Unit 2 单元诊断自查 2026-2027学年沪教版英语八年级上册

Unit 2 综合检测卷 Ⅰ.阅读理解（共12小题，计36分） A Last week, a few students in our school made a survey about people's free time. The following diagrams (图表) show the results of it. Diagram 1: Hours for people of different ages using the internet in a month Diagram 2: The numbers of people going to the reading room on different days Diagram 2: TV programmes people like best 1. People aged ____ spend the most time using the internet in a month. A. 7‑16 B. 17‑30 C. 31‑45 D. over 55 2. On which day do the most people go to the reading room? A. On Tuesday B. On Wednesday C. On Thursday D. On Friday ( )3. What kind of TV programme do people like best? A. News. B. Sports programmes. C. Music programmes. D. Cartoons. ( )4. Which of the following is TRUE according to the diagrams? A. People in the survey are younger than 12. B. People always use the internet on Fridays. C. People like going to the reading‑room at weekends. D. 18 per cent of the people like watching sports programmes. B The Sahara Desert is the largest hot desert in the world. It is about 9,320,000 square kilometres in size. This is almost the size of America. The desert covers many countries in the north of Africa. The Nile runs through the Sahara Desert all year round. There are also other rivers running through it seasonally(季节性地). The desert includes huge sand dunes (沙丘) and dune fields. Some of the sand dunes are so huge that they can even be over 152 metres high. But there are also other amazing landforms(地形) in different parts of the desert. It is very hot and dry in the Sahara Desert. The temperature there is usually 30℃. However, during the hottest months, the temperature can go over 50℃. Because of the high temperatures and poor conditions of the desert, only a few plants live here. They also play a role in the number of animals. In the driest part of the desert, there are only 70 different kinds of animals. Today the Sahara's population is around four million. They move from place to place across the desert. Because of this there are different cultures and languages in this area. ( )5. From the first paragraph we can know that the Sahara Desert ____. A. is totally the same as America in size B. is about 9,320,000 square kilometres in size C. is almost as big as China D. covers countries in the south of Africa ( )6. What does the underlined word “They” refer to? A. High temperatures and poor conditions. B. Some plants and animals. C. Huge dunes and dune fields. D. Languages and cultures. ( )7. What can we know about the Sahara Desert? A. Its size. B. Its landforms. C. Its temperatures. D. Its future. ( )8.Where can we find the passage most probably? A. In a storybook. B. In a sports magazine. C. In a geography book. D. In a health newspaper. C In our modern world, numbers are more important than ever. We use them not just for counting, but also as codes to organize information. From the time we wake up to the time we go to sleep, numbers guide our daily motions and decisions. Think about your daily life. You have a student ID number that the school uses to identify you. Your family has a phone number so that people can call you. When you buy something online, you need to enter your address and a special number called a postal code(邮政编码). This code makes sure that your package reaches the correct city and neighbourhood quickly. Numbers also help us understand the world. Scientists use numbers to record data from experiments (实验), which helps them discover new facts about nature. Doctors use numbers like blood pressure and temperature to check a person's health. Weather reporters use numbers to tell us the temperature and the chance of rain, so we can plan our day and stay safe. However, we should also be careful with numbers. Some people use numbers to create passwords for their computers and bank accounts. These numbers must be kept secret to protect personal information. If others learn these codes, they might know your personal data or even steal money. Therefore, we should choose strong passwords and never share them with strangers. In short, numbers play many different roles in our lives. They help us communicate, learn, stay healthy, and keep things secure. Without numbers, our world would be much more disorganized. They are truly the secret language of modern society. ( )9. What is the main purpose of the first paragraph? A. To give examples of counting. B. To introduce the topic of numbers in modern life. C. To explain how to use codes. D. To talk about online shopping. ( )10. According to the passage, why is a student ID number used? A. To identify the student. B. To call the student. C. To check the student's health. D. To record the weather. ( )11. Which of the following is NOT mentioned as a use of numbers? A. In scientific experiments. B. In medical checks. C. In weather reports. D. In cooking food. ( )12. What is the best title for this passage? A. The History of Numbers B. How to Remember Numbers C. Numbers in Our Daily Life D. The Importance of Zero Ⅱ.阅读还原（共4小题，计12分） 阅读短文，从方框内所给的选项中选出可以填入空白处的最佳选项，其中有一个多余的选项。（每个选项限用一次） Before the invention of written numbers, people used many different ways to count things. 13.________ However, they could only count small numbers in this way. After that, they began to make small marks on sticks and bones. 14.________ Then people began to use tokens（代币）made of clay or small stones. 15.________ They often put the tokens on pieces of string so that they could carry them around easily. This developed into tools like the abacus. Finally, people began to develop systems of written marks to show different numbers. 16.________ A. We are still using this system today. B. This helped them count bigger numbers. C. At first, people used their fingers, and even their toes. D. To count bigger numbers, they even invented a new system. E. They used small marks to count things like the days of the month, the amount of food and the number of animals they had. Ⅲ.完形填空(共10小题,计20分) Pi (π) is a very important number in Maths. It is special because it goes on forever without repeating. Calculating pi has many meanings. First, it helps us test 17 . The more digits (数位) of pi a computer can calculate, the better it is. This also helps 18. if there are problems in the computer and fix them. Pi is also very useful in science and engineering. In the field of 19 , scientists use pi to study planets and stars. The value of pi is helpful in understanding how planets move. In everyday life, pi is used in the GPS 20. to help us find our way. In Maths, pi helps us understand more about numbers. Mathematicians always try to find the 21.____ of the digits of pi. But it is hard to find the answer. Pi is also important in keeping our information 22 . Because pi is so long and random, it can be used to create 23 . passwords. This helps protect our personal data. Finally, calculating pi is a 24.____ for humans. It tests our intelligence and helps us learn more about Maths. Some people even try to 25.____ as many digits of pi as they can. This is not only fun but also a way to exercise our brains. In short, calculating pi is important. It is a number that helps us understand the 26.____ better. ( )17. A. computers B. houses C. circles D. brains ( )18. A. sell B. break C. check D. reduce ( )19. A. art B. sports C. space D. medicine ( )20. A. symbol B. system C. address D. prize ( )21. A. law B. colour C. shape D. sound ( )22. A. risky B. safe C. public D. hidden ( )23. A. weak B. short C. common D. strong ( )24. A. job B. game C. hobby D. challenge ( )25. A. copy B. forget C. remember D. read ( )26. A. sky B. world C. school D. history Ⅳ.语篇填空(共10小题，计20分) 阅读短文，在空白处填入一个适当的单词或用括号内所给词的正确形式填空，使短文通顺、连贯。 The Chinese abacus is known as suanpan. It is 27.________ important part of traditional Chinese culture and it is known as China's 28.________ (five) great invention. People in the past 29.________ (use) the abacus to calculate quickly so it could be called “the 30.________ (old) computer in the world”. To use the abacus correctly, you may 31.________ (wonder) something important about it. It usually has more than seven rods (杆子). There are two beads (算珠) on each rod in the upper deck (层) and five beads each in the bottom. The beads are usually round and made 32.____ wood. We count the beads by 33.________ (move) them up or down towards the beam (横梁). If you move them towards the beam, you count their value34________ , if you move them away the beam, you can't 35.________ (count) their value. The abacus can be reset (重置) to the starting position quickly, so then you can start to count again easily. 36.________ (current), the use of the abacus is still taught in some primary schools as part of Maths. Ⅴ.书面表达(12分) 37.［2026广东深圳月考］假如你是来自深圳的八年级学生李华，你的英国笔友Tom对中国的“数字文化”很感兴趣。请你根据以下提示内容给他写一封邮件，介绍中国的“数字文化”，使他对中国的数字有更多的理解。 提示: (1)说明中国人喜爱的数字8及其象征意义； (2)说明中国人回避的数字4及其原因； (3)数字在礼仪中的运用，如送礼常用双数的物品来表示祝福。 参考词汇:odd number 单数；even number 偶数 要求: (1)80词左右(格式已给出，不计入总词数)； (2)文中不得出现真实姓名及学校名称； (3)可适当增加细节，以使语句通顺、条理清楚、意义连贯； (4)书写规范，卷面整洁。 Dear Tom, ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Best wishes, Li Hua 1 学科网（北京）股份有限公司 $