Unit6 SectionB（3a-SelfCheck）课件2024-2025学年人教版九年级英语全册

Unit 6 When was it invented? Section B (3a-Self Check） 初中英语人教版九年级全一册 1 在语境中理解、识记并运用本单元单词、短语，独立完成相关习题。 能根据写作要求，收集、准备素材，独立完成一篇介绍发明的文章。 3. 能运用本单元的词汇、句式及被动语态谈论发明，能够表达 与发明有关的观点和看法。 学习目标 In our daily life, there are many inventions that make our life more convenient. Do you know what these inventions are used for? Do you know other small inventions with special designs? Do you know what these inventions are used for? Have you ever made any designs to make life better? An invention may be a new product or a new way of doing things. Inventions come about in many ways. Most of the time, inventions happen because someone works to solve a problem. Sometimes inventions are the result of accidents. Look at your schoolbags. You have pencils, pens, crayons, rulers and some books. None of these things was planted in fields. They were made in factories and invented by someone. Inventing is interesting and exciting and everyone can be an inventor. Do you want to be an inventor? What is an invention? What is an invention? List some inventions that you know and their inventors. Do you think you can be an inventor? Why? Read the passage and answer the questions. Talk about your opinions on inventions. Think of something that you do not like to do. Then think of an invention that could help you. Make notes. 3a Problem: ________________________ New invention: ____________________ What it is used for: ______________________ a special pen quickly taking notes in class taking notes quickly in class What do you want to invent to solve your problems? Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class. 3a This special pen was invented by Liu Jie. It has three colors and is used for …. Think of an invention that you want to introduce to your class. Then think about the advantages of it. 体裁 话题 时态 人称 段落布局 审题 说明文 新发明 一般过去时一般将来时 第一、二、三人称 开头：介绍发明的时间和发明人 主体：介绍发明用处和解决的问题 结尾：介绍期望 I think … is a very useful invention. 我认为……是一项很有用的发明。 … was invented by … ……是由…… (某人)发明的 … was invented in … ……是在…… (某时间)发明的 It was used for … 它被用来…… … is made of … ……是由……(材料)制成的 Useful sentences Write by yourselves 独立创作 Judge in groups 组内互评 Show time 展示交流 While-Writing Complete your writing in 10 minutes. A New Invention _____________________ _____________________ _____________________ _____________________ _____________________ _____________________ One Possible Version This special pen was invented by Liu Jie. It has three colors and is used for taking notes quickly in class. It was invented in 2014. It is made of plastic and steel. It can remember what the teacher said. It can also help write down the main points. I think it’s a useful invention. Do you want one? ASSESSMENT（评价标准） Structure （结构）2分 Is the article divided into several parts? Content （内容）5分 Are all the details stated? If not, add the missing details. Language （语言）6分 Any mistakes (spelling or grammar)? If yes, correct them. Any linking words? If yes, circle them. Any good vocabulary or sentences? If yes, underline them. Handwriting 2分 Is it clean and tidy? Talk about your passages according to the assessments on the right. 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 nearly the same. It’s 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 else’s idea to create his or her invention. That is why books or ________ usually ________ more than one inventor when giving information about inventions. invent invent doubt mention website all of a sudden all of a sudden doubt websites mention 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. When was the personal computer invented? Five eggs were used to make this big cake. The video was taken back to the store (by someone). We were asked not to run in the hallway (by them). Invention: _________________________ When: _________________________ Who: _________________________ Purpose: _________________________ 3. Find out information about an invention you would like to know more about and write sentences below. Write a passage about the invention of your favorite product, introduce the time, place and person who invented it and why you like it. Homework $$