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Unit 2 Saving the Earth Topic 1 Section D（教學設計）
Ⅰ. Material analysis
本課主活動是1a和Project。通過Grammar 來鞏固總結一般過去時和現在完成時的區別，通過 Functions來復習重要的表達法。1a按照“總—分—總”的模式分別介紹了各種污染的成因及危害。通過完成文章后的表格，訓練和提高學生獲取信息的能力。教師還可以利用表格內容，引導學生整合信息復述課文，鞏固課文內容。1b屬于同義轉換練習。Project部分培養學生動手動腦的能力，讓學生運用收集的信息和所學知識，通過墻報的形式來宣傳污染帶來的危害，讓更多的人關注環境污染，樹立環保意識，增強人們的憂患意識和社會責任感。
Ⅱ.Teaching aims
1.Knowledge aims：
掌握本課的重點詞匯和短語。
總結一般過去時和現在完成時的區別；復習本話題的重點表達法。
2.Skill aims:
能讀懂與環境污染問題有關的文章。
能根據關鍵詞復述課文。
3. Emotional aims: (optional)
通過了解各種污染帶來的危害，幫助學生樹立環保意識，愛護環境，保護地球。
4.Culture awareness: (optional)
通過學習，引導學生了解環境污染對人類健康有巨大的危害，不同種類的污染體現在不同的方面。
Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: coal, create, blood, planet, in many ways, with the development of industry, high blood pressure
Grammar: the differences between the simple past and present perfect
2. Difficult points：
能根據關鍵詞復述課文。
能夠進行同義句轉換，用不同的短語表達相同的意思。
Ⅳ. Learning strategies
能自己歸納總結所學的知識。
學會利用關鍵詞復述課文。
學會運用所學知識，宣傳生活中的常識。
Ⅴ. Teaching aids
與污染相關的圖片；詞性辨析的試題；幻燈片。
Ⅵ. Teaching procedures
Stage(time period) Interactionpatterns Teacher activity Student activity Remarks
1 Getting students ready for learning（5 mins) Class activity Step 1: Let the Ss fill in the blanks with the correct forms of the given words.T: Hello, boys and girls. Please fill in the blanks with the correct forms of the given words.1）The man working in a _________ factory goes deaf because of the loud _______.(noise / noisy)2）Burning coal can _______ the air, and we call it air _______. (pollute / pollution)3）Using too many chemicals in the land can cause ________food and it’s bad for people’s ________. (health / healthy / unhealthy)4）Strong light is _______ to our eyes and does great _______ our body. (harm / harmful)5）Mrs. Zhou can hardly ________ because of the bad air. And she often coughs day and night, out of ________. (breath / breathe)T: OK, now let’s check the answer. Fill in the blanks with the correct forms of the given words.S1: noisy and noiseS2: pollute and pollutionS3: unhealthy and healthS4: harmful and harmS5: breathe and breath 學生在做“用所給單詞的適當形式填空”這種題型時，稍有困難。因此，教師要進行引導。先通過二選一的方式簡化題目難度，再讓學生體會到詞性不同，用法也不同。
2 Lead-in (3 mins) Group work Let the Ss list what they have learnt in this topic with their group members, and then finish Grammar and Functions.T: Wonderful! Now list what you have learnt in this topic with your group members, and then finish the Grammar and Functions.…T: If you have finished, hands up to let me know. OK, let’s check the answers. List what they have learnt in this topic with their group members, then finish Grammar and Functions.
3 Pre-reading (5 mins) Class activity Check the Ss’ HMK and encourage the Ss to read their passages about pollution to the class.T: Please take out your homework. I have checked your work. Most of you did very well. But a few students have to improve it. I believe you will be better next time. Now I want some Ss to share your work with us. Any volunteers S1: Water pollution is very serious and we can find it almost everywhere… Read out their passages to the class.
4 While-reading (10 mins) Individual workPair work Step 1: Let the Ss scan 1a and find the main idea of this passage.T: You are right. Pollution is harmful to people’s 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 about 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: Let’s check the answers together. Read 1a 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. S1: gas, oil and coalS2: sore eyes and breathing problemsS3: litter everywhere, use too many chemicalsS4… 建議：閱讀部分可以采取兩個步驟，一是泛讀，二是精讀。泛讀讓學生了解文章大意，精讀可以讓學生注意段落、語句之間的邏輯關系，培養學生寫作思維能力。
5 Post-reading (10 mins) Individual work Individual work Step 1: Let the Ss read the article sentence by sentence and find the key points they think. Write them down on the Bb 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. …T: Volunteers Step 2: Let the Ss finish 1b.T: Very good. You learnt so well. Now please finish 1b yourselves.…T: OK, let’s check your answers together.S1: are harmfulS2: hearing loss S3: go, because ofT: Well done! Read the article, circle the key points and try to explain them. S1: “including” means “包括” S2: “with the increase in population” means “隨著人口的增長”S3: …Finish 1b according to the given sentences.S1:are harmfulS2:hearing loss S3:go, because of 做完閱讀練習后，讓學生自己劃出文章中重要的詞組、連詞，并自己做出解釋。這樣可以幫助他們更好的理解所讀和所學，并且利于復述課文。復述時可以選擇用原文章中的短語，也鼓勵學生自由發揮，進行知識的再鞏固。
6 Project(12 mins) Group work Project: Let the Ss make a wall newspaper about pollution.Step 1: Discuss what kinds of pollutions the pictures show and their bad effects.T: Now, look at the pictures. What kind of pollution does each picture show S1: Water pollution.S2: Soil pollution.S3: Air pollution.T: Right. We have learnt a lot about pollution in this topic. Now discuss the effects of the pollution in groups. You’d better write the information down.S4: Water pollution is harmful to our health. We will have a stomachache if we drink the dirty water…S5: Soil pollution will bring us unhealthy food. The food is bad for our body…S6: If the air is polluted, it is bad for our lungs. We can hardly breathe…Step 2: Collect more information and pictures about pollution. Then make a wall newspaper about pollution in groups.T: Now you can ask two Ss to collect more information about pollution, the rest can begin to design your wall newspapers with words and pictures.T: Now if you have finished, please stick it on the wall behind. Let’s choose the best one. Let the Ss make a wall newspaper about pollution. Project部分具體操作說明：準備充分：在進行探究前，要做好充分的準備工作，有關污染危害方面的主題應該提前討論完成。分工明確：組內的六名成員要進行明確的分工合作，兩名同學收集污染危害方面的案例，兩名同學設計版面，另外兩名同學負責畫畫等。評價機制：墻報設計好后，教師要組織以小組為單位的作品評價，可以班級所有成員參與，用積分制的方法；也可以籌備一個專門的“評委組”進行評價。展示環節：課后，教師可以對前三名的作品進行指導，在適當的修改后，可以在班級、校園或者社區的公示欄進行展出，真正發揮墻報的宣傳作用，增強小組的凝聚力和集體榮譽感。
7 Summarizing and assigning homework (3 mins) HMK: Let the Ss go over what they have learnt about this topic. Summarize the key points on the exercise book. Encourage student A in each group to make new sentences with those key points.T: We have finished Topic1. Now sum up the key points in this topic on 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 new sentences with those key points. 作業布置時，可以有兩種或者三種層次，對組內A類生要有更高的要求，如果作業太簡單，他們會失去挑戰的興趣。對組內的C類生，要降低難度，只要能很好的完成基本任務就行。
Ⅶ. Blackboard design
Pollution has caused too many problems.Section D
Finish the exercises:1）The man working in a _________ factory goes deafbecause of the loud _______.(noise / noisy)2）Burning coal can _______ the air, and we callit air _______. (pollute / pollution)3）Using too many chemicals in the land can cause________food and it’s bad for people’s ________.(health / healthy / unhealthy)4）Strong light is _______ to our eyes and doesgreat _______ our body. (harm / harmful)5）Mrs. Zhou can hardly ________ because of the dad air.And she often coughs day and night, out of ________.(breath / breathe) New words and phrases:coalcreatebloodplanetin many wayswith the development of industryhigh blood pressure
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