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2.短语：by accident，take place，without doubt ,in the 19th century, fall into, over an open fire 的用法。
教学难点
一般过去时被动语态的用法。
三．学情分析
对于九年级的学生来说,部分学生已经有了一定的英语学习基础,对于一些语法能够理解并应用。本教材采用了交际性话题探究和功能任务型学习的编写模式，通过这个单元的学习，让学生学会使用被动语态展开探究学习，并在教学过程中进行听、说、读、写的各种任务型学习。
四．教学过程
StepⅠ: Leading in (2 mins )
T：Do you like drinks？
What kind of drink do you like？
S1: I like orange juice.
S2: I like cola.
S3:……
T: I like tea. Do you like tea? Do you know the history of tea?
Today we will learn how the tea was invented?
（设计意图：通过回答问题的形式，引出本课的话题，激发学生的学习兴趣。）
Step Ⅱ: Teaching procedures
Learning aims (1 min)
Learn new words.(4 mins)
10 words: accidental, ruler，boil，remain，smell，saint，national，trade, popularity, doubt
(5 mins)T：Do you want to know something about tea？ When was it invented？ Who was it invented by？ How was it invented？ Please read the passage quickly and match each paragraph with its main idea.
Paragraph 1 Lu Yu and his book Cha Jing
Paragraph 2 How tea was spread to other countries
Paragraph 3 How tea was invented by accident
（设计意图：通过一系列问题的提出激发学生的阅读欲望，让学生快速阅读文章后找出每一段的主要意思，了解文章大意引导学生展开任务型阅读活动。）
4.Read the first paragraph again and try to answer the questions. Please read as carefully as you can this time.(4 mins)
（1）When was tea first drunk？
（2）Who invented tea？
（3）How was tea invented？
（设计意图：细读：通过带着问题阅读学生能掌握第一段的基本意思，这种阅读形式能让学生掌握阅读的方法和技巧，提高阅读能力。）
5.Now you know tea was invented by old Chinese by accident. Do you remember all the information? Now please complete the mind-map.(3 mins)