Unit 6 When was it invented?The Fifth Period Grammar Focus / Self Check / WritingTeaching aims（教学目标）一、熟练掌握以下词汇：fridge, translate, lock, earthquake, sudden, biscuit, cookie, instrument二、通过学习，掌握以下句型：1. When was the zipper invented? It was invented in 1893.2. Who was it invented by? It was invented by Whitcomb Judson.3. When was tea brought to Korea? It was brought to Korea during the 6th and 7th centuries.4. What is the hot ice-cream scoop used for? Its used for serving really cold ice-cream.三、1. 通过对本单元语法的复习与巩固，学会归纳与总结。 2. 通过对写作内容和写作方法的分析，完成写作任务。四、 通过对被动语态表达的发明和创造的事物来认识人类的科技进步和培养学生的创新能力来达到情感，态度，价值观的课堂体现。 Difficulties（难点）：本单元语法的复习与巩固，学会归纳与总结。Teaching steps（教学步骤）1. Warm-up and revision（课堂热身和复习）（1）Complete the sentences.Edison invented the light bulb.The light bulb was invented by EdisonAlexander Graham Bell invented the telephone _ was invented by _.Karl Benz invented the car. _ was invented by _.（2）Watch the video and answer the questions:Do you know him?Do you know where he is from?教学设计说明：以科比为这节复习课的线索，调动学生的学习热情，事半功倍。2. Presentation（呈现新知识）Work on Grammar Focus.Read the sentences in Grammar Focus and answer Kobes questions.教学设计说明：把对句子的记忆组织成和科比的对话 ，更加生动，利于学生记忆。3. Work on 4a.Rewrite the sentences using the passive voice.Somebody stole my camera from my hotel room.Where did you take these photos?Our parents advised us not to go out alone. Different writers translated the book into different languages. 4. Work on Self check 2来源:gkstk.ComSomeone stole my watch.They used five eggs to make this big cake.When did they invent the personal computer?They asked us not to run in the hallway.Someone took the video back to the store.教学设计说明：把教学任务设计成与科比之间的互相学习 ，增加了趣味性和挑战性。5. Work on 4b.Complete the sentences with the correct forms of the verbs in the box.来源:学优高考网gkstk(1)You _ to the party last night, werent you? Why didnt you go?(2) The earthquake happened all of a sudden, but luckily the villagers _ to a safe place.(3) The door _ when we arrived, so we _ the bell .(4) The students _ not to eat or drink in class, but Ruby_ the rule when she started eating a biscuit in a science class.(5) The cookies _ by the hungry kids in less than 20 minutes, and they really _ them.来源:学优高考网6. Work on 4c.Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.The telephone _ (invent) by Alexander Graham Bell. He _ (born) in 1847. Mr. Bell_ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell _ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone _ (invent) in 1876. The first sentence that _ (say) on the phone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone _ (use) around the world.7. Work on Self Check 1.Complete the passage with the correct forms of the words in the box.It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may _ things which are _ 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. 来源:学优高考网gkstk来源:学优高考网gkstk完成学习目标一、二。8. 我们在推销一件产品的时候，通常会从哪几个方面去描述呢？ 9. Work on 3b. Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class. This special pen was invented by Liu Jie. It has three colors and is used for 10. 单元总结。教学设计说明：用种植石榴树的形式，复习本单元知识。完成学习目标 三、四。