Unit 4 Smart home（核心语法精练）英语新教材沪教版五四学制七年级上册

Unit 4 Smart home核心语法精练 目录 二、考点夯基 3 一、用所给单词的正确形式填空 3 二、单项选择 4 三、完成句子 7 四、句型转换 8 一、语法选择 9 二、短文填空 11 语法项目 语法要点说明 典型例句 错误陷阱 There be 句型 there is /there are；掌握否定、一般疑问；遵循就近原则 There is a new sensor in the room. ❌ There are a sensor and two lamps.解析：be 动词和就近名词保持一致，a sensor 为单数；正确：There is a sensor and two lamps. 祈使句（肯定、否定） 肯定句：动词原形开头；否定句：Don’t + 动词原形 Turn on the light. / Don’t touch the device. ❌ Don’t to touch the device.解析：don’t 之后直接使用动词原形，去掉 to；正确：Don’t touch the device. can 表能力、许可 can 后接动词原形；can be done 仅阅读感知，不做书面考题 You can control the TV by phone. ❌ You can to control the TV.解析：情态动词 can 后接动词原形；正确：You can control the TV. 介词 with 表工具 / 方式 with + 名词，用来表示 “使用某种工具” You can operate it with your mobile phone. ❌ You can operate it use your mobile phone.解析：句子已有谓语 operate，不能再用动词 use；改用介词 with。 考查语法：There be 句型；祈使句；can 表能力许可；介词 with 表工具方式 一、用所给单词的适当形式填空。 1. There ________ (be) a smart sensor in the room. 2. There ________ (be) two smart devices and a lamp on the table. 3. ________ (turn) on the smart light, please.（祈使句） 4. ________ (not touch) the hot smart device.（祈使句否定） 5. You can ________ (control) the TV by mobile phone. 6. There ________ (be) not any new devices in this old house. 7. You can operate the machine ________ (use /with) your phone. 8. There ________ (be) a pen and three books on the desk. 9. You ________ (can not) open the window by this smart system. 10. ________ (connect) the device to Wi‑Fi.（祈使句） 二、单项选择 1. There ______ a sensor and two speakers in the room. A. is B. are C. be D. am 2. ______ open the smart window. A. Not B. Don’t C. No D. Do not to 3. You ______ control the light ______ your mobile phone. A. can; with B. can; use C. to can; with D. can to; use 4. ______ there any smart devices in your home? A. Is B. Are C. Be D. Am 5. Please ______ the smart TV. A. turn on B. to turn on C. turning on D. turned on 三、完成句子 1. 房间里有一个新的传感器。 ________ ________ a new sensor in the room. 2. 请打开智能灯。 ________ ________ the smart light, please. 3. 不要触碰这个设备。 ________ ________ the device. 4. 你可以用手机操控它。 You can operate it ________ ________ ________. 5. 桌上有两台智能设备。 ________ ________ two smart devices on the table. 6. 请把设备连接到无线网络。 ________ the device ________ the Wi‑Fi, please. 7. 你可以远程控制家电。 You ________ control home appliances far away. 8. 房间里没有智能传感器。 ________ ________ not a smart sensor in the room. 9. 不要关闭这个智能系统。 ________ ________ the smart system. 10. 你可以用这个工具操作机器。 You can operate the machine ________ this tool. 四、句型转换 1. There is a smart sensor in my room.（改为一般疑问句） ________ ________ a smart sensor in your room? 2. Turn on the light.（改为否定祈使句） ________ ________ on the light. 3. You can control the device with your phone.（改为否定句） You ________ control the device with your phone. 4. There are two smart devices on the desk.（对划线部分 two smart devices 提问） ________ ________ on the desk? 5. You can connect the device to Wi‑Fi.（改为一般疑问句） ________ ________ connect the device to Wi‑Fi? 一、语法选择 根据短文内容，从A、B、C三个选项中选出一个语法正确的答案。 (A) With the rapid development of science and technology, smart homes have become 1 popular in recent years. A smart home uses various devices 2 can be connected to the Internet to improve people’s living standards. For example, you can control the lights, air conditioner and even the oven 3 your smartphone when you are not at home. Last month, my family installed 4 advanced smart home system. At first, my parents were not familiar with how to use it. However, after a few days of practice, they could operate it 5 . Every morning, the smart speaker wakes me up 6 plays my favorite music. Before I leave for school, I can check if the windows are closed through the app. 7 convenient the smart home is! If I forget 8 off the TV, the system 9 send me a reminder. Smart homes 10 widely around the world now. They not only bring convenience but also make our lives safer. However, we should pay attention to protecting our personal information when using these technologies. 1．A．more B．most C．much 2．A．who B．which C．what 3．A．with B．by C．through 4．A．a B．an C．the 5．A．careful B．carefully C．careless 6．A．and B．but C．or 7．A．How B．What C．What a 8．A．turn B．turning C．to turn 9．A．will B．would C．has 10．A．use B．are used C．used to (B) Smart Homes My grandma used to forget 11 lights, but now her smart home system handles it automatically. Voice commands like “Turn off TV” make her life 12 . However, Dad insists she 13 basic tech safety rules. “Convenience shouldn’t replace caution.” he says. This balance between technology and tradition 14 key to modern living. Last month, the system detected a water leak and 15 alerted the repair service. Grandma was amazed: “It’s like having a guardian angel!” But when she tried to update the software 16 , she accidentally locked herself out. Dad taught her to 17 step-by-step tutorials online. Now she even helps neighbors 18 their smart devices. “Learning never stops.” she smiles. Though challenges exist, technology truly 19 lives when used 20 . 11．A．turn off B．turning off C．to turn off D．turned off 12．A．easy B．easier C．easiest D．easily 13．A．learns B．learned C．must learn D．learning 14．A．remain B．remains C．remained D．will remain 15．A．quietly B．immediately C．slowly D．hardly 16．A．herself B．himself C．itself D．themselves 17．A．ignore B．follow C．create D．delete 18．A．repair B．repairing C．repaired D．repairs 19．A．improves B．improved C．has improved D．will improve 20．A．wisely B．carelessly C．quickly D．proudly 二、语法填空 阅读下面短文,根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的正确形式。 Nowadays, smart technology is changing people’s daily lives greatly, especially in many modern 1 (flat) around us. It makes our living experience much easier and more comfortable than before. In the past, 2 (we) living conditions were quite different. The old streets were narrow, and traditional houses needed lots of hard work to keep clean. We had to 3 (careful) sweep the floor again and again to clear all the dirt. Also, we needed to check doors, lights and air conditioners one by one before 4 (go) out, which always cost us plenty of time. However, smart homes are totally 5 (lead) us to a new way of life today. They are so convenient that we can control almost everything with our phones 6 simple voices. When we are still on the way home, we can turn 7 lights and adjust (调节) the temperature in advance. Smart cleaners can clear dirt automatically, so we no longer need to spend hours doing 8 (tired) housework. Even if we leave our flats in a hurry, we can check all smart devices (设备) far away. In fact, smart homes not only bring comfort, 9 also show the fast development of science. They have 10 (help) us live a high-quality life and allowed us to enjoy every warm moment at home. We believe technology will keep improving and bring us a better future. 1 / 12 学科网（北京）股份有限公司 $ Unit 4 Smart home核心语法精练 目录 二、考点夯基 3 一、用所给单词的正确形式填空 3 二、单项选择 4 三、完成句子 7 四、句型转换 8 一、语法选择 9 二、短文填空 11 语法项目 语法要点说明 典型例句 错误陷阱 There be 句型 there is /there are；掌握否定、一般疑问；遵循就近原则 There is a new sensor in the room. ❌ There are a sensor and two lamps.解析：be 动词和就近名词保持一致，a sensor 为单数；正确：There is a sensor and two lamps. 祈使句（肯定、否定） 肯定句：动词原形开头；否定句：Don’t + 动词原形 Turn on the light. / Don’t touch the device. ❌ Don’t to touch the device.解析：don’t 之后直接使用动词原形，去掉 to；正确：Don’t touch the device. can 表能力、许可 can 后接动词原形；can be done 仅阅读感知，不做书面考题 You can control the TV by phone. ❌ You can to control the TV.解析：情态动词 can 后接动词原形；正确：You can control the TV. 介词 with 表工具 / 方式 with + 名词，用来表示 “使用某种工具” You can operate it with your mobile phone. ❌ You can operate it use your mobile phone.解析：句子已有谓语 operate，不能再用动词 use；改用介词 with。 考查语法：There be 句型；祈使句；can 表能力许可；介词 with 表工具方式 一、用所给单词的适当形式填空。 1. There ________ (be) a smart sensor in the room. 【答案】is 【解析】there be 就近原则，a sensor 单数，be 动词 is。 2. There ________ (be) two smart devices and a lamp on the table. 【答案】are 【解析】就近名词 two smart devices 复数，be 动词 are。 3. ________ (turn) on the smart light, please.（祈使句） 【答案】Turn 【解析】肯定祈使句动词原形开头，句首大写 Turn。 4. ________ (not touch) the hot smart device.（祈使句否定） 【答案】Don’t touch 【解析】否定祈使句 Don’t + 动词原形，句首大写。 5. You can ________ (control) the TV by mobile phone. 【答案】control 【解析】情态动词 can 后接动词原形 control。 6. There ________ (be) not any new devices in this old house. 【答案】are 【解析】devices 复数，there be 用 are。 7. You can operate the machine ________ (use /with) your phone. 【答案】with 【解析】句已有谓语 operate；介词 with 表示凭借工具。 8. There ________ (be) a pen and three books on the desk. 【答案】is 【解析】就近原则 a pen 单数，be 动词 is。 9. You ________ (can not) open the window by this smart system. 【答案】can’t 【解析】can not 缩写 can’t，情态动词否定形式。 10. ________ (connect) the device to Wi‑Fi.（祈使句） 【答案】Connect 【解析】肯定祈使句动词原形开头，句首大写 Connect。 二、单项选择 1. There ______ a sensor and two speakers in the room. A. is B. are C. be D. am 【答案】A 【解析】there be 就近原则，a sensor 单数，选 is。 2. ______ open the smart window. A. Not B. Don’t C. No D. Do not to 【答案】B 【解析】否定祈使句 Don’t + 动词原形。 3. You ______ control the light ______ your mobile phone. A. can; with B. can; use C. to can; with D. can to; use 【答案】A 【解析】can 后接动词原形；with 介词表工具，不能用动词 use。 4. ______ there any smart devices in your home? A. Is B. Are C. Be D. Am 【答案】B 【解析】主语 devices 复数，there be 疑问句用 Are。 5. Please ______ the smart TV. A. turn on B. to turn on C. turning on D. turned on 【答案】A 【解析】祈使句 please 后接动词原形。 三、完成句子 1. 房间里有一个新的传感器。 ________ ________ a new sensor in the room. 【答案】There is 【解析】there be 句型，单数名词搭配 is。 2. 请打开智能灯。 ________ ________ the smart light, please. 【答案】Turn on 【解析】祈使句动词原形开头，turn on 打开，句首大写。 3. 不要触碰这个设备。 ________ ________ the device. 【答案】Don’t touch 【解析】否定祈使句 Don’t + 动词原形。 4. 你可以用手机操控它。 You can operate it ________ ________ ________. 【答案】with your phone 【解析】with 介词表示凭借工具。 5. 桌上有两台智能设备。 ________ ________ two smart devices on the table. 【答案】There are 【解析】devices 复数，there are。 6. 请把设备连接到无线网络。 ________ the device ________ the Wi‑Fi, please. 【答案】Connect; to 【解析】祈使句 connect…to… 把…… 连接到。 7. 你可以远程控制家电。 You ________ control home appliances far away. 【答案】can 【解析】can 情态动词表许可能力，后接动词原形 control。 8. 房间里没有智能传感器。 ________ ________ not a smart sensor in the room. 【答案】There is 【解析】a smart sensor 单数，there is。 9. 不要关闭这个智能系统。 ________ ________ the smart system. 【答案】Don’t close 【解析】否定祈使句 Don’t + 动词原形 close。 10. 你可以用这个工具操作机器。 You can operate the machine ________ this tool. 【答案】with 【解析】with 介词，凭借某种工具。 四、句型转换 1. There is a smart sensor in my room.（改为一般疑问句） ________ ________ a smart sensor in your room? 【答案】Is there 【解析】There be 变疑问句把 be 动词提前。 2. Turn on the light.（改为否定祈使句） ________ ________ on the light. 【答案】Don’t turn 【解析】肯定祈使句改为否定，Don’t + 动词原形 turn。 3. You can control the device with your phone.（改为否定句） You ________ control the device with your phone. 【答案】can’t 【解析】情态动词 can 直接加 not 缩写 can’t。 4. There are two smart devices on the desk.（对划线部分 two smart devices 提问） ________ ________ on the desk? 【答案】What are 【解析】there be 句型对事物提问 what are。 5. You can connect the device to Wi‑Fi.（改为一般疑问句） ________ ________ connect the device to Wi‑Fi? 【答案】Can you 【解析】情态动词 can 疑问句直接提前。 一、语法选择 根据短文内容，从A、B、C三个选项中选出一个语法正确的答案。 (A) With the rapid development of science and technology, smart homes have become 1 popular in recent years. A smart home uses various devices 2 can be connected to the Internet to improve people’s living standards. For example, you can control the lights, air conditioner and even the oven 3 your smartphone when you are not at home. Last month, my family installed 4 advanced smart home system. At first, my parents were not familiar with how to use it. However, after a few days of practice, they could operate it 5 . Every morning, the smart speaker wakes me up 6 plays my favorite music. Before I leave for school, I can check if the windows are closed through the app. 7 convenient the smart home is! If I forget 8 off the TV, the system 9 send me a reminder. Smart homes 10 widely around the world now. They not only bring convenience but also make our lives safer. However, we should pay attention to protecting our personal information when using these technologies. 1．A．more B．most C．much 2．A．who B．which C．what 3．A．with B．by C．through 4．A．a B．an C．the 5．A．careful B．carefully C．careless 6．A．and B．but C．or 7．A．How B．What C．What a 8．A．turn B．turning C．to turn 9．A．will B．would C．has 10．A．use B．are used C．used to 【答案】 1．A 2．B 3．C 4．B 5．B 6．A 7．A 8．C 9．A 10．B 【导语】本文是一篇说明文。文章主要介绍了智能家居，包括其定义、功能、家庭使用体验、在全球的普及情况以及使用时需要注意保护个人信息等。 【详解】1．句意：随着科学技术的飞速发展，智能家居近年来变得越来越流行。 more更多；most最多；much非常。根据“With the rapid development of science and technology”可知，此处表示智能家居近年来变得越来越流行，应用“比较级+and+比较级”的结构，表示“越来越……”，此处应用more。故选A。 2．句意：智能家居使用各种可以连接到互联网的设备来提高人们的生活水平。 who谁；which哪一个；what什么。根据“A smart home uses various devices...can be connected to the Internet to improve people’s living standards.”可知，此处为定语从句，先行词是“devices”，指物，关系词在从句中作主语，所以用which引导定语从句。故选B。 3．句意：例如，当你在外出时，你可以通过智能手机控制灯光、空调甚至烤箱。 with和……一起；by通过；through通过。根据“you can control the lights, air conditioner and even the oven...your smartphone when you are not at home.”可知，此处表示通过智能手机控制灯光、空调和烤箱，by通常表示方式、手段，后接具体的工具或手段，但更侧重于“通过某种方式或手段达到目的”，而through更侧重于“通过某种媒介或途径”，此处用through更合适。故选C。 4．句意：上个月，我家安装了一个先进的智能家居系统。 a一个，用于辅音音素开头的单词前；an一个，用于元音音素开头的单词前；the定冠词，表示特指。根据“my family installed…advanced smart home system”可知，此处表示安装了一个先进的智能家居系统，advanced为元音音素开头的单词，应用an。故选B。 5．句意：然而，经过几天的练习，他们可以仔细地操作它。 careful仔细的，形容词；carefully仔细地，副词；careless粗心的，形容词。根据“However, after a few days of practice, they could operate it...”可知，此处修饰动词“operate”，所以用副词carefully。故选B。 6．句意：每天早上，智能音箱叫醒我并播放我最喜欢的音乐。 and和；but但是；or或者。根据“Every morning, the smart speaker wakes me up...plays my favorite music.”可知，前后两个动作是顺承关系，所以用and连接。故选A。 7．句意：智能家居是多么方便啊！ How多么，引导感叹句，修饰形容词或副词；What多么，引导感叹句，修饰名词；What a多么，引导感叹句，修饰可数名词单数。根据“...convenient the smart home is!”可知，此处为感叹句，中心词是形容词“convenient”，所以用How引导。故选A。 8．句意：如果我忘记关电视，系统会给我发送提醒。 turn转动，动词原形；turning转动，现在分词或动名词；to turn转动，动词不定式。根据“If I forget...off the TV”可知，forget to do sth.“忘记去做某事”，forget doing sth.“忘记做过某事”，此处表示如果忘记去关电视，所以用动词不定式to turn。故选C。 9．句意：如果我忘记关电视，系统会给我发送提醒。 will将会，一般将来时；would将会，过去将来时；has有，现在完成时。根据“If I forget...off the TV, the system...send me a reminder.”可知，此处为if引导的条件状语从句，遵循“主将从现”原则，所以主句用一般将来时，即will+动词原形。故选A。 10．句意：智能家居现在在世界各地被广泛使用。 use使用，动词原形；are used被使用，一般现在时的被动语态；used to过去常常。根据“Smart homes...widely around the world now.”可知，主语“Smart homes”与动词“use”之间是被动关系，所以用被动语态，即be+动词的过去分词，结合时间状语“now”可知，此处用一般现在时的被动语态，主语是复数，所以be动词用are。故选B。 (B) Smart Homes My grandma used to forget 11 lights, but now her smart home system handles it automatically. Voice commands like “Turn off TV” make her life 12 . However, Dad insists she 13 basic tech safety rules. “Convenience shouldn’t replace caution.” he says. This balance between technology and tradition 14 key to modern living. Last month, the system detected a water leak and 15 alerted the repair service. Grandma was amazed: “It’s like having a guardian angel!” But when she tried to update the software 16 , she accidentally locked herself out. Dad taught her to 17 step-by-step tutorials online. Now she even helps neighbors 18 their smart devices. “Learning never stops.” she smiles. Though challenges exist, technology truly 19 lives when used 20 . 11．A．turn off B．turning off C．to turn off D．turned off 12．A．easy B．easier C．easiest D．easily 13．A．learns B．learned C．must learn D．learning 14．A．remain B．remains C．remained D．will remain 15．A．quietly B．immediately C．slowly D．hardly 16．A．herself B．himself C．itself D．themselves 17．A．ignore B．follow C．create D．delete 18．A．repair B．repairing C．repaired D．repairs 19．A．improves B．improved C．has improved D．will improve 20．A．wisely B．carelessly C．quickly D．proudly 【答案】 11．C 12．B 13．C 14．B 15．B 16．A 17．B 18．A 19．A 20．A 【导语】本文主要讲述作者奶奶使用智能家居系统的经历，体现合理利用科技改善生活。 【详解】11．句意：我的奶奶过去常常忘记关灯，但现在她的智能家居系统会自动处理这件事。 turn off关掉，动词原形；turning off关掉，动名词形式；to turn off去关掉，不定式；turned off关掉，过去式。“forget to do sth.”表示“忘记去做某事（未做 ）”；“forget doing sth.”表示“忘记做过某事（已做 ）”。这里是说奶奶过去常忘记去关灯，所以用“forget to turn off”。故选C。 12．句意：像“关掉电视”这样的语音指令让她的生活更轻松。 easy容易的，原级；easier更容易的，比较级；easiest最容易的，最高级；easily容易地，副词。这里是将现在语音指令下的生活和过去对比，使生活“更轻松”，用比较级 ，“easy”的比较级是“easier”。故选B。 13．句意：然而，爸爸坚持认为她必须学习基本的技术安全规则。 learns学习，第三人称单数形式；learned学习，过去式；must learn必须学习；learning学习，动名词形式 。根据“Dad insists she...basic tech safety rules.”和“Convenience shouldn’t replace caution”可知，基本的安全规则是“必须学习”的内容。 故选C。 14．句意：科技与传统之间的这种平衡仍然是现代生活的关键。 remain仍然是，原形；remains仍然是，第三人称单数形式；remained仍然是，过去式；will remain将仍然是，一般将来时。此句陈述一般事实，用一般现在时，主语“this balance”是第三人称单数，谓语动词用第三人称单数形式“remains”。 故选B。 15．句意：上个月，系统检测到漏水并立即通知了维修服务。 quietly安静地；immediately立即；slowly缓慢地；hardly几乎不。根据“system detected a water leak”和常识可知，检测到漏水应是立即通知维修服务。故选B。 16．句意：但当她自己尝试更新软件时，不小心把自己锁在了门外。 herself她自己；himself他自己；itself它自己；themselves他们自己。根据“she accidentally locked herself out”可推出，这里是说奶奶自己尝试更新软件。故选A。 17．句意：爸爸教她按照网上的分步教程操作。 ignore忽视；follow遵循；create创造；delete删除。根据“step-by-step tutorials online”可知，这里是按照网上教程操作。故选B。 18．句意：现在她甚至还帮助邻居修理他们的智能设备。 repair修理，原形；repairing修理，动名词形式；repaired修理，过去式；repairs修理，第三人称单数形式 。“help sb. do sth.”是固定搭配，意为“帮助某人做某事”，所以用动词原形“repair”。故选A。 19．句意：尽管存在挑战，但如果明智地使用，科技确实能改善生活。 improves改善，第三人称单数形式；improved改善，过去式；has improved已经改善，现在完成时；will improve将改善，一般将来时。此句陈述一般事实，用一般现在时。主语“technology”是不可数名词，谓语动词用第三人称单数形式“improves”。故选A。 20．句意：尽管存在挑战，但如果明智地使用，科技确实能改善生活。 wisely明智地；carelessly粗心地；quickly快速地；proudly骄傲地。根据语境可知，此处表达的是合理、明智地使用科技，能改善生活。故选A。 二、语法填空 阅读下面短文,根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的正确形式。 Nowadays, smart technology is changing people’s daily lives greatly, especially in many modern 1 (flat) around us. It makes our living experience much easier and more comfortable than before. In the past, 2 (we) living conditions were quite different. The old streets were narrow, and traditional houses needed lots of hard work to keep clean. We had to 3 (careful) sweep the floor again and again to clear all the dirt. Also, we needed to check doors, lights and air conditioners one by one before 4 (go) out, which always cost us plenty of time. However, smart homes are totally 5 (lead) us to a new way of life today. They are so convenient that we can control almost everything with our phones 6 simple voices. When we are still on the way home, we can turn 7 lights and adjust (调节) the temperature in advance. Smart cleaners can clear dirt automatically, so we no longer need to spend hours doing 8 (tired) housework. Even if we leave our flats in a hurry, we can check all smart devices (设备) far away. In fact, smart homes not only bring comfort, 9 also show the fast development of science. They have 10 (help) us live a high-quality life and allowed us to enjoy every warm moment at home. We believe technology will keep improving and bring us a better future. 【答案】 1．flats 2．our 3．carefully 4．going 5．leading 6．or 7．on 8．tiring 9．but 10．helped 【导语】本文介绍智能科技极大地改变人们的日常生活，对比过去的居住条件，讲述智能家居带来的便利，体现科学技术的飞速发展。 【详解】1．句意：如今，智能技术正在极大地改变人们的日常生活，尤其是在我们周围许多现代公寓里。 many后接可数名词复数；flat意为“公寓”，其复数形式为flats，符合语境。 2．句意：在过去，我们的生活条件大不相同。 空格后是名词短语living conditions，需要形容词性物主代词修饰名词；we的形容词性物主代词是our，表示“我们的”，符合语境。 3．句意：我们必须仔细地一遍又一遍扫地，清除所有灰尘。 此处需要副词修饰动词sweep；careful是形容词，副词形式为carefully，表示仔细地，符合语境。 4．句意：而且，我们出门前需要逐一检查门、灯和空调，这总是花费我们大量时间。 before在此处为介词，介词后动词要用动名词形式；go的动名词是going，符合语境。 5．句意：然而，智能家居正引领我们走向全新的生活方式。 本句时态为现在进行时，结构为 be+现在分词；lead的现在分词是leading，符合语境。 6．句意：它们非常方便，我们可以用手机或者简单语音控制几乎所有东西。 本句表示两种控制方式二选一，or是连词，意为“或者”，表选择关系，符合语境。 7．句意：当我们还在回家路上时，我们可以提前打开灯、调节温度。 turn on为固定短语，意为“打开电器”；介词on和turn构成搭配，符合语境。 8．句意：智能清洁设备可以自动除尘，我们不再需要花费数小时做令人疲惫的家务。 此处修饰名词housework，要用-ing结尾形容词；tiring表示“令人疲惫的”符合语境。 9．句意：事实上，智能家居不仅带来舒适。也展现科学的快速发展。 固定搭配not only...but also...意为“不仅……而且……”，符合语境。 10．句意：它们帮助我们过上高质量生活，让我们在家享受每一个温暖瞬间。 本句为现在完成时，结构have+过去分词；help的过去分词是helped，符合语境。 1 / 12 学科网（北京）股份有限公司 $