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1、 Unit 9 When was it invented? Section A 3a-4 Learning goals: Use the sentences “What do you think is the most helpful / annoying invention? I think the most helpful / annoying invention is ...” to talk about some inventions. Step 1 Preview List some inventions with students. Then let student

2、s ask and answer with the following sentences in groups. 溫故知新 Step 2 Presentation Show a picture of an alarm clock. And ask students. What is this in the picture? What is it used for? Do you think it is helpful / annoying? A: What’s this? B: It is an alarm clock. A: What is it used fo

3、r? B: It is used for waking people up in the morning. A: Do you think it is annoying? B: Sometimes, when I want to go on sleep. Show the pictures of a light bulb/a microwave oven/a vacuum cleaner/an air-conditioner/a truck/soundproof door and window. And talk about them using the sentences above

4、. 通過圖片練習(xí)很直觀，而且對(duì)以上對(duì)話進(jìn)行了充分地自主合作練習(xí)。使學(xué)生的口語(yǔ)練習(xí)地很好。通過此方法讓學(xué)生表達(dá)對(duì)創(chuàng)造和發(fā)明事物的認(rèn)識(shí)和看法。 Make a list of five helpful inventions and five annoying inventions. 此活動(dòng)用目標(biāo)語(yǔ)言為學(xué)生提供聽說(shuō)練習(xí)。同時(shí)進(jìn)一步讓學(xué)生表達(dá)自己對(duì)創(chuàng)造和發(fā)明事物的認(rèn)識(shí)和看法。 Step 3 Group work 　T: Imagine that you are alone on a tiny island．Choose five inventions you would like to h

5、ave on the island with you．Tell the group what you chose and why. Maybe you can use the following drills： 　　I’d like to have a…because I could… 　　It’s used for… 　　I think the most helpful invention is．．．??? ． 　　But that’s not going to help you leave the island．I think it would be better to leave

6、… 通過來(lái)完成一個(gè)任務(wù)．讓學(xué)生運(yùn)用所學(xué)內(nèi)容，既復(fù)習(xí)第一課時(shí)所學(xué)的語(yǔ)言目標(biāo)和鞏固了本課所學(xué)的語(yǔ)言目標(biāo)，又開拓了學(xué)生的思維，培養(yǎng)了學(xué)生在實(shí)際生活中運(yùn)用本課所學(xué)內(nèi)容，來(lái)解決現(xiàn)實(shí)生活中的實(shí)際問題的能力。 翻譯探究： I’d like to have a radio because I could listen to music all day.我想有一個(gè)收音機(jī)，這樣我就可以整天聽音樂了。 本句中的情態(tài)動(dòng)詞could用來(lái)表示邏輯上或理論上的可能性，而不是某種________將要發(fā)生或正在發(fā)生的可能性。 Anybody ________make mistake.任何人都可能犯錯(cuò)誤。 The w

7、eather here_________ very cold in winter. 冬天這兒的天氣很冷。 【拓展】could也表示人或動(dòng)物的內(nèi)在能力，有某種_____________而能夠做某事。 He hurt his foot and___________ soccer. 他的腳受了傷，所以他不能踢足球了。 答案： 實(shí)際上/ could/ could be/知識(shí)或者技能/ couldn’t play 自主檢測(cè)題： 一．用括號(hào)內(nèi)所給動(dòng)詞的正確形式填空，每個(gè)空格所填詞數(shù)不限。 1. Sheep __________ (keep) by farmers for__________ (

8、produce) wool and mutton. 2. English __________ in most middle schools in China. (teach) 3. Usually those letters __________ in English. (write) 4. __________ the classroom___________ by you every day? (clean) 5. Knives are used by people for__________ things. (cut) 6. I hear her mother________

9、__ back from Australia for two months. (be) 7. English __________ as a first language in Germany. (not, speak) 8. The children __________ a good time in the park when I saw them. (have) 9. She spends half an hour __________ English every morning. (read) 10. How long __________ they _________ each other? (know) 參考答案：1.is kept/ producing 2.is taught 3.are written 4.Is cleaned 5.cutting 6.hsa been 7.isn’t spoken 8.were having 9. reading 10. have known 二．完成翻譯探究上Section A的練習(xí)題。 使用建議： 1. 確保學(xué)生掌握形容詞，副詞比較級(jí)最高級(jí)和被動(dòng)語(yǔ)態(tài)時(shí)再進(jìn)行本課。 2. 給學(xué)生充分的時(shí)間進(jìn)行對(duì)話練習(xí)。 5