Unit 5 Section A 第1课时 Section A(1a-2d)（Word教师用书）-【中考123】2026-2027学年九年级上册英语全程导练（人教版·新教材）

Unit 5 Power of Ideas Section A　What changes can inventions bring to our lives? 第1课时　Section A(1a­2d) [答案 P13] 一、根据首字母填写单词。 1．I use my laptop to take notes and finish my homework every evening. 2．The high­speed train from Beijing to Shanghai only takes about four and a half hours. 3．Please press the red button to start the machine. 4．We should reduce the use of plastic bags to protect the environment. 5．This farm produces fresh organic vegetables for local supermarkets. 二、用括号内所给单词的适当形式填空。 1．The invention(invent)of the smartphone has greatly changed our daily lives. 2．My little brother designed(design)a cute keychain on his computer and then printed it with a 3D printer. 3．The machine can turn off itself(it)when it finishes working. 4．Hundreds(hundred)of students take part in the school sports meeting every year. 5．I need to connect my phone to the printer(print)to print my report. 三、句型转换：改为被动语态，每空一词。 1．People can finish the work in two days. The work can be finished in two days. 2．He waters the flowers every morning. The flowers are watered by him every morning. 3．She wrote a beautiful poem last night. A beautiful poem was written by her last night. 4．We can take good care of the sick kids. The sick kids can be taken good care of by us. 5．They hold a sports meeting every year. A sports meeting is held by them every year. 四、补全对话。 (During the break, Lily and Tom are talking about tech inventions. L＝Lily; T＝Tom) L: Hi Tom! Our science teacher asked us to talk about our favourite invention. What invention do you like the most? T: Oh, that's easy! I like the 3D printer the most. 1.It's such a cool and creative invention! L: 3D printer? I've heard of it, but I don't know much about it. 2.What can it do exactly? T: Well, it can make almost anything you can imagine, from toy cars to phone cases, even parts for robots! You just design a 3D model on a computer, and the printer builds it layer by layer with plastic or other materials. L: 3.Wow, that sounds like magic! Why do you like it so much? T: Because it lets you turn your ideas into real things quickly. Last month, I used a 3D printer to make a custom chess set for my grandpa's birthday. 4.He loved it a lot! It's also great for schools. We can print science models like human bones or solar systems for our projects. L: 5.That's amazing! I never thought 3D printers could be so useful. Maybe I should try designing something with it too. T: You totally should! It's not as hard as it looks. I can show you how to use the design software after class. L: Thanks Tom! That would be awesome. Now I know my favourite invention too. 3D printers are pretty cool! 五、阅读理解。 A Glasses are one of the most useful inventions in history. But do you know how they started? The first “reading stones” were used in ancient Rome around 100 AD． These were small glass spheres that magnified(放大)text, helping people with poor eyesight read. By the 13th century, Italian inventors created the first wearable glasses with frames and lenses. Today, glasses are not just for seeing better—they're becoming smart! Meet Super C Glasses, a creative invention designed for middle school students. These glasses have five amazing features： Blue Light Filter: Protects eyes from phone and computer screens. Smart Reminder: Vibrates(震动)when you need to take a break from studying. Vocabulary Helper: Scans new English words and shows definitions instantly. Posture Corrector: Alerts you if you slouch(耷拉)while reading or writing. Night Mode: Adjusts lens brightness to reduce eye strain in low light. The inventor of Super C Glasses, 16­year­old Li Ming, got the idea from his own struggles. “I often forgot to take breaks and my eyes hurt after studying，” he said. “I wanted to create something that could help students like me.” His invention won first prize at the national Teen Innovation Fair. From simple glass lenses to high­tech smart glasses, this invention shows how creativity can turn everyday problems into amazing solutions. Who knows? Maybe the next great invention will come from you! 根据短文内容，选择最佳答案。 (B)1.What were the first “reading stones” in ancient Rome? A．Wearable glasses with frames. B．Small glass spheres for magnifying text. C．High­tech smart lenses. D．Blue light filters. (C)2.Who created the first wearable glasses with frames and lenses? A．16­year­old Li Ming. B．Ancient Roman scholars. C．Italian inventors in the 13th century. D．Teen Innovation Fair judges. (C)3.Which feature of Super C Glasses helps with posture? A．Blue Light Filter. B．Smart Reminder. C．Posture Corrector. D．Night Mode. (B)4.Where did Li Ming get the idea for Super C Glasses? A．From a national invention competition. B．From his own study­related problems. C．From Italian inventors' history. D．From his teachers' suggestions. (C)5.What is the main idea of the passage? A．Glasses have a long history in Italy. B．Smart glasses are only for students. C．Creativity can solve everyday problems. D．Inventions always start from young people's ideas. B Imagine walking into your kitchen after school, hungry but tired of the same old noodles. What if a smart machine could cook your favourite meal in minutes? 1.E It's called Smart Cook, and it's changing how middle schoolers cook at home. Smart Cook is a small, portable device that connects to your phone. First, you choose a recipe from its app—there are 100＋ options, from simple fried rice to spicy chicken. 2.F For example, if you pick “Coke Chicken Wings”， it will tell you to add 300ml of Sprite instead of cola for a sweeter taste! Once you put the ingredients in the pot, Smart Cook does the rest. 3.A It even adjusts the heat automatically if the food starts to burn. No more standing by the stove, worrying about overcooking! But Smart Cook isn't just about easy cooking. 4.C The app has a “Learn Mode” that teaches you basic cooking skills, like how to chop vegetables safely or measure ingredients. You can even earn “Cook Badges” for trying new recipes. 5．B With Smart Cook, you can make a delicious meal for your family in less than 20 minutes. It's perfect for busy students who want to help out at home or just enjoy a tasty snack. Who says cooking has to be hard? 根据短文内容，从方框内所给的选项中选出能填入空白处的最佳选项，使短文语意连贯，选项中有一项为多余项。 A．It controls the temperature and cooking time using its built­in sensors. B．This smart device makes cooking fun and stress­free for everyone. C．It's also a great way to learn real­life skills while having fun. D．Many middle schoolers don't know how to cook simple meals. E．Well, now that dream can come true with a new invention. F．The app even lets you customize recipes, like swapping(交换)ingredients for your favourites. 学科网（北京）股份有限公司 $