九年級英語全冊Unit6Whenwasitinvented(第4課時)SectionB

1、Unit 6 When was it inven ted?第四課時Section B(1a 1e)I.知識目標類別課時要點重點單詞1. crispyadj.脆的；酥脆的；2. saltyadj.咸的；3.souradj.酸的，有酸味的；4.customern.顧客。重點句式1. -Did you know potato chips were inven ted by mistake?-1 did nt know that. Who inven ted them?-Potato chips were inven ted by a cook called George Grum.-我不知道，是誰發(fā)

2、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 eno ugh.顧客認為土豆不夠薄。3. Fin ally he put lots of salt on them so they were salty eno ugh.最后他在他們上面撒了許多鹽以使他們足夠咸。22II.課堂環(huán)節(jié)自主學習方案【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

3、. People ofte n mistake them for each other.3. For a restaura nt, customers are the most importa nt.34. The fish was too salty because my mom put too much salt on it.5. We ofte n put the food into the fridge to keep it fresh in summer.課堂導學方案回顧：在前面的課程我們已經(jīng)學習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

4、幾個簡單的問題來回顧上節(jié)課的內容：4. Whe n was the teleph one inven ted?5. Can you imagi ne the life without teleph on es?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生回顧了上節(jié)課的內容，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1.要求學生

5、翻開課本P45,迅速閱讀1a部分的內容。并按要求完成課本上相應的任務in 1a.然后要求4名同學給出自己的答案，并進行個讀，齊讀。（2分鐘）要求學生完成1b部分的任務：Write the name of a differe nt food after each word .然后邀請幾名同學給出自己的答案。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 no odles; sour grapes _3.聽第一遍錄音，完成課本上1c部分的任務：Listen and circle T or F. （2分鐘）1.T 2.F 3.T 4

6、.F 5.F 6.T4.聽第二遍錄音，完成課本上1d部分的任務：Listen and complete the sentences. （2分鐘）245.聽力內容鞏固訓練。要求學生根據(jù)所聽到的內容完成下列對話。完成后要求若干學生給出自己的答案。以鞏固對聽力內容的了解。（3分鐘）Do you like potato chips? Do you know how the potato chips were inven ted?Now, lets liste n and fill in the bla nks.Potato chips were inven ted by mistake. They w

7、ere inven ted by a chef calledGeorge Crum. One day a customer thought the fried potatoes were nt thi n eno ugh and were nt saltyeno ugh. So George cut them really thin and cooked them for a long time until they were crispy. And hesprinkled 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

8、逐句進行跟讀。（2分鐘）7.放下聽力材料，要求學生利用1c和1d的聽力內容；模仿1e方框所給的對話編造一個有關土豆條的發(fā)明的對話練習。然后邀請2-3對同學當堂分角色演示?？茨囊粚Φ谋憩F(xiàn)最佳。（5分鐘）環(huán)節(jié)說明：將聽、說、讀、寫的任務結合起來不僅鍛煉了學生的語言綜合運用能力，還鞏固了學生對目標語言的學習、識記和運用；薯條的發(fā)明的小故事有很強的趣味性，讓學生體會到了英語學習的樂趣。當堂評價方案（詳見當堂訓練部分）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 y

9、our bag in stead of mine by mistake.我錯拿了你的手提包，還以為是我的呢。Susa n forgot her key and locked herself out by mistake.蘇珊忘了帶鑰匙，誤把自己關在門外了?！緳M向輻射】mistake.formistake.for把.錯認為，錯把.當作She mistook him for the professor.她把他錯當作教授了。5課堂變式】Im sorry Ive taken your dictionary _ because they have the same colour.It doesnt ma

10、tter.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, 常用的結構為“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 wi

11、ndow. It made the headmaster angry.校長很生氣。【溫馨提示】當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.時。The heavy rain made it impossible for us to go out.【橫向輻射】make的其他相關句式1.“make+賓語+n”意為使/讓某人/某物（成為）例句】We 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，此類結構中省略的動詞不定式to要還原。例句】一個孩子打碎了玻璃。這使得我提出一個條件，人人都要準26Our teacher makes us feel more con fide nt.The boy was made to work twelve hours a day.【課堂變