情态动词 课件-2024年中考英语语法专题复习

情态动词 主讲老师：Demi老师 Grammar课堂之 1.什么是情态动词？ 实义动词：比如want、like、go等 01 动词的分类，分为以下四大类： 04 情态动词：can ，should，must，may等 03 助动词：do、does、did；will、shall；have、has等 02 系动词：feel、taste、sound、look、smell （5个感官动词）等； 2.情态动词知多少？ can could may must need should 情态动词的几大特点： can could may must need should 情态动词+动词原形 情态动词否定后面直接+not 情态动词变疑问句，直接提前 情态动词无三单、无将来 注意：have to例外，用于第三人称单数时变成has to 练一练 -- people talk with friends by QQ twenty years ago? --No, but today most of us do that. A. Can; could B. Could: can C. Could; could D. Could; can't B 3.情态动词基本用法 can could VS 能力 be able to VS can的过去式 情态动词 ① I can play basketball. =I am able to play basketball. ② I can make my dream come true in the future. =I will be able to make my dream come true in the future. ③ I could play basketball when I was young. =I was able to play basketball when I was young. =can/could 一般现在时 一般过去式 一般将来时 1.表能力 练一练 1.They do well in the exam. A.can be able to B.be able to C.can able to D.are able to [题目解析]D选项 ；can与be able to不能连用A与C错误； D can could VS may VS 情态动词 2.表请求 might VS 情态动词 肯定回答 否定回答 can could may might Yes,you can. Of course. No,you can't No,you mustn't(禁止) ——Can/Could/May I leave now? ——Yes,you can/Of course. ——No,you can't/No,you mustn't 委婉程度：can——could——may——might 练一练 2-1.—Robert,could you wash the car for me? —Yes,I 　　　.I'm coming,Dad.  A.could B.couldn't C.can D.can't [题目解析]C选项;考查情态动词的用法。根据答语yes,排除B项和D项;问句Could you...?是表请求的句子,回答时不能用could或couldn’t,应用can或can’t来回答,故选C。 2-2.—Could I smoke here? —Sorry,I am afraid you　　　.Look at the sign “No smoking”!  A.couldn't B.needn't C.can't D.won't C C have to must VS “不得不/必须” 客观条件限制(被迫) don't have to “不必”=needn't “必须” 主观条件限制(主动) mustn't “禁止” You have to finish it in 2 minutes. I must study hard. You don't have to worry. You mustn't park here. 情态动词 3.表必要 练一练 3.I'm feeling much better now, so you call he doctor. A.can't B.mustn't C.don't have to D.haven't to