2023年人教版中考英语二轮专题复习课件：情态动词
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导图讲语法
情态动词：①情态动词的基本特征 ②情态动词的用法
情态动词的 基本特征
1.有词义，但不能单独作谓语，须和动词原形一起构成谓语 2.除了have to一般无人称和数的变化 3.后接动词原形
1.表示能力,意为“能,会”,可与be able to相互转化,其否定形式
情态动词的 用法
can
为can't,意为“不能,不会”,如: I can cook simple meals.
如: Could you please speak a little louder? could
3.表推测,意为“有可能,也许”(20% ~80%的可能性)，
情态ould的否定形式,意为“不能,不会”， couldn't
如: I couldn't live quietly in the country.
must/mustn't
1.表示主观意愿,意为“必须,一定要”, 如: We must take action to protect the wild animals.
情态动词的 用法
must/ mustn't
2.表示非常有把握的肯定推测,100%的可能性,意为“ 一定，肯定”, 如: She must be very tired after a long journey.
如: Your watch is broken.You had better buy a new one. 意为“不得不”,多表示客观必要， have to 如: I have to study for a math test.
随堂练习
一、完形填空微语篇 People used to think that exercise was just for players, but Jane doesn't
3.must的否定式为mustn't,意为“一定不要,禁止”， 如: You mustn't swim here.
1.表示请求、许可，意为“可以”如: May I try on this may d2.r意es为s?“有可能，也许”,用于肯定句，表示把握不大的推测
，如: He may come very soon.
should/ shouldn't
1.should意为“应该”，表示要求和命令，也可以表示 劝告或建议，其否定式为shouldn't, 如: Maybe you should join an English club.
情态动词的 用法
should/ 2.表示征询意见,常用于疑问句中， shouldn't 如: When should we begin the discussion?
2.表示拒绝对方的请求或不同意、不允许,意为“不可以”， 如:—Could I take photos here?—Sorry, I'm afraid you can't.
1.can的过去式,意为“能,会”表示过去的能力， could
如: I could swim at the age of 6.
2.在疑问句中表示委婉的请求,
3.表推测，意为“有可能，也许”，可能性低于may，语气缓和 ，委婉，如: The story might be true.(暗示多半是假的)
情态动词的 用法
need/ needn't
1.need意为“需要”，主要用于否定句和疑问句中， 如: Need I leave now ?
2.needn't为need的否定式，意为“没必要”， 如: You needn't help me, because I can do it by myself.
think so. She used to be lazy—eating too much but never exercising, and then she fell ill. She knew it 1 be caused by her unhealthy lifestyle so she decided to make a change. ( C )1. A. can B. can't C. must D. mustn't
2.表示请求允许,意为“可以”,多用于口语中，如: Can we
bring music players to school?
情态动词的 用法
can't
1.表示否定推测,语气强烈,意为“一定不,不可能”,可能性几乎 为零,如: That can't be Jane.She is having a dance class now.
After trying some sports, she thought swimming 2 be more suitable (合适的) for her. She began to do it. Now she swims three times a week. When she is exercising, she tries her best to swim as long as she 3 . What's more, she will forget all the worries and focus on exercising completely. It also gives her a chance to make more friends while she exercises.
表示询问,请求,用于疑问句中,表示客气的请求， will
如:Will you pass me the book ?
表示自愿做或主动提出做什么，也可用于表示邀请或请求 would
，如: Would you please give me a hand?
情态动词的 用法
意为“最好”，否定形式为had better not , had better
3.may用于祈使句,表示祝福和祝愿,用法和wish相似， may
如: May your dream come true!
情态动词的 用法
1.may的过去式,如:She worried that I might be angry.
2.表请求,许可,语气比may更委婉,如:Might I sit here? might
情态动词：①情态动词的基本特征 ②情态动词的用法
情态动词的 基本特征
1.有词义，但不能单独作谓语，须和动词原形一起构成谓语 2.除了have to一般无人称和数的变化 3.后接动词原形
1.表示能力,意为“能,会”,可与be able to相互转化,其否定形式
情态动词的 用法
can
为can't,意为“不能,不会”,如: I can cook simple meals.
如: Could you please speak a little louder? could
3.表推测,意为“有可能,也许”(20% ~80%的可能性)，
情态ould的否定形式,意为“不能,不会”， couldn't
如: I couldn't live quietly in the country.
must/mustn't
1.表示主观意愿,意为“必须,一定要”, 如: We must take action to protect the wild animals.
情态动词的 用法
must/ mustn't
2.表示非常有把握的肯定推测,100%的可能性,意为“ 一定，肯定”, 如: She must be very tired after a long journey.
如: Your watch is broken.You had better buy a new one. 意为“不得不”,多表示客观必要， have to 如: I have to study for a math test.
随堂练习
一、完形填空微语篇 People used to think that exercise was just for players, but Jane doesn't
3.must的否定式为mustn't,意为“一定不要,禁止”， 如: You mustn't swim here.
1.表示请求、许可，意为“可以”如: May I try on this may d2.r意es为s?“有可能，也许”,用于肯定句，表示把握不大的推测
，如: He may come very soon.
should/ shouldn't
1.should意为“应该”，表示要求和命令，也可以表示 劝告或建议，其否定式为shouldn't, 如: Maybe you should join an English club.
情态动词的 用法
should/ 2.表示征询意见,常用于疑问句中， shouldn't 如: When should we begin the discussion?
2.表示拒绝对方的请求或不同意、不允许,意为“不可以”， 如:—Could I take photos here?—Sorry, I'm afraid you can't.
1.can的过去式,意为“能,会”表示过去的能力， could
如: I could swim at the age of 6.
2.在疑问句中表示委婉的请求,
3.表推测，意为“有可能，也许”，可能性低于may，语气缓和 ，委婉，如: The story might be true.(暗示多半是假的)
情态动词的 用法
need/ needn't
1.need意为“需要”，主要用于否定句和疑问句中， 如: Need I leave now ?
2.needn't为need的否定式，意为“没必要”， 如: You needn't help me, because I can do it by myself.
think so. She used to be lazy—eating too much but never exercising, and then she fell ill. She knew it 1 be caused by her unhealthy lifestyle so she decided to make a change. ( C )1. A. can B. can't C. must D. mustn't
2.表示请求允许,意为“可以”,多用于口语中，如: Can we
bring music players to school?
情态动词的 用法
can't
1.表示否定推测,语气强烈,意为“一定不,不可能”,可能性几乎 为零,如: That can't be Jane.She is having a dance class now.
After trying some sports, she thought swimming 2 be more suitable (合适的) for her. She began to do it. Now she swims three times a week. When she is exercising, she tries her best to swim as long as she 3 . What's more, she will forget all the worries and focus on exercising completely. It also gives her a chance to make more friends while she exercises.
表示询问,请求,用于疑问句中,表示客气的请求， will
如:Will you pass me the book ?
表示自愿做或主动提出做什么，也可用于表示邀请或请求 would
，如: Would you please give me a hand?
情态动词的 用法
意为“最好”，否定形式为had better not , had better
3.may用于祈使句,表示祝福和祝愿,用法和wish相似， may
如: May your dream come true!
情态动词的 用法
1.may的过去式,如:She worried that I might be angry.
2.表请求,许可,语气比may更委婉,如:Might I sit here? might