Unit 2 Amazing numbers Section 3 Expressing and communicating ideas同步练习2026-2027学年沪教版英语八年级上册

**基本信息** 沪教版初中英语八年级上册Unit 2 Section 3同步练，聚焦新授课语言能力培养，通过三级分层设计实现从词汇基础到语篇应用的渐进式巩固，适配课时目标与核心素养发展需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|词性转换、短语匹配|词形转换（如billion→billions）夯实词汇基础，重点短语翻译强化语言积累| |进阶层|句型结构、语法应用|句型转换（主动变被动）、改错（主谓一致）提升语法准确性，体现思维品质| |综合层|语篇理解、交际表达|语篇填空整合主题词汇，补全对话模拟真实交流，发展综合语言运用能力|

沪教版（新教材）初中英语八年级上册 Unit 2 Amazing numbers Section 3 Expressing and communicating ideas 同步练习 一、词形转换 1. billion ________(复数形式，表泛指) 2. increase ________(n. 增加；增长量) 3. decrease ________(n. 减少；减少量) 4. accurate ________(adv. 准确地；精确地) 5. express ________(n. 表达；表述) 6. double ________(adj. 两倍的；成双的) 7. describe ________(n. 描述；描写) 8. rapid ________(adv. 迅速地) 9. million ________(复数形式，表泛指) 10. pronounce ________(n. 发音；读音) 二、用所给词的适当形式填空 1. The population of this city has ________(increase) by 20% in the past ten years. 2. If you ________(double) the number 5, you will get 10. 3. Please give a clear ________(describe) of the strange number pattern. 4. We need to calculate the data ________(accurate) to get the right result. 5. It’s important to learn different ways of ________(express) numbers in English. 6. In some countries, ________(billion) of people are facing water shortages. 7. The ________(decrease) in the number of wild tigers makes us worried. 8. She speaks English with a clear ________(pronounce). 9. The city has developed at a ________(rapid) speed in recent years. 10. Over three ________(million) visitors come to this museum every year. 三、重点短语 1. 增加了百分之二十 ________________ 2. 两倍的大小 ________________ 3. 准确计算 ________________ 4. 表达数字 ________________ 5. 人口增长 ________________ 6. 描述数据 ________________ 7. 迅速减少 ________________ 8. 数以十亿计的 ________________ 9. 发音正确 ________________ 10. 交流数字信息 ________________ 四、用所给短语的适当形式填空 increase by 20%, double the size, calculate accurately, express numbers, population growth, describe the data, decrease rapidly, billions of, pronounce correctly, communicate number information 1. _______________ people around the world use mobile phones every day. 2. The area of the new park is _______________ of the old one. 3. To get the right answer, you must _______________. 4. Our teacher taught us some ways to _______________ in English. 5. The _______________ in this country has become a big problem. 6. In the last five years, the number of endangered animals _______________. 7. The sales of this product _______________ in the past month. 8. Please _______________ clearly so that everyone can understand. 9. When doing the research, we need to _______________ to our group members. 10. She can _____________ all the English numbers _____________. 五、按要求完成句子 increase / double / accurate / express / describe / rapid 1. The number of cars in this town _______________ a lot since 2018. 2. If you _______________ 6, you will get 12. 3. You need to write down the data _______________ to avoid mistakes. 4. It’s necessary _______________ your ideas clearly when talking about numbers. 5. Please _______________ the change of the population in your report. 6. The city has made _______________ progress in digital development. 六、句型转换 1. The population of China is about 1.4 billion.（对划线部分提问） ________ ________ the population of China? 2. The new library is twice as big as the old one.（改为同义句） The new library is ________ ________ ________ of the old one. 3. They have increased the production by 30%.（改为被动语态） The production ________ ________ ________ by 30%. 4. The number of students in our school decreased last year.（用现在完成时改写） The number of students in our school ________ ________ ________. 5. “1,234” is read as “one thousand two hundred and thirty-four”.（对划线部分提问） ________ ________ “1,234” ________? 七、改错（每句一处错误，划出并改正） 1. The number of wild birds have decreased a lot these years. ____________________________________________________________________ 2. He can express his idea clear when talking about numbers. ____________________________________________________________________ 3. The population of India is larger than China. ____________________________________________________________________ 4. Billions of people lives in Asia. ____________________________________________________________________ 5. We should learn how pronounce these big numbers correctly. ____________________________________________________________________ 八、重点句子翻译 1. 这个城市的人口在过去十年里增长了百分之十五。 ____________________________________________________________________ 2. 这个新广场是旧广场的三倍大。 ____________________________________________________________________ 3. 我们需要准确地计算这些数据来完成报告。 ____________________________________________________________________ 4. 数以百万计的人正在使用这款新应用程序。 ____________________________________________________________________ 5. 请正确发音这些大数字。 ____________________________________________________________________ 6. 人口快速增长给这个国家带来了许多问题。 ____________________________________________________________________ 九、语篇填空 阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。 increase, decrease, accurate, express, describe, rapid, billion, million, pronounce, communicate, population, double, data, clear, pattern Nowadays, numbers play an important role in our daily life. We use them to 1. ________ information, calculate 2. ________, and even tell stories. In many countries, the 3. ________ has been growing 4. ________. For example, in some African countries, the population has 5. ________ by over 30% in the past twenty years. On the other hand, the number of some wild animals has 6. ________ quickly because of pollution and hunting. When talking about big numbers like 7. ________ or 8. ________, we need to 9. ________ them correctly. It’s also important to 10. ________ numbers 11. ________ so that others can understand us well. A good way to practice is to 12. ________ the number 13. ________ in different situations. If you can do this, you will find it easy to 14. ________ with others about numbers. Remember, being 15. ________ with numbers is the key to getting things right. 十、补全对话 根据下面的对话情景，在每个空白处填上一个恰当的句子，使对话的意思连贯、完整。 A: Do you know anything about numbers in daily communication? B: Numbers? 1. ________________________? A: Well, they are not just for calculating. We use them to describe things too. B: That’s interesting! 2. ________________________? A: For example, we can say “the new building is three times as tall as the old one” to describe its size. B: Oh, I see. 3. ________________________? A: Yes, we also need to pronounce big numbers correctly. Like “1,000,000” is pronounced as “one million”. B: 4. ________________________? A: You can practice by reading numbers aloud every day. It helps a lot. B: 5. ________________________. I’ll try that from today. 参考答案 一、词形转换 1. billions 2. increase 3. decrease 4. accurately 5. expression 6. double 7. description 8. rapidly 9. millions 10. pronunciation 二、用所给词的适当形式填空 1. increased 2. double 3. description 4. accurately 5. expressing 6. billions 7. decrease 8. pronunciation 9. rapid 10. million 三、重点短语 1. increase by 20% 2. double the size 3. calculate accurately 4. express numbers 5. population growth 6. describe the data 7. decrease rapidly 8. billions of 9. pronounce correctly 10. communicate number information 四、用所给短语的适当形式填空 1. Billions of 2. double the size 3. calculate accurately 4. express numbers 5. population growth 6. has decreased rapidly 7. has increased by 20% 8. describe the data 9. communicate number information 10. pronounce; correctly 五、按要求完成句子 1. has increased 2. double 3. accurately 4. to express 5. describe 6. rapid 六、句型转换 1. What is 2. twice the size 3. has been increased 4. has decreased 5. How is; read 七、改错 1. have → has（The number of...作主语，谓语用单数） 2. clear → clearly（修饰动词express用副词） 3. China → that of China（比较对象要一致，population对应that of China） 4. lives → live（Billions of people作主语，谓语用复数） 5. how pronounce → how to pronounce（疑问词+不定式结构） 八、重点句子翻译 1. The population of this city has increased by 15% in the past ten years. 2. The new square is three times as big as the old one. / The new square is three times the size of the old one. 3. We need to calculate these data accurately to finish the report. 4. Millions of people are using this new app. 5. Please pronounce these big numbers correctly. 6. Rapid population growth has brought many problems to this country. 九、语篇填空 1. express 2. data 3. population 4. rapidly 5. increased 6. decreased 7. billion 8. million 9. pronounce 10. describe 11. clearly 12. double 13. pattern 14. communicate 15. accurate 十、补全对话（参考合理答案） 1. What do you mean 2. Can you give me an example 3. Do we need to pay attention to anything else when using numbers 4. How can I improve my pronunciation of big numbers 5. That sounds like a good idea 学科网（北京）股份有限公司 $