after
介詞
1.在...以后
After graduation he went abroad. 畢業(yè)后他去了國(guó)外.
At half after ten it began to rain. 在十點(diǎn)半下起雨來(lái).
2.在...后面;隨...之后
After you with the paper, please. 請(qǐng)您看完報(bào)紙后給我.
She entered the hall after her mother. 她跟隨在她母親之后進(jìn)入廳內(nèi).
3.低于;次于
A captain comes after a major. 上尉軍銜低于少校.
4.鑒于,由于
After what had happened he could not continue to work there. 鑒于所發(fā)生的事情,他不可能繼續(xù)在那里工作下去了.
5.仿照,模仿
This is a painting after Picasso. 這是一幅仿畢加索的畫(huà).
6.依照;按照...的名字
The kid was named after his grandfather. 這孩子是以他祖父的名字命名的.
7.盡管
After all our efforts, the experiment failed. 盡管我們做了努力,試驗(yàn)還是失敗了.
8.搜尋,尋找
Mary is after a better job. 瑪麗在尋找一個(gè)更好的工作.
連詞
1.在...之后
I will tell you after they leave. 他們走后我再告訴你.
副詞
1.以后,之后
They arrived shortly after. 不久以后他們抵達(dá)了.
2.在后面,隨后
Tom went on Monday, and Mary left the day after. 湯姆星期一走的,瑪麗第二天就離開(kāi)了.
形容詞
1.以后的
His health was declining in after years. 在以后的歲月,他的健康不斷衰退.
2.后部的
A few passengers would have a stroll on the after deck before the evening meal. 幾位乘客將在晚飯前到后甲板上散步.
as
副詞
1.跟...一樣地,同樣地
Sam is as rich as Alexander. 山姆像亞歷山大一樣富有.
2.如同;例如
Such animals as foxes and squirrels have bushy tails. 有些動(dòng)物,如狐和松鼠,有蓬松的尾巴.
介詞
1.作為,以...的身份
She works as an interpreter in that company. 她在該公司里擔(dān)任翻譯員.
2.當(dāng)作
She didn't think much of him as a painter. 她對(duì)他作為一位畫(huà)家評(píng)價(jià)不高.
3.像;如同
The old woman was dressed as a young lady. 這位老婦人打扮得像一位年輕人.
連詞
1.像...一樣;依照;像
You ought to do as Paul tells you. 你應(yīng)按照保羅吩咐的做.
The work is not so difficult as you imagine. 這工作不像你想像的那么困難.
2.當(dāng)...時(shí)
As she left the room she remembered that book. 她離開(kāi)房間時(shí)想起了那本書(shū).
3.隨著
As the sun rose the fog dispersed. 太陽(yáng)一出來(lái),霧隨之消失.
4.因?yàn)?
We didn't know what to do as we were just visiting there. 我們不知道該怎么辦,因?yàn)楫?dāng)時(shí)我們僅僅在那里作訪問(wèn).
5.雖然
Tired as he was, he sat up late. 他雖然疲倦,可仍然很晚才睡.
when
副詞
1.(用作疑問(wèn)副詞)什么時(shí)候,何時(shí)
I'd like to know when they'll let him out. 我想知道他們什么時(shí)候放他.
When did you last see Margaret? 你上一次見(jiàn)到瑪格麗特是什么時(shí)候?
(2.用作關(guān)系副詞,引導(dǎo)關(guān)系從句)當(dāng)...時(shí)
There were times when I didn't know what to do. 有些時(shí)候我不知道該怎么辦才好.
連詞
1.當(dāng)...時(shí)
John got engaged to her when travelling last winter. 去年冬天旅行時(shí),約翰與她訂了婚.
Don't get excited when you talk. 你說(shuō)話時(shí)別激動(dòng).
2.既然,考慮到
How can he get the promotion when his boss dislikes him? 既然上司不喜歡他,那他怎么會(huì)獲得提升呢?
3.雖然,然而
I had only fifteen dollars on me when the book I wanted cost twenty. 我身上只帶了十五元錢,可是我想買的那本書(shū)定價(jià)二十元.
4.在那時(shí),然后
代詞
1.什么時(shí)候,那時(shí)
Since when has she taught here? 她從什么時(shí)候開(kāi)始在這兒教書(shū)的?
名詞
1.(事件發(fā)生的)時(shí)間
before
介詞
1.在...以前
Only two days remained before the examination. 考前只剩下兩天了.
2.(指順序、重要性等)在...之前,先于
Your name comes before mine. 你的名字在我之前.
Pride comes before a fall. 驕必?cái)?
3.由...考慮中
We will put the matter before the committee. 我將把此事提交委員會(huì)考慮.
4.在...前面;在...面前
She said she had never spoken before an audience. 她說(shuō)她從未在大庭廣眾講演過(guò).
副詞
1.較早
Come at two o'clock, not before. 兩點(diǎn)鐘來(lái),不必再早了.
2.以前;曾經(jīng)
He was never late before. 過(guò)去他從不遲到.
Have you two met before? 你們兩人以前見(jiàn)過(guò)面嗎?
3.在前;向前
Several soldiers went before to scout. 數(shù)名士兵在前面探路.
連詞
1.在...以前
Check it carefully before you hand it in. 交來(lái)之前仔細(xì)核對(duì)一下.
2.與其...寧可
I'd die before I'd tell. 我寧死也決不會(huì)說(shuō)出來(lái).
3.否則,要不然
Get out before I call the police. 滾開(kāi),否則我叫警察.
since
副詞
1.此后;從那時(shí)到現(xiàn)在
She left school three years ago and has worked as a nurse ever since. 她三年前畢業(yè),從那時(shí)起便一直當(dāng)護(hù)士.
2.之前,以前
介詞
1.(常用于現(xiàn)在完成時(shí)或過(guò)去完成時(shí))自...以來(lái),從...至今
I haven't heard from him since last year. 我自去年以來(lái)未曾收到過(guò)他的信.
連詞
1.(常用于現(xiàn)在完成時(shí)或過(guò)去完成時(shí))自...以來(lái),從...至今
It's been ten years since they married. 他們結(jié)婚到現(xiàn)在已經(jīng)十年了.
She has been living a hard life since her husband died. 她自從丈夫死后,一直過(guò)著艱苦的生活.
2.既然;因?yàn)?由于
He must have taken the book since it isn't here. 他一定是把書(shū)拿走了,因?yàn)闀?shū)已不在這里了.
Since it is so hot, let's go swimming. 既然天氣這么熱,我們?nèi)ビ斡景?