初中英語教材解讀人教九年級上冊Unit6 When was it inventedU6

1、Section A第2課時（3a4c） 類別學習重點重點單詞ruler, boil, smell, national, fridge, low, translate, lock, earthquake, biscuit, cookie, instrument, remain, trade, doubt, somebody, ring, bell, sudden, musical重點短語by accident, without doubt, all of a sudden, fall into, less than, notuntil, take place, drop into重點句式1.Ho

2、w was tea invented？2.The tea trade from China to Western countries took place in the 19th century.3.It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink. 課前預(yù)習寫一寫1.煮沸；燒開boil2.保持不變；剩余remain3.氣味smell4.國家的；民族的national譯一譯1.意外地by accident2.發(fā)生take place3.毫無疑問without dou

3、bt4.在露天的爐火上over the open fire背一背1.茶是什么時候第一次被喝的？When was tea first drunk?2.毫無疑問中國人是最了解茶的原生態(tài)的人。The Chinese are without doubt the ones who best understand the nature of tea. 新課導入Say that Chinese tea is drunk and famous all over the world,then ask the students if they know how the tea was invented.新課展示

4、【完成教材3a4c的教學任務(wù)】1.3a學生快速閱讀本節(jié)文章，找出每段的段意。2.3b學生再次閱讀該文章，找出本節(jié)問題的答案。3.3c學生根據(jù)文意用方框中單詞的適當形式完成句子。4.處理3a重難點，學生朗讀。5.4a用被動語態(tài)改寫句子。6.4b學生用方框內(nèi)動詞的正確形式完成句子。7.4c學生確定這些句子應(yīng)該用主動語態(tài)還是被動語態(tài)。在空白處填上正確的形式。【語法提要】1.by accident(1)by accident=by chance/accidentally，意為“偶然地；意外地”，作副詞用。如：He thought out the solution to the problem by a

5、ccident.他偶然想出了解決問題的辦法。We didnt know he did it whether by accident or design.我們不知道他是偶然還是有意做了這件事。(2)by accident與by mistake的區(qū)別：by mistake表示“不小心地；錯誤地”。如：I took your umbrella by mistake yesterday.昨天我錯拿了你的傘。He wrote the word “fell” by mistake in the English class.上英語課時他錯誤地把單詞寫成了“fell”。by accident表示“偶然地”。如

6、：I met my old neighbour in the park by accident/chance yesterday.昨天我偶然在公園碰到了老鄰居?！締栴}探究】1.Great changes have taken place in Suzhou in recent years.2.ItB that you got a lot of awards.A.reports B.is reported C.reported3.When did he come back last night?HeBback _ 10 oclock.A.came;untilB.didnt come;untilC

7、.came;till4. Without（with） doubt，China is developing fast now. 活學活練(B)1.That child broke his leg _ when he was climbing the mountain.A.by mistakeB.by accidentC.by chance(A)2.What _ to you?Great changes _ there so that I couldnt find my house.A.happened;took place B.took place;happenedC.happened;happened(A)3. The teacher called me “Li Lei” time after time _ .A.by mistakeB.by accidentC.by chance 布置作業(yè)：教師引導學生課后完成本課時對應(yīng)練習，并預(yù)習下一課時內(nèi)容。 教學反思本課時通過閱讀練習讓學生體驗和感悟被動語態(tài)的運用，同時通過Grammar Focus進一步總結(jié)