戴氏問答:英語中情態(tài)動(dòng)詞有哪些 都有哪些用法 英
高三數(shù)學(xué)補(bǔ)習(xí):高中數(shù)學(xué)補(bǔ)習(xí)班哪個(gè)比較好 高中跟初中不同,高中的知識(shí)點(diǎn)很多,而且延伸也很多。不能松懈。我
高三數(shù)學(xué)補(bǔ)習(xí):高中數(shù)學(xué)補(bǔ)習(xí)班哪個(gè)比較好 高中跟初中不同,高中的知識(shí)點(diǎn)很多,而且延伸也很多。不能松懈。我高中數(shù)學(xué)學(xué)的還不錯(cuò)??偸且话偃逡陨?。大多都是馬虎大意的失分。我的方法也很簡(jiǎn)單。希望對(duì)你有幫助。 高一的數(shù)學(xué)更偏向于頭
戴氏教育自主研發(fā)的“DSE”教學(xué)法經(jīng)過多年的發(fā)展,已經(jīng)形成了一套完整的教育體系。該教學(xué)法至始至終都貫穿戴氏教育的整個(gè)教學(xué)過程,效果突出,備受推崇。蘇州中譯翻譯有限公司是經(jīng)政府特批注冊(cè)的專業(yè)翻譯服務(wù)機(jī)構(gòu),常年為社會(huì)整體、政府機(jī)關(guān)、企事業(yè)單元提供跨行業(yè)、多語種、高水平的翻譯服務(wù)。擁有較強(qiáng)的綜合實(shí)力、堅(jiān)實(shí)的客戶基礎(chǔ)、高效的治理隊(duì)伍和履歷厚實(shí)的各領(lǐng)域?qū)I(yè)翻譯人才。中譯翻譯駐足于...
英語中情態(tài)動(dòng)詞有哪些英語中的情態(tài)動(dòng)詞是考試一定會(huì)考的一個(gè)知識(shí)點(diǎn),那么,英語中情態(tài)動(dòng)詞有哪些呢?下面和小編一起來看看吧!
英語中有哪些情態(tài)動(dòng)詞情態(tài)動(dòng)詞(Modal verbs)自己有一定的詞義,然則不能自力作謂語,只能和動(dòng)詞真相一起組成謂語。英語中的情態(tài)動(dòng)詞有十三個(gè):
may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to.
情態(tài)動(dòng)詞的語法特征
情態(tài)動(dòng)詞 不能單獨(dú)做謂語,除ought 和have 外,后面只能接不帶to 的不定式。
情態(tài)動(dòng)詞沒有人稱,數(shù)的轉(zhuǎn)變,但有些情態(tài)動(dòng)詞,如can、will也有一樣平時(shí)式和已往式的轉(zhuǎn)變。
情態(tài)動(dòng)詞的“時(shí)態(tài)”形式并不是時(shí)間區(qū)其余主要標(biāo)志,不少情形下,情態(tài)動(dòng)詞的現(xiàn)在式形式和已往式形式都可用來示意現(xiàn)在時(shí)間、已往時(shí)間和未來時(shí)間。情態(tài)動(dòng)詞屬不及物動(dòng)詞,故沒有被動(dòng)語態(tài)。
情態(tài)動(dòng)詞有哪些用法情態(tài)動(dòng)詞有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情態(tài)動(dòng)詞無人稱和數(shù)的轉(zhuǎn)變;不能單獨(dú)使用,必須與厥后的動(dòng)詞真相組成謂語。
一、can, could
示意能力(體力、知識(shí)、手藝)。
Can you lift this heavy box?(體力)
Mary can speak three languages.(知識(shí))
Can you skate?(手藝)
此時(shí)可用be able to取代。Can只有一樣平時(shí)現(xiàn)在時(shí)和一樣平時(shí)已往式;而be able to則有更多的時(shí)態(tài)。
I’ll not be able to come this afternoon.
當(dāng)示意“經(jīng)由起勁才得以做樂成某事”時(shí)應(yīng)用be able to,不能用Can。如:
He was able to go to the party yesterday evening in spite of the heavy rain.
示意請(qǐng)求和允許。
-----Can I go now?
----- Yes, you can. / No, you can’t.
此時(shí)可與may交流。在疑問句中還可用could,might取代,不是已往式,只是語氣更委婉,不能用于一定句和答語中。
---- Could I come to see you tomorrow?
---- Yes, you can. ( No, I’m afraid not. )
示意客觀可能性(客觀緣故原由形成的能力)。
They’ve changed the timetable, so we can go by bus instead.
This hall can hold people at least.
示意推測(cè)(驚訝、嫌疑、不信托的態(tài)度),用于疑問句、否認(rèn)句和嘆息句中。
Can this be true?
This can’t be done by him.
How can this be true?
二、may, might
示意請(qǐng)求和允許。might比 may語氣更委婉,而不是已往式。否認(rèn)回覆時(shí)可用can’t或mustn’t,示意“不能以,阻止”。
----Might/ May I smoke in this room?
---- No, you mustn’t.
---- May/Might I take this book out of the room?
---- Yes, you can. (No, you can’t / mustn’t. )
用May I...?征徇對(duì)方允許時(shí)對(duì)照正式和虛心,而用Can I...?在口語中更常見。
用于祈使句,示意祝愿。
May you succeed!
示意推測(cè)、可能性(不用于疑問句)。
might不是已往式,它所示意的可能性比may小。
He may /might be very busy now.
Your mother may /might not know the truth.
三、must, have to
示意必須、需要。
You must come in time.
在回覆引出的問句時(shí),若是是否認(rèn)的,不能用mustn’t(阻止,禁絕),而用needn’t, don’t have to(不必).
---- Must we hand in our exercise books today?
---- Yes, you must.
---- No, you don’t have to / you needn’t.
must是語言人的主旁觀法, 而have to則強(qiáng)調(diào)客觀需要。Must只有一樣平時(shí)現(xiàn)在時(shí), have to 有更多的時(shí)態(tài)形式。
he play isn’t interesting, I really must go now.
I had to work when I was your age.
示意推測(cè)、可能性(只用于一定的陳述句)
You’re Tom’s good friend, so you must know what he likes best.
Your mother must be waiting for you now.
四、dare, need
dare作情態(tài)動(dòng)詞用時(shí), 常用于疑問句、否認(rèn)句和條件從句中, 已往式形式為dared。
How dare you say I’m unfair?
He daren’t speak English before such a crowd, dare he?
If we dared not go there that day, we couldn’t get the beautiful flowers.
目前戴氏教育長(zhǎng)期開設(shè)“VIP一對(duì)一”、“精品小班”,為不同學(xué)習(xí)需求的同學(xué),制定個(gè)性課程,滾動(dòng)開班。 初中
目前戴氏教育長(zhǎng)期開設(shè)“VIP一對(duì)一”、“精品小班”,為不同學(xué)習(xí)需求的同學(xué),制定個(gè)性課程,滾動(dòng)開班。 初中數(shù)學(xué)和高中數(shù)學(xué)的區(qū)別 高中數(shù)學(xué)內(nèi)容抽象性、理論性更強(qiáng),尤其是在高一代數(shù)中,首先碰著的就是理論性很強(qiáng)的函數(shù),使一些初中數(shù)學(xué)
學(xué)校的綜合練習(xí)的內(nèi)容和氛圍,以及對(duì)你掌握知識(shí)的檢驗(yàn),是一個(gè)人在校外得不到的.學(xué)習(xí)主要靠自己看書,做題,重要的是不斷總結(jié),思考,上課專心聽講,就夠了.如果想彌補(bǔ)知識(shí)上的漏洞或解決知識(shí)中的某類問題,可以適當(dāng)找有經(jīng)驗(yàn)的家教,重點(diǎn)解決.不宜完全離開學(xué)校.即使半年沒上學(xué)的藝術(shù)生,三月份回來,我也鼓勵(lì)他們?cè)谛W(xué)習(xí),自己時(shí)間上多付出.need 作情態(tài)動(dòng)詞用時(shí), 常用于疑問句、否認(rèn)句。在一定句中一樣平時(shí)用must, have to, ought to, should取代。
You needn’t come so early.
---- Need I finish the work today?
---- Yes, you must. / No, you needn’t.
dare和 need作實(shí)義動(dòng)詞用時(shí), 有人稱、時(shí)態(tài)和數(shù)的轉(zhuǎn)變。在一定句中,dare后面常接帶to的不定式。在疑問句和否認(rèn)句中,dare后面可接帶to或不帶to的不定式。而need后面只能接帶to的不定式。
I dare to swim across this river.
He doesn’t dare (to) answer.
He needs to finish his homework today.
五、shall, should
shall 用于第一人稱,征求對(duì)方的意見。
What shall we do this evening?
shall 用于第二、三人稱,示意語言人給對(duì)方的下令、忠言、允諾或威脅。
You shall fail if you don’t work hard.(忠言)
He shall have the book when I finish it.(允諾)
He shall be punished.(威脅)
六、will, would
示意請(qǐng)求、建議等,would更委婉。
Will / Would you pass me the ball, please?
示意意志、愿望和刻意。
I will never do that again.
They asked him if he would go abroad.
would示意已往一再發(fā)生的動(dòng)作或某種傾向。would示意已往習(xí)慣時(shí)比used to正式,且沒有“現(xiàn)已無此習(xí)慣”的寄義。
During the vacation, he would visit me every other day.
The wound would not heal.
示意估量和意料。
It would be about ten o’clock when she left home.
七、should, ought to
should, ought to示意“應(yīng)該”,ought to示意義務(wù)或責(zé)任,比should語氣重。
I should help her because she is in trouble.
You ought to take care of the baby.
示意勸告、建媾和下令。should, ought to可通用,但在疑問句中常用should。
You should / ought to go to class right away.
Should I open the window?
示意推測(cè)
should , ought to (客觀推測(cè)), must(主觀推測(cè))。
He must be home by now. (斷定他已抵家)
He ought to/should be home by now.(不太一定)
This is where the oil must be.(直爽)
This is where the oil ought to/should be.(蘊(yùn)藉)
八、情態(tài)動(dòng)詞+不定式完成式(have done)
can / could + have done在一定句中示意“原本可以做而現(xiàn)實(shí)上能做某事”,是虛擬語氣;在疑問句或否認(rèn)句中示意對(duì)已往行為的嫌疑或紛歧定, 示意推測(cè)。
You could have done better, but you didn’t try your best. (虛擬語氣)
He can’t have been to that town.(推測(cè))
Can he have got the book?(推測(cè))
may / might +不定式完成式(have done)
示意對(duì)已往行為的推測(cè)。不能用于疑問句中,沒有虛擬語氣的用法。Might所示意的可能性比may小。
He may not have finished the work .
If we had taken the other road, we might have arrived earlier.
must +不定式完成式(have done)
用于一定句中,示意對(duì)已往行為的推測(cè)。意為“一定、想必”。其疑問、否認(rèn)形式用can,can’t取代。參看 can / could + have done示意推測(cè)。
You must have seen the film Titanic.
He must have been to Shanghai.
should +不定式完成式(have done)
用于一定句中,示意對(duì)已往行為的推測(cè)。
He should have finished the work by now。
示意“本應(yīng)該做而現(xiàn)實(shí)上沒有做某事”,其否認(rèn)式示意某種行為本不應(yīng)發(fā)生卻發(fā)生了。可以與ought to +不定式完成式(have done)交流。
You ought to / should have helped him. (but you didn’t.)
She shouldn’t have taken away my measuring tape, for I wanted to use it.
needn’t +不定式完成式(have done)
示意“原本不必做而現(xiàn)實(shí)上做了某事”。
You needn’t have watered the flowers, for it is going to rain.
will +不定式完成式(have done)
主要用于第二、三人稱,示意對(duì)已完成的動(dòng)作或事態(tài)的推測(cè)。
He will have arrived by now.
英語中常用的情態(tài)動(dòng)詞有哪些戴氏教育/http://certifiedhvacservices.com