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When was it invented 教学 目标知识与技能：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。过程与方法：Independent preview and cooperative learning.情感态度价值观: 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。 教学方法 采用竞赛、小组合作等多种活动方式开展教学，注重因材施教。 学习方法 交际策略：学会与他人合作交流，并能把语言材料用到真实的生活情景中去。 教学准备Textbook, PPT教 学 过 程设计意图Step 1 GreetingsGreet the students as usual.Step 2 Revision1. Review the expressions and sentences in Section B. 2. Check the homework. Let students introduce the history of basketball. Step 3 Lead in 1. Ask students which invention they like best. Students think about their favorite inventions. 2. Let some students talk about their favorite inventions. Step 4 Thinking 1. Ask students what things they dont like to do. e.g. Problem: quickly taking notes in class. 2. Discuss in groups 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. Students discussing the problems and try to make their own notes. 4. Let some students read their notes to the class. Step 5 Writing Work on 3b 1. Tell students to write a description of their new invention. 2. The following sentence structures may help you. 常用句型：1)I think is a very useful invention. 我认为是一项很有用的发明。2) was invented by 是由(某人)发明的 3) was invented in 是在（某时间）发明的 4) It was used for 它被用来 5) is made of 是由(材料)制成的 Step 6 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 if the forms of the words are correct. 4. Let some students read their answers. Correct the mistakes. Work on Self Check 2 1. Tell students 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. Students work by themselves and try to rewrite the sentences. 4. Check the answers 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: _.Step 7 Revision If time is enough, let the students do the excercises on the workbook. Step 8 HomeworkSum up what they have learned in this unit.Make students be interested in and get involved in the this class and revise what have learned in the last class.By practicing writing, students speaking and writing abilities can be improved.板书设计Unit 6 When was it invented?一般过去时的被动语态：be+动词的过去分词Writing Instructions:1)I think is a very useful invention. 我认为是一项很有用的发明。2) was invented by 是由(某人)发明的 3) was invented in 是在（某时间）发明的 4) It was used for 它被用来 5) is made of 是由(材料)制成的 教后反思
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