Unit5 Under the waves 单元测试卷2026-2027学年外研版英语九年级下册

新外研版九年级下册 Unit5 Under the waves 单元测试卷 （笔试部分 满分：100分 考试时间：90分钟） 班级：________ 姓名：________ 得分：________ Ⅰ.单项选择（15小题，每小题1分，共15分） 从A、B、C、D四个选项中选出最佳选项。 ( )1. The ocean is ______ amazing world full of different kinds of sealiving creatures. A. a B. an C. the D. / ( )2. We all wonder ______ human activities have greatly changed the undersea world. A. that B. whether C. what D. how many ( )3. The pollution ______ harms sea life is mainly caused by human waste. A. who B. whose C. which D. whom ( )4. Many sea animals are ______ great danger because of rubbish in the sea. A. in B. on C. at D. for ( )5. ______ we know much about the sea, there are still many secrets under the waves. A. Although B. Because C. If D. Unless ( )6. Scientists expect ______ more facts about undersea life through new tools. A. discover B. discovering C. to discover D. discovered ( )7. Nobody knows ______ deep the sea can be in some unknown areas. A. what B. how C. which D. that ( )8. It is necessary for teenagers ______ the importance of protecting ocean environment. A. realize B. realizing C. to realize D. realized ( )9. Some waste products are thrown into the sea, ______ brings serious trouble to sea creatures. A. what B. that C. which D. who ( )10. We should stop people ______ pouring harmful things into the ocean. A. from B. of C. with D. for ( )11. People ______ care about the ocean are trying their best to reduce sea pollution. A. whom B. who C. whose D. which ( )12. The problem is ______ many people still fail to realize the ocean is in great danger. A. what B. which C. that D. whose ( )13. Many sea species ______ by human pollution in the past thirty years. A. are harmed B. have been harmed C. harm D. will harm ( )14. We must take action right now, ______ the situation will become much worse. A. so B. but C. or D. and ( )15. —I’m worried that we can hardly change people’s bad habits towards the ocean. —______. Small actions can make a big difference. A. Take it easy B. Bad luck C. No way D. Hurry up Ⅱ.完形填空（10小题，每小题1.5分，共15分） 阅读短文，选出最佳选项。 The world under the waves is one of the most amazing places on Earth. It is home to thousands of kinds of sea animals and plants. 16 humans have made great progress in ocean research, much of the deep sea still stays unknown to us. Sea water carries rich life, 17 also faces serious environmental problems. Plastic waste and chemical pollution are destroying undersea homes. Some sea creatures 18 live in clean water are hurt by rubbish every year. Lin Tao is a student 19 shows great interest in undersea world. He often reads reports about ocean protection. He wants to know 20 so many sea animals are disappearing year by year. After lots of reading, he finds human activities are the main cause. Many people do not realize that the ocean is closely connected with our daily life. The ocean offers us food and helps control our climate. Nothing 21 pollutes the sea is harmless to human beings. 22 we want to keep the beautiful undersea world alive, small changes in our daily life matter a lot. We can cut down plastic use and refuse products that do harm to the sea. People 23 take ocean protection seriously believe everyone has a duty. We cannot wait for scientists alone to solve all the problems. Every person has a chance 24 make a difference. The beauty 25 lies under the waves is a gift for all humans. It deserves our care and protection. ( )16. A. Unless B. Although C. If D. When ( )17. A. but B. so C. or D. for ( )18. A. what B. whose C. who D. that ( )19. A. which B. whom C. who D. whose ( )20. A. what B. why C. that D. whether ( )21. A. that B. who C. whose D. whom ( )22. A. Whenever B. Whatever C. However D. If ( )23. A. whom B. who C. whose D. which ( )24. A. for B. of C. to D. with ( )25. A. who B. which C. whose D. whom Ⅲ.阅读理解（10小题，每小题2分，共20分） A Our blue planet has large areas covered by oceans. Under the waves, there are wonderful plants and animals. However, this wonderful world is facing serious danger from humanmade pollution. Plastic waste is one of the biggest problems. Lots of plastic objects end up in the ocean every year. They cannot break down easily. Some sea animals mistake plastic for food and get hurt. Chemical waste from factories also flows into the sea. It changes the quality of sea water and influences the growth of sea life. Many teenagers know the ocean is important, but few of them understand how closely our life is connected with the sea. The ocean provides food for millions of people. It also plays an important part in controlling global temperature. If the ocean gets badly polluted, human beings will also pay a high price. Scientists tell us that ocean protection is not only the job of researchers. Ordinary people can also do something useful. We can use fewer plastic products in daily life. We can spread knowledge about sea protection to family and friends. We should remember: what we do to the ocean finally comes back to ourselves. The world under the waves is worth our careful protection. ( )26. What is one of the most serious problems for the ocean? A. Too many sea plants. B. Plastic waste pollution. C. Too much rainfall. D. Too many scientific researches. ( )27. Why is the ocean important for humans? A. It offers food and influences global temperature. B. It provides all kinds of plastic materials. C. It helps people produce more factory waste. D. It can solve all our environmental problems. ( )28. Which statement is TRUE according to the text? A. Plastic in the sea can disappear in a short time. B. Only scientists need to protect the ocean. C. Teenagers can do small things for ocean protection. D. Sea pollution has nothing to do with human life. ( )29. Which grammar point is used in the underlined sentence “what we do to the ocean finally comes back to ourselves”? A. 主语从句 B. 定语从句 C. 宾语从句 D. 让步状语从句 ( )30. What is the main idea of the passage? A. The undersea world is in danger and needs our protection. B. How to carry out difficult undersea scientific research. C. Different kinds of sea animals living in deep water. D. Ways to travel across the wide ocean. B Wang Yu is a highschool student who is deeply interested in undersea life. She often watches science videos about the world under the waves. At first, she only felt amazed by different sea creatures. Slowly, she noticed many worrying facts about ocean pollution. She learned that many sea animals are losing their homes. Some species are becoming fewer because of rubbish and dirty water. She could not accept the thought that such beautiful creatures might disappear in the future. She decided to take action. She shares articles about ocean protection on her social media. She also calls on her classmates to cut down the use of singleuse plastic. Whenever she takes part in outdoor activities, she collects rubbish near seaside areas. Some classmates told her one person could hardly change the serious situation. But Wang Yu believes small efforts add up. She says that although one person’s power is limited, many people’s joint efforts can create great changes. She gives teenagers advice: Learn more knowledge about the ocean. Try to form ecofriendly habits in daily life. Everyone can play a role in protecting the wonderful world under the waves. ( )31. What makes Wang Yu start to care about ocean protection? A. Her trips to foreign countries. B. Science videos and worrying facts of sea pollution. C. Her science teacher’s strict requirements. D. Her wish to become a famous scientist. ( )32. What action does Wang Yu take for ocean protection? A. She builds large undersea research stations. B. She stops all factories from producing waste. C. She spreads oceanprotection ideas and collects seaside rubbish. D. She keeps many sea animals at her own home. ( )33. What do some of Wang Yu’s classmates think at first? A. One person can hardly change the serious situation. B. Everyone can quickly solve ocean pollution. C. Sea animals will never disappear from the earth. D. Teenagers should not care about environmental problems. ( )34. What is Wang Yu’s opinion? A. Small efforts from many people can make great changes. B. Ocean protection is only for scientists and workers. C. We should not worry about sealiving creatures. D. Plastic has no bad influence on the ocean. ( )35. Which word can best describe Wang Yu? A. Careless B. Responsible C. Lazy D. Shy Ⅳ.词汇运用（10小题，每小题1分，共10分） 用括号内单词的适当形式填空。 36. Many strange ________ (creature) live in the deep parts of the ocean. 37. Although scientists ________ (explore) the sea for years, many secrets still remain. 38. We should try our best to stop ________ (harm) activities towards the ocean. 39. No one knows ________ (exact) how many kinds of sealiving creatures are dying out. 40. It is our duty ________ (protect) the amazing world under the waves. 41. The sea animals ________ (who) living space is polluted are in great danger. 42. Lots of sea areas ________ (pollute) by human waste every year. 43. We should refuse ________ (use) singleuse plastic products in daily life. 44. People ________ (care) about ocean environment will take small practical steps. 45. Everyone should realize the ________ (important) of keeping the ocean clean. Ⅴ.句型转换（5小题，每小题2分，共10分，每空一词） 46. The ocean is full of secrets. We all know that.（合并宾语从句） We all know ________ the ocean ________ full of secrets. 47. How can we protect sea life? Could you tell me?（合并宾语从句） Could you tell me ________ ________ protect sea life? 48. People throw rubbish into the sea. It does great harm to sea animals.（合并定语从句） Rubbish ________ ________ into the sea does great harm to sea animals. 49. We should take action to protect the ocean.（改为被动语态） Action ________ ________ ________ to protect the ocean. 50. We keep the sea clean. Sea creatures will live safely.（用if改写） ________ ________ keep the sea clean, sea creatures will live safely. Ⅵ.补全对话（5小题，每小题2分，共10分） 方框内有两项多余选项。 A. Why is the ocean so important for us? B. What can teenagers do for ocean protection? C. Have you learnt something about the undersea world? D. I used to pay little attention to sea pollution. E. It provides food and influences our global environment. F. That is really meaningful advice. G. Will you take part in any oceanprotection activity? A: We’ve finished Unit5 Under the waves these days. 51. ________ B: Yes, I have learned a lot. 52. ________ Now I know the ocean is in serious danger. A: Many people still don’t realize the serious situation. B: 53. ________ A: Because the ocean connects closely with human life. 54. ________ B: I see. I will try to cut down plastic use from now on. A: 55. ________ Small actions can bring great changes. Ⅶ.书面表达（10分） 英语专栏投稿：**Protect the World Under the Waves** 写作要点： 1. 简述海底世界很美，但正遭受严重污染； 2. 海洋对人类的两点重要意义； 3. 青少年可以采取哪些行动保护海洋； 要求：词数**95115词**；恰当使用宾语从句、although引导让步状语从句；行文连贯，禁止抄袭。 ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ 参考答案 Ⅰ.单项选择（1×15=15） 1.B 2.B 3.C 4.A 5.A 6.C 7.B 8.C 9.C 10.A 11.B 12.C 13.B 14.C 15.A Ⅱ.完形填空（1.5×10=15） 16.B 17.A 18.D 19.C 20.B 21.A 22.D 23.B 24.C 25.B Ⅲ.阅读理解（2×10=20） A：26.B 27.A 28.C 29.A 30.A B：31.B 32.C 33.A 34.A 35.B Ⅳ.词汇运用（1×10=10） 36.creatures 37.have explored 38.harmful 39.exactly 40.to protect 41.whose 42.are polluted 43.to use 44.caring 45.importance Ⅴ.句型转换（2×5=10） 46.that; is 47.how we can 48.that/which is thrown 49.should be taken 50.If we Ⅵ.补全对话（2×5=10） 51.C 52.D 53.A 54.E 55.F Ⅶ.书面表达参考范文（107词） Protect the World Under the Waves The world under the waves is beautiful, but it is suffering from serious pollution now. Although many people enjoy the gifts from the ocean, they ignore its protection. The ocean plays an important role in our life. It provides plenty of food for humans. Besides, it helps control our global environment. As teenagers, we can do something useful. We should cut down plastic use. We can also spread the idea of seaprotection to people around us. I believe small actions will make the ocean a better place. 作文评分标准（10分） 910分：要点齐全，熟练运用宾语从句、although让步状语从句，句式丰富，几乎无语法错误，词数达标； 68分：要点齐全，少量语法错误，行文流畅； 35分：要点缺失较多，语法错误较多； 02分：零散单词，无法成文。 学科网（北京）股份有限公司 $