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_______________3aThink of something that you do not like to do. Then think of an invention that could help you. Make notes. a special penquickly taking notes in classtaking notes in classThis 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. 3b常用句型: 1. I think … is a very useful invention. 我 認(rèn)為 …… 是一 項(xiàng) 很有用的 發(fā) 明。2. … was invented by … …… 是由 …… ( 某人 )發(fā) 明的3. … was invented in … …… 是在 …… (某 時(shí)間 )發(fā) 明的 4. It was used for … 它被用來 …… 5. … is made of ……… 是由 ……( 材料 )制成的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 2022. 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. 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. It’s hard to tell who came up with the idea first. invent, doubt, mention, nearly, website, all of sud