U2 C 单元限时检测-【初中必刷题】2026-2027学年八年级上册英语同步课件（沪教版·新教材）

该初中英语单元复习课件围绕八年级上册“Amazing numbers”主题，系统整合完形填空、阅读理解、语篇填词及书面表达等核心语言技能，通过语篇导读明确主题脉络，解析部分联系上下文逻辑与固定搭配，知识拓展补充词汇变形及短语用法，构建“词汇理解-语篇分析-语言输出”的完整知识网络。 其亮点在于以真实语境为载体设计复习活动，如完形填空通过环保人物故事训练上下文推断能力，阅读理解引入AI与水资源话题培养批判性思维，体现语言能力与思维品质的协同发展。分层题型覆盖基础巩固与综合应用，教师可通过限时检测精准把握学情，助力学生系统提升语言运用能力和自主学习效率。

英 语 八年级上册 HN 1 2 3 Unit 2 Amazing numbers 4 C 单元限时检测 5 刷速度 6 速度 Ⅰ.完形填空（10分） Ian Kiernan was born in Sydney, Australia, and grew up near the sea. For more than 40 years, he raced in international sailing competitions. In 1987, Kiernan was competing in an around-the-world race when he began to . .1. . the huge amount of rubbish in the world’s oceans. When he returned to Australia, he . .2. . to do something about it.#2 刷速度 返回目录 7 He organized a community . .3. . called “Clean Up Sydney Harbour”.On Sunday, 8 January, 1989, more than 40,000 volunteers came out to . .4. . away rubbish. The next year, Kiernan made the clean-up a national event. It was a huge . .5. ..Across Australia, about 300,000 people spent the day improving their local . .6. .. Since then, “Clean Up Australia” has got . .7. . every year. In 2002, for example, about 800,000 people cleaned up almost 15,000 tons of rubbish from Australia’s beaches， parks and streets.#4 刷速度 返回目录 8 Kiernan was . .8. . with the success of his project. In 2003, he started an even bigger programme. With the . .9. . of the United Nations Environment Programme, he introduced “Clean Up the World”, an international programme that supports communities around the world in cleaning up and protecting the environment.“Clean Up the World” has grown . .10. . and his wonderful idea has now spread from one city to the whole world.#5 完形填空·语篇导读 本文主要讲述了主人公为保护环境组织了一个叫作“清理悉尼 港湾”的社区活动，后来这个活动范围逐渐扩大的故事。 刷速度 返回目录 9 1.( ) A.save B.collect C.notice D.produce C 【解析】联系上下文可知此处指基尔南在参加比赛时注意到海里有很多垃圾。 2.( ) A.refused B.decided C.pretended D.stopped B 【解析】从上下文可知,这里说的是他决定去做一些事情。 3.( ) A.law B.party C.company D.event D 【解析】从本段的 Kiernan made the clean-up a national event可知选D项。 4.( ) A.clear B.send C.turn D.give A 【解析】根据上文可知,这些人应该是出来清理垃圾,clear away意为“清理”。 刷速度 返回目录 10 5.( ) A.problem B.success C.surprise D.failure B 【解析】后文讲到许多人参加这个清理垃圾活动,所以此处表示活动大获成功。 6.( ) A.culture B.project C.government D.environment D 【解析】根据上文可知,许多人参加这个活动来清理垃圾,所以这里指的是改善环境。 7.( ) A.older B.smaller C.bigger D.faster C 【解析】根据后一句可知，这个活动的规模每年都在变得更大。 刷速度 返回目录 11 8.( ) A.happy B.angry C.disappointed D.concerned A 【解析】根据the success of his project可知,基尔南应是感到“满意”。 知识拓展 success的形容词形式为successful，意为“成功的”；动词形式为succeed， succeed in doing sth 意为“成功做某事”。 9.( ) A.need B.help C.hope D.action B 【解析】with the help of为固定搭配,意为“在……的帮助下”,符合语境。 10.( ) A.loudly B.gently C.rapidly D.busily C 【解析】由后半句可知这个项目发展迅速。 刷速度 返回目录 12 Ⅱ.阅读理解（18分） A Jackie is writing a summary （总结） and feedback （反馈） about School Day to his teacher. Summary: School Day was held successfully on 6th May. Twenty-four student helpers from Grade 8 were divided into four groups of six. Each group had a task to raise money for the disabled.#1.2.1 刷速度 返回目录 13 Group 1 Group 2 Group 3 Group 4 School postcards （Leader: Natalie） Chinese paintings （Leader: Tina） Recycling bags made by students （Leader:Leo） Homemade snacks by parents （Leader:Nick） All of the groups performed well on School Day and received praise from the visitors. In short, our School Day went well and we got no poor opinions from the visitors.#1.2.3 刷速度 返回目录 14 Feedback: Opinions from 100 students have been collected. Most students thought the activities were good. However, some students thought the prices of the school postcards were a little high.#1.3.1 Satisfaction Feedback 刷速度 返回目录 15 Follow-up: Have a meeting with the headmaster about prizes for excellent student helpers. 阅读A篇·语篇导读 本文是一篇应用文。杰基收集了100名学生的反馈意见并为学 校日活动写了一份总结,还安排了活动的后续事项。 刷速度 返回目录 16 11.The text is written to ________.( ) A A.give a report B.have School Day C.collect opinions from visitors D.hold a meeting with teachers 【解析】推理判断题。通读全文可知，本文作者收集反馈信息是为了做一份关于 学校日的报告。 12.What were sold in Tina’s group?( ) B A.School postcards. B.Chinese paintings. C.Recycling bags. D.Homemade snacks. 【解析】细节理解题。由表格可知，蒂娜在第二组,出售中国画。 刷速度 返回目录 17 13.How did the visitors feel about the activities?( ) B A.Disappointed. B.Satisfied. C.Worried. D.Surprised. 【解析】推理判断题。由“All of the groups performed well on School Day and received praise from the visitors.”可推知,来访者对活动是满意的。 14.How many students liked the recycling bags according to the feedback?( ) A A.50. B.25. C.15. D.10. 【解析】细节理解题。由“Opinions from 100 students have been collected.” 及图表可知有50名学生喜欢可循环使用的袋子。 刷速度 返回目录 18 B Do you know ChatGPT？It’s an artificial intelligence （AI） tool. It can answer questions, tell stories and write articles. But it’s very“thirsty”, said a new study from Harvard University. ChatGPT has “homes” around the world in data centres （数据中心）.When it works, the computers in the data centres get very hot. Workers then have to use water to cool them down. Cold water goes into pipes near the computers. The water needs to be very clean. They can’t use seawater because it can eat away the pipes.#1.2 刷速度 返回目录 19 When you ask ChatGPT 50 questions, it“drinks”500 millilitres （ml） of water. Scientists used about 700,000 litres of water to build ChatGPT.The water use is very big. People can make 370 cars with the water. ChatGPT is just one of the AI tools around the world. You need data centres to do everything on the internet. There are more than 8,000 data centres around the world. The number is still growing.#1.4 刷速度 返回目录 20 AI uses a lot of water to “grow”.The world’s water may not be enough. Many people don’t have enough water to drink. But AI technology helps people. Should we rethink how we use AI？#1.5 阅读B篇·语篇导读 短文主要介绍了类似ChatGPT这样的人工智能工具会消耗大量 水资源。 刷速度 返回目录 21 15. 选项选择 Which of the following can ChatGPT do？( ) ①Answer questions. ②Fly planes. ③Write articles. ④Tell stories. C A.①②③ B.②③④ C.①③④ D.①②④ 【解析】细节理解题。根据第一段的“It can answer questions， tell stories and write articles.”可知选C项。 刷速度 返回目录 22 16.What does the underlined word “them” refer to in Paragraph 2？( ) B A.Homes. B.Computers. C.Workers. D.Pipes. 【解析】词义猜测题。根据文中第二段的“When it works， the computers in the data centres get very hot.Workers then have to use water to cool them down.”可知，them指代的是数据中心的计算机。 知识拓展 central adj.中心的 刷速度 返回目录 23 17.If you ask ONE question， how many millilitres of water can ChatGPT “drink”？( ) A A.10. B.100. C.50. D.500. 【解析】细节理解题。根据文中第三段的“When you ask ChatGPT 50 questions， it ‘drinks’ 500 millilitres （ml） of water.”可知，如果你问一个问题， ChatGPT能“喝”10毫升水。 刷速度 返回目录 24 18.What can we learn from Paragraph 4 and Paragraph 5？( ) D A.ChatGPT is the only AI tool around the world. B.The number of data centres is not growing now. C.AI tools can work in a better way without any water. D.We may have to “fight” with AI for water in the future. 【解析】推理判断题。根据最后一段的“AI uses a lot of water to ‘grow’.The world’s water may not be enough.Many people don’t have enough water to drink.”可推知，未来我们可能不得不与人工智能“争夺”水源。 刷速度 返回目录 25 19.What is the main idea of the article？( ) B A.ChatGPT is a good artificial intelligence tool. B.ChatGPT needs lots of water when it works. C.ChatGPT helps people do many different things. D.ChatGPT has “homes” around the world in data centres. 【解析】主旨大意题。通读全文可知，文章主要介绍了类似ChatGPT这样的人工智 能工具工作时需要大量的水。 刷速度 返回目录 26 Ⅲ.阅读还原（10分） Do you love Maths? 20.___ Fun activities helped students fall in love with Maths! On the first day, students put on plays and we watched some of them. My favourite play was about Hua Luogeng, a Chinese mathematician （数学家）.Three students played Hua at three different ages.21.___ The second day was the most interesting. Some students made rocket models with plastic （塑料的） bottles and launched them in the playground.22.___ The most successful one flew as high as the second floor of the teaching building.#1.2 B E F 刷速度 返回目录 27 23.___ They showed us some advanced equipment （先进的装备） and did experiments with us. For example, we made a small water-cleaning system. It turned dirty water into clean water! After finishing the experiment, I felt the magic of science. 24.___ Students are already looking forward to next year’s festival!#1.4 D C 刷速度 返回目录 28 A.Only a few students could join it. B.Recently, our school held a three-day Maths festival. C.The festival ended with a Maths teacher’s speech. D.The school invited some college students on the third day. E.They let us know about his amazing life and his love for Maths. F.They said making them was a challenge, but they finally succeeded. 阅读还原·语篇导读 文章介绍了学校举办的为期三天的数学节。 刷速度 返回目录 29 20. ___ B 【解析】根据上下文可知，第一段引出数学节，B项符合语境。 21. ___ E 【解析】根据前一句可知此处应是对学生扮演华罗庚的介绍。 22. ___ F 【解析】根据上下文可知此处指他们做火箭模型成功了。 23. ___ D 【解析】根据第二段中的On the first day和第三段中的The second day可知， 此处应该介绍第三天的活动。 24. ___ C 【解析】根据最后一句可知，此处应该提到活动结束的事情，故选C项。 刷速度 返回目录 30 Ⅳ.语篇填词（5分） 【2026广东广州期末】Numbers are very important to us, and we see them every day. Last week, our Maths teacher asked us to 25.c __________ the budget for our class party. Everyone took out their notebooks and wrote down each expense clearly: 20 yuan for snacks, 15 yuan for drinks, and 10 yuan for decorations. After finishing, we 26.c ________ our results together. I made a small mistake at first, but Lucy is a 27.t _________ girl—she is good at using numbers. Her answer was 28.e ________ right: the total was 45 yuan! All of us in the class agreed that numbers help us avoid mistakes. We use numbers alculate hecked alented xactly 刷速度 返回目录 31 29.e ___________, such as at the airports and supermarkets. Without numbers, life would be messy. So let’s learn to use numbers well. They are our helpful friends! 语篇填词·语篇导读 本文主要介绍了作者通过数学课上老师让同学们计算班级聚 会的预算而感悟到数字的重要性。 verywhere 刷速度 返回目录 25. ___________ calculate 【解析】根据下文 Everyone took out their notebooks and wrote down each expense clearly可知，大家拿出笔记本记录各项费用，可推断数学老师是让学生 计算班级聚会的预算，动词calculate意为“计算”，符合语境，ask sb to do sth意为“让某人做某事”，故填calculate。 刷速度 返回目录 33 26. _________ checked 【解析】句意为：完成后，我们一起核对了结果。根据下文“I made a small mistake at first, but Lucy is a… girl—she is good at using numbers .” 可知,“我”开始算错了，但露西算对了，可推断这是大家在核对结果后发现的， 动词check意为“核对”，符合语境，结合空前动词took可知本句时态为一般过去 时，空处用动词过去式，故填checked。 知识拓展 be good to 对……友好/和善 be good for 对……有好处/有益 be good at= do well in 擅长…… be good with 善于应付/处理……；与……相处融洽 刷速度 返回目录 34 27. __________ talented 【解析】句意为：……但露西是个很有天赋的女孩——她擅长使用数字。根据后 文 she is good at using numbers可知，她擅长使用数字，可推断露西很有天赋， 形容词talented意为“有天赋的”，修饰名词girl，符合语境，故填talented。 链接狂K number的详细讲解见狂K重点P9。 28. _________ exactly 【解析】根据句子结构可知，空处用副词修饰形容词，结合后文the total was 45 yuan可知，露西的答案是完全正确的，副词exactly意为“完全地”，符合语 境，故填exactly。 刷速度 返回目录 35 29. ____________ everywhere 【解析】句意为：我们在任何地方都使用数字，比如在机场和超市。根据后文 such as at the airports and supermarkets可知，数字无处不在，everywhere 意为“到处”，符合语境。故填everywhere。 刷速度 返回目录 36 Ⅴ.书面表达（25分） 30.假如你是杨珊, 最近你做了一项关于业余活动的小调查。请根据下面表格中的 内容, 用英文写一篇短文来描述你的调查结果。 同 学 课外活动 频 率 李玉 国际象棋 一周五次 贝蒂 踢足球 一周三次 迈克 看英语杂志 每天 要求：80词左右,开头已给出,不计入总词数。 I’m Yang Shan. I asked my friends about their free time activities. Here are the results. ___ 刷速度 返回目录 37 【参考范文】 I’m Yang Shan.I asked my friends about their free time activities.Here are the results. Li Yu is interested in chess.She started to play chess when she was little.Now she plays chess five times a week.She thinks it helps her relax.Betty loves sports and playing sports makes her strong.Her favourite sport is soccer.She plays soccer three times a week.Mike is a shy boy.He enjoys reading very much.Every day he reads English magazines.He thinks he can learn a lot of things from them. I think all of their free time activities are good.Do you think so? 刷速度 返回目录 38 $