高中英语2025届高考语法复习情态动词与虚拟语气知识讲解

高中英语2025届高考语法复习情态动词与虚拟语气知识讲解

高中英语2025届高考语法复习情态动词与虚拟语气知识讲解，以下展示关于高中英语2025届高考语法复习情态动词与虚拟语气知识讲解的相关内容节选，更多内容请多关注我们网站

1、高考英语语法复习情态动词与虚拟语气知识讲解一、情态动词1.表示能力情态动词用法例句can表示现在的能力I am starving to death. I can eat two bowls of rice now.could表示过去的能力He could hardly support his family before he found the new job.注意：（1）表示能力时，can只用于一般现在时，could仅用于一般过去时；而be able to则有更多的时态，如将来时、完成时等。I havent been able to read that report yet.He will

2、be able to skate as well as you.（2）Was/were able to表示能力时，侧重经过努力而成功做到某事；而could仅表示具备能力，不说明是否实施了能力。He studied hard and was able to pass the exam.（3）用在其他动词，如might,may,would,want,hope等之后表示能力只能用be able to。He might be able to fix your car.2.表示推测情态动词用法例句May/might表示把握性不大的推测，一般不用于疑问句中；might表示的可能性比may小Anna may

3、 know my phone number.He might be a few minutes late.can表示客观的可能性时用于否定句和疑问句中The moon cannot always be at the full.Where can he be?表示理论上的可能性或一时的情况时用于肯定句中Even experienced teachers can make mistakes.could表示客观的可能性，用于肯定句、否定句和疑问句均可He was not at home last night. He could have gone to the movies.must表示有根据、有把

4、握的推测，只能用于肯定句He must be ill. His face is pale.Should/ought to表示有较大可能实现的猜测、推论，通常译为“按理说应该”The report was written after a careful investigation, so it should be reliable.Will/wouldwill用于谈论现在Ask him. He will know.Would可用于谈论过去，也可用于谈论现在，表示比较委婉的语气The person you mentioned would be her father.3.表示请求、允许情态动词用法例

5、句Can/could多用于口语中，表示委婉的请求或陈述看法时，口语中多用could，但回答时仍然用canYou can go out to play after you finish your homework.-Could I see your driving license?-Of course you can.May/might表示请求允许时，might比may语气更加委婉一些，是比较正式的用法May I leave this with you?I wonder if I might speak to your son.表示给予允许时通常用may不用mightYou may not ta

6、ke photos in the museum.Will/would表示请求许可和提出请求时，主要用于第二人称为主语的疑问句中，will和would均可用，would此时并不表示过去，而表示委婉语气Will you please post the letter for me?Would you tell me how to get to the shopping mall?shall表示征求对方意见时，主要用于以第一、三人称为主语的疑问句中Shall I get a chair for you?Shall the boy come at once?4.表示责任或义务情态动词用法例句Should/ought to用来表示现在或将来的责任或义务，意为“应该，应当”，相当于be s