be able to的時態(tài)用法?
be able to什么意思
be able to的意思是:能夠;(因具有品質(zhì)或技能)能做到…的;(因有足夠的自由、權(quán)力、時間、財(cái)力等而)可以…的。
be able to指通過努力而獲得的能力,強(qiáng)調(diào)的是一種結(jié)果,可以用于各種時態(tài),后面只接不定式的主動形式,不接表示被動的不定式,也不可用無生命的名詞作主語。be able to意為(因具有品質(zhì)或技能)能做到的;(因有足夠的.自由、權(quán)力、時間、財(cái)力等而)可以的,能夠的。
be able to 的時態(tài):
1.一般現(xiàn)在時:am/is/are able to
I am able to run very fast.我能夠跑得非常快。
2.一般過去時:was/were able to
He was able to make lots of friends when he was young.當(dāng)他年輕的時候,他能夠交很多朋友。
3.一般將來時:will be able to
They will be able to finish the work soon.他們很快就能夠完成工作。
4.現(xiàn)在完成時:have/has been able to
I wonder whether they have been able to find jobs.我想知道他們是否(已)能夠找到工作。
辨析be able to 和can的區(qū)別
be able to 和can的區(qū)別:
1、當(dāng)它們表示能力的時候,是一樣的。
2、 can只有兩種時態(tài),即can 和could, 而be able to 有多種時態(tài),如was/were able to, will/shall be able to, have/has been able to等。
3、表示過去通過努力終于做成了某事要用be able to,而不能用can。
4、can能表猜測,be able to不能。can的這種用法主要用于疑問句和否定句。
5、can 可以表 “允許”, 與may可以互換, 此時不能用be able to 代替。
拓展資料
be able to
1、We may be able to design a cour to suit your particular needs
我們或許可以專門設(shè)計(jì)一門課程以滿足你的特殊需求。
2、He may be able to leave hospital early next week.
他下周初也許就可以出院了。
3、Scientists would soon be able to manipulate human genes to control the ageing process.
科學(xué)家們很快將能通過操控人類基因來控制衰老過程。
4、They'll be able to furnish you with the rest of the details.
他們將可向你提供其余的細(xì)節(jié)。
5、One will never be able to understand why the political issues can acquire such force
人們永遠(yuǎn)也不會明白為什么這些政治問題會有如此大的影響力。
6、They should be able to find you the best package to suit your needs.
他們應(yīng)該能提供滿足你需要的最佳套餐。
can
1、You can imagine he was terribly upt
你能想象得出來,他當(dāng)時心里亂得要命。
2、How can you complain about higher taxes?
你怎么能抱怨稅費(fèi)的提高呢?
3、Several young men were kicking a tin can along the middle of the road.
幾個青年人踢著一個錫罐在路中間走著。
4、With another day's work in the can, Philip is happy to leave the open countryside and head for his London flat.
又干完了一天的活,菲利普滿心愉悅地離開了廣袤的鄉(xiāng)村,前往自己位于倫敦的公寓。
5、Luckily, iron can be reworked and mistakes don't have to be thrown away
所幸的是,鐵可以再加工,次品、廢品不必被扔掉。
6、A central rervation number operated by the resort can direct you to accommodations that best suit your needs
該旅游勝地開設(shè)的預(yù)約中心電話可指引你找到最適合你的住處。
7、A lected list of some of tho stocking a comprehensive range can be found in Chapter 8.
第8章選列了一些備貨品種齊全的商家
be able to中文什么意思
be able to什么意思
be able to的用法有哪些
be able to的含義及用法
be able to意為(因具有品質(zhì)或技能)能做到…的;(因有足夠的.自由、權(quán)力、時間、財(cái)力等而)可以…的,能夠…的。
1、be able to是指通過努力而獲得的能力,強(qiáng)調(diào)一種結(jié)果。
例句:She can sing the song in English.
她能用英語唱這首歌。
He will be able to sing this song in English in a few minutes, too.
幾小時之后,他也能用英語唱這首歌。
Luckily, he was able to escape from the big fire in the end.
幸運(yùn)的是,他終于逃出了大火。
If he got here a few hours earlier, I could save him.
要是他早幾小時來,我還能救他。
2、be able to可以有各種時態(tài),后面只接不定式的主動形式,不接表示被動的不定式,也不可用無生命的名詞作主語。
例句:I could help you last night, but you didn’t come.
昨天晚上我能幫你,而你又沒來。
Can you e it there?
你能看見它在那兒嗎?
He will be able to help you.
他能幫你的忙。
The DVD can be rented from your local store.
這DVD可在你們當(dāng)?shù)氐纳痰曜饨琛?/p>
You’ll be able to get a taxi outside the station.
在車站外可搭乘出租車。
I haven’t been able to get much work done today.
我今天未能干多少工作。
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