Unit 1 Look it up单元基础练习 2026-2027学年沪教版英语八年级上册

Unit 1 Look it up!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. You can look up the new word in the e______. 2. ______ (恐龙) lived on Earth long before human beings. 3. Scientists found some f______ of ancient animals in the rocks. 4. The ______ (人类) race has developed for thousands of years. 5. The little girl was b______ with a beautiful voice. 6. My grandparents enjoy living in the ______ (乡村) because the air is fresh. 7. He is a man of great i______, so he can solve all kinds of difficult problems. 8. Paper is one of the four great ______ (发明) of ancient China. 9. If you don't know the meaning of the phrase, you can look it u______ online. 10. P______ it will rain tomorrow, so we have to put off our picnic. 11. He has the a______ to finish the work on time by himself. 12. Nobody knows if aliens (外星人) e______ in the universe. 13. S______, a car ran out of the corner and almost hit the little boy. 14. N______ knows how the ancient people built the Great Pyramid without modern machines. 15. I bought a new n______ to write down important knowledge in class. 16. The kind of rare bird ____ ____ (灭绝) 50 years ago. 17. We can learn a lot about a______ history from the encyclopaedia. 18. You can ____ ____ (查阅) the information about the event on the Internet. 19. There are m______ than 100 kinds of flowers in this park. 20. We need to ____ ____ (查明) who broke the window of the classroom. 二、根据句意，用括号内所给词的适当形式填空。 1. Dinosaurs ______ (exist) on Earth over 65 million years ago. 2. The book introduces many great ______ (invent) in modern society. 3. He is one of the most ______ (intelligence) students in our school. 4. My little sister is able ______ (play) the piano very well. 5. Nobody ______ (know) when we will have the sports meeting. 6. Look! The scientists ______ (dig) for fossils in the mountain. 7. It is very useful for us ______ (learn) how to use an encyclopaedia. 8. His ______ (able) in playing chess made him famous in the city. 9. We can get a lot of ______ (information) about space from this book. 10. The story about the ancient emperor is very ______ (amaze). 11. The teacher told us some ______ (history) stories about the Tang Dynasty. 12. There are three ______ (thousand) students in our new school. 13. The strange fish ______ (die) out because of water pollution last year. 14. ______ (sudden), the lights went out and the room became completely dark. 15. The ______ (science) are trying to find out the reason for dinosaurs' disappearance. 三、单项选择。 ( )1. -____ is this old encyclopaedia? -It's about 120 years old. A. How often B. How old C. How long D. How much ( )2. If you don't know the meaning of the new word, you can ____ in the dictionary. A. look it up B. look for it C. put it up D. give it up ( )3. Dinosaurs lived on Earth ____ than 60 million years before human beings. A. many B. much C. more D. most ( )4. ____ knows where the lost key is, so we have to wait for our parents to come back. A. Everybody B. Somebody C. Anybody D. Nobody ( )5. The small city is famous ____ its ancient cultural relics (文物). A. as B. for C. with D. to ( )6. There are ____ trees planted on the hill near our village. A. two thousand B. two thousands C. two thousand of D. two thousands of ( )7. My father was born ____ October 10th, 1980. A. in B. on C. at D. for ( )8. -Let's go to the natural museum to see the dinosaur fossils this Saturday. -____ A. You're welcome. B. Sounds great! C. That's all right. D. Good luck. ( )9. The old man has a very good memory, he can ____ remember what happened when he was 5 years old. A. even B. only C. just D. still ( )10. ____, a strong wind blew and blew the hat off my head. A. Sudden B. Suddenly C. Luck D. Lucky ( )11. We need to ____ why the machine doesn't work. A. find out B. look for C. give out D. put out ( )12. My teacher tells me ____ more books to improve my reading ability. A. read B. to read C. reading D. reads ( )13. The ancient animals ____ suddenly because of the climate change. A. die out B. died out C. die away D. died away ( )14. I want to buy a new encyclopaedia ____ I can learn more about the natural world. A. so B. because C. but D. or ( )15. The little boy is very clever, he has the ____ to work out difficult math problems quickly. A. able B. ability C. intelligent D. intelligence 四、根据汉语提示完成句子，每空一词。 1. 恐龙在数百万年前就灭绝了。 Dinosaurs ____ ____ millions of years ago. 2. 我们学校有超过两千名学生。 There are ____ ____ two thousand students in our school. 3. 他出生的时候，他家住在一个小乡村。 When he ____ ____, his family lived in a small ____. 4. 没有人知道恐龙为什么突然消失。 ____ ____ why dinosaurs disappeared suddenly. 5. 你能帮我查明下一班火车的时间吗？ Can you help me ____ ____ the time of the next train? 6. 或许我们明天可以去博物馆看恐龙化石。 ____ we can go to the museum to see dinosaur ____ tomorrow. 7. 我妹妹天生有跳舞的能力。 My sister is ____ ____ the ____ of dancing. 8. 我们可以从这本百科全书里了解很多关于古人类的知识。 We can learn a lot about ____ ____ from this encyclopaedia. 9. 突然，他想起他把笔记本落在教室里了。 ____, he remembered that he left his ____ in the classroom. 10. 这些古代发明对世界有很大的影响。 These ancient ____ have a great influence on the world. 五、句型转换。 1. There are more than 4000 books in our class bookshelf. (对画线部分提问) ____ ____ books are there in your class bookshelf? 2. Dinosaurs lived on Earth for over 160 million years. (改为否定句) Dinosaurs ____ ____ on Earth for over 160 million years. 3. I can look up new words in the electronic dictionary. (对画线部分提问) ____ ____ you look up new words? 4. Nobody knows the answer to this question about ancient history. (改为一般疑问句) ____ ____ know the answer to this question about ancient history? 5. This encyclopaedia is very helpful for middle school students. (改为复数形式) The ____ ____ very helpful for middle school students. 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。 Last week, I read an interesting article about dinosaurs in an 1. ____ (encyclopaedia). Dinosaurs were the largest animals on Earth at that time, they 2. ____ (exist) more than 60 million years before humans. Some dinosaurs were as small as chickens, 3. ____ others were as big as ten elephants. 4. ____ knows why dinosaurs died out suddenly. Some scientists say it was 5. ____ a large stone from space hit the Earth and changed the climate greatly. Now we can only see 6. ____ (they) fossils in the museum to know about them. I also read some introductions of ancient Chinese inventions in the book. The ancient Chinese people had great 7. ____ (intelligent) and made many amazing things that even surprise modern people. I often look 8. ____ useful information in this book when I meet problems in my study. It can help me find out the answers 9. ____ (quick). I think it is 10. ____ very useful book for all students. 参考答案 一、根据句意、汉语或首字母提示写出单词。 1. encyclopaedia 2. Dinosaurs 3. fossils 4. human 5. born 6. countryside 7. intelligence 8. inventions 9. up 10. Perhaps 11. ability 12. exist 13. Suddenly 14. Nobody 15. notebook 16. died out 17. ancient 18. look up 19. more 20. find out 二、根据句意，用括号内所给词的适当形式填空。 1. existed 2. inventions 3. intelligent 4. to play 5. knows 6. are digging 7. to learn 8. ability 9. information 10. amazing 11. historical 12. thousand 13. died 14. Suddenly 15. scientists 三、单项选择。 1~5. BACDB 6~10. ABBAB 11~15. ABBAB 四、根据汉语提示完成句子，每空一词。 1. died out 2. more than 3. was born; countryside 4. Nobody knows 5. find out 6. Perhaps; fossils 7. born with; ability 8. ancient humans 9. Suddenly; notebook 10. inventions 五、句型转换。 1. How many 2. didn't live 3. Where can 4. Does anybody 5. encyclopaedias are 六、语法填空 1. encyclopaedia 2. existed 3. while/but 4. Nobody 5. because 6. their 7. intelligence 8. up 9. quickly 10. a 学科网（北京）股份有限公司 $