since

preposition

/sɪns/

(used with the present perfect or past perfect tense与现在完成时或过去完成时连用) from a time in the past until a later past time, or until now自…以后；从…以来
- She's been off work since Tuesday.星期二以来她一直没上班。
- We've lived here since 2006.从 2006 年开始我们便住在这里。
- I haven't eaten since breakfast.早饭以后我还没吃过东西呢。
- He's been working in a bank since leaving school.他中学毕业以后一直在一家银行工作。
- Since the party she had only spoken to him once.那次聚会以后，她只和他说过一次话。
- ‘They've split up.’ ‘Since when?’“他们分手了。” “什么时候的事儿？”
- That was years ago. I've changed jobs since then.那是多年以前的事了。自那以来我已经换过几个工作了。
Use for, not since, with a period of time: I've been learning English for five years. • I’ve been learning English since five years. Topics Timea2
since when? used when you are showing that you are angry about something（表示气愤）何曾，什么时候
- Since when did he ever listen to me?他什么时候听过我的话？

词源late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen ‘thereupon, afterwards, ever since’).

since

conjunction

/sɪns/

(used with the present perfect, past perfect or simple present tense in the main clause与用现在完成时、过去完成时或一般现在时的主句连用) from an event in the past until a later past event, or until now从…以后；自…以来
- Cath hasn't phoned since she went to Berlin.卡思自从去了柏林还没有打来过电话。
- It was the first time I'd had visitors since I'd moved to London.那是我搬到伦敦以后第一次有人来看我。
- It's twenty years since I've seen her.我已经二十年没见她了。
- How long is it since we last went to the theatre?我们多久没去看戏了？
- She had been worrying ever since the letter arrived.自从接到那封信后她就一直焦虑不安。
Topics Timea2
because; as因为；由于；既然
- We thought that, since we were in the area, we'd stop by and see them.我们想，既然到了这个地方，就该顺便去看看他们。

词源late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen ‘thereupon, afterwards, ever since’).

since

adverb

/sɪns/

used with the present perfect or past perfect tense与现在完成时或过去完成时连用

from a time in the past until a later past time, or until now自…以后；从…以来
- She went for a run on Monday and has not been seen since. 她周一去跑步了，从那以后就没人见过她。
- She moved to Pakistan in 1997 and has been living in Lahore ever since.她于1997年移居巴基斯坦，此后一直住在拉合尔。
- He left home two weeks ago and we haven't heard from him since.他两周前离家外出，我们至今还没有他的音信。
- The health of the British people was better at the end of the Second World War than at any time before or since.第二次世界大战结束时，英国人民的健康状况比以往任何时候都好。
- The original building has long since (= long before now) been demolished.原来的建筑老早就拆了。
at a time after a particular time in the past此后；后来
- The song topped the charts in 1957 and has since become a rock and roll classic.这首歌于1957年登上排行榜榜首，此后成为摇滚经典。
- We were divorced two years ago and she has since remarried.我们两年前离了婚，之后她又再婚了。

词源late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen ‘thereupon, afterwards, ever since’).

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词汇	since
释义	since preposition /sɪns/ /sɪns/ (used with the present perfect or past perfect tense与现在完成时或过去完成时连用) from a time in the past until a later past time, or until now自…以后；从…以来 She's been off work since Tuesday.星期二以来她一直没上班。 We've lived here since 2006.从 2006 年开始我们便住在这里。 I haven't eaten since breakfast.早饭以后我还没吃过东西呢。 He's been working in a bank since leaving school.他中学毕业以后一直在一家银行工作。 Since the party she had only spoken to him once.那次聚会以后，她只和他说过一次话。 ‘They've split up.’ ‘Since when?’“他们分手了。” “什么时候的事儿？” That was years ago. I've changed jobs since then.那是多年以前的事了。自那以来我已经换过几个工作了。 Use for, not since, with a period of time: I've been learning English for five years. • I’ve been learning English since five years. Topics Timea2 since when? used when you are showing that you are angry about something（表示气愤）何曾，什么时候 Since when did he ever listen to me?他什么时候听过我的话？词源late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen ‘thereupon, afterwards, ever since’). since conjunction /sɪns/ /sɪns/ (used with the present perfect, past perfect or simple present tense in the main clause与用现在完成时、过去完成时或一般现在时的主句连用) from an event in the past until a later past event, or until now从…以后；自…以来 Cath hasn't phoned since she went to Berlin.卡思自从去了柏林还没有打来过电话。 It was the first time I'd had visitors since I'd moved to London.那是我搬到伦敦以后第一次有人来看我。 It's twenty years since I've seen her.我已经二十年没见她了。 How long is it since we last went to the theatre?我们多久没去看戏了？ She had been worrying ever since the letter arrived.自从接到那封信后她就一直焦虑不安。 Topics Timea2 because; as因为；由于；既然 We thought that, since we were in the area, we'd stop by and see them.我们想，既然到了这个地方，就该顺便去看看他们。词源late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen ‘thereupon, afterwards, ever since’). since adverb /sɪns/ /sɪns/ used with the present perfect or past perfect tense与现在完成时或过去完成时连用 from a time in the past until a later past time, or until now自…以后；从…以来 She went for a run on Monday and has not been seen since. 她周一去跑步了，从那以后就没人见过她。 She moved to Pakistan in 1997 and has been living in Lahore ever since.她于1997年移居巴基斯坦，此后一直住在拉合尔。 He left home two weeks ago and we haven't heard from him since.他两周前离家外出，我们至今还没有他的音信。 The health of the British people was better at the end of the Second World War than at any time before or since.第二次世界大战结束时，英国人民的健康状况比以往任何时候都好。 The original building has long since (= long before now) been demolished.原来的建筑老早就拆了。 at a time after a particular time in the past此后；后来 The song topped the charts in 1957 and has since become a rock and roll classic.这首歌于1957年登上排行榜榜首，此后成为摇滚经典。 We were divorced two years ago and she has since remarried.我们两年前离了婚，之后她又再婚了。词源late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen ‘thereupon, afterwards, ever since’).
随便看	drownding drownds drowned drowner drowners drowning drowningly drownings drownings drowns drown your fears drown your fears/loneliness/sorrows, etc. drown your loneliness drown your sorrows drowse drowsed drowses drowsier drowsiest drowsihead drowsily drowsiness drowsinesses drowsinesses drowsing