Unit 6重点知识梳理+练习 2025-2026学年沪教版英语七年级下册

该初中英语讲义围绕“Electricity everywhere”主题，通过表格系统梳理单元核心词汇（分名词、动词等类别）和短语，用对比框架呈现electric/electrical/electronic等易混词辨析，结合思维导图式考点精讲，构建“词汇-短语-语法-写作”的递进知识脉络，突出情态动词、短语辨析等重难点的内在联系。 讲义亮点在于分层练习设计，从基础词汇选择（如“switch off”用法）到考点专项（如try to do/doing辨析）再到综合测试，搭配记忆口诀和范文示例，助力学生提升语言运用能力与思维品质。书面表达提供写作要点和模板，支持不同层次学生自主复习，教师可据此实施精准化教学。

【沪教】七下英语·Unit 6重点知识梳理+练习 ( Unit 6 Electricity everywhere ) 一、重点词汇梳理 1. 名词 单词 音标 词性 中文释义 battery /'bætri/ n. 电池 electricity /ɪ 'lek'trɪsΘti/ n. 电； 电能 task /tɑ:sk/ n. 任务；活动 while /waɪl/ n. 一段时间；一会儿 fridge /frɪd3/ n. 冰箱 yogurt /'jDɡΘt/ n. 酸奶 safety /'seɪfti/ n. 安全；平安 instruction /ɪn'strΛkʃn/ n. 用法说明；操作指南 instructor /ɪn'strΛktΘ(r)/ n. 教练；导师 connection /kΘ'nekʃn/ n. 连接 amount /Θ'maunt/ n. 数量；金额 2. 动词 单词 中文释义 connect (使)连接 power 驱使；推动（机器或车辆） instruct 指示；教导 3. 形容词 单词 中文释义 safe 安全的 household 家庭的 powerful 有力量的；强有力的 electric 用电的； 由电驱动的 electrical 电力的；与电有关的 electronic 电子的； 电子设备的 4. 介词 单词 中文释义 against 紧靠；碰；撞 词汇衍生 原词 衍生词 词性/含义 safe safety n. 安全 instruct instructor n. 指导者；教练 connect connection n. 连接 power powerful adj. 有影响力的；力量大的 巳 基础词汇练习 ( 1. Don . t forget to ______ the lights when you leave the room . A. switch off B . switch on C . switch up D . switch down 2. The ______ in the fridge quickly went bad without electricity . A. food B . vegetable C . things D . drinks 3. Please read the ______ carefully before using the new appliance . A. instructions B . instruction C . instructing D . instructed 4. More than 2.2 million homes and businesses ______ in the activity . A. joined B . took part in C . attended D . joined in 5. The same ______ of electricity could power thousands of computers for an hour . A. number B . amount C . quantity D . sum ) ( ✅ 参考答案 1. A 2. C 3. A 4. A 5. B ) 二、重点短语 英文短语 中文释义 have something in common 有相同的特征（或特点等） light bulb 电灯泡 air conditioner 空调机；空调设备 video game 电子游戏 run out of 用完；耗尽 go bad 变质 electric car 电动汽车 electrical appliance 电器 care about 关注；担忧 climate change 气候变化 join in 参加；加入 turn out 结果；证明 ……是 … … get dark 变黑 ，变暗 even worse 更糟糕的是 by hand 用手 go on a bike trip 骑自行车旅行 in the countryside 在乡村 imagine doing sth. 想象做某事 the amount of ……的数量（不可数） at the speed of... 以 ……的速度 switch off 关闭（电器） switch on 打开（电器） take part in 参加；积极参与 join 加入（组织） attend 参加； 出席 connect...to 把 ……连接到 be connected with/to 与 ……相连/联系 θ switch off / switch on 辨析： switch off 关闭（电器） ，等同于 turn off switch on 打开（电器） ，等同于 turn on注意： switch off / on 是英式英语更常用的表达turn off / on 是美式英语更常用的表达 例句： · All these pictures have one thing in common.（所有这些图片有一个共同点。） · Why do you think electricity is important? · Try living without electricity for a weekend. · Our tablet ran out of battery.（我们的平板电脑没电了。） · Switch off lights when you leave home. · Read instructions carefully before using. ( · Take part in the activity to save ene rgy. ) 巳 短语练习 ( 1. I ______ all my money yesterday . A. ran out B . ran out of C . ran of D . run out of 2. The milk in the fridge ______ quickly without electricity . A. go bad B . goes bad C . went bad D . went to bad 3. Please ______ the lights before you go to bed . A. switch on B . switch off C . switch up D . switch down 4. Many students ______ the English club last term . A. attended B . took part in C . joined D . joined in 5. A large ______ of people joined in the activity . A. amount B . number C . quantity D . sum ) ( ✅ 参考答案 1. B 2. C 3. B 4. C 5. B ) 三、核心考点精讲 考点1： have something in common 的用法 含义：有相同的特征（或特点等） 拓展： · have a lot/much in common 有很多共同之处· have nothing/little in common 没有共同之处例句： · We have a lot in common. · They have nothing in common. ( 考点2： electric / electrical / electronic 辨析 ) ( 单词 ) ( 含义 ) ( 搭配场景 ) ( electric ) ( 用电的； 由电驱动的 ) ( electric car 电动汽车； electric kettle 电水壶 ) ( electrical ) ( 电力的；与电有关的 ) ( electrical appliance 电器； electrical system 电气系统 ) ( electronic ) ( 电子的； 电子设备的 ) ( electronic device 电子设备； electronic music 电子音乐 ) ( 记忆口诀： Electric ： 电驱动 ，直接带电； Electrical ： 电系统 ，工程覆盖； Electronic ： 电子芯 ，数字主宰。 ) 考点3：try to do vs try doing 辨析 结构 含义 例句 try to do sth. 努力/试图做某事 She tried to finish her homework early. try doing sth. 尝试做某事 Try adding sugar if coffee is bitter. try one's best to do sth. 尽某人最大努力做某事 I'll try my best to finish the task. 考点4：turn out 的用法 含义：结果是；原来是 用法： ① turn out + 形容词 The cake turned out delicious. ② turn out + 不定式 She turned out to be a doctor. ③ turn out + that 从句 It turned out that they were friends. 考点5： run out of vs run out 辨析 短语 主语 结构 例句 run out of 人 人 + run out of + 物 I ran out of money. run out 物 物 + run out The money ran out. 注意： ran out of 意为"耗尽；用完" ，主语通常是人 考点6： since 的用法 ① 引导原因状语从句 Since you know the answer, tell me.（既然你知道答案 ，告诉我。） ② 引导时间状语从句 I've lived here since I was born.（自我出生就住在这里。） 注意： since 引导原因状语从句时 ，语气比 because 弱 考点7：take part in / join / attend 辨析 短语 含义 用法 take part in 积极参加大型活动 指参加大型集体性活动 ，发挥一定作用 join 加入组织 指加入某团体、组织 ，成为成员之一 join in 参加小型活动 参加竞赛、娱乐、游戏等 attend 参加； 出席 参加会议、典礼、报告等 考点8：a number of / an amount of 辨析 短语 修饰对象 主谓一致 例句 a number of 可数名词复数 复数动词 A number of students are studying. the number of 可数名词复数 单数动词 The number of students is increasing. an amount of 不可数名词 单数动词 An amount of money was donated. the amount of 不可数名词 单数动词 The amount of water is limited. 考点9：connect 的用法 connect ... to ... 把……连接到；相连 The USB cable connects the camera to the computer. connect ... with ... 把……与……联系起来 The author connected the story with real historical events. be connected with/to ... 与……相连/联系 All your festivals seem to be connected with history. 考点10：too / also / as well / either 辨析 单词 用法 位置 例句 too 也 肯定句末 ，用逗号隔开 I like reading, and I like music too. also 也 句中 ， be动词后 ，行为动词前 He is a teacher, and he is also a writer. as well 也 肯定句末 ，不用逗号 She enjoys painting, and loves singing as well. either 也 否定句末 ，用逗号隔开 I don.t like coffee, and I don.t like tea, either. 巳 考点专项练习 ( 1. What do these pictures have ______? A. with common B . in common C . for common D . at common 2. He studied ______ engineering at university . A. electric B . electrical C . electronic D . electricity 3. — I tried ______ it out in this way , but I failed . — Why not ______ it in some other ways ? A. to work ; try doing B . to work ; try to do C . working ; to try to do D. to working ; to try doing 4. The result ______ that the man had nothing to do with this case . A. turned out B . turned around C . turned to D . turned off 5. Grace bought a lot of clothes and ______ all her money . A. run out B . run out of C . ran of D . ran out of ) ( ✅ 参考答案 1. B 2. B 3. A 4. A 5. D ) 四、语法：情态动词 1. can / could 的用法 用法 含义 例句 表示能力 能；会（could是can的过去式） She can drive, but she can't ride a bike. 表示请求/许可 可以（could语气更委婉） You can go there now. / Could I use your bicycle? 表示客观可能性 可能 The girl in the classroom can't be Mary. 注意： 表示请求时 ，could语气比can更委婉；表示可能性时 ，could语气比can更不确定 2. must 的用法 用法 含义 否定式 例句 表示必须 必须 mustn't（禁止；不准） I must finish the work today. 表示非常肯定的猜测 一定；准是 He must be at home. The light is on. 注意： 表示否定推测时 ，用can't 表示肯定推测时 ，用must 3. must 的特殊用法 结构 含义 例句 must + 动词原形 主观上的必要 You must stop smoking.（你必须戒烟。） have to + 动词原形 客观实际的需要 If he misses the last bus, he will have to walk home. 注意： must表示说话人主观上的必要 have to表示客观实际的需要 4. may 的用法 用法 含义 例句 表示请求/允许 可以 May I borrow your pen? 表示不太肯定的猜测 有可能 It may rain later. 表示祝愿或希望 祝福 May you succeed! 注意： may还可以用于表示正式的请求和祝愿 巳 语法专项练习 ( 1. You ______ eat in the classroom . A. don.t B. can.t C. not D. no 2. We should ______ water for the animals in the zoo . A. provide B . provides C . provided D . providing 3. She ______ get up early to catch the first bus . A. have to B . has to C . having to D . to have to 4. — Must I finish my homework now ? — No , you ______. You can do it tomorrow . A. mustn . t B . can . t C . need n . t D . don . t have to 5. — Excuse me , sir . You ______ open the door before the taxi stops . A. mustn . t B . need n . t C . may not D . don . t have to 6. — Is that man Mr . Wang ? — No , it ______ be him . He is on a tour of Macao now . A. can . t B . must C . may D . should ) ( ✅ 参考答案 1. B 2. A 3. A 4. D 5. A 6. A ) 五、易混点辨析 易混点 用法区别 例句 electric / electrical / electronic electric（用电的） electric car 电动汽车 electrical（与电有关的） electrical appliance 电器 electronic（电子的） electronic device 电子设备 try to do / try doing try to do（努力做） She tried to finish her homework. try doing（尝试做） Try adding sugar. run out of / run out run out of（人+物） I ran out of money. run out（物作主语） The money ran out. take part in / join / attend take part in（积极参加） take part in the activity. ( join （加入组织） join the club. join in （参加小型活动） join in the game. attend （参加； 出席） attend the meeting. too / also / as well / either too （肯定句末， 用逗号） I like reading , and I like music too. also （句中 ， be 动词后） He is a teacher, and he is also a writer . as well （肯定句末 ，不用 逗号） She enjoys painting, and loves singing as well. either （否定句末 ，用逗 号） I don ' t like coffee , and I don 't like tea , either . a number of / an amount of a number of （可 数名词） A number of students. an amount of （不可数名 词） An amount of money. switch off / turn off switch off （英 式） Switch off the TV. turn off （美式） Turn off the TV. ) 六、书面表达：节约用电倡议书 写作要点： 1. 活动的目的 2. 节约用电的具体做法 3. 呼吁大家节约用电 常用句型： 开头： · Have you noticed that electricity waste happens every minute in our school? · I'd like to call on everyone to save electricity. 主体： · Most of our electricity is from natural resources such as coal. · These resources are limited because they are not renewable. · Therefore, we must save them. · First, please remember to turn off lights when you don't need them. · Second, try to use electronic products as little as possible. · Third, do not overuse them. · Use new products that consume less electricity. 结尾： · If everyone can do these things, the world will become better. · Let's save electricity together. ( 范文示例： Dear schoolmates, ) Have you noticed that electricity waste happens every minute in our school? I.d like to call on everyone to save electricity because most of our electricity is from natural resources such as coal, and these resources are limited because they are not renewable. Therefore, we must save them, and my following suggestions will greatly reduce everyone.s electricity usage. First, please remember to turn off lights when you don.t need them. Second, try to use electronic products as little as possible and do not overuse them. Third, use new products that consume less electricity, such as new types of light bulbs. If everyone can do these things, the world will become better and better. Students. Union 16 June 巳 单元综合测试 ( 1. ______, the population of the city grew quickly . A. As a result of B . As a result C . Since D . Because 2. Please ______ the monitor to the computer . A. connect B . connect to C . connect with D . be connected to 3. You ______ play basketball two years ago . — No , but I ______ play it quite well now . A. Could ; can B . Do ; can C . Did ; could D . Can ; could 4. — Excuse me . ______ I come in ? — Sure . Come in here . A. Do B. Did C. Will D. May 5. Many important people will ______ the meeting tomorrow . A. join B . take part in C . join in D . attend 6. In our school library , there ______ a number of books on science . A. is B. are C. has D. have ) ( ✅ 参考答案 1. B 2. A 3. A 4. D 5. D 6. B ) 祝同学们学习进步！节约用电，从我做起！ 学科网（北京）股份有限公司 $