since和as有什么区别

作者&投稿:汉元 (若有异议请与网页底部的电邮联系)
since和as有什么区别?~

as 是从属连词,说明一般的因果关系,语气比because弱,说明比较明显的原因,它引导的从句通常放在句首,有时也可放在句末。

例如:As it is raining, you\'d better take a taxi.

天下雨了,你最好乘出租车。


since 意为"既然",表示对方已知的无需加以说明的原因或事实,语气比because弱,但是比as 强。

例如:Since we have no money, we can't buy that vase.

既然我们没钱,我们就不能买那花瓶。

Since everybody is here, let's begin our party.

既然大家都到了,那就开始我们的聚会吧!

(1)时间(Time)

表达时间的从属连词有:when, while, as ,before, after, till ,until, since, the moment/ instant, as long as ,whenever, etc.

例A:Babies cry when they are hungry.

(婴儿饿的时候就会哭。)

例B:When I get there I'll give you a call.

(我到达那边时会打个电话给你。)

例C:A Mr.Johnson came to see you while you were out.

(你不在时有位叫约翰逊的先生来看你。)

例D:While I was standing outside the post office ,I saw Mary walking into the bookstore opposite (the post office).

(我站在邮局外面时,看到玛丽走进了邮局对面的书店。)

例E:As I sat down beside her, she stood up and walked away.

(我在她的旁边坐下来,她就站起来走开了。)

例F:Very often she sings as she does the housework.

(她常常一面做家务一面哼着歌。)

例G:The old man(had) died before the doctor came.

(那位老人在医生来之前死了。)

例H:She got married right after she graduated from college.

(她大学毕业之后就结婚了。)

例I:We walked and walked till/until it was quite dark.

(我们一直走,一直走,走到天完全黑了。)

例J:Until you told me, I had no idea of it at all.

(直到你告诉我为止,对那件事我全然不知。)

例K:I haven't heard from her since she left for Australia.

(自从她到澳大利亚去之后我就一直没有她的消息。)

例L:The policemen rushed to the bank the moment they got the alarm.

(警察一接到警报就立刻赶到银行去了。)

例M:I'll let you know as soon as I've received the result.

(我一有结果就立即通知你。)

例N:You may stay here as/so long as you keep quiet.

(只要你不吵,你就可以留在这里。)

例O:I go to my teacher for advice whenever I am in trouble.

(每当我有麻烦时我就去请教我的老师。)

解说 要在一个句子里表达两个动作,说“……A……的时候就……B……”,“when”是最常用的表时间的从属连词(例A)。表示相接发生的两动作也常使用“when”(例B)。

“while”是表示“during the time that…”的意思,也就是说含有“时量”的意思(例C),因此“while +S + be +V-ing…”在日常英语中是很常用的句式(例D)。

“as”表达时间时最常用于表达两种动作的相继发生(例E)或平行发生(例F)。

表示两动作的“在先”或“在后”通常都使用“before”“after”(例G,H)。表示时间的“till”和“until”意思相同,可以代换使用(例I),不过用于句首时只能使用“Until”(例J)。

“since”是表示“自从……”的意思(例K)。

“the moment/instant”也是表达时间的从属连词,表示“一……就立即……”的意思(例L),与“as soon as (例M)”同义。

例N的“as/ so long as ”在现代英语以“as long as”较为普通。

例O的“whenever”是表示“every time when”(每……的时候)”的意思。

(2)场所(Place)

表达场所的从属连词有:where, wherever

例:Where there is a will ,there is a way. ----Proverb.

(有志者事竟成。——格言)

例:Sit wherever you like, please.

(你喜欢哪儿就坐哪儿。)

(3)原因(Cause),理由(Reason)

表达原因、理由的从属连词有:because ,as ,since, seeing (that),now(that) ,etc.

例:He has few friends because he is selfish.

(他几乎没有朋友是因为他自私。)

例:As I got up late ,I came to school without my breakfast this morning.

(因为我起床晚,今天早晨我没吃早饭就来上学了。)

例:Since you are a friend of my younger brother's I'll come to your help.

(既然你是我弟弟的朋友,我愿意来帮你忙。)

例:Seeing that he was there ,he may have seen her.

(他既然也在那里,他可能和她见了面。)

例:Now(that) the exam is over, you can go to the movies this evening.

(既然已经考完了,今天晚上你就可以去看电影。)

解说 表达原因、理由最常用的从属连词就是“because”,但是在用法上应注意下列三点。

①“for”与“because”的区别

(a)“for”是并列连词,所以由“for”连接成的句子是并列句;“because”是从属连词,所以由“because”连接成的句子是复合句。

例:He speaks English well for he comes from the Untied States.

(他英语讲得好,因为他是美国人。——并列句)

He is hungry because he didn't have breakfast this morning.

(他饿是因为他今天早上没吃早餐。——复合句)

(b)“because…”可用在句首,“for…”则不可以。

For he comes from…(误)

Because he didn't have…(正)

(c)“for…”是表示补述原因,“because…”是表示直接原因。

例:He is in good health for he keeps early hours.

(他身体健康,因为他早睡早起。——早睡早起只是在补述前面从句的“He…health”,不是“He…health”的直接原因,所以本句用“for”而不用“because”。

例: He was punished because he cheated in the examination.

(他因考试作弊而被处罚了。——考试作弊是被处罚的直接原因,所以用“because”而不用“for”。)

②“because…”是从句,不能作为句子(这是中国学生常犯的错误。)

例:He felt tired.Because he had walked a long way.(误)

(他觉得疲倦,因为他走了很长的路。)

He felt tired because he …(正)

Because …,he felt tired.(正)

不过在回答“Why…”时,“Because…”可以单独作句子。

例:Why did you have a quarrel with him?

(你为什么和他吵架了?)

Because he called me names.(正)

(因为他骂我。)

③“because”引导的是从句,“because of ”是短语介词,只能取宾语。

例:The game was called off because it rained.

(那场球赛被取消是因为下了雨。) 例:Because of the rain, the game was called off.

(因雨那场球赛被取消了。)

(4)because与as, since的区别

“as”和“since”表示原因理由时,通常都用于指对方或读者已知或可推知的原因和理由,此种用法尤其常见于日常对话英语。

例:As it's raining again, we'll have to stay(at) home.

(因为又下着雨,我们只好留在家里了。)

例:Since he had not paid his bill, his electricity was cut off.

(既然他不付电费,他的电就被切断了。)

----PEU,Michael Swan

相对地,“because”就用于指对方或读者不知的原因或理由。 例:Why were you late for school this morning?

(今天早晨你为什么上学迟到了。)

Because I had an accident on my way to school.

(因为我在上学途中发生了车祸。)

“seeing(that); now(that)”的用法及其所表示的意思与“since”相同,“that”常省略。

(5)目的(Purpose)

表达目的的从属连词有:(so)that, in order that, 通常和“may/might…”连用。

例A:She saves some money every month that she may go to the United States for advanced studies.

(她每个月储蓄一些钱目的是要赴美国留学深造。) 例B:He started early(so) that he might catch the first train.

(他出发早为的是要赶上第一班火车。)

例C:I practiced and practiced in order that I could win the first prize.

(我反复不断地练习,目的就是要得第一名。)

解说 主句的动词若是一般现在时(如例A),表目的的从句用“that…may +V…”,若是过去时(如例B),就用“that…might +V…”。表示目的的从句在日常英语中也常使用“can/could +V…(例C)”。

(6)结果(Result)

表达结果的从属连词有:so …that,such…that。

例A:He is so lazy that he has failed in the examination again.

(他如此懒惰,所以他又没考及格。)

例B:He ran- so fast that nobody could catch him.

(他跑得如此地快,结果没有人能捉住他。)

例C:He asked us such a hard question that nobody present could give a correct answer to it.

(他问了如此难的问题,结果在场的人没有一人能给出正确的答案。)

解说 表示结果的句式是:“so + Adj.(例A)/Adv.(例B) +that…”和“such a +Adj.+N +that or such + Adj.+N(e) s+ that ”。这两个句式可以通用,例如:

He is such a lazy student that…

He was such a fast runner that…

He asked us so hard a question that…

(7)条件(Condition)

表达条件的从属连词有:if, unless, supposing/ suppose(that) ,in case (that), provided(that) ,etc.

例A:She won't go if it rains tomorrow.

(如果明天下雨她就不去。)

例B:If I had wings, I could fly like birds.

(如果我有翅膀,我就能如鸟一般地飞。)

例C:She will go unless it rains tomorrow.

since和as是从属连词,说明的是已为人们所知和理由。since的语气比because弱,但比as强。since和as引导的从句一般放在句子的开头。

Since he was busy, he didn't come.

他因为忙,所以没来。

As I have a day off today, I'll write to you.

因为我今天有一天假,所以就给你写信。

此外,since也可以述说推断的理。如:

It must have rained, since the ground is wet.

一定下过雨,因为地是湿的.

(1)时间(Time)

表达时间的从属连词有:when, while, as ,before, after, till ,until, since, the moment/ instant, as long as ,whenever, etc.

例A:Babies cry when they are hungry.

(婴儿饿的时候就会哭。)

例B:When I get there I'll give you a call.

(我到达那边时会打个电话给你。)

例C:A Mr.Johnson came to see you while you were out.

(你不在时有位叫约翰逊的先生来看你。)

例D:While I was standing outside the post office ,I saw Mary walking into the bookstore opposite (the post office).

(我站在邮局外面时,看到玛丽走进了邮局对面的书店。)

例E:As I sat down beside her, she stood up and walked away.

(我在她的旁边坐下来,她就站起来走开了。)

例F:Very often she sings as she does the housework.

(她常常一面做家务一面哼着歌。)

例G:The old man(had) died before the doctor came.

(那位老人在医生来之前死了。)

例H:She got married right after she graduated from college.

(她大学毕业之后就结婚了。)

例I:We walked and walked till/until it was quite dark.

(我们一直走,一直走,走到天完全黑了。)

例J:Until you told me, I had no idea of it at all.

(直到你告诉我为止,对那件事我全然不知。)

例K:I haven't heard from her since she left for Australia.

(自从她到澳大利亚去之后我就一直没有她的消息。)

例L:The policemen rushed to the bank the moment they got the alarm.

(警察一接到警报就立刻赶到银行去了。)

例M:I'll let you know as soon as I've received the result.

(我一有结果就立即通知你。)

例N:You may stay here as/so long as you keep quiet.

(只要你不吵,你就可以留在这里。)

例O:I go to my teacher for advice whenever I am in trouble.

(每当我有麻烦时我就去请教我的老师。)

解说 要在一个句子里表达两个动作,说“……A……的时候就……B……”,“when”是最常用的表时间的从属连词(例A)。表示相接发生的两动作也常使用“when”(例B)。

“while”是表示“during the time that…”的意思,也就是说含有“时量”的意思(例C),因此“while +S + be +V-ing…”在日常英语中是很常用的句式(例D)。

“as”表达时间时最常用于表达两种动作的相继发生(例E)或平行发生(例F)。

表示两动作的“在先”或“在后”通常都使用“before”“after”(例G,H)。表示时间的“till”和“until”意思相同,可以代换使用(例I),不过用于句首时只能使用“Until”(例J)。

“since”是表示“自从……”的意思(例K)。

“the moment/instant”也是表达时间的从属连词,表示“一……就立即……”的意思(例L),与“as soon as (例M)”同义。

例N的“as/ so long as ”在现代英语以“as long as”较为普通。

例O的“whenever”是表示“every time when”(每……的时候)”的意思。

(2)场所(Place)

表达场所的从属连词有:where, wherever

例:Where there is a will ,there is a way. ----Proverb.

(有志者事竟成。——格言)

例:Sit wherever you like, please.

(你喜欢哪儿就坐哪儿。)

(3)原因(Cause),理由(Reason)

表达原因、理由的从属连词有:because ,as ,since, seeing (that),now(that) ,etc.

例:He has few friends because he is selfish.

(他几乎没有朋友是因为他自私。)

例:As I got up late ,I came to school without my breakfast this morning.

(因为我起床晚,今天早晨我没吃早饭就来上学了。)

例:Since you are a friend of my younger brother's I'll come to your help.

(既然你是我弟弟的朋友,我愿意来帮你忙。)

例:Seeing that he was there ,he may have seen her.

(他既然也在那里,他可能和她见了面。)

例:Now(that) the exam is over, you can go to the movies this evening.

(既然已经考完了,今天晚上你就可以去看电影。)

解说 表达原因、理由最常用的从属连词就是“because”,但是在用法上应注意下列三点。

①“for”与“because”的区别

(a)“for”是并列连词,所以由“for”连接成的句子是并列句;“because”是从属连词,所以由“because”连接成的句子是复合句。

例:He speaks English well for he comes from the Untied States.

(他英语讲得好,因为他是美国人。——并列句)

He is hungry because he didn't have breakfast this morning.

(他饿是因为他今天早上没吃早餐。——复合句)

(b)“because…”可用在句首,“for…”则不可以。

For he comes from…(误)

Because he didn't have…(正)

(c)“for…”是表示补述原因,“because…”是表示直接原因。

例:He is in good health for he keeps early hours.

(他身体健康,因为他早睡早起。——早睡早起只是在补述前面从句的“He…health”,不是“He…health”的直接原因,所以本句用“for”而不用“because”。

例: He was punished because he cheated in the examination.

(他因考试作弊而被处罚了。——考试作弊是被处罚的直接原因,所以用“because”而不用“for”。)

②“because…”是从句,不能作为句子(这是中国学生常犯的错误。)

例:He felt tired.Because he had walked a long way.(误)

(他觉得疲倦,因为他走了很长的路。)

He felt tired because he …(正)

Because …,he felt tired.(正)

不过在回答“Why…”时,“Because…”可以单独作句子。

例:Why did you have a quarrel with him?

(你为什么和他吵架了?)

Because he called me names.(正)

(因为他骂我。)

③“because”引导的是从句,“because of ”是短语介词,只能取宾语。

例:The game was called off because it rained.

(那场球赛被取消是因为下了雨。) 例:Because of the rain, the game was called off.

(因雨那场球赛被取消了。)

(4)because与as, since的区别

“as”和“since”表示原因理由时,通常都用于指对方或读者已知或可推知的原因和理由,此种用法尤其常见于日常对话英语。

例:As it's raining again, we'll have to stay(at) home.

(因为又下着雨,我们只好留在家里了。)

例:Since he had not paid his bill, his electricity was cut off.

(既然他不付电费,他的电就被切断了。)

----PEU,Michael Swan

相对地,“because”就用于指对方或读者不知的原因或理由。 例:Why were you late for school this morning?

(今天早晨你为什么上学迟到了。)

Because I had an accident on my way to school.

(因为我在上学途中发生了车祸。)

“seeing(that); now(that)”的用法及其所表示的意思与“since”相同,“that”常省略。

(5)目的(Purpose)

表达目的的从属连词有:(so)that, in order that, 通常和“may/might…”连用。

例A:She saves some money every month that she may go to the United States for advanced studies.

(她每个月储蓄一些钱目的是要赴美国留学深造。) 例B:He started early(so) that he might catch the first train.

(他出发早为的是要赶上第一班火车。)

例C:I practiced and practiced in order that I could win the first prize.

(我反复不断地练习,目的就是要得第一名。)

解说 主句的动词若是一般现在时(如例A),表目的的从句用“that…may +V…”,若是过去时(如例B),就用“that…might +V…”。表示目的的从句在日常英语中也常使用“can/could +V…(例C)”。

(6)结果(Result)

表达结果的从属连词有:so …that,such…that。

例A:He is so lazy that he has failed in the examination again.

(他如此懒惰,所以他又没考及格。)

例B:He ran- so fast that nobody could catch him.

(他跑得如此地快,结果没有人能捉住他。)

例C:He asked us such a hard question that nobody present could give a correct answer to it.

(他问了如此难的问题,结果在场的人没有一人能给出正确的答案。)

解说 表示结果的句式是:“so + Adj.(例A)/Adv.(例B) +that…”和“such a +Adj.+N +that or such + Adj.+N(e) s+ that ”。这两个句式可以通用,例如:

He is such a lazy student that…

He was such a fast runner that…

He asked us so hard a question that…

(7)条件(Condition)

表达条件的从属连词有:if, unless, supposing/ suppose(that) ,in case (that), provided(that) ,etc.

例A:She won't go if it rains tomorrow.

(如果明天下雨她就不去。)

例B:If I had wings, I could fly like birds.

(如果我有翅膀,我就能如鸟一般地飞。)

例C:She will go unless it rains tomorrow.

since表示的理由只是附加的原因,特别是已知的、显然的理由。
as表示原因时意义比since弱,它所说明的原因只是附带的理由,着重点在主句。as引起的从句可以放在句首或句中

如果你仅是交流过程中,突然想到了这个问题,建议你忽略不计,没什么区分意义。
但如果你为了某些英语考试,还是多按老师教的区分来记吧。


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As far as I'm concerned, I appreciate this new form of education and also have got some benefits from it. It's indeed a helpful complement to the traditional education means.译文 如今,在线教育已经在人们中非常流行。那些想学东西的人,不管他们是年轻人还是老年人,都可以在不同的科目...

纽卡斯尔大学的知名校友
Graham William Smith- Probation officer, widely regarded as the father of the national probation service. John Snow- Discoverer of cholera transmission through water, leader in the adoption of anaesthesia. Snow was one of the 8 students enrolled on the very first term of the Medical School. ...

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GK 1 Peter Shilton 希尔顿 shelearn CB 6 Tony Adams 亚当斯 阿森纳 adion CMF 4 Paul Ince 因斯 麦克莱斯菲尔德 imghe OMF 16 Glenn Hoddle 霍德尔 切尔西 horner OMF 8 Paul Gascoigne 加斯科因 波士顿联 galbone CF 10 Gary Lineker 莱因克尔 名古屋八鲸 linden GK 12 David Seaman 希曼 曼城 ...

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Língua chinesa in tili Reo Tinitō Limba chinez Chinu simi Китайскийязык Кытайтыла Han-Chinesiske Sproaken Se-china Gjuha kineze Chinese language íntina Kitajina Кинески език Kineski jezik Kiinan kieli Kinesiska Wikang Tsino ince Hyta...

东西湖区15785262123: since和as有什么区别? -
众波安素: as 是从属连词,说明一般的因果关系,语气比because弱,说明比较明显的原因,它引导的从句通常放在句首,有时也可放在句末.例如:As it is raining, you\'d better take a taxi.天下雨了,你最好乘出租车.since 意为"既然",表示对方已...

东西湖区15785262123: since和as有什么区别? -
众波安素:[答案] as 是从属连词,说明一般的因果关系,语气比because弱,说明比较明显的原因,它引导的从句通常放在句首,有时也可放在句末. 例如:As it is raining,you\'d better take a taxi. 天下雨了,你最好乘出租车. since 意为"既然",表示对方已知的无需...

东西湖区15785262123: since和as有什么区别(作“因为”解时) -
众波安素:[答案] since和as是从属连词,说明的是已为人们所知和理由.since的语气比because弱,但比as强.since和as引导的从句一般放在句子的开头.Since he was busy,he didn't come.他因为忙,所以没来.As I have a day off today,I'll w...

东西湖区15785262123: since 和 as 引导原因状语从句的区别? 一定要很清楚的判断方法,举例 -
众波安素: as,because,since都可以表示因果关系,连接原因状语从句,含义是"因为,由于",但它们有区别:because表示的语气最强;as一般放在句首,语气较弱,较口语化;since常常用在书面语中,表示多为对方已知的、或稍加分析便可得知的原...

东西湖区15785262123: since,as的区别. -
众波安素: since的语气比as强.since和as引导的从句一般放在句子的开头.since和as的主要区别是:用as引导原因从句语气较弱,所说明原因是附带,而since表示原因暗示着是稍加分析之后才能推断出来原因. 例如: Since we have no money, we can't buy that vase. 既然我们没钱,我们就不能买那花瓶. Since everybody is here, let's begin our party. 既然大家都到了,那就开始我们的聚会吧!

东西湖区15785262123: as和since有什么区别?我觉得他们都可以表示因为的意思 -
众波安素: 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".

东西湖区15785262123: since 和 as 引导原因状语从句时,有什么区别? -
众波安素:[答案] as,because,since都可以表示因果关系,连接原因状语从句,含义是"因为,由于",但它们有区别:because表示的语气最强;as一般放在句首,语气较弱,较口语化;since常常用在书面语中,表示多为对方已知的、或稍加分析便可得知的原因,...

东西湖区15785262123: as与since引导原因状语从句的区别 -
众波安素: since译为“既然”,表示已经知道条件的情况下.一般用在主句之前. as译为“因为”,强调主从句并重.

东西湖区15785262123: as 与since 表示当.的时候时 有什么区别?举些例子 -
众波安素:[答案] as as引导原因状语从句,说明比较明显的原因,多用于日常语中,常译为“由于”,从句一般放于主句前.例如: As he wasn't ready in time,we went without him. As he is ill,he won't go. I must stop writing now,as I have rather a lot of work to do. As ...

东西湖区15785262123: as用在句首和since有什么区别since和as不都有因为的意思吗.而且都能在句首,那有什么区别? -
众波安素:[答案] as是从属连词,说明一般的因果关系,语气比because弱,说明比较明显的原因,它引导的从句通常放在句首,有时也可放在句末.例如:(1)As it is raining,you\'d better take a taxi.天下雨了,你最好乘出租车.(2) As rain h...

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