人教九年级英语 Unit 6,When was it invented?,Section B 3a-Self Check,Inventions are everywhere in our life,Inventions are everywhere in our life,Inventions are everywhere in our life,3a. Think of something that you do not like to do. Then think of an invention that could help you. Make notes.,Problem,quickly taking notes in class,New invention,a special pen,What it is used for,.,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,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.,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.,invent,nearly,all of a sudden,doubted,website,mention,语法重点一,So some people doubted whether the inventor came up with the idea him -self or herself. (1)该句是包含宾语从句的主从复合句。这 样的结构要注意主句如果是过去时态，从 句一般要用相应的过去时态（客观事实除 外）。 如：Last class our physics teacher said that the moon goes around the sun. He said he would go back home next month.,语法重点一,(2) come up with 想出注意类似词组catch up with 赶上keep up with 紧跟。 I want to catch up with him in English study. Dont fall behind ,keep up with the others.,2.Rewrite these sentences using the passive voice.,1. Someone stole my watch. _ 2. They used five eggs to make this big cake. _ 3. When did they invent the personal computer? _ 4. They asked us not to run in the hallway. _ 5. Someone took the video back to the store. _,My watch was stolen by someone .,Five eggs were used to make this big cake.,When was the personal computer invented?,We were asked not to run in the hallway.,The video was taken back to the store .,3. Find out information about an invention you would like to know more about and write sentences below.,语法复习,一般过去时的被动语态,一、一般过去时被动语态的用法一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作。其结构为：主语(动作承受者) + was / were + 过去分词(+ by + 动作发出者)构成,其否定形式was/were后加not。 如：I was taught by Miss Zhao last year. Those letters were written by a famous writer.,【注意】被动语态还可用于：强调动作的承受者，而不强调动作的执行者。 如：The window was broken by Mike.This book was written by him. 二、主动语态变被动语态的方法 (1)把主动语态的宾语变为被动语态的主语。 (2)把谓语变成被动结构(be过去分词) (根据被动语态句子里的主语的人称和数，以及原来主动语态句子中动词的时态来决定be的形式)。,语法复习,(3)把主动语态中的主语放在介词by之后作宾语,将主格改为宾格。 All the people (主语：动作的发出者)laughed at him（宾语：动作的承受者）. He（主语：动作的发出者）was laughed at by all the people.（宾语：动作的承受者）,小结训练：,(2013河北）1. Annie _ to the party. She had a wonderful time with us. A. invites B. is invited C. was invited D. has invited (2013玉林)2. Many houses _ in the earthquake of April 20, 2013 in Yaan. A. is destroyed B. are destroyed C was destroyed D. were destroyed (2013泰州)3. “Frog”， Mo Yans latest novel, please! Sorry, it _ just now. But it will come out again soon.A. sold out B. is sold out C. has sold out D. was sold out,C,D,D,小结训练：,(2013雅安) 4. 一Who designed this game? 一It _ by Tom in 1999.A. is designed B. designs C. was designed D. designed (2013临沂) 5. Do you know Earth Day? Sure. It _ in 1970 to tell us to protect our planet.A. sets up B. set up C. is set up D. was set up (2013 衢州) 6. Lots of food and water _ Yaan, Sichuan Province immediately after the earthquake happened. A. were sent B. are sent C. send D. sent,C,D,A,1. 完成课时作业。 2. 熟读并背诵Self Check 1。,谢谢,