Lesson 17 Always young青春常驻情态动词 must

提示:请购卖正版书籍或加载课件方式学习。

Lesson 16 A polite request

Lesson 18 He often does this!

5个相关单词

与课文关联的单词

appear ^*

/əˈpɪə(r)/v. 登场，扮演

stage ^*

/steɪdʒ/n. 舞台

bright ^*

/braɪt/adj. 鲜艳的

stocking

/ˈstɒkɪŋ/n. （女用）长筒袜(棉的, 绒的, 并不是现在的丝袜)

sock

/sɒk/n. 短袜

课文理解永远年轻更新于:2026-01-09 00:57:45

My aunt Jennifer is an actress.

男性	女性	雄性	雌性	Male	Female
actor ^男演员	actress ^女演员	lion ^公狮子	lioness ^母狮子	policeman ^警察	policewoman ^女警察
waiter ^男服务员	waitress ^女服务员	tiger ^老虎	tigress ^母老虎	steward ^男乘务员	stewardess ^女乘务员
prince ^王子	princess ^公主	bull ^公牛	cow ^母牛	Male Nurse ^男性护士	Female Pilot ^{女性飞行员}
doctor ^男医生	woman doctor ^女医生	cock ^公鸡	hen ^母鸡	headmaster ^校长	headmistress ^女校长
god ^神	goddess ^女神	ram ^公羊	ewe ^母羊	mayor ^市长	mayoress ^女市长

She must be at least thirty-five years old.

数字 + years old ^作表语	数字 + -year-old ^作定语
thirty-five years old ^三十五岁	my four-year-old daughter ^{我四岁的女儿}

must + 动词原形 ^{不得不, 必须；(对现在的)推测}

She must be a model. ^{她肯定是一个模特}
She is fifteen years old. ^{她十五岁了}
She must be fifteen years old. ^{她很可能五岁}

at least ^{至少, 最少}	at most ^最多
If you can’t clean the car, you can at least help me to clean it. She must be at least fifteen years old. ^{她至少十五岁}	As a news item it merits a short paragraph at most.^{作为一则新闻，它至多只能占一小段。} She must be at most fifteen years old. ^{她最多十五岁}

In spite of this, she often appears on the stage as a young girl.

in spite of 不管，尽管 ^{(“of” 为介词, 后面一定会加名词、代词或从句)}	in spite of this ^尽管如此
In spite of great peril, I have survived.^{尽管危险巨大，我还是活了下来。} The Derby will be run in spite of the bad weather.^{尽管天气恶劣，德比马赛仍将举行。} In spite of what you have said about her, she is much better than Mary.	In spite of this, I still like school.^{（school 前不加“the”表示上学，加“the”只表示学校）} In spite of this she often corrected me.^{尽管她这么说，可还是不断纠正我的话。} In spite of this, I finally decided to go XiaMen.^{尽管这样，我还是决定去厦门。}

Jennifer will have to take part in a new play soon.

have to ^{不得不(被动)}	must ^{必须(主动)}
She will have to go to school.^{她将不得不去上学。}	All this mail must be answered. ^{所有这些信件都必须回复。}

will have to 可以使用 must 替换，但must无法体现出其将来的时态。will have to 更强调了将来的必要性。

join sb./sth. ^{参加了某一种团体}	take part in ^{参加某一种活动}	attend ^{v.随同，陪同；经常去;出席}
join the army ^参军 join the party ^入党 join us ^{(口语)加入我们(这个团体)中来}	take part in the race ^参加比赛 take part in a play take part in the party	attend the meeting ^{参加会议, 出席会议} attend the party / class ^{出席宴会/上课} Thank you for your attending / listening. ^{谢谢大家的出席(到来)/聆听}

This time, she will be a girl of seventeen.

两种年龄的表达

表语	定语
She is eighteen years old. ^她18岁	She is a girl of eighteen. ^{她是一个18岁的女生}

In the play, she must appear in a bright red dress and long black stockings.

in + ( 颜色、衣服) ^{穿着…样的衣服，用介词短语取代动词，避免了一句话中出现两个动词}

The boy in green.
in a bright red dress ^{鲜红色的连衣裙}
bright,orange-coloured dress ^{鲜艳的桔黄色衣服}

If anyone ever asks her how old she is, she always answers, 'Darling, it must be terrible to be grown up!'

ever ^{adv. 曾经，从来，在任何时候}	at any time ^{任何时候(时间副词)}
It's raining worse than ever. ^{雨下得比以往都大。}	The rain is heavier all the time. ^{雨下得比以往都大。}

grown-up ^{adj. 成年人}	grow up ^(人)成长
be grown-up ^{作为一个成年人} They have three grown-up sons.^{他们有三个成年的儿子。}	These days kids grow up so quickly.^{如今孩子们成长得真快。} Why don't you grow up? ^{你怎么就长不大呢？}

当有人问你年龄时，你可以这样回答

It is a secret.
It is privacy.
I forget it.

语法知识情态动词 must 更新于:2026-03-13 10:02:35

情态动词用于表示说话人的意愿、能力、推测、建议、命令等含义。情态动词通常在句子中与其他动词连用，以构成各种不同的语气和语态。

Can ^{表示能力、许可或询问}	I can swim.^{（我会游泳。）}
Could ^{Can的过去式式，表示过去的能力、许可或询问；也可用于委婉的请求或建议}	Could you pass me the salt, please?^{（请你递给我盐，好吗？）}
May ^{表示可能性、许可或问询}	May I use your phone?^{（我可以使用你的手机吗？）}
Might ^{May的过去式，表示较弱的可能性、推测或委婉地提出请求}	It might rain later.^{（后面可能会下雨。）}
Must ^{(无时态要求)表示强烈的必要性、推测或推断}	You must wear a seatbelt.^{（你必须系安全带。）}
Shall ^{(仅用于第一人称)表示提出建议、征询意见或表达将来的决定}	Shall we go to the movies?^{（我们去看电影吗？）}
Should ^{Shall的过去式，表示建议、推荐或期望}	You should eat more fruits and vegetables.^{（你应该多吃水果和蔬菜。）}
Will ^{表示将来的意愿、决心或预测}	I will help you with your homework.^{（我会帮你做作业。）}
Would ^{Will 的过去式，表示过去的习惯、委婉的请求或虚拟假设}	He would always arrive late.^{（他过去总是迟到。）}

形式：主语 + 情态动词 + 动词原型

情态动词无复数、无三单的变化。
情态动词时态变化有限^{(现在与过去)}，may一般现在时变为might一般过去式。
can 与 could 不一定非要对应为过去，很多时候是语气上的差异。can比could的语气强硬一点。很多时候我们更推荐使用could 这样更委婉的语气词做为一般疑问句。
情态动词的否定、疑问句直接提前或者加not.^{（can的否定只能是cannot与cann't 中间不能有空格）}
情态动词具有单一性，一个句子里只能出现1次。

Must ^{必须、肯定}
表示推测 ^{“肯定，一定” 具有情态动词中最强的推测度（有把握性）}	情态动词 ^{表示“必要，命令或强制，邀请，决心，不可推卸的责任”等}
She must be 35 years old. ^{她肯定有35岁了(情态动词 + 动词原型)} She is 35 years old. ^{原句(明确的知道，无推测)} You must be the new teacher. ^{你肯定是新老师吧} You are the new teacher. ^{你是新老师} He looks pale. ⇒ He must be ill. ^{通过 pale 推测出 ill}	I must do it now. ^{我必须现在做} She must do it now. ^{她必须现在做} You must do it tomorrow. ^{你必须明天做} All income must be declared. ^{所有收益必须申报。} We must broaden our appeal.^{我们必须扩大我们的吸引力。}

在其他时态里，must 的有些含义可以用 have to 或 have got to。这三种形式一般可以互换，但用于第一人称时，have to(have got to)强调客观的要求或外在的原因， must 则强调主观的要求或表示说话的人认为自己有权做某事。

must ^{无时态，通常只用于现在时和将来时}	have to ^{可以变换时态}
Must you leave now? ^{难道你非得现在就走吗？} I’m afraid so. I have to/must study for an exam. You must cope with it.^{你必须应付它。} The suit must definitely fit well. ^{这套衣服一定很合身。}	I have to do it now. ^{一般现在时} She has to do it now. ^{一般现在时三单} You will have to do it tomorrow. ^{一般将来时} They had to do it yesterday. ^{一般过去时}

have to 和 have got to 往往可以互换，但与 always，sometimes 等频度副词连用时，用 have to 往往比用have got to 好。have got to 比 have to 更口语化。在 I think…/he thinks…的从句中，一定要用事实说话. (不能说成 “I think he must be a fool.” ) must be 的否定式为 can’t be（不可能）

单词句型As 的用法更新于:2023-12-30 10:23:35

作为介词 ^{可以表示“作为”、“以…身份”等}	作为连词 ^{可以表示“因为”、“正当…时候”、“以…方式”或“如同…那样”等}	“担任…工作”
In this film, he appeared as a policeman.^{他扮演一名警察。} As a mechanic, he can’t always keep himself clean. ^{作为一名机械师…}	You must take care of the bady tomorrow as I am going to London. As ^{（因为，由于）} we were talking about him, he knocked at the door.^{（正当…时候）} Do as you are told. ^{叫你怎么做就怎么做(按你被告知的那样去做)（以…方式）} As I learned, … ^{（如同…那样）}	I work as an engineer. ^{我是一名工程师。} He has worked as a diplomat in the U.S., Sudan and Saudi Arabia. ^{他曾做过驻美国...的外交官。}

扩展知识must 推测现在与过去更新于:2023-12-30 05:09:49

推测现在	推测过去
You must be the new teacher. ^{一般现在时} They must be waiting for you. ^{正在进行时}	It must have rained last night. ^{昨天晚上肯定下雨了} She must have cried just now. ^{她肯定刚刚哭过}

learn one’s lesson ^{吸取教训;吃一堑，长一智}

共有9题需要完成

练习题

Good morning. I've got an appointment with Miss Smith in the Personnel Department.Ah, good morning. You be Mrs. Peters.^（单选）

A、might
B、must
C、would
D、can
I can't boot my computer now. Something （一定出了毛病) with its operation system.^（填空）

must be wrong
The story about Jennifer suggests that .^（单选）

A、she is not too old to appear on stage as a young girl
B、she is too young to appear on stage as a young girl
C、she is the right age to appear on stage as a young girl
D、she is too old to appear on stage as a young girl
One of these statements is true. Which one? ^（单选）

A、We know exactly how old Jennifer is.
B、We do not know exactly how old Jennifer is.
C、Jennifer is thirty-five years old.
D、Jennifer is over thirty-five years old.
She must be at least thirty-five years old. In my opinion she .^（单选）

A、has
B、is
C、can
D、must
She had to wear short socks. It was for her to wear them.^（单选）

A、certain
B、necessary
C、important
D、impossible
She often appears as a young girl. She on the stage as a young girl.^（单选）

A、is presented
B、points
C、show
D、seems
Men usually wear .^（单选）

A、socks instead of stockings
B、stockings instead of socks
C、either socks or stockings
D、neither socks nor stockings
She is grown up. She is .^（单选）

A、very old
B、an adolescent
C、a teenage
D、an adult

Lesson 16 A polite request

Lesson 18 He often does this!

Lesson 17 Always young青春常驻情态动词 must

与课文关联的单词

appear *

stage *

bright *

stocking

sock

My aunt Jennifer is an actress.

She must be at least thirty-five years old.

must + 动词原形 不得不, 必须；(对现在的)推测

In spite of this, she often appears on the stage as a young girl.

Jennifer will have to take part in a new play soon.

This time, she will be a girl of seventeen.

两种年龄的表达

In the play, she must appear in a bright red dress and long black stockings.

in + ( 颜色、衣服) 穿着…样的衣服，用介词短语取代动词，避免了一句话中出现两个动词

If anyone ever asks her how old she is, she always answers, 'Darling, it must be terrible to be grown up!'

形式：主语 + 情态动词 + 动词原型

练习题

Good morning. I've got an appointment with Miss Smith in the Personnel Department.Ah, good morning. You be Mrs. Peters.（单选）

I can't boot my computer now. Something （一定出了毛病) with its operation system.（填空）

The story about Jennifer suggests that .（单选）

One of these statements is true. Which one? （单选）

She must be at least thirty-five years old. In my opinion she .（单选）

She had to wear short socks. It was for her to wear them.（单选）

She often appears as a young girl. She on the stage as a young girl.（单选）

Men usually wear .（单选）

She is grown up. She is .（单选）

Lesson 17 Always young

正在获取视频播放地址... 视频下载

appear ^*

stage ^*

bright ^*

must + 动词原形 ^{不得不, 必须；(对现在的)推测}

in + ( 颜色、衣服) ^{穿着…样的衣服，用介词短语取代动词，避免了一句话中出现两个动词}

Good morning. I've got an appointment with Miss Smith in the Personnel Department.Ah, good morning. You be Mrs. Peters.^（单选）

I can't boot my computer now. Something （一定出了毛病) with its operation system.^（填空）

The story about Jennifer suggests that .^（单选）

One of these statements is true. Which one? ^（单选）

She must be at least thirty-five years old. In my opinion she .^（单选）

She had to wear short socks. It was for her to wear them.^（单选）

She often appears as a young girl. She on the stage as a young girl.^（单选）

Men usually wear .^（单选）

She is grown up. She is .^（单选）