Unit 5 The power of plants课时2 Understanding ideas 部分 课时练习 2026-2027学年外研版七年级英语上册

**基本信息** 外研版七年级上册Unit 5同步练习，通过基础巩固、语法应用、语篇理解三层递进设计，构建词汇-句型-语篇完整知识链，适配新授课语言能力培养与思维品质提升需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|核心词汇与词组|单词/词组默写（如leaf, collect sunlight and CO₂），夯实语言基础| |进阶层|语法与句型转换|适当形式填空（时态/名词）、单项选择（介词/动词），强化语言应用能力| |综合应用层|语篇理解与表达|阅读理解（光合作用过程）、完形填空（植物造食逻辑），提升思维品质与跨语境沟通能力|

2026-2027学年外研版七年级上册 Unit 5 The power of plants 课时2 Understanding ideas 部分 课时练习 一、单词默写 1. __________ /kwɔːtə/ 一刻钟，十五分钟 2. __________ /ˈwɜːkʃɒp/ 车间，工场 3. __________ /liːf/ 叶，叶子 4. __________ /kəˈlekt/ 收集，采集 5. __________ /ruːt/ 根 6. __________ /raɪz/ 升高，上升 7. __________ /stem/ （植物的）茎，梗，柄 8. __________ /mɪks/ （使）混合，拌和 9. __________ /prəˈdjuːs/ （自然地）生产，产生，出产 10. __________ /ˈɒksɪdʒən/ 氧 二、词组默写（根据中文写出英文词组） 1. __________ 绿色的制服 2. __________ 收集阳光和二氧化碳 3. __________ 通过茎上升 4. __________ 混合水和二氧化碳 5. __________ 对……很重要 6. __________ 休息一下 7. __________ 自然世界 8. __________ 数百万的 三、根据要求完成句子（用所给中文提示补全英文句子，每空一词） 1. 现在是七点一刻。 It's __________ past seven. 2. 他穿着绿色制服。 He is in his green __________ . 3. 水将通过茎上升到叶子。 The water will __________ up to the leaf through the stem. 4. 叶子里的工人将混合水、二氧化碳和阳光。 The workers in the leaf will __________ water, CO₂ and sunlight. 5. 他们将要生产什么？ What are they going to __________ ? 四、用括号内所给词的适当形式填空 1. Worker No. 55 __________ (start) work at seven fifteen. 2. They __________ (collect) sunlight and CO₂ during the day. 3. The water will rise up to the leaf through the __________ (stem). 4. The workers __________ (mix) water, CO₂ and sunlight to produce sugar. 5. Oxygen __________ (mean) a lot to animals and humans. 五、单项选择 ( )1. Worker No. 55 is going to start work ______ the plant. A. at B. in C. on D. for ( )2. There are 20 ______ 100 workers in each workshop. A. to B. for C. and D. or ( )3. Workers from the Root send ______ water. A. on B. up C. in D. out ( )4. The water will rise ______ to the Leaf through the Stem. A. down B. up C. on D. in ( )5. Oxygen is important to humans – they need it to ______. A. breathe B. eat C. drink D. sleep 六、将下列汉语句子翻译成英文 1. 现在是七点一刻。 2. 他们收集阳光和二氧化碳。 3. 水将通过茎上升。 4. 工人将混合水、二氧化碳和阳光。 5. 氧气对人类和动物非常重要。 七、阅读理解 How Plants Make Their Food Plants are amazing. They can make their own food using sunlight, water and carbon dioxide. This process is called photosynthesis. In a plant, the leaves are the main food factories. They are green because they contain a chemical called chlorophyll. Chlorophyll captures sunlight. The roots of a plant absorb water and minerals from the soil. The water travels up the stem to the leaves. At the same time, carbon dioxide enters the leaves through tiny openings. With the help of sunlight, the leaves combine water and carbon dioxide to produce sugar. This sugar is the plant's food. It provides energy for the plant's growth. During this process, plants also produce oxygen. They release oxygen into the air. This is very important for animals and humans because they need oxygen to breathe. In fact, plants are the main source of oxygen on Earth. Plants also store the sugar they produce. Some of it is used for growth, while the rest is stored in roots, fruits or seeds. That is why fruits taste sweet. So when you eat an apple or a carrot, you are actually eating the plant's stored food. ( )1. Where does photosynthesis mainly happen? A. In the roots. B. In the stems. C. In the leaves. D. In the flowers. ( )2. What does chlorophyll do? A. It absorbs water. B. It captures sunlight. C. It produces oxygen. D. It stores sugar. ( )3. What do plants produce during photosynthesis? A. Only sugar. B. Only oxygen. C. Sugar and oxygen. D. Water and minerals. ( )4. Why are some fruits sweet? A. Because they contain water. B. Because they contain stored sugar. C. Because they contain minerals. D. Because they contain chlorophyll. ( )5. What is the main idea of the passage? A. Plants need sunlight to grow. B. How plants make their own food and why it matters. C. Roots absorb water from the soil. D. Oxygen is released by plants. 八、完形填空（阅读下面短文，从每题所给的A、B、C、D四个选项中选出最佳答案） Plants are very clever. They can (1) ______ their own food. This process is called photosynthesis. (2) ______ a plant, the leaves are the main factory. They (3) ______ sunlight and carbon dioxide. The roots send up water. The water will (4) ______ through the stem to the leaves. Then the leaves will (5) ______ water, carbon dioxide and sunlight. They will (6) ______ sugar. Sugar is (7) ______ for the plant's growth. Another product is oxygen. The plant doesn't (8) ______ much oxygen, but it is (9) ______ for humans and animals. They need it to (10) ______. ( )1. A. make B. buy C. sell D. eat ( )2. A. At B. In C. On D. For ( )3. A. collect B. give C. send D. bring ( )4. A. rise B. fall C. run D. go ( )5. A. drink B. mix C. cook D. plant ( )6. A. produce B. waste C. throw D. borrow ( )7. A. useful B. useless C. easy D. difficult ( )8. A. need B. have C. want D. like ( )9. A. important B. special C. interesting D. heavy ( )10. A. breathe B. sleep C. play D. talk 九、阅读综合 A Green Workshop In a plant, the leaves act like green workshops. They use sunlight, water and carbon dioxide to make sugar. This sugar is the food for the plant. The leaves also produce oxygen, which is a waste product for the plant but essential for animals and humans. The roots of the plant absorb water and minerals from the soil, and transport them up to the leaves through the stem. The stem acts like a pipeline, carrying water and nutrients. Without sunlight, the plant cannot perform photosynthesis and will not produce food. That's why plants grow best in sunny places. Part A: 根据短文内容判断正（T）误（F） ( )1. Leaves are like green workshops in a plant. ( )2. Plants use oxygen to make sugar. ( )3. The roots absorb water and minerals from the soil. ( )4. The stem carries water and nutrients to the leaves. ( )5. Plants cannot make food without water. Part B: 根据短文内容回答问题（每题答案不超过6个词） 6. What do leaves use to make sugar? 7. What is the waste product for the plant? 8. Why is oxygen essential for animals and humans? 9. Where do roots get water and minerals? 10. Why do plants grow best in sunny places? 参考答案 一、单词默写 1. quarter 2. workshop 3. leaf 4. collect 5. root 6. rise 7. stem 8. mix 9. produce 10. oxygen 二、词组默写 1. green uniform 2. collect sunlight and CO₂ 3. rise up through the stem 4. mix water and CO₂ 5. mean a lot to 6. take a rest 7. natural world 8. millions of 三、根据要求完成句子 1. quarter 2. uniform 3. rise 4. mix 5. produce 四、用括号内所给词的适当形式填空 1. starts / is going to start 2. collect 3. stem 4. will mix / are going to mix 5. means 五、单项选择 1. B 2. A 3. B 4. B 5. A 六、句子翻译 1. It's a quarter past seven. 2. They collect sunlight and carbon dioxide. 3. The water will rise up through the stem. 4. The workers will mix water, CO₂ and sunlight. 5. Oxygen is very important to humans and animals. 七、阅读理解 1. C 2. B 3. C 4. B 5. B 八、完形填空 1. A 2. B 3. A 4. A 5. B 6. A 7. A 8. A 9. A 10. A 九、阅读综合 Part A: 1. T 2. F 3. T 4. T 5. T Part B: 6. Sunlight, water and CO₂. 7. Oxygen. 8. Need it to breathe. 9. From the soil. 10. Need sunlight for photosynthesis. 学科网（北京）股份有限公司 $