Unit 5 The power of plants 单元测试卷 2025-2026学年外研版（2024）初中英语七年级下册

Unit 5 The Power of Plants 单元测试卷 （时间：60 分钟 满分：100 分） 一、单项选择（每小题 1 分，共 15 分） 1. We should ______ plants because they provide us with oxygen. A. protect B. cut C. burn D. waste 2. Most plants have roots, stems, leaves and ______. A. flowers B. tails C. trunks D. wings 3. Green plants can take in carbon dioxide and ______ oxygen. A. produce B. store C. collect D. save 4. The ______ of a plant keeps it fixed in the soil. A. root B. leaf C. flower D. stem 5. We mustn’t ______ down too many trees to protect the environment. A. cut B. put C. get D. turn 6. Many wild plants are in ______ due to pollution and deforestation. A. danger B. fact C. front D. need 7. Plants help keep the air ______ and fresh for us to breathe. A. clean B. dirty C. hot D. cold 8. The ______ of a plant uses sunlight and water to make food. A. leaf B. root C. stem D. seed 9. This kind of plant grows in the desert. It’s very ______ and can live without water for long. A. strong B. weak C. small D. short 10. We need to give plants enough ______ to help them grow healthily. A. water B. meat C. milk D. bread 11. Plants are extremely ______ to humans—we can’t live without them. A. important B. bad C. useless D. tiny 12. The ______ of a plant carries water and nutrients from roots to leaves. A. stem B. root C. flower D. seed 13. Some plants have colorful ______ that can attract bees and butterflies. A. flowers B. leaves C. roots D. stems 14. We can get various foods from plants, such as fruits and ______. A. vegetables B. meat C. fish D. eggs 15. People often use wood from trees to build ______ and furniture. A. houses B. cars C. planes D. ships 二、根据句意及中文提示写单词（每小题 1 分，共 10 分） 1. The p________ is very important to our living environment. (植物) 2. The r________ of a plant helps it take in water from the soil. (根) 3. We should p________ wild plants from being destroyed. (保护) 4. Don’t c________ down young trees in the forest. (砍倒) 5. Green plants p________ oxygen for people and animals. (产生) 6. Many rare plants are in d________ because of climate change. (危险) 7. The l________ of this tree turns red in autumn. (叶子) 8. Plants need enough w________ and sunlight to grow. (水) 9. The s________ of a plant supports its leaves and flowers. (茎) 10. Plants help keep the a________ clean by taking in carbon dioxide. (空气) 三、词形变换（每小题 1 分，共 10 分） 1. We should protect all kinds of ________ (plant) around us. 2. Trees can ________ (produce) plenty of oxygen every day. 3. The ________ (leaf) of the maple tree become red in fall. 4. Many plants are in ________ (dangerous) because of human activities. 5. It’s necessary for us ________ (save) the rainforests. 6. Don’t ________ (cut) down trees without permission. 7. Plants are our loyal ________ (friend) on Earth. 8. This desert plant is ________ (strong) enough to survive hot summers. 9. People use bamboo ________ (make) baskets and furniture. 10. Plants take in carbon dioxide and give out ________ (oxygen). 四、短语英汉互译（每小题 1 分，共 10 分） 1. 保护植物 ____________ 6. 产生氧气 ____________ 2. 处于危险中 ____________ 7. 砍倒树木 ____________ 3. 保持空气清洁 ____________ 8. 植物的根 ____________ 4. 照顾植物 ____________ 9. 吸收二氧化碳 ____________ 5. 帮助植物生长 ____________ 10. be important to humans ____________ 五、句型转换（每小题 2 分，共 10 分） 按要求改写，每空一词。 1. Plants produce oxygen for us.（改为一般疑问句） ____ plants ____ oxygen for us? 2. The stem carries water to the leaves.（对画线部分提问） ____ ____ water to the leaves? 3. We should waste too much water on plants.（改为否定句） We ____ ____ waste too much water on plants. 4. We must protect wild plants.（同义句） We must ____ ____ of wild plants. 5. People use wood to make desks.（对画线部分提问） ____ ____ people use wood to do? 六、完形填空（每小题 1 分，共 10 分） Plants are our most important friends on Earth. They grow almost everywhere. Most plants have three main parts: roots, stems and 1____. The roots hold the plant in the 2____ and take in water. The stem carries water and nutrients to the leaves. The leaves use sunlight to 3______ food for the plant. Plants are very 4____ to all living things. They produce oxygen that we need to 5____. They also provide food for animals and humans, like fruits and 6____. Some plants even help keep the air 7____ and cool. But now many plants are in 8____. People cut down forests to build cities and farms. Pollution also hurts plants. We must 9____ plants and their homes. We should plant more trees and stop 10______ down forests. 1. A. leaves B. tails C. trunks D. wings 2. A. water B. soil C. air D. sun 3. A. make B. take C. get D. buy 4. A. important B. harmful C. useless D. small 5. A. eat B. drink C. breathe D. sleep 6. A. meat B. vegetables C. fish D. eggs 7. A. dirty B. clean C. hot D. warm 8. A. safety B. danger C. fact D. need 9. A. protect B. burn C. cut D. waste 10. A. putting B. getting C. cutting D. turning 七、阅读理解（每小题 2 分，共 20 分） （A） Plants are the foundation of life on Earth. Without plants, humans and animals could not survive. Green plants use sunlight, water and carbon dioxide to make their own food through photosynthesis. During this process, they produce oxygen which all living things need to breathe. Plants provide food for almost all animals. Herbivores eat plants directly, while carnivores eat animals that feed on plants. Humans get most of their food from plants, such as rice, wheat, vegetables and fruits. Plants also help protect the environment. They hold soil in place to prevent erosion. They can also absorb harmful gases and keep the air clean. However, many plants are now in danger. Deforestation, pollution and climate change are destroying their habitats. We must protect plants to keep our planet healthy. 1. Why are plants the foundation of life on Earth? A. They produce oxygen and provide food. B. They are beautiful to look at. C. They can move like animals. D. They can talk to humans. 2. What do plants need for photosynthesis? A. Sunlight, water and carbon dioxide. B. Meat, milk and eggs. C. Air, wind and rain. D. Houses, cars and roads. 3. Which of the following food comes from plants? A. Rice and vegetables. B. Fish and meat. C. Milk and cheese. D. Eggs and chicken. 4. How do plants protect the environment? A. They prevent soil erosion and clean the air. B. They pollute rivers and land. C. They cut down other plants. D. They build houses for animals. 5. What is destroying plants’ habitats? A. Deforestation, pollution and climate change. B. Planting more trees. C. Watering plants regularly. D. Protecting wild plants. （B） My favourite plant is bamboo. It is a type of tall grass that grows in many warm and rainy areas. Bamboo grows extremely fast—some kinds can grow up to 1 meter in just one day! It has a straight, hard stem that is very strong but light. People use bamboo to make many useful things, such as chairs, tables, baskets and even houses. In some countries, bamboo is also used to make paper. Bamboo is not just useful to humans; it is also important to animals. Pandas love to eat bamboo leaves, and many birds build nests in bamboo forests. But now some bamboo forests are getting smaller. People cut down too much bamboo for its wood, and some habitats are lost. We must stop cutting down bamboo randomly and protect bamboo forests. Bamboo is our friend, and we need it to keep nature balanced. 6. What is the writer’s favourite plant? A. Bamboo B. Rose C. Oak tree D. Sunflower 7. How fast can some bamboo grow? A. 1 meter in one day. B. 1 meter in one week. C. 1 meter in one month. D. 1 meter in one year. 8. What do people use bamboo to make? A. Chairs, tables and baskets. B. Cars, planes and ships. C. Books, pens and bags. D. Meat, milk and eggs. 9. Which animal loves to eat bamboo leaves? A. Panda B. Tiger C. Lion D. Dog 10. Why are some bamboo forests getting smaller? A. People cut down too much bamboo. B. People plant more bamboo. C. Animals eat all the bamboo. D. The weather becomes too cold. 八、书面表达（15 分） 题目：My Favourite Plant 要求：150词左右，紧扣本单元内容，介绍你最喜欢的植物、它的特点、作用及保护它的原因。 _________________________________________________________ __________________________________________________________ __________________________________________________________ 参考答案 一、单项选择 1.A 2.A 3.A 4.A 5.A 6.A 7.A 8.A 9.A 10.A 11.A 12.A 13.A 14.A 15.A 二、根据句意及中文提示写单词 1. plant 2. root 3. protect 4. cut 5. produce 6. danger 7. leaf 8. water 9. stem 10. air 三、词形变换 1. plants 2. produce 3. leaves 4. danger 5. to save 6. cut 7. friends 8. strong 9. to make 10. oxygen 四、短语英汉互译 1. protect plants 2. in danger 3. keep the air clean 4. take care of plants 5. help plants grow 6. produce oxygen 7. cut down trees 8. root of a plant 9. take in carbon dioxide 10. 对人类重要 五、句型转换 1. Do; produce 2. What carries 3. should not 4. take care 5. What do 六、完形填空 1.A 2.B 3.A 4.A 5.C 6.B 7.B 8.B 9.A 10.C 七、阅读理解 （A）1.A 2.A 3.A 4.A 5.A （B）6.A 7.A 8.A 9.A 10.A 八、书面表达范文 My Favourite Plant My favourite plant is bamboo. It is a tall, straight grass that grows quickly in warm, rainy areas. Some bamboo can grow 1 meter in just one day, which surprises me a lot. It has a hard but light stem, and its long green leaves look fresh all year round. Bamboo is very useful to humans. People use it to make chairs, baskets and even houses. It is also the main food of pandas, our national treasure. Bamboo forests are homes to many small animals too. But now some bamboo forests are disappearing because people cut down too much bamboo. We must protect bamboo and its habitats. Bamboo is not just a plant; it is our friend and an important part of nature. I hope more people will love and protect bamboo in the future. 学科网（北京）股份有限公司 $