Unit 5 Section A（2a-2d）（同步教学课件） 2026-2027学年九年级英语上册（新教材人教版）

Section A 1a-1d Unit 5 Power of Ideas Learning Aims 语言能力 文化意识 思维品质 学习能力 提升词汇运用、听力理解和口语表达的综合语言运用能力，形成围绕特定主题的交流意识； 掌握“关键词捕捉法”等听力技巧，学会自主预习、小组合作的学习方式，提升自主探究和协作能力。 通过观察图片、分析听力信息、仿写句子，培养逻辑思维和情景联想能力. 了解不同地区常见自然灾害的分布特点，培养对自然的敬畏之心和防灾减灾的基本认知； It’s a 3D printer. What’s this? What can a 3D printer make? 2a Tick the things that you think a 3D printer can make. You can add more. medicine tables chairs arms and legs shoes food hearts computers _____________________ toys houses model planes, toy cars… 2b Listen to the conversation and answer the questions. 1. Where did Han Lin go last weekend? 2. Why was the 3D printer Han Lin’s favourite invention? The International Exhibition of Inventions. Because almost everything under the sun can be made by it. 2c Complete the sentences with the correct forms of the words in the box. Then listen again and check your answers. read design produce create send First, the object is ________ on the computer. 1 Then, a file is __________ by the computer. 2 And the file is ________ to the 3D printer. 3 Next, the file is _______ by the 3D printer. 4 Finally, the object is _________ by building up plastic. 5 designed created sent read produced Ella: Hi, Han Lin! Did you go to the International Exhibition of Inventions last weekend? Han Lin: Yes, some amazing inventions were shown from___________________. Ella: What invention did you like the most? Han Lin: Oh, the 3D printer was amazing. Ella: Why? Han Lin: Almost everything under the sun___________________by it. Ella: Really? Like what? Han Lin: Well, all kinds of___________________. Toys, chairs, tables, and even houses can all be made by the 3D printer. all over the world can be made everyday objects Ella: That’cool! Han Lin: Yeah. And________________for example, arms and legs, even hearts can be created by the 3D printer. Ella: That’s great! How does it work? Han Lin: Well, first, the object________________on a computer. Then, a file is created and sent to the 3D printer. The 3D printer reads the file, and after that, the object___________________building up plastic. Ella: Is only plastic used? Han Lin: No, other materials can also be used to produce things. It can even make food. Ella: Oh, really? I’d love to try 3D-printed food! in medicine is designed is produced by 1. Where did Han Lin go last weekend? 2. Why was the 3D printer Han Lin's favourite invention? Now let’s listen again and answer these questions. He went to the International Exhibition of Inventions Because almost_________ under the sun can_________by it. everything be made 3. How many examples of “everyday objects” does Han Lin give? Four./ He gives four examples. They are arms, legs, and hearts. 4. Han Lin gives three examples in medicine. What are they? Ella: Hi, Han Lin! Did you go to the International Exhibition of Inventions last weekend? Han Lin: Yes, some amazing inventions were shown from all over the world. Ella: What invention did you like the most? Han Lin: Oh, the 3D printer was amazing. Ella: Why? Han Lin: Almost everything under the sun can be made by it. Ella: Really? Like what? Han Lin: Well, all kinds of everyday objects. Toys, chairs, tables, and even houses can all be made by the 3D printer. Listen again and repeat Ella: That’s cool! Han Lin: Yeah. And in medicine for example, arms and legs, even hearts can be created by the 3D printer. Ella: That’s great! How does it work? Han Lin: Well, first, the object is designed on a computer. Then, a file is created and sent to the 3D printer. The 3D printer reads the file, and after that, the object is produced by building up plastic. Ella: Is only plastic used? Han Lin: No, other materials can also be used to produce things. It can even make food. Ella: Oh, really? I’d love to try 3D-printed food! Section A, 2b and 2c Ella: Hi, Han Lin! Did you go to the International Exhibition of Inventions last weekend? Han Lin: Yes, some amazing inventions were shown from all over the world. Ella: What invention did you like the most? Han Lin: Oh, the 3D printer was amazing. Ella: Why? Han Lin: Almost everything under the sun can be made by it. Ella: Really? Like what? Han Lin: Well, all kinds of everyday objects. Toys, chairs, tables, and even houses can all be made by the 3D printer. Ella: That’s cool! Han Lin: Yeah. And in medicine, for example, arms and legs, and even hearts can be created by the 3D printer. Ella: That’s great! How does it work? Han Lin: Well, first, the object is designed on a computer. Then, a file is created and sent to the 3D printer. The 3D printer reads the file, and after that, the object is produced by building up plastic. 被动语态由“助动词be十及物动词过去分词”构成。助动词be有人称、数和时态的变化。 被动语态 1. 对应关系：英语被动语态对应中文的“被字句”，主动语态对应“把字句”。 2. 基本结构： be + 动词过去分词 ，表示“被……”。 3. 补充说明：若要引出动作的执行者，需在句末用介词 by + 人物 ，且 by 后接宾格形式。 How does a 3D printer work? First, the object is designed on the computer. Then, a file is created by the computer. And the file is sent to the 3D printer. Next, the file is read by the 3D printer. Finally, the object is produced by building up plastic. 2d List the things you use every day and choose the one that you like the most. Then talk about what it can be used for and its importance. A: What invention do you like the most? B: I like ... the most. A: What can it be used for? B: It can be used for / to ... A: Amazing! / Fantastic! Is it important in your daily life? B: Yes, it ... Things I use every day laptop pencil desk _______ A: What invention do you like the most? B: I like my bicycle the most. A: What can it be used for? B: It can be used for travelling to school and getting around the city. It can also be used to exercise and stay healthy. A: Amazing! Is it important in your daily life? B: Yes, it is. I ride it to school every day. It saves time and money. It is also good for the environment. Sample 1 A: What invention do you like the most? B: I like _____________ the most. A: What can it be used for? B: It can be used for_______________________________ _______________________________________________ A: Amazing! Is it important in your daily life? B: Yes, it is. It ________________________________________. smartphone communicating with friends, taking photos, surfing the Internet and so on. makes our life more convenient Sample 2 Sample 3 A: What invention do you like the most? B: I like _____________ the most. A: What can it be used for? B: It can be used to_______________________________ _______________________________________________ A: Amazing! Is it important in your daily life? B: Yes, it is. It ________________________________________. the desk do my homework and put my books and laptop on. is very helpful for my study. Language points Point 1 Why was the 3D printer Han Lin’s favourite invention? printer /ˈprɪntə(r)/ n. 打印机；印刷公司 由“print(v. 打印) + -er”构成。 This kind of printer is widely used in schools and offices. 这种打印机被广泛用于学校和办公室。 We sent the files to the printer yesterday, and the books should be ready next week.我们昨天把文件发给印刷厂了，书下周应该能印好。 拓展：print〔名词〕印刷品 〔动词〕打印 Point 2 Finally, the object is produced by building up plastic. We pride ourselves on producing high-quality products. 我们以生产高质量的产品而自豪。 An adult cat may produce kittens three times a year. 一只成年猫一年可能生三窝小猫。 produce /prəˈdjuːs/ v. 生产；繁育 [不可数名词] 产品；（尤指）农产品 The shop sells only fresh local produce. 这家商店只售当地的新鲜农产品。 词义拓展 (1)[及物动词]生产 It’s said that those laptops were produced in Germany. 据说那些笔记本电脑是在德国生产的。 (2)[及物动词]繁育 Scientists did a lot of research to help pandas produce more babies. 科学家们做了大量研究来帮助熊猫生育更多的幼崽。 (3)[及物动词]制作，拍摄（电影、戏剧等） How many films has the famous director produced so far? 到目前为止这位著名的导演拍了多少部电影了？ (4)[不可数名词] 产品；（尤指）农产品 Hundreds of people prefer to buy farm produce online. 许多人更喜欢在网上买农产品。 辨析：produce, make 与create produce  强调“大规模生产”(尤指工厂生产或自然产出) make  最通用，强调“制作的过程”(手工、简单制造) create  强调“创造出全新的、原创的事物”(抽象或具体)  例：This phone is produced in China. 这款手机是中国制造的。 She makes cute paper cards for her friends. 她给朋友们制作可爱的纸质贺卡。 The artist created a special painting about hometown. 这位画家创作了一幅关于家乡的独特画作。 Point 3 ① There are hundreds of students in our school. 我们学校有数百名学生。 ② The library has hundreds of new books.图书馆有数百本新书。 ③ Hundreds of old things were discovered here. 在这里发现了大量古文物。 hundreds of + 可数名词复数 Hundreds of kinds of dishes can be made by Smart Cook. 智能炒菜机可以做出成百上千种菜肴。 成百上千的; 许多，大量 数字 + hundred + 可数名词复数： 表示确切的 “几百”。 ① There are two hundred students in our grade.我们年级有两百名学生。 ② The library has three hundred books about science. 图书馆有三百本科学类书籍。 And the file is sent to the 3D printer. 文件被发送到 3D 打印机。 send+宾语+ to +地点/人 把…… 发送 / 寄 / 送到…… ① Please send the letter to my friend. 请把这封信寄给我的朋友。 ② I will send the photo to you. 我会把照片发给你。 ③ The boy is sent to hospital. 这个男孩被送往医院。 be sent to … 被送到 / 被发送到…… Point 4 Exercises 单项选择 一、单项选择。 A 2.The teacher stressed again that the students should not _____ any important details while retelling the story. A．make out B．leave out C．stand out D．bring out 1.These photos are very beautiful. I wonder where they _______. A．were taken B．are taking C．have taken D．are taken B 3.—Mom, may I go shopping with my friends this afternoon? —Sorry. You can’t go out before your homework ________. A．is completed B．completes C．has completed D．had completed 4. Every drawing ______ carefully before it is printed by the machine. designs B. is designed C. designed D. are designed A B 5. The bread ______ so nice. Its smell fills the kitchen. A. smells B. tastes C. sounds D. looks 6. This robot can make ______ kinds of tasty food for the family. hundred of B. hundreds of C. two hundred of D. hundreds 7. The young ______ created many useful small machines last year. A. inventor B. invention C. invent D. discover A B A 二、根据首字母及汉语提示，完成下列单词的拼写。 1. Solar panels can turn sunlight into _______(电) to power our homes. 2. Press the green _________ (按钮) to start the machine and the red one to stop it. 3. Too much ______(污染) from cars makes the air unhealthy to breathe. 4. You should wear a helmet to protect your ______ (头) when you ride a bike. 5. My uncle uses a digital ________ (照相机) to take photos of birds in the forest. electricity button pollution head camera 三. 用括号内单词适当形式填空（被动语态） This model car __________ (design) by students on the computer. Many small gifts ______________ (produce) by the 3D printer. The information ________ (send) to the machine before it works. These pictures ________ (read) by the smart glasses. Different toys _________________ (can / create) by 3D printers. is designed are produced is sent are read can be created 6. The smart fridge can order food for ______ (it) when it finds that the milk is finished. 7. The telephone is one of the most important _________ (invent) in human history. 8. This new machine can print objects using a special kind of _________ (print). 9. Please put these important ___________ (document) into the safe. 10. _________ (thousand) of tourists visit the Great Wall every year to see the ancient defense structures. itself inventions printer documents Thousands 11.All the players ____________ (praise) highly for fighting hard for their hometowns during the match. 12.With the development of the society, we ______________ (influence) a lot by modern media, such as Douyin and Kuaishou. 13.The book was _________ (translate) into many other languages last year. 14.The boy came up with a ________ (use) idea to save water. 15.Lots of famous ___________ (invent) were made by teenagers. were praised are influenced translated useful inventions 1. 这些工具是用3D打印机生产的。 These tools ____ _________ ____ 3D printers. 2. 他按了一个按钮，然后等着坐电梯。 He _______ __ _______ and waited for the lift. 3. 那把旧椅子应该扔掉了。 That old chair ______ ___ _______ _____. are produced by pressed a button should be thrown away 四、完成句子，每空一词。 4.Workers make many model toys.（改为被动语态） Many model toys ________ ________ by workers. 5.We can print many different things with a 3D printer. （改为被动语态） Many different things _______ ______ ______ with a 3D printer. are made can be printed 本课句型 Summary 我都 学会了! Key words Expression invention, laptop, high-speed train, super, sunglasses, button, itself, printer, produce, file, plastic hundreds of，like… the most, all over the world, all kinds of everyday objects, in medicine, send… to… ① What can it be used for? ② It can be used for/to ... ③ How does it work? Sentences Basic (必做) 复习并牢记本堂课的重点单词、短语和句型。 Improving(选做) 2.用所学句型和同学讨论某样发明的功能，可以录制视频 Extend (选做) 3.选择一项你日常使用的发明或你认为最重要的发明，制作一张英文思维导图，并用英文写一段 60–80 词的介绍。 Homework Thank you ! null 75989.805 null 91194.555 null 20166.523 $