Unit 5 Section A 单词讲解课件 2026-2027学年人教版英语九年级上册

该初中英语课件聚焦人教九年级上册Unit 5 Section A核心词汇，涵盖invention、camera等28个单词及短语，通过“单词预览—详细讲解”结构搭建学习支架，先引导学生整体感知词汇，再分单词解析释义、派生词、搭配及中英文例句，帮助学生衔接新旧知识。 其亮点在于以语言能力培养为核心，每个单词配情境化例句与拓展用法，如“the invention of...”短语助力表达；结合思维品质提升，模拟考场设词形转换、语法应用等题型，如用invent的派生词inventor填空，培养分析推断能力。教师可借助此资料系统教学，学生能高效掌握词汇应用，提升自主学习能力。

Unit 5 Section A 单词讲解 人教九年级上册 单击此处编辑母版标题样式 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2026/5/18 ‹#› 单击此处编辑母版标题样式 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2026/5/18 ‹#› 单击此处编辑母版标题样式 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2026/5/18 ‹#› 单击此处编辑母版标题样式 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2026/5/18 ‹#› 单击此处编辑母版标题样式 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2026/5/18 ‹#› 单击此处编辑母版标题样式 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 2026/5/18 ‹#› 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 单词预览 invention camera laptop high-speed train super hundreds (of ...) produce file plastic sunglasses mini- itself button 又 2 单词预览 printer invent all over the world suppose melt pipe tunnel tourism gain wheel frozen complete layer 又 3 invention /ɪnˈvenʃn/ 【释义】n. 发明；创造 the invention of ... …… 的发明 The invention of the Internet has completely changed the way people communicate and get information. 互联网的发明彻底改变了人们沟通和获取信息的方式。 new invention 新发明 This new invention helps people save much time on housework. 这项新发明帮助人们节省了很多做家务的时间。 【拓展】派生词：invent v. 发明 inventor n. 发明家 又 camera /ˈkæmərə/ 【释义】n. 照相机；（电影）摄影机 take a camera 带上相机 You should take a camera when you go on a trip to the mountains. 你去山里旅行的时候应该带上相机。 digital camera 数码相机 My uncle gave me a new digital camera as my birthday gift. 叔叔送给我一台新的数码相机作为生日礼物。 【拓展】security camera 监控摄像头 又 laptop /ˈlæptɒp/ 【释义】n. 笔记本电脑 My father bought me a new laptop to help with my study. 爸爸给我买了一台新的笔记本电脑来辅助我的学习。 You can take the laptop with you because it is very easy to carry. 你可以随身携带这台笔记本电脑，因为它非常轻便。 又 high-speed train 【释义】n. 高速列车 The high-speed train makes our trip between cities much faster. 高速列车让我们的城际出行快了很多。 I will go to Chengdu by high-speed train with my family this summer. 今年夏天我会和家人一起坐高速列车去成都。 又 super /ˈsuːpə(r)/ 【释义】adj. 超级的；顶好的 We had a super day at the beach last weekend. 上周末我们在海边度过了超棒的一天。 The Natural History Museum is a super place for kids. 自然历史博物馆是孩子们的超级好去处。 又 sunglasses /ˈsʌnɡlɑːsɪz/ 【释义】n. 墨镜 You need to wear sunglasses to protect your eyes on bright sunny days. 阳光明媚的日子里，你需要戴墨镜保护眼睛。 My mother bought a pair of beautiful sunglasses in the shop yesterday. 妈妈昨天在商店里买了一副好看的墨镜。 又 mini- /ˈmɪni/ 【释义】prefix. 微型的；短的 My grandma bought a mini-calculator to help her with shopping. 奶奶买了一个迷你计算器来帮她购物算账。 We keep some drinks and snacks in the mini-fridge in our bedroom. 我们在卧室的迷你冰箱里放了一些饮料和零食。 又 itself /ɪtˈself/ 【释义】pron. 它自己 by itself 独自；自动地 The little dog can finish its food by itself in a short time. 这只小狗可以在短时间内自己吃完食物。 hurt itself 伤到自己 The cat jumped down from the table, but it didn’t hurt itself.小猫从桌子上跳了下来，但没有伤到自己。 【拓展】对应复数形式：themselves 对应主格形式：it 又 button /ˈbʌtn/ 【释义】n. 按钮；扣子 If you want to turn on the light, just press this button.如果你想开灯，按下这个按钮就可以了。 There was a button missing from his shirt. 他衬衣上有一枚钮扣不见了。 又 hundreds (of ...) 【释义】许多；大量 Hundreds of visitors come to visit this famous museum every day. 每天都有许多游客来参观这座著名的博物馆。 There are hundreds of beautiful flowers in the park in spring. 春天的公园里有许多美丽的花。 又 produce /prəˈdjuːs/ 【释义】v. 生产；繁育 produce machines 生产机器 This big factory produces different kinds of machines for farmers. 这家大工厂为农民生产各种各样的机器。 produce vegetables 种植蔬菜 My grandparents produce fresh vegetables in their garden every year. 我的祖父母每年都在他们的菜园里种新鲜的蔬菜。 【拓展】名词：product（产品）；production（生产） 又 file /faɪl/ 【释义】n.（计算机的）文件；文件夹 You can find the homework in the file on the desktop of the computer. 你可以在电脑桌面的文件夹里找到作业。 Please send the important file to our teacher by email before this Friday. 请在本周五前用邮件把这份重要的文件发给老师。 又 plastic /ˈplæstɪk/ 【释义】n.&adj. 塑料（的） The pipes should be made of plastic. 这些管子应该是用塑料制作的。 plastic bags 塑料袋 We should try not to use plastic bags to protect our environment. 我们应该尽量不用塑料袋，来保护我们的环境。 plastic box 塑料盒 We can use this clean plastic box to keep the fruit fresh. 我们可以用这个干净的塑料盒来保鲜水果。 又 printer /ˈprɪntə(r)/ 【释义】n. 打印机；印刷公司 3D printer 3D 打印机 A 3D printer can create many kinds of daily necessities that we need in life. 3D 打印机可以制作很多我们生活中需要的日用品。 My uncle works at a well-known printer in the city. 我的叔叔在城里一家有名的印刷公司工作。 【拓展】派生词：print v. 打印；印刷 又 invent /ɪnˈvent/ 【释义】v. 发明；编造 invent a new tool 发明一种新工具 The worker invented a new tool to make his work much easier and faster. 这位工人发明了一种新工具，让他的工作 变得更轻松快捷。 invent a story 编造故事 The little girl invented a wonderful story about a magic forest to entertain her little brother. 小女孩编造了一个关于魔法森林的精彩故事来逗弟弟开心。 【拓展】派生词：invention n. 发明 inventor n. 发明家 又 all over the world 【释义】全世界 The great inventions of ancient China have spread to all over the world and influenced human history greatly. 中国古代的伟大发明传遍了全世界，极大地影响了人类历史。 This famous singer has millions of fans from all over the world who love his music. 这位著名歌手有来自全世界的数百万粉丝，都热爱他的音乐。 又 suppose /səˈpəʊz/ 【释义】v. 认为；推断 be supposed to do / be sth 应当做（某事）或是（某物） You are supposed to arrive at the airport two hours before your flight takes off. 你应该在航班起飞前两小时到达机场。 I don’t suppose... 我认为…… 不 I don’t suppose he will give up his dream of becoming a professional basketball player easily. 我认为他不会轻易 放弃成为职业篮球运动员的梦想。 【拓展】派生词：supposed adj. 假定的 又 wheel /wiːl/ 【释义】n. 车轮；轮子 front/rear wheel 前轮/后轮 The front wheel of my bicycle was broken, so I had to walk to school. 我自行车的前轮坏了，所以我只好步行去学校。 on wheels 带轮子的 This shopping cart on wheels is very convenient for customers to carry goods in the supermarket. 超市里这个带轮子的购物车方便顾客搬运商品。 【拓展】wheelchair n. 轮椅 又 frozen /ˈfrəʊzn/ 【释义】adj. 冻硬的；冰封的 The lake was completely frozen in winter, so we could walk safely on the ice. 冬天湖面完全冰封了，所以我们可以安全地在冰上行走。 I took some frozen meat out of the fridge and left it to melt before cooking. 我从冰箱里拿出一些冻肉，在烹饪前让它解冻。 又 complete /kəmˈpliːt/ 【释义】v. 完成；结束 adj. 完全的；彻底的 complete a project 完成一个项目 All the team members worked hard to complete the project ahead of the scheduled time. 所有团队成员都努力工作，提前完成了这个项目。 a complete failure 彻底的失败 His first attempt to climb the mountain was a complete failure, but he didn't lose heart. 他第一次登山的尝试彻底失败了，但他没有灰心。 【拓展】派生词：completely adv. 完全地；彻底地 又 layer /ˈleɪə(r)/ 【释义】n. 层；表层 There is a thin layer of fog on the window in the early morning, which makes the view outside blurry. 清晨的窗户上有一层薄雾，让外面的景色变得模糊。 You need to add a layer of protection to your phone screen to prevent it from being scratched. 你需要给手机屏幕贴一层保护膜，防止它被刮花。 又 melt /melt/ 【释义】v. (使) 融化；逐渐消失 The ice cream will melt quickly if you leave it in the sun for a long time in summer. 夏天如果你把冰淇淋放在太阳下太久，它会很快融化。 Her anger melted away as soon as she heard his sincere apology. 她一听到他真诚的道歉，怒火就渐渐消散了。 又 pipe /paɪp/ 【释义】n. 管道；管子；烟斗 The workers are repairing the water pipe on the street because it has been leaking for two days. 工人们正在修理街道上的水管，因为它已经漏了两天。 My grandfather likes to sit in the garden and smoke his pipe after dinner. 我的爷爷喜欢晚饭后坐在花园里抽他的烟斗。 又 tunnel /ˈtʌnl/ 【释义】n. 隧道；地下通道 The train went through a long tunnel before it finally arrived at the station. 火车穿过一条长长的隧道后终于到达了车站。 We drove through the mountain tunnel instead of climbing over the hill. 我们开车穿过山底隧道，而不是翻越山丘。 又 tourism /ˈtʊərɪzəm/ 【释义】n. 旅游业 develop tourism 发展旅游业 The local government has made many policies to develop tourism and boost the local economy. 当地政府出台了很多政策来发展旅游业，拉动当地经济。 Tourism has become one of the most important industries in many coastal cities. 旅游业已成为许多沿海城市最重要的产业之一。 【拓展】派生词：tour n. & v. 旅行 tourist n. 游客 又 gain /ɡeɪn/ 【释义】v. 获得；取得 You can gain a lot of valuable experience by taking part in volunteer activities in your spare time. 你可以在业余时间参加志愿活动，获得很多宝贵的经验。She gained the trust of her classmates by being honest and helpful all the time. 她一直诚实友善，因此获得了同学们的信任。 又 — Excuse me, does this shop sell ________? — Yes. We have laser printers and inkjet printers. A. printers B. wheels C. pipes D. tunnels 模拟考场 又 You ________ to arrive at the airport two hours before your flight takes off, or you might miss the plane. A. are supposing B. suppose C. are supposed D. supposed 模拟考场 又 用所给单词的正确形式填空。 1. The _________ (invent) of the smartphone has greatly changed people's daily life. 2. After three months of hard work, we finally _________ (complete) the project ahead of time. invention completed 模拟考场 又 3. If you leave the ice cream in the sun, it will _________ (melt) quickly. 4. By taking part in volunteer activities, you can _________ (gain) valuable life experience. melt gain 模拟考场 又 You _______________ wear a mask when you take public transportation during flu season. It’s an important rule to protect yourself and others. This smart suitcase _________ is very convenient for travelers. Moreover, it has been sold _________ ______. are supposed to all over the world be supposed to on wheels 选择合适的短语，并用其正确形式填空。 on wheels all over the world 模拟考场 又 Every year, ______ visitors come to the museum to learn about the history of great inventions in China. hundred of B. hundreds of C. three hundreds 模拟考场 又 The new ______ made in this local factory are very popular among young people, for they are cheap, safe and environmentally friendly. invent B. product C. products 模拟考场 又 用所给单词的正确形式填空。 1. Can you tell me who is the ________(invent) of the first practical digital camera in the world? 2. The smart locking system can check the safety of the door all by ______(it) when you are away from home. inventor itself 模拟考场 又 3. If you want to take perfect photos during the trip, you need to prepare at least two different ___________(camera) for different weather. 4. This kind of reusable plastic bottle _________ (produce) in this famous company to cut down white pollution. cameras is produced 模拟考场 又 The new robot vacuum cleaner can work ________ for two hours before it needs to go back to the charging station. ____________ volunteers have joined the community service project since it was set up three years ago. by itself by itself hundreds of 选择合适的短语，并用其正确形式填空。 Hundreds of 模拟考场 又 $