Unit 4 Smart Home单元重点易错专项训练 2026-2027学年沪教版（五四学制）七年级英语上册

**基本信息** 聚焦9大核心考点，以“易错速记”系统提炼语法规则，通过基础-提升-拓展三层训练构建从用法到应用的逻辑链条，强化语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |9大考点|每考点9题（3基础+3提升+3拓展）|规则梳理（如情态动词无人称变化）+易错警示（如can后接原形）|基础用法→易错辨析→情境应用，形成语法点认知闭环|

Unit 4 Smart Home · 单元重点易错专项训练 沪教版（五四学制）七年级上册 Unit 4 Smart Home 单元重点易错专项训练 （9大考点 · 基础+提升+拓展 三层训练 · 附详细解析） ★ 考点一：情态动词 can / can't / could 表能力 ★ ⚠ 易错速记：① can + 动词原形（无人称/数变化）：I can swim. He can swim.；② 否定 can't = cannot；疑问 Can you...? 回答 Yes, I can. / No, I can't.；③ could 表过去能力（I could run fast when I was young）或委婉请求（Could you help me?）；④ 易错：can后面永远用原形（× can swims → √ can swim）；三单不加s；过去式could没有人称变化 ▷ 基础题（选择题） ▷（ ）1. Jam ______ swim very well. A. can B. is C. does D. was ▷（ ）2. Lily ______ speak English when she was five. A. can B. could C. is D. does ▷（ ）3. — Can Chen Wu ride a bike? — ______. A. Yes, he can B. Yes, he does C. Yes, he is D. No, he can ◇ 提升题（选择题） ◇（ ）1. Zhang Hui ______ use the smart fridge by himself now. A. can B. could C. was D. does ◇（ ）2. When they were young, they ______ run very fast. A. can B. could C. are D. do ◇（ ）3. ______ you please turn on the light for me? A. Can B. Could C. Do D. Are ★ 拓展题（用适当形式填空） ★（ ）1. She ______ (can) cook when she was only eight. ★（ ）2. He ______ (not can) find his smart phone this morning. ★（ ）3. ______ (can) your brother control the robot? ★ 考点二：should / shouldn't / had better 提建议 ★ ⚠ 易错速记：① should + 原形（应该）：You should check the door.；② shouldn't = should not（不应该）：You shouldn't leave it open.；③ had better + 原形（最好）：You had better turn it off.；否定 had better not do；④ 易错：should无人称变化（× he shoulds → √ he should）；had better 后接原形不是to do；Why not + 原形 = Why don't you + do ▷ 基础题（选择题） ▷（ ）1. You ______ check the smart lock before leaving. A. should B. shall C. will D. would ▷（ ）2. We ______ waste electricity at home. A. should B. shouldn't C. had better D. can ▷（ ）3. You had better ______ the window now. It's cold. A. close B. to close C. closing D. closed ◇ 提升题（选择题） ◇（ ）1. Lily has a cold. She ______ go to school today. A. should B. shouldn't C. can D. will ◇（ ）2. You had better ______ too much time on games. A. not spend B. don't spend C. not to spend D. spending ◇（ ）3. Why ______ turn off the heater before bed? A. not we B. don't we C. we not D. not to ★ 拓展题（用适当形式填空） ★（ ）1. You ______ (should) eat too much junk food. ★（ ）2. He had better ______ (go) to bed early tonight. ★（ ）3. They ______ (should) clean the room every day. ★ 考点三：被动语态初步（am/is/are + done） ★ ⚠ 易错速记：① 结构：be + 过去分词；一般现在时被动：am/is/are done；② 智能家电常用被动：The light is turned on by voice. The door is locked automatically.；③ 变被动步骤：宾语变主语→be+done→by+原主语；④ 易错：happen / take place 无被动（× is happened → √ happens）；遗漏be动词（× The room cleaned → √ The room is cleaned）；⑤ 不及物动词无被动 ▷ 基础题（选择题） ▷（ ）1. The door ______ by the smart system every evening. A. locks B. is locked C. was locked D. locked ▷（ ）2. The lights ______ on when it gets dark. A. turn B. are turned C. is turned D. turned ▷（ ）3. English ______ in many countries. A. is spoken B. speaks C. is speak D. was spoken ◇ 提升题（选择题） ◇（ ）1. The room ______ every day by the robot cleaner. A. cleans B. is cleaned C. was cleaned D. are cleaned ◇（ ）2. A new smart fridge ______ in the kitchen now. A. is used B. uses C. is use D. was used ◇（ ）3. The window ______ yesterday afternoon. A. was broken B. broke C. is broken D. breaks ★ 拓展题（用适当形式填空） ★（ ）1. The door ______ (lock) by the app every night. ★（ ）2. The message ______ (send) to all family members just now. ★（ ）3. Food ______ (not waste) in our home. ★ 考点四：祈使句（Be型/Do型/Let型及否定） ★ ⚠ 易错速记：① Do型（动词原形开头）：Turn on the light. Open the door.；② Be型：Be careful. Be quiet.；③ Let型：Let me check. Let's go.；④ 否定：Don't + 原形（Don't touch it.）；Let's not do...；⑤ 易错：祈使句动词永远原形（× Don't touches → √ Don't touch）；Let's = Let us；反义疑问句用will you（Open it, will you?） ▷ 基础题（选择题） ▷（ ）1. ______ on the smart light, please. A. Turn B. Turns C. Turning D. To turn ▷（ ）2. ______ careful with the new device. A. Be B. Are C. Is D. Being ▷（ ）3. Let's ______ the smart home system together. A. check B. to check C. checking D. checked ◇ 提升题（选择题） ◇（ ）1. ______ the window open at night. It's dangerous. A. Don't keep B. Not keep C. Doesn't keep D. Keep not ◇（ ）2. Please ______ me set up the new thermostat. A. help B. helps C. to help D. helping ◇（ ）3. Let's ______ waste water at home. A. not B. don't C. no D. not to ★ 拓展题（用适当形式填空） ★（ ）1. ______ (be) quiet when the baby is sleeping. ★（ ）2. Don't ______ (forget) to lock the door. ★（ ）3. Let me ______ (show) you how it works. ★ 考点五：need to / have to / must 必要性表达 ★ ⚠ 易错速记：① need to + 原形（需要做）：I need to charge my phone. 有人称/时态变化（needs to/needed to）；② have to（不得不）：三单has to；过去had to；否定don't/doesn't/didn't have to；③ must（必须）：否定mustn't = 禁止（≠ don't have to不必）；④ 易错：must提问→否定用needn't（× mustn't）；have to有三单/时态变化（× he have to → √ he has to） ▷ 基础题（选择题） ▷（ ）1. Jam ______ to finish his homework before dinner. A. need B. needs C. needed D. is need ▷（ ）2. Lily ______ to get up early for school every day. A. have B. has C. is D. does ▷（ ）3. You ______ smoke here. It's dangerous. A. mustn't B. needn't C. don't have to D. not have to ◇ 提升题（选择题） ◇（ ）1. — Must I turn off the heater now? — No, you ______. A. mustn't B. needn't C. can't D. don't ◇（ ）2. When she was young, she ______ to walk to school. A. has B. had C. have D. is ◇（ ）3. Chen Wu ______ to buy a new smart speaker yesterday. A. need B. needs C. needed D. is needing ★ 拓展题（用适当形式填空） ★（ ）1. She ______ (need) to clean her room this weekend. ★（ ）2. He ______ (have) to leave early yesterday. ★（ ）3. You ______ (must) park your car here. It's not allowed. ★ 考点六：核心短语辨析（turn on/off/up/down / connect to / check / control） ★ ⚠ 易错速记：① turn on 打开（电器）/ turn off 关闭；turn up 调大（音量/温度）/ turn down 调小；② connect to 连接（connect the phone to the Wi-Fi）；③ check 检查（check the door/check the message）；④ control 控制（control...by voice/app）；⑤ 易错：turn on the TV（√）/ open the TV（×）；turn up the music（√）/ open the music（×）；check it（√）/ check up it（× 代词放中间） ▷ 基础题（选择题） ▷（ ）1. Please ______ the light. It's too dark in the room. A. turn on B. turn off C. turn up D. turn down ▷（ ）2. Could you ______ the music? I can't hear it clearly. A. turn on B. turn off C. turn up D. turn down ▷（ ）3. We should ______ the door before we go out. A. check B. connect C. control D. turn ◇ 提升题（选择题） ◇（ ）1. Lily can ______ her smart home ______ her phone. A. control; by B. connect; to C. check; with D. turn; on ◇（ ）2. Please ______ the TV. The baby is sleeping. A. turn on B. turn off C. turn up D. turn down ◇（ ）3. You can ______ your phone ______ the smart speaker. A. connect; to B. turn; on C. check; with D. control; by ★ 拓展题（用适当形式填空） ★（ ）1. She forgot to turn ______ (off/on) the heater last night. ★（ ）2. Can you help me connect the laptop ______ (to/with) the printer? ★（ ）3. He checks ______ (his email) every morning. ★ 考点七：if 条件状语从句（主将从现 / 主祈从现） ★ ⚠ 易错速记：① 主将从现：If it rains, I will stay home. if从句用一般现在时，主句用will+原形；② 主祈从现：If you are tired, go to bed early. 主句用祈使句（原形）；③ 易错：if从句绝不用will（× If it will rain → √ If it rains）；unless = if...not（Unless you hurry = If you don't hurry）；④ 区分宾语从句if（是否）：I don't know if it will rain. ▷ 基础题（选择题） ▷（ ）1. If it ______ sunny tomorrow, we will go hiking. A. is B. will be C. was D. be ▷（ ）2. If you feel tired, ______ a rest. A. take B. takes C. to take D. taking ▷（ ）3. I will call you if I ______ home early. A. get B. will get C. got D. gets ◇ 提升题（选择题） ◇（ ）1. Unless it ______, we will have the party outside. A. rains B. will rain C. rained D. is raining ◇（ ）2. If Chen Wu ______ hard, he will pass the exam. A. studies B. will study C. studied D. is studying ◇（ ）3. ______ you are late, the teacher will be angry. A. If B. Unless C. Although D. Because ★ 拓展题（用适当形式填空） ★（ ）1. If she ______ (have) time, she will help you. ★（ ）2. If it is too hot, please turn ______ (on/off) the AC. ★（ ）3. Unless you ______ (hurry), you will miss the bus. ★ 考点八：形容词变副词规则（-ly）及 good → well 辨析 ★ ⚠ 易错速记：① 规则：quick→quickly; careful→carefully; safe→safely; happy→happily（y变i+ly）; true→truly（去e+ly）；② 易错：hard（努力）≠ hardly（几乎不！）；high（高）≠ highly（高度地）；③ good形容词→well副词（× He speaks English good → √ He speaks English well）；④ 系动词后接形容词（look/sound/feel + adj）；⑤ friendly是形容词不是副词 ▷ 基础题（选择题） ▷（ ）1. Jam runs very ______ on the playground. A. quick B. quickly C. fastly D. more fast ▷（ ）2. Lily is a ______ student. She studies ______. A. careful; carefully B. carefully; careful C. care; careful D. careful; care ▷（ ）3. The boy fell down and looked very ______. A. sad B. sadly C. unhappily D. bad ◇ 提升题（选择题） ◇（ ）1. Chen Wu worked ______ and passed the exam. A. hard B. hardly C. harder D. hardest ◇（ ）2. The kite flew ______ in the sky. A. high B. highly C. higher D. more high ◇（ ）3. She sings ______ than her sister. A. more beautiful B. more beautifully C. beautiful D. beautifully ★ 拓展题（用适当形式填空） ★（ ）1. He did the homework ______ (careful) and got full marks. ★（ ）2. The children played ______ (happy) in the park. ★（ ）3. She can jump ______ (high) than me. ★ 考点九：How does it work? / What's wrong? / 智能家居住交际用语 ★ ⚠ 易错速记：① How does it work? 它怎么运作？回答用 It works by + doing / It can + do；② What's wrong (with it)? 怎么了？回答用 It doesn't work. / There is something wrong with...；③ 易错：How does it work? ≠ What does it do?（功能）；④ 交际：Can you show me how to use it? / Let me show you. / It's very convenient. / In the future, homes will be smarter.；⑤ future前用in（in the future ≠ in future） ▷ 基础题（选择题） ▷（ ）1. — ______ does the smart lock work? — It works by voice. A. What B. How C. Why D. When ▷（ ）2. — What's wrong with the heater? — ______. A. It works well B. It doesn't work C. It is working D. It worked ▷（ ）3. ______ the future, our homes will be much smarter. A. In B. On C. At D. For ◇ 提升题（选择题） ◇（ ）1. — Can you show me ______ to use the new device? — Sure. A. what B. how C. which D. where ◇（ ）2. There is ______ wrong with the robot cleaner. It stopped. A. something B. anything C. nothing D. everything ◇（ ）3. — The light doesn't turn on. — ______. Let me check. A. That's right B. No problem C. It doesn't matter D. You're welcome ★ 拓展题（用适当形式填空） ★（ ）1. ______ (how) does the smart fridge keep food fresh? ★（ ）2. There is something wrong ______ (with/for) the door lock. ★（ ）3. In the future, I think homes ______ (be) much smarter. 📖 参考答案与详细解析 ◎考点一：情态动词 can / can't / could 表能力 【基础题】 1. Jam ______ swim very well. 答案：A。解析：can + 原形swim。can无人称变化，三单不加s。 2. Lily ______ speak English when she was five. 答案：B。解析：when she was five提示过去。could表过去能力。 3. — Can Chen Wu ride a bike? — ______. 答案：A。解析：Can提问用can回答。Yes, he can. / No, he can't. 【提升题】 1. Zhang Hui ______ use the smart fridge. 答案：A。解析：now提示现在。can + 原形use。情态动词无三单变化。 2. When they were young, they ______ run fast. 答案：B。解析：were young过去时。could表过去能力。 3. ______ you please turn on the light? 答案：B。解析：Could you please do...? 委婉请求。比Can更礼貌。 【拓展题】 1. could. 答案：could。解析：when she was eight过去时。can的过去式could。 2. couldn't. 答案：couldn't。解析：this morning提示过去。can的过去否定couldn't。 3. Can. 答案：Can。解析：情态动词疑问句倒装。Can提前，后接原形control。 ◎考点二：should / shouldn't / had better 提建议 【基础题】 1. You ______ check the smart lock. 答案：A。解析：should + 原形check。建议检查智能锁。 2. We ______ waste electricity. 答案：B。解析：shouldn't = 不应该。不该浪费电。 3. You had better ______ the window. 答案：A。解析：had better + 原形close。最好关窗。 【提升题】 1. Lily has a cold. She ______ go to school. 答案：B。解析：感冒了不应该上学。shouldn't = 不应该。 2. You had better ______ too much time on games. 答案：A。解析：had better not + 原形spend。最好不要花太多时间。 3. Why ______ turn off the heater? 答案：B。解析：Why don't we do...? = 我们为什么不...？提建议句型。 【拓展题】 1. shouldn't. 答案：shouldn't。解析：should not = shouldn't。不应该吃太多垃圾食品。 2. go. 答案：go。解析：had better + 原形go。最好早睡。 3. should. 答案：should。解析：should + 原形clean。应该每天打扫房间。 ◎考点三：被动语态初步（am/is/are + done） 【基础题】 1. The door ______ by the smart system. 答案：B。解析：every evening一般现在时→is locked。被动：be + done。 2. The lights ______ on when it gets dark. 答案：B。解析：lights复数→are turned。被动语态be + done。 3. English ______ in many countries. 答案：A。解析：English与speak是被动关系→is spoken。 【提升题】 1. The room ______ every day. 答案：B。解析：every day一般现在时。room单数→is cleaned。 2. A new smart fridge ______ in the kitchen. 答案：A。解析：now提示现在。fridge单数→is used。 3. The window ______ yesterday. 答案：A。解析：yesterday过去时。window单数→was broken。 【拓展题】 1. is locked. 答案：is locked。解析：every night一般现在时。door单数→is locked。 2. was sent. 答案：was sent。解析：just now过去时。message单数→was sent。 3. is not wasted. 答案：is not wasted。解析：food与waste是被动关系。is not wasted = 不被浪费。 ◎考点四：祈使句（Be型/Do型/Let型及否定） 【基础题】 1. ______ on the smart light. 答案：A。解析：祈使句动词用原形Turn。打开智能灯。 2. ______ careful with the new device. 答案：A。解析：Be型祈使句。Be + adj。小心新设备。 3. Let's ______ the smart home system. 答案：A。解析：Let's + 原形check。一起检查智能家居系统。 【提升题】 1. ______ the window open at night. 答案：A。解析：否定祈使句Don't + 原形keep。晚上别开窗。 2. Please ______ me set up the thermostat. 答案：A。解析：祈使句原形help。help sb do sth。 3. Let's ______ waste water. 答案：A。解析：Let's not + 原形。我们不要浪费水。 【拓展题】 1. Be. 答案：Be。解析：祈使句Be型。Be quiet = 安静。 2. forget. 答案：forget。解析：Don't + 原形forget。别忘了锁门。 3. show. 答案：show。解析：Let me + 原形show。让我展示给你看。 ◎考点五：need to / have to / must 必要性表达 【基础题】 1. Jam ______ to finish his homework. 答案：B。解析：Jam单数→needs to。need to有人称变化。 2. Lily ______ to get up early every day. 答案：B。解析：have to三单→has to。Lily单数用has to。 3. You ______ smoke here. It's dangerous. 答案：A。解析：mustn't = 禁止。这里禁止吸烟。 【提升题】 1. — Must I turn it off? — No, you ______. 答案：B。解析：must提问否定用needn't（不必）。mustn't是禁止意思不同。 2. When she was young, she ______ to walk. 答案：B。解析：was young过去时。have to过去式had to。 3. Chen Wu ______ to buy a new speaker. 答案：C。解析：yesterday过去时。need to过去式needed to。 【拓展题】 1. needs. 答案：needs。解析：she单数→needs to。她需要打扫房间。 2. had. 答案：had。解析：yesterday过去时。have to→had to。 3. mustn't. 答案：mustn't。解析：must not = mustn't = 禁止。不允许在这里停车。 ◎考点六：核心短语（turn on/off/up/down / connect to / check / control） 【基础题】 1. Please ______ the light. It's too dark. 答案：A。解析：太暗→打开灯。turn on = 打开（电器）。 2. Could you ______ the music? I can't hear. 答案：C。解析：听不清→调大音量。turn up = 调大。 3. We should ______ the door before going out. 答案：A。解析：出门前检查门。check = 检查。 【提升题】 1. Lily can ______ her smart home ______ her phone. 答案：A。解析：control...by... = 通过...控制。用手机控制智能家居。 2. Please ______ the TV. The baby is sleeping. 答案：B。解析：婴儿在睡觉→关电视。turn off = 关闭。 3. You can ______ your phone ______ the speaker. 答案：A。解析：connect...to... = 把...连接到...。手机连音箱。 【拓展题】 1. off. 答案：off。解析：turn off = 关闭。昨晚忘记关暖气。 2. to. 答案：to。解析：connect...to... = 连接。把笔记本连到打印机。 3. his email. 答案：his email。解析：check + 名词。他每天早上检查邮件。 ◎考点七：if 条件状语从句（主将从现 / 主祈从现） 【基础题】 1. If it ______ sunny, we will go hiking. 答案：A。解析：if从句用一般现在时is。主句will go（主将从现）。 2. If you feel tired, ______ a rest. 答案：A。解析：主祈从现。祈使句用原形take。 3. I will call you if I ______ home early. 答案：A。解析：if从句用一般现在时get。主句will call（主将从现）。 【提升题】 1. Unless it ______, we will have the party. 答案：A。解析：unless = if...not。从句用一般现在时rains。 2. If Chen Wu ______ hard, he will pass. 答案：A。解析：if从句用一般现在时studies。主句will pass。 3. ______ you are late, the teacher will be angry. 答案：A。解析：If引导条件状语从句。如果你迟到，老师会生气。 【拓展题】 1. has. 答案：has。解析：if从句一般现在时。she单数→has time。 2. off. 答案：off。解析：turn off = 关闭。如果太热请关空调。 3. hurry. 答案：hurry。解析：unless = if...not。Unless you hurry = If you don't hurry。 ◎考点八：形容词变副词规则及 good → well 辨析 【基础题】 1. Jam runs very ______. 答案：B。解析：修饰动词run→副词。quick→quickly。 2. Lily is a ______ student. She studies ______. 答案：A。解析：修饰名词student→careful；修饰动词studies→carefully。 3. The boy looked very ______. 答案：A。解析：look系动词后接形容词sad。 【提升题】 1. Chen Wu worked ______ and passed. 答案：A。解析：hard作副词=努力地。hardly=几乎不（意思完全不同）。 2. The kite flew ______ in the sky. 答案：A。解析：fly high飞得高。high作副词。highly=高度地。 3. She sings ______ than her sister. 答案：B。解析：修饰动词sings→副词beautifully。比较级more beautifully。 【拓展题】 1. carefully. 答案：carefully。解析：修饰动词did→副词。careful→carefully。 2. happily. 答案：happily。解析：修饰动词played→副词。happy→happily（y变i+ly）。 3. higher. 答案：higher。解析：修饰动词jump→副词high。比较级than→higher。 ◎考点九：How does it work? / What's wrong? / 智能家居住交际 【基础题】 1. — ______ does the smart lock work? — By voice. 答案：B。解析：回答是方式→How提问。How does it work? 它怎么运作？ 2. — What's wrong with the heater? — ______. 答案：B。解析：What's wrong? 问怎么了→It doesn't work. 它不工作了。 3. ______ the future, homes will be smarter. 答案：A。解析：in the future = 将来。固定搭配用in。 【提升题】 1. — Can you show me ______ to use it? — Sure. 答案：B。解析：how to use = 如何使用。show sb how to do sth。 2. There is ______ wrong with the cleaner. 答案：A。解析：肯定句用something。There is something wrong with... = ...出故障了。 3. — The light doesn't turn on. — ______. Let me check. 答案：B。解析：No problem. = 没问题。我来检查一下。 【拓展题】 1. How. 答案：How。解析：How does it work? 智能冰箱怎么保鲜？ 2. with. 答案：with。解析：There is something wrong with... = ...有问题/出故障。 3. will be. 答案：will be。解析：in the future提示将来时。will + 原形be。 — 练习结束，祝你智能家居生活更智能，学习更进步！ — 第 页 学科网（北京）股份有限公司 $