(完整版)人教版高中英语必修三情态动词基本用法
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be very cold. • He’s good-tempered. However, he can be
hard to deal with when offended. • Even an experienced teacher can make
misBaidu Nhomakorabeaakes.
• 3)表示许可/允诺 • ---Can/Could Tom use the car? • ---Yes , he can. • You can have my seat. I am going now.
didn’t you? • 3) may用于祈使句表示祝愿 • May you succeed! • May you return in safe!
3. must
• 1. 必须 • Must I say “sorry”? • Yes, you must. / No, you needn’t. • You must see a doctor. • 2. 猜测 “肯定,准是” • She must be watching TV now. • There must be some mistake. • It must have rained last night. The ground is so
How many modal verbs can you remember?
will/would
can/could
have/had to
may/might
used to modal verbs
shall/should
ought to
dare
must need
1. can/could
• 1)表示能力 • He can play table tennis quite well. • 2) 表示事物一时的特征, 理论上的可能性 • It’s always warm here, but sometimes it can
种形式。
• He had to look after his sister yesterday. • 3） 在否定结构中： don‘t have to 表示“不必”
mustn’t 表示“禁止”
• You don‘t have to tell him about it.
4.Shall的用法
(1). Shall 常用于第一人称表示简单的将来 When shall well meet again? I shall have finished my homework by Friday. (2) shall用于第二，三人称表示： a. 允诺或强烈的意志 It shall be done as you wish. You shall get a bike as your birthday present. B. 肯定会发生的事情 That day shall come. C.命令或必须执行之事． This law shall have effect in Scotland.
• My brother was very ill, so I had to call the doctor in the middle of the night.
• He said that they must work hard. • 2) have to有人称、数、时态的变化，而must只有一
What are 情态动词(modal verbs)?
情态动词的特点 • 情态动词有一定的意义 • 无人称和数的变化 • 通常不带to ,后接动词原形 • 表示说话人的语气或情绪
情态动词备考方向:
• 1. 各情态动词的基本用法; • 2. 易混淆情态动词的辨析; • 3.情态动词在特定语境中的用法 • 4.虚拟语气中情态动词的用法.
2. may/might
• 1)表示请求\许可 • ---May/Might I come in? • ---Yes, you may. • 2)表示可能性的推测 • Her appearance has changed so much that you
may well not recognize her. • It’s so late. I thing he may/might have gone to bed. • You might have given him more help, but why
5.Should 的用法
• （１） 用于表示义务或责任 You shouldn’t drink and drive. Visitors should inform the receptionist of their
• 4) 表示推测 • 1) ---Someone is knocking at the door. Who
can it be? Can it be Scarlet? • ---No, it can’t be her. She called from
Tokyo just now. • 2) He can not have forgotten it. • 3) The accident could have been avoided.
wet. • 3. “偏要,硬要” • If you must smoke, please go out. • 4. 否定,表示 “禁止” • You mustn’t play with fire. You may hurt yourself.
must对比have to
• 1) 两词都是‘必须’的意思，have to 表示客观的需 要， must 表示说话人主观上的看法，既主观上的必 要。
(3)用于疑问句或表示提议的句子，请 求听者决定之．
1)---Shall we go together? ---Yes, let’s. 2)---Shall I get you a chair? ---Yes, please. 3)---Shall the visitor come in now? ---I’d rather he came in later.
hard to deal with when offended. • Even an experienced teacher can make
misBaidu Nhomakorabeaakes.
• 3)表示许可/允诺 • ---Can/Could Tom use the car? • ---Yes , he can. • You can have my seat. I am going now.
didn’t you? • 3) may用于祈使句表示祝愿 • May you succeed! • May you return in safe!
3. must
• 1. 必须 • Must I say “sorry”? • Yes, you must. / No, you needn’t. • You must see a doctor. • 2. 猜测 “肯定,准是” • She must be watching TV now. • There must be some mistake. • It must have rained last night. The ground is so
How many modal verbs can you remember?
will/would
can/could
have/had to
may/might
used to modal verbs
shall/should
ought to
dare
must need
1. can/could
• 1)表示能力 • He can play table tennis quite well. • 2) 表示事物一时的特征, 理论上的可能性 • It’s always warm here, but sometimes it can
种形式。
• He had to look after his sister yesterday. • 3） 在否定结构中： don‘t have to 表示“不必”
mustn’t 表示“禁止”
• You don‘t have to tell him about it.
4.Shall的用法
(1). Shall 常用于第一人称表示简单的将来 When shall well meet again? I shall have finished my homework by Friday. (2) shall用于第二，三人称表示： a. 允诺或强烈的意志 It shall be done as you wish. You shall get a bike as your birthday present. B. 肯定会发生的事情 That day shall come. C.命令或必须执行之事． This law shall have effect in Scotland.
• My brother was very ill, so I had to call the doctor in the middle of the night.
• He said that they must work hard. • 2) have to有人称、数、时态的变化，而must只有一
What are 情态动词(modal verbs)?
情态动词的特点 • 情态动词有一定的意义 • 无人称和数的变化 • 通常不带to ,后接动词原形 • 表示说话人的语气或情绪
情态动词备考方向:
• 1. 各情态动词的基本用法; • 2. 易混淆情态动词的辨析; • 3.情态动词在特定语境中的用法 • 4.虚拟语气中情态动词的用法.
2. may/might
• 1)表示请求\许可 • ---May/Might I come in? • ---Yes, you may. • 2)表示可能性的推测 • Her appearance has changed so much that you
may well not recognize her. • It’s so late. I thing he may/might have gone to bed. • You might have given him more help, but why
5.Should 的用法
• （１） 用于表示义务或责任 You shouldn’t drink and drive. Visitors should inform the receptionist of their
• 4) 表示推测 • 1) ---Someone is knocking at the door. Who
can it be? Can it be Scarlet? • ---No, it can’t be her. She called from
Tokyo just now. • 2) He can not have forgotten it. • 3) The accident could have been avoided.
wet. • 3. “偏要,硬要” • If you must smoke, please go out. • 4. 否定,表示 “禁止” • You mustn’t play with fire. You may hurt yourself.
must对比have to
• 1) 两词都是‘必须’的意思，have to 表示客观的需 要， must 表示说话人主观上的看法，既主观上的必 要。
(3)用于疑问句或表示提议的句子，请 求听者决定之．
1)---Shall we go together? ---Yes, let’s. 2)---Shall I get you a chair? ---Yes, please. 3)---Shall the visitor come in now? ---I’d rather he came in later.