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人教版九年级英语Unit6 When was it invented?
写作主题：Describe the inventions
一，话题分析：
本单元的话题是“描述发明物”，属于说明文的范畴，是说明文里的事物类说明文。重点考察被动语
态用法。围绕这一话题介绍一些发明物的材质，产地，用途，甚至制作过程，以及对于自己的发明物的评
价及感受。重点考查学生以下能力：
1. 掌握并熟练使用被动语态（一般现在时和一般过去时的被动语态）；
2. 能熟练使用事物类说明文；
3. 掌握说明文的写作顺序；
4. 能够展开合理的想象，激发动手和创新能力。
二，写作步骤：
1.总分总结构。短文通常分为三个部分：
总------第一部分：开篇点题，点出要介绍自己的发明物。
分-------第二部分：详细描述该发明的颜色、材质、产地、用途等。
总——第三部分：表达自己的感受或者有什么期待及改进计划等。
2.人称：第一、三人称。
3.时态：一般现在时、一般将来时、一般过去时。
4.语态：被动语态。
三，词汇积累：
1. favorite最爱的（东西）
2. invent发明/invention发明物
3. wood/gold/silver/paper/silk/glass材质
4. be made of/from/in/to/for用......做成的、产地、用途......、用来做......
5. style类型
6. a model plane模型飞机
7. help...think of a/an...帮助想起......
8. in our daily lives在我们的日常生活中
9. widely广泛地
10. for example比如11. as far as I know据我所知
12. special特殊的、特别的
13. introduce 介绍
14. describe描述
15. all parts of the world世界各地
16. the best materials最好的材质
17. special forms 特殊的形式
18. by mistake/accident偶然
19. improvement改善、改进
20. environmentally friendly环保的
21. popularity普及
22. electricity电
23. turn into 转变成
24. solar power太阳能
四，句型积累：
1. My favorite ...is...我最爱的......是.....
2. It’s made of silver.....它是银质的......
3. It is used for....它是用来.....
4. My invention is a/an....我的发明是一个.......
5. It’s with....它带有......
6. Although it’s small,it’s very useful.尽管它很小，却很有用。
7. It can be used for...它可以用作.....
8. It’s environmentally friendly because it is driven by solar power.它用太阳能来驱动，所以很环保。
9. It is made by special materials.它是用特殊材料做成的。
10. It will be popular with people in daily lives.它会在日常生活中广受欢迎。
11. It can bring me a lot of pleasure.它给我带来很多乐趣。
12. How interesting it is ！它多么有趣！
13. I will improve it one day and make it better.我会继续改进它并且使它更好。
五，写作训练一
假如你发明的“飞行单车”在学校的科技节中获奖，你被推荐参加一个国际青少年科技展览会。请用英语
介绍你的发明，内容包括：1. 外观：两个轮子、两支翅膀 2.用途：行驶于地面和空中、可拍照、能对话 3.特点：速度快、使用太
阳能、环保 4.改进计划（1-2点）
参考词汇：wheel 轮子，solar power太阳能 词数90词左右。
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六，写作训练二 在英语俱乐部的活动中，英语老师让分组设计一项实用的发明，请你根据提示要点，代
表你的小组介绍一下你们的发明。
要点：1.What’s it and when was it invented? 2.What does it look like? 3.What’s it used for?词数90词左
右。
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七，写作训练三 发明改变了世界，长大后你想当一名发明家吗？作为一名中学生，你应该怎样做？请
根据以下提示，以“How to become an inventor”为题写一篇90词左右的英语短文。
提示：1.努力学习是基础。2.兴趣是最好的老师。3.需要创新（creativity)。4.持之以恒，永不放弃。
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范文赏析：
训练一：
My invention is a flying bike.It’s a special bike with two wheels and two wings. The flying bike can
drive both ground and in the air,and it can be used to take photos and people can talk with it as well.
As a very special bike,it is fast and environmentally friendly because it is driven by solar power.
This is my invention-flying bike.It’s made by myself in my free time.If it is made real,I will have
two improvements.I will use the electricity instead of the solar power. I will also make the wheels as
solid as possible.
Thank you very much.
训练二：
Dear classmates,
I’d like to introduce our new invention to you.
It’s a special pen.It was invented in 2020 and it’s made of steel.It’s as heavy as a normal pen,but it’s a
little longer.There are three buttons on the pen.I think it’s useful and convenient.First,it can be used as a
pencil,a pen or an eraser. Second,it will let you know if you are sitting correctly by making a sound.It
won’t stop making the sound until you sit correctly.Isn’t it interesting?
That’s all. Thanks for listening.
训练三： How to become an inventor
Many people want to be an inventor.Would you like to be an inventor?If so,as a student,you need to
do these things.Study hard. Knowledge is the base.If you don’t master any knowledge,it’s possible to invent anything.
Interest is the best teacher.When you are interested in something,you will do it well. So one should have
interest in what you are studying.Creativity is very necessary.You need to be creative to come up with
new ideas.
Finally,you should keep on studying hard and never give up. Don’t be afraid of failure. Then you are
on the way to success.
