Unit 5 Play by the rules动词不定式作目的状语（核心语法精练）英语新教材外研版八年级上册

**基本信息** 聚焦动词不定式作目的状语，通过基础到综合的阶梯式训练，系统构建语法应用能力，渗透公共规则意识，提升语言运用与思维品质。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |考点夯基|35题（填空/选择/完成句子/句型转换）|聚焦基础形式（to do）及变式（so as to/in order to），结合公共安全场景|从单句应用到句式转换，构建"概念理解-形式掌握-语境运用"逻辑链| |综合提升|30题（语法选择/填空/短文改错）|语篇层面综合考查，融入社区服务、网络安全等主题|从句子到语篇，实现语法知识向语言能力迁移，培养文化意识与学习策略|

Unit 5 Play by the rules? 核心语法精练 （动词不定式作目的状语） 参考答案 知识回顾 考点夯基 综合提升 动词不定式作目的状语 语法思维导图 一、用所给单词的适当形式填空。 1. to stay 2. to catch 3. to improve 4. to catch 5. to make 6. to stop 7. to say 8. to keep 9. to protect 10. to block 二、单项选择。 1.B 2.B 3.A 4.A 5.B 6.A 7.B 8.B 9.A 10.C 三、完成句子。 1. so as to / in order to / to 2. In order to / To 3. to protect / in order to protect / so as to protect 4. to say / in order to say / so as to say 5. In order not to 6. to keep / in order to keep / so as to keep 7. to learn / in order to learn / so as to learn 8. to remind / in order to remind / so as to remind 9. to avoid / in order to avoid / so as to avoid 10. In order to deal with / To deal with 四、句型转换。 1. in order to 2. so as to 3. in order not to 4. To spread 5. so as to 一、语法选择。 1.B 2.B 3.A 4.A 5.A 6.B 7.A 8.B 9.B 10.B 2、 语法填空：用所给词的适当形式完成短文。 1. to complete 2. to help 3. to remind 4. to show 5. in order not to / so as not to 6. to keep 7. to stop 8. to explain 9. to guide 10. to create 三、短文改错。要求：文中共有 10 处语言错误，每句最多 2 处，每处错误仅涉及一个单词的增加、删除或修改。 增加：在缺词处加∧，并在其下方写出该词； 删除：把多余的词用斜线 \\ 划掉； 修改：在错词下画横线，并在横线下方写出正确单词。 1. week make → week to make 2. ask students keep → ask students to keep 3. not make → not to make 4. so as keep → so as to keep 5. signs remind → signs to remind 6. notebooks write → notebooks to write 7. password let → password to let 8. so as develop → so as to develop 9. class not leave → class so as not to / in order not to leave 10. order understand → order to understand 1 / 12 学科网（北京）股份有限公司 $ Unit 5 Play by the rules? 核心语法精练 （动词不定式作目的状语） 答案解析 知识回顾 考点夯基 综合提升 动词不定式作目的状语 语法思维导图 一、用所给单词的适当形式填空。 1. People wear seat belts ________ (stay) safe on the road. 2. Sally arrived early ________ (catch) the earliest train. 3. I listened carefully ________ (improve) my maths grades. 4. He took a deep breath ________ (catch) others’ attention. 5. We should keep quiet ________ (make) the library a good place to read books . 6. Many people avoid posting personal information ________ (stop) online risks. 7. The boy left a note ________ (say) sorry to Ms Yu. 8. Parents should look after their kids well ________ (keep) public order. 9. We must follow online rules ________ (protect) our own safety. 10. She covered her ears ________ (block) the loud noise on the bus. 【答案解析】 1. to stay：不定式to do作目的状语，系安全带的目的是保证安全。 2. to catch：to do表目的，早到车站是为了赶上早班列车。 3. to improve：认真听课的目的是提高数学成绩，用to do表目的。 4. to catch：深呼吸、清嗓子是为吸引他人注意，不定式表动作目的。 5. to make: 我们保持安静的目的是让图书馆变成一个阅读的好地方，to do表动作目的。 6. to stop：不在网上泄露隐私，目的是规避网络风险，to do作目的状语。 7. to say：男孩留纸条是为了道歉，不定式表写纸条的目的。 8. to keep：家长看管好孩子，目的是维护公共秩序。 9. to protect：遵守网络规则，目的是保护自身信息安全。 10. to block：捂住耳朵是为隔绝噪音，to do表动作目的。 二、单项选择。 ( )1. Linda gets up early _______ finish her homework before school. A. so as B. so as to C. in order D. in order that ( )2. _______ learn more online safety rules, I read the guide carefully. A. So as to B. To C. So that D. For ( )3. We should keep our password secret _______ strangers won’t cheat us. A. in order that B. in order to C. so as to D. to ( )4. The man took out smelly food _______ have a picnic on the subway. A. to B. for C. so D. that ( )5. —Why do you turn off your phone in the library? —_______ make any noise. A. Not to B. In order not to C. So as not to D. To not ( )6. He stood up and cleared his throat _______ remind noisy passengers of rules. A. so as to B. so as C. in order D. so that ( )7. _______ avoid cyberbullying, never reply to bad online messages. A. So as to B. In order to C. So as D. In order ( )8. Many citizens follow public rules _______ build a nice environment. A. build B. to build C. building D. built ( )9. Don’t meet online strangers _______ keep yourself safe in real life. A. in order to B. so as C. to not D. not to ( )10. She writes stories online _______ spread warmth and happiness. A. spread B. spreading C. to spread D. spreads 【答案解析】 1. B：so as to + 动词原形，放句尾表目的；so as/in order后缺to，in order that后接从句，排除ACD。 2. B：To do放句首表目的；so as to不能置于句首，so that后接从句，for后接名词，排除ACD。 3. A：in order that 后接完整句子表目的；B/C/D 后面只能接动词原形，不能接从句。 句意：我们应当保管好密码，这样陌生人就无法欺骗我们。 4. A：to + 动词原形表拿出食物的目的；for介词后接名词，so/that引导从句，排除BCD。 5. B：答句放句首表否定目的，只能用In order not to；So as not to不能放句首，Not to/To not格式错误。 6. A：so as to + 动词原形放句尾表目的；so as/in order缺少to，so that接从句。 7. B：句首表目的只能用In order to；So as to禁止放在句首，CD缺少to。 8. B：to build不定式作目的状语，遵守规则的目的是营造良好环境；其余形式不能表目的。 9. A：in order to do表肯定目的；so as缺to，to not/not to为错误否定结构。 10. C：to spread作目的状语，线上写故事是为传递温暖；其余动词形式无法表动作目的。 三、完成句子。 1. 我捂住鼻子，为了减少食物难闻的气味。 I covered my nose ________________ reduce the terrible smell of food. 2. 为了赶上早班车，他昨天六点就出门了。 ________________ catch the early bus, he left home at six yesterday. 3. 我们遵守网络规则，保护个人隐私。 We follow online rules ________________ our personal information. 4. 这位男孩写下纸条，向主人道歉。 The boy wrote a note ________________ sorry to the owner of the flowerpot. 5. 为了不打扰火车上其他乘客，请不要大声播放音乐。 ________________ disturb other passengers on the train, don’t play loud music. 6. 父母照看好孩子，维持公共秩序。 Parents look after their kids well ________________ good public order. 7. 我认真阅读安全指南，学习更多自保方法。 I read the safety guide carefully ________________ more ways to stay safe. 8. 他深呼吸、清清嗓子，提醒大家遵守规定。 He took a deep breath and cleared his throat ________________ people to play by the rules. 9. 不要在网上泄露手机号，避免网络危险。 Don’t share your phone number online ________________ online risks. 10. 为了处理网络霸凌，我们可以向成年人求助。 ________________ cyberbullying, we can turn to trusted adults for help. 【答案解析】 1. so as to / in order to / to：句尾表肯定目的，三种结构均可互换。 2. In order to / To：目的短语置于句首，只能用这两种，so as to不可放句首。 3. to protect / in order to protect / so as to protect：to后加动词原形protect，三种结构句尾通用。 4. to say / in order to say / so as to say：写纸条的目的是道歉，不定式表目的，句尾三结构通用。 5. In order not to ：放于句首表否定目的，so as not to不能放在句首。 6. to keep / in order to keep / so as to keep：看管孩子的目的是维持秩序，句尾三结构均可。 7. to learn / in order to learn / so as to learn：读指南是为学习自保方法，不定式表目的。 8. to remind / in order to remind / so as to remind：清嗓子的目的是提醒他人遵守规则。 9. to avoid / in order to avoid / so as to avoid：不泄露信息是为规避网络风险。 10. In order to deal with / To deal with：句首表目的，deal with为固定搭配“应对”。 四、句型转换。 1. He went to the quiet carriage to read books.（用in order to 改写） He went to the quiet carriage ________ ________ ________ read books. 2. To stay safe online, we never meet net friends alone.（用so as to改写） We never meet net friends alone ________ ________ ________stay safe online. 3. She covered her ears in order to block loud noise.（改为否定句） She covered her ears ________ ________ ________ ________ hear loud noise. 4.She writes warm short stories in order to spread kindness online.（用to 改写） ________ ________ kindness online, she writes warm short stories. 5. I picked up broken pieces to clean up the mess.（用so as to改写） I picked up broken pieces ________ ________ ________clean up the mess. 【答案解析】 1. in order to：句尾位置中to do和in order to可以互换，in order to后接动词原形，刚好匹配三个空格。 2. so as to：so as to只能放在句子后半部分表目的，不能用于句首，符合本题改写要求，占三个空。 3. in order not to：表否定目的标准结构为in order not to，not必须置于to前面，无to not do这种错误形式，正好填满四个空格。 4. To spread：to do结构放在句首可以作目的状语，原动词是spread，因此填写To spread。 5. so as to：句尾表目的时to do与so as to同义替换，so as to为三个单词，适配题干三处填空。 一、语法选择。 Now more people take undergrounds and high-speed trains for trips. We need to learn public rules 1. ________ comfortable space for everyone. Many passengers take small bags 2. ________ their snacks, but they choose mild food 3. ________ bad smell. Some kids like kicking seats 4. ________ fun, so parents should watch them closely 5. ________ avoid trouble. I always bring a book with me 6. ________ time quietly. I turn down my phone volume 7. ________ disturb anyone around me. When I see someone break rules, I speak gently 8. ________ them of the signs on the wall. We all learn online safety rules 9. ________ away from cyberbullying. Rules exist 10. ________ our daily life better. ( )1. A. create B. to create C. creating D. created ( )2. A. carry B. to carry C. carrying D. carried ( )3. A. to stop B. stop C. stopping D. stopped ( )4. A. to have B. have C. having D. had ( )5. A. so as to B. to not C. in order not to D. so as not to ( )6. A. kill B. to kill C. killing D. killed ( )7. A. in order not to B. not to C. to not D. so as to not ( )8. A. remind B. to remind C. reminding D. reminded ( )9. A. stay B. to stay C. staying D. stayed ( )10. A. make B. to make C. making D. made 【答案解析】 1. B：to create不定式作目的状语，学习公共规则是为打造舒适环境。 2. B：to carry，带小包的目的是装零食，to do表动作目的。 3. A：to stop，选择清淡食物是为杜绝异味，不定式表目的。 4. A：to have，小孩踢座椅是为玩乐，to do表行为目的。 5. A：so as to，家长看管孩子是为了避免麻烦，to do 表目的。 6. B：to kill，随身带书是为安静消磨时间，不定式表目的。 7. A：in order not to，调低音量是为不打扰他人，否定目的规范格式。 8. B：to remind，温和说话是为提醒他人遵守标识，to do作目的状语。 9. B：to stay，学习网络规则是为远离网络霸凌。 10. B：to make，规则存在的目的是让生活更美好。 2、 语法填空：用所给词的适当形式完成短文。 Last month, our teacher asked us to finish a social practice task. I chose to join a neighbourhood volunteer group 1. ________ (complete) this task well. Every Saturday morning, I leave my home and go to nearby public places 2. ________ (help) citizens follow different public rules. I often go to the central city park alone. I take colourful printed signs 3. ________ (remind) visitors of park rules. I hold the boards up high and clearly 4. ________ (show) everyone what they can or cannot do. I always talk in a soft, low voice 5. ________ (not make) visitors feel upset. Sometimes I work at the community’s online service corner in the afternoon. I teach elderly neighbours simple Internet skills 6. ________ (keep) them away from online cheats. I tell them never to send their ID numbers online 7. ________ (stop) strangers stealing their personal data. I hand out small paper guide cards 8. ________ (explain) how to set long, safe passwords. When I meet teenagers who break online chat rules, I chat with them patiently 9. ________ (guide) them to behave properly online. I stick to every volunteer work standard 10. ________ (create) a safer online and offline space for all people around us. 【答案解析】 1. to complete：我加入志愿小组是为了出色完成学校布置的社会实践任务，不定式表动作目的。 2. to help：每周六前往公共场所，目的是协助市民遵守各类公共规则。 3. to remind：携带彩色告示牌，用来提醒游客公园规章制度，to do作目的状语。 4. to show：把告示牌举高，清晰地展示游园允许和禁止的行为，体现行为目标。 5. in order not to / so as not to：说话轻柔是为了不让游客产生反感，否定目的固定结构，not必须放在to前面。 6. to keep：教老年人基础网络操作，目的是让他们远离网络诈骗。 7. to stop：劝告老人不要线上泄露证件号，防止个人信息被盗取。 8. to explain：分发纸质指南卡片，讲解高强度安全密码的设置方法。 9. to guide：耐心和违规青少年交流，引导他们规范文明上网。 10. to create：严格遵守志愿者工作准则，为所有人打造更安全的线上线下环境。 三、短文改错。要求：文中共有 10 处语言错误，每句最多 2 处，每处错误仅涉及一个单词的增加、删除或修改。 增加：在缺词处加∧，并在其下方写出该词； 删除：把多余的词用斜线 \\ 划掉； 修改：在错词下画横线，并在横线下方写出正确单词。 Our group made new class rules last week make our classroom tidy. We ask students keep quiet in order not make noise. Students can’t eat smelly snacks so as keep the air fresh. We put up signs remind everyone of the rules. Students take notebooks write down key points to improve grades. Don’t share your class password let others use your desk computer. We work in groups to finish tasks so as develop teamwork. We clean up rubbish after class not leave a mess. We listen carefully in order understand the teachers better. 【参考答案】 1. week make → week to make 2. ask students keep → ask students to keep 3. not make → not to make 4. so as keep → so as to keep 5. signs remind → signs to remind 6. notebooks write → notebooks to write 7. password let → password to let 8. so as develop → so as to develop 9. class not leave → class so as not to / in order not to leave 10. order understand → order to understand 【答案解析】 1. to make：制作班规的目的是整洁教室，缺少不定式to表目的。 2. to keep：固定搭配ask sb. to do sth.不定式作宾补，to不能省略。 3. not to make：in order后接否定目的，必须加to，in order not to do。 4. so as to keep：so as后必须搭配to加动词原形，表目的。 5. to remind：张贴标识是为提醒学生，不定式表动作目的。 6. to write：带笔记本是为记录知识点，补充to作目的状语。 7. to let：分享密码会允许他人使用电脑，不定式表结果/目的，缺to。 8. so as to develop：so as结构后必须加to，再接动词原形。 9. so as not to / in order not to leave：课后打扫是为不留下垃圾，补充完整否定目的结构。 10. order to understand：in order是固定搭配，后必须加to引导目的。 1 / 12 学科网（北京）股份有限公司 $ Unit 5 Play by the rules? 核心语法精练 （动词不定式作目的状语） 知识回顾 考点夯基 综合提升 动词不定式作目的状语 语法思维导图 一、用所给单词的适当形式填空。 1. People wear seat belts ________ (stay) safe on the road. 2. Sally arrived early ________ (catch) the earliest train. 3. I listened carefully ________ (improve) my maths grades. 4. He took a deep breath ________ (catch) others’ attention. 5. We should keep quiet ________ (make) the library a good place to read books . 6. Many people avoid posting personal information ________ (stop) online risks. 7. The boy left a note ________ (say) sorry to Ms Yu. 8. Parents should look after their kids well ________ (keep) public order. 9. We Must follow online rules ________ (protect) our own safety. 10. She covered her ears ________ (block) the loud noise on the bus. 二、单项选择。 ( )1. Linda gets up early _______ finish her homework before school. A. so as B. so as to C. in order D. in order that ( )2. _______ learn more online safety rules, I read the guide carefully. A. So as to B. To C. So that D. For ( )3. We should keep our password secret _______ strangers won’t cheat us. A. in order that B. in order to C. so as to D. to ( )4. The man took out smelly food _______ have a picnic on the subway. A. to B. for C. so D. that ( )5. —Why do you turn off your phone in the library? —_______ make any noise. A. Not to B. In order not to C. So as not to D. To not ( )6. He stood up and cleared his throat _______ remind noisy passengers of rules. A. so as to B. so as C. in order D. so that ( )7. _______ avoid cyberbullying, never reply to bad online messages. A. So as to B. In order to C. So as D. In order ( )8. Many citizens follow public rules _______ build a nice environment. A. build B. to build C. building D. built ( )9. Don’t meet online strangers _______ keep yourself safe in real life. A. in order to B. so as C. to not D. not to ( )10. She writes stories online _______ spread warmth and happiness. A. spread B. spreading C. to spread D. spreads 三、完成句子。 1. 我捂住鼻子，为了减少食物难闻的气味。 I covered my nose ________________ reduce the terrible smell of food. 2. 为了赶上早班车，他昨天六点就出门了。 ________________ catch the early bus, he left home at six yesterday. 3. 我们遵守网络规则，保护个人隐私。 We follow online rules ________________ our personal information. 4. 这位男孩写下纸条，向主人道歉。 The boy wrote a note ________________ sorry to the owner of the flowerpot. 5. 为了不打扰火车上其他乘客，请不要大声播放音乐。 ________________ disturb other passengers on the train, don’t play loud music. 6. 父母照看好孩子，维持公共秩序。 Parents look after their kids well ________________ good public order. 7. 我认真阅读安全指南，学习更多自保方法。 I read the safety guide carefully ________________ more ways to stay safe. 8. 他深呼吸、清清嗓子，提醒大家遵守规定。 He took a deep breath and cleared his throat ________________ people to play by the rules. 9. 不要在网上泄露手机号，避免网络危险。 Don’t share your phone number online ________________ online risks. 10. 为了应对网络霸凌，我们可以向成年人求助。 ________________ cyberbullying, we can turn to trusted adults for help. 四、句型转换。 1. He went to the quiet carriage to read books.（用in order to 改写） He went to the quiet carriage ________ ________ ________ read books. 2. To stay safe online, we never meet net friends alone.（用so as to改写） We never meet net friends alone ________ ________ ________stay safe online. 3. She covered her ears in order to block loud noise.（改为否定句） She covered her ears ________ ________ ________ ________ hear loud noise. 4.She writes warm short stories in order to spread kindness online.（用to 改写） ________ ________ kindness online, she writes warm short stories. 5. I picked up broken pieces to clean up the mess.（用so as to改写） I picked up broken pieces ________ ________ ________clean up the mess. 一、语法选择。 Now more people take undergrounds and high-speed trains for trips. We need to learn public rules 1. ________ comfortable space for everyone. Many passengers take small bags 2. ________ their snacks, but they choose mild food 3. ________ bad smell. Some kids like kicking seats 4. ________ fun, so parents should watch them closely 5. ________ avoid trouble. I always bring a book with me 6. ________ time quietly. I turn down my phone volume 7. ________ disturb anyone around me. When I see someone break rules, I speak gently 8. ________ them of the signs on the wall. We all learn online safety rules 9. ________ away from cyberbullying. Rules exist 10. ________ our daily life better. ( )1. A. create B. to create C. creating D. created ( )2. A. carry B. to carry C. carrying D. carried ( )3. A. to stop B. stop C. stopping D. stopped ( )4. A. to have B. have C. having D. had ( )5. A. so as to B. to not C. in order not to D. so as not to ( )6. A. kill B. to kill C. killing D. killed ( )7. A. in order not to B. not to C. to not D. so as to not ( )8. A. remind B. to remind C. reminding D. reminded ( )9. A. stay B. to stay C. staying D. stayed ( )10. A. make B. to make C. making D. made 2、 语法填空：用所给词的适当形式完成短文。 Last month, our teacher asked us to finish a social practice task. I chose to join a neighbourhood volunteer group 1. ________ (complete) this task well. Every Saturday morning, I leave my home and go to nearby public places 2. ________ (help) citizens follow different public rules. I often go to the central city park alone. I take colourful printed signs 3. ________ (remind) visitors of park rules. I hold the boards up high and clearly 4. ________ (show) everyone what they can or cannot do. I always talk in a soft, low voice 5. ________ (not make) visitors feel upset. Sometimes I work at the community’s online service corner in the afternoon. I teach elderly neighbours simple Internet skills 6. ________ (keep) them away from online cheats. I tell them never to send their ID numbers online 7. ________ (stop) strangers stealing their personal data. I hand out small paper guide cards 8. ________ (explain) how to set long, safe passwords. When I meet teenagers who break online chat rules, I chat with them patiently 9. ________ (guide) them to behave properly online. I stick to every volunteer work standard 10. ________ (create) a safer online and offline space for all people around us. 三、短文改错。要求：文中共有 10 处语言错误，每句最多 2 处，每处错误仅涉及一个单词的增加、删除或修改。 增加：在缺词处加∧，并在其下方写出该词； 删除：把多余的词用斜线 \\ 划掉； 修改：在错词下画横线，并在横线下方写出正确单词。 Our group made new class rules last week make our classroom tidy. We ask students keep quiet in order not make noise. Students can’t eat smelly snacks so as keep air fresh. We put up signs remind everyone of the rules. Students take notebooks write down key points to improve grades. Don’t share your class password let others use your desk computer. We work in groups to finish tasks so as develop teamwork. We clean up rubbish after class not leave mess. We listen carefully in order understand teachers better. 1 / 12 学科网（北京）股份有限公司 $