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

**基本信息** 本同步练习围绕“数字表达与交流”主题，通过基础巩固、能力提升、综合应用三层递进设计，实现从词汇到语篇的知识内化，适配新授课语言能力培养与思维品质发展需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础巩固|数字词汇（billion/percentage）、基础句型（倍数/百分比表达）|翻译6题、词汇运用15题、单选10题，聚焦单一知识点直接应用| |能力提升|上下文词汇运用、语法综合（时态/词性转换）|首字母填空10空，结合数字文化情境考查词汇辨析与语法应用| |综合应用|数字主题语篇构建、观点表达|书面表达1篇，要求整合数字知识阐述生活应用与重要性，培养综合语言输出能力|

Unit 2 Amazing numbers Section 3 Expressing and communicating ideas 练习作业 一、翻译 1. 中国的总人口超过十四亿。 ____________________________________________________________________________________________ 2. 这个地区的森林覆盖率已经增长了百分之十五。 ____________________________________________________________________________________________ 3. 我的英语考试分数是他的两倍。 ____________________________________________________________________________________________ 4. 大约三分之二的学生喜欢课后做运动。 ____________________________________________________________________________________________ 5. 这个小标志上的数字代表着安全距离。 ____________________________________________________________________________________________ 6. 他们正在讨论如何用数字来展示城市的发展。 ____________________________________________________________________________________________ 二、词汇运用 1. The world's population has reached 8 _______ (十亿) since 2022. 2. The _______ (百分比) of students who wear glasses in our class is about 40%. 3. If you save money every month, your savings will _______ (加倍) soon. 4. The government has taken actions to slow down the rapid _______ (增长) of population. 5. We need to _______ (表达) our ideas clearly when discussing the number problem. 6. The _______ (成功) of the project is marked by this amazing number. 7. With the _______ (发展) of technology, numbers are used in more fields. 8. The number of wild animals _______ (increase) a lot after years of protection. 9. It's important for us to learn to use numbers _______ (correct) in daily life. 10. Half of the _______ (child) in the village have never seen a computer before. 11. We had a hot _______ (discuss) about the influence of big numbers on our life. 12. The price of the house has risen by 20 _______ (percent) in the past year. 13. My father told me that a small mistake in numbers could lead to a big _______ (fail). 14. The _______ (rapidly) increase of online shopping changes our way of life. 15. More and more people realize the _______ (important) of learning about amazing numbers. 三、单项选择 ( )1. The population of this city _______ by 10% in the last five years. A. increased B. has increased C. is increasing D. will increase ( )2. _______ of the students in our school are from the countryside. A. Two third B. Two thirds C. Second third D. Second thirds ( )3. The number of books in our library _______ over 50,000 now. A. is B. are C. has D. have ( )4. My brother's height is _______ mine, so we often wear the same size of clothes. A. double B. twice C. as tall as D. as twice as ( )5. -What does the number on the sign mean? -It tells us to keep a _______ distance from the car in front. A. safe B. safely C. save D. saving ( )6. The company's profit _______ to 5 million dollars last year. A. increased by B. increased to C. increased with D. increased of ( )7. _______ people around the world use social media every day. That's an amazing number. A. Billion B. Billions C. Billion of D. Billions of ( )8. We need to _______ the problem into small parts to solve it easily. A. divide B. connect C. decide D. relate ( )9. The teacher asked us to _______ our opinions about the amazing numbers we learned. A. express B. discuss C. develop D. increase ( )10. -I made a mistake in the number calculation. -_______, be careful next time. A. That's right B. Never mind C. You're welcome D. Of course 四、首字母填空 Numbers are more than just tools for counting; they carry special meanings in different cultures. In China, the number 8 is considered a l 1______ number because it sounds like the word for "prosperity". On the contrary, the number 4 is u 2______ unlucky as it sounds similar to "death". The world's p 3______ hit 8 billion in November 2022. This big number shows how fast the global population has grown. Experts say that without proper control, the number will c 4______ to rise in the future. In science, numbers help us understand the world better. For example, the t 5______ of water boiling is 100 degrees Celsius. This number is known to almost everyone. When we talk about changes, we often use words like "double" or "half". If your score d 6______ in the next exam, you'll make your parents very happy. But if you spend h 7______ of your time playing games, you might fall behind in study. Learning to use numbers c 8______ is very important. A small mistake in numbers can cause big p 9______ . So we should always pay attention when dealing with numbers in our d 10 ______life. 1.________ 2.________ 3.________ 4.________ 5._________ 6.________ 7.________ 8.________ 9.________ 10._________ 五、书面表达 假设你们学校英文报正在举办以“Amazing numbers in my life”为主题的征文活动，请根据以下问题，写一篇英语短文投稿。 1. What amazing numbers have you learned recently? 2. How do people use these numbers in daily life? 3. What do you think of the importance of numbers? 要求：1. 短文需包含所有问题要点，并适当发挥; 2. 词数100左右。 Amazing numbers in my life ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ 参考答案 一、翻译 1. The total population of China is over 1.4 billion. 2. The forest coverage rate in this area has increased by 15 percent. 3. My English exam score is double his. 4. About two-thirds of the students like doing sports after class. 5. The number on this small sign represents the safe distance. 6. They are discussing how to use numbers to show the development of the city. 二、词汇运用 1. billion 2. percentage 3. double 4. growth 5. express 6. success 7. development 8. has increased 9. correctly 10. children 11. discussion 12. percent 13. failure 14. rapid 15. importance 三、单项选择 1. B 2. B 3. A 4. C 5. A 6. B 7. D 8. A 9. A 10. B 四、首字母填空 1. lucky 2. usually 3. population 4. continue 5. temperature 6. doubles 7. half 8. correctly 9. problems 10. daily 五、书面表达 Amazing numbers in my life Recently, I learned some amazing numbers. For example, the world's population reached 8 billion in 2022, and the speed of light is about 300,000 kilometres per second. People use these numbers in many ways. Governments use population numbers to make plans for education and healthcare. Scientists use the speed of light to study space. In daily life, we use numbers to count money, tell time and measure things. I think numbers are very important. They help us understand the world clearly and communicate better. Without numbers, our life would be messy and inconvenient. I'll learn more about amazing numbers to improve my life. 学科网（北京）股份有限公司 $