七年级英语下册 Unit 11 Electricity教案 牛津上海版-牛津上海版初中七年级下册英语教案.doc

Unit 11 Electricity教学目标 1. 培养学生听说读写语言的综合运用。2.安全用电，节约用电2学情分析 生活中的自然元素之一，是学生们熟知的日常话题。学生对此不陌生，言之有物。教学内容比较简单，不存在分化问题。3重点难点 必会的单词短语 be connected to , tidy up ,a packet of , be careful with制定安全用火规则，家用电器的日常使用注意事项4教学过程4.14.1.1教学目标 Train the Ss better four abilities.Save the electricity.Be careful with electricity.4.1.2学时重点评论（0）必会的单词短语4.1.3学时难点评论（0）家用电器的日常使用注意事项4.1.4教学活动活动1【讲授】Electricity Unit 3 A dangerous servant（学案）一、词汇1. dangerous adj. 危险的 danger n. 习惯用语：in danger 处于危险中2. servant n. 佣人、仆人 serve v. 接待，服务 service n. 服务3. electricity n. 电 electric adj. 电的；用电的 electrical adj. 用电的；与电有关的4. but sth. in packets 成包买 习惯用语：buy sth.for= spend on sth.5. flow(into, through, etc.sth.) v. 流；流动6. explanation n. 解释；说明 explain v. 解释7. invisible adj. 看不见的，不可见的 反义词：visible adj. 看得见的 vision n. 视力；视野 have good / normal vision 视力好 / 正常8. energy n. 能量；能 heat energy 热能 light energy光能9. connect v. （使）连接；联结 习惯用语：1 connect A to / with B 2 connect A and B10. bury(buried, buried)v. 把（某物）掩藏在地下 习惯用语：bury ones nose in a book 埋头看书11. power n. （1）电力供应 a power station 发电厂；发电站 （2）能力 powerless adj. 无能为力的 be powerless to do sth. powerful adj. 强有力的 powerful weapons 强大的武器12. contain v. 包含；含有；容纳 container n. 容器13. chemical （1）n. 化学物质 （2）adj. 化学chemical changes 化学变化 chemistry n. 化学 chemist n. 化学家；药剂师14. produce v. 生产product n. 产品 meat products 肉制品 production n. 生产；产量二、句式1. Although electricity is much more dangerous than water, 尽管电比水要危险得多，（1）although conj. = though 虽然；尽管（2）much more dangerous than much用来修饰比较级 可以修饰比较级的词much, a lot, far, 得多 a little, a bit, 一点儿 even 甚至， still 仍然2. Can you tell me what it looks like? 你能告诉我它看起来像什么吗？3. We call the thick wires cables. 我们把粗电线叫做电缆。4. We can change it into forms of energy that we can see, hear or feel.That we can see, hear or feel 是定语从句，修饰energy。that 为关系代词，在定语从句中做宾语。三、语法May I / we ？这一类疑问句的肯定回答为 Yes, please. 或 Certainly; 否定回答为 Please dont. 或 No, you mustnt.随堂反馈 Choose the best answers:( )1. John, look at the time. _ you play the piano at such a late hour A. Must B. Can C. May D. Need( )2. There _be any difficulty about passing the road test since you have practiced a lot in the driving school.A. mustnt B. must C. shouldnt D. neednt( )3. Excuse me. _ you please pass me that cup? A. Do B. Should C. Would D. Must( )4. We forgot to bring our tickets, but please let us enter, _? A. do you B. can we C. will you D. shall we( )5. Black holes _ not be seen directly. A. can B should C. must D. need( )6. Must he come to sign this paper himself?Yes, he _.A. need B. must C. may D. will( )7. The World Wide Web is sometimes jokingly called the World Wide Wait because it _ be very slow. A. should B. must C. will D. can( )8. Why dont you ask Mike to go with us? Thanks, _. A. I wi B. I wont C.I can D. I may( )9. I think Ill give Bob a ring. You _. You havent been in touch with him for ages. A. will B. may C. can D. should( )10. Could I have a word with you, mum? Oh dear, if you _. A. can B. must C. may D. should( )11. The poor man needs our help, _ he? A. need B. neednt C. does D. doesnt( )12. The winner of the race is a tall and thin boy with thick glasses.Then it _ be my friend Mike. He is not good at running. A. mustnt B. cant C. might D. shouldII.Rewrite the sentences as required:1. My father bought me a new bicycle. （改为被动语态）A new bicycle _ _ for me by my father.2. Everything goes well.（改为反意疑问句） Everything goes well, _ _?3. They are running fast. （改为感叹句） _ _ they are running!4. She became ill because it was too cold. （改为简单句） She became ill _ _ the cold weather.5. He asked the girl:Why do you live in the country?（改为间接引语） He asked the girl _ she _ in the country.III. Complete the sentences with the given words in their proper forms:1I could not find my little brother because he was _ in the big crowd. (vision)2 He is good at all the subject except _. (chemical)3. It is common knowledge that tigers are _ to people. (danger)4. Phelps won eight gold medals at the Beijing Olympics, so he is _ known in the world. (wide)5. You can find the books you want to borrow easily with the help of the _. (library)IV. Complete the sentences with the given words in their proper forms:1.They _ (be) friends since they were boys.2. Tom often _ (go) to the school library to borrow books.3. By the end of last term, we _ (learn) more than one thousand English words.4. Please _ (not make) any noise. We are having a meeting.活动2【活动】Electricity 二、句式1. Although electricity is much more dangerous than water, 尽管电比水要危险得多，（1）although conj. = though 虽然；尽管（2）much more dangerous than much用来修饰比较级 可以修饰比较级的词much, a lot, far, 得多 a little, a bit, 一点儿 even 甚至， still 仍然2. Can you tell me what it looks like? 你能告诉我它看起来像什么吗？3. We call the thick wires cables. 我们把粗电线叫做电缆。4. We can change it into forms of energy that we can see, hear or feel.That we can see, hear or feel 是定语从句，修饰energy。that 为关系代词，在定语从句中做宾语。三、语法May I / we ？这一类疑问句的肯定回答为 Yes, please. 或 Certainly; 否定回答为 Please dont. 或 No, you mustnt.活动3【练习】Electricity 随堂反馈 Choose the best answers:( )1. John, look at the time. _ you play the piano at such a late hour A. Must B. Can C. May D. Need( )2. There _be any difficulty about passing the road test since you have practiced a lot in the driving school.A. mustnt B. must C. shouldnt D. neednt( )3. Excuse me. _ you please pass me that cup? A. Do B. Should C. Would D. Must( )4. We forgot to bring our tickets, but please let us enter, _? A. do you B. can we C. will you D. shall we( )5. Black holes _ not be seen directly. A. can B. should C. must D. need( )6. Must he come to sign this paper himself?Yes, he _.A. need B. must C. may D. will( )7. The World Wide Web is sometimes jokingly called the World Wide Wait because it _ be very slow. A. should B. must C. will D. can( )8. Why dont you ask Mike to go with us? Thanks, _. A. I wi B. I wont C.I can D. I may( )9. I think Ill give Bob a ring. You _. You havent been in touch with him for ages. A. will B. may C. can D. should( )10. Could I have a word with you, mum? Oh dear, if you _. A. can B. must C. may D. should( )11 The poor man needs our help, _ he? A. need B. neednt C. does D. doesnt( )12. The winner of the race is a tall and thin boy with thick glasses.Then it _ be my friend Mike. He is not good at running. A. mustnt B. cant C. might D. shouldII.Rewrite the sentences as required:1. My father bought me a new bicycle. （改为被动语态）A new bicycle _ _ for me by my father.2. Everything goes well.（改为反意疑问句） Everything goes well, _ _?3. They are running fast. （改为感叹句） _ _ they are running!4. She became ill because it was too cold. （改为简单句） She became ill _ _ the cold weather.5. He asked the girl:Why do you live in the country?（改为间接引语） He asked the girl _ she _ in the country.III. Complete the sentences with the given words in their proper forms:1I could not find my little brother because he was _ in the big crowd. (vision)2 He is good at all the subject except _. (chemical)3. It is common knowledge that tigers are _ to people. (danger)4. Phelps won eight gold medals at the Beijing Olympics, so he is _ known in the world. (wide)5. You can find the books you want to borrow easily with the help of the _. (library)IV. Complete the sentences with the given words in their proper forms:1.They _ (be) friends since they were boys.2. Tom often _ (go) to the school library to borrow books.3. By the end of last term, we _ (learn) more than one thousand English words.4. Please _ (not make) any noise. We are having a meeting.