterflies.T: Yes, there are some butterflies dancing.(板書并要求學(xué)生掌握。)there is/are doing sth.T: What else can you see?S3: I can see a rabbit.S4: I can see some houses.S5: T: (指著蜜蜂。)Whats it?Ss: Its a bee./Sorry, I dont know.T: (Yes,) its a bee. There is a bee fly

7、ing.(板書并要求學(xué)生掌握。)beeT: (指著小溪。) Whats it?Ss: Its a river.T: We can call it stream. And there are some fishes swimming in the stream.(板書并要求學(xué)生掌握。)streamT: We know the West Hill was a beautiful place. Look at Picture 2. Oh, my goodness! What has happened to the West Hill?(板書并要求學(xué)生掌握。)my goodnessS6: The ra

8、bbit has disappeared.S7: The fish have died.S8: The trees have died.S9: There are no flowers, butterflies, grass, and so on.T: Yes, everything has changed. Why?S10: Because there are many factories.T: (指著工廠。)Yes, there are several factories. They are chemical factories.(板書并要求學(xué)生理解。)chemicalT: (指著工廠排放

9、出的黑煙，并捂住鼻子做呼吸困難狀。) They are making much smoke. It can cause breathing problem.(板書并要求學(xué)生掌握。)breatheT: (指著排放的廢物。)And they are pouring waste water into the stream.(板書并要求學(xué)生掌握。)wasteT: From Picture 2, we know the chemical factories are harmful to the animals and plants.(板書并要求學(xué)生掌握。)harmfulbe harmful to2. (

10、要求學(xué)生不看書，只聽錄音，捕捉要點，回答問題，從而提高聽力水平。)T: Close your books. Listen to the tape carefully, then answer the questions.(出示小黑板上的問題，聽錄音1a。)(1)Where are they going to have a picnic?(2)Why does Kangkang say “Oh, my goodness!” ?3. (核對答案，板書1a的關(guān)鍵詞。)beautifulfreshcleangonedirtyterriblewaste waterStep 3 Consolidation

11、 第三步 鞏固(時間:12分鐘)復(fù)述1a，引入本課重點，講解和操練“直接引語”與“間接引語”，完成1b。1. (要求學(xué)生在限定時間內(nèi)，根據(jù)黑板上的關(guān)鍵詞復(fù)述對話。)T: Try to retell 1a. You can use the key words on the blackboard and the pictures about West Hill.Example: In the past, the West Hill was a beautiful place with flowers and grass. We could see bees and butterflies danc

12、ing. The air was fresh, the water was very clean and we could see fish swimming. But now, all the flowers, grass, bees, butterflies and fish have gone. The water is so dirty and it smells terrible. Why? Because there are several chemical factories pouring waste water into the stream. So we should pr

13、otect the environment.2. (引入語法“直接引語”和“間接引語”。要求學(xué)生根據(jù)1a回答教師的問題。)T: What did Kangkang say?(要求學(xué)生輪流回答。)S1: Ive been there before.T: Yes. Kangkang said that he had been there before.T: Next, please.S2: Its a beautiful place with lots of flowers and grass.T: OK. Kangkang said that it was a beautiful place w

14、ith lots of flowers and grass.T: Next, please.S3: The air is fresh and the water is clean, and you will see T: So Kangkang said that the air was fresh and the water was clean, and they would see (板書以上三個畫線句子，要求學(xué)生將板書與1a中的原句對比找出不同之處，教師引導(dǎo)和補(bǔ)充。學(xué)習(xí)“直接引語”和“間接引語”。)Kangkang said that he had been there before.K

15、angkang said that it was a beautiful place with lots of flowers and grass.Kangkang said that the air was fresh and the water was clean, and they would see 3. (讓學(xué)生完成1b，并作報告。)T: Fill out the table in 1b, then give a report, using “Kangkang/Maria said ”.Step 4 Practice 第四步 練習(xí)(時間:10分鐘)通過聽力訓(xùn)練，引出污染的概念，充分調(diào)

16、動學(xué)生的積極性，加深對各種污染及其危害的理解，完成2, 3a和3b。1. (播放2錄音，學(xué)生聽后完成2。)T: We know, without plants and animals, the West Hill isnt beautiful. So plants and animals are important. Lets look at the lovely animals in the pictures in 2. Listen to the tape and write down the numbers of the correct pictures.(若學(xué)生沒聽懂，可再放一遍，核對

17、答案。)2. (學(xué)生看圖完成3a。)T: After listening, do you know what does great harm to animals?Ss: Pollution.T: Yes. Therere many kinds of pollution. Lets look at the pictures in 3a and match them with the phrases given. Try to guess the meaning of soil.(板書并要求學(xué)生理解。)soil (核對答案。)3. (讓學(xué)生用3a的短語完成3b。) T: Pollution ha

18、s caused many problems. What problems has it caused? Please complete 3b with the phrases in 3a. (核對答案，并板書influence，要求學(xué)生掌握。)influenceStep 5 Project 第五步 綜合探究活動(時間:5分鐘)通過游戲及調(diào)查的方式，加深學(xué)生對污染及其危害的印象，增強(qiáng)學(xué)生的環(huán)保意識。1. Guessing games.(教師讓一學(xué)生到講臺，從3a所提供的有關(guān)污染的圖片中任取一張，正面面向全體學(xué)生，背面面向自己。臺下學(xué)生描述圖片上的內(nèi)容或引起的污染問題，讓臺上的學(xué)生猜出該種污染的名稱。)T: Every one of you can describe the picture. And the student in the front of the classroom tries to tell us what kind of pollution it is.Example: (S1任意抽取一張圖片。)S2 : Its produced in a factory. (教師幫助學(xué)生描述。)S3 : It smells terrible.S4 : Its harmfu