2024届高考英语语法复习之情态动词课件

情态动词 目录 一、情态动词定义 二、情态动词基本用法 三、情态动词表推测 四、情态动词+have done 用法 情态动词的定义 Kids shouldn’t have access to violent films because they might limit the things they see. 说话人自己的态度和情绪 不能单独做谓语，后面必须跟动词原型 定义：情态动词表说话人的态度和情绪，不能单独作谓语且后面必须跟动词原型，没有人称和数的变化。 情态动词基本用法 情态动词有哪些？ must, have to can/ could, be able to shall/ should, ought to will/ would may/ might need/ dare 1 must, have to 1.In crowded places like airports and railway stations, you ______ take care of your luggage. A. can B. may C. must D. will 2.You______buy a gift, but you can if you want to. A.must B.mustn't C. have to D. don't have to 3.If you ______ smoke, please go outside. A. can B. should C. must D. may 4..The new law states that people ______ drive after drinking alcohol. A. wouldn't B. needn't C. won't D. mustn't 表示“必须”主观语气 表客观情况，没必要 表偏偏，偏要，非得 表法律明令禁止 ⚠️ATTENTION！！！ must表示“偏要” mustn’t 表示“禁止” 1 must VS have to must have to 意思 更加强调主观意愿 强调客观需要，译为“不得不” 时态 一般只表示现在 有更多的时态 否定 mustn’t表示禁止做某事 don’t have to更相当于needn’t 1.Although you ______ find bargains in London, it's not generally a cheap place to shop. A. should B. need C. must D. can 2.How ______ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may 3.I ________ thank you too much for all your help to my son while we were away from home. A. won’t B. can C. can’t D. will 4.No one ______ be more generous；he has a heart of gold. A. could B. must C. dare D. need 表可以，客观条件允许做某事 表“惊讶”，常用于疑问句，否定句 习惯用法，和too搭配表再怎么样也不过分，非常 否定式和比较级连用，表达最高级意义 can/ could用法总结 2 有能力做某事； 表示客观可能性； can 与how在疑问句中，表示惊讶、怀疑、猜测； 4. 表示有礼貌地请求或建议,could表示现在，用以婉转地提出请求、想法、建议等,回答时用can 5. 用于一些特殊句型中： cannot...too... ”再怎么也不过分” cannot...more ”不能更好了” can‘t help doing ”情不自禁做某事” could + 否定词 + 比较级=最高级 2 can/could can/could be able to 现在 can am/is/are able to 过去 could was/were able to 将来 / will be able to ⚠️ATTENTION！！！ I can can a can. 情态动词 实义动词 3 may/ might 1.— ______ I take the boo