Unit 9 When was it invented ? 唐松霞
发布时间：2012-01-05 09:09:48 来源：
知识目标：1.掌握重要的词组和句子；被动语态的用法
2.能用英语说土豆片的发明历史，并能用自己的语言讲一个其他发明的小故事。
3.听力训练。
能力目标：1.获得口语交际能力和在听的过程中获得有效信息的能力。
2.学会小组式学习和交往式学习。
德育目标：让英语教学走进学生的生活，激发他们学习英语的兴趣。
T: Good morning, class.
Ss: Good morning , Miss Tang .
T: Sit down , please.
Ss: Thank you.
T: Today we’re going to learn Unit 9 .Let’s talk about what your favourite food is. I like the food that’s hot . What kind of food do you like?
S1: I like tasty food.
S2: I like the food that can help me keep healthy .
S3: I like the food that’s sour .
S4: I like salty food .
T : Besides the hot food ,I also like the food that’s crispy and sour food.
Do you know what’re the meanings of sour ,crispy and salty ?
Read after me .
Ss: sour crispy ,tasty , salty .
The students learn and read the phrases together.
（这部分是短语学习部分，通过结合实际让学生谈论自己的食物喜好，同时比较形象直观地学习关于食品口味的短语，学生积极性高，掌握的效果也很好，同时也为本节课打好了有力的基础。）
T: Let’s stop here. Let’s say something about the potato chips . you all like them . But when was it invented? how was it inventd ? who was it invented by ? Do you know /
Ss discuss in groups . then answer .
（这一部分在原有基础之上，导入本课重点句型，既是对上一话题的延伸，同时又为下一步的听力做好了准备。）
T: Please work in groups,and read the sentences in 2a
Ss do it in groups and write the sentences on the Bb.
T: OK. Let’s read the sentences together.
The students read the sentences on the Bb together.
T: OK. Let’s begin our listening. 2a and 2b .（这一步在打好基础的前提下，进行课本第一大块内容，即大体了解土豆片的发明历史。）
T: Now let's do some listening practice. 2a and 2b.Listen and circle T and F , then listen again and complete the sentences
Ss listen and finish the tasks.
（这一步同学们通过听力训练进一步强化考试规则语言的应用。）
T: Now let’s do some writing practice.Write a short passage about the history of the patato chips . using the phrases on Bb.
The students finish the passage in 5 minutes.
（这一步是重要词句和被动语态的运用）
T:Please work in pairs and check your passages.
Ss work in pairs.
T: Today we have learned the history about the potato chips and done some listening and wr-iting practice. I hope if you work hard and invent more good things with your mind when you grow up .Now class is over. Goodbye ,class.
Ss: Goodbye,Miss Tang
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