Unit 4 Amazing Plants and Animals单元卷（含答案）人教版（2024）八年级英语上册

人教版 2025-2026 学年八年级上册 Unit 4 Amazing Plants and Animals单元 满分：100 分 时间：90 分钟 一、单项选择（10 小题，每题 1 分，共 10 分） （ ）1. —Which animal is the fastest land runner in the world —The , it can run up to 112 km/h. A. redwood B. cheetah C. bamboo D. moss （ ）2. The plant _____ grows in karst areas has special leaves to store water. A. who B. what C. which D. whose （ ）3. —Why do pandas mainly eat bamboo —Because it’s easy for them _____ and digest. A. find B. to find C. finding D. found （ ）4. Redwoods are amazing trees _____ can live for over 2,000 years. A. that B. who C. whom D. where （ ）5. — do giraffes have long necks —To reach the leaves on tall trees. A. When B. Where C. Why D. How （ ）6. We _____ destroy the habitats of wild animals. They need safe homes to survive. A. mustn’t B. can’t C. needn’t D. shouldn’t （ ）7. The little bird _____ is sitting on the branch is a rare species in our city. A. what B. that C. whom D. where （ ）8. —How does the cactus live in the desert —It _____ store water in its thick stem. A. can B. must C. should D. need （ ）9. My cousin is interested in _____ about amazing plants around the world. A. learn B. learns C. learned D. learning （ ）10. —Let’s join the wildlife protection club! —_____! I want to know more about cheetahs. A. Sorry B. That’s boring C. Sounds great D. Never mind 二、完形填空（2 篇，共 20 分） A 篇（10 小题，每题 1 分） The Magic of Big Bract Hemiboea In the karst forests of Guizhou, there’s a special plant called Big Bract Hemiboea . It’s small, only half a meter tall, but it has amazing survival skills. The plant 11_____ in rock crevices where water is scarce. To protect its young buds, it grows two special bracts that join together to form a “water ball”. The “water ball” 12_____ nearly 20ml of liquid, like “amniotic fluid” for the buds. This liquid keeps the buds cool on hot days—even 3.6℃ cooler than the air 13_____ ! It also provides nutrients like calcium and magnesium. When drought comes, the liquid flows back to the leaves 14_____ the plant from drying out. Scientists say this special structure 15_____ independently many times in nature. It shows how plants 16_____ to harsh environments. We should protect these amazing plants, because they 17_____ a lot about nature’s wisdom. If we destroy their habitats, we 18_____ lose this valuable knowledge forever. Let’s promise 19_____ these special plants and 20 _____them grow in peace. （ ）11. A. grows B. grow C. grew D. growing （ ）12. A. hold B. holds C. held D. holding （ ）13. A. outside B. inside C. beside D. near （ ）14. A. protect B. protecting C. to protect D. protected （ ）15. A. evolve B. evolved C. evolves D. evolving （ ）16. A. adapt B. adopt C. change D. turn （ ）17. A. teach B. learn C. give D. show （ ）18. A. must B. should C. will D. can （ ）19. A. save B. saving C. to save D. saved （ ）20. A. let B. make C. help D. have B 篇（10 小题，每题 1 分） Jaguars a ... ...