2018届九年级英语全册Unit6Whenwasitinvented第6课时教案.docx

Unit 6 When was it invented? Section B （3aSelf Check）一、【教材分析】教学目标知识目标1. 复习常用词汇及表达：be used for, think of, have a point, become popular; shoes with special heels, shoes with lights, such a great invention, in our daily lives, at that time; by accident; take place; without doubt; a Chinese ruler called；fall into; some time; produce a nice smell; one of the worlds favorite drinks; the saint of tea; less than; by mistake; thin enough; salty enough; make the customer happy; in the end; potato chips; divide into; not onlybut also; look up to; stopfrom; become popular in China; the number of; encourage sb. to do sth; achieve ones dreams2.复习常用句型表达：（1）When was the telephone invented? I think it was invented in 1876.（2）What are they used for? Theyre used for.（3）Did you know that tea, the most popular drink in the world, was invented by accident?（4）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.（5）Some leaves from a tea plant fell into the water and remained there for some time.（6）It also discusses where the finest tea leaves were produced and what kinds of water were used.（7）The tea trade from China to Western countries took place in the 19th century. （8）The telephone was invented by Alexander Graham in 1876.（9）Potato chips were invented by mistake.（10）The customer said they were not salty enough.（11）George wanted to make the customer happy.（12）The customer was happy in the end.（13）Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.（14）It is over 100 years old and is played by more than 100 million people in over 200 countries.（15）Basketball was invented by a Canadian doctor named James Naismith, who was born in 1863.（16） Dr. Naismith divided the men in his class into two teams and taught them to play his new game.能力目标熟练运用本单元句型进行会话和写作。情感目标养成热爱科学、勇于探索以及不畏艰难的精神。教学重点谈论不同的发明，并尝试发明新事物。教学难点运用本单元句型进行会话和写作。教学方法情景教学法；任务型教学法。二、【教学流程】 环节师生活动二次备课I. 复习热身1、检查单词复习用所给单词的适当形式填空。（1）Ten eggs _ (use) to make the big cake by my mother.（2）The boys _ (ask) not to shout in the hallway.（3）When did they invent the _ (person) computer?（4）Thomas Edison was a great _ (invent) in history.（5）Some inventions can also lead to other inventions all of a _ (suddenly).答案：（1）were used（2）were asked（3）personal（4）inventor（5）sudden 2、自由交谈Talk about different inventions and make up the conversations.When was/wereinvented?It was/were invented . 感知体验感知1. 用多媒体展示各种不同的新发明，启发学生思考日常生活中不喜欢的事物，引导学生尝试探索新的发明。Problem: quickly taking notes in class.New invention: a special pen.What it is used for: taking notes for me. It can take notes automatically. 体验1.分组讨论其他新发明。.强化巩固1. 处理课本内容Self check 1部分:Complete the passage with the correct forms of words in the box.invent doubt mention website all of a sudden It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may _things which are nearly the same. Its hard to tell who came up with the idea first. Some inventions can also lead to other inventions_. So some people _whether the inventor came up with the idea himself or herself. They think that the inventor used someone elses idea to create his or her invention. That is why books or _usually_more than one inventor when giving information about inventions.答案:invent; all of a sudden; doubted; websites; mentioned2. 处理课本内容Self check2部分:Rewrite these sentences using the passive voice.1. Someone stole my watch. My watch was stolen by someone.2. They used five eggs to make this big cake. Five eggs were used to make this big cake.3. When did they invent the personal computer? When was the personal computer invented?4. They asked us not to run in the hallway. We were asked not to run in the hallway.5. Someone took the video back to the store.The video was taken back to the store by someone. . 实践应用写一篇关于发明的文章。例如:This special pen was invented by Liu Jie. It has three colors and is used for taking notes quickly. It is very useful if you have a lot to write down. The pen comes with a microchip that can store a list of common words that you will use. You can program the words you will use often into the microchips memory, then assign a short form to each word. When you are writing, you just need to write the short forms with the pen, press a button on the pen and all the short forms will change into the actual words. The microchip can contain up to 50 words and you can make changes to the list of words whenever you need to.总结反馈1. 复习常用词汇：be used for, think of, have a point, become popular; shoes with special heels, shoes with lights, such a great invention, in our daily lives, at that time; by accident; take place; without doubt; a Chinese ruler called；fall into; some time; produce a nice smell; one of the worlds favorite drinks; the saint of tea; less than; by mistake; thin enough; salty enough; make the customer happy; in the end; potato chips; divide into; not onlybut also; look up to; stopfrom; become popular in China; the number of; encourage sb. to do sth; achieve ones dreams.2.复习常用句型表达：（1）When was the telephone invented? I think it was invented in 1876.（2）What are they used for? Theyre used for.（3）Did you know that tea, the most popular drink in the world, was invented by accident?（4）It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.（5）Some leaves from a tea plant fell into the water and remained there for some time.（6）It also discusses where the finest tea leaves were produced and what kinds of water were used.（7）The tea trade from China to Western countries took place in the 19th century. （8）The telephone was invented by Alexander Graham in 1876.（9）Potato chips were invented by mistake.（10）The customer said they were not salty enough.（11）George wanted to make the customer happy.（12）The customer was happy in the end.（13）Basketball is a much-loved and active sport that is enjoyed by many f