Unit 3 Road safety 语法+阅读+写作（同步练习）-2025-2026学年译林版（三起）英语四年级下册

**基本信息** 练习围绕“Road safety”主题，通过语法突破、阅读特训、写作提优分层设计，实现从基础语法到综合语用的巩固路径，适配单元复习需求，助力语言能力与思维品质提升。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础巩固|核心语法点（can/stay/wait用法、safe与safety辨析）|典例剖析结合反馈练习，强化单一知识点理解与应用| |能力提升|安全主题语篇阅读（校车规则、火灾预防、骑行安全）|设置★★★-★★★★难度梯度，通过判断、填空、选择等题型提升信息获取与推理能力| |综合应用|单元主题写作（Road safety及交通规则描述）|范文引导与情境写作结合，促进语言知识向语用能力转化|

Unit 3 Road safety 重难语法突破 重难精讲 重难点一：情态动词 can 的用法 [解析]can是情态动词，后面接动词原形，没有人称和数的变化。具体用法如下表： 用法 例句 can 1.表示能力/体力/知识/技能等。 I can sing French songs.我会唱法语歌曲。 2.表示请求和允许。 — Can I use your crayons? 我可以使用你的蜡笔吗? —— Yes, you can./ No, you can't. 是的，你可以。/不，你不可以。 3.表示推测，用于疑问句、否定句和感叹句中。 — What can she be doing? 她会在干什么呢? — The light is off. She can't be at home. 灯是关着的。她不可能在家。 [典例剖析]单项选择。 ( )I run fast, but I run on the busy road. A. can; can B. can't; can C. can; can't 点拨 由 but 可知前后句之间存在转折关系，故排除选项 A；根据常识可知，不应该在人来车往的道路上跑，第二个设空处应用 can't。故选 C。 [反馈练习]用can的适当形式填空。 1. you just be quiet for a while? I'm worn out(疲惫不堪) today. 2.—— Why we swim in the river? — Can't you see the sign“No swimming”? 重难点二：stay的用法 [解析]1. stay作不及物动词时，意为“停留；保持”，表示主语自身处于或继续留在某个地点、状态或情况中。①表示某人或某物继续留在某个地方不离开，后面常接地点副词(如 here, there)或介词短语(如 at home, in the city)。②与形容词或名词连用，表示继续处于某种状态或条件下。③表示某事物持续存在或有效。2. stay作为及物动词时，意为“阻止……发生/继续”“延缓”或“坚持度过”，相对不及物用法更少见和正式，后面必须有直接宾语。 [例句]1. I'm going to stay at the hotel.我打算待在旅馆里。 2. Have an apple to stay your hunger.吃个苹果垫垫肚子。 [典例剖析]单项选择。 ( ) Timmy is a nice man. He never stays for long. A. angry B. anger(怒火) C. happy 点拨 设空处所在句缺少形容词作表语，故排除选项B；又根据前句“Timmy is a nice man.”可推知, Timmy应该不会生气太长时间。故选 A。 [反馈练习]用所给词的适当形式填空。 1. The store stays (open) until late on Thursdays. 2. According to the report, the weather will stay (rain) for a week. 重难点三：wait的用法 [解析]wait意为“等候，等待”，指在相当长的一段时间内停留在某个地方，直到某事发生或某人到来为止。1. wait主要作不及物动词，常与介词 for连用，wait for sb/sth表示等待某人或某物(注意：当 for后面接的是一段时间时，这里的 for可以省略)。常用固定搭配 wait to do sth表示“等待去做某事”。2. wait 作及物动词的用法相对较少且更正式，后面直接接宾语，意为“推迟(用餐)；静候(时机)”。3. wait也可单独使用，意为“等待，稍候”，通常用于命令、请求或简单陈述一个等待的状态。 [例句]1. Some children cannot wait to grow up.有些孩子迫不及待地想长大。 2. Wait! I have something to tell you.等等!我有话要跟你说。 [典例剖析]选词填空。 Hurry up! I have been waiting (to/ for) almost two hours. 点拨 设空处后的宾语 almost two hours为一段时间,此时 wait作不及物动词,需用介词 for连接。故选 for。 [反馈练习]从方框中选择合适的内容填空。 to for / 1. We miss(错过) the train. We have to wait another one. 2.—— Why are you here? —— We are waiting take pictures with the superstar! 3. Wait ! You leave your mobile phone(手机) on the bus. 易错辨析 易错点：safe 和 safety的区别 解析 safe为形容词，意为“安全的”，常用于系动词后作表语，也可以用于名词前作定语。safety为名词，意为“安全”。 [例句]1. She doesn't feel safe on her own.她一个人待着,觉得不安全。 2. We are not prepared to compromise on safety standards.我们不愿在安全标准问题上妥协。 [典例剖析]用 safe 或 safety填空。 1. It's not to walk alone in the street late at night. 2. Schools care about children's happiness(快乐) and . 点拨：第1小题，句意为“深夜独自在街上走不安全”，句中缺少形容词作表语，设空处应用 safe。故填 safe。第2小题，and用于连接两个并列的单词，and前为形容词 happy的名词形式 happiness,则设空处也应使用名词。故填 safety。 [反馈练习]单项选择。 ( )1. Children, always remember that comes first. A. safe B. safety C. safer ( )2. Living(居住) in China, we feel happy and . A. safety B. safes C. safe 情境阅读特训 为了提高学生们的安全意识，亮亮的学校将每个月的第二周设为“安全教育周”。十一月的“安全教育周”活动开始了，一起来看看本周大家分享的安全知识吧。 一、校园警察江警官发现学生们乘坐校车时常常会出现一些危险行为，为了学生们的安全考虑，他制定了一些校车规则。阅读材料，判断下列学生的行为是(T)否 (F)符合要求。 主题：人与自我——生活与学习 话题：校车规则 体裁：应用文 难度：★★★ Many students always take the school bus to school every school day. Parents think taking the school bus is very safe. But sometimes it is also dangerous. Some students get injured(受伤) because they break the school bus rules. Here are some school bus rules: ☆Don't play around the bus station. ☆Wait for the bus in a line. ☆Take turns. The bus waits for every student. ☆Always keep your head, hands and arms inside the school bus. ☆No eating or drinking on the school bus. ☆Don't walk or fight on the bus when it is going. ☆Don't get off the bus if it doesn't stop. ( )1. Andy runs and plays at the bus station. ( )2. There are many students. Sam waits for his turn. ( )3. Lisa puts her hands outside the window of the school bus. ( )4. Coco sits quietly in her seat and eats an apple on the bus. ( )5. Leo walks towards(向) his friends when the bus is going. 二、亮亮的叔叔是一名消防队员，他将叔叔请来学校为大家科普火灾的相关知识。阅读对话，完成下列句子并回答问题。 主题：人与自我——生活与学习 话题：火灾预防及自救 体裁：记叙文 难度：★★★★ Mr Wang is Liangliang's uncle. He is a fireman(消防队员). Mr Wang: Fire is useful(有用的). But fire is dangerous too. We must be careful with fire. Kids, what shouldn't we do at home or outside? Liangliang: We shouldn't smoke(吸烟) in the forest. Tutu: We shouldn't play near fire. Diandian: We shouldn't cook without our parents. Mr Wang: Great! You know a lot about it. What can we do if there is a fire? Liangliang: We can call 119 for help. Tutu: We can cover(盖) our mouth and nose with wet clothes. Diandian: We can go outside quickly. Mr Wang: You' re so clever! Can we use the lift(电梯)? Diandian: No, we can't. We can use the stairs(楼梯). Mr Wang: Yes. Sometimes the fire is big and we can't get out. What else can we do? Nannan: We can stay in a safe place and wait for the firemen. They can help us. Mr Wang: Well done. Please remember“To stop a fire before it ever starts.” 1. Mr Wang is telling the children about fire . 2. You should cook with your and . 3. To keep safe in a fire, we can call for help. 4. If there is a fire, we can use the to go outside quickly. And don't forget to cover your and . 5. When we can't get out in a fire, what can we do to keep safe? 三、图图去年外出骑行时遭遇了交通事故，因此在医院住了一个星期。他希望给同学们科普安全骑行的知识，并提高大家骑行的安全意识。阅读材料，选择正确的答案。 主题：人与自我——生活与学习 话题：安全骑行的建议 体裁：应用文 难度：★★★ Cycling(骑自行车) is fun and good for health. However, we may hurt ourselves and others if we don't take safety seriously(严肃地). Make sure you read these pieces of safety advice before setting off on your bike! What to wear · Wear a safety helmet every time you ride. If you meet with an accident, it will save your life. · It is safer to wear elbow guards and knee guards(护肘和护膝) too. · Do not wear shorts, trousers or dresses that are too loose(宽松的) because they may get in the bicycle wheels(轮). Where to cycle · Cycle on roads with bike lanes(车道). Those are very safe. · Don't cycle on roads with“No cycling” signs. · Don't cycle in crowded(拥挤的) places. Get off and push your bicycles at such places. How to cycle safely · Don't use phones and look at your surroundings(环境) carefully. · Don't perform dangerous moves(动作). ( )1. Why should people wear a helmet when cycling? A. To look cool. B. To keep safe. C. To cycle faster. ( )2. Which can we wear when we cycle? A. Loose shorts. B. Long dresses. C. Elbow guards. ( )3. Where can we ride a bicycle? A. Roads for bicycles. B. Places with many people. C. Roads with“No cycling” signs. ( )4. It is dangerous to use phones when cycling because . A. it is fun but not healthy B. we may not look around carefully C. they may get in the bicycle wheels ( )5. Where is the material most probably from? A. A diary. B. A letter. C. A magazine. 主题写作提优 单元主题 本单元我们学习了一些交通规则，并了解了如何过马路以及如何在道路上保证安全。请运用本单元所学内容，以“Road safety”为题，向大家科普道路安全的相关知识。 思路点拨 范文欣赏 Road safety To cross the road safely, we must be very careful and follow the traffic rules. First, we should look for a pavement. Then, we should look at the traffic lights. When the traffic lights are red, we should stop and wait. When the traffic lights are green, we can cross the road. To keep safe, we should look left and right first. When you ensure(确保) there aren't any cars or bikes near you, you can cross the road. We can't run or play on the road. It is important for us to follow the rules and keep safe on the road. 同学们的上学方式多种多样，Simon提议大家应该遵守相应的交通规则。根据图片提示，描述下列同学的上学方式及他们应该遵守的交通规则。 提示词汇: zebra crossing, fasten the seat belt(系好安全带) There are 50 students in my class. We have different ways to go to school. No matter(不论) how we get to school, we should follow the traffic rules. 参考答案： 重难语法突破 重难精讲 一、1. Can't/ Can 2. can't 二、1. open 2. rainy 三、1. for 2. to 3. / 易错辨析 1. B 2. C 情境阅读特训 一、1. F 2. T 3. F 4. F 5. F 二、1. safety 2. mother/ mum, father/ dad 3. 119 4. stairs, mouth/ nose, nose/mouth 5. We can stay in a safe place and wait for the firemen. 三、1. B 2. C 3. A 4. B 5. C 主题写作提优 示例： There are 50 students in my class. We have different ways to go to school. No matter how we get to school, we should follow the traffic rules. Helen takes a school bus to school every day. She should fasten the seat belt. Tim walks to school and walks home.He must look at the traffic lights. And he should walk on the zebra crossing to cross the road. I always ride my bike to school. I should remember to wear a helmet. All of us should learn to keep safe on the road! 学科网（北京）股份有限公司 $