since的用法，介词 since 的用法

1，介词 since 的用法

(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“Its / 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 Its / 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 hasnt 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.

介词 since 的用法

2，since的用法

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“Its / 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 Its / 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、当since用于否定句时,主句的谓v.可以是终止性动词.如 He hasnt 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 didnt finish his homework.

since的用法

3，since有什么用法

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。 (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“its / 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 its / 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 hasnt 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 didnt finish his homework.

since有什么用法

4，求关于since的所有用法包括语法

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。 (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“Its / 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 Its / 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 hasnt 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 didnt finish his homework.

主句用现在完成时，从句用过去式

5，since 的用法

这是我的教案，供你参考：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“Its / 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 Its / 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 hasnt 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 didnt 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

since可以是介词后面加名词，一般都是过去的事，句子的谓语用现在完成时。如I have lived here/have been living here since 1990. He has been reading since breakfast.也可以是连词，后面接过去时的句子，主句也用现在完成时，因此我们可以说since是现在完成时的标志。如 He has taught here /has been teaching here since he graduated from colleage.此外还有ever since.since then.主干都是现在完成时。

6，since的用法

prep. (介词)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，since then意为“从那以后”。adv. (副词)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)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。扩展资料：一、词义辨析prep. (介词)1、since, after, in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。2、since, for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。二、常见错误prep. (介词)误： It is now sixty-two years since World War Ⅱ. 第二次世界大战距今已有62年了。正： It is now fifty-six years since World War Ⅱ.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。

since是什么意思？用法是什么？

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“Its / 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 Its / 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 hasnt 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 didnt finish his homework.

since的用法：一．Since作为介词，后接某一确定的时间点，主句谓语动词是持续性动词，常与现在完成时态、现在完成进行时态或过去完成时态连用。例如： 1、He left the village in 1982 and I havent seen him since then.1982年他离开这个村子，从那以后我再没见过他。 2、Shes been working in a bank since leaving school.她中学毕业后就一直在一家银行工作。 3.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。二．Since作为副词，表示从过去以来、以后或到现在的情形或状态，常与现在完成时态连用。例如： 1．He left home two weeks ago and we havent heard from him since. 他两周前离开了家，到现在我们一直没有他的消息。 2．He came to Zhenjiang 6 years ago and has lived here (ever) since.他6年前来到镇江，从此便住在这里。三．since引导原因状语从句作为连词，since可引导原因状语从句，表示因为；既然；鉴于：例如： 1． He didnt come since he was busy.他因为忙，所以没有来。 2． Since this method doesnt work,lets try anoter.既然这种方法不行，我们就试用另一种吧。四．Since引导时间状语从句 1．若since引导的状语从句的谓语是终止性动词的过去时，则从句表示的时间是“从动作开始的那一时刻起”。例如： He has studied very hard since he came to our school.自从他来到我们学校，他学习就非常努力。 We have been missing them since they left here自从他们离开这里，我们就一直很想念他们。 2．若since引导的状语从句的谓语动词是持续性动词或表示状态动词的过去时时，则从句表示的时间是“从动作或状态结束时算起”。例如： I havent heard any noise since I slept. Sleep 为持续性动词，sleep的动作结束时，即“醒来”时，所以这句应译为“我醒后还未听到任何声音”。 3．若since引导的状语从句的谓语为持续性动词的现在完成时，则表示动作和状态延续到现在（说话时刻），其表示的时间的起点应从动作发生之时算起。例如：I havent heard from him since he has lived there。这里has lived表示动作的持续性，时间的起点应从：“开始居住”时算起。因此此句可理解为“自从他（开始）住在那儿起，我就一直没收到他的来信”。五．Since在特殊句型中的应用句型I：“It is （has been）+时间+since+持续性动词的过去时”，表示“自从……以来到现在已有多久。”例如： It has been quite some time since I was last in London.我上次离开伦敦至今颇有一段时间了。句型II：“It was+时间+since+持续性动词的过去完成时”,表示“从……到过去某时间点以来”，例如：It was three years since we had been here.那时我们在这已呆了三年。

她来我们学校三年了。可以这样说：It is three years since she came to our school. 也可以这样说：It has been three years since she came to our school.说明：1）since 是连词，汉译是“自从...以来”. 2）从过去一直延续到现在的动作用现完成时，时间状语用for...或since... 3）come是瞬间动词，不可以和表示一段的时间状语连用。然而我们想表达“来了一段时间了”这个意思，就改变说法，可以换词（就是把come 换成be in) 也可以换句型,可以换成it is(has been)+时间+since+主语+瞬间动词的过去式。那么“她来我们学校三年了。”可以翻译成：1. She has been in our school for three years. 2.It is (has been)three years since she came to our school. 3.Three years has passed since she came to our school.4. She came to our school three years ago.但不可以说：She has come to our school for three years.