Unit 4 Safety first 选择题（专项练习）-2026-2027学年译林版（三起）英语五年级上册

**基本信息** 聚焦安全场景下情态动词应用，通过情景对话巩固语法知识，提升语言运用与安全规则理解能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |情态动词|28题（如1-8题）|对话/情景描述，选项为should/shouldn't/can|安全规则→行为判断→情态动词选择| |动词形式|5题（如2、4、20题）|考查should后接原形、固定搭配（keep to the right）|语法规则→动词应用→语境匹配| |情景理解|7题（如9、11、28题）|结合标志/场景（游泳池、医院）选行为|场景特征→安全常识→语言表达|

《Unit 4 Safety first》选择题专项练习 单选题（共40道） （ ） 1. — We ______ run in the classroom. It's not safe. · — I know, Miss Li. · A. should · B. shouldn't · C. can · D. don't （ ） 2. You should ______ warm up before you run on the sports ground. · A. / · B. to · C. do · D. doing （ ） 3. — Look! The boys are pushing each other on the stairs. · — We ______ do that. It's dangerous. · A. should · B. can · C. shouldn't · D. must （ ） 4. Please ______ to the right when you walk up the stairs at school. · A. keep · B. keeping · C. keeps · D. kept （ ） 5. — What should we do to keep safe in PE class? · — We ______ push our classmates. · A. should · B. shouldn't · C. need · D. can （ ） 6. You ______ sit down right after running. Please walk slowly for a minute first. · A. shouldn't · B. should · C. can · D. mustn't （ ） 7. — My leg hurts after jumping in the classroom. · — You ______ jump in the classroom next time. · A. should · B. can · C. shouldn't · D. will （ ） 8. We ______ climb trees in the park. It's not safe for kids. · A. should · B. shouldn't · C. can · D. need （ ） 9. When you go to the swimming pool, you should ______ first to avoid getting hurt. · A. warm up · B. jump into water · C. run around · D. eat snacks （ ） 10. — ______ we talk quietly in the library? · — Yes, you should keep quiet there. · A. Must · B. Should · C. Do · D. Are （ ） 11. The sign says "Don't pull the door". It means we ______ pull the door. · A. should · B. shouldn't · C. can · D. needn't （ ） 12. — What should we do when we see an old man on the street? · — We ______ help him if he needs help. · A. shouldn't · B. should · C. can't · D. mustn't （ ） 13. You ______ listen to your teacher carefully in class. It's a good habit. · A. shouldn't · B. can · C. should · D. may （ ） 14. — Can we swim in the river near our school? · — No, we ______. It's very dangerous. · A. should · B. shouldn't · C. could · D. need （ ） 15. Please move out of the way when someone is walking behind you. That means you ______ block others. · A. should · B. shouldn't · C. can · D. must （ ） 16. — ______ we clean our classroom every day? · — Yes, it's our duty to keep the classroom tidy. · A. Do · B. Should · C. Must · D. Can （ ） 17. The boy is crying because his friend ______ his clothes just now. · A. pulls · B. pulled · C. pull · D. pulling （ ） 18. — You look tired. · — I ______ study late last night. · A. should · B. shouldn't · C. can · D. must （ ） 19. We ______ play football in the hallway. It's easy to knock into someone. · A. should · B. shouldn't · C. can · D. need （ ） 20. When you have a PE class, you should ______ the teacher's instructions. · A. listen · B. listen to · C. hear · D. hear to （ ） 21. — ______ I use your dictionary? · — Sure, here you are. · A. Should · B. Must · C. Can · D. Do （ ） 22. You ______ eat too much junk food. It's bad for your health. · A. should · B. shouldn't · C. can · D. need （ ） 23. The sign "No climbing" tells us that we ______ climb the wall here. · A. should · B. shouldn't · C. could · D. may （ ） 24. — How can we keep safe at school? · — We ______ follow the school rules. · A. shouldn't · B. should · C. can't · D. may （ ） 25. — Don't run on the wet floor! · — Oh, I ______ do that again. · A. should · B. shouldn't · C. can · D. must （ ） 26. We ______ keep our classroom clean and tidy every day. · A. should · B. shouldn't · C. can · D. need （ ） 27. — What should we do when we meet a traffic light? · — We ______ cross the street when the light is red. · A. should · B. shouldn't · C. can · D. must （ ） 28. The little girl is afraid because she ______ get out of the small room. · A. can't · B. shouldn't · C. should · D. must （ ） 29. You ______ talk loudly in the hospital. It's not polite. · A. should · B. shouldn't · C. can · D. need （ ） 30. — ______ we go swimming this afternoon? · — Good idea! But we should remember the safety rules first. · A. Must · B. Should · C. Can · D. Do （ ） 31. When you do exercise, you should ______ carefully to avoid getting hurt. · A. do · B. doing · C. did · D. done （ ） 32. — My mother tells me I ______ watch TV too much. · — Yes, it's bad for your eyes. · A. should · B. shouldn't · C. can · D. must （ ） 33. The sign "No parking" means we ______ park our cars here. · A. should · B. shouldn't · C. can · D. need （ ） 34. — What should we do to keep safe in the park? · — We ______ climb the tall trees. · A. should · B. shouldn't · C. can · D. must （ ） 35. You ______ listen to your parents' advice. They know what's good for you. · A. shouldn't · B. should · C. can't · D. may （ ） 36. — Can I ride my bike on the sidewalk? · — No, you ______. It's for pedestrians only. · A. should · B. shouldn't · C. could · D. need （ ） 37. We ______ help each other when our classmates are in trouble. · A. should · B. shouldn't · C. can't · D. mustn't （ ） 38. — You look unhappy. What's wrong? · — I ______ break the glass just now. My teacher is angry. · A. should · B. shouldn't · C. can · D. must （ ） 39. When you go upstairs, you should ______ to the right. · A. keep · B. keeping · C. keeps · D. kept （ ） 40. — ______ we wear helmets when we ride bikes? · — Yes, it's a must to keep safe. · A. Should · B. Must · C. Can · D. Do 《Unit 4 Safety first》答案解析 单选题 1. 【答案】B · 【解析】根据句意“我们不应该在教室里跑，这不安全”，shouldn't表示“不应该”，符合语境。 1. 【答案】A · 【解析】should后接动词原形，warm up是固定短语，意为“热身”，此处直接用原形即可，无需加其他词。 1. 【答案】C · 【解析】上文提到男孩们在楼梯上推搡，下文表示“我们不应该这么做，很危险”，shouldn't符合语义。 1. 【答案】A · 【解析】should后接动词原形，keep to the right是固定搭配，意为“靠右边走”。 1. 【答案】B · 【解析】体育课上不应该推同学，用shouldn't表达禁止的建议。 1. 【答案】A · 【解析】句意为“跑步后不应该立刻坐下，请先慢慢走一会儿”，shouldn't符合逻辑。 1. 【答案】C · 【解析】在教室跳导致腿受伤，说明下次不应该这么做，用shouldn't。 1. 【答案】B · 【解析】在公园里爬树不安全，所以不应该做，用shouldn't。 1. 【答案】A · 【解析】去游泳池应该先热身，避免受伤，warm up符合场景要求。 1. 【答案】B · 【解析】询问在图书馆是否应该保持安静，用should提问符合建议的语境。 1. 【答案】B · 【解析】“不要拉门”意味着不应该拉门，shouldn't对应标志的含义。 1. 【答案】B · 【解析】看到老人需要帮助时应该帮忙，should表达建议和义务。 1. 【答案】C · 【解析】课堂上应该认真听老师讲课，是好习惯，用should。 1. 【答案】B · 【解析】不能在学校附近的河里游泳，很危险，shouldn't表示禁止。 1. 【答案】B · 【解析】给别人让路意味着不应该挡路，shouldn't符合语义。 1. 【答案】B · 【解析】询问是否应该每天打扫教室，should用于提出建议或义务。 1. 【答案】B · 【解析】just now是过去时间状语，动词用过去式pulled。 1. 【答案】B · 【解析】昨晚熬夜学习不好，所以不应该这么做，shouldn't符合语境。 1. 【答案】B · 【解析】在走廊踢足球容易撞到人，不应该这么做，用shouldn't。 1. 【答案】B · 【解析】listen to是固定搭配，意为“听……的指令”，符合句意。 1. 【答案】C · 【解析】询问是否可以用对方的字典，can表示请求许可。 1. 【答案】B · 【解析】不应该吃太多垃圾食品，对健康有害，shouldn't符合语义。 1. 【答案】B · 【解析】“禁止攀爬”标志表示不应该爬墙，shouldn't对应标志含义。 1. 【答案】B · 【解析】在学校应该遵守校规，should表达应该做的事。 1. 【答案】B · 【解析】被提醒不要在湿地板上跑，回应说不会再这么做了，shouldn't符合逻辑。 1. 【答案】A · 【解析】应该每天保持教室整洁，should表达义务。 1. 【答案】B · 【解析】红灯时不应该过马路，shouldn't表示禁止。 1. 【答案】A · 【解析】小女孩害怕是因为她不能从小房间里出去，can't表示不能够。 1. 【答案】B · 【解析】在医院不应该大声说话，不礼貌，shouldn't符合语境。 1. 【答案】C · 【解析】询问今天下午能不能去游泳，can表示请求许可，后文回应好主意符合逻辑。 1. 【答案】A · 【解析】should后接动词原形，do exercise意为“做锻炼”。 1. 【答案】B · 【解析】妈妈告诉自己不应该看太多电视，对眼睛不好，shouldn't符合语义。 1. 【答案】B · 【解析】“禁止停车”标志表示不应该在这里停车，shouldn't对应标志含义。 1. 【答案】B · 【解析】在公园里不应该爬高树，不安全，shouldn't符合逻辑。 1. 【答案】B · 【解析】应该听父母的建议，他们知道什么对自己好，should表达建议。 1. 【答案】B · 【解析】不能在人行道上骑自行车，那是给行人的，shouldn't表示禁止。 1. 【答案】A · 【解析】同学遇到困难时应该互相帮助，should表达应该做的事。 1. 【答案】B · 【解析】刚才打碎了玻璃，老师生气了，说明不应该这么做，shouldn't符合语境。 1. 【答案】A · 【解析】should后接动词原形，keep to the right意为“靠右边走”。 1. 【答案】A · 【解析】询问骑自行车是否应该戴头盔，should用于提出建议或义务，后文提到是安全必备符合逻辑。 学科网（北京）股份有限公司 $