since的用法 since的用法 越具体越好

一、since的用法。

1、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。

2、since之后常接名词、动名词作其宾语，sincethen意为“从那以后”。

since用作副词表示“以前”时还可和long, ever连用。longsince意为“好久以前”, not longsince意为“就在不久前”, eversince意为“从那时起,此后一直”。

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。

这三个介词都可指示时间关系,表示“在…之后”。其区别是：

1）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）。

2）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。

3）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。

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。

误： It is now sixty-two years since World WarⅡ.第二次世界大战距今已有62年了。

正： It is now fifty-six years since World WarⅡ.

第二次世界大战距今已有56年了。

析： since的宾语有时也可指过去的一段时间，此时since引导的介词短语所表示的时间通常是从这个时期的结束点算起，而第二次世界大战是1939年开始，1945年结束，以2001年计算,因此应是56年，而不是62年。

二、since的用法时态有哪些

1、现在完成(进行)时态 since 短暂动词的一般过去时。表示从句动作"开始”以来，主句活动在持续。

例：I have worked in this company since I graduated.

翻译：自从我毕业以来，我就在这家公司上班。

2、现在完成(进行)时态 since 延续动词的般过去时。表示从句动作“结束"以来，主句活动在持续。

例：It has been/ is a long time since Mark lived here.

3、现在完成(进行)时态 since 延续动词的现在完成时。表示从句动作"开始"以来，主句活动在持续。

例：He hasn't contacted me since I have worked inthat company.

翻译：自从我开始在那家公司工作后，他就再没有和我联系过。

一、含义：conj.因为；既然；自从。prep.自从。adv.此后。

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，其含义通常指持续到说话时刻的动作或情况开始于什么时候。

since之后常接名词、动名词作其宾语，since then意为“从那以后”。

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。

Bows and arrows have long since been out of use.

ago是表示时间的副词，其基本意思是“以前”，表示事情发生在“从此刻算起若干时间以前”，也可以表示“事情发生距现在有多长时间”。简言之，ago的时间参照点是现在。

ago在句中一般不单独使用，须与表示时间的名词或副词搭配使用，且要放在它所修饰词的后面。

The dinosaurs disappeared long ago.

三、since的用法 越具体越好

since的用法：译作“自从…以来”

(1)接时间点：如 I have stayed in that country since 1995.要求：谓v.用现在完成时，而且须是延续性动词。

(2)接一段时间 ago：如 They have lived in that house since two years ago.要求：谓v.用现在完成时，而且须是延续性动词。

(3)接时间状语从句：如 I have loved her since I met her last time./ Lily has stayed at home since she left school.要求：主句的谓v.用现在完成时，而且须是延续性动词；从句的谓v.用一般过去时，而且须是终止性动词。

(4)用于句型“It’s/ It has been 一段时间 since 时间状语从句”中，译作“自从…以来,已经…(时间)了”。如 It’s/ has been three months since he moved to this city.要求：主句的谓v.用一般现在时或现在完成时；从句的谓v.用一般过去时，而且须是终止性动词。

(5)用于句型“一段时间 has passed since 时间状语从句”中，译作“自从…以来,…

(时间)已经过去了”。如上个例句还可写成：Three months has passed since he moved to this city.要求：主句的谓v.用现在完成时，而且动词必须是has passed；从句的谓v.用一般过去时，而且须是终止性动词。

(6)注：当since用于否定句时，主句的谓v.可以是终止性动词。如 He hasn’t seen the film since last month.

(7)相关词组：“从那时起”：ever since、since then、from then on.

注：ever since作为一个词组，放句尾可单独使用。如I have given up smoking ever since.另外，还可在since后接句子。since前加ever，只是加重语气而已。如 I have given up smoking ever since I caught a bad cough.

(8) since还可引导原因状语从句，译作“由于；因为”，相当于because。如 Since he was lazy, he didn’t finish his homework.

希望我的回答能够帮到你，望采纳！

祝你学习进步，天天快乐。O(∩_∩)O

四、since的四种用法

since 时间点，要求谓语动词用现在完成时，而且必须是延续性动词。

since 一段时间 ago，要求谓语动词用现在完成时，而且必须是延续性动词。

since 从句，要求主句谓语动词用现在完成时，而且必须是延续性动词；从句谓语动词用一般过去时，而且是终止性动词。

It is/ has been 一段时间 since从句，意为“自从……以来已经（多久）了”。

Example: I have stayed in that country since 1995.从1995年以来我就在那个国家了。

Example: They have lived in that house since two years ago.两年前他们就住在那座房子里了。

Example: Lily has stayed at home since she left school.莉莉离开学校之后就一直呆在家里。

Example: It has been three months since he moved to this city.他搬到这个城市已经三个月了。

五、大学英语六级单词since有哪些用法

since的用法：译作“自从…以来”

(1)接时间点：如 I have stayed in that country since 1995.要求：谓v.用现在完成时，而且须是延续性动词。

接一段时间 ago：如 They have lived in that house since two years ago.要求：谓v.用现在完成时，而且须是延续性动词。

接时间状语从句：如 I have loved her since I met her last time./ Lily has stayed at home since she left school.要求：主句的谓v.用现在完成时，而且须是延续性动词；从句的谓v.用一般过去时，而且须是终止性动词。

(4)用于句型“It’s/ It has been 一段时间 since 时间状语从句”中，译作“自从…以来,已经…(时间)了”。如 It’s/ has been three months since he moved to this city.要求：主句的谓v.用一般现在时或现在完成时；从句的谓v.用一般过去时，而且须是终止性动词。

(5)用于句型“一段时间 has passed since 时间状语从句”中，译作“自从…以来,…(时间)已经过去了”。如上个例句还可写成：Three months has passed since he moved to this city.要求：主句的谓v.用现在完成时，而且动词必须是has passed；从句的谓v.用一般过去时，而且须是终止性动词。

(6)注：当since用于否定句时，主句的谓v.可以是终止性动词。如 He hasn’t seen the film since last month.

(7)相关词组：“从那时起”：ever since、since then、from then on.注：ever since作为一个词组，放句尾可单独使用。如I have given up smoking ever since.另外，还可在since后接句子。since前加ever，只是加重语气而已。如 I have given up smoking ever since I caught a bad cough.

(8) since还可引导原因状语从句，译作“由于；因为”，相当于because。如 Since he was lazy, he didn’t finish his homework.

therefore adv.因此,所以=for that reason=consequently常用于连接两个并列分句，其前加“and”或分号“;”。

He was ill, and therefore could not come.他病了,所以未能来。

He has broken his leg and therefore he can't walk.他摔坏了腿，因此不能走路了。

We do not have enough money. Therefore we cannot afford to buy the new car.我们的钱不够,因此买不成这辆新车。

It was late, so we went home.天晚了,所以我们就回家去了。

He was sick, so they were quiet.他病了，所以他们很安静。

The town was built among the hills, hence the name Hilltown.该城镇修建在群山之中,故取名'山城'。

It is very late; hence you must go to bed.时间已经很晚了，因此你必须睡觉去。(记住前面是分号，而不是逗号)

then adv因此，就 Go into the cave, then they won't see you.躲进洞里去，那他们就看不到你了。

5、accordingly adv.因此,从而;所以，因此结果;因此(偶作连词使用conj.)

He was asked to leave the city and accordingly he went.有人叫他离开该城市,所以他就走了。 You may arrange accordingly.你可以权宜处理。

Mr Foster has never been to China. Consequently/ Hence he knows very little about it.福斯特先生从未去过中国,所以对中国了解得很少。

My car was broken down and consequently I was late.= in consequence

Thus adv.如此，像这样;因此;于是

He sold his farm and thus he had enough money for his journey.他卖掉了农场，这样他就有足够的钱旅行了。

There has been no rain- thus, the crops are drying.天没下雨，因此庄稼要枯死了。

already和yet都是表示时间的状语副词。都表示“已经”，也都用于完成时。但already一般用于肯定句中而yet一般用于否定句和疑问句中。

eg: I have already finished my homework.我已经完成我的作业了。

Have you finished your homework yet?你已经完成作业了吗？

No, I haven’t finished it yet.不，没完成。

as可用作连词，引导比较、时间、原因及方式等四种状语从句，应注意的是，引导的比较状语从句往往有省略;引导的时间状语从句一般用一般现在时而不用一般将来时;引导原因状语从句时与“Because”和“since”引导的从句比较起起来语气最弱。

as作介词，意思时“作为”，“以……身份”。例如:He came to China as a tourist five years ago.

而表示像…一样时，like通常作介词用，而介词后面通常接名词，代名词和动名词。

as in Australia“和在澳大利亚一样”。

as……as AS adj(原级) AS AS adv(原级) AS

as soon as一……就 as soon as possible尽可能快地 as early as possible尽可能早的

as carefully as you can尽可能认真地

1。as是连词，表示“随着”的意义。lives是life的复数，意义是“生活”。

2。as是连词，表示“因为，由于”的意义。wanting是现在分词，表示主动意义，wanting to buy cars=who want to buy cars。

As的用法小结 as可以作连词、介词及关系代词和副词。现将其用法小结如下:

、 as作连词的用法: 1.作“在-------期间，当----的时候”引导时间状语从句.注意与when、 while的用法区别。①下列情形时,只用as,而不用when或while。 1)用于表示同一个人的两种动作交替进行,指一边----一边.如: The girl sings as she goes to school. He looked behind occasionally as he went forward in the forest. 2)表示两个同步发生的动作或行?意思是随着-----的发展.如: As time went on/ by, she became more and more beautiful. As children get older, they become more and more interested in everything. 3)表示两个短暂行为或事情几乎同时发生.如:I watched her as she read the book. I thought of it just as you opened your mouth. Just as the flying worm hit her face, she gave a loud cry. 4)接在名词后面表示某一个年龄段时.如: As a young man, he was active in sports.②when作"当……的时候"解,可以指较短的(一点)时间,也可指一段时间。如:When I was at college, I could speak several foreign languages. When the clock struck twelve, I had slept for 2hours.③ while常表示一段较长的时间或一个过程,强调主句谓语动词与从句谓语动词同时发生。如:Work while you work. Play while you play.

As=Since作"既然"、"由于"解,引导原因状语从句,常用来表示已为人们所知或显而易见的原因或理由。如: As he’s been ill for ages, I will help him. As/ Since you're not feeling well, you may stay at home. As he wasn't ready, we went without him.

As=in the way that作"像"、"按照……的方式"解,引导方式状语从句。如: Do as I told you. Remember, you must do everything as I do.

用于as--- as或not/ so/ as---- as中,前一个as是副词,后一个as是连词,引导比较状语从句。如:They helped the old as much as possible. I don't speak English so/ as well as she does.

表示虽然,尽管等,引导让步状语从句,常用倒装语序,模式为: adj./adv./ n. as 主语 谓语 主句。如: Young as he is, he knows much. Tired as they were, they walked on.

表示也------一样。 She is a doctor, as was her husband.(二)、 as作关系代词,引导定语从句,表示正如,这一点.如: He is very careful, as we all know. As is well-known, Taiwan belongs to China.另外,当先行词被the same, such等词修饰时,常用as来引导定语从句。如: Such a clever girl as she can learn anything quickly. I was reading the same book as he bought yesterday.

as作介词的用法. 1.表示好像。如:He dressed as a policeman. 2.表示作为当作。如:I found a job as a guide. 3.当某人是某身份时。如:As a child, she was sent to abroad. 4. as引导的介词短语大多用作状语,as译为"作为";少数情况可引起宾语补足语。如: As a Party member, I'll take the lead in everything.(状语) She works as a model.(状语) She has me as one of her best friends.(引起宾语补足语)(

作副词的用法 1表示与------等同。如:This dress is twice as expensive as that one. 2像，如等。如:As before, he remained unmoved.

用作连词表示“虽然”，两者大致同义，可换用，只是 although比 though更为正式: Though [Although] it was raining，we went there.虽然下着雨，但我们还是去了那儿。

Though [Although] it was barely four o’clock, the lights were already on.尽管才四点钟，灯已经亮了。

Though [Although] we are poor, we are still happy.我们虽然穷，仍然很快活。

二、用作副词 although一般不用作副词，而 though可用作副词，且一般放在句末(不放在句首)，意为“可是”、“不过”:

It’s hard work; I enjoy it though.工作很辛苦，可是我乐意干。

He is looking fit, though.但他看起来很健康。

You can count on him, though.不过你可以指靠他。

三、用于习语在 as though(好像，仿佛)，even though(即使，纵然)等固定短语中不能用 although:

She closed her eyes as though she were tired.她闭上眼，仿佛很疲劳似的。

We felt as though we had witnessed the whole thing.我们感到仿佛目击了整个这件事似的。

He is an honest man, I must say, even though I have opposed him.尽管我反对过他，我还得说他是一个诚实的人。

She was always afraid of men, even though she had lots of boyfriends.尽管她有很多男朋友，她总是害怕男人。

四、用于倒装 though引导的让步状语从句可用部分倒装的形式(注意:倒装后位于句首的名词之前不用冠词)，但 although一般不这样用:

Poor though I am, I can afford it.我虽穷，但这东西还是买得起的。

Child though he was, he did quite well.他虽是孩子，但干得很好。

另外注意: 1. although较正式，语气强 Although he was tired, he went on working.

2. although引导的从句放在主句前后均可，有时还可放在句中。

Although many difficulties are still ahead, we are determined to make greater achievements.尽管在前面的道路上还有许多困难，但是，我们决心要取得更大的成就。

He often helps me with my English although he is quite busy.尽管他相当忙，但是还常常帮我学英语。

3. although引导的从句不能与but, however连用，但可与yet, still连用。

不能说:Although he was old, but he worked hard.应把but去掉。

当然，保留but而去Although也可。注意:although的几不: although不能指假设的情况 although不能作并列连词 although不能作副词，放在词尾常用连词介绍.

好了，关于since的用法和since的用法 越具体越好的问题到这里结束啦，希望可以解决您的问题哈！

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