Unit6 When was it invented？ SectionB 3a-Self Check 课件2025-2026学年人教版（2012）英语九年级全册

人教版（2012）九年级英语全册 Unit6 When was it invented？ SectionB 3a-Self Check Revision 1.by mistake　错误地;无意中 2.salty enough　足够咸 3.make sb. happy/cheer sb. up　使某人高兴 4.in the end　最后 5.more than　多于;超过 6.at the Olympics　在奥运会上 7.see sb. doing sth.　看见某人正在做某事 8.divide…into…　把……分开 9.at the same time　与此同时 10.stop…from doing sth.　阻止……做某事 11.dream of doing…　梦想做…… 12.not only…but also…　不但……而且…… 13.the number of…　……的数量 14.decide on　决定;选定 15.look up to　钦佩;仰慕 16.encourage sb. to do sth.　鼓励某人做某事 17.achieve one’s dream　实现某人的梦想 18.in history　在历史上 19.come up with　想出;提出 20.work together　协力合作 Have you ever had any difficulties in your daily life? Can you invent something new to solve those difficulties? It’s very hard for me to get up early. I am not able to take notes quickly in class. I’m worried about my homework. Pre-writing Think of something that you do not like to do. Then think of an invention that could help you. Make notes. ·Problem: __________________________ ·New invention: _____________________ ·What it is used for: ___________________ a special pen quickly taking notes in class taking notes in class Can you think about more details about this pen? What is it made of? What special thing does it have? What does it look like? How can it help you? computer shoes with special heels Lead in What inventions have we learned ? car television telephone zipper tea shoes with lights hot ice cream scoop potato chips basketball Revision How to introduce them ? car television telephone computer When was it invented? Who was it invented by? It was invented in... It was invented by... Pre-writing ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ This special pen was invented by Liu Jie. It has three colors and is used for ... Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class. How to introduce an invention? Structure 如何介绍某项发明 Para 1 引出话题 ... important in our daily life. Para 2 介绍发明 时间：It was invented in ... 材料：It’s made of.... 外形：... is/was small/huge/light ... 用途：... is/was used for/to ... Para 3 谈谈感受 I think/hope it ... Revision shoes with lights shoes with special heels hot ice-cream scoop Why is it /are they invented? What is it/are they used for? They are used for changing the style of the heels. You can raise the heels if you are going to a party or lower them if you are just going out for shopping. They are used for seeing in the dark when you get up at night. I always hit my toe against something on the way to the bathroom at night. It is used for serving really cold ice-cream. It runs on electricity and becomes hot. Because sometimes the ice-cream... Pre-writing Beginning Sb.al always have difficulty in doing sth., so he invented this. Body It is made of… It looks like… It has… Not only can it help you…, but also it can help you… End Nowadays, it has become so popular in the world and a lot of people like to used it. 篇章布局 谋篇布局 综述伟大的发明的共性 具体介绍发明 总结它对人们生活的影响 Besides the above, there are … Thanks to …, ours lives have been greatly improved. I think the great invention is … it was invented … ago and it was made of … It is used to … I think it’s really such a … It has not only … but also … There have been many great inventions that have changed … 11 积累成句 daily lives日常生活 be made of/from 由……制成 by accident 偶然；意外地 be used to/for 被用来…… at that time 在那时 without doubt 毫无疑问；的确 not only … but also … 不但……而且…… thanks to 由于；多亏 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 ... Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class. How to introduce an invention? 开头句： Among all the modern inventions, I think … is the most important one. I think … is such a great invention. In my opinion, … is one of the greatest inventions. 中间句： It was invented … ago. It was made of/from … It was used to/for … This invention can not only … but also … This invention made it … for sb. to do sth. Structure 如何介绍某项发明 引出话题 ... important in our daily life. 介绍发明 时间：... was invented in ... 外形：... is/was small/huge/light ... 用途：... is/was used for/to ... 畅想未来/总结全文 I think/hope it ... 科技节要到了，学校举办主题为 “The Greatest Invention”的英语演讲比赛，请你写一篇不少于80词的演讲稿。 必须包括以下要点： 1. Introduce the invention 2. What's it used for? 3. Why do you like it? It’s time to write. 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, doubt, mention, website, all of sudden Self Check invent all of a sudden doubt websites mention 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 ... 结尾句： Thanks to …, our lives have been greatly improved. Without doubt I like … because … … play(s) an important part in our daily lives. 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). When was the personal computer invented? Five eggs were used to make this big cake. 2. Rewrite these sentences using the passive voice. We were asked not to run in the hallway (by them). The video was taken back to the store (by someone). Invention: _________________________ When: _________________________ Who: _________________________ Purpose: _________________________ in 2013 umbrella with a light Li Meng 3. Find out information about an invention you would like to know more about and write sentences below. seeing in the rain in the dark It was invented in 2013. It was invented by LiMeng. It is used for seeing in the rain in the dark . It is used to see in the rain in the dark . 经典名句： Labor creates the world. 劳动创造了世界。 One of the greatest human qualities is its creativity. 人类最伟大的品质之一便是其创造性。 Play a game 6位同学扮演“推销商”上台向同学们“推销”自己的发明，台下的每位同学都有一张选择票，得票最多的“推销商”获胜。 （注意：在“推销”发明时需全程使用英语。） 谁的发明最畅销？ Thank You! 26 $