Unit 2 Stay Safe and Healthy单元知识总结及重点易错（专项训练）-2026-2027学年北京版英语六年级上册

**基本信息** 小学英语六年级上册Unit 2专项训练，聚焦10大易错考点，通过基础-提升-拓展三级训练，系统强化安全健康主题语言知识与语法应用。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |单元核心梳理|4类核心知识|无|从单词、短语到句型、语法，构建主题语言体系| |10大易错考点|90题（每考点9题）|情态动词用法、祈使句结构等规则提炼|语法点由浅入深，从单一规则到综合应用，培养语言能力与思维品质|

北京版 六年级上册 · Unit 2 Stay Safe and Healthy ｜ 重点知识 & 易错考点专项训练 北京版 六年级上册Unit 2 Stay Safe and Healthy 单元知识总结及重点易错专项训练 ■ ■ ■ ■ ■ ■ ■ 说明：本练习紧扣最新教材精选 10 个重点易错考点，每个考点含基础题×3、提升题×3、拓展题×3，共 90 题。 📚 第一部分：单元核心梳理 ★ 重点单词（Word Bank） safety 安全, safe 安全的, dangerous 危险的, healthy 健康的, health 健康, wash 洗, exercise 锻炼, brush 刷, teeth 牙齿 (tooth复数), careful 小心的, rule 规则, cross 穿过, street 街道, traffic 交通, light 灯, accident 事故, hurt 伤害, ambulance 救护车, fire 火, police 警察 ★ 重点短语（Key Phrases） stay safe 保持安全, keep healthy 保持健康, wash hands 洗手, brush teeth 刷牙, do exercise 做运动, be careful 小心, cross the street 过马路, traffic lights 交通灯, fire engine 消防车, call 119 拨打119, go to hospital 去医院, have an accident 出事故, follow the rules 遵守规则, on foot 步行, by bus 乘公共汽车 ★ 重点句型（Key Sentences） You should wash your hands. 你应该洗手。 You shouldn't eat too much candy. 你不应该吃太多糖果。 Don't run in the hallway. 不要在走廊里跑。 We must stop at the red light. 我们必须在红灯处停下。 Can you swim? — Yes, I can. 你会游泳吗？——是的，我会。 How can we stay safe? 我们怎样才能保持安全？ It's important to exercise every day. 每天锻炼很重要。 Let's cross the street together. 我们一起过马路吧。 If there is a fire, call 119. 如果发生火灾，拨打119。 Wear a helmet when you ride a bike. 骑自行车时戴头盔。 ★ 重点语法（Grammar Focus） ① should/shouldn't + 动词原形（建议，后不接to） ② 祈使句：动词原形开头 / Don't... / Let's... / Please... ③ must/mustn't + 动词原形（必须/禁止，语气强） ④ can/can't + 动词原形（表能力，无人称变化） ⑤ 频度副词：always>usually>often>sometimes>never 位置在be后/实义动词前 ⑥ 一般现在时三单变化：wash→washes, brush→brushes, cross→crosses ⑦ be going to + 动词原形（表将来计划） ⑧ be careful / be safe / be healthy + to do ⑨ if 引导条件句：If there is a fire, call 119. ⑩ 综合：安全规则与健康习惯的全流程表达 📝 第二部分：10大易错考点专项训练 考点1：考点一：should / shouldn't + 动词原形（建议句型，后不接to） 考点一：should / shouldn't + 动词原形（建议句型，后不接to） ◇ 基础题：（选择题） ◇（ ）You ____ wash your hands before meals. A. should B. shouldn't C. are ◇（ ）We ____ eat too much junk food. It's bad for health. A. should B. can C. shouldn't ◇（ ）Zhang Hao ____ drink more water every day. A. should B. should to C. shoulds ▷ 提升题：（选择题） ▷（ ）Chen Wei has a cold. The doctor says he ____ go to school today. A. should B. shouldn't C. is ▷（ ）Which is WRONG? A. You should listen. B. You should to listen. C. You shouldn't shout. ▷（ ）Lily is tired. She ____ rest for a while. A. should B. shouldn't C. don't ★ 拓展题：（选择题） ★（ ）The rule: after 'should/shouldn't', the verb must be in ____. A. -s form B. -ing form C. original form ★（ ）In Qingdao, the teacher says students ____ be careful when crossing streets. A. should B. shouldn't C. are ★（ ）Transform: 'You should to help him.' → Correct: 'You ____ help him.' A. should B. should to C. ought 考点2：考点二：祈使句（动词原形开头 / Don't... / Let's... / Please...） 考点二：祈使句（动词原形开头 / Don't... / Let's... / Please...） ◇ 基础题：（选择题） ◇（ ）____ careful when you cross the street. A. Be B. Are C. Is ◇（ ）____ run in the hallway. It's dangerous. A. Not B. Don't C. Doesn't ◇（ ）____ play football in the street. A. Not B. Don't C. Doesn't ▷ 提升题：（选择题） ▷（ ）Zhou Kai, ____ me clean the classroom. A. helps B. help C. to help ▷（ ）Which is a correct imperative sentence? A. You are quiet. B. Be quiet! C. He is quiet. ▷（ ）Jam, ____ late for school again. A. don't be B. doesn't be C. not be ★ 拓展题：（选择题） ★（ ）The structure of a negative imperative: ____ + verb (base form). A. Don't B. Doesn't C. Not ★（ ）In Wuhan, the teacher always says '____ to school on time!' A. Come B. Comes C. Coming ★（ ）Identify the imperative: '____ we cross the street now.' A. Let's B. Lets C. Let 考点3：考点三：must / mustn't + 动词原形（必须/禁止，语气强于should） 考点三：must / mustn't + 动词原形（必须/禁止，语气强于should） ◇ 基础题：（选择题） ◇（ ）We ____ stop at the red traffic light. A. must B. mustn't C. should ◇（ ）You ____ play with fire. It's very dangerous. A. must B. mustn't C. can ◇（ ）Olivia ____ wear a helmet when riding a bike. A. must B. mustn't C. are ▷ 提升题：（选择题） ▷（ ）Chen Wei is only 7. He ____ cross the street alone. A. must B. mustn't C. can ▷（ ）Which is WRONG? A. You must stop. B. You mustn't smoke. C. You must to go. ▷（ ）In an emergency, you ____ call 120 for help. A. must B. mustn't C. don't ★ 拓展题：（选择题） ★（ ）The difference: 'must' is ____ than 'should'. A. the same B. weaker C. stronger ★（ ）In Xiamen, the rule says tourists ____ feed the wild animals. A. must B. mustn't C. should ★（ ）Transform: 'You must to be careful.' → Correct: 'You ____ be careful.' A. must B. must to C. should to 考点4：考点四：can / can't + 动词原形（表能力，无人称变化） 考点四：can / can't + 动词原形（表能力，无人称变化） ◇ 基础题：（选择题） ◇（ ）Jam ____ swim very well. A. can B. cans C. can to ◇（ ）Zhang Hao ____ ride a bicycle. He is too young. A. can B. can't C. cans ◇（ ）____ you help me, please? A. Can B. Are C. Do ▷ 提升题：（选择题） ▷（ ）Chen Wei and Jam ____ both play basketball. A. can B. cans C. can to ▷（ ）Which is WRONG? A. She can swim. B. She cans swim. C. They can run. ▷（ ）Bella ____ reach the top shelf. It's too high. A. can B. can't C. cans ★ 拓展题：（选择题） ★（ ）The rule: modal verbs like 'can' have ____ forms. A. five B. many C. no ★（ ）In Jinan, the PE teacher asks '____ you jump high?' A. Can B. Are C. Do ★（ ）Transform: 'She can to dance.' → Correct: 'She ____ dance.' A. can B. can to C. cans 考点5：考点五：频度副词（always>usually>often>sometimes>never 位置在be后/实义动词前） 考点五：频度副词（always>usually>often>somtimes>never 位置在be后/实义动词前） ◇ 基础题：（选择题） ◇（ ）Olivia ____ brushes her teeth before bed. A. always B. is always C. always is ◇（ ）Jam is ____ late for school. A. never B. is never C. never is ◇（ ）We ____ exercise in the morning. A. usually B. are usually C. usually are ▷ 提升题：（选择题） ▷（ ）Which sentence is RIGHT? A. She always is happy. B. She is always happy. C. Always she is happy. ▷（ ）Chen Wei ____ goes to school by bus. A. often B. is often C. often is ▷（ ）Put the adverb in the correct place: 'They ____ play football.' (usually) A. usually play B. play usually C. are usually play ★ 拓展题：（选择题） ★（ ）The order from most to least frequent: ____ > usually > often > sometimes > never. A. always B. seldom C. ever ★（ ）In Kunming, the students ____ do morning exercises. (always) A. always do B. do always C. are always do ★（ ）Identify the error: 'She is never late.' → Correct position? A. She never is late. B. She is never late. C. Never she is late. 考点6：考点六：一般现在时三单变化（wash→washes, brush→brushes, cross→crosses） 考点六：一般现在时三单变化（wash→washes, brush→brushes, cross→crosses） ◇ 基础题：（选择题） ◇（ ）She ____ her hands before every meal. A. wash B. washes C. washing ◇（ ）Jam ____ his teeth twice a day. A. brush B. brushes C. brushing ◇（ ）Zhang Hao ____ the street carefully. A. cross B. crosses C. crossing ▷ 提升题：（选择题） ▷（ ）Which is WRONG? A. He wash his face. B. She washes her face. C. They wash their faces. ▷（ ）Chen Wei always ____ healthy food. A. eats B. eating C. eat ▷（ ）Bella ____ exercise every morning. A. do B. does C. doing ★ 拓展题：（选择题） ★（ ）The rule: for verbs ending in -sh/-ch/-ss/-x, add ____ for 3rd person. A. -ies B. -s C. -es ★（ ）In Qingdao, the teacher says 'He ____ to school on foot.' A. go B. goes C. going ★（ ）Transform: 'They watch TV.' → She ____ TV. A. watch B. watches C. watching 考点7：考点七：be going to + 动词原形（表将来计划/打算） 考点七：be going to + 动词原形（表将来计划/打算） ◇ 基础题：（选择题） ◇（ ）I ____ going to visit my grandparents this weekend. A. am B. is C. are ◇（ ）Chen Wei ____ going to play football after school. A. am B. is C. are ◇（ ）They ____ going to clean the classroom. A. am B. is C. are ▷ 提升题：（选择题） ▷（ ）Which is WRONG? A. I am going to swim. B. She is going to run. C. They is going to jump. ▷（ ）Olivia ____ going to be a doctor when she grows up. A. am B. is C. are ▷（ ）Jam and I ____ going to the park tomorrow. A. am B. is C. are ★ 拓展题：（选择题） ★（ ）The structure: subject + ____ + going to + verb (base form). A. am/is/are B. do/does C. will ★（ ）In Wuhan, the kids say 'We ____ going to swim in summer.' A. am B. is C. are ★（ ）Transform: 'She goes to school.' → Future: 'She ____ going to school.' A. am B. is C. are 考点8：考点八：be careful / be safe / be healthy + to do（系表结构+不定式） 考点八：be careful / be safe / be healthy + to do（系表结构+不定式） ◇ 基础题：（选择题） ◇（ ）You must ____ careful when crossing the street. A. are B. is C. be ◇（ ）We should ____ safe at school. A. are B. is C. be ◇（ ）Zhou Kai wants to ____ healthy. A. are B. is C. be ▷ 提升题：（选择题） ▷（ ）It's important ____ careful with fire. A. are B. is C. to be ▷（ ）Which is WRONG? A. Be careful! B. Be safe! C. Are careful! ▷（ ）Chen Wei learns ____ safe on the road. A. are B. is C. to be ★ 拓展题：（选择题） ★（ ）The pattern: 'be' + adjective (careful/safe/healthy) is called a ____ structure. A. preposition B. verb-adverb C. linking-verb ★（ ）In Xiamen, the slogan says '____ healthy, be happy!' A. Are B. Is C. Be ★（ ）Transform: 'She is careful.' → Imperative: '____ careful!' A. Are B. Is C. Be 考点9：考点九：Don't + 动词原形（否定祈使句，表禁止） 考点九：Don't + 动词原形（否定祈使句，表禁止） ◇ 基础题：（选择题） ◇（ ）____ make noise in the library. A. Not B. Don't C. Doesn't ◇（ ）____ touch the hot stove. It's dangerous. A. Not B. Don't C. Doesn't ◇（ ）____ waste water. We should save it. A. Not B. Don't C. Doesn't ▷ 提升题：（选择题） ▷（ ）Olivia, ____ late for class again. A. don't be B. doesn't be C. not be ▷（ ）Which is WRONG? A. Don't run! B. Don't to run! C. Don't eat too much! ▷（ ）Chen Wei, ____ afraid of the dog. It's friendly. A. don't be B. doesn't be C. not be ★ 拓展题：（选择题） ★（ ）The full form of 'Don't' is '____'. A. Does not B. Did not C. Do not ★（ ）In Jinan, the sign says '____ climb the fence!' A. Not B. Don't C. Doesn't ★（ ）Transform: 'You must not touch it.' → Imperative: '____ touch it!' A. Not B. Don't C. Doesn't 考点10：考点十：综合辨析（安全规则+健康习惯全流程表达） 考点十：综合辨析（安全规则+健康习惯全流程表达） ◇ 基础题：（选择题） ◇（ ）If there is a fire, you ____ call 119. A. should B. shouldn't C. don't ◇（ ）We ____ cross the street when the light is red. A. can B. mustn't C. should ◇（ ）To stay healthy, Olivia ____ every day. A. exercise B. exercises C. exercising ▷ 提升题：（选择题） ▷（ ）Which sentence is the BEST advice for road safety? A. You should be careful. B. You mustn't run on the road. C. Both A and B. ▷（ ）Zhou Kai always brushes his teeth before bed. He ____ a good habit. A. have B. has C. is ▷（ ）Put the words in order: always / careful / be / must / You A. You must always be careful. B. You always must be careful. C. Always you must be careful. ★ 拓展题：（选择题） ★（ ）The best title for this unit's topic is: '____'. A. Go to School B. How to Play C. Stay Safe and Healthy ★（ ）In Kunming, the school motto is '____ safe, be healthy!' A. Are B. Is C. Be ★（ ）Which is the MOST complete safety rule? A. Don't run. B. Be careful on the road. C. Stop at red lights, look both ways before crossing. 📋 第三部分：参考答案与详细解析 考点1 参考答案与解析 ◇（ ）1 答案：A 📖 解析：should后接动词原形wash，表示'应该洗手'。are是be动词，不能接动词原形。 ◇（ ）2 答案：C 📖 解析： junk food对健康有害，所以'shouldn't eat'（不应该吃）。should后接动词原形。 ◇（ ）3 答案：A 📖 解析：should是情态动词，后接动词原形drink，没有人称变化，不接to。 ▷（ ）1 答案：B 📖 解析：感冒了医生会说'shouldn't go'（不应该去学校），避免传染他人。 ▷（ ）2 答案：B 📖 解析：should后必须接动词原形，不能加to。B选项'should to listen'是错误的。 ▷（ ）3 答案：A 📖 解析：累了就应该休息，用should+动词原形rest。should没有人称变化。 ★（ ）1 答案：C 📖 解析：should/shouldn't是情态动词，后面永远跟动词原形（original form），不变化。 ★（ ）2 答案：A 📖 解析：过马路时'should be careful'（应该小心），should后接be动词原形。 ★（ ）3 答案：A 📖 解析：should后不接to，直接加动词原形。正确：You should help him. 考点2 参考答案与解析 ◇（ ）1 答案：A 📖 解析：祈使句以动词原形开头，Be careful = 小心（表命令/提醒）。 ◇（ ）2 答案：B 📖 解析：否定祈使句用Don't + 动词原形run。Not不能单独用于句首。 ◇（ ）3 答案：B 📖 解析：Don't play = 不要在街上踢足球。Don't后接动词原形。 ▷（ ）1 答案：B 📖 解析：祈使句用动词原形help开头。helps是三单形式，不能用于祈使句。 ▷（ ）2 答案：B 📖 解析：祈使句直接用动词原形Be开头，省略主语。A和C都是陈述句。 ▷（ ）3 答案：A 📖 解析：Don't be late = 不要迟到。Don't后接be动词原形，不是doesn't。 ★（ ）1 答案：A 📖 解析：否定祈使句结构：Don't + 动词原形。Don't = Do not 的缩写。 ★（ ）2 答案：A 📖 解析：祈使句用动词原形Come开头，表示'准时来学校！'。 ★（ ）3 答案：A 📖 解析：Let's = Let us 的缩写，用于提议'让我们...'。Lets不是正确缩写形式。 考点3 参考答案与解析 ◇（ ）1 答案：A 📖 解析：红灯必须停下，用must表示强烈的'必须'。must后接动词原形stop。 ◇（ ）2 答案：B 📖 解析：玩火非常危险，用mustn't表示'禁止'。mustn't = must not。 ◇（ ）3 答案：A 📖 解析：骑自行车必须戴头盔，用must表示法律/安全规定的'必须'。 ▷（ ）1 答案：B 📖 解析：7岁小孩禁止独自过马路，用mustn't表示'不允许/禁止'。 ▷（ ）2 答案：C 📖 解析：must后接动词原形，不接to。C选项'must to go'错误。 ▷（ ）3 答案：A 📖 解析：紧急情况必须拨打120求助，用must表示'必须'。 ★（ ）1 答案：C 📖 解析：must语气比should更强。must=必须/禁止，should=应该/不应该（建议）。 ★（ ）2 答案：B 📖 解析：禁止投喂野生动物，用mustn't表示'绝对不可以'。 ★（ ）3 答案：A 📖 解析：must后不接to，直接加动词原形。正确：You must be careful. 考点4 参考答案与解析 ◇（ ）1 答案：A 📖 解析：can是情态动词，后接动词原形swim，没有人称变化（不说cans）。 ◇（ ）2 答案：B 📖 解析：太小了不会骑自行车，用can't。can't = can not，后接动词原形。 ◇（ ）3 答案：A 📖 解析：Can you help me? = 你能帮我吗？can表能力，后接动词原形help。 ▷（ ）1 答案：A 📖 解析：复数主语仍用can，情态动词无人称变化。can后接动词原形play。 ▷（ ）2 答案：B 📖 解析：can没有人称变化，不说cans。B选项错误。 ▷（ ）3 答案：B 📖 解析：架子太高够不到，用can't。can't后接动词原形reach。 ★（ ）1 答案：C 📖 解析：情态动词（can/must/should）没有人称变化，即no -s/-es forms。 ★（ ）2 答案：A 📖 解析：询问能力用Can you jump high? = 你能跳得高吗？ ★（ ）3 答案：A 📖 解析：can后不接to，直接加动词原形。正确：She can dance. 考点5 参考答案与解析 ◇（ ）1 答案：A 📖 解析：频度副词放在实义动词brush之前。always brushes = 总是刷牙。 ◇（ ）2 答案：A 📖 解析：频度副词放在be动词is之后。is never late = 从不迟到。 ◇（ ）3 答案：A 📖 解析：usually放在实义动词exercise之前。usually exercise = 通常锻炼。 ▷（ ）1 答案：B 📖 解析：频度副词在be动词之后：is always happy。A错在always在is前。 ▷（ ）2 答案：A 📖 解析：often放在实义动词goes之前。often goes = 经常坐公交去学校。 ▷（ ）3 答案：A 📖 解析：频度副词放在实义动词play之前：usually play。C中are和play冲突。 ★（ ）1 答案：A 📖 解析：频率从高到低：always(100%) > usually(80%) > often(60%) > sometimes(40%) > never(0%)。 ★（ ）2 答案：A 📖 解析：always放在实义动词do之前：always do morning exercises。 ★（ ）3 答案：B 📖 解析：频度副词在be动词之后：is never late。原句正确，无需修改。 考点6 参考答案与解析 ◇（ ）1 答案：B 📖 解析：主语She是三单，wash以sh结尾加es→washes。 ◇（ ）2 答案：B 📖 解析：主语Jam是三单，brush以sh结尾加es→brushes。 ◇（ ）3 答案：B 📖 解析：主语Zhang Hao是三单，cross以s结尾加es→crosses。 ▷（ ）1 答案：A 📖 解析：He是三单，wash应变为washes。A错在没加es。 ▷（ ）2 答案：A 📖 解析：主语Chen Wei是三单，eat加s→eats。 ▷（ ）3 答案：B 📖 解析：主语Bella是三单，do变does。注意助动词也需三单变化。 ★（ ）1 答案：C 📖 解析：以-sh/-ch/-ss/-x结尾的动词，三单加-es：wash→washes, watch→watches。 ★（ ）2 答案：B 📖 解析：go以o结尾，三单加es→goes。这是不规则变化需记忆。 ★（ ）3 答案：B 📖 解析：They变She，动词需加es：watches。watch以ch结尾加es。 考点7 参考答案与解析 ◇（ ）1 答案：A 📖 解析：I与am搭配：I am going to visit = 我打算去看望祖父母。 ◇（ ）2 答案：B 📖 解析：Chen Wei是三单，与is搭配：is going to play。 ◇（ ）3 答案：C 📖 解析：They是复数，与are搭配：are going to clean。 ▷（ ）1 答案：C 📖 解析：They是复数，应搭配are。C错在They is。 ▷（ ）2 答案：B 📖 解析：Olivia是三单，用is。be going to be = 打算成为。 ▷（ ）3 答案：C 📖 解析：Jam and I = 复数主语，用are。going to + 地点 = 打算去某地。 ★（ ）1 答案：A 📖 解析：be going to结构：主语+am/is/are+going to+动词原形。 ★（ ）2 答案：C 📖 解析：We是复数，搭配are。are going to swim = 打算去游泳。 ★（ ）3 答案：B 📖 解析：改为be going to结构：She is going to school. 用is因为She是三单。 考点8 参考答案与解析 ◇（ ）1 答案：C 📖 解析：must后接动词原形be。be careful = 小心/注意。 ◇（ ）2 答案：C 📖 解析：should后接动词原形be。be safe = 保持安全。 ◇（ ）3 答案：C 📖 解析：want to + 动词原形be。be healthy = 保持健康。 ▷（ ）1 答案：C 📖 解析：It's important to be... = 做某事很重要。to be careful = 小心。 ▷（ ）2 答案：C 📖 解析：祈使句用动词原形Be开头，不用Are。C选项错误。 ▷（ ）3 答案：C 📖 解析：learn to be safe = 学会在路上保持安全。learn to + 动词原形。 ★（ ）1 答案：C 📖 解析：be + 形容词构成系表结构（linking verb + adjective）。be是系动词。 ★（ ）2 答案：C 📖 解析：祈使句用动词原形Be开头：Be healthy = 保持健康！ ★（ ）3 答案：C 📖 解析：陈述句改祈使句用动词原形Be：Be careful! = 小心！ 考点9 参考答案与解析 ◇（ ）1 答案：B 📖 解析：Don't make noise = 不要在图书馆制造噪音。Don't后接动词原形。 ◇（ ）2 答案：B 📖 解析：Don't touch = 不要碰。否定祈使句用Don't + 动词原形。 ◇（ ）3 答案：B 📖 解析：Don't waste = 不要浪费水。Don't后接动词原形waste。 ▷（ ）1 答案：A 📖 解析：Don't be late = 不要迟到。Don't后接be动词原形。 ▷（ ）2 答案：B 📖 解析：Don't后接动词原形，不接to。B选项'Don't to run'错误。 ▷（ ）3 答案：A 📖 解析：Don't be afraid = 不要害怕。Don't后接be动词原形。 ★（ ）1 答案：C 📖 解析：Don't = Do not 的缩写。用于否定祈使句。 ★（ ）2 答案：B 📖 解析：禁止翻越围栏：Don't climb the fence! Don't后接动词原形。 ★（ ）3 答案：B 📖 解析：must not = Don't，语气从'禁止'转为祈使句。Don't touch it! 考点10 参考答案与解析 ◇（ ）1 答案：A 📖 解析：发生火灾应该拨打119，用should表示'应该'。 ◇（ ）2 答案：B 📖 解析：红灯时禁止过马路，用mustn't表示'绝对不可以'。 ◇（ ）3 答案：B 📖 解析：主语Olivia三单，exercise加s→exercises。保持健康需要每天锻炼。 ▷（ ）1 答案：C 📖 解析：A（应该小心）和B（禁止在路上跑）都是正确的道路安全建议。 ▷（ ）2 答案：B 📖 解析：He是三单，have变has。has a good habit = 有一个好习惯。 ▷（ ）3 答案：A 📖 解析：正确语序：You must always be careful. 频度副词always在实义动词be之前。 ★（ ）1 答案：C 📖 解析：本单元主题就是Stay Safe and Healthy（保持安全与健康），涵盖了安全规则和健康习惯。 ★（ ）2 答案：C 📖 解析：校训用祈使句：Be safe, be healthy! = 保持安全，保持健康！ ★（ ）3 答案：C 📖 解析：C选项最完整：红灯停、过马路前看两边，涵盖了多项安全规则。 — 北京版六年级上册 Unit 2 专项训练 — 页码： 学科网（北京）股份有限公司 $