2016-2017年高考一輪英語復(fù)習(xí)情態(tài)動(dòng)詞精講精練
情態(tài)動(dòng)詞本身有一定的詞義，表示語氣的單詞。育路網(wǎng)整理了情態(tài)動(dòng)詞精講精練，請(qǐng)考生及時(shí)學(xué)習(xí)。
一.概念:
情態(tài)動(dòng)詞是表示能力,義務(wù),必須,猜測等說話人的語氣或情態(tài)的動(dòng)詞.
二.相關(guān)知識(shí)點(diǎn)精講:
1.can
1)表能力
can表能力時(shí)意味著憑體力或腦力或技術(shù)等可以無甚阻力地去做某事。
I can climb this pole. 我能爬這根桿子。
He is only four , but he can read. 他只有4歲，但已認(rèn)得字了。
Fire can't destroy gold. 火燒不毀金子。
因?yàn)閏an不能和其他助動(dòng)詞連用，所以表示將來式時(shí)用will be able to
You will be able to skate after you have practiced it two or three times.
你練習(xí)兩三次后就會(huì)溜冰了。
2)表可能性
多用于否定與疑問結(jié)構(gòu)中，但也可用在肯定句中。
Can the news be true? 這消息可能是真的嗎?
It can't be true. 它不可能是真的。
What can he possibly mean? 他可能是什么意思?
can 用在肯定句中表示理論上的可能性(一時(shí)的可能)。
A horse in the center of London can cost a lot of money.
Attending the ball can be very exciting.
The road can be blocked. 這條路可能會(huì)不通的。
may 在肯定句中表示現(xiàn)實(shí)的可能性。
The road may be blocked. 這條路可能不通了。
3)表示允許(和may意思相近)常見于口語。
Can (May) I come in ? 我能進(jìn)來嗎?
Can I smoke here ? 我可以在這里抽煙嗎?
2.could的用法
1)表過去的可能和許可，(多用于間接引語中)
At that time we thought the story could not be true.
那時(shí)我們認(rèn)為所說的事不可能是真的。
Father said I could swim in the river.
爸爸說我可以在河里游泳。
2)表過去的能力
I could swim when I was only six.
我剛六歲就能游泳。
Could在肯定句中表示過去的能力時(shí)，常表抽象的一般的能力。
He could be very naughty when he was a child.
他小時(shí)候會(huì)是很頑皮的。
3)表"允許"。可表示委婉客氣的提出問題或陳述看法
Could I use your bike?
Yes, you can.
他會(huì)記得那時(shí)嗎?
I'm afraid I couldn't give you an answer today.
恐怕我今天不能回答你。
The teacher said you could go to the store for sweets.
老師說你可以去商店買糖。
3)Could/can+have done 結(jié)構(gòu)表示對(duì)過去發(fā)生的事情的"懷疑"或"不肯定"。 could 加完成式還用于肯定句時(shí)一般表過去可能完成而卻未完成的動(dòng)作。
Can they have won the basketball match?
他們贏了那場籃球賽嗎?
What you referred to just now can have made her very sad.
你剛剛所談到的可能令他很傷心。
You could have completed the task a little earlier.
你本來能早點(diǎn)完成任務(wù)的。(但事實(shí)上并沒有提前完成任務(wù))
I could have passed my examination easily but I made too many stupid mistakes.
我本可以輕易通過考試，但我犯了太多不該犯的錯(cuò)誤。
如表具體做某一件事的能力時(shí)，則須用 be able to .
He was able to translate the article without a dictionary.
他可以不用詞典翻譯那篇文章。
Can表示一貫的能力 ，be able to表示客觀能力和通過努力可以達(dá)到的能力
I can't swim. But I am sure I will be able to swim through more practicing.
The fire spread through the hotel, but everyone was able to get out
When the boat sank he was able to swim to the bank
3.may 的用法
1)表示請(qǐng)求、可以、允許。
You may drive the tractor. 你可以開那臺(tái)拖拉機(jī)。
2)當(dāng)回答由may 引起的問題時(shí)，否定答語要用must not,表示"不許可"、"不應(yīng)該"、"不行"。
May I come in?
Yes, you may.
No,you can't
No, you may not .
No ,you mustn't
No ,you'd better not.
3) may /might 推測性用法 可能
He may be right.
He may not come today (可能不)
He may /might come tomorrow.
, 注意: 1只用于肯定和否定句中,不用于疑問句中。
2 might 比may可能性更小
He might get a job.
He may get a job.
情態(tài)動(dòng)詞精講精練的全部內(nèi)容就是這些，育路網(wǎng)希望對(duì)考生復(fù)習(xí)英語有幫助。
(責(zé)任編輯：郭峰)
分享“2016-2017年高考一輪英語復(fù)習(xí)情態(tài)動(dòng)詞精講精練”到：
