1、Section A第2课时（3a4c）类别学习重点重点单词ruler, boil, smell, national, fridge, low, translate, lock, earthquake, biscuit, cookie, instrument, remain, trade, doubt, somebody, ring, bell, sudden, musical重点短语by accident, without doubt, all of a sudden, fall into, less than, notuntil, take place, drop into重点句式1.How
2、 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.课前预习写一写1.煮沸；烧开boil2.保持不变；剩余remain3.气味smell4.国家的；民族的national译一译1.意外地by accident2.发生take place3.毫无疑问without doubt
3、4.在露天的炉火上over the open fire背一背1.茶是什么时候第一次被喝的？When was tea first drunk?2.毫无疑问中国人是最了解茶的原生态的人。The Chinese are without doubt the ones who best understand the nature of tea.新课导入Say that Chinese tea is drunk and famous all over the world,then ask the students if they know how the tea was invented.新课展示 【完成
4、教材3a4c的教学任务】1.3a学生快速阅读本节文章，找出每段的段意。2.3b学生再次阅读该文章，找出本节问题的答案。3.3c学生根据文意用方框中单词的适当形式完成句子。4.处理3a重难点，学生朗读。5.4a用被动语态改写句子。6.4b学生用方框内动词的正确形式完成句子。7.4c学生确定这些句子应该用主动语态还是被动语态。在空白处填上正确的形式。【语法提要】1.by accident(1)by accident=by chance/accidentally，意为“偶然地；意外地”，作副词用。如：He thought out the solution to the problem by acci
5、dent.他偶然想出了解决问题的办法。We didnt know he did it whether by accident or design.我们不知道他是偶然还是有意做了这件事。(2)by accident与by mistake的区别：by mistake表示“不小心地；错误地”。如：I took your umbrella by mistake yesterday.昨天我错拿了你的伞。He wrote the word “fell” by mistake in the English class.上英语课时他错误地把单词写成了“fell”。by accident表示“偶然地”。如：I
6、met my old neighbour in the park by accident/chance yesterday.昨天我偶然在公园碰到了老邻居。【问题探究】1.Great changes have taken place in Suzhou in recent years.2.It B that you got a lot of awards.A.reports B.is reported C.reported3.When did he come back last night?He B back _ 10 oclock.A.came;untilB.didnt come;untilC
7、.came;till4. Without（with） doubt，China is developing fast now.活学活练(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;happe
8、ned(A)3. The teacher called me “Li Lei” time after time _ .A.by mistakeB.by accidentC.by chance布置作业：教师引导学生课后完成本课时对应练习，并预习下一课时内容。教学反思本课时通过阅读练习让学生体验和感悟被动语态的运用，同时通过Grammar Focus进一步总结归纳被动语态中过去分词的规则变化，然后通过4a、4b、4c的练习进一步巩固。我让学生采用自主学习的方式，自主编对话，练习重点句型，在使用导学案进行教学时，我认为仍然离不开创设情境，以激发学生的学习兴趣。教学过程中老师的疑问：教师点评和总结：教学说明：询问学生有关茶的情况，为学习3a 作铺垫。4
