戴氏問(wèn)答:情態(tài)動(dòng)詞的用法歸納 情態(tài)動(dòng)詞有哪些 英
了解培訓(xùn)機(jī)構(gòu)口碑和知名度 現(xiàn)在培訓(xùn)機(jī)構(gòu)五花八門,所以在給孩子選擇培訓(xùn)班時(shí)要觀察仔細(xì)。先要了解培訓(xùn)班的
了解培訓(xùn)機(jī)構(gòu)口碑和知名度 現(xiàn)在培訓(xùn)機(jī)構(gòu)五花八門,所以在給孩子選擇培訓(xùn)班時(shí)要觀察仔細(xì)。先要了解培訓(xùn)班的口碑和知名度,可以像周邊的人或者家長(zhǎng)群打聽(tīng),這個(gè)機(jī)構(gòu)怎么樣。了解清楚后,對(duì)孩子確實(shí)有利,再給孩子報(bào)一個(gè)適合的班級(jí)。我們要
了解培訓(xùn)機(jī)構(gòu)口碑和知名度 現(xiàn)在培訓(xùn)機(jī)構(gòu)五花八門,所以在給孩子選擇培訓(xùn)班時(shí)要觀察仔細(xì)。先要了解培訓(xùn)班的口碑和知名度,可以像周邊的人或者家長(zhǎng)群打聽(tīng),這個(gè)機(jī)構(gòu)怎么樣。了解清楚后,對(duì)孩子確實(shí)有利,再給孩子報(bào)一個(gè)適合的班級(jí)。我們要盡量選擇大的且有知名度的培訓(xùn)機(jī)構(gòu),同時(shí)還要了解培訓(xùn)機(jī)構(gòu)大部分學(xué)生的學(xué)習(xí)變化情況。因?yàn)檫@些學(xué)生成績(jī)的變化是最你可以直觀參考的數(shù)據(jù)。不能圖便宜給孩子報(bào)一個(gè)班。要知道很多小機(jī)構(gòu)的師資和教學(xué)質(zhì)量是沒(méi)有什么保障的。
情態(tài)動(dòng)詞的用法要點(diǎn) 一.can和could 情態(tài)動(dòng)詞|用法|例句| can/could|示意能力|“I don’t think Mike can type.” |“Yes, he can.”|I can speak fluent English now , but I couldn’t last year.| 在一定句中,示意客觀可能性,并不...
情態(tài)動(dòng)詞的用法歸納情態(tài)動(dòng)詞有can,may,must,have to,shall,will,dare,need,ought to等。情態(tài)動(dòng)詞無(wú)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(yǔ)。
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(lè)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(wèn)句中還可用could,might取代,不是已往式,只是語(yǔ)氣更委婉,不能用于一定句和答語(yǔ)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(wèn)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(yǔ)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(yǔ)中更常見(jiàn)。
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(wèn)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(wèn)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(yǔ)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(wèn)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.
need 作情態(tài)動(dòng)詞用時(shí), 常用于疑問(wèn)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(wèn)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(jiàn)。
What shall we do this evening?
shall 用于第二、三人稱,示意語(yǔ)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(méi)有“現(xiàn)已無(wú)此習(xí)慣”的寄義。
首先,我總是把書的概念弄得很熟,而且充分理解。比如,高一主要是函數(shù),函數(shù)是基礎(chǔ)。函數(shù)概念,奇偶性,初
首先,我總是把書的概念弄得很熟,而且充分理解。比如,高一主要是函數(shù),函數(shù)是基礎(chǔ)。函數(shù)概念,奇偶性,初等函數(shù)等。 第二,書上的例題我很重視,總是研究。例題都是出示了基本的應(yīng)用方法和解題思維。主要 第三,做習(xí)題。數(shù)學(xué)習(xí)題的練習(xí)
口碑還挺不錯(cuò)的,課程涵蓋了小學(xué)、初中、高中,課程管理體系很不錯(cuò),全程跟蹤式教學(xué),家長(zhǎng)會(huì)很省心。還開(kāi)設(shè)有一對(duì)一個(gè)性化小班、幾人精品小班和名師中班,可以根據(jù)學(xué)習(xí)需要自行選擇,也不用擔(dān)心報(bào)班時(shí)間的問(wèn)題,因?yàn)樗麄兪菨L動(dòng)開(kāi)班,學(xué)生可以隨到隨學(xué),根據(jù)自身情況選擇班級(jí)上課。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(yǔ)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(wèn)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(yǔ)氣;在疑問(wèn)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(yǔ)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(wèn)句中,沒(méi)有虛擬語(yǔ)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(wèn)、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(méi)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??梢耘cought 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.
情態(tài)動(dòng)詞的特點(diǎn)是什么情態(tài)動(dòng)詞無(wú)人稱和數(shù)的轉(zhuǎn)變,情態(tài)動(dòng)詞后面跟的動(dòng)詞須用真相,否認(rèn)式組成是在情態(tài)動(dòng)詞后面加 "not"。個(gè)體情態(tài)動(dòng)詞有現(xiàn)在式和已往式兩種形式,已往式用來(lái)表達(dá)加倍虛心,委婉的語(yǔ)氣,時(shí)態(tài)性不強(qiáng),可用于已往,現(xiàn)在或未來(lái)。情態(tài)動(dòng)詞屬非及物動(dòng)詞,故沒(méi)有被動(dòng)語(yǔ)態(tài)。
He could be here soon. 他很快就來(lái)。
We can't carry the heavy box. 我們搬不動(dòng)那箱子。
I'm sorry I can't help you. 對(duì)不起,我?guī)筒簧夏恪?/p>
基本助動(dòng)詞與情態(tài)助動(dòng)詞最主要的區(qū)別之一是:基本助動(dòng)詞自己沒(méi)有詞義,而情態(tài)助動(dòng)詞則有自己的詞義,能示意語(yǔ)言人對(duì)有關(guān)動(dòng)作或狀態(tài)的看法,或示意主觀設(shè)想:
What have you been doing since? (組成完成舉行體,自己無(wú)詞義)
你一直在干什么?
I am afraid I must be going. (一定要)
生怕我必須走了
You may have read some account of the matter. (或許已經(jīng))
你可能已經(jīng)讀過(guò)關(guān)于這件事的一些報(bào)道
除此之外,情態(tài)助動(dòng)詞尚有如下詞法和句法特征:
除ought和used和have to以外,其他情態(tài)動(dòng)詞后面只能接不帶to的不定式。若是我們把ought to和used to看做是牢靠詞組的話,那么,所有情態(tài)動(dòng)詞無(wú)一破例地只能接不帶to的不定式:
We used to grow beautiful roses.我們已往經(jīng)常種這種漂亮的玫瑰花
I asked if he would come and repair my television set.我問(wèn)他是否來(lái)修我的電視機(jī)
情態(tài)助動(dòng)詞在限制動(dòng)詞詞組總是位居第一:
They need not have been punished so severely.
他們不需要云云嚴(yán)肅的責(zé)罰
情態(tài)助動(dòng)詞用于第三人稱單數(shù)現(xiàn)在式的時(shí)刻,沒(méi)有詞形轉(zhuǎn)變,即其詞尾無(wú)-s形式:
She dare not say what she thinks.
她不敢說(shuō)她是怎么想的
情態(tài)動(dòng)詞沒(méi)有非限制形式,即沒(méi)有不定式和分詞形式,也沒(méi)有響應(yīng)的動(dòng)名詞:
Still,she needn't have run away.
不外,她不必跑了
情態(tài)助動(dòng)詞的“時(shí)”的形式并不是時(shí)間區(qū)其余主要標(biāo)志。在不少場(chǎng)所,情態(tài)助動(dòng)詞的現(xiàn)在時(shí)和已往時(shí)形式都可以示意現(xiàn)在、已往或未來(lái)時(shí)間:
Would you mind very much if I ask you to do something?
你會(huì)很介意若是我讓你做什么?
She told him he ought not to have done it.
她告訴他他不應(yīng)該這樣做
情態(tài)助動(dòng)詞之間是相互傾軋的,即在一個(gè)限制動(dòng)
詞詞組中只能泛起一個(gè)情態(tài)助動(dòng)詞,但有時(shí)卻可以與have和be基本助動(dòng)詞連用:
You should have washed the wound.
你應(yīng)該已經(jīng)洗好了傷口
Well,you shouldn't be reading a novel.
嗯,你不應(yīng)該讀一本小說(shuō)
情態(tài)動(dòng)詞must一樣平時(shí)疑問(wèn)句否認(rèn)回覆要用needn't而不是mustn't。
Must I read books every day、我必須天天念書
No,you needn't . 不,你不必
英語(yǔ)中的情態(tài)動(dòng)詞有哪些戴氏教育/http://certifiedhvacservices.com