unit6-Electricity

unit6-Electricity


2024年2月9日发(作者:g500跟g63有什么区别)

unit6-Electricity

Unit 6 Electricity

words精讲

1. electricity, n.电力; 电流,静电; 高涨的情绪; 紧张

While I was cooking supper, the electricity went off..

链接:electrical电的, 有关电的;electric电的, 导电的, 电动的;electron电子

2. foolish,adj.愚蠢的; 鲁莽的; 荒谬的,可笑的

如:He was angry with himself for having made such a foolish mistake.

链接:fool (n.) 傻瓜 + ish → foolish (adj.) 愚蠢的

What a fool I was to believe he is a good man!

3. identify, vt.识别、认出,确定,使参与,把…看成一样;vi.确定;认同

如:Could you identify your coat among a hundred others.

链接:identical adj 同样的;identification n. 辨认, 鉴定, 证明; identify v. 识别, 鉴别,确定

4. cable, n. 缆绳绳索;[电学]电缆;巨缆 ;vt. 发电报至;电传;固定系牢

如:Steel cable will be used to replace worn ropes.

Cable TV 有线电视

5. moment, n. 瞬间,片刻;时刻;重要,紧要; 红极一时

如:I'll be back in a moment.

链接:for the moment暂时目前; at the (或 this) moment马上,任何一刻,随时。

6. touch, vt.触摸;使某物与…轻轻接触; n.触摸,碰;触觉,润色,痕迹;vi.接触;联系

如:He kept in touch with us while he was on vacation.

链接:get in touch with 和...取得联系;keep in touch with 和…保持联系。

二.Phrases精讲

1. (be) careful with小心对待;谨慎处理

These glasses are very expensive, so he is very careful with them.

Be careful with those fireworks. They may cause fire.

2. connect to(使)连接;联结

Connect the hose to the tap and turn on the tap.

4. switch off关(电灯,机器)

Please switch the light off before leaving the room.

5. turn off 关上 (switch on, turn on打开)

In order to save electricity, please turn off/ switch off all the lights when you leave the room.

三、知识详解

1. I’m going to buy a packet of sweets.

a packet of 一袋。其后可接可数名词复数或不可数名词用来表示数量。

不可数名词没有复数形式,在表示数量时,常用“a+单位量词+of+不可数名词”结构。

a+单位量词+of+不可数名词

a piece of meat; a piece of paper; a glass of apple juice; a bag of milk

a +单位量词+of+可数名词复数

a basket of eggs; a bag of apples

数词+单位量词+of+不可数名词

two glasses of water; three cups of tea

数词+单位量词+of+可数名词复数

two packets of sweets ; three bags of pencils

2. It is like water, in a way…

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it a way 在某种程度上

In a way, you are right. 在某种程度上,你是对的.

与way的相关短语:

In the way 妨碍;挡道

His hobby sometimes gets in the way of his studies. 有时他的爱好妨碍了他的学业.

on the way 在途中;在路中

He is on the way to school now. 他现在在上学的途中.

by the way 顺便问一下

By the way, who is Tom? 顺便问一下,谁是汤姆?

all the way 一直

He studies hard all the way. 他学习一直很努力.

3. Electricity comes into our flat through thin wires. 电通过细电线进入我们的公寓.

come into 进入……之内

Water comes into our houses through pipes(管线;管道;管子).

4. These are connected to cables under the street…

connect 连接… 常用结构: be connected to sth. 连接到…… ;

connect sth. to/with… 把…和…连接起来.

Turn on your computer and connect it to the Internet.

The railway line connects Wuhan to Shanghai.

5. A moment later, Daisy came back.

A moment later 一会儿,没多久

A moment later, my friend came down . 过不多久,我的朋友下来了。

It is overcast in the sky. It must rain a moment later. 天阴沉沉的,过一会儿一定会下雨。

The waiter goes into the room with the beer a moment later.片刻之后,服务员端着啤酒走进了雅间。

(1)moment 可数名词,意为”瞬间;片刻”

I’d like to talk to you for a moment.

与moment相关的短语:

① a moment ago 刚刚;刚才

He was here a moment ago.

② at the moment 现在;此刻

He is at home at the moment.

③wait a moment 等一会儿

Wait a moment, please.

(2) later 副词,意为”后来;以后”

6. Batteries provide toy cars with…(p74)

provide sb. with sth. 供应给某人某物

The sun provides us with light and heat.

“为某人提供某物”还可以用 provide sth for sb.

7. ...speak as many languages as Lo. … 说和Lo一样多的语言.

“as many + 复数名词+as ” 意为”和……一样多的…”

I have as many books as you. 我和你有一样多的书.

“as much +不可数名词+as” 意为”和…一样多的…”

My brother drinks as much milk as I every day.

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8. share cups with others 与别人合用杯子

share sth. with sb. 与某人合用/分享某物

Lucy shares a bedroom with Lily. 露西和莉莉合用一间卧室.

9. Keep the outside of the pot dry. 让锅的外表保持干燥。

(1 )“keep + sb. / sth. + 形容词” 意为“让某人/某物保持某种状态”。

(2) keep doing sth. 连续不断地做某事,一直做。强调不断重复的动作。

Li Lei keeps buying books about cars. 李雷不断地买有关车的书。

(3) keep sb./ sth. doing sth. 让某人不断地做某事

(4) keep sb. from doing sth. 阻止某人做某事

We must keep them from getting to know our plans. 我们必须防止他们知道我们的计划。

10. …because it might start a fire. ……因为它可能会引起火灾。

might 情态动词,意为“可能,也许”。

I’m afraid it might rain today. 恐怕今天会下雨。

11. Stand at least one metre away from the microwave when it is on.

at least 至少

A child must sleep at least eight hours a day.

You should at least have warned her. 你至少该警告她。

与least有关的短语:

(1) not in the least 一点也不

He is not in the least worried about his future.他一点也不担心他的未来。

(2) least of all 最不……的

Nobody cared, least of all my little brother. 没有人在意,更不用说我的小弟弟了。

12. …make sure it is microwave safe. ……确保它适用于微波炉。

Make sure 务必,确信

13. Go out alone take the medicine on time (P79)

alone 单独的;独立的---指无人陪伴,不表示内心的感觉

lonely 孤独的;荒凉的;寂寞的----内心世界的孤独感

on time 准时;按时

in time 及时

Please come on time. 请准时来.

You’re just in time. 你正好赶到.

14. You must switch off the electricity. (p81)

switch off 关闭

When the clock struck twelve, I switched off TV and went to bed.

时钟敲响十二点时, 我关了电视上床睡觉。

switch n.开关

Where is the light switch?电灯开关在哪儿?

vt. 转换

He is always switching jobs.他总是变换工作。

15.…make sure it is microwave safe. ……确保它适用于微波炉。

Make sure 务必,确信

课堂练习

1. Mum makes me eat an apple every day ______ the doctor away.

A. keeps B. is kept C. to keep D. kept

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2. Farmers have become ______ in our hometown in recent years.

A. more and more rich B. richer and richer C. more rich and more rich

3. With the help of the new technology, you _____ e-mail your friends by mobile phone.

A. can B. must C. need D. should

4. ----_______ I swim here? ----I’m sorry. Children _____ swim alone here.

A. Must; can’t B. May; must C. Can; mustn’t D. Can’t; can

5. You _____ jump onto a bus while it is still moving. It is too dangerous.

A. can B. must C. can’t D. mustn’t

6. ---Can he speak English?

----________.

A. Yes, he does B. Yes, he did

C. Yes, he can D. Yes, he must

8. _______ call me Mimi! It’s my cat’s name.

A. Not B. Doesn’t C. Don’t D. Be not

9. Look, the dining hall is right on ______ side of the street.

A. another B. other C. the another D. the other

10. ---What can I do for you? ---I’d like two _______.

A. packet of tea B. packets of apple

C. packets of tea D. packet of apples

11. It’s too late. It’s time to go to bed. Lily, ______ the TV.

A. switch on B. switch off C. turn up D. close

12. The computer is connected _______ a machine.

B. to C. on D. in

13. I asked him twice. But he didn’t ______ my questions.

A. answers B. answer to C. reply D. reply to

14. I washed a lot of clothes. Who can _______?

A. tidy up them B. tidy them up

C. tidy it up D. tidy up it

15. About ____ people took part in planting trees last year.

A. million of B. two millions

C. two million D. two millions of

四、语法讲解

Grammar精讲:情态动词

1、情态动词的定义: 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语。

We can be there on time tomorrow. 我们明天能按时去那儿。

May I have your name? 我能知道你的名字吗?

Shall we begin now? 我们现在就开始吗?

You must obey the school rules.你必须遵守校规。

2、情态动词数量不多,但用途广泛,主要有下列:

can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) .

3、情态动词的位置: 情态动词在句中放在谓语动词之前, 谓语动词前若有助动词,则在助动词之前,疑问句中, 情态动词则在主语之前。

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I can see you. Come here. 我能看见你,过来吧。

He must have been away.他一定走了。

What can I do for you? 你要什么?

How dare you treat us like that!你怎能那样对待我们!

4、情态动词的特点: 情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not"。个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来。

He could be here soon. 他很快就来。

We can't carry the heavy box. 我们搬不动那箱子。

I'm sorry I can't help you. 对不起,我帮不上你。

5、情态动词的用法:

can (could) 表示说话人能,可以,同意,准许,以及客观条件许可,could 为 can 的过去式。

Can you pass me the books? 你能给我递一下书吗 ?

Could you help me, please? 请问,你能帮助我吗?

5、can 和could 只能用于现在式和过去式两种时态,将来时态用 be able to 来表示。

He could help us at all. 他完全可以帮助我们。

With the teacher's help,I shall be able to speak English correctly.

由于老师的帮助,我将能准确地讲英语。

6、 may (might) 可以, 表示说话人同意,许可或请求对方许可。

You may take the book home. 你可以把书带回家去.

May I come in? 我可以进来吗?

May I use your dictionary? 我可以用你的词典吗?

You may put on more clothes. 你可以多穿点衣服.

He said he might lend us some money. 他说他可以借给我们一些钱。

may 否定式为 may not

might 是may 的过去式, 有两种用法, 一种表示过去式,一种表示虚拟语气, 使语气更加委婉, 客气或对可能性的怀疑。

He told me he might be here on time. 他说他能按时间来。

Might I borrow some money now. 我可以借点钱吗?

He might be alive. 他可能还活着。

7、Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。

must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。

I must finish my work today.我今天必须完成我的工作。

You mustn't work all the time. 你不能老是工作。

Must I return the book tomorrow? 我必须明天还书吗?

After such a long walk, you must be tired. 走了这么长的路,你一定困了。

He must be the man I am looking for. 他一定是我要找的人。

He had to go because of somebody's calling him that day. 那天他要走是因为有人叫他。

Must 的否定形式 must not 表示“不应该”或“不许可”,语气比较强烈。

Passengers must not walk across the railway line. 旅客不要横穿马路。

注意:说“不必”须用need not . 如:

Must we hand in our homework today?-------No, you need’t.

我们今天必须交家庭作业吗?------不,不必今天交。

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must + have + 过去分词,表示现在对过去事物的推测。

He must have told my parents about it.他一定把这件事情告诉我父母亲了。

He must have received my letter now. 他现在一定收到我的信了

It's six o'clock already, we must have been late again.已经六点钟了,我们一定又迟到了。

must 和 have to 的区别: must 表示说话人的主观思想, have to 表示客观需要。

You must do it now. 你必需现在就干。(说话人认为必须现在干)

I have to go now. 我得走了。(客观条件必须现在走)

need 需要 多用在否定式或疑问句中.

Need I attend the meeting tomorrow?我需要明天参加会议吗?

You need not hand in the paper this week. 这一周你不必交论文。

8、need 是一个情态动词, 他的用法完全和其他情态动词一样, 但 need 还可当作实义动词使用, 这时 need 就象其他动词一样,有第三人称,单复数, 后面加带 to 的动词等特性。

I need a bike to go to school. 我上学需要一辆自行车。

Do you need a dictionary? 你需要词典吗?

She needs a necklace. 她需要一条项链。

needn't + have + 过去分词 表示过去做了没必要做的事情。

You needn't have taken it seriously. 这件事情你不必太认真。

dare 敢 多用在否定或疑问句中。

The little girl dare not speak in public. 小女孩不敢在公众面前说话。

Dare you catch the little cat? 你敢抓小猫吗?

9、dare 除用作情态动词外,更多的是当实义动词使用, 用法同实义动词一样,要考虑人称,单复数,时态等。

Do you dare to walk in the dark? 你敢黑夜走路吗?

He doesn't dare to tell the teacher what happened that day. 他不敢告诉老师那天发生的事。

10、ought 应当,应该 后面跟带有 to 的动词不定式.

You ought to read these books if you want to know how to repair the motorcar. 如果你想知道如何修理汽车,你应该读这些书。

You ought to bring the child here. 你应该把孩子带来。

ought + to have done 句型。指过去动作,表示一件事情该做而未做。

You ought to have been here yesterday. 你昨天就应该来。

ought not to have done 句型。表示一件不该做的事情却做了。

You ought not to have taken the book out of the reading-room. 你不应该把书带出阅览室。

11、will (would)决心,愿望。 would 为 will 的过去式, 可用于各人称。

I'll do my best to catch up with them. 我要尽全力赶上他们。

I'll never do it again, that's the last time. 我再不会做那件事情了,这是最后一次。

He said he would help me. 他说他会帮助我

will, would用于疑问句表示说话人向对方提出请求或询问,用 would 比 will 更婉转,客气。

It's hot. Will you open the windows? 天气太热了,你能打开窗户吗?

12、Shall, should表示命令,警告,允诺,征求,劝告,建议,惊奇。

Will you help me to work it out? 你能帮我解这道题吗?

Would you like some coffee? 给你来点咖啡怎样?

You should hand in the exercise book. 你应该交作业本儿了。

This should be no problem. 这应该没问题。

Shall we go now. 我们现在可以走了吗?

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Why should I meet him? 为什么我要见他?

13、have to,不得不,必须,表示客观条件只能如此, 而must 则表示主观思想必须。

I have to go now. 我现在得走了。

I have to cook for my child. 我得给孩子做饭。

You must be here on time next time. 你下次一定要按时来。

We must go to get the timetable ourselves. 我们一定要自己去拿时刻表。

用 must ,mustn’t, may, may not, can 或can’t 填空

This is Mrs Lee’s first trip to Canada, She ____________ only speak a little French and a little

English, Today, she will go to the Canadian Embassy to get visas for the family, She knows she

__________ forget to take all the family’s passports with her or they will not get visas. She

___________ get there before the embassy close.

David has just bought three pairs of skis. He is trying, but he ________________ carry them all

at the same time, He wants to take a taxi home, but the taxi won’t stop for him. He ________ find

a taxi queue if he wants a taxi.

一、选择填空

1. ( ) May I borrow your books?-- Yes, you _______ .

A. may B. can C. must D. need

2. ( ) I’m getting fatter and fatter now. What should I do, doctor?

--You’d better eat _______ food and take__________ exercise.

A. less; less B. more; more C. more; less D. less; more

3. ( ) The TV is too noisy, Mum! --Sorry my dear, I will _______ at once.

A. turn it down B. turn it on C. turn it off D. turn it up

4. ( ) Do you know _______ ?

A. whose book is this B. whose book this is

C. this book is whose D. who’s book is

5. ( ) I ______ my bag in my classroom yesterday afternoon.

A. forget B. forgot C. will leave D. left

6. ( ) They _____ to there at five yesterday afternoon.

A. reached B. arrived C. got D. arrived in

7. ( ) How much _____ the shoes?

--Five dollars _____ enough.

A. is; is B. is; are C. are; are D. are; is

8. ( ) Look at that man over there. He ______be our teacher

Mr. Luo?

--He ______ be him. He has gone to Beijing.

A. May; must B. Can; may C. Can; can’t D. May ; can’t

9.( )How is your life? --Although that I live _______ ,but I don’t feel _______ .

A. alone; alone B. lonely; lonely; C .alone; lonely D. lonely; alone

10.( ) _____ climb that tall tree?

A. Do you need B. Are you need C. Need you D. Need you to

11.( )Some warm-hearted animals ___ hibernate (冬眠)

A. needn’t B. does not need to C .needn’t to D. don’t need

12.( )____I go and apologize to my teacher for my mistake?

A. Should B. Need C. Can D. May

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14.( ) May I stop my car here, sir? --No, you _____ .

A. may not B. mustn’t C. can’t D. needn’t

15.( ) ______ I change the bulb now? --No, you may not. You _____ switch off the

electricity.

A. Can; need B. May; must C. Must; must D. Can; must

16.( )John____ come to see us tonight, but he isn’t very sure yet.

A. may B. can C. has to D. must

18.( )Shall I tell Tom something about it? --No, you _____ .

A. mustn’t B. needn’t C. can’t D. won’t

19.( )My mother is ill. So I _____ look after my little brother.

A. must B. may C. have to D. should

20.( ) I’m afraid it ____rain tonight.

A. can B. could C. may be D. might

练习

一、选择填空:

( )1. Last Sunday , my cousin took me to the zoo. There we saw _______ elephant. ______elephant was from Africa .

A. a.........the B. an........an C. an........the D. /

( )2. —Have you heard of the accident about Lucy and her friend ?

—Accident ? No, I haven’t. Tell me about ____________

A. it B. her C. him D. them

( )4. Water comes to our flats __________ pipes under the streets.

A. across B. along C. through D. over

( )7. You __________ be absent-minded in class.

A. munts’t B. won’t C. may not D. needn’t

( )8. ______you show me the way to the nearest underground station ?

A. may B. must C. could D should

( )9. Electricity __________ our life easier, We must save it.

A. make B. makes C. is making D. made

( )10. Jason put some rice in the pot and __________ the rice cooker .

A. opened B. switched on C. closed D. turned off ( )11. Don’t wait for

me for dinner tonight, I _________ back until 10 o’clock.

A. don’t come B. am not coming C. won’t come D. did’t come ( )12. “ I don’t think it is a good way to work out the problem.” replied Mr White. The word replied probably

means _________.

A. said B. answered C. asked D. thought

二、用单词的适当形式填空:

1 Susan, is this dictionary ____________ or Tommy’s ( you ) ?

2 Can you tell me what _________________ is like ? (electric )

3 It’s _____________ of you to buy such a dress. It looks so ugly (fool )

4 The remote control doesn’t work now. I think we need to change the two _________ in it

( battery )

5 Your room is dirty and _____________. I think you know what you need to do now ( tidy )

三、完形填空

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Electricity

Electricity is very dangerous. (1) , it is also very (2) in a way.

We (3) see electricity, but we can (4) it into different (5) of energy, (6) movement energy,

heat energy, sound energy, light energy and so (7) .

Electricity is a very great (8) . It changes our lives. (9) it, our lives will be very (10).

1. ( ) A. Or B. And C. But D. So

2. ( ) A. hardly B. useful C. beautiful D. difficult

3. ( ) A. can B. may C. may not D. can’t

4. ( ) A. put B. get C. turn D. make

5. ( ) A. form B .from C froms D. forms

6. ( ) A. likes B. such as C. for example D. seem

7. ( ) C. on D. into

8. ( ) A. things B. invention C. job D. discoverment

9. ( ) A. Own B .With C. No D. Without

10.( ) A. easy B. beautiful C. difficult D. simple

四、阅读理解

A electric machine

Jane’s mother was about seventy, so Jane and her husband wanted to give the old lady a nice

present for her birthday. She liked drinking tea, so Jane bought a small electric machine for her. It

could make tea and then wake people up in the morning.

She brought it to her mother on her birthday, and showed her how to use it. Before you go to bed,

put tea and water in it,” she explained to her mother,” and don’t forget to turn on the electricity.

When you wake up in the morning, your tea will be ready.” After a few days, the old lady

telephoned her daughter and said,” Jane, there is one thing I don’t understand. Why do I have to

go to bed to make tea? Can’t I have tea in the afternoon or in the evening?”

1.( )On the birthday, Jane’s mother got a machine to ______ .

A. make tea for her B. buy tea for her C. wake her up in the morning D. both A and C

2.( ) _________ how to use the machine.

A Jane told her husband B. Jane told her mother

C. Jane’s husband told her mother D. Jane’s mother knew

3.( )The machine can be used ___________ .

A. before going to bed B. only in the morning

C. both in the afternoon and evening D. at any time

4.( )We need _______ to use an electric machine.

A. time B. a telephone C. electricity D. tea

5.( )From the passage we know that ___________ .

A .Jane is beautiful B. Jane his husband are silly.

C. Jane is a good daughter D. Jane’s mother is hard-working

补充

情态动词

一、can的用法:

1. (表示能力、功能)能,会

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The classroom can seat thirty students. 这教室能坐三十位学生。

June can drive now. 琼现在会开车了。

2. (表示可能性)可能,可能会

I think the work can be completed ahead of time. 我认为这项工作能提前完成。

3. (表示允许、请求)可以

You can't take the book out of the room. 你不可以将这本书拿出室外。

Can I use your pen? 我可以用一下你的笔吗?

4. (表示命令)必须

If you won't keep quiet you can get out. 你如不保持安静,就请你走。

5. (表示偶然发生的可能性)有时会

It can be quite windy there, especially in spring. 那里有时容易刮风,特别在春季。

6. (表示惊讶)究竟;竟至于

What can it possibly be? 到底那是怎么一回事?

二、could的用法

can的过去式;

(用于虚拟语气,表示与事实相反的设想)能;可以;

(表示可能性)可能;

(用于婉转语气)能,可以

三、may的用法

1.表示请求和允许,意思是:可以

He may come if he likes. 如果他想来,可以来

2.表示祝愿,意思是:祝…,(但愿)。

May the friendship between our two peoples last forever. 祝两国人民的友谊万古长青。

3.表示推测,意思是:可能(会),或许(会)。

It may rain this evening. You'd better take an umbrella. 今晚可能要下雨,你最好带上雨伞。

四、must的用法

1.表“必须”。

You must talk to them about their study.你必须同他们谈谈关于他们学习的事。

2.在否定结构中表不许。

You mustn't leave here.你不能离开这儿。

3.表坚定的建议。

You must come and see us as soon as you get to Shanghai.一到上海你得马上来看我们。

4.表推测,暗含有很大的可能性,用在肯定句。

He must be ill. He looks so pale.他肯定是病了。他的脸色那么苍白。

注意: may 暗含的可能性较小。must 暗含的可能性较大。否定的猜测用can't

The baby can't be ill. He is so active.那宝宝不大可能是病了。他那么活跃。

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unit6-Electricity

五、might的用法

might表示的可能性太小,没有足够的说服力去说服别人。

can, could 之间的区别,和 may,might 之间的区别在于,虚拟句和过去时态用后者,表示的可能性比原词小,但大部分时候2者可以互换,不会产生歧义或者对表述造成干扰。

六、should的用法

1. should 作为助动词 shall 的过去式,可以在间接引语中与第一人称主语搭配,表示过去将来时间。

2. should 作为情态动词,通常用来表示现在或将来的责任或义务,译作“应该”、“应当”,这时它可以和 ought to, be supposed to 互换使用。例如:

You should (= are supposed to ) complete your test in time.

你们应该按时做完你们的实验。

3. should 作为情态动词,可以用在条件状语从句中,表示语气较强的假设,译作“万一”、“竟然”,这时也可将 should 置于从句之首,即将 should 放在主语前面,而省略从属连词 if.

If it should rain tomorrow, I wouldn't go. (= Should it rain tomorrow, I wouldn't go.)

万一明天天下雨,我就不去了。

七、 would的用法

1. would是will的过去式,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?

2.主语+would like to~

表示“想要……”的意思上,与…want to~意思一 样,但用此句型较客气。

I want to ask you a question.

3.最基本的虚拟语气句型:

主句用would/ should/ could/ might +动词原形。

八. ought to的用法

ought to 是一个可以加上to 的情态动词其意思与should是一样的,但是ought to 不能用于虚拟语气中表示推测,而should可以

ought to与should意思接近,大多数情况下二者可以互换,但是should谈的是自己的主观看法,ought to则更多反映客观情况,在谈到法律、义务和规定时使用。

如: We should/ought to help each other and learn from each other in our work.

She is your mother, so you ought to support her.

We ought to go and see Mary tomorrow, but I don’t think we will.

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