情态动词公开课[优质PPT]
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情态动词讲解精ppt课件
例句
will/would
详细描述：will 表示现在的意愿或 预测，would 表示过去的或虚拟 的意愿或预测。
1. I will help you with your project.（我会帮助你完成你的项 目。）
总结词：表示意愿或预测
例句
2. They would have gone to the party if they had known about it earlier.（如果他们早点 知道，他们就会去参加聚会。）
表示意愿
情态动词+动词原形，如 would like to go，表示 某人想要去。
形式变化
基本形式
情态动词的基本形式包括 现在时、过去时和将来时 。
过去式
情态动词的过去式通常是 在基本形式后面加-d或ed，如could have done 、should have done等。
将来时
情态动词的将来时通常是 在基本形式后面加-will或shall，如will be able to 、shall have to等。
may与might的区别与联系
总结词
may表示现在的许可或可能性；might表示过去的可能性或许可。
详细描述
may用于肯定句中，表示许可或可能性，例如“You may use this room.”（你可以使用这个房间。 ）“The book may be in the library.”（这本书可能在图书馆里。）might表示过去的可能性，常 用于过去时态的句子中，例如“He might come tomorrow.”（他明天可能来。）
未必、很难说
She might not agree with us.
表示虚拟语气
will/would
详细描述：will 表示现在的意愿或 预测，would 表示过去的或虚拟 的意愿或预测。
1. I will help you with your project.（我会帮助你完成你的项 目。）
总结词：表示意愿或预测
例句
2. They would have gone to the party if they had known about it earlier.（如果他们早点 知道，他们就会去参加聚会。）
表示意愿
情态动词+动词原形，如 would like to go，表示 某人想要去。
形式变化
基本形式
情态动词的基本形式包括 现在时、过去时和将来时 。
过去式
情态动词的过去式通常是 在基本形式后面加-d或ed，如could have done 、should have done等。
将来时
情态动词的将来时通常是 在基本形式后面加-will或shall，如will be able to 、shall have to等。
may与might的区别与联系
总结词
may表示现在的许可或可能性；might表示过去的可能性或许可。
详细描述
may用于肯定句中，表示许可或可能性，例如“You may use this room.”（你可以使用这个房间。 ）“The book may be in the library.”（这本书可能在图书馆里。）might表示过去的可能性，常 用于过去时态的句子中，例如“He might come tomorrow.”（他明天可能来。）
未必、很难说
She might not agree with us.
表示虚拟语气
《情态动词》PPT课件
work our this problem. 如果你睡个好觉，那么你就能做出这个题目。 3、表示过去的能力： could表示过去一般的能力， 但不表示做或未做某事；
was/ were able to表示过去有能力并且成功地做了某事， 相当于managed to do something/ succeeded in doing something；
• Mr. Bush is on time for everything. How can it be that he was late for the opening ceremony? (表疑惑、惊讶)
表示请求、允许、允诺
1. 当对方是决策者时，你代表你（们）自己（I， We），或代表第三者（he,she,they）向对方 （you）请示或提出建议时用：
Revision:Modal verbs
情态动词专项复习
How many modal verbs
do you remember?
(情态动词)
一，常见的情态动词有：can, could, may, might ,must, shall, should, will, would, need, have to等
4、具有情态动词的某些特征的有：have(had) to, used to.
情态动词的特征
1、有一定的词义，但不能单独作谓语，它们要和行 为动词或连系动词连用，构成谓语。
2、适用于主语的各种人称和数 have to例外，主语 是第三人称单数时，要用has to）。如：
We/ He must work hard. 我们/他一定要努力工作。 I have to walk home. 我得步行回家。 He has to walk home. 他得步行回家。
was/ were able to表示过去有能力并且成功地做了某事， 相当于managed to do something/ succeeded in doing something；
• Mr. Bush is on time for everything. How can it be that he was late for the opening ceremony? (表疑惑、惊讶)
表示请求、允许、允诺
1. 当对方是决策者时，你代表你（们）自己（I， We），或代表第三者（he,she,they）向对方 （you）请示或提出建议时用：
Revision:Modal verbs
情态动词专项复习
How many modal verbs
do you remember?
(情态动词)
一，常见的情态动词有：can, could, may, might ,must, shall, should, will, would, need, have to等
4、具有情态动词的某些特征的有：have(had) to, used to.
情态动词的特征
1、有一定的词义，但不能单独作谓语，它们要和行 为动词或连系动词连用，构成谓语。
2、适用于主语的各种人称和数 have to例外，主语 是第三人称单数时，要用has to）。如：
We/ He must work hard. 我们/他一定要努力工作。 I have to walk home. 我得步行回家。 He has to walk home. 他得步行回家。
情态动词专题知识公开课获奖课件
第7页
②在予以他人许可时，常用can，但有时也用may。不能用 might。
－May I play basketball this afternoon? 今天下午我可以打篮球吗？ －Yes，you may. 行，可以。
第8页
(2)表达也许性 may和might表达也许性时，可以对目前、过去或未来进行 推测。 Peter may e with us tonight，but he isn't sure yet. 彼得今晚也许和我们一起来，但他还没确定。 He might be studying in the classroom. 他也许正在教室里学习。
用于必定句，表示对
taken the other road.It might have
过去没有做某事遗憾，意思 been quicker.可能我们本应走另一
should/ou 为“原来能够……(但实际 条路，那样可能更加快些。
第17页
(3)用于法律、公约、约定等正式条文，重要用于第三人称。 Students shall remain in their seats until all the papers have been collected. 试卷所有收回后学生方可离开座位。
第18页
5. will和would使用措施 作情态动词will，would与作助动词will，would多种形式相 似。 (1)表达自愿做或积极提出做什么，如意志、愿望或决心等。 would用于过去状况。
第14页
The TV set is broken. I have to buy a new one. 电视机坏了。我不得不再买台新。 The students will have to know how to use the puters. 学生将必须理解怎样使用电脑。 He had to go，because his mother was ill. 他不得不离开，由于他母亲病了。
②在予以他人许可时，常用can，但有时也用may。不能用 might。
－May I play basketball this afternoon? 今天下午我可以打篮球吗？ －Yes，you may. 行，可以。
第8页
(2)表达也许性 may和might表达也许性时，可以对目前、过去或未来进行 推测。 Peter may e with us tonight，but he isn't sure yet. 彼得今晚也许和我们一起来，但他还没确定。 He might be studying in the classroom. 他也许正在教室里学习。
用于必定句，表示对
taken the other road.It might have
过去没有做某事遗憾，意思 been quicker.可能我们本应走另一
should/ou 为“原来能够……(但实际 条路，那样可能更加快些。
第17页
(3)用于法律、公约、约定等正式条文，重要用于第三人称。 Students shall remain in their seats until all the papers have been collected. 试卷所有收回后学生方可离开座位。
第18页
5. will和would使用措施 作情态动词will，would与作助动词will，would多种形式相 似。 (1)表达自愿做或积极提出做什么，如意志、愿望或决心等。 would用于过去状况。
第14页
The TV set is broken. I have to buy a new one. 电视机坏了。我不得不再买台新。 The students will have to know how to use the puters. 学生将必须理解怎样使用电脑。 He had to go，because his mother was ill. 他不得不离开，由于他母亲病了。
情态动词ppt课件市公开课获奖课件省名师示范课获奖课件
I don’t like this TV set. We must buy a new one. There was no more bus. They had to walk home.
• (2) must旳否定形式mustn’t表达禁止， 意思是“不能，不许”。例如：
• (2023上海春)When I was young, I was told that I ______ play with matches
B. it is used to
• C. it was used to
D. it used to be
• 【答案】A D
（三）情态动词+have done
• must表达对某人某事旳猜测;对过去发生旳 事情作肯定判断用must have done
There is nobody here. They must have all gone home.
• can用于肯定句中表达一种理论上旳可能性， 并不牵涉是否真旳会发生；
• The road can be blocked. • could用于肯定句中，语气比can更弱。
• (4)may (not) / might (not)体现一种不太把 握旳推测，意为“或许，可能”；might旳 语气比may较婉转.
• A. might B. should C. could D. would
• 【答案】D
• (2) would表达过去倾向性或习惯性旳动作。 used to 也有这一使用方法，但used to即 可用来体现过去旳习惯性旳动作，也可用 来表达过去旳状态。例如：
• ① (NMET1996上海)When he was there, he ___ go to that coffee shop at the corner after work every day.
• (2) must旳否定形式mustn’t表达禁止， 意思是“不能，不许”。例如：
• (2023上海春)When I was young, I was told that I ______ play with matches
B. it is used to
• C. it was used to
D. it used to be
• 【答案】A D
（三）情态动词+have done
• must表达对某人某事旳猜测;对过去发生旳 事情作肯定判断用must have done
There is nobody here. They must have all gone home.
• can用于肯定句中表达一种理论上旳可能性， 并不牵涉是否真旳会发生；
• The road can be blocked. • could用于肯定句中，语气比can更弱。
• (4)may (not) / might (not)体现一种不太把 握旳推测，意为“或许，可能”；might旳 语气比may较婉转.
• A. might B. should C. could D. would
• 【答案】D
• (2) would表达过去倾向性或习惯性旳动作。 used to 也有这一使用方法，但used to即 可用来体现过去旳习惯性旳动作，也可用 来表达过去旳状态。例如：
• ① (NMET1996上海)When he was there, he ___ go to that coffee shop at the corner after work every day.
我的公开课情态动词课件
2. —What’s the name of the book? —Khulaifi. _________ I spell it for you? A. Shall B. Would C. Can D. Might
情态动词表必要性
• must • need
高考真题演练
must 表“必须”
mustn’t 禁止
A. might B. must C. would D. can
3. What do you mean, there are only ten tickets? There ______ be twelve.
A. should B. would C. will D. shall
4. It is usually warm in my hometown in March, but it _____ be rather cold sometimes.
1. 不必须
don’t have to needn’t do
don’t need to
2. must还可表示“偏偏、偏要” e.g. Must you make so much noise?
• You ___ buy a gift, but you can if you want to.
• must
1. 常用于否定句或疑问句。 e.g. You can’t be hungry already — you had
lunch only two hours ago!
2. can用于肯定句中表示理论上的可能性，并不 牵涉是否真的会发生
e.g. You can hurt yourself if you play in the street.
A. must B. can C. should D. would
《英语情态动词》PPT课件
(12) You can't be too careful while driving. 开车时越小心越好。
【结论6】 cannot ... too/enough表示“无论……也不过 分”；“越……越好”。用来加强语气。 (13) I couldn't but choose to wait.
【结论7】cannot but do sth. 不得不；只好 (14) They were able to put out the fire without any help from the firefighters.
(8) Can it be true? (9) You can't be serious! (10) Oh, dear, what on earth can this mean? (11) How could you do such a silly thing? 你怎么能做那样的蠢事呢？ 【结论5】表示惊讶、怀疑、不相信的态度，常用在否 定句、疑问句和感叹句中。
(3)表示“偏执”，“固执” “偏要、硬要” 。 — How old are you, madam? — If you must know, I'm twice my son's age. Don't interrupt me, John. Must you force me to tell you the truth at the moment?
A computer can’t think for itself; it must be told what to do.（一般能力） 句意为：对绝大多数受到威胁时而不能起身逃跑的植物 He is a native speaker of English, so he can of course 来说，最大的问题是动物喜欢吃它们。情态动词can 可 speak English quite well.（一般能力） 表示对能力的否定。 I以表示人的能力和物的性能，故选 am starving to death. I can eat twoB bowls of rice now. （现在的能力） The biggest problem for most plants, which ___just get up and run away when threatened, is that animals like to eat them.(07湖南) A. shan’t B. B can’t C. needn’t D. mustn’t
情态动词的用法PPT课件
“雪亮工程"是以区（县）、乡（镇） 、村（ 社区） 三级综 治中心 为指挥 平台、 以综治 信息化 为支撑 、以网 格化管 理为基 础、以 公共安 全视频 监控联 网应用 为重点 的“群 众性治 安防控 工程” 。
Exercises:
My brother was very ill, so I ( had to) call the doctor in the middle of the night.
“雪亮工程"是以区（县）、乡（镇） 、村（ 社区） 三级综 治中心 为指挥 平台、 以综治 信息化 为支撑 、以网 格化管 理为基 础、以 公共安 全视频 监控联 网应用 为重点 的“群 众性治 安防控 工程” 。
some differences between China and the US
China
3 Underline the correct words.
注意： might为may的过去式，但也可以代替may， 语气较为婉转客气或更加不肯定。
“雪亮工程"是以区（县）、乡（镇） 、村（ 社区） 三级综 治中心 为指挥 平台、 以综治 信息化 为支撑 、以网 格化管 理为基 础、以 公共安 全视频 监控联 网应用 为重点 的“群 众性治 安防控 工程” 。
— For your health, I’m afraid you ______. (2011贵州安顺)
A. may B. can C. have to D. need
“雪亮工程"是以区（县）、乡（镇） 、村（ 社区） 三级综 治中心 为指挥 平台、 以综治 信息化 为支撑 、以网 格化管 理为基 础、以 公共安 全视频 监控联 网应用 为重点 的“群 众性治 安防控 工程” 。
初中英语-情态动词-课件(共31张PPT)
二、情态动词的用法 4.dare和need
need “需要” dare“敢” 可作情态动词也可作实义动词
• (2)当实义动词使用时，有人称和时态的变化 • e.g.You don't need to do it yourself. • He did not dare(to) look up.
• ——Can you drive a car at present? • ——I_____ do so in the busy street.
• A.may not C.daren't
B.don't dare D.needn't
二、情态动词的用法 ed to和had better
• (1)used to表示过去的习惯动作或状态，现 已不存在。
• e.g.There used to be our playground.
二、情态动词的用法 ed to和had better
time. • I'll not be able to come this afternoon.
二、情态动词的用法
• (2)表客观可能性，在疑问句中表示请求或许可 • e.g.Man can not live without air. • Can I use your pen?
• *could是can的过去时，主要用于疑问句，表示语气委婉。 • 肯定回答用 • 否定回答可用
C.should tell
D.should have told
二、情态动词的用法 7.will和would
(1)表意愿，用于各种人称的陈述句。
• e.g.I will do anything for you. • If you will read the book,I'll lend it to you.
情态动词 专题课件(共28张PPT)
➢ 5. (may/can) ____c_a_n_____you swim? 表示能力
➢ 6. Listen, please. You (may not/might not)
____m__a_y__n_o_t______ speak during this exam.
表示不允许
may, might, can, could
may, might, can, could
表示猜测
➢ 1. They (can/might) ____m_i_g_h_t___be away for the
weekend but I’m not sure.
表示许可
➢ 2. You (may/might) ___m__a_y____leave now if you
can and could
➢So he can carry heavy books. ➢ability ➢He couldn't open the door by himself. ➢ability ➢Could you open the door, please? ➢request
can and could
表示猜测(不可能)
➢7. They (can not/may not) ___c_a_n_n_o_t_______ still be out, the light is on in the house.
➢8. You (couldn’t/might not) 表示许可
____c_o_u_ld_n_’_t_______ smoke on the bus.
➢9. With luck, tomorrow (can/could) ___c_o_u_ld____be a cooler day. 表示猜测
高中英语语法情态动词(28张PPT)-经典通用课件资料
2021/10/10
19
4. Tom ought not to ___ me your secret,
but he meant no harm.
A. have told
B. tell
C. be telling
D. having told
答案A 由于后句为过去时，告诉秘密的动作又发生在其前因，此地应用过去完成时，但它在情态动词 ought to 后，所以用have。
Must I go there in person? 我必须亲自去吗？ We must always follow the Party.我们要永远跟着党走。 ②表示“必然”
All men must die.人总是要死的。 ③表示推测，“准是”、“一定”，否定形式为can’t
She must be at home now.她现在准在家。
－ May I come in? －Might I go to the hospital to see my father? ②否定形式为may not, 但表示“不可以”或“禁止”时用must not (mustn’t). e.g.－Ｍay I watch TV now?我现在可以看电视吗？ －Ｎo, you mustn’t. 不，你不可以看。 ③ may, might还可以表示推测,但might可能性比may 小。 e.g. There may be a few copies left in the bookstore. 书店里可能还有几本书。 They might have been killed by radiation. ④may 放在句首, 表示祝愿。 e.g. May God bless you!
e.g. You don’t have to tell him about it. 你没必要把此事告诉他。
情态动词公开课PPT课件
It’s too hot to take
exercise in the
afternoon.
Shall we do the training in the morning?
第22页/共47页
shall: 1.Shall用于第一、第三人称疑问
句中，表示说话人征求对方的意 见、向对方请示或提供帮助 。
1.Shall we begin our lesson?
How delicious
!!!
You should not/ought not to
eat so much before running.
第31页/共47页
should:
1.Should表示劝告、建议、命令， 其同义词是ought to；在疑问句中， 通常用should代替ought…to。
Should I open the window? W ot我hee们srh.应ou当ld要le相ar互n 学fr习om。each
第20页/共47页
5.Making requests (提出要求):
informal
formal
will
can
could
would
I don’t know how to use this equipment!
Can you help me with my training?
第21页/共47页
6.Making suggestions (提出建议):
/No, you can’t/mustn’t.
第19页/共47页
may/might:
2.用于祈使句中表示祝愿。 May you be happy all your life.
Ma祝y你yo成u 功su！cceed. 3.表示推测、可能（只用于肯定句， 疑问句则要用can或could）。
exercise in the
afternoon.
Shall we do the training in the morning?
第22页/共47页
shall: 1.Shall用于第一、第三人称疑问
句中，表示说话人征求对方的意 见、向对方请示或提供帮助 。
1.Shall we begin our lesson?
How delicious
!!!
You should not/ought not to
eat so much before running.
第31页/共47页
should:
1.Should表示劝告、建议、命令， 其同义词是ought to；在疑问句中， 通常用should代替ought…to。
Should I open the window? W ot我hee们srh.应ou当ld要le相ar互n 学fr习om。each
第20页/共47页
5.Making requests (提出要求):
informal
formal
will
can
could
would
I don’t know how to use this equipment!
Can you help me with my training?
第21页/共47页
6.Making suggestions (提出建议):
/No, you can’t/mustn’t.
第19页/共47页
may/might:
2.用于祈使句中表示祝愿。 May you be happy all your life.
Ma祝y你yo成u 功su！cceed. 3.表示推测、可能（只用于肯定句， 疑问句则要用can或could）。
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more spare time to take exercise. Rose—Sure. By the way, who is your favorite sports star?
Jack—Liu Xiang, I should say.
Rose—Tell me something about him.
Rose—Really? If so, I don’t have to stay up late to do so much homework and my mom may allow me
to play computer games.
Jack—The best thing I think is that I can have
Jack—Well, maybe I can show you some photos.
一. We use modal verbs to talk about:
1. Ability （能力） 2. Obligation （义务） 3. Certainty（可能性）
4. Permission （允许）
Jack—I have good news for you! Rose—What? Jack—The educational department has carried out rules to ban students from having extra lessons during the vacation.
can/could:
2.在疑问句中，用could可表示请 求，语气较委婉。
He asks if he c_o_u_l_d smoke here. — C_o_u_ld_I have the television on?
— Yes, you _c_an_/_m_a.y / No, you _ca_n_’t_/_I’m afraid not
hard to win the gold medal.
advisability
necessity
ought to/should
have to
must
Your mother brings you up and takes good care of you, so when she is old, you ___ look after her in return.
very uncertain
almost certain
might may could (can) should ought to will must
1.He _____ be at home.
A.may
B.might C.must
2.He _____ be at home, for he
just called me from his home 15
can/could:
3.表示惊异、怀疑、不相信的态度。（主 要用在否定句、疑问句或惊叹句中）
Can this be true?
He’s such a nice person that
he _c_a_n_’_t_ commit the crime.
你Ho怎w么ca会n 如yo此u b地e粗so心c！areless!
can/be able to区别:
1.A big fire broke out in ABC hotel yesterday. Luckily, everyone __w_a_s_a_bl_e_t_o_ run out of the building.
2. She _c_a_n__ speak both English and French.
can/could: 4. can never/can’t……too表示 “无论怎样…也不过分”，“越…越 好” 。
你过Ywoh马uil路eca的cnr时’ots候bsie再ngt小ot心ohe也car不roe为afdu过.l 。
can/be able to区别:
Edison always wondered why hens could hatch (孵) chickens
hurdle race within 13 seconds.
can/could:
1. can 一般表示与生俱来的能力或 者一种客观可能性,还可以表示请 求和允许 。
Man can not live without air.
Learning English _c_a_n__ be difficult. __C_a_n___ I use your bike?
while he was not able to.
Question: Are the two modal verbs interchangeable (互换) ? If not, why?
can表示与生俱来的能力或一种客观可能，而 be able to更加强调通过后天的学习和努力获 得的能力，或者在某个客观的场合和背景下， 能做到的事情。
2.Obligation (义务):
I’m so tired! I have to do the training for at least 10 hours a
day!
Although Liu Xiang is so gifted in hurdle race…
…yet he must work
A.can B.may C.have to D.must
3.Certainty (可能性) :
Although the chance of winning a
medal is small, I’ll try my best!
Shi Dongpeng might win a medal
at the Olympic Games.
二.We also use modal verbs to:
5. Making requests（提出请求） 6. Making suggestions（提出建
议）
7. Making offers（提供帮助） 8. Givbility (能力):
Liu Xiang can run the 110m
Jack—Liu Xiang, I should say.
Rose—Tell me something about him.
Rose—Really? If so, I don’t have to stay up late to do so much homework and my mom may allow me
to play computer games.
Jack—The best thing I think is that I can have
Jack—Well, maybe I can show you some photos.
一. We use modal verbs to talk about:
1. Ability （能力） 2. Obligation （义务） 3. Certainty（可能性）
4. Permission （允许）
Jack—I have good news for you! Rose—What? Jack—The educational department has carried out rules to ban students from having extra lessons during the vacation.
can/could:
2.在疑问句中，用could可表示请 求，语气较委婉。
He asks if he c_o_u_l_d smoke here. — C_o_u_ld_I have the television on?
— Yes, you _c_an_/_m_a.y / No, you _ca_n_’t_/_I’m afraid not
hard to win the gold medal.
advisability
necessity
ought to/should
have to
must
Your mother brings you up and takes good care of you, so when she is old, you ___ look after her in return.
very uncertain
almost certain
might may could (can) should ought to will must
1.He _____ be at home.
A.may
B.might C.must
2.He _____ be at home, for he
just called me from his home 15
can/could:
3.表示惊异、怀疑、不相信的态度。（主 要用在否定句、疑问句或惊叹句中）
Can this be true?
He’s such a nice person that
he _c_a_n_’_t_ commit the crime.
你Ho怎w么ca会n 如yo此u b地e粗so心c！areless!
can/be able to区别:
1.A big fire broke out in ABC hotel yesterday. Luckily, everyone __w_a_s_a_bl_e_t_o_ run out of the building.
2. She _c_a_n__ speak both English and French.
can/could: 4. can never/can’t……too表示 “无论怎样…也不过分”，“越…越 好” 。
你过Ywoh马uil路eca的cnr时’ots候bsie再ngt小ot心ohe也car不roe为afdu过.l 。
can/be able to区别:
Edison always wondered why hens could hatch (孵) chickens
hurdle race within 13 seconds.
can/could:
1. can 一般表示与生俱来的能力或 者一种客观可能性,还可以表示请 求和允许 。
Man can not live without air.
Learning English _c_a_n__ be difficult. __C_a_n___ I use your bike?
while he was not able to.
Question: Are the two modal verbs interchangeable (互换) ? If not, why?
can表示与生俱来的能力或一种客观可能，而 be able to更加强调通过后天的学习和努力获 得的能力，或者在某个客观的场合和背景下， 能做到的事情。
2.Obligation (义务):
I’m so tired! I have to do the training for at least 10 hours a
day!
Although Liu Xiang is so gifted in hurdle race…
…yet he must work
A.can B.may C.have to D.must
3.Certainty (可能性) :
Although the chance of winning a
medal is small, I’ll try my best!
Shi Dongpeng might win a medal
at the Olympic Games.
二.We also use modal verbs to:
5. Making requests（提出请求） 6. Making suggestions（提出建
议）
7. Making offers（提供帮助） 8. Givbility (能力):
Liu Xiang can run the 110m