Unit 3 Plants and us（期中知识清单） 五年级英语下学期（北京版·新教材）

知识清单·北京版五年级下册 Unit 3 Plants and us 知识梳理 知识点拨 【考点一】 情态动词can&should 【考点二】Do型祈使句 考点一：情态动词can&should (1) —What can flowers do for us? 花能为我们做些什么？ —They can clean the air and make you feel happy. 它们能净化空气，还能让你感到心情愉悦。 (2) The roots of trees can keep the soil from washing away.树木的根系能够防止土壤被冲走。 (3) We should make friends with them. 我们应该和它们做朋友。 1. 定义： 情态动词是表示 “能力、建议、责任等” 的辅助动词，不能单独作谓语，后接动词原形。常用的情态动词有：can（能），should（应该），may（可以），must（必须）。 2. 情态动词 can 的用法： can 意为 “可以、能、会”，常用来描述事物的能力或作用。 句型：主语 + can + 动词原形。 例：Plants can make the air clean.植物能净化空气。 Trees can give us fruit and wood.树木能给我们提供果实和木材。 3. 情态动词 should 的用法： should 意为 “应该”，常用来表示建议。 （1）建议某人应该做某事： 句型：主语 + should + 动词原形。 例：We should plant more flowers. 我们应该多种花。 （2）建议某人不应该做某事： 此时 should 后面应加 not，shouldn’t 是 should not 的缩略形式，意为 “不应该”。 句型：主语 + shouldn’t + 动词原形。 拓展：也可用 “Don’t + 动词原形.” 的句型来表示不应该做某事。 例：We shouldn’t step on grass. 我们不应该践踏草地。= Don’t step on grass. 勿践踏草地。 大显身手 一、单项选择。 ( ) 1. We ______ follow these rules to protect plants. A. shouldn’t B. should C. are ( ) 2. He should ______ on both sides of the paper. A. print B. prints C. to print ( ) 3. Alice is tired. She ______ have a rest. A. can’t B. shouldn’t C. should ( ) 4. We ______ draw on the tree. We ______ plant more trees. A. shouldn’t; should B. should; shouldn’t C. should; should ( ) 5. Flowers ______ make our house more beautiful. A. should B. can C. shouldn’t 二、按要求完成各题。 6. Tim should throw rubbish everywhere.（改为否定句） Tim __________ __________ rubbish everywhere. 7. Don’t pick flowers.（改为同义句） We __________ __________ __________. 8. We shouldn’t waste paper.（改为同义句） __________ __________ paper. 9. What can trees do for us?（根据图片提示，回答问题） Trees __________ __________ us __________. 考点二：Do型祈使句 (1) Plant more trees. 多种植树木。 (2) Don’t draw on trees. 不要在树上画画。 类型 句型结构 例句 肯定句Do’s 动词原形+其他. Hurry up! 快点。 Put your hand up to speak. 发言要举手。 否定句Don’ts Don't+动词原形+其他. Don’t run in the class.不要在班里乱跑。 大显身手 一、单项选择。 ( ) 1．Don’t ______ rubbish everywhere. A．throw B．throwing C．throws ( ) 2．Please ______ forget to walk the dog tomorrow. A．not B．don’t C．doesn’t ( ) 3．Danny, please ______ run! A．don’t B．doesn’t C．not ( ) 4．______ throw waste paper on the floor. A．Don’t B．Not C．No ( ) 5．—What does that picture mean? —It means “______”. A．Be quiet. B．Don’t write. C．Mind the steps. 二、句图匹配。 6．请从方框中选择恰当的整示语，将序号填入图中合适的方框内。一个选项只能用一次。 A．Don’t swim! B．Don’t touch! C．Don’t run on the lawn! D．Don’t climb! E．Don’t litter! 三、句型转换。 7．Don't talk to your friend, Helen. (改为肯定句) ___________ to your ___________, Helen. 8．Eat in class. (用don’t改写句子) 9．Please tell her. (改为否定句) 写作指引 写作主题：介绍植物的重要性 方法步骤： 介绍植物的重要性，可按 “三步法” 写作。第一步开头，引出植物的重要性；第二步介绍，介绍植物对人类的作用；第三步结尾，表达对植物的看法，呼吁大家保护植物。 素材积累： 必备词汇 必备句型 开头 good friends, important, useful • Plants are our good friends. They are very important. 正文 作用：food, wood, medicine, keep the balance of nature, clean the air • Plants give us food, wood and medicine. • They can clean the air. • Plants help keep the balance of nature. 结尾 看法和建议：should, shouldn’t, plant trees, pick flowers, step on grass, make friends • We should plant more trees. • We shouldn’t step on grass. 小试身手： 植物在我们生活中起着重要作用，与我们的生活息息相关。你对植物有哪些了解呢？请根据提示介绍一下吧。 要求： 1. 内容不少于 5 句话（不包含已给出的句子）； 2. 条理清楚，语句通顺，书写规范。 提示： 1. How do plants help us? 2. What should we do for plants? Plants are the big part of the world. We can’t live without them. 范文： Plants are the big part of the world. We can’t live without them. First, plants help us in many ways. They make oxygen, so we can breathe fresh air. Some plants like tomatoes and carrots give us delicious food. Flowers also make our rooms look nice and our cities more beautiful. Then, we should do something for plants. We shouldn’t throw the rubbish everywhere. We should plant more plants. Plants are our good friends. Let’s take good care of them together! 综合训练 一、选出每组中不同类的一项。 ( ) 1. A. helpful B. useful C. help ( ) 2. A. woman B. teacher C. train ( ) 3. A. flowers B. summer C. winter ( ) 4. A. ninth B. fifteen C. first ( ) 5. A. eat B. tea C. drink 二、根据常识，选择与蔬菜对应的植物部位。 A．leaves B．seeds C．stems D．fruit E．roots ( ) 1． ( ) 2． ( ) 3． ( ) 4． ( ) 5． 三、选择与句意相符的图片。 A． B． C． D． E． ( ) 1. Print on both sides of the paper. ( ) 2. Don’t step on grass. ( ) 3. Don’t pick flowers. ( ) 4. Don’t throw rubbish everywhere. ( ) 5. Plant more trees. 四、从方框中选择合适的选项，补全句子。 A. love B. air C. happy D. cakes E. flower tea 1. Flowers are pretty and can make the ______ clean for us to breathe. 2. My mother likes drinking ______ made from jasmine (茉莉) flowers. 3. When we eat ______ with rose, the house smells nice. 4. The little boy feels ______ because his dad buys him a toy car. 5. We should show ______ to all flowers around us and never pick them. 五、单项选择。 ( ) 1. —Which part of the plant is the potato? —It’s the ______. A. stem B. fruit C. leaf ( ) 2. Flowers can ______ the air clean and make us happy. A. make B. take C. give ( ) 3. —What can we get from trees to eat? —We can get ______. A. wood B. apples C. paper ( ) 4. We shouldn’t ______ flowers in the park. A. grow B. pick C. plant ( ) 5. Cabbages are the ______ of plants, and they are healthy. A. leaves B. roots C. seeds 六、连词成句。 1. are, Potatoes, stems, the, of, plants (.) 2. do, for, What, us, flowers, can (?) 3. from, We, apples, get, trees (.) 4. Cabbages, the, leaves, of, plants, are (.) 5. make, air, clean, the, Trees, can (.) 七、果果邀请 Sara 来参观她的小花园。读一读，从方框中选择正确的句子补全对话。 A. What can flowers do for us? B. Welcome to my garden. C. They make us feel happy too. D. They can give us food and drink. E. I know lavender (薰衣草) can help us relax and make us sleep better. Guoguo: Hi, Sara! 1. __________ Sara: Wow. There are so many flowers. They are beautiful. Guoguo: They are not only beautiful. They are also very useful. Sara: Useful? 2. __________ Guoguo: People often give them to their family or friends to show love. Sara: What else can they do? Guoguo: 3. __________ For example, we can eat the sunflowers’ seeds as snacks. Sara: You’re right. 4. __________ My mum uses lavender sachets (香囊) in her bedroom. Guoguo: Flowers can also make our homes and parks more beautiful. 5. __________ Sara: Flowers are really useful and important to us! 八、【新语篇·日记】 阅读日记，判断下列句子正 (T) 误 (F)。 ( ) 1. Xiaohong helps her dad look after the garden.Dear Diary, Today I help my dad look after our small garden. It's so fun! First, we water the potatoes. Dad says potatoes grow under the soil, and we eat their stems. Then I pick a red tomato from the plant. It's sweet! Dad tells me tomatoes are the fruit of plants. After that, we look at the cabbages. Their green leaves are so big. I also smell the jasmine flowers nearby—they make the air smell nice. I love our garden! Yours, Xiaohong ( ) 2. Potatoes grow on the plant's branches. ( ) 3. The jasmine flowers make the air smell nice. ( ) 4. Cabbages have big and green leaves. ( ) 5. Tomatoes are the seeds of plants. 参考答案 【考点一】 1. B 2. A 3. C 4. A 5. B 6. Tim shouldn’t throw rubbish everywhere. 7. We shouldn’t pick flowers. 8. Don’t waste paper. 9. Trees can give us wood. 【考点二】 1．A 2．B 3．A 4．A 5．A 6．栅栏D，水塘A，草坪C，垃圾桶E，雕塑B。 7．Talk friend 8．Don’t eat in class. 9．Please don’t tell her. 【综合训练】 1. C 2. C 3. A 4. B 5. B 二、根据常识，选择与蔬菜对应的植物部位。 1. D 2. B 3. C 4. E 5. A 三、选择与句意相符的图片。 1. B 2. D 3. C 4. A 5. E 四、从方框中选择合适的选项，补全句子。 1. B 2. E 3. D 4. C 5. A 五、单项选择。 1. A 2. A 3. B 4. B 5. A 六、连词成句。 1. Potatoes are the stems of plants. 2. What can flowers do for us? 3. We get apples from trees. 4. Cabbages are the leaves of plants. 5. Trees can make the air clean. 七、果果邀请 Sara 来参观她的小花园。读一读，从方框中选择正确的句子补全对话。 1. B 2. A 3. D 4. E 5. C 八、【新语篇·日记】 阅读日记，判断下列句子正 (T) 误 (F)。 1. T 2. F 3. T 4. T 5. F 第 1 页 共 15 页 学科网（北京）股份有限公司 $