Unit 7 The natural world 单元测试卷2025-2026学年译林版英语八年级上册

译林版2025年秋八年级上册英语 Unit 7 The natural world 单元测试卷（笔试部分） 测试时间：90分钟 总分：120分 一、单项选择（每题1分，共15分） ( ) 1. Forests are important ______ many animals because they provide food and homes for them. A. for B. to C. with D. of ( ) 2. —What kind of animals live in this ecosystem? —______ tigers, wolves and some other wild animals. A. Such as B. For example C. As D. Like ( ) 3. The river is ______ polluted that many fish in it have died. A. too B. so C. such D. very ( ) 4. We should plant more trees ______ the earth’s ecosystem can keep balanced. A. so that B. in order to C. such that D. because ( ) 5. Bees help flowers ______ and this helps produce more fruits. A. grow B. pollinate C. develop D. produce ( ) 6. Human activities ______ cutting down trees make the air dirtier every day. A. like B. as C. for D. with ( ) 7. The government has made laws ______ people from ______ too many trees. A. stop; cutting B. to stop; cutting C. stop; cut D. to stop; cut ( ) 8. —______ is the relationship between living things and their environment? —It’s very close and they depend on each other. A. How B. What C. Why D. When ( ) 9. If we keep ______ the environment, we will lose our home sooner or later. A. polluting B. to pollute C. pollute D. polluted ( ) 10. The number of the rare plants in this area ______ getting smaller because of soil pollution. A. is B. are C. am D. be ( ) 11. We can save energy ______ turning off the lights when we leave the room. A. by B. with C. through D. in ( ) 12. —I think we should protect the natural world. —______. It is the most precious gift from nature to us. A. I don’t think so B. That’s right C. No problem D. Never mind ( ) 13. Many birds ______ their homes in the tree tops when spring comes. A. build B. make C. create D. found ( ) 14. The ecosystem is a complex system ______ living things and non-living things interact with each other. A. which B. where C. that D. when ( ) 15. —What can we do to protect the natural world? —We can ______ more recyclable products instead of plastic ones. A. use B. to use C. using D. used 二、英汉互译（每题1分，共10分） 1. 生态系统 ________ ___ 2. 保持生态平衡 ________ ___ 3. 砍伐树木 __________ _ 4. 相互依赖 ________ ___ 5. 空气污染 ________ ___ 6. living things ________ ___ 7. non-living things ________ ___ 8. cut down forests _________ __ 9. depend on each other _______ ____ 10. protect the natural world ________ ___ 三、完形填空（每题1分，共10分） The natural world is made up of different ecosystems. Forests are one of the most important ones. They are home to 1______ of animals and plants. Trees in forests can take in CO₂ and produce oxygen, which is necessary for us to 2______. However, people have cut down too many trees for wood and farmland. As a result, many animals have lost their 3______. Air pollution is another serious problem. Factories 4______ waste gases into the air every day. This makes the air dirty and harmful to our health. Luckily, more and more people have realized the importance of 5______ the natural world. Governments are making laws to stop pollution. Many people are planting trees and 6______ to reduce waste. We should also do our part. We can save water by turning off the tap when brushing teeth. We can use cloth bags instead of plastic bags. We can also tell our friends about the 7______ of protecting the environment. The natural world is our home. We must take action to protect it 8______ it is too late. Only in this way can we live a happy life 9______ the earth. Let’s start protecting it 10______ today. ( ) 1. A. million B. millions C. million of D. millions of ( ) 2. A. breathe B. eat C. drink D. sleep ( ) 3. A. food B. water C. homes D. lives ( ) 4. A. take B. release C. get D. bring ( ) 5. A. damaging B. protecting C. changing D. destroying ( ) 6. A. trying B. trying our best C. try D. try our best ( ) 7. A. importance B. difficulty C. possibility D. difference ( ) 8. A. after B. when C. before D. until ( ) 9. A. in B. on C. at D. for ( ) 10. A. from B. on C. in D. to 四、词汇运用（共20分） （一）根据首字母或中文提示写单词（每题1分，共10分） 1. The ______（生态系统）is made up of living things and non-living things. ______ 2. We should do our best to keep the ______（平衡）of nature. ______ 3. People should stop ______（砍伐）down too many trees. ______ 4. Living things and non-living things ______（依赖）on each other in the ecosystem. ______ 5. Air ______（污染）is a serious problem in many big cities. ______ 6. Many rare animals are in d______ because of the loss of living areas. ______ 7. Trees can take in CO₂ and produce o______ for us to breathe. ______ 8. The g______ has made laws to protect the natural world. ______ 9. We should r______ waste and use recyclable products. ______ 10. Bees help flowers grow by p______ them. ______ （二）用所给单词的适当形式填空（每题1分，共10分） 1. This kind of plant ______（main）grows in the wetland. ______ 2. The ______（protect）of the natural world is everyone’s duty. ______ 3. We should do something ______（prevent）people from polluting the environment. ______ 4. The old man is good at ______（take）care of the plants in the garden. ______ 5. The number of wild birds ______（be）getting smaller these years. ______ 6. What made the fish ______（die）suddenly in the river? ______ 7. There ______（be）a lot of rubbish in the river, which is bad for the water. ______ 8. The students are talking about the ______（important）of protecting the earth. ______ 9. He was interested in ______（watch）documentaries about the natural world. ______ 10. We hope all living things can live ______（peace）on the earth. ______ 五、短语填空（每题2分，共10分） 选择合适的短语并用其适当形式填空 depend on, cut down, keep balanced, take in, release...into 1. Plants ______ CO₂ and produce oxygen for us to breathe. 2. We should not ______ too many trees, or we will destroy the forest ecosystem. 3. Living things and non-living things ______ each other in the natural world. 4. It’s important to let the ecosystem ______ to protect our earth. 5. Factories should not ______ waste gases ______ the air directly. 六、句型转换（每题2分，共10分） 1. We should protect the natural world.（改为被动语态） The natural world ______ ______ ______ by us. 2. Trees can prevent soil from being washed away.（对划线部分提问） ______ ______ prevent soil from being washed away? 3. The number of wild animals is getting smaller.（对划线部分提问） ______ ______ getting smaller? 4. We can save energy by turning off the lights.（对划线部分提问） ______ ______ we save energy? 5. People pollute the river with waste water.（改为否定句） People ______ ______ the river with waste water. 七、补全对话（每题2分，共10分） A: Hi, Tom! What are you reading? B: I’m reading a book about the natural world. It’s very interesting. A: 1. ______ B: It says that the forest ecosystem is in danger because people cut down too many trees. A: 2. ______ B: Yes. Many animals have lost their homes and some have died out. A: 3. ______ B: We can plant more trees and stop cutting down forests. A: 4. ______ B: We can also use cloth bags instead of plastic bags to reduce pollution. A: 5. ______ B: Sure! I can lend it to you after I finish reading it. A. What else can we do? B. What does it say? C. Is that true? D. Can I borrow the book from you? E. What can we do to protect it? 八、阅读理解（每题2分，共20分） A The ecosystem is a community of living things and non-living things that interact with each other. Living things include plants, animals and microorganisms. Non-living things include air, water, soil and sunlight. All these things are connected. For example, plants need sunlight and water to grow. Animals eat plants or other animals for food. They also need air to breathe. However, human activities are destroying the ecosystem. We cut down forests and pollute air and water. These activities make the ecosystem unbalanced. As a result, many plants and animals are in danger. We must protect the ecosystem. We can plant more trees, reduce pollution and recycle waste. We should live in harmony with nature. ( ) 1. What is an ecosystem made up of? A. Living things B. Non-living things C. Living things and non-living things D. Plants and animals ( ) 2. Which of the following is NOT a non-living thing? A. Air B. Soil C. Microorganisms D. Sunlight ( ) 3. How do human activities destroy the ecosystem? A. By cutting down forests B. By polluting air and water C. By recycling waste D. Both A and B ( ) 4. What can we do to protect the ecosystem? A. Plant more trees B. Reduce pollution C. Recycle waste D. All of the above ( ) 5. What is the main idea of the passage? A. The ecosystem is a community of living things B. We should protect the ecosystem C. Human activities are good for the ecosystem D. Non-living things are more important B Rainforests cover only 6% of the earth’s surface, but they are home to over half of the world’s plants and animals. Rainforests are called the “lungs of the earth” because they take in CO₂ and produce oxygen. However, rainforests are in great danger. Every minute, about 20 hectares of rainforest are cut down. People cut them down for wood and farmland. This destroys animals’ homes. Some species are dying out. Rainforests are important for the climate too. They keep the earth’s climate stable. When rainforests are cut down, the climate becomes warmer. We must protect rainforests. We can buy products made from sustainable wood. We can also support organizations that protect rainforests. ( ) 6. What percentage of the earth’s surface do rainforests cover? A. 20% B. 6% C. 50% D. 10% ( ) 7. Why are rainforests called the “lungs of the earth”? A. Because they have many plants and animals B. Because they take in CO₂ and produce oxygen C. Because they are very big D. Because they are in danger ( ) 8. Why do people cut down rainforests? A. For wood and farmland B. For animals C. For oxygen D. For CO₂ ( ) 9. What happens when rainforests are cut down? A. The climate becomes warmer B. The climate becomes colder C. More animals live there D . More plants grow there ( ) 10. What can we do to protect rainforests? A. Buy sustainable wood products B. Support protection organizations C. Both A and B D. Cut down more trees 九、书面表达（25分） 请以Protecting the Natural World为题，写一篇短文，谈谈自然世界的重要性、目前面临的问题以及我们可以采取的保护措施，不少于100词。 ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________   参考答案 一、1.A 2.A 3.B 4.A 5.B 6.A 7.B 8.B 9.A 10.A 11.A 12.B 13.A 14.B 15.A 二、1.ecosystem 2.keep the ecological balance 3.cut down trees 4.depend on each other 5.air pollution 6.生物 7.非生物 8.砍伐森林 9.相互依赖 10.保护自然世界 三、1.D 2.A 3.C 4.B 5.B 6.B 7.A 8.C 9.B 10.A 四、（一）1.ecosystem 2.balance 3.cutting 4.depend 5.pollution 6.danger 7.oxygen 8.government 9.recycle 10.pollinating （二）1.mainly 2.protection 3.to prevent 4.taking 5.is 6.die 7.is 8.importance 9.watching 10.peacefully 五、1.take in 2.cut down 3.depend on 4.keep balanced 5.release; into 六、1.should be protected 2.What can 3.What is 4.How can 5.don’t pollute 七、1.B 2.C 3.E 4.A 5.D 八、1.C 2.C 3.D 4.D 5.B 6.B 7.B 8.A 9.A 10.C 九、范文 Protecting the Natural World The natural world is very important to us. It provides us with fresh air, clean water and food. It is also home to many plants and animals. However, the natural world is facing many problems now. People cut down too many trees and pollute the air and water. Many animals are losing their homes and some are even dying out. We must do something to protect it. First, we can plant more trees and stop cutting down forests. Second, we can use cloth bags instead of plastic bags to reduce pollution. Third, we can tell more people about the importance of protecting nature. Let’s take action together to save our natural world. 学科网（北京）股份有限公司 $