Unit 6 Electricity everywhere语法精讲精练 - 2024-2025学年沪教版(2024)七年级下册英语

2025-04-28
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李华的鹰鸽梨柿
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学段 初中
学科 英语
教材版本 初中英语沪教版七年级下册
年级 七年级
章节 Unit 6 Electricity everywhere
类型 作业-同步练
知识点 -
使用场景 同步教学-新授课
学年 2025-2026
地区(省份) 全国
地区(市) -
地区(区县) -
文件格式 DOCX
文件大小 38 KB
发布时间 2025-04-28
更新时间 2025-04-28
作者 李华的鹰鸽梨柿
品牌系列 -
审核时间 2025-04-28
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沪教版(2024)七年级下册英语Unit 6 Electricity everywhere 语法精讲精练(含解析) 情态动词 1. can的用法 - 表示能力,意为“能;会” 。 - 表示许可,常用于口语,相当于may 。 - 表示推测,常用于否定句和疑问句,意为“可能” ,can't意为“不可能” 。 - could是can的过去式,表示过去的能力,意为“能;会” 。 - 在表示请求、许可时,can和could有时态区别,could语气更委婉客气 。 We can use electricity to do many things. — Can you think of an example? —Yes, I can. / No, I cannot / can't. 2. may的用法 - 表示请求、许可 。 - 表示推测,谈论可能性,意为“可能;或许” ,一般用于肯定句 。 - might是may的过去式,在表示推测时两者无时态区别,might可能性低于may 。 You may / can turn on the TV. You may not / cannot play in the kitchen. —May / Can I use your mobile phone? —Yes, you may / can. / No, you may not / can't. 3. must的用法 - 意为“必须;一定” 。 - 否定形式mustn't意为“一定不要;禁止;不许” 。 - 对must引导的一般疑问句,肯定回答用must,否定回答用needn't或don't have to 。 - 可表示很有把握的推测,意为“一定会;肯定会” ,一般用于肯定句 。 We must always be careful with electricity. We mustn't touch electrical appliances with wet hands. —Must I come over now? —Yes, you must. / No, you needn't. (needn't = you don't have to) 语法专项练习题 一、单项选择题 1. You ______ turn off the lights when you leave the classroom. It’s our duty to save electricity. A. can B. may C. must D. need 2. —______ I use your computer? Mine doesn’t work. —Sure. But you ______ keep it clean. A. May; must B. Must; can C. Can; may D. Need; must 3. We ______ touch the electrical appliances with wet hands. It’s very dangerous. A. can B. must C. mustn’t D. needn’t 4. Electricity is very useful, ______ we should use it carefully. A. so B. but C. or D. and 5. It’s important for us ______ how to use electricity safely. A. know B. knowing C. to know D. knew 6. Remember ______ the power when you don’t use the electrical equipment. A. turn off B. to turn off C. turning off D. turned off 7. —______ does electricity come into our homes? —Through wires. A. Where B. How C. What D. Which 8. The fridge makes ______ possible for us to keep food fresh. A. it B. this C. that D. one 9. We can use electricity ______ many things, like cooking and lighting. A. do B. to do C. doing D. done 10. Although we can’t see electricity, ______ it’s very powerful. A. but B. and C. / D. so 11. The workers are ______ the new machine to the power supply. A. connect B. connects C. connecting D. connected 12. —Can you tell me ______ about electricity? —Sure. It’s a form of energy. A. anything B. something C. nothing D. everything 13. We should avoid ______ electricity because it’s precious. A. waste B. to waste C. wasting D. wasted 14. ______ important it is to follow the safety rules of using electricity! A. What B. What a C. How D. How a 15. The light bulbs give light to the room. The underlined part “give light to” can be replaced by ______. A. light up B. turn on C. put on D. take on 二、语法填空题 1. You ______ (must) play football on the street. It’s too dangerous. 2. ______ (May) I borrow your dictionary? I left mine at home. 3. It’s necessary for us ______ (learn) how to protect ourselves from electricity. 4. Remember ______ (close) the window when you go out. It’s going to rain. 5. We can use electricity ______ (run) machines in factories. 6. The TV makes ______ possible for us ______ (watch) interesting programs at home. 7. ______ (Although) you can’t see air, ______ it exists everywhere. 8. We should avoid ______ (make) noise in the library. 9. The workers are busy ______ (connect) the wires to the power station. 10. How ______ (do) electricity get into our flats? 11. ______ (save) electricity is our responsibility. 12. It’s ______ (importance) to check the electrical equipment regularly. 13. You ______ (need) to buy a new book. You can borrow one from the library. 14. ______ (What) useful information it is about electricity! 15. We use electricity ______ (heat) water in our daily life. 三、句型转换题 1. You must finish your homework on time.(改为否定句) You ______ ______ your homework on time. 2. We can use electricity to cook food.(对划线部分提问) ______ ______ we use electricity ______ ______? 3. It’s important to learn English well.(改为感叹句) ______ ______ it is to learn English well! 4. Although he is young, he knows a lot.(改为同义句) He is young, ______ he knows a lot. 5. The computer makes it possible for us to work from home.(改为同义句) The computer ______ ______ ______ ______ work from home. 6. You should turn off the lights when you leave.(改为祈使句) ______ ______ the lights when you leave. 7. We use electricity to light our homes.(改为被动语态) Electricity ______ ______ ______ light our homes. 8. It’s dangerous to touch the electrical wires.(改为同义句) ______ ______ ______ ______ touch the electrical wires. 9. We can’t see electricity, but it’s very useful.(用 although 改写句子) ______ we can’t see electricity, it’s very useful. 10. They are connecting the new device to the power.(用 can 改写句子) They ______ ______ the new device to the power. 11. You must wear a helmet when riding a bike.(改为一般疑问句) ______ I ______ a helmet when riding a bike? 12. To save water is necessary.(用 it 作形式主语改写句子) ______ ______ necessary ______ ______ water. 13. We should avoid wasting food.(改为同义句) We should avoid ______ ______ food. 14. The lamp gives light to the whole room.(对划线部分提问) ______ ______ the lamp ______ to the whole room? 15. It’s a useful book.(改为感叹句) ______ ______ ______ book it is! 答案及解析 一、单项选择题 1.答案:C 解析:根据 “It’s our duty to save electricity.” 可知,离开教室 “必须” 关灯,must 表示 “必须”,符合语境。can“能,可以”;may “可以”;need “需要”,均不符合。 2.答案:A 解析:第一空 “May I...?” 用于请求许可,意为 “我可以…… 吗?”;第二空 must 表示 “必须”,强调对方必须保持电脑干净,符合语境。 3.答案:C 解析:接触带电设备很危险,所以 “禁止” 用湿手触摸,mustn’t 表示 “禁止”。can “能”;must “必须”;needn’t “不必”,均不符合。 4.答案:A 解析:电很有用,“所以” 我们应该小心使用,so 表示因果关系,符合逻辑。but “但是”;or “或者”;and “和”,均不符合。 5.答案:C 解析:It’s + adj. + for sb. + to do sth. 是固定句型,意为 “对某人来说做某事是…… 的”,所以用 to know。 6.答案:B 解析:remember to do sth. 表示 “记得去做某事(事情还未做)”,此处指离开时记得去关电源,所以用 to turn off。 7.答案:B 解析:根据答语 “Through wires.” 可知,询问电进入我们家的方式,用 How 提问。Where 提问地点;What 提问事物;Which 提问哪一个,均不符合。 8.答案:A 解析:make it possible for sb. to do sth. 中 it 作形式宾语,真正的宾语是后面的动词不定式短语,所以用 it。 9.答案:B 解析:use... to do sth. 表示 “用…… 做某事”,是固定搭配,所以用 to do。 10.答案:C 解析:although 与 but 不能同时使用,所以此处不填。 11.答案:C 解析:句子时态为现在进行时,结构为 be + doing,所以用 connecting。 12.答案:B 解析:在希望得到对方肯定回答的疑问句中,用 something 表示 “某事”。 13.答案:C 解析:avoid doing sth. 表示 “避免做某事”,是固定搭配,所以用 wasting。 14.答案:C 解析:感叹句结构为 “How + adj. + 主语 + 谓语!”,此处强调 important,所以用 How。 15.答案:A 解析:“give light to” 意为 “照亮”,与 “light up” 意思相近。turn on “打开”;put on “穿上”;take on “呈现”,均不符合。 二、语法填空题 1.答案:mustn’t 解析:在街道上踢足球危险,所以是 “禁止”,用 mustn’t。 2.答案:May 解析:“May I...?” 用于请求许可,此处表示 “我可以借你的字典吗”。 3.答案:to learn 解析:It’s + adj. + for sb. + to do sth. 固定句型,用 to learn。 4.答案:to close 解析:remember to do sth. 表示记得去做某事,此处指出去时记得关窗,用 to close。 5.答案:to run 解析:use... to do sth. 固定搭配,用 to run。 6.答案:it; to watch 解析:make it possible for sb. to do sth. 结构,it 作形式宾语,真正宾语是 to watch。 7.答案:/; / 解析:although 不与 but 连用,此处不填。 8.答案:making 解析:avoid doing sth. 固定搭配,用 making。 9.答案:connecting 解析:be busy doing sth. 表示忙于做某事,用 connecting。 10.答案:does 解析:主语 electricity 是不可数名词,一般现在时的特殊疑问句中,借助助动词 does。 11.答案:Saving 解析:动名词作主语,所以用 Saving。 12.答案:important 解析:it’s + 形容词 + to do sth. ,importance 的形容词形式是 important。 13.答案:needn’t 解析:可以从图书馆借书,所以没必要买新书,用 needn’t。 14.答案:What 解析:感叹句结构 “What + 形容词 + 不可数名词 + 主语 + 谓语!”,information 是不可数名词,用 What。 15.答案:to heat 解析:use... to do sth. 固定搭配,用 to heat。 三、句型转换题 1.答案:mustn’t finish 解析:must 的否定式是 mustn’t,后接动词原形。 2.答案:What can; to do 解析:对做的事情提问用 What,原句 use... to do sth. 结构保留。 3.答案:How important 解析:How + 形容词 + 主语 + 谓语!构成感叹句,此处强调 important。 4.答案:but 解析:although 与 but 可互换,但不能同时使用,此处用 but。 5.答案:makes it possible to 解析:make it possible for sb. to do sth. 可简化为 make it possible to do sth. 。 6.答案:Turn off 解析:将陈述句改为祈使句,动词原形开头。 7.答案:is used to 解析:一般现在时的被动语态结构为 be + 过去分词,原句 use... to do sth. 结构保留。 8.答案:Touching the electrical wires is dangerous 解析:将 it 作形式主语的句子改为动名词作主语的句子。 9.答案:Although 解析:用 although 改写,注意 although 不与 but 连用。 10.答案:can connect 解析:情态动词 can 后接动词原形。 11.答案:Must; wear 解析:将 must 提前构成一般疑问句,后接动词原形。 12.答案:It is; to save 解析:It’s + adj. + to do sth. 结构,it 作形式主语。 13.答案:not saving 解析:avoid doing sth. 的否定形式是 avoid not doing sth. 。 14.答案:What does; give 解析:对做的事情提问用 What,原句是一般现在时,主语 the lamp 是第三人称单数,借助助动词 does,后接动词原形。 15.答案:What a useful 解析:What + a/an + 形容词 + 可数名词单数 + 主语 + 谓语!构成感叹句,useful 是辅音音素开头,用 a。 学科网(北京)股份有限公司 $$

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Unit 6 Electricity everywhere语法精讲精练 - 2024-2025学年沪教版(2024)七年级下册英语
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Unit 6 Electricity everywhere语法精讲精练 - 2024-2025学年沪教版(2024)七年级下册英语
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Unit 6 Electricity everywhere语法精讲精练 - 2024-2025学年沪教版(2024)七年级下册英语
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