情态动词同步讲义2026-2027学年冀教版英语七年级上册

2026-08-28
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2026年度冀教版七年级上册情态动词同步讲义 📚学习目标 1. 掌握情态动词共同语法特征,记住情态动词后接动词原形、无人称变化。 2. 掌握 `can / could` 三种含义:能力、可能性、请求许可;区分could表委婉语气和过去式。 3. 掌握 `may / might`:许可、可能性;理解might可能性比may更小。 4. 能够区分不同语境选用can/could/may/might,完成填空、句型转换、改错练习。 ⚠️教学重点&难点 ✅重点 1. 情态动词共性:不能单独作谓语;后接动词原形;否定加not;疑问提到句首;无人称数变化。 2. can/could:能力;推测可能性;请求许可;could语气更委婉。 3. may/might:许可;可能性,might可能性略小于may。 ❌难点(高频易错重点突破) 1. ❌易错1:情态动词后加to。❌He can to swim. ✅He can swim. 2. ❌易错2:can/could表请求,could不是过去式,只是语气委婉。 >Could you open the door?(现在请求,不是过去) 3. ❌易错3:might一般不用于肯定、否定句表许可,多用于疑问句/间接问句。 4. ❌易错4:可能性辨析:`may`可能性>`might`;can用于否定、疑问句表推测。 核心知识精讲 情态动词总述 情态动词表达说话人的观点态度:需要、猜测、意愿、怀疑等。 语法特征 1. 有含义,但不能单独作谓语; 2. 后面跟动词原形;否定:情态动词+not;疑问:情态动词提到句首; 3. 无人称和数的变化,主语是三单也不用变形。 >常见情态动词:can, could, may, might, must, need, shall, should, will, would · can / could 能;可能;可以 >can多用于现在/将来;could多用于过去。 (1)表示能力(相当于be able to) >例句: Can you get it for me? You can order food on your cell phone. I can make noodles myself. Sorry, I can’t follow you. Please say that again. The girl could speak English when she was a child.(过去的能力) The street was icy — the car couldn’t stop in time. How could the man pull a train with his teeth! (2)表示可能性 >①肯定句:can/could表客观可能 Smoking can cause diseases of the lungs. Some of the disadvantages can become real problems if we don’t take care. This could be a class project! >②否定、疑问句中can/could表猜测(教材重点) The boy can’t be so careless. There is someone outside. Who can it be? It couldn’t be true. Could it be Brian? Where could Danny be at that time? (3)表示请求或允许 - can 表请求: Can you help us? Can you send me a photo of yourself? You can go. - could代替can,语气更加委婉客气(不是过去时态!) Could you open the door for me, please? Could you speak more loudly? Could I help you? >💡小结: >请求别人做事情,用Could you…?比Can you…更礼貌。 · may / might >may、might都可表示许可、请求许可;也表现在/将来可能性;might是may的过去式。 (1)might表许可:语气委婉客气 >⚠️规则:might表许可多用于疑问句或间接疑问句,不用于肯定句、否定句。 >Might I have your email address? >I want to know whether I might have your email address. (2)表可能性 - may:可能性较大 - might:可能性稍小 >He may be at home.(可能) >He might be at home.(可能性稍小) >💡辨析: >✅can 多用于否定、疑问句推测; >✅may/might多用于肯定句推测。 ✍分层配套练习(基础→提升→拓展) 基础层:填空,选用can/could/may/might Ⅰ 用 can / could / may / might 填空 1. ______ you help me?(委婉请求) 2. The girl ______ dance when she was five.(过去能力) 3. It ______ rain this afternoon.(可能性较小) 4. ______ I borrow your pen?(请求许可) 5. That ______ be true.(否定推测,不可能) 提升层:句型转换(否定句、一般疑问句) Ⅱ 改为否定句 1. You can go. → ________________________ 2. He could speak French. → ________________________ Ⅲ 改为一般疑问句 1. You can order food on your phone. ________________________________________ 2. I may have your email address. ________________________________________ 拓展层:改错+语境辨析 Ⅳ 改错(划出错误,改正并说明原因) 1. He can to swim. ________________ 2. Might I can go home? ________________ 3. He might be at home, but I’m not sure.(判断正误)________ 4. Could you open the door? (判断:此句是过去时态?________) Ⅴ 单项选择 1. —______ you pass me the salt, please? —Sure. A. Could B. Can’t C. May 2. The light is off. He ______ be at home. A. can’t B. may C. mustn’t 参考答案与解析 Ⅰ 1. Could(委婉请求) 2. could(过去的能力) 3. might(可能性较小) 4. May(请求许可) 5. can’t(否定推测,不可能) Ⅱ 1. You can not (can’t) go. 2. He could not (couldn’t) speak French. Ⅲ 1. Can you order food on your phone? 2. May I have your email address? Ⅳ 1. to swim → swim;解析:情态动词can后面必须接动词原形。 2. Might I can go home → Might I go home;解析:情态动词不能叠加使用。 3. 正确;解析:might表可能性,可以用于肯定句。 4. 不是;解析:could此处表委婉请求,是现在时,不是过去。 Ⅴ 1. A;解析:Could you… 委婉请求。 2. A;解析:灯灭了,他不可能在家,can’t表否定推测。 学科网(北京)股份有限公司 $

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情态动词同步讲义2026-2027学年冀教版英语七年级上册
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情态动词同步讲义2026-2027学年冀教版英语七年级上册
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情态动词同步讲义2026-2027学年冀教版英语七年级上册
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