Unit 3单元测试卷（强化卷） 2024-2025学年沪教版（2024）七年级英语下册

七年级下 Unit 3 Trees and Us 测试卷（强化卷） 学校：__________班级：__________姓名：_________考号：___________ 第Ⅰ卷 选择题 一、语法选择 （10分） Trees are essential to life on Earth. They 1 us with oxygen and clean the air we breathe. But sadly, humans 2 down trees for decades. Now, many organizations 3 to save forests through education and action. For instance, my classmate Zhang Wei 4 a club called “Green Future” last month. He 5 creative posters to show how trees fight climate change. Right now, he 6 a video about reforestation. “If everyone 7 fewer plastic products, we can reduce pollution,” he explains. I 8 his efforts. My school 9 to organize tree-planting events every spring. So far, we 10 over 200 saplings in the community. 1. A. provide B. provides C. provided D. providing 2. A. cut B. are cutting C. have cut D. cuts 3. A. try B. tried C. are trying D. tries 4. A. starts B. started C. is starting D. has started 5. A. designs B. designed C. is designing D. will design 6. A. prepares B. prepared C. is preparing D. has prepared 7. A. uses B. use C. used D. will use 8. A. support B. supports C. supported D. am supporting 9. A. promises B. promised C. have promised D. are promising 10. A. has B. have C. had D. are having 二、完形填空（每题1.5分，共15分） Trees are Earth’s natural air purifiers. They 1 carbon dioxide and release oxygen. Yet, deforestation continues to threaten our planet. Every minute, forests the size of 30 football fields 2 destroyed. This not only affects wildlife but also worsens global warming. In 2021, a team of volunteers from Sunshine Middle School launched a project named “Guardians of the Forest”. They 3 workshops to teach villagers 4 to grow trees sustainably. Initially, many people ignored their advice, but the team persisted. They 5 brochures and hosted documentaries about forest conservation. One afternoon, a local carpenter, Mr. Liu, 6 to the team. He admitted, “I once cut down trees for furniture, but now I understand their value. I 7 to plant 50 trees each year.” His commitment inspired others to join the cause. Today, the village’s air is fresher, and birds have returned. The volunteers’ dedication 8 a positive impact. Their journey proves that collective efforts can 9 our world. As an old proverb says, “A society grows great when people plant trees whose shade they’ll never sit under. The best time to start is 10 .” 1. A. absorb B. produce C. pollute D. reduce 2. A. is B. are C. was D. were 3. A. launch B. launched C. are launching D. will launch 4. A. what B. when C. how D. why 5. A. make B. made C. are making D. will make 6. A. talks B. talked C. is talking D. has talked 7. A. plan B. planned C. have planned D. am planning 8. A. make B. makes C. made D. have made 9. A. change B. changes C. changed D. changing 10. A. yesterday B. today C. tomorrow D. future 三、阅读理解（共4篇，每题2分，共40分） A The Secret Life of Trees Did you know trees can “help” each other? Recent studies reveal that trees in a forest are interconnected through fungal networks. These networks, known as mycorrhizal networks, allow trees to share nutrients and even send distress signals. When a tree is damaged by insects, it releases chemicals through the fungi to alert neighboring trees. The nearby trees then produce defensive compounds to repel pests. Older trees, often called “mother trees,” use these networks to support younger saplings by sending them sugars. This discovery challenges the idea that trees are solitary. Instead, they form complex communities, much like human societies. 1.How do trees communicate in a forest? A. Through their roots. B. By dropping leaves. C. Using fungal networks. D. By changing colors. 2.What do trees do after receiving a distress signal? A. Grow faster. B. Produce defensive chemicals. C. Attract birds. D. Stop growing. 3.What role do “mother trees” play? A. They compete for sunlight. B. They harm younger trees. C. They provide nutrients to saplings. D. They store carbon dioxide. 4.The word “solitary” in Paragraph 3 means _____. A. lonely B. noisy C. weak D. tall 5.What is the main message of the passage? A. Trees are independent organisms. B. Trees form supportive communities. C. Fungi are harmful to forests. D. Insects destroy all trees. B The Giant Sequoias: Giants of the Forest Giant sequoias, native to California, are among the largest and oldest trees on Earth. Some are over 3,000 years old and stand taller than 80 meters. Their thick, fire-resistant bark helps them survive wildfires. These trees play a crucial role in their ecosystem. Their fallen logs create habitats for insects and small animals. Additionally, their massive size allows them to store vast amounts of carbon, making them vital in combating climate change. Sadly, climate change and human activities threaten these giants. Conservationists urge immediate action to protect them. 1.What protects giant sequoias from wildfires? A. Their height. B. Fire-resistant bark. C. Deep roots. D. Thick leaves. 2.How do giant sequoias help fight climate change? A. By absorbing carbon dioxide. B. By producing oxygen. C. By attracting tourists. D. By preventing floods. 3.What is a major threat to giant sequoias? A. Lack of sunlight. B. Climate change. C. Too many animals. D. Cold weather. 4.The word “massive” in Paragraph 2 means _____. A. small B. enormous C. fragile D. temporary 5.What is the author’s purpose in writing this passage? A. To criticize human activities. B. To explain the lifespan of trees. C. To highlight the importance of protecting sequoias. D. To compare sequoias with other trees. C The Girl Who Grew a Forest In 2008, 9-year-old Wangari from Kenya learned that her village’s forest was disappearing. She decided to plant trees herself. With no tools or money, she collected seeds and planted them in empty plots. Over 15 years, Wangari’s efforts transformed barren land into a lush forest. Her story spread, inspiring a national movement called “Green Kenya.” Now, over 10,000 volunteers plant trees annually. Wangari’s motto is, “A single seed can grow into a forest.” Her work shows that age is no barrier to making a difference. 1.Why did Wangari start planting trees? A. To earn fame. B. To replace lost forests. C. To study botany. D. To attract tourists. 2.How long did it take Wangari to create the forest? A. 5 years. B. 10 years. C. 15 years. D. 20 years. 3.What is “Green Kenya”? A. A government policy. B. A tree-planting movement. C. A type of tree. D. A national park. 4.What lesson does Wangari’s story teach? A. Children cannot change the world. B. Individual actions can inspire collective change. C. Forests grow without help. D. Money is essential for conservation. 5.The phrase “age is no barrier” means _____. A. old people are useless B. anyone can contribute C. children should not work D. time is unimportant D How Trees Improve Mental Health Spending time around trees reduces stress and improves mood. Scientists call this “forest therapy.” Studies show that walking in forests lowers blood pressure and boosts creativity. Trees also create peaceful environments. Urban parks with trees provide spaces for relaxation and social interaction. Schools with more trees report better student focus and academic performance. Protecting trees isn’t just about the environment—it’s about human well-being too. 1.What is “forest therapy”? A. A medical treatment using leaves. B. The mental health benefits of being in forests. C. A type of exercise. D. A method to grow trees. 2.How do urban parks benefit people? A. By reducing traffic. B. By offering relaxation spaces. C. By producing wood. D. By cleaning water. 3.What effect do trees have on students? A. They increase homework. B. They improve focus. C. They cause distractions. D. They reduce playtime. 4.The word “well-being” in the last paragraph refers to _____. A. wealth B. happiness and health C. fame D. intelligence 5.What is the main idea of the passage? A. Trees are only useful for the environment. B. Trees enhance both ecological and human health. C. Urban areas should remove all trees. D. Forests are dangerous. 第Ⅱ卷 非选择题（共35分） 第1节、 根据首字母填写单词（每题1分，共6分） 1.Trees r______ oxygen into the air, which humans need to survive. 2.We should a______ cutting down trees to protect ecosystems. 3.The roots of a tree s______ water and minerals from the soil. 4.Many species face e______ due to habitat loss. 5.Using reusable bags is a s______ way to reduce plastic waste. 6.The teacher d______ the importance of recycling in class today. 第二节、完成句子（每题2分，共14分） 1.树木通过光合作用吸收二氧化碳。 Trees ______ carbon dioxide through photosynthesis. 2.现在进行时用于描述此刻正在发生的动作。 The present continuous tense is used ______. 3.我们应该鼓励更多人参与植树活动。 We should ______ more people to join tree-planting activities. 4.过度砍伐导致了许多环境问题。 Over-cutting ______ many environmental problems. 5.这张椅子是用回收木材制成的。 This chair ______ recycled wood. 6.如果每个人节约用纸，我们能拯救更多树木。 If everyone saves paper, we ______. 7.学生们正在讨论如何减少碳足迹。 The students are discussing ______ their carbon footprint. 第三节、书面表达（15分） 假设你是学校“环保社”社长，写一封倡议信，号召全校师生参与“校园植树周”活动。内容包括： 1.树木的重要性（改善空气质量、提供栖息地等）； 2.当前校园绿化不足的问题； 3.具体活动安排（时间、地点、参与方式）； 4.呼吁节约用纸，支持环保。 要求： 80词左右； 使用本单元词汇，如 oxygen, habitat, sapling, recycle 等。 答案 第Ⅰ卷 选择题 一、语法选择 1.A 2. C 3. C 4. D 5. C 6. C 7. B 8. D 9. C 10. B 二、完形填空 1.A 2. B 3. B 4. C 5. B 6. B 7. C 8. D 9. A 10. B 三、阅读理解 A: 1-5 CBCAB B: 6-10 BABBC C: 11-15 BCBBB D: 16-20 BBBBB 第Ⅱ卷 非选择题 第一节、根据首字母填写单词 1.release 2. avoid 3. absorb 4. extinction 5. simple 6. discussed 第二节、完成句子 1.absorb 2.to describe actions happening at the moment 3.encourage 4.has led to 5.is made of 6.can save more trees 7.how to reduce 第三节、书面表达（参考范文） Join Our Campus Tree-Planting Week! Dear teachers and students, Trees are essential for clean air and animal habitats. However, our campus lacks green spaces due to over-development. Let’s take action! From March 20th to 26th, join us at the school garden to plant saplings. We’ll provide tools and guidance. Additionally, please reuse paper and recycle waste to protect our planet. Together, we can create a greener campus! Eco Club Leader 学科网（北京）股份有限公司 $$