Unit 5 Power of Ideas SectionA 单词精讲 2026-2027学年人教版九年级英语上册

该初中英语课件聚焦九年级Unit 5“Power of Ideas”Section A核心词汇，涵盖invention、camera等单词的音标、释义、短语及例句，通过“趣味课堂”结合抖音、世博会等生活场景导入，搭建从已知情境到词汇学习的支架，帮助学生建立知识关联。 其亮点在于融合语言能力与思维品质培养，通过例句、短语训练提升语言理解与表达，借助补全短文练习促进词汇综合运用，记忆口诀优化学习策略。既激发学生兴趣，又为教师提供系统资源，助力高效课堂。

Unit 5 Power of Ideas 新人教版九年级单词课件 Section A 1 单词解析 2 单词操练 3 单词练习 CONTENTS 目录 01 单词解析 n. 发明；创造；发明物 a great invention 一项伟大的发明 例句： 1. The telephone is one of the most important inventions in history. 电话是历史上最重要的发明之一。 2. Thomas Edison the light bulb. 托马斯・爱迪生发明了电灯泡。 inventor n. 发明家 /ɪnˈvenʃn/ invention the invention of… …… 的发明 v. 发明；创造；编造 /ɪnˈvent/ invent invented 趣味课堂 n.照相机；（电影）摄影机 digital camera 数码相机 例句： 1. She took a lot of beautiful photos with her new camera. 她用新相机拍了很多漂亮的照片。 2. The camera on my phone takes very clear photos. 我手机上的摄像头拍出来的照片非常清晰。 /ˈkæmərə/ camera take photos with a camera 用相机拍照 趣味课堂 n.笔记本电脑；便携式电脑 work on a laptop 用笔记本电脑工作 例句： 1. I use my laptop to do my homework and surf the internet. 我用笔记本电脑做作业和上网。 2. A laptop is easy to carry around, so it’s great for students. 笔记本电脑便于携带，所以对学生来说很方便。 /ˈlæptɒp/ laptop carry a laptop 携带笔记本电脑 高速列车；高铁 take a high-speed train 乘坐高铁 例句： 1. The high-speed train can take us from Beijing to Shanghai in just a few hours. 高铁只需几个小时就能把我们从北京带到上海。 2. Taking the high-speed train is faster and more comfortable than taking a regular train. 坐高铁比坐普通火车更快、更舒适。 high-speed train station 高铁站 high-speed train travel by high-speed train 乘高铁旅行 adj.超级的；顶好的；极好的 super fast 超快 例句： 1. The movie was super interesting, and I loved every minute of it. 这部电影超好看，我从头到尾都很喜欢。 2. She is a super student, always getting good grades. 她是个超棒的学生，总是取得好成绩。 super easy 超简单 /ˈsuːpə(r)/ super super good 超好 n. 墨镜；太阳镜 wear sunglasses 戴墨镜 例句： 1. She always wears sunglasses when she goes out on sunny days. 她晴天出门总是戴墨镜。 2. You should wear sunglasses to protect your eyes from the bright sun. 你应该戴太阳镜来保护眼睛免受强光伤害。 take off sunglasses 摘下墨镜 /ˈsʌnɡlɑːsɪz/ sunglasses a pair of sunglasses 一副太阳镜 prefix.微型的；短的；迷你的 minibus 小型巴士 例句： 1. The school uses a mini-bus to take students on short trips. 学校用一辆小型巴士带学生短途出行。 2. She bought a mini-skirt for the summer. 她为夏天买了一条迷你裙。 minibar 迷你酒吧 /ˈmɪni/ mini- minicomputer 微型计算机 pron. 它自己；它本身 主格 / 宾格：it；形容词性物主代词：its；名词性物主代词：its 例句： 1. The door opened by itself. 门自己开了。 2. The problem itself is not difficult, but it takes time to solve. 问题本身并不难，但解决起来需要时间。 3. The cat cleaned itself after eating. 猫吃完东西后自己舔了舔毛。 by itself 独自地 /ɪtˈself/ itself n. 按钮；扣子 red button 红色按钮 例句： 1. Please press the button to turn on the light. 请按按钮开灯。 2. The elevator door closed when I pressed the button. 我按了按钮，电梯门就关上了。 3. Don’t push the red button—it will set off the alarm. 别按红色按钮，会触发警报的。 /ˈbʌtn/ button press the button 按按钮 趣味课堂 许多；大量；成百上千 hundreds of 接可数名词复数 例句： 1. Hundreds of people came to the concert yesterday. 昨天成百上千的人来听音乐会。 2. There are hundreds of books in the school library. 学校图书馆里有数百本书。 two hundred 两百 /ˈhʌndrədz/ hundreds (of) hundreds of students 数百名学生 口诀： 有数字,无s; 有s,有of v. 生产；繁育；制造 produce goods 生产商品 例句： 1. The factory produces toys for children. 这家工厂生产儿童玩具。 2. Farmers produce most of the food we eat. 农民生产了我们吃的大部分食物。 product n.产品 /prəˈdjuːs/ produce produce food 生产食物 趣味课堂 n.(计算机的）文件；文件夹 computer file 电脑文件 例句： 1. I saved the document as a PDF file on my laptop. 我把文档保存成了 PDF 文件存在笔记本电脑里。 2. The teacher asked us to send our homework as a file by email. 老师让我们把作业作为文件通过邮件发送。 save a file 保存文件 /faɪl/ file open a file 打开文件 n. & adj. 塑料（的）；塑料制的 plastic bag 塑料袋 例句： 1. We should use fewer plastic bags to protect the environment. 我们应该少用塑料袋来保护环境。 2. This toy is made of hard plastic. 这个玩具是用硬塑料做的。 3. Plastic waste is a big problem for the ocean and animals. 塑料垃圾对海洋和动物来说是个大问题。 /ˈplæstɪk/ plastic plastic bottle 塑料瓶 n.打印机；印刷公司；印刷工 print from the printer 从打印机打印 例句： 1. The printer is out of ink, so I can’t print my report. 打印机没墨了，我没法打印报告。 2. The school has a printer in the library for students to use. 学校图书馆里有一台打印机供学生使用。 /ˈprɪntə(r)/ printer print v.打印；印刷 全世界；世界各地 同义：around the world /across the world 例句： 1. People all over the world speak English as a second language. 世界各地的人都把英语作为第二语言。 2. The Great Wall is famous all over the world. 长城闻名全世界。 all over the world v.认为；推断；猜想；假设 suppose that… 假设…… 例句： 1. I suppose it will rain later, so take an umbrella. 我猜等会儿会下雨，带上伞吧。 2. You are supposed to take off your shoes before entering the house. 进门前你应该脱鞋。 /səˈpəʊz/ suppose I suppose so 我想是吧 应当做（某事）或是（某物） be supposed to do/be sth. 趣味课堂 趣味课堂 n. 车轮；轮子 car wheel 车轮 例句： 1. The car stopped because one of its wheels broke. 车停了，因为一个轮子坏了。 2. The bicycle has two wheels and is easy to ride. 自行车有两个轮子，很好骑。 复数：wheels /wiːl/ wheel bicycle wheel 自行车轮 趣味课堂 adj.冻硬的；冰封的；结冰的 frozen food 冷冻食品 例句： 1. I bought some frozen vegetables to cook for dinner. 我买了些冷冻蔬菜做晚饭。 2. Her hands were frozen after playing in the snow for an hour. 她在雪地里玩了一个小时，手冻僵了。 3. The frozen food in the fridge needs to be cooked before eating. 冰箱里的冷冻食品吃之前需要加热。 freeze-froze-frozen /ˈfrəʊzn/ frozen frozen lake 冰封的湖 v. 完成；结束；使完整；adj. 完全的；彻底的；完整的 complete the work 完成工作 例句： 1. The students will complete their exams next week. 学生们下周将完成考试。 2. The project is now complete, and we can start using it. 项目现在已经完成，我们可以开始使用了。 3. The party was a complete success—everyone had a great time. 派对办得非常成功，每个人都玩得很开心。 4. She completely forgot about the meeting and didn’t come. 她 忘了开会的事，没来。 completely adv.完全地；彻底地 /kəmˈpliːt/ complete a complete success 一次完全的成功 完全 趣味课堂 趣味课堂 n. 层；表层 复数：layers 例句： 1. There is a thin layer of ice on the pond. 池塘上有一层薄冰。 2. She put on several layers of clothes to stay warm in the cold. 她穿了好几层衣服保暖御寒。 3. The cake has three layers with cream between them. 这个蛋糕有三层，中间夹着奶油。 a layer of snow 一层雪 /ˈleɪə(r)/ layer a layer of paint 一层油漆 v.（使）融化；熔化 melt in the mouth 入口即化 例句： 1. The ice cream will melt quickly if you don’t eat it soon. 冰淇淋如果不快点吃，很快就会融化。 2. The snow melted when the sun came out. 太阳出来后，雪融化了。 melted adj.融化的 /melt/ melt melt the snow 融化积雪 n. 管道；管子；烟斗 water pipe 水管 例句： 1. The water came out of the broken pipe in the street. 水从街上破了的水管里流了出来。 2. The old man sat in his chair smoking a pipe. 老人坐在椅子上抽着烟斗。 3. They used large pipes to carry oil across the country. 他们用大管道把石油输送到全国各地。 /paɪp/ pipe gas pipe 煤气管 n. 隧道；地下通道 road tunnel 公路隧道 例句： 1. The train went through a long tunnel under the mountain. 火车穿过了山下一条长长的隧道。 2. They built a tunnel for cars to go under the busy road. 他们建了一条隧道，让汽车从繁忙的马路下面通过。 go through a tunnel 穿过隧道 /ˈtʌnl/ tunnel railway tunnel 铁路隧道 n. 旅游业；观光业 develop tourism 发展旅游业 例句： 1. Tourism is an important part of the city’s economy. 旅游业是这座城市经济的重要组成部分。 2. The new museum has helped increase tourism in the city. 新博物馆促进了这座城市的旅游业发展。 /ˈtʊərɪzəm/ tourism tourist n.游客；旅游者 趣味课堂 v. 获得；取得；增加 gain experience 获得经验 例句： 1. You will gain a lot of experience by working on this project. 参与这个项目你会获得很多经验。 2. She gained five pounds over the winter holiday. 寒假期间她胖了五磅。 3. The company has gained more customers since it improved its service. 自从改善服务后，这家公司赢得了更多客户。 /ɡeɪn/ gain gain knowledge 获得知识 趣味课堂 02 单词操练 itself invent plastic camera invention produce suppose wheel tourism printer complete gain frozen button sunglasses melt file super 03 单词练习 01 根据首字母或者给出的单词填空。 1. You can take beautiful photos with your c__________. 2. Don’t use too much p__________ bags, they are bad for the environment. 3. I s__________ he will come to the party this evening. 4. A car has four w__________. 5. Many cities make a lot of money from t__________. amera lastic uppose heels ourism 01 根据首字母或者给出的单词填空。 6. Paper is one of the greatest ancient __________ (invent). 7. The smart robot can clean the room all by __________ (it). 8. There are two __________ (hundred) students taking part in the school sports meeting. 9. This factory __________ (product) many kinds of daily goods every year. 10. This modern __________ (print) is widely used in our office. inventions itself hundred produces printer 02 选择最恰当的答案。 1. Everyone __________ follow the school rules in our school. A. is supposed to B. supposed to C. are supposed to D. suppose to 2. __________ people come to visit this beautiful town every year. A. Hundred B. Hundreds of C. Two hundreds D. Two hundred of 3. People __________ like different kinds of traditional food. A. all over the world B. in the world all C. over all the world D. world all over 4. You need to __________ your homework before watching TV. A. completing B. completed C. complete D. completely 5. We shouldn't use too many __________ bags because they pollute the earth. A. plastics B. plastic C. plastical D. a plastic 03 根据方框里的单词补全短文。 invention，plastic， complete， invented， super， hundreds, supposed, produce A Useful Great Invention Nowadays, products are everywhere around us. They are cheap and convenient in our daily life. Do you know who them? This great has changed people’s life a lot. Every day, factories lots of plastic goods. of workers work hard to finish their work and all the tasks(任务) on time. As students, we are to use plastic things wisely. We should try our best to reduce waste and protect our environment. plastic super invented invention produce Hundreds complete supposed 下节课见！ 1071.02 966.5303 888.16296 1018.77515 1584.0 992.6527 1384.4893 835.9181 888.16296 914.2854 1080.0 1071.02 783.6732 992.6527 888.16296 1512.0 3168.0 1175.5098 809.79565 940.40784 1097.1425 809.79565 940.40784 835.9181 809.79565 1123.2649 835.9181 $