九年級英語全冊 Unit 6 When was it invented（第4課時）Section B（1a-1e）教案 （新版）人教新目標(biāo)版

Unit 6 When was it invented?類別課時要點重點單詞1. crispy adj. 脆的；酥脆的；2. salty adj. 咸的；3.sour adj. 酸的，有酸味的；4.customer n. 顧客。重點句式1. -Did you know potato chips were invented by mistake? -I didnt know that. Who invented them? -Potato chips were invented by a cook called George Grum. -我不知道，是誰發(fā)明的? -土豆條是由一個叫George Grum的廚師發(fā)明的。2. The customer thought the potatoes were not thin enough.顧客認為土豆不夠薄。3. Finally he put lots of salt on them so they were salty enough. 最后他在他們上面撒了許多鹽以使他們足夠咸。第四課時 Section B（1a 1e）I. 知識目標(biāo)II. 課堂環(huán)節(jié)§自主學(xué)習(xí)方案【新詞自查】根據(jù)句意及首字母提示完成單詞。1. I dont like lemons because they are too sour. 2. Lucy and Lily are twins. People often mistake them for each other.3. For a restaurant, customers are the most important.4. The fish was too salty because my mom put too much salt on it.5. We often put the food into the fridge to keep it fresh in summer.§課堂導(dǎo)學(xué)方案回顧：在前面的課程我們已經(jīng)學(xué)習(xí)并了解了幾種有用的發(fā)明，它們在很大程度上改變了我們的生活，使我們的生活更豐富多彩。下面提幾個簡單的問題來回顧上節(jié)課的內(nèi)容：4. When was the telephone invented? _5. Can you imagine the life without telephones?_6. What do you think is the most helpful invention?_4. What would you most like to invent if you could?_環(huán)節(jié)說明：課前的師生問答互動不僅讓學(xué)生回顧了上節(jié)課的內(nèi)容，鞏固了被動語態(tài)，同時，讓他們知道創(chuàng)新和發(fā)明可以改善人類的生活，要勇于開拓、創(chuàng)新。Step 2完成教材1a-1e的任務(wù)1. 要求學(xué)生翻開課本P45，迅速閱讀1a部分的內(nèi)容。并按要求完成課本上相應(yīng)的任務(wù)in 1a. 然后要求4名同學(xué)給出自己的答案，并進行個讀，齊讀。（2分鐘）要求學(xué)生完成1b部分的任務(wù)：Write the name of a different food after each word .然后邀請幾名同學(xué)給出自己的答案。并把收集的答案列舉在黑板上。（4分鐘） 參考案例sweet bananas; crispy chips; salty noodles; sour grapes3. 聽第一遍錄音，完成課本上1c部分的任務(wù): Listen and circle T or F. (2分鐘) 1T 2F 3T 4F 5F 6T4. 聽第二遍錄音，完成課本上1d部分的任務(wù)：Listen and complete the sentences. (2分鐘)5. 聽力內(nèi)容鞏固訓(xùn)練。要求學(xué)生根據(jù)所聽到的內(nèi)容完成下列對話。完成后要求若干學(xué)生給出自己的答案。以鞏固對聽力內(nèi)容的了解。（3分鐘）Do you like potato chips? Do you know how the potato chips were invented? Now, let's listen and fill in the blanks.Potato chips were invented by mistake. They were invented by a chef called George Crum. One day a customer thought the fried potatoes weren't thin enough and weren't salty enough. So George cut them really thin and cooked them for a long time until they were crispy. And he sprinkled a lot of salt on them so they were salty.6. 聽第三遍錄音，并打開聽力材料，全班逐句進行跟讀。（2分鐘）7. 放下聽力材料，要求學(xué)生利用1c和1d的聽力內(nèi)容；模仿1e方框所給的對話編造一個有關(guān)土豆條的發(fā)明的對話練習(xí)。然后邀請2-3對同學(xué)當(dāng)堂分角色演示?？茨囊粚Φ谋憩F(xiàn)最佳。（5分鐘）環(huán)節(jié)說明：將聽、說、讀、寫的任務(wù)結(jié)合起來不僅鍛煉了學(xué)生的語言綜合運用能力，還鞏固了學(xué)生對目標(biāo)語言的學(xué)習(xí)、識記和運用; 薯條的發(fā)明的小故事有很強的趣味性，讓學(xué)生體會到了英語學(xué)習(xí)的樂趣。§當(dāng)堂評價方案（詳見當(dāng)堂訓(xùn)練部分）§備課資料包a. 詞匯包：by mistake 錯誤地by mistake 是介詞短語，意為“錯誤地；無意地；不小心地”，指由于錯誤的判斷而千百萬的失誤，常在句中作狀語?！緜湔n例句】I took your bag instead of mine by mistake. 我錯拿了你的手提包，還以為是我的呢。Susan forgot her key and locked herself out by mistake. 蘇珊忘了帶鑰匙，誤把自己關(guān)在門外了?！緳M向輻射】mistake.formistake.for把錯認為, 錯把當(dāng)作She mistook him for the professor.她把他錯當(dāng)作教授了?！菊n堂變式】Im sorry Ive taken your dictionary _ because they have the same colour. It doesnt matter. A. at once B. by mistake C. in general D. as well 【解析】由because they have the same colour可知是錯拿了詞典，正確答案是B。b. 句式包：1.George wanted to make the customer happy. 喬治想讓顧客開心。句中的make意為“使得”，happy是形容詞，作賓語you的補足語，對賓語起補充說明作用，常用的結(jié)構(gòu)為“make名詞/代詞形容詞”。【備課例句】The bad news makes her sad. 那個壞消息使得她傷心不已。A boy broke the window. It made the headmaster angry. 一個孩子打碎了玻璃。這使得校長很生氣?！緶剀疤崾尽慨?dāng)賓語是不定式短語或從句時，多用it作形式賓語。I made it a condition that everybody must be on time. 我提出一個條件，人人都要準(zhǔn)時。The heavy rain made it impossible for us to go out. 大雨使得我們無法出去?！緳M向輻射】make的其他相關(guān)句式1.“make賓語n”意為使/讓某人 / 某物(成為)”?！纠洹縒e made him captain of our football team. 我們推選他作我們足球隊隊長。We made him our monitor. 我們選他當(dāng)班長。2.“make賓語do sth”意為“使某人做某事”。 在被動語態(tài)中，此類結(jié)構(gòu)中省略的動詞不定式 to 要還原?！纠洹縊ur teacher makes us feel more confident. 老師使得我們感到更自信了。The boy was made to work twelve hours a day. 這個男孩被迫每天干十二個小時的活。【課堂變式】What do you think her ? A. make; sadB. makes; sadlyC. made; sadD. made; sadly【解析】what 作主語時，謂語動詞要用第三要稱單數(shù)形式，可排除A。再根據(jù)“make + sb. / sth. + adj.”確定選C。sadly是副詞形式。6