Unit 3 Road safety（期中知识清单）英语译林版三起四年级下册（新教材）

知识清单·译林版四年级下册 Unit 3 Road safety 知识梳理 知识点拨 ➊ 情态动词can的用法 ➋常见祈使句的用法 考点一：情态动词can的用法 (1) Great idea!We can take a bus.好主意！我们可以坐公交车。 (2) We can't cross the road now. 我们现在无法过马路。 1. can的用法：描述自己或他人具备的能力，比如会做的动作、会说的语言等，表示“能做到、会做”。 (1)基本结构：主语+ can+动词原形（+其他）。 如：You can go now. 你现在可以走了。 (2)一般疑问句：Can +主语+动词原形（+其他）？答语：Yes, I can./ No, I can't. 如：—Can you ride a bike?你会骑自行车吗？ —Yes, I can. 是的，我会。 2. can't的用法： 描述不具备的能力，或者不允许做的事，表示“不能做到、不会做”。 基本结构：主语+ can't +动词原形（+其他）。 如：You can't run in the classroom.你不能在教室里跑。 拓展：can的魔法口诀情态动词小“can”真奇妙，动词原形后面靠。变疑问时它提前，变否定“not”后面跑，人称单复数，它都不改变。 【大显身手】 一、用can或can't填空。 1. The traffic light is red. We __________ cross the road now. 2. These ducks __________ swim. 3. It's rainy. We __________ play football. 4. We __________ run in the cinema. 5. She __________ dance because she is ill. 二、情景选择。 ( )1.你想知道同桌会不会弹钢琴， 可以问：__________ A. Do you play the piano? B. Can you play the piano? C. You can play the piano. ( )2.妈妈允许你现在过马路，她会 说:__________ A. You can cross the road now. B. You can't cross the road now. C. Can you cross the road now? ( )3.你想问李老师我们在路上不能 做什么，可以说：__________ A. I can't play football on the road. B. What can we do on the road? C. What can't we do on the road? 考点二：常见祈使句的用法 Mum, let's cross the road.妈妈，我们过马路吧。 Wait. Look left and right first.请稍候。先向左右两侧观察。 祈使句主要用于命令、请求、建议或提醒，说话对象通常是“你（们）”，但句子中一般省略“你”，句子开头多为动词原形。 一、肯定型祈使句（表达直接的请求、指令或建议） 句型结构：动词原形（+其他）。 如：Open the door. 打开门。 二、否定型祈使句（禁止、提醒对方不要做某事） 句型结构：Don't+动词原形（+其他）。 如：Don't run in the hall. 别在走廊里跑。 三、Let型祈使句(提出共同做某事的建议，语气比较友好) 句型结构：Let + sb.(us/ me/ him等)+动词原形（+其他）。 如：Let me help you.让我帮你吧。 注意：Let's是Let us的缩略形式，指“包括说话人在内”。 如：Let's play football. 让我们踢足球吧。 拓展：祈使句“无主语”，动词原形开头很常见。肯定句直接“动词原形开头”，否定句前加“Don't”. Let's表示“一起做”，礼貌地请求加“please”. 【大显身手】 一、单项选择。 ( )1. __________ in the library, please. A. Not talk B. Don't talk C. Can't talk ( )2. __________ the window. It's too hot here. A. Opening B. Open C. Opens ( )3. It's a nice day. __________ go for a picnic. A. Let we B. Don't C. Let's 二、情景选择。 ( )1.在教室里，老师想让同学们看 黑板，可以说：__________ A. You can look at the light. B. Look at the blackboard, class. C. Don't look at the blackboard. ( )2.你的朋友想在博物馆里拍照， 但那里有禁止拍照的标志，你 可以对他说：__________ A. Don't take pictures here. B. You can take pictures. C. Let's take a picture. ( )3.你想向朋友提议周末一起去放 风筝，可以说：__________ A. I want to fly a kite this weekend. B. Let's fly a kite this weekend. C. Do you fly a kite? 写作指引 本单元核心围绕Road safety（道路安全） 展开，写作重点是让学生能用简单的英语句子介绍道路安全规则、描述如何安全过马路，培养用英语表达交通规则和安全行为的能力。 一、写作指导 1. 审题立意：明确写作主题是 “道路安全”，核心是 “用本单元句型介绍过马路的安全做法、遵守的交通规则”。 2. 梳理素材：结合本单元所学和生活实际，梳理 3-4 个核心安全行为，如等绿灯、左右看、不跑跳、跟紧大人等。 3. 组织表达：用本单元的can/can't、祈使句、过马路指令句型，将安全做法转化为简单通顺的英语句子，避免复杂表达。 二、写作结构 1. 第一段：开头（总起，点明道路安全的重要性） 示例：Road safety is very important. We must keep safe on the road. 示例：We need to follow traffic rules to keep safe on the road. 2. 第二段：中间（分述，介绍过马路的具体安全做法） 示例：We must wait for the green light. We look left and right first. We don't run on the road. 三、必用核心句型 1. We can/can't + 动词原形. （表达能 / 不能做的行为） 例句：We can cross the road when the light is green. 2. Don't + 动词原形 + 其他. （表达禁止的行为） 例句：Don't run on the road. 3. Wait for.../Look...first. （表达过马路的指令） 例句：Wait for the green light. Look left and right first. 4. It's + 形容词 + to do sth. （表达做某事的属性） 例句：It's safe to walk slowly on the road. 四、写作范文 范文 1：How to keep safe on the road Road safety is very important for us. We must keep safe on the road. When we cross the road, we wait for the green light first. We look left and right carefully. We don't run on the road. It's not safe. We stay close to our parents on the busy road. Follow the traffic rules, and we can be safe. 范文 2：My road safety tips I know many traffic rules for road safety. First, we can't cross the road at the red light. We must wait for the green light. Second, we look left and right before crossing the road. Third, don't run or play on the road. The road is for cars and buses. It's dangerous. We all need to follow the rules. 综合训练 一、读一读，根据句意从方框中选择含有与画线字母相同发音的单词，补全句子，注意大小写。 road so robot cold close home rope 1. Oh! Don't jump the __________ on the __________. 2. I'm __________. __________ the window, please. 3. Look, Leo! The traffic is __________ busy. 4. The __________ in the __________ is alone. 二、根据描述选择对应的标识。 A. B. C. D. ( )1. Do not honk（鸣笛）. ( )2. There is a school nearby. ( )3. Yield to pedestrians（行人）. ( )4. Look at the traffic lights! 三、用所给单词的适当形式填空。 1.I want __________(ride) a bike in Wujiang East Taihu Ecological Park. Let's __________(go) there together. 2.I see many __________(bus) on the road. 3.The traffic lights are yellow. We __________(can) go. 4.Don't __________(run) on the road. 5.The bus driver __________(wait) for the old man as he walks across the road. 6.Today is my father's birthday. Let __________(I) give __________(he) a present. 7. There __________(be) a bus and many cars at the bus stop. 四、根据首字母或图片完成对话。 Liu Tao: Dad, the traffic is b__________ today. Father: Yes, Taotao. Look at the lights. Can we c__________ the road now? Liu Tao: No, they're yellow. Let's w__________ for the green ones. Father: You're right. What does the sign m__________? Liu Tao: We c__________ go this way! Father: Can we park the car here? Liu Tao: No, park our car near the s__________. I see the sign. Father: Great! Taotao, you know some useful r__________ and signs. 五、根据句意和所给提示，完成句子。 1.S__________！The traffic lights are r__________.We can't cross the r __________ now. 2.Don't r__________,Bob.Let's follow the l__________ rules. 3.We should look l__________ and r__________ first. 4.Please get on the __________ one by one. 六、单项选择。 ( )1.The boy waits __________ the pavement __________ his mum. A.on; on B.for; for C.on; for D.for; on ( )2.—We can walk now！It's __________. —OK！ A.safe B.not safe C.dangerous D.late ( )3.—__________ can we keep safe on the road? —Follow the traffic rules. A.What B.How C.Where D.Who ( )4.You're __________ years old.You can ride a bike to school. A.eight B.six C.twelve D.eleven 七、从方框中选择正确的单词并用其适当形式填空。(每题限用一词) be safe play go they 1.We keep __________ on the road,because __________ is very important. 2.Let __________ go first.We can wait. 3.Stop __________ football by the road. 4.It's very early in the morning.The traffic __________ busy. 5.Look！The traffic lights are green.We can __________. 八、给下列句子选择相符的图片。 ( )1. Please wait for the green traffic light. ( )2. Don't turn right. ( )3. You can turn left here. ( )4. Wait. Look left and right first. ( )5. Let's cross the road now. 九、连词成句，补全对话。 A: How do you cross the road? B: First,1.________________________________________(a, look, crossing, for, zebra). Then, 2.__________________________________________________(the, look, and, green, at, wait, for, traffic, light, the, traffic, lights). A: Can I go now? B: No.3. ________________________________________(see, can, red, the, traffic, you, light)? You can't cross the road now. A: When can I go? B: Look!4. ________________________________________(the, traffic, green, here, is, light). You can cross the road now. A: Thank you. B: You are welcome. 十、阅读对话，选择正确的答案。 Tom: Excuse me. Where is Four Seasons Hotel（宾馆）? Man: Let me see. It is on Beijing Road. Tom: Is it far from here? Man: No. It is not far from here. You can go there on foot. Tom: But how can I get there? Man: Go along this road. And turn left at the first crossing. The hotel is on your right. You can't miss it. Tom: Thank you very much. Man: You're welcome. ( )1. Tom wants to go to the __________. A. bookshop B. cinema C. hotel ( )2. Four Seasons Hotel is on __________. A. Beijing Road B. Shanghai Road C. Tianjin Road ( )3. Tom can go to Four Seasons Hotel __________. A. by bus B. on foot C. by bike ( )4. Tom needs（需）to turn left at the __________ crossing. A. first B. second C. third 参考答案 考点一：情态动词can的用法 一、1. can't 2. can 3. can't 4. can't 5. can't 二、1. B 2. A 3. C 考点二：常见祈使句的用法 一、1. B 2. B 3. C 二、1. B 2. A 3. B 综合训练参考答案 一、1. rope; road 2. cold; Close 3. so 4. robot; home 二、1. D 2. C 3. A 4. B 三、1. to ride; go 2. buses 3. can't 4. run 5. waits 6. me; him 7. is 四、busy; cross; wait; mean; can't; shop; rules 五、1. Stop; red; road 2. run; library 3. left; right 4. bus 六、1. C 2. A 3. B 4. C 七、1. safe; safety 2. them 3. playing 4. isn't 5. go 八、1.D 2.E 3.A 4.B 5.C 九、1.look for a zebra crossing 2.look at the traffic lights and wait for the green traffic light 3.Can you see the red traffic light 4.Here is the green traffic light 十、1.C 解析：根据“Tom: Excuse me. Where is Four Seasons Hotel?”可知, Tom想去宾馆。 2.A 解析：根据“Man: Let me see. It is on Beijing Road.”可知, Four Seasons Hotel 在北京路。 3.B 解析：根据“You can go there on foot.”可知, Tom可以步行去。 4.A 解析：根据“Man: Go along this road. And turn left at the first crossing.”可知, Tom须在第一个十字路口左转。 第 1 页 共 13 页 学科网（北京）股份有限公司 $