重难点04 情态动词 -2024年中考英语【热点·重点·难点】专练（安徽通用）

专题04 情态动词 情态动词需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。主要考查can,could,will,would,may,might,must,shall,should,need的用法；含有情态动词的疑问句的回答；不同情态动词的否定意义；情态动词表示推测的用法以及情态动词的易混知识点（can,be able to;may be,maybe;can’t,mustn’t）。综观历年中考英语情态动词的考查情况，有相当一部分考题从本质上看都是在考查情态动词在具体语境中的运用，即只要考生能弄清各个被考查情态动词的意思，就可作出正确选择。其次，根据时间确定时态，即要分清情态动词表推测时涉及的是现在情况还是过去情况。 知识点1：情态动词的基本用法 情态动词:无人称和数的变化,后跟动词原形才能作谓语。 原形,过去式 用法 含义 例句 can, could 表能力(=be able to有时态变化) 能,会 He can dance.=He is able to dance. 表请求(一般疑问句) 可以 Can you help me?=Could you give me a hand?(更委婉) 表否定推测 can’t be(不可能) The boy can’t be Tony.Tony is much taller. may, might 表可能性 可能 Tim may know the way.=Maybe Tim knows the way. 表客气请求 可以 May I come in? 表祝愿 祝 May you good luck. must 表命令/义务 必须 We must obey the school rules. 表肯定推测 一定 He must be at home because the light is on. must的一般疑问句的否定回答用needn’t 或don’t have to 没有必要 —Mom,must I write to my cousin today? —No,you needn’t/you don’t have to.You may write it on weekends. 与同义短语have to的区别: have to有时态、人称的变化(has to/had to...)must 无变化 不得不,必须 The boy had to stay at home alone yesterday. =The boy must stay at home alone yesterday. shall, should Shall I/we...表请求 ……好吗? Shall I ask you some questions? Let’s 的附加反意疑问句是shall we 好吗 Let’s go to the park,shall we? should/shouldn’t表义务 (不)应该 Students shouldn’t have long hair. will,would 表提建议 愿意 Will/Would/Could you please take out the trash? need need do(need是情态动词) 需要; 需要做…… We need buy some school things.=We need to buy some school things. need to do(need是行为动词) need doing 需要被做 The watch needs repairing.(这块手表需要被修。) had better had better (not) do =It’s (not) best to do sth. 最好(不) You had better ask your teachers for help.=It’s best to ask your teachers for help. 知识点2：情态动词知识常考要点 1.may的一般疑问句的否定回答用 can’t。 —Mom,may I play computer games now? —No,you can’t.Study must come first.(必须先学习) 2.mustn’t意为“禁止;不准”。 You mustn’t play soccer on the street.It’s so dangerous. 3.“情态动词+have done(完成时)