since
英[sɪns]
美[sɪns]
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conj.
因为;既然;自从
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prep.
自从
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adv.
此后
CET4 TEM4 考 研 CET6
conj. (连词)
- 因为,由于,既然,鉴于
- 自...以来, 自从,从...至今
- 以后,在…以后的时间里
prep. (介词)
- 自...以来,从…以来,自…以后,从...至今,打...起
- [表示气愤,~ when] 何曾 ,什么时候
adv. (副词)
- 从那以后,自那以来,到现在
- 此后,后来
prep. (介词)
- (表示时间)从…以来,自从…之后 from (a point in past time) until now; during the period after
adv. (副词)
- 从过去某时间以来〔以后,到现在〕 from a specified time in the past till a later past time, or till now
conj. (连词)
- 自从(过去某事)以来〔以后,到现在〕 from (a specified event in the past) till a later past event, or till now
- 因为,既然,由于 because; as
- 1. Since the birds interbreed they cannot be classed as different species.
- 由于这些鸟进行杂交繁殖,不能把它们归为不同的物种。
来自柯林斯例句
- 2. I've had the hots for him ever since he came to college.
- 自从他来上大学后,我就对他春心萌动。
来自柯林斯例句
- 3. "Prices are down 40 per cent since Christmas," he lamented.
- “圣诞节以来物价降了4成,”他悲叹道。
来自柯林斯例句
- 4. The mechanics of the job, however, have changed little since then.
- 不过,工作流程从那以后就几乎没有任何变化。
来自柯林斯例句
- 5. Rock'n'roll has become so commercialised and safe since punk.
- 摇滚乐自从朋克乐以后就已经过于商业化而缺乏新意了。
来自柯林斯例句
用作连词 (conj.)
- He must have taken the book since it isn't here.
他一定是把书拿走了,因为书已不在这里了。
- Since you can't answer the question, perhaps we'd better ask someone else.
既然你无法回答这个问题,我们最好再问问别人。
- He had spoken to her only once since the party.
自从那次聚会以来,他只跟她说过一次话。
用作介词 (prep.)
- She's so easily fatigued since her illness.
自从病后,她很容易疲劳。
- She hasn't been out riding since the accident.
她自从出了事故以后,一直没有骑马外出过。
用作副词 (adv.)
- Bows and arrows have long since been out of use.
弓箭很早以前就没人使用了。
- He left home two weeks ago and we haven't heard from him since.
他两星期以前离开了家,到现在我们一直没有他的消息。
用作介词 (prep.)
- I have lived here since January.
自一月份以来,我一直住在这里。
- He had seen her only once since the meeting.
自从那次会议以来,他只见过她一次。
- He's been working in a bank since leaving school.
自从毕业后,他就一直在一家银行工作。
- I have not seen him since then.
从那以后我再也没见过他。
用作副词 (adv.)
- He disappeared many years since.
他多年以前就不知去向。
- Her husband died 10 years ago but she has since remarried.
她丈夫于十年前去世,但她后来又嫁人了。
- I've long since forgotten what our quarrel was about.
我早就忘掉我们为什么吵架了。
- It was not long since that I returned.
我是在不久前回来的。
- He came to London 3 years ago and has lived here ever since.
他三年前来到伦敦,此后就一直住在这里。
用作连词 (conj.)
- Since I left college,I have not seen him.
自从我从大学毕业以后,就没有见过他了。
- They have never been to see me since I was ill.
自从我生病之后,他们一直没来看过我。
- Since I have owned a bicycle,I have gone to school by it every day.
自从我有了一辆自行车后,我每天骑车上学。
- I have known him ever since I was a child.
我自孩提时代起就已经认识他了。
- It is ten years since she left me.
自从她离开我已经十年了。
- It is five years since he left here.
他离开这儿已有五年了。
- It is three years since I have seen him.
我已经三年没见到他了。
- It was four months since we had been here.
我们已经有四个月没来这了。
- His health is much improved since he gave up smoking.
他自戒烟以来,健康状况大大改善。
- I met him last week.Since we left school, we had often written to each other.
上周我遇见了他。自从我们离开学校后,我们曾经常互相写信。
- The man has been drinking beer ever since the party started.
宴会开始以来,那个男人就一个劲儿地喝着啤酒。
- She has been collecting stamps since she was a child.
她从小起就一直在集邮。
- Since it is late,I shall go home now.
由于时间晚了,我现在要回家了。
- Since you are so sure of it, he'll believe you.
既然你对此这么有把握,他会相信你的。
prep. (介词)
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since用作介词的意思是“从…以来,自从…之后”,其宾语常指过去的一个时间点,其含意通常指持续到说话时刻的动作或情况开始于什么时候。
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since之后常接名词、动名词作其宾语, since then意为“从那以后”。
adv. (副词)
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since用作副词表示“以前”时还可和long, ever连用。long since意为“好久以前”, not long since意为“就在不久前”, ever since意为“从那时起,此后一直”。
conj. (连词)
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since用作连词作“自从…以来〔以后或,现在〕”解时,引导时间状语从句,在主句是现在完成时的情况下,如果since从句中谓语动词用一般过去时,则表示动作或状态的完成,计时的起点是动作或状态完成的那一时刻,在语意上,非延续性动词的句子与其词意一致,含有肯定的意味,而延续性动词的句子与其词意恰好相反,含有否定的意味; 如果since从句用延续性动词的现在完成时,则表示该动作或状态一直延续到现在时刻,而且可以包括现在时刻在内,时间的起点应从动作发生之时算起,句子的意思和动词的词意一致,具有肯定意味; 在现代英语中,延续性动词的一般过去时有时也可表示动作或状态延续到现在时刻,时间的起点从动作或状态发生之时算起,不过这类句子多半要用ever来加强since的语意,然而, since从句中的谓语动词如果是非延续性动词,即使用ever来加强语意,也绝不意味着从句动作有什么延续性。
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在“it is+since从句”结构中:since从句的谓语动词多用一般过去时,其时间起点的计算以及从句的含意和动词词意的关系与1.中所述的相应部分相同; since从句中的谓词动词也可以用现在完成时,表示动作或状态的完成,时间的起点从动作或状态的完成之时算起,句子与动词的词意相反,含有否定的意味; 在这种结构中,如把is改成was,可用来表示某一过去动作或状态结束时起到另一过去时刻为止的这一段过去时间。
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since引导时间状语从句时,若主句表示目前的状况是由于过去某一件事所造成的后果或影响时,其谓语动词也可以用一般现在时; 有时候,通过上下文,可以看出从句的动作是延续到过去某个时间,这时主句的谓语动词要用过去完成时; 如果主句的动作是从过去某时一直延续到现在,主句可用现在完成进行时。
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since作“因为,既然,由于”解时,引导原因状语从句,用来说明产生主句的原因,这种原因带有分析后的推理性质。
prep. (介词)
- since, after, in
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- 这三个介词都可指示时间关系,表示“在…之后”。其区别是:
- after可表示从过去时间算起的一段时间之后,往往与过去时态连用(若接表示时间点的词,也可与将来时态连用); in则表示从现在时间算起推移到将来的一段时间之后,一般与将来时态连用; since所表示的时间往往是从过去某一点时间一直延续到说话的时间,因而一般与完成时态连用。
- since, for
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- 这两个词都可以和表示时间的词语连用。一般说来, for后接一段时间(累计时间),用以说明某事一直进行了多长时间; 而since后接某一时间(过去的一个时间点),用以表示某件事开始的时间。
- since, from
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- 这两个词在表示时间时含意不同。
- 1.since是指延续到说话时刻的动作或情况开始于何时,是站在动作中止的时间点往过去追溯计算; 而from只表示某事的起点,要表示起止需用from...to〔until〕...结构。
- 2.有from表示时间起点的句子,现在、过去、将来的时态都可使用; 而since表示时间起点的句子不用将来时态。
conj. (连词)
- since, as, because, for
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- 这四个词都可以作连词引导一个表示原因的状语从句。其区别是:
- 1.because是从属连词,引导的原因状语从句指的是自然、直接的原因,主句表示必然的因果关系,而原因构成句子的主要部分,是句子的重点。另外,because引导的从句多放在句末,但有时也可放在句首,这种情况往往是为了强调。
- 2.如果原因很明显或已为人们所知,或不如句子的其余部分重要,就用as或since,since比as更正式一些,这两个词都为从属连词,常译为“由于,既然”,语气比because轻。as和since引导的句子多放在整个句子的开头,偶尔它们引导的(特别是since引导的)句子也可以放在后面。since作为理由有“不好”或“勉强”的含意;而as只将既成事实作为理由,并不含有“不好”或“勉强”的意味。
- 3.for是并列连词,引导的是并列从句,表示原因的语气很弱,一般是对结果作推断性的补充说明或解释,不表示直接原因。for较正式,很少用于口语,一般用于书面语,前面一般多用逗号。
- as,because,for,since
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- 这些连词均含有“因为”之意。
- as从属连词,语意较because, since弱,着重在主句,所表示的原因或理由是“附带的”。
- because从属连词,语意强,着重直接的原因或理由,所引出的从句是全句的重心,用以回答why提出的问题。
- for并列连词,语气较弱,所引出的句子一般放在后面,表示附带说明的理由或推断理由。
- since语意比because弱,但比as强,一般用于表示“由于大家已知的事实”。
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since then
自那以后
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long since
很久以前
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Much water has flown under the bridges since.
自从那时起,已经过了...
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A lot of water has flown under the bridge since.
自从那时起,已经过了...
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the best thing since sliced bread
最好的东西
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A lot of water has flown under the bridges since.
自从那时起,已经过了...
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A lot of water has flown beneath the bridge since.
自从那时起,已经过了...
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There has been many a peck of salt eaten since.
年深日久,已经好多年...
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ever since
从那时起
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A lot of water has passed under the bridges since.
自从那时起,已经过了...
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Much water has run beneath the bridges since.
自从那时起,已经过了...
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Much water has flown beneath the bridges since.
自从那时起,已经过了...
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A lot of water has gone under the bridge since.
自从那时起,已经过了...
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A lot of water has passed beneath the bridges since.
自从那时起,已经过了...
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Much water has gone beneath the bridges since.
自从那时起,已经过了...
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Much water has passed beneath the bridges since.
自从那时起,已经过了...
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Much water has run under the bridges since.
自从那时起,已经过了...
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A lot of water has passed beneath the bridge since.
自从那时起,已经过了...
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A lot of water has gone under the bridges since.
自从那时起,已经过了...
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A lot of water has passed under the bridge since.
自从那时起,已经过了...