初中情态动词讲解PPT
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情态动词(20张PPT)初中英语专项复习课件
看法。
(1)只作情态动词:must;can/could;may/might;ought to
(2)既可作情态动词又可作实义动词:need,dare
((34))既 具可 有作 情情 态态 动动词词某又些可特作征稿稿定助:定hPa动PPvTP,e词T/海h:量asd素ha材tlo持l;/s续hha更odublde;twteirll/would
【知识拓展】
1. must的一般疑问句,肯定回答为Yes, ...must.;否定回答为No, ...needn’t./No, ...don’t have
to.—Must I clean the classroom now? 我必须现在打扫教室吗?
—Yes, you must. 是的,你必须。/No, you don’t have to. /No, you needn’t. 不,你不必。
He promised he would never smoke again. 他承诺他再也不吸烟了。
Their English teacher would tell them stories in
表示过去反复发生的动 English after class.
作或某种倾向
他们的英语老师总是在课后用英语给他们讲故事
新,上千款模板选择总有一
款适合你
知识点二:情态动词的特点
情态动词的特点: (1)情态动词无人称和数的变化(have to除外); (2)情态动词后接动词原形; (3)情态动词的否定式是在其后加not; have to除外 (4)具有助动词的作用,可用来构成否定句、疑问句及用于简明答语; (5)个别情态动词有现在式和稿过定去PP式T两种形式,过去式用来表达更加客气、委 婉的语气,时态性不强,可稿用定于PPT过,海去量、素材现持在续更或将来。
(1)只作情态动词:must;can/could;may/might;ought to
(2)既可作情态动词又可作实义动词:need,dare
((34))既 具可 有作 情情 态态 动动词词某又些可特作征稿稿定助:定hPa动PPvTP,e词T/海h:量asd素ha材tlo持l;/s续hha更odublde;twteirll/would
【知识拓展】
1. must的一般疑问句,肯定回答为Yes, ...must.;否定回答为No, ...needn’t./No, ...don’t have
to.—Must I clean the classroom now? 我必须现在打扫教室吗?
—Yes, you must. 是的,你必须。/No, you don’t have to. /No, you needn’t. 不,你不必。
He promised he would never smoke again. 他承诺他再也不吸烟了。
Their English teacher would tell them stories in
表示过去反复发生的动 English after class.
作或某种倾向
他们的英语老师总是在课后用英语给他们讲故事
新,上千款模板选择总有一
款适合你
知识点二:情态动词的特点
情态动词的特点: (1)情态动词无人称和数的变化(have to除外); (2)情态动词后接动词原形; (3)情态动词的否定式是在其后加not; have to除外 (4)具有助动词的作用,可用来构成否定句、疑问句及用于简明答语; (5)个别情态动词有现在式和稿过定去PP式T两种形式,过去式用来表达更加客气、委 婉的语气,时态性不强,可稿用定于PPT过,海去量、素材现持在续更或将来。
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(17张PPT)初中英语专项复习课件
情态动词表推测也是每年中考的重点,以考查can’t 和must为主,主要在单项选择中考查不同情态动词的辨 析。考生在解答此类试题时,可以从以下几方面着手: ①表示否定的推测:一是断然的否定,此类题一般是考 查情态动词表推测的用法,语境会对所填空给出解释, 据 此 可 以 判 断 是 非 常 肯 定 的 否 定 , 此 时 最 好 用 cannot /can’t;二是表示不能十分肯定或拿不准,此类题一般 也会有相关的语境提示,如I’m not sure、who knows等 ,此时最好用may或might。
表示需要、必须,主 要用于否定句和疑问 句中。needn’t常用 于回答must表请求的 否定回答
—Must I finish my homework now?我必 须现在完成我的家庭作 业吗? —No, you needn’t. 不, 你不需要。
注意 (1) must和have/has to均意为“必须”,常可互 换使用。但have/has to是用于强调客观需要,意为 “必须, 不得不”;must用于表示主观看法, 意为“ 必须, 应该”。如:We’ll have to ask Zhang Hong. 我们必须去问张红了。 We must work hard at school. 在学校我们必须 努力学习。
情态动词本身有一定的意义,但不能独立作谓语, 没有人称和数的变化,后面必须接动词原形。常见的情 态动词有:may, must, need, have to 等,具体用法见下表 :
情态动词
用法
例句
表示能力,意为 Sam can speak English well.
can “能,会”
山姆英语讲得很好。
He could have gone home. 他可能已回家了。
表示需要、必须,主 要用于否定句和疑问 句中。needn’t常用 于回答must表请求的 否定回答
—Must I finish my homework now?我必 须现在完成我的家庭作 业吗? —No, you needn’t. 不, 你不需要。
注意 (1) must和have/has to均意为“必须”,常可互 换使用。但have/has to是用于强调客观需要,意为 “必须, 不得不”;must用于表示主观看法, 意为“ 必须, 应该”。如:We’ll have to ask Zhang Hong. 我们必须去问张红了。 We must work hard at school. 在学校我们必须 努力学习。
情态动词本身有一定的意义,但不能独立作谓语, 没有人称和数的变化,后面必须接动词原形。常见的情 态动词有:may, must, need, have to 等,具体用法见下表 :
情态动词
用法
例句
表示能力,意为 Sam can speak English well.
can “能,会”
山姆英语讲得很好。
He could have gone home. 他可能已回家了。
情态动词语法讲解PPT课件
2表示“许可”和“不许”
a)请求对方“许可”可用can, could, may, might.
may/might较正式,could/might较委婉
表示给予“许可”通常用can/may,而不用 could/might
Could I use your phone? Yes, of course you can. Might I trouble you for a light? You may indeed.
表示将来的“必须”,常用have to的一定 形式(will/shall have to) 比较:
•We must do it again.(表示现在)
•We’ll have to do it again.(表示将来)
•表示过去的“必须”,常用had to
•I had to leave at six yesterday.
•They must be home by now.(他们现在一定到家了)
will/would表示“推测”可有三种情况
1)对特定事态的推测
A: Who’s that man over there? B: That will be George, no doubt. C: That would be George, I except.
• Can they have missed the bus?
• Yes, they may have.
may not重音落在助动词上,表示 “不可能”,重音落在否定词上,表 示“不许可” , 比较:
•He may not go tomorrow.
•He may not go tomorrow.
•所以在书面语中,表示“不可能” 常用can’t
情态动词-完整版PPT课件
情态动词 modal verbs
1.情态动词的用法特点
1)情态动词 除 ought 和 have 外,后面只能 接不带to 的不定式。 2)情态动词没有人称,数的变化,即情态动 词第三人称单数不加-s。 3)情态动词没有非谓语形式,即没有不定式, 分词等形式。
can could may might shall should must will would ought to
have to dare need used to
表示推测
情态动词
不表示推测
2.表示推测——情态动词的重要用法.
情态动词
对将来
对现在
对过去
m肯ust/定sho的uld 推测
+ V. + V. + have done
常见must be + be doi定的推测 can’t, couldn’t
疑问的推测
can, could
+ V.
+ V.
+ have done
+ be doing
可以用not表示“可能不”
+V.
+ V.
+ have done
+ be doing
+ V.
+ V.
+ have done
+ be doing
不同的“肯定”程度可按下列层次排列: He is at home. (事实) He must be at home.(非常肯定的推断) He ought to be at home.(很可能) He could be at home.(很可能) He may be at home.(仅仅可能而已) He might be at home.(或许, 非常不确定) He might not be at home.(也许不在家) He may not be at home. (比might可能) He couldn’t be at home.(很可能不在家) He can’t be at home.(一定不在家)
1.情态动词的用法特点
1)情态动词 除 ought 和 have 外,后面只能 接不带to 的不定式。 2)情态动词没有人称,数的变化,即情态动 词第三人称单数不加-s。 3)情态动词没有非谓语形式,即没有不定式, 分词等形式。
can could may might shall should must will would ought to
have to dare need used to
表示推测
情态动词
不表示推测
2.表示推测——情态动词的重要用法.
情态动词
对将来
对现在
对过去
m肯ust/定sho的uld 推测
+ V. + V. + have done
常见must be + be doi定的推测 can’t, couldn’t
疑问的推测
can, could
+ V.
+ V.
+ have done
+ be doing
可以用not表示“可能不”
+V.
+ V.
+ have done
+ be doing
+ V.
+ V.
+ have done
+ be doing
不同的“肯定”程度可按下列层次排列: He is at home. (事实) He must be at home.(非常肯定的推断) He ought to be at home.(很可能) He could be at home.(很可能) He may be at home.(仅仅可能而已) He might be at home.(或许, 非常不确定) He might not be at home.(也许不在家) He may not be at home. (比might可能) He couldn’t be at home.(很可能不在家) He can’t be at home.(一定不在家)
《情态动词讲解》课件
1
表示能力和可能性
这一用法涉及到情态动词在表示一个
表示推测和推断
2
人或事物的能力或可能性方面的应用。
情态动词还可用来表示具有推测性质
的情况和推断。
3
表示义务和建议
情态动词可用于表示某人应该或必须
表示意愿和打算
4
做的事情,或者提出建议。
用情态动词来表达某人的意愿或打算 进行的行为。
情态动词的否定和疑问
3 同时使用情态动词和实义动词时的注意事项
了解使用情态动词和实义动词时需要注意的细节。
总结
情态动词的重要性
深入理解情态动词的重要性,以及它们在语言中 的作用。
情态动词的学习方法
提供一些有效的学习方法,帮助您更好地掌握情 态动词的用法。
参考资料
书籍推荐
推荐一些深入学习情态动词的相关书籍。
网站推荐
建议一些在线资源,以便进一步学习和练习 情态动词。
2 may/might
表示推测和推断的情态 动词。
3 shall/should
表示义务和建议的情态 动词。
4 will/would
表示意愿和打算的情态动词。
5 must
表示必须和必然的情态动词。
情态动词的用法
情态动词有多种用法,我们将详细讨论其中的一些,包括表示能力和可能性、推测和推断、义务和建 议,以及意愿和打算。
特点
情态动词具有几个典型的特点,例如它们没有人称和数的变化,并且后面跟原形动词。
情态动词的种类
情态动词有几种常见的类型,我们将深入讨论其中的几个种类,包括can/could、may/might、 shall/should、will/would以及must。
1 can/could
情态动词全部ppt课件
A.must
B.would
C.should
D.might
19
• 翻译 • ----我能在这个房间抽烟吗? .
---- 可以。 ---- 不行,… ----Might/ May I smoke in this room?
---- Yes, you can.
---- No, you mustn’t
20
rule.
(威胁)
26
Shall 决心、承诺、警告、命令 you \he\she\they shall…..(二三人称陈述)
When the chairman turns up, nobody shall say a word. 命令 Students shall remain in their seats until the papers have been
28
5. should
1. should表示义务、职责、劝告,意 为 “应该”。
eg: You should keep your promise. Students should respect teachers.
29
2)表示说话人_惊_讶______等特殊情感。
It’s surprising that Mary should not know Lei Feng.
3.must, need没有时态,但有些情态动词如can、 may,will,have to有一般式和过去式的变化。
4. 情态动词不能单独做谓语,必须和实义动词原形 一起构成谓语。
3
情态动词的“时态”形式并不是时间区 别的 主要标志, 不少情况下, 情态动词的 现在式 形式和过去式形式都可用来表 示现在时 间、过去时间和将来时间。
情态动词(12张PPT)初中英语专项复习课件
例句
可能性
The storybook could be Jim’s. He likes reading
小
could 很可能 stories.这本故事书很可能是吉姆的,他喜欢读故
事。
This book must be Lucy’s, for her name is on the must 一定 cover.这本书一定是露西的,因为封面上有她的名 大
态 动
had better 最好,用来提出建议
today.
词
情态动词的基本含义
分析近三年中考真题可知,情态动词的基本用法是中考必考点,考生需 掌握各个情态动词的基本含义(见"考点帮")。
在答题时,应注意结合语境,并考虑常见句型。 常考情态动词有can、may和must及情态动词的否定形式needn’t、
基 本 句
②可能,也许,表示推
They might laugh at me.
型
might 测
情
态 动 词
常 见 情
①必须,表示命令或主观 看法
—Must I finish the homework today? —No, you needn’t/don’t have to. He must be staying here.
基
①能,会,表示能力
I can sing.
本
②可能,表示推测,常用于否定句和疑 Can it be right?
句
问句
型
can ③可以,表示许可和征求对方意见
Can you help me?
情
①能,会,can的过去式,表 I could do it.
态
常
过去的能力
初中情态动词讲解ppt课件
气。 • I want to ask you a question. • =I'd(I would)like to ask you a question. • 我想问你一个问题。 • 3.Would you like~? • 表示请求、劝说,是很客气的说法。 • Would you like a cup of tea? • 您愿意喝杯茶吗?
• b.可能、或许 • (谈论可能性、表示推测,一般用于肯定句)
• Tomorrow I may go shopping. • 明天,我可能(或许)去商店买东西。 • He might be our new teacher. • 他或许是我们的新老师。 • 注意 • might在表示推测时,不表示时态,只是说明可能性比may还要小。
4
must
• a.必须、应该(表示有做某一动作的必要或义务)
• You must buy a ticket. • 你必须买一张票。 • b.一定、准是(表示有把握的判断或推测,一般只用于肯定句中)
• 在You must~.这一句型中,它的意思与祈使句相同。 • You must get up early. =Get up early. • 你必须早起。 • You must study hard. =Study hard. • 你必须用功读书。 • He must be our new teacher. • 他肯定是我们的新老师。 • (语气比may,might要肯定得多)
9
should
• should的用法 • You should read this book. • 你应该读这本书。
• 1.should(应当、应该)用于所有人称,与 ought to~同义。
• You should wait a little more. • =You ought to wait a little more. • 你应该再多等一会儿。
• b.可能、或许 • (谈论可能性、表示推测,一般用于肯定句)
• Tomorrow I may go shopping. • 明天,我可能(或许)去商店买东西。 • He might be our new teacher. • 他或许是我们的新老师。 • 注意 • might在表示推测时,不表示时态,只是说明可能性比may还要小。
4
must
• a.必须、应该(表示有做某一动作的必要或义务)
• You must buy a ticket. • 你必须买一张票。 • b.一定、准是(表示有把握的判断或推测,一般只用于肯定句中)
• 在You must~.这一句型中,它的意思与祈使句相同。 • You must get up early. =Get up early. • 你必须早起。 • You must study hard. =Study hard. • 你必须用功读书。 • He must be our new teacher. • 他肯定是我们的新老师。 • (语气比may,might要肯定得多)
9
should
• should的用法 • You should read this book. • 你应该读这本书。
• 1.should(应当、应该)用于所有人称,与 ought to~同义。
• You should wait a little more. • =You ought to wait a little more. • 你应该再多等一会儿。
情态动词(共43张PPT)
A.Must; mustn't
B.Will; couldn't
C.May; can't
( C ) It's really hot in the room.You'd better
the
windows. A.not to close B.don't close C.not close
(B )
—You
drive after drinking, Simon.
—You're right.I'll take a taxi.
A.wouldn't B.shouldn't C.ought to
二、用恰当的情态动词填空。
Simon, you mmuussttnn''tt play with the knife.You mmayay
在回答以 may 提问的问句时,肯定回答一般可仍用 may 或 Yes, please./Certainly./Sure./Of course.否定回答根据说话人的语气 由强到弱分别选用: mustn't/can't/may not。 —May I watch TV? 我能看电视吗? —No, you mustn't.You must play the piano first.不,你禁止看, 你必须先弹钢琴。
need 的基本用法 意为“需要;必要”,作情态动词时常用于否定句和疑问句中。 You needn't hand in your homework tomorrow.你明天不需要 交你的作业。 Need I attend the meeting this afternoon? 我需要今天下午参 加会议吗?
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
初中英语语法大全——情态动词(共25张PPT)
三. must的用法
1.表示必须 must表示必须多指现在或将来的情况,强调说话者的主观语气即说话者认 为有必要或有义务做某事。对其一般疑问句的肯同答用must,否定回答用 needn't或者don't have to。 Everyone must take notes carefully in Professor Liu’s class. Must I finish the work tonight ? ---Yes, you must. --- No, you needn’t /don't have to.
九、had better的用法
1. 表示劝告或建议 eg: You' d better eat these bananas before they go ba d. 2. had better的否定形式 其否定形式是将not直接放在had better的后面。 eg: You had better not miss the last bus.
3.表示请求或允许 (1)用could 比用can更加迟疑不决,当没有把握得到允许或需 要委婉表达时用could。 eg: Could I take this seat, sir, if you don't mind? eg: You can phone me after six this afternoon. 当允许别人做某事时,答语用cause your cell phone for a while? --- Yes, of course you can.
五. will/would的用法
1、表示意愿 表示自愿做或主动提出做建电如意志 愿望或决心等,可用于各种 人称。would是will的过去式。 eg: I won’t argue with you.我不愿意和你争辩。 eg: Jane said she would not go with Tom, for she didn’t like him. 简说她不愿和汤姆一起去,因为她不喜欢他。
初中情态动词ppt课件
• 4.We_d_o_n_'t_h_a_v_e__to_arrive so early.
命令禁止
must 必须,一定,表达说话人的主观看法 have to 不得不,强调客观需要 mustn't 禁止,不准,绝对不可以 don't have to 没必要
• 4.----Mum,can I wear my jeans to school? • ----No,you________wear your shool uniform.That's the
命令禁止 must have to mustn't don't have to
• 1.He is my best friend,so I__m_u_s_t______help him. • 2.He_h_a_s_t_o______get to school before 8 o'clock. • 3.We_m_u_s_t_n_'t_____sleep in class.
----Yes,please.//----Thanks, but i can manage it. 4.Could you please help me?
----Yes,with pleasure. ----Sorry,I can't.You had better try to ask someone else.
school rule. • A.can B.can't C.have to D.may
• 4.----Mum,can I wear my jeans to school? • ----No,you________wear your shool uniform.That's the
命令禁止
must 必须,一定,表达说话人的主观看法 have to 不得不,强调客观需要 mustn't 禁止,不准,绝对不可以 don't have to 没必要
• 4.----Mum,can I wear my jeans to school? • ----No,you________wear your shool uniform.That's the
命令禁止 must have to mustn't don't have to
• 1.He is my best friend,so I__m_u_s_t______help him. • 2.He_h_a_s_t_o______get to school before 8 o'clock. • 3.We_m_u_s_t_n_'t_____sleep in class.
----Yes,please.//----Thanks, but i can manage it. 4.Could you please help me?
----Yes,with pleasure. ----Sorry,I can't.You had better try to ask someone else.
school rule. • A.can B.can't C.have to D.may
• 4.----Mum,can I wear my jeans to school? • ----No,you________wear your shool uniform.That's the
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may 也表示猜测,意为“可能”。
3) Where is my English book? It might / may be in your desk.
精品PPT
Ⅰ.用适当的情态动词填空:
1. I can play football. ____C__a_n___you swim? 2. I can’t play with you. I ___m_u_s__t___finish my
9. __D____ the girl read before she went to school? A. Can B. Must C. Ca精n品PPTD. Could
精品PPT
精品PPT
He is a singer and actor, he is known by everyone.
Whose dog is this?
--No, you ___B___. There’s something wrong with the
toilet.
A. needn’t B. mustn’t C.精s品hPPoTuldn’t D. didn’t
must / must not
must 的用法: must 必须 ,表示说话人的 主观意志。
You must do your homework first.
精品PPT
must / must not
must not的用法: mustn’t 表示禁止 ,不准,不允许。 You mustn’t smoke here. You mustn’t play with fire.
精品PPT
must / must not
以must开头的疑问句,
肯定回答:Yes , …must.
否定回答: No, … needn’t. 或 No, … don’t have to.
-- Must I clean the classroom now? -- Yes, you___m_u_s_t_ . -- No, you __n_e_e_d_n_’t__ . /
Whose dog is this?
It might / could be___.
精品PPT
An actor, he is tall, cool and popular.
Whose dog is this?
It might / could be___.
It must be Zhang Han’s.
3) Can you skate? 2. 表示允许 (可以)
1)Can I use your dictionary? 2)----- Can I go home now?
----- Yes, you can. / No, you can’t.
精品PPT
could
1. 是can 的过去式; 表示过去的能力;
精品PPT
6. _C_a_n__that wallet yours? --No, it _c_a_n_’_t __be mine. Mine is here.
7.The pen_m__ig_h_t_/_c_o_u_l_d belong to him. It’s on his desk.
8.My mother __c_a_n__’t___ be at home. She left home
small for him.
精品PPT
用must, could, can’t, might填空。
精品PPT
He is rich but helpful.
Whose car is this?
It might/ could be _____. It can’t be _______. It must be_________. 精品PPT
He is rich but helpful.
Whose car is this? It might/ could be _____. It can’t be _m__i_n_e__.
homework first.
3. I___m__u_s_t___ get up early tomorrow. because I
have a meeting.
4. Nobody ___c_a__n_____live without air.
精品PPT
5.__M__a_y_____I come in ?Yes ,please.
精品PPT
He is a basketball player. Whose car is this?
It might / could be __.
ll player. Whose car is this?
It might / could be __.
It must beY__ao__M__in_g_’s_. It can’t be _m__i_n_e____.
It might/ could be____.
精品PPT
He is a singer and actor, he is known by everyone.
Whose dog is this?
It might/ could be____. It must be Liu Dehua’s.
精品PPT
An actor, he is tall, cool and popular.
1.The storybook__m_u_s_t _ be hers. It has her name on it.
2.The beautiful trousers _c_a_n_’t__ be Lily’s. Because
they’re too long.
3.I can’t find my key. It__c_o_u_ld_/m__ig_h_t__ be left at home. 4.The volleyball__m_ig_h_t_/c_o_u_ld__ be Sally’s or Ann’s. They both like playing volleyball. 5.The piano__m__ig_h_t/_c_o_u_ld__ belong to Alice. She often plays the piano.
need 作行为动词,有人称、数和时态的 变化后接to do, 即精品nPPeTed to do sth.
might / may
might 1. 是 may 的过去式。
2. 表示推测, 可能性较小。 1) He might be very busy now. 2) Your mother might know the truth.
精品PPT
might, could 表示推测
语气更委婉,表示的可能性较小,说话中留 有余地,意为“可能,也许,或许”。
1. The football might / could be Jack’s. He likes all kinds of ball games.
2. Liu Mei isn’t here today. She might / could be ill.
He could ride a bike at the age of five.
2. 用于婉转语气,多用于问句。“能,可以” Could you please clean the room?
---- Could I come to see you tomorrow? ---- Yes, you can. ( No, you can’t. )
6. _C__o_u_l_d____you please tell me where the
station is ?
7. Must I finish the work now ?
No, you __n_e_e_d__n_’t___.
8. --Need I take this book out? --Yes , you __D___ . A. can B. may C. need D. must
No, you __d_o_n_’_t_h_a_v_e_to_ . 精品PPT
need
need作情态动词,主要用于疑问句和否定句中
need 一般疑问句: 肯定回答用 Yes, … must, 否定回答用 No,…needn’t . 或 No,…don’t have to.
如: Need I do it now? Yes, you __m_u_s_t___。 No, you _n_e_e_d_n_’t_/_d_o_n_’_t _h_a_ve__to__ .
精品PPT
may / may not
may的一般疑问句,其否定回答用 can’t 或
mustn’t。
1. --May I go home now? --Yes, you may. / Sure. / Yes, please. No, you can’t./ mustn’t.
2. --May I use your washroom now?
must 一定,肯定 (100%的可能性)
might, could 有可能,也许(20%~80%的可能性)
can’t 不可能,不会(精可品PPT能性几乎为零)
意思
推测程度
must 一定,肯定 用于非常确定的推测
may
有可能,
might 也许 /could
用于不确定的推测
can/ 不可能, 在疑问句和否定句中
此处 could 不是过去式,只是语气更委婉, 答语中不能用could和 couldn’t,要用can 和
can’t。
精品PPT
may / may not
may的用法: 1. 表示请求和允许 (可以), 比can 正式.
May I come in? He may come if he likes.
3) Where is my English book? It might / may be in your desk.
精品PPT
Ⅰ.用适当的情态动词填空:
1. I can play football. ____C__a_n___you swim? 2. I can’t play with you. I ___m_u_s__t___finish my
9. __D____ the girl read before she went to school? A. Can B. Must C. Ca精n品PPTD. Could
精品PPT
精品PPT
He is a singer and actor, he is known by everyone.
Whose dog is this?
--No, you ___B___. There’s something wrong with the
toilet.
A. needn’t B. mustn’t C.精s品hPPoTuldn’t D. didn’t
must / must not
must 的用法: must 必须 ,表示说话人的 主观意志。
You must do your homework first.
精品PPT
must / must not
must not的用法: mustn’t 表示禁止 ,不准,不允许。 You mustn’t smoke here. You mustn’t play with fire.
精品PPT
must / must not
以must开头的疑问句,
肯定回答:Yes , …must.
否定回答: No, … needn’t. 或 No, … don’t have to.
-- Must I clean the classroom now? -- Yes, you___m_u_s_t_ . -- No, you __n_e_e_d_n_’t__ . /
Whose dog is this?
It might / could be___.
精品PPT
An actor, he is tall, cool and popular.
Whose dog is this?
It might / could be___.
It must be Zhang Han’s.
3) Can you skate? 2. 表示允许 (可以)
1)Can I use your dictionary? 2)----- Can I go home now?
----- Yes, you can. / No, you can’t.
精品PPT
could
1. 是can 的过去式; 表示过去的能力;
精品PPT
6. _C_a_n__that wallet yours? --No, it _c_a_n_’_t __be mine. Mine is here.
7.The pen_m__ig_h_t_/_c_o_u_l_d belong to him. It’s on his desk.
8.My mother __c_a_n__’t___ be at home. She left home
small for him.
精品PPT
用must, could, can’t, might填空。
精品PPT
He is rich but helpful.
Whose car is this?
It might/ could be _____. It can’t be _______. It must be_________. 精品PPT
He is rich but helpful.
Whose car is this? It might/ could be _____. It can’t be _m__i_n_e__.
homework first.
3. I___m__u_s_t___ get up early tomorrow. because I
have a meeting.
4. Nobody ___c_a__n_____live without air.
精品PPT
5.__M__a_y_____I come in ?Yes ,please.
精品PPT
He is a basketball player. Whose car is this?
It might / could be __.
ll player. Whose car is this?
It might / could be __.
It must beY__ao__M__in_g_’s_. It can’t be _m__i_n_e____.
It might/ could be____.
精品PPT
He is a singer and actor, he is known by everyone.
Whose dog is this?
It might/ could be____. It must be Liu Dehua’s.
精品PPT
An actor, he is tall, cool and popular.
1.The storybook__m_u_s_t _ be hers. It has her name on it.
2.The beautiful trousers _c_a_n_’t__ be Lily’s. Because
they’re too long.
3.I can’t find my key. It__c_o_u_ld_/m__ig_h_t__ be left at home. 4.The volleyball__m_ig_h_t_/c_o_u_ld__ be Sally’s or Ann’s. They both like playing volleyball. 5.The piano__m__ig_h_t/_c_o_u_ld__ belong to Alice. She often plays the piano.
need 作行为动词,有人称、数和时态的 变化后接to do, 即精品nPPeTed to do sth.
might / may
might 1. 是 may 的过去式。
2. 表示推测, 可能性较小。 1) He might be very busy now. 2) Your mother might know the truth.
精品PPT
might, could 表示推测
语气更委婉,表示的可能性较小,说话中留 有余地,意为“可能,也许,或许”。
1. The football might / could be Jack’s. He likes all kinds of ball games.
2. Liu Mei isn’t here today. She might / could be ill.
He could ride a bike at the age of five.
2. 用于婉转语气,多用于问句。“能,可以” Could you please clean the room?
---- Could I come to see you tomorrow? ---- Yes, you can. ( No, you can’t. )
6. _C__o_u_l_d____you please tell me where the
station is ?
7. Must I finish the work now ?
No, you __n_e_e_d__n_’t___.
8. --Need I take this book out? --Yes , you __D___ . A. can B. may C. need D. must
No, you __d_o_n_’_t_h_a_v_e_to_ . 精品PPT
need
need作情态动词,主要用于疑问句和否定句中
need 一般疑问句: 肯定回答用 Yes, … must, 否定回答用 No,…needn’t . 或 No,…don’t have to.
如: Need I do it now? Yes, you __m_u_s_t___。 No, you _n_e_e_d_n_’t_/_d_o_n_’_t _h_a_ve__to__ .
精品PPT
may / may not
may的一般疑问句,其否定回答用 can’t 或
mustn’t。
1. --May I go home now? --Yes, you may. / Sure. / Yes, please. No, you can’t./ mustn’t.
2. --May I use your washroom now?
must 一定,肯定 (100%的可能性)
might, could 有可能,也许(20%~80%的可能性)
can’t 不可能,不会(精可品PPT能性几乎为零)
意思
推测程度
must 一定,肯定 用于非常确定的推测
may
有可能,
might 也许 /could
用于不确定的推测
can/ 不可能, 在疑问句和否定句中
此处 could 不是过去式,只是语气更委婉, 答语中不能用could和 couldn’t,要用can 和
can’t。
精品PPT
may / may not
may的用法: 1. 表示请求和允许 (可以), 比can 正式.
May I come in? He may come if he likes.