Unit2知识点-B部分练习2025-2026学年沪教版(五四学制）英语八年级下册

八年级英语下册Unit2知识点-B部分练习 小试牛刀 A. 选用方框中的短语填空（每个限用一次） | change our daily habits | in an emergency | thousands of times | take people to hospital | keep going | 1. The light bulb has __________. 2. While Edison was inventing a safe light bulb, he failed __________. 3. The car can __________ quickly __________. 4. Edison’s words encourage me to __________ when I want to give up. B. 句型转换（改为一般疑问句并作肯定或否定回答） 1. The light bulb is the greatest modern invention. 一般疑问句：________________________________________________ 肯定回答：________________ 否定回答：________________ 2. Edison failed thousands of times before he succeeded. 一般疑问句：________________________________________________ 肯定回答：________________ 否定回答：________________ 3. The car can take people to hospital quickly in an emergency. 一般疑问句：________________________________________________ 肯定回答：________________ 否定回答：________________ 配套练习 A. 单项选择（★） 从A、B、C、D中选择最佳答案。 1. According to Lu Yao, what would be hard to do without the light bulb? A. Drive a car. B. Do homework or play games after dark. C. Make a phone call. D. Travel to the countryside. 2. How many times did Edison fail before inventing a safe light bulb? A. Hundreds of times. B. Thousands of times. C. Tens of times. D. Once. 3. Why does Harry think the car is the greatest modern invention? A. Because it is cheap. B. Because it can take people to hospital quickly in an emergency. C. Because it looks cool. D. Because it is easy to drive. 4. What does the computer allow people to do? A. Work faster and store more information. B. Cook food. C. Build houses. D. Plant trees. 5. What does the telephone change? A. The way people travel. B. The way people communicate and work. C. The way people eat. D. The way people sleep. B. 完成句子（★★） 根据对话和网页内容，用正确的词汇完成句子。 1. 灯泡改变了我们的日常习惯。 The light bulb has changed our daily __________. 2. 想象一下没有它的生活。 __________ our life without it. 3. 在爱迪生发明安全廉价的灯泡时，他失败了数千次。 While Edison was inventing a safe and inexpensive light bulb, he __________ thousands of times. 4. 汽车真的又快又方便。 The car is really fast and __________. 5. 它可以在紧急情况下快速送人们去医院。 It can __________ people to hospital quickly in an __________. 拓展思考 Part 1（你认为哪项现代发明最伟大？为什么？） 写一段话（至少5句）。说明你的观点，并用细节支持。 使用以下表达：In my opinion, the greatest modern invention is, because, it helps us, for example, without it, I believe __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ Part 2（给同学写一段话，解释为什么爱迪生值得敬佩） 写一段话（至少5句）。他面对失败的态度是什么？我们能学到什么？ 使用以下表达：Edison is admirable because, he failed, but he never, his words encourage me to, I think __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ Part 3（为什么发明对我们的生活影响巨大？） 写一段话（至少5句）。选择一项发明，说明它如何改变了人们的生活。 使用以下表达：The invention of ... has greatly changed our lives. Before it, people, now, they can, it also helps, I believe __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ 参考答案与解析 小试牛刀 A 1. changed our daily habits 2. thousands of times 3. take people to hospital, in an emergency 4. keep going 小试牛刀 B 1. Is the light bulb the greatest modern invention? Yes, it is. / No, it isn’t. 2. Did Edison fail thousands of times before he succeeded? Yes, he did. / No, he didn’t. 3. Can the car take people to hospital quickly in an emergency? Yes, it can. / No, it can’t. 配套练习 A 1. B 2. B 3. B 4. A 5. B 配套练习 B 1. habits 2. Imagine 3. failed 4. convenient 5. take, emergency 拓展思考（示例） Part 1 In my opinion, the greatest modern invention is the computer. Because it helps us work faster and store more information. For example, we can write reports, study online, and connect with friends. Without it, many things would take much longer. I believe the computer has truly changed the world. Part 2 Edison is admirable because he failed thousands of times but never gave up. He kept trying until he succeeded. His words encourage me to keep going when I face difficulties. I think we should learn from his hard work and positive attitude. Part 3 The invention of the telephone has greatly changed our lives. Before it, people had to write letters or travel to talk to someone far away. Now, they can call or video chat in seconds. It also helps in business and emergencies. I believe the telephone made the world smaller and closer. 1 学科网（北京）股份有限公司 $