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1、 Unit 6 When was it invented？教案Section B 2 (3a-Self Check)一、教学目标： 1. 语言知识目标：1) 复习一般过去时态被动语态的用法。 2) 能够用英语讲述自己所熟悉的某一发明的简单过程。3) 能用就本单元所学习的寓言故事等语言材料，进行完型填空。 并用英语介 绍某一发明的简要过程。2. 情感态度价值观目标：了解世界上一些对人类有着重大意义的发明的相关信息，开阔学生的眼界，养成勤于思考，善于发现的好习惯，培养学生的创造精神。 二、教学重难点1. 教学重点：1）用英语介绍某一发明的简要过程。 2）掌握本单元所学的词汇、句型及语法知识，并能进
2、行综合练习运用。3）完成Self check部分的练习试题。2. 教学难点：用英语介绍某一发明的简要过程。 三、教学过程. Revision1. Review the expressions and sentences in Section B 1. 2. Check the homework. Let Ss introduce the history of basketball. . Lead in 1. Ask Ss which invention they like best.Ss think about their favorite inventions. 2. Let some Ss
3、 talk about their favorite inventions. . Thinking 1. Ask Ss what things they dont like to do. e.g. Problem: quickly taking notes in class. 2. Discuss in group and think of an invention that could help you. e.g. New invention: a special pen What it is used for： taking notes quickly in class 3. Ss dis
4、cussing the problems and try to make their own notes. 4. Let some Ss read their notes to the class. . Writing Work on 3b: 1. Tell Ss to write a description of your new invention. 2. The following sentence structure may help you. 常用句型： I think is a very useful invention. 我认为是一项很有用的发明。 was invented by
5、 是由(某人)发明的 was invented in 是在（某时间）发明的 It was used for 它被用来 is made of 是由(材料)制成的 . Self Check Work on Self Check 1: 1. Read the words in the box and make sure they know the meaning of each word. 2. Read the passage and try to fill in the blanks with the proper word. 3. Read the passage again. Check i
6、f the forms of the words are correct. 3. Let some Ss read their answers. Correct the mistakes. Work on Self Check 2 1. Tell Ss to rewrite the sentences using the passive voice. 2. 方法指导：复习一般过去时态的被动语态的句子结构。复习将主动语态句子变为被动语态句子的过程。3. Ss work by themselves and try to rewrite the sentences. 4. Check the ans
7、wers with the class. Work on Self Check 3Find out information about an invention you would like to know more about and write sentences below. Invention: _When: _Who: _Purpose: _Exercise: If time is enough, do some more exercises on big screen. 一、用所给单词的适当形式填空 1. During the afternoon, there was a _ (s
8、uddenly) heavy fall of snow. 2. I think the telephone _ (invent) before the car. 3. The _ (Canada) song Alouette(百灵鸟) is a fun song about a bird. 4. They _ (invite) to take part in the May Day celebrations in Beijing. 5. The _ (popular) of private cars is changing the peoples life style. 6. When the
9、 bill _ (bring) to him, he was such surprised. 7. They gave their lives for their country and were honored as _ (hero). 8. We _ (divide) into eight groups by our teacher last week. Homework 1. 试着向你的朋友用英语讲述篮球的发展过程。 2. 用下列词汇造句子。 look up to, by mistake, daily activities, It is said, all of a sudden, fall into, at the Olympics