Unit 5单元练习题 2025-2026学年外研版英语八年级下册

外研版初中英语八年级下册U5单元练习题 (考试时间90分钟，满分120分) 一、阅读理解（共20小题，每题1分，满分20分） 阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。 A Imagine a tiny insect trapped in a yellow, transparent stone for millions of years. When you hold it in your hand, you can clearly see its small legs and thin wings, just as if it fell asleep yesterday. This amazing stone is called amber, and it is like a time machine that takes us back to the distant past. For centuries, people thought dinosaurs were covered with rough scales, just like giant lizards. But a special piece of amber found in Southeast Asia changed this idea completely. Inside the amber was the tail of a small dinosaur, and it was covered with soft, colourful feathers! This discovery surprised scientists all over the world. It proved that some dinosaurs had feathers long before birds appeared on Earth. 1. What is the amber described in the passage like? A. A rough stone with no special features B. A yellow and transparent time machine-like stone C. A black stone that can only keep large animals D. A soft stone that is easy to break 2. What did people used to think about dinosaurs' appearance? A. They had soft feathers all over their bodies B. They looked like small birds with colourful wings C. They were covered with rough scales like giant lizards D. They had no legs or wings at all 3. What was found in the amber from Southeast Asia? A. A whole dinosaur's body with feathers B. A bird's wing that lived millions of years ago C. A small dinosaur's tail covered with feathers D. A lizard's body trapped for a long time 4. What did the discovery of the amber prove? A. Dinosaurs lived on Earth only a few years ago B. Some dinosaurs had feathers long before birds existed C. Birds evolved from giant lizards instead of dinosaurs D. All dinosaurs were small and light enough to fly 5. What is the best title for this passage? A. A Surprising Discovery in Amber B. Different Kinds of Beautiful Amber C. How to Collect Amber from Around the World D. The History of Giant Lizards and Dinosaurs B Amber is not just a beautiful stone; it is also a treasure chest of ancient secrets. It can keep plants, insects and even small animals perfectly for millions of years. Scientists have found all kinds of amazing things in amber from different parts of the world. In a piece of amber from Northern Europe, there is a small flower that no longer grows in that area. By studying this flower, scientists learned that the climate of Northern Europe was much warmer 35 million years ago. In an African amber, researchers discovered 13 ants that belonged to a completely new species. Before this discovery, people thought ants first appeared in the northern half of the Earth. But these African ants proved that ants might have a much longer and more interesting history. So far, amber has helped scientists discover over 300 unknown species. Every new piece of amber may hold a new surprise. It is like a window to the past, letting us see how life on Earth has changed over time. 6. What can amber do for millions of years? A. Change the climate of different areas B. Keep ancient plants and animals perfectly C. Turn small insects into new species D. Make the area where it is found warmer 7. What was found in the amber from Northern Europe? A. A new species of ant B. A small flower that no longer grows there C. A dinosaur's feather with bright colours D. A bird that lived 35 million years ago 8. What did the African amber ants prove? A. Ants first appeared in Northern Europe B. Ants have a shorter history than people thought C. The old idea about the origin of ants might be wrong D. There are no ants living in the northern half of the Earth now 9. How many unknown species has amber helped discover? A. More than 300 B. Exactly 13 C. About 35 million D. Less than 100 10. Why is amber called a window to the past? A. Because it can let us see how life on Earth has changed B. Because it is as beautiful as a window with colourful glass C. Because it was formed from ancient windows millions of years ago D. Because it can help us see the future of life on Earth C Nature is full of amazing plants, and one person spent his whole life studying them. His name was Wang Wencai. Born in the warm days of early summer when flowers were blooming, Wang developed a love for plants at a very young age. This love turned into a lifelong career that lasted over 70 years. He travelled all across China, from wild mountains to thick forests, to explore the country's rich plant world. Professor Wang worked extremely hard throughout his life. He discovered and named as many as 1,370 new plant species. Field work was not easy. Once, while doing research in Yunnan, he got a serious illness and almost lost his life. But this didn't stop him. When he was 83 years old, he lost sight in his right eye. He didn't tell anyone about it. Instead, he picked up a magnifier and continued his research for another 10 years. His perseverance moved everyone around him. 11. When was Wang Wencai born? A. In the cold days of winter B. In the flowering season of early summer C. In the harvest time of autumn D. In the windy days of spring 12. How long did Wang Wencai study plants in China? A. For about 10 years B. For over 70 years C. For exactly 83 years D. For 96 years 13. How many new plant species did Wang Wencai discover and name? A. Over 300 B. About 1,370 C. Less than 100 D. Exactly 96 14. What happened to Wang Wencai when he was doing research in Yunnan? A. He found a new species of ant in amber B. He lost sight in right eye completely C. He got a serious illness and nearly died D. He won the First Class Award of National Natural Science Awards 15. What did Wang Wencai do after losing sight in his right eye? A. He stopped his research and stayed at home B. He told everyone about his problem and asked for help C. He used a magnifier and kept doing research for 10 more years D. He gave all his collection of plants to the university D Although Professor Wang Wencai achieved great success in his field, he never cared about personal honour or wealth. He won the First Class Award of National Natural Science Awards twice, but he hardly ever talked about it. In his opinion, these awards belonged to his whole team, not just him. He always said he was just doing his job. Wang was a very modest person. He never showed off his achievements. For a long time, even his own granddaughter didn't know that her grandfather was such a famous scientist. He lived a simple life and spent all his time and energy on plant research. Professor Wang passed away at the age of 96, when autumn leaves began to fall. At his farewell ceremony, there were no sad songs. Instead, people played Beethoven's Pastoral Symphony, his favourite music. The soft melody seemed to tell everyone about his lifelong love for nature and his endless exploration of the plant world. 16. What did Wang Wencai think of the national awards he won? A. They were his greatest personal achievements B. They should be given to his whole team C. They were not important at all D. They could bring him a lot of wealth 17. Who didn't know Wang Wencai was a famous scientist for a long time? A. His students and colleagues B. The people who gave him the awards C. His own granddaughter D. The scientists all over the world 18. What kind of life did Wang Wencai live? A. A rich and colourful life full of honour B. A simple life focused on plant research C. A life full of adventures in different countries D. A life that was all about winning awards 19. How old was Wang Wencai when he passed away? A. 70 years old B. 83 years old C. 96 years old D. 100 years old 20. What music was played at Wang Wencai's farewell ceremony? A. A sad song about his death B. Beethoven's Pastoral Symphony C. A popular song from his childhood D. A piece of music he wrote himself 二、短文还原（共5小题，每题2分，满分10分） 阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Some things in nature can help us learn about the past, while some people devote their lives to exploring nature's secrets. 21 . It can keep ancient plants and animals for millions of years, helping scientists discover new species and correct old ideas. Amber has brought many surprises to scientists. 22. The discovery of a feathered dinosaur tail in Southeast Asian amber changed people's idea about dinosaurs' appearance. Professor Wang Wencai is a person who dedicated his life to studying plants. 23. He travelled across China and discovered 1,370 new plant species. Wang Wencai faced many difficulties in his research. 24. Even when he lost sight in one eye at 83, he continued working with a magnifier for 10 more years. Despite his great achievements, Wang was very modest. 25. His love for nature and perseverance set a good example for all of us. A. He never cared about personal honour or wealth B. Amber is one of these amazing gifts from nature C. He was born in a small village with no plants at all D. He once got seriously ill during field work in Yunnan E. He spent over 70 years exploring China's plant world F. Amber can only be found in Southeast Asia and Africa G. Many scientists don't think amber is useful for research 三、综合填空（共20小题，每题1分，满分20分） A 从方框中选择恰当的单词，并用其适当形式填空。每个单词限用一次，有一个多余选项。 amber species discovery perseverance honour exploration magnifier climate secret career noise 26. is a precious stone that can keep ancient things perfectly. It has helped scientists make many important 27 , including over 300 unknown 28 . It also helps us understand how the ancient 29 was different from today. Wang Wencai chose plant research as his lifelong 30 . He spent over 70 years on the 31 of China's plant world. His 32 helped him overcome many difficulties. When he lost sight in one eye, he used a 33 to continue working. Though he won great 34 , he remained modest. He left us the 35 of loving nature and sticking to our dreams. B 从方框中选择恰当的动词，并用其适当形式填空。每个单词限用一次，有一个多余选项。 trap discover change explore devote continue achieve pass mention bloom promise A small dinosaur's tail was 36 in amber for millions of years. This finding 37 people's old idea about dinosaurs. Scientists 38 many new species with the help of amber. Wang Wencai 39 his whole life to studying plants. He 40 1,370 new plant species and never 41 his own achievements. Even when he was ill and lost sight in one eye, he 42 his research work. He 43 great success in his field. Wang 44 away at 96, but his spirit of 45 nature will always live on. 四、阅读表达（共5小题，每题2分，满分10分） 阅读下面短文，根据要求完成下列各题。 Amber is a precious stone that can keep ancient plants and animals perfectly. It has helped scientists discover over 300 unknown species and correct old ideas, such as proving some dinosaurs had feathers. Wang Wencai was a great plant scientist who devoted over 70 years to exploring China's plants. He discovered 1,370 new species, faced many difficulties including illness and losing sight in one eye, but still continued his research. Though he won national awards twice, he was modest and thought the awards belonged to his team. 46. What can amber keep perfectly for millions of years? 47. How many unknown species has amber helped discover? 48. How long did Wang Wencai devote to studying China's plants? 49. What difficulties did Wang Wencai face in his research? 50. What did Wang Wencai think of the national awards he won? 五、书面表达（满分20分） 在人类探索自然的过程中，有许多像王文采这样默默奉献的科学家。请你以 A Great Scientist I Admire 为题，写一篇英语短文。 要求：1. 内容包括科学家的贡献、品质和你的感受；2. 词数80-100；3. 文中不得出现真实的人名、校名。 参考答案 一、阅读理解（1-20） 1-5 B C C B A 6-10 B B C A A 11-15 B B B C C 16-20 B C B C B 二、短文还原（21-25） 21.B 22.F 23.E 24.D 25.A 三、综合填空 A（非动词11选10）（26-35） 26.Amber 27.discoveries 28.species 29.climate 30.career 31.exploration 32.perseverance 33.magnifier 34.honour 35.secret B（动词11选10）（36-45） 36.trapped 37.changed 38.discover 39.devoted 40.discovered 41.mentioned 42.continued 43.achieved 44.passed 45.exploring 四、阅读表达（46-50） 46. It can keep ancient plants and animals perfectly for millions of years. 47. It has helped discover more than 300 unknown species. 48. He devoted over 70 years to studying China's plants. 49. He got seriously ill during field work and lost sight in his right eye at 83. 50. He thought the awards belonged to his whole team. 五、书面表达 参考范文 A Great Scientist I Admire The great scientist I admire most is Wang Wencai. He devoted over 70 years to studying China's plants and discovered 1,370 new species. He faced many difficulties but never gave up his research. Wang was very modest and cared little about honour. His perseverance and love for nature move me deeply. I want to learn from him and stick to my dreams bravely. 学科网（北京）股份有限公司 $