2025年五年级英语下册生物多样性与生态保护的英语描述试卷及答案

2025 年五年级英语下册生物多样性与生态保护的英语描述试卷及答 案 一、单项选择题（每题2 分，共10 题） 1. ______ refers to the variety of life on Earth. A. Pollution B. Biodiversity C. Deforestation D. Climate 2. Which animal is NOT typically found in a rainforest? A. Panda B. Toucan C. Jaguar D. Tree frog 3. Cutting down too many trees is called ______. A. recycling B. deforestation C. conservation D. pollution 4. Polar bears live mainly in the ______. A. desert B. ocean C. Arctic D. savanna 5. A place where animals live naturally is called their ______. A. nest B. habitat C. zoo D. house 6. Which of these helps protect endangered species? A. Hunting B. Building more roads C. Creating nature reserves D. Using plastic bags 7. Bees are important because they ______. A. make honey B. pollinate flowers C. sting people D. build hives 8. The "3R rule" in conservation stands for ______. A. Run, Rest, Read B. Reduce, Reuse, Recycle C. Rain, River, Rock D. Red, Blue, Green 9. Coral reefs are threatened by ______. A. ocean cleanups B. sunscreen chemicals C. fishing nets D. both B and C 10. Which action harms marine life? A. Using reusable bottles B. Throwing plastic in the ocean C. Planting seagrass D. Watching dolphins from a boat 二、多项选择题（每题2 分，共10 题） 1. Which are examples of ecosystems? (Choose two) A. A single tree B. A desert C. A glass of water D. A coral reef 2. Endangered animals include: (Choose two) A. Domestic cats B. Siberian tigers C. Common sparrows D. Black rhinos 3. Ways to protect biodiversity: (Choose two) A. Drive cars everywhere B. Plant native trees C. Buy ivory products D. Support wildlife charities 4. Rainforest benefits: (Choose two) A. Produce oxygen B. Increase temperatures C. Provide medicines D. Cause floods 5. Threats to oceans: (Choose two) A. Overfishing B. Beach cleanups C. Oil spills D. Coral planting 6. Parts of a food chain: (Choose two) A. Sunlight B. Plastic C. Herbivores D. Factories 7. Renewable energy sources: (Choose two) A. Coal B. Solar power C. Wind turbines D. Gasoline 8. In a balanced ecosystem: (Choose two) A. Predators and prey coexist B. All plants die C. Humans control everything D. Natural cycles continue 9. Why are wetlands important? (Choose two) A. Filter pollutants B. Breed mosquitoes C. Absorb floodwater D. Increase air pollution 10. Good conservation practices: (Choose two) A. Leave animals in the wild B. Collect rare butterflies C. Join beach cleanups D. Buy endangered pet species 三、判断题（每题2 分，共10 题） 1. Biodiversity means having only one type of plant in an area. (True/False) 2. Zoos always help protect endangered species. (True/False) 3. Turning off lights saves energy and protects habitats. (True/False) 4. All insects are harmful to the environment. (True/False) 5. Recycling paper helps reduce tree cutting. (True/False) 6. Plastic bags break down quickly in oceans. (True/False) 7. Poachers hunt animals only for food. (True/False) 8. National parks allow people to hunt freely. (True/False) 9. Bees dying out affects human food supply. (True/False) 10. Using public transport reduces air pollution. (True/False) 四、简答题（每题5 分，共4 题） 1. Give two reasons why biodiversity is important for humans. 2. Name three everyday actions to reduce waste. 3. Explain why frogs are called "indicator species" in an ecosystem. 4. How can planting trees help fight climate change? 答案 一、单项选择题：1.B 2.A 3.B 4.C 5.B 6.C 7.B 8.B 9.D 10.B 二、多项选择题：1.BD 2.BD 3.BD 4.AC 5.AC 6.AC 7.BC 8.AD 9.AC 10.AC 三、判断题：1.False 2.False 3.True 4.False 5.True 6.False 7.False 8.False 9.True 10.True 四、简答题： 1. Provides food/medicine; Keeps ecosystems stable; Supports pollination (Any 2) 2. Use reusable bags/bottles; Recycle paper/plastic; Compost food waste (Any 3) 3. Frogs’ sensitive skin shows pollution/ecosystem health changes early 4. Trees absorb CO2 (carbon dioxide); Release oxygen; Cool the air