Unit 3基础检测卷2026-2027学年外研版英语八年级上册

外研版八年级上册Unit 3基础检测卷 满分：100分 考试时长：40分钟 第一部分 试题 一、单词拼写（每小题1分，共15分） 根据句意及给出的音标提示，写出完整正确的单词，使句子通顺完整。 1. We will visit a science ________ /feə/ next Friday. 2. This ________ /blɒk/ of wood can be used for 3-D printing. 3. This is an ________ /ˌɑːtɪˈfɪʃl/ flower, not a real one. 4. The ________ /ˈprɪntə/ can make many small objects. 5. Who ________ /ɪnˈvent/ the first practical light bulb? 6. The box ________ /weɪz/ two ________ /ˈkɪləɡræmz/. 7. Could you ________ /lend/ me a hand with my model machine? 8. We hope to ________ /ɪmˈpruːv/ our new invention. 9. The machine can ________ /sens/ weak signals around it. 10. Don’t ________ /ˈtrʌbl/ him; he is busy solving a problem. 11. He is a ________ /ɪnˈventə/ with rich imagination. 12. His ________ /ˌkjuəriˈɒsəti/ drives him to do lots of tests. 13. We need ________ /ɪˌlekˈtrɪsəti/ to run all these machines. 14. The ________ /ˌekspləˈreɪʃn/ helps people make new achievements. 15. The ________ /ˌdɪveləpmənt/ of technology changes our everyday life. 二、单项选择（每小题2分，共30分） 从A、B、C、D四个选项中，选出可以填入句子空白处的最佳选项。 1. The new robot will be shown at the science ______ next month. A. fair B. block C. glue D. lightning 2. This ______ flower looks just like a real rose. A. everyday B. artificial C. blind D. creative 3. Could you ______ me your 3-D printer? I will return it soon. A. borrow B. lend C. cost D. allow 4. We try our best to ______ our working conditions. A. invent B. improve C. trouble D. warn 5. Who ______ the first telephone many years ago? A. invented B. invention C. inventor D. invents 6. The box ______ three kilograms. It is not easy to carry. A. weighs B. weighs of C. weights D. weight 7. My teacher ______ me to think of new ways to fix the machine. A. drives B. troubles C. fails D. senses 8. The school doesn’t ______ students to download games on school computers. A. warn B. allow C. fix D. solve 9. He is ______ and cannot see any objects around him. A. imaginative B. blind C. creative D. artificial 10. The scientist ______ us not to touch the dangerous machine. A. warns B. senses C. tests D. drives 11. ______! You have finished your invention successfully. A. Curiosity B. Achievements C. Congratulations D. Exploration 12. He is a ______ boy. He always comes up with new ideas. A. passive B. creative C. blind D. everyday 13. His strong ______ makes him keep trying new experiments. A. curiosity B. generation C. lightning D. detector 14. Many great ______ changed people’s everyday life. A. inventors B. inventions C. explorations D. developments 15. — Thank you for lending me a hand. — ________ A. Well done. B. Have fun. C. You’re welcome. D. Good luck. 三、完形填空（每小题2分，共20分） 阅读短文，掌握大意，从A、B、C、D中选出最佳答案。 At the science fair, we saw many great 1 . A young 2 showed his new machine. It can 3 weak signals and help 4 people “see” objects. He told us his 5 pushed him to keep testing. He wanted to 6 the machine and make it better. Many friends 7 him a hand one after another. During his exploration, he once 8 many times, but he never gave up. He said the fast 9 of technology offers more chances for the new 10 . 1. A. blocks B. inventions C. fair D. machines 2. A. inventor B. pioneer C. generation D. detector 3. A. sense B. warn C. solve D. fix 4. A. creative B. imaginative C. blind D. artificial 5. A. electricity B. curiosity C. lightning D. glue 6. A. improve B. trouble C. download D. cost 7. A. lent B. allowed C. drove D. tested 8. A. succeeded B. failed C. weighed D. invented 9. A. achievement B. exploration C. development D. condition 10. A. pioneer B. generation C. talent D. object 四、句型转换（每小题2分，共10分） 按照括号内要求改写句子，每空仅限一词。 1. He invented this 3-D printer last year.（改为一般疑问句） ________ he ________ this 3-D printer last year? 2. The box weighs two kilograms.（对划线部分提问） ________ ________ does the box weigh? 3. Could you lend me a hand?（同义转换） Could you ________ a hand ________ me? 4. We can improve our machine.（改为否定句） We ________ ________ our machine. 5. The girl is creative. She can make new objects.（合并句子） The girl is ________ ________ make new objects. 五、补全对话（每小题2分，共10分） 从方框内选择合适句子补全对话，有一项多余。A. What invention do you like best at the science fair? B. Can the machine help blind people sense objects? C. Who invented this useful machine? D. When will the science fair end? E. What difficulties did he meet during the test? F. Will they improve the machine later? A: Did you visit the science fair yesterday? B: Yes, it blew me away. 1 ________ A: I like the signal detector most. B: 2 ________ A: Yes. It can help blind people know things around them. B: 3 ________ A: A young inventor from our city. B: 4 ________ A: He failed many times, but his curiosity kept him going. B: 5 ________ A: Sure. They plan to make it lighter and cheaper. 六、汉译英（每小题3分，共15分） 根据中文意思写出通顺完整的英文句子。 1. 好奇心促使这位发明家不断改进他的机器。 ________________________________ 2. 你能搭把手帮我解决这个问题吗？ ________________________________ 3. 在科技展上，我们看到许多伟大的发明。 ________________________________ 4. 我们不允许在课上下载游戏。 ________________________________ 5. 技术的发展改变了人们的日常生活。 ________________________________ 第二部分 参考答案及考点解析 一、单词拼写（15分） 参考答案 1. fair 2. block 3. artificial 4. printer 5. invented 6. weighs; kilograms 7. lend 8. improve 9. sense 10. trouble 11. inventor 12. curiosity 13. electricity 14. exploration 15. development 考点解析：围绕科技发明、科学展览会、机器设备话题命题，音标和单词表完全匹配，词汇全部选自Unit 3单词清单，重点区分invent/invention/inventor、动词时态、名词复数、固定短语。 二、单项选择（30分） 1. 答案：A 考点：science fair 科技展览会。 2. 答案：B 考点：artificial adj. 人造的，人工的。 3. 答案：B 考点：lend v. 借出；lend sb. sth. 借给某人某物。 4. 答案：B 考点：improve v. 改善，改进。 5.答案：A 考点：invent v. 发明，过去式invented；时间many years ago使用一般过去时。 6. 答案：A 考点：weigh v. 重量是……，主语三单使用weighs。 7. 答案：A 考点：drive v. 促使，驱使。 8. 答案：B 考点：allow sb. to do sth. 允许某人做某事。 9. 答案：B 考点：blind adj. 失明的，盲的。 10. 答案：A 考点：warn sb. not to do sth. 警告某人不要做某事。 11. 答案：C 考点：congratulations 祝贺用语。 12. 答案：B 考点：creative adj. 有创造力的。 13. 答案：A 考点：curiosity n. 好奇心。 14. 答案：B 考点：invention n. 发明物；many后接复数。 15. 答案：C 考点：情景交际，回应感谢使用You’re welcome.。 三、完形填空（20分） 1. 答案：B 解析：inventions 发明物，科技展展出各类发明。 2. 答案：A 解析：inventor 发明家，对应后文创造机器的人。 3.答案：A 解析：sense v. 检测出，感知信号与物体。 4. 答案：C 解析：blind 失明的，这款机器服务盲人。 5. 答案：B 解析：curiosity 好奇心，推动人不断实验探索。 6. 答案：A 解析：improve 改进，优化机器性能。 7. 答案：A 解析：lend sb. a hand 固定短语，搭把手、帮忙。 8. 答案：B 解析：fail v. 失败，实验过程多次失败。 9. 答案：C 解析：development n. 发展，技术快速发展。 10. 答案：B 解析：generation n. 一代人，给新一代创造更多机会。 四、句型转换（10分） 1. 答案：Did; invent 解析：一般过去时一般疑问句，助动词Did提前，动词还原原形。 2. 答案：How much 解析：询问重量使用how much。 3. 答案：lend; to 解析：lend sb. sth. = lend sth. to sb. 4. 答案：can’t improve 解析：情态动词can变否定直接加not。 5. 答案：creative enough to 解析：adj.+enough to do 足够……能够做某事。 五、补全对话（10分） 1. 答案：A 2. 答案：B 3. 答案：C 4. 答案：E 5. 答案：F 多余选项：D 解析：对话围绕科技展览会、盲人辅助机器、发明家研发经历展开，问答逻辑自然通顺。 六、汉译英（15分） 1. 答案：Curiosity drives the inventor to keep improving his machine. 2. 答案：Could you lend me a hand to solve this problem? 3. 答案：We saw many great inventions at the science fair. 4. 答案：We are not allowed to download games in class. 5. 答案：The development of technology changes people’s everyday life. 学科网（北京）股份有限公司 $