Unit 2 Amazing numbers 单元基础练习 2026-2027学年沪教版英语八年级上册

Unit 2 Amazing numbers单元基础练习（2026-2027学年沪教版英语八年级上册） 一、根据句意、汉语或首字母提示写出单词。 1. The a______ age of the players in this football team is 19. 2. Please ______ (加上) these numbers and tell me the final result. 3. One t______ is equal to 10 hundreds. 4. We can use a calculator to ______ (计算) this difficult math problem. 5. If you m______ 6 by 7, you will get 42. 6. The ______ (整个的) class got excited when they heard the good news. 7. 1, 3, 5 are o______ numbers while 2, 4, 6 are even numbers. 8. You made a ______ (错误) in your math homework, please correct it. 9. The new ______ (系统) can help us count the products faster. 10. S______ 10 from 15, and you can get 5. 11. It is ______ (惊人的) that the old man can remember over 10,000 phone numbers. 12. 12 d______ by 3 is 4. 13. The ______ (数量) of the books in our school library is over 20,000. 14. He is very good at math, e______ mental arithmetic. 15. Before you hand in your paper, you should c______ your answers carefully. 16. The abacus is a great ancient ______ (发明) for calculating. 17. The ______ (准确的) time of the meeting is 9:30 a.m. tomorrow. 18. 0.5 is a d______ number while 1/3 is a fraction. 19. China has a population of more than 1.4 b______ now. 20. With the ______ (发展) of technology, calculating becomes much easier than before. 二、根据句意，用括号内所给词的适当形式填空。 1. It is ______ (amaze) that a butterfly has 12,000 eyes. 2. The calculator can finish hundreds of ______ (calculate) in one second. 3. My deskmate is good at ______ (count) numbers faster than others. 4. We need to find a ______ (accuracy) way to solve the problem. 5. The ______ (invent) of the computer changed people's life a lot. 6. Look! The little boy ______ (add) the numbers on the blackboard carefully. 7. She usually ______ (check) her test paper twice before handing it in. 8. My father taught me how ______ (use) an abacus when I was young. 9. It is difficult for the little kid ______ (work) out such a difficult math problem. 10. The ______ (develop) of the digital age makes our life more convenient. 11. There are at ______ (little) 200 people attending the speech now. 12. A number of ______ (student) love learning math very much. 13. You should pay attention to ______ (write) down the important numbers in class. 14. The ______ (four) day of a week is Wednesday in western countries. 15. He ______ (not make) any mistakes in the last math exam. 三、单项选择。 ( )1. -______ is the population of your city? -It is about 3 million. A. How many B. How much C. What D. How ( )2. If you ______ 8 from 12, you will get 4. A. add B. subtract C. multiply D. divide ( )3. There are ______ students in our grade. A. two hundred B. two hundreds C. two hundred of D. two hundreds of ( )4. -How often do you have a math test? -______. A. Twice a month B. For two weeks C. In three days D. Two months ( )5. The abacus was invented ______ ancient China hundreds of years ago. A. on B. in C. at D. for ( )6. -______ does it take you to finish your math homework every day? -About one hour. A. How far B. How often C. How long D. How soon ( )7. Let's ______ the numbers and see which group gets the right answer first. A. count B. counts C. counting D. to count ( )8. The number of the teachers in our school ______ over 200. A. be B. is C. are D. am ( )9. -Can you help me work out this math problem? -______. A. You're welcome B. No problem C. Good idea D. See you ( )10. -______ do you use the calculator for? -I use it to calculate the costs of our trip. A. What B. Why C. How D. When ( )11. I was born ______ October 5th, 2010. A. in B. on C. at D. for ( )12. My mother always tells me ______ careful with numbers when doing homework. A. be B. being C. to be D. been ( )13. He is a careful boy, so he ______ makes mistakes in his homework. A. always B. often C. usually D. seldom ( )14. -Our class won the first prize in the math competition! -______ A. Good luck! B. Congratulations! C. I'm sorry to hear that. D. You're kidding. ( )15. The old man ______ 2 hours playing chess with his friends every afternoon. A. spend B. spends C. spending D. to spend 四、根据汉语提示完成句子，每空一词。 1. 你能算出这道数学题的答案吗？ Can you ____ ____ the answer to this math problem? 2. 十除以二等于五。 Ten ____ ____ two equals five. 3. 我们学校的学生数量超过了3000。 ____ ____ ______ the students in our school is over 3000. 4. 至少有一百人参加了这次数学讲座。 There are ____ ____ 100 people attending the math speech. 5. 你会用算盘吗？ ____ you know how ____ use an abacus? 6. 古代人用很多不同的方式计数。 Ancient people counted numbers ____ many ____ ways. 7. 他每天花半个小时练习心算。 He ____ half an hour ____ mental arithmetic every day. 8. 电脑是20世纪最重要的发明之一。 The computer is one of the most important ____ in the ____ century. 9. 我们正在检查答案确保它们是对的。 We are ____ the answers to ____ they are correct. 10. 数字在我们的日常生活中非常重要。 Numbers are very important in our ____ ____. 五、句型转换。 1. The population of this town is about 50 thousand. (对画线部分提问) ____ ____ the population of this town? 2. My brother uses the calculator to work out the problems every day. (改为否定句) My brother ____ ____ the calculator to work out the problems every day. 3. There are over 2,000 books in my study. (对画线部分提问) ____ ____ books are there in your study? 4. He usually spends two hours doing his math homework every day. (改为一般疑问句) ____ he usually ____ two hours doing his math homework every day? 5. It takes her 15 minutes to count these numbers. (改为同义句) She ____ 15 minutes ____ these numbers. 六、语法填空 阅读短文，在空白处填入一个适当的单词或括号内单词的正确形式。 Do you know some amazing facts about numbers? Let me tell you some. First, the number of bees in a hive can be as high as 80,000. They use numbers ____1____ (find) the right way home. They can tell others the distance and direction according ____2____ the position of the sun. Second, it is ____3____ (amaze) that a tree can grow more than 2 million leaves in its lifetime. You may think it is impossible, ____4____ it is true. Scientists ____5____ (count) the leaves of a big apple tree and got the result last year. Third, the abacus is one of the oldest ____6____ (invent) for calculating in China. People ____7____ (use) it for thousands of years. Even now many people still practice ____8____ (use) it to improve their memory. Numbers are everywhere in our life. ____9____ we pay attention, we can find many interesting facts about them. Learning about numbers not only improves our math skills ____10____ also makes our life more interesting. 参考答案 一、根据句意、汉语或首字母提示写出单词。 1. average 2. add 3. thousand 4. calculate 5. multiply 6. whole 7. odd 8. mistake 9. system 10. Subtract 11. amazing 12. divided 13. number 14. especially 15. check 16. invention 17. accurate 18. decimal 19. billion 20. development 二、根据句意，用括号内所给词的适当形式填空。 1. amazing 2. calculations 3. counting 4. accurate 5. invention 6. is adding 7. checks 8. to use 9. to work 10. development 11. least 12. students 13. writing 14. fourth 15. didn't make 三、单项选择。 1~5. CBAAB 6~10. CABBA 11~15. BCDBB 四、根据汉语提示完成句子，每空一词。 1. work out 2. divided by 3. The number of 4. at least 5. Do; to 6. in; different 7. spends; practicing 8. inventions; 20th/twentieth 9. checking; ensure 10. daily life 五、句型转换。 1. What is 2. doesn't use 3. How many 4. Does; spend 5. spends; counting 六、语法填空 1. to find 2. to 3. amazing 4. but 5. counted 6. inventions 7. have used 8. using 9. If 10. but 学科网（北京）股份有限公司 $