登录二一教育在线组卷平台 助您教考全无忧 2025-2026学年八年级上册英语单元测试（浙江省卷专用） Unit 4 Digital life·培优卷 学校:_____班级：_____姓名：_____分数：_____ （时间：90分钟，满分：100分） 一、阅读理解 阅读短文，回答问题 Do you know the numbers 0—9 well They are numbers in Arabic numerals. People use them to mark numbers now. But it's not the only number system that people use. About 2, 500 years ago, people in Rome used their bands to count. In Roman numerals, two fingers means 2, three fingers means 3, you can keep your four fingers close on one side and your thumb on the other side. If you want to say five, you can keep your four fingers close on one side and your thumb on the other side. Make each of your hands be five, then you'll have ten. So in Rome, the numbers are ‘I, Ⅱ, Ⅲ, IV, V, VI, VⅡ, VⅢ, IX, X' " Also, "L" means fifty, "D" means five hundred and "M" means one thousand. But there is no zero in Rome numerals. Today, few people use them because they are difficult to write and count. But we can still see them on some watches and clocks. Today, most people use the Arabic numerals. They are easy to remember and write. They help people to count things every day. In fact, Indians first created and used the Arabic numerals. In the late 8th century, people in Arabic countries learned about them. Then the Arabic people took them into Europe. So people in Europe called them Arabic numerals. Today, people around the world use Arabic numerals and they help a lot. 1．Which of the following means five in Roman numerals A．5. B．Ⅳ. C．Ⅴ. D．Ⅹ. 2．What does the underlined word "them" in Paragraph 2 mean A．Arabic numerals. B．Watches and clocks. C．Zero. D．Roman numerals. 3．What do we know about Arabic numerals A．People in Rome didn't use them. B．Arabic people taught the Indians about them. C．Only Arabic people use them today. D．"0" means "zero" in Arabic numerals. 4．In what order did the following things happen a. Arabic people learned about Arabic numerals. b. Indians created Arabic numerals. c. Arabic people took Arabic numerals into Europe. d. People all over the world use Arabic numerals. A．b—c—a—d B．b—a—c—d C．d—b—a—c D．d—c—b—a 阅读短文，回答问题 Everyone knows magic tricks are fun, but not enough people realize that math can be as well. Here is one of the most popular tricks to show you how amazing math can be. Firstly, pick a friend with good math skills. To play the trick, your friend needs to know how to add numbers and do subtraction (减法). Then, write down 1089 on a piece of paper without showing anyone. Thirdly, ask your friend to write down a number with three different digits (位数). Tell him not to show you the number. Make sure the three digits can not be the same. For example, he could pick 481. Next, let your friend write down the number backwards. For example, 481 backwards is 184. After that, make it into a subtraction problem. Now your friend has two numbers. Get him to subtract the smaller o ... ...
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