概括：这道题是符热烈同学的课后英语练习题，主要是关于since的用法，指导老师为印老师。since，英语单词，副词 adv(常用于现在完成时或过去完成时)，介词 prep.(常用于现在完成时或过去完成时)自···以来，从···至今，自从，连接词 conj。
内容来自dedecms
题目：since的用法
解：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.
织梦好，好织梦
(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. copyright dedecms
(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,… dedecms.com
(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. copyright dedecms
(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. 织梦内容管理系统
(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. 本文来自织梦
(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.
举一反三
例1： since的用法[英语练习题]
思路提示：
since的用法主要有两点：一是表示“自从……以来”,二是表示“既然”之意.但如果只了解词的含义,而不了解其用法,在使用时就会造成错误.例如：I have not heard from him since I lived in Shanghai.
内容来自dedecms
不少人会望文生义,将该句译为：“自从我住在上海以来,就再也没有收到他的信了.”而实际上这个句子的译文并非如此,那么正确的含义是什么呢?
dedecms.com
下面谈谈since作连词引导时间状语从句的用法. 本文来自织梦
一、若since引导的状语从句的谓语动词是终止性的过去时,则从句表示的时间是“从动作开始的那一时刻起”.如： 织梦好，好织梦
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. copyright dedecms
这是最常见的一种用法,此处不再多述.
二、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的动词的过去时时,则从句表示的时间是“从那持续动作或状态结束时算起”.如：
本文来自织梦
I haven’t heard any noise since I slept.Sleep 为持续性动词,sleep的动作结束时,即“醒来”时,这句应译为“我醒后还未听到任何声音”.
John is now with his parents in New York,it is already three years since he was a teacher约翰现在和父母一起住在纽约,他不当教师已经三年了.
本文来自织梦
本文开始出现的那个句子就可以译为“自从我离开上海,就再也没有收到他的信.”这种译法常被人们误用,我们不妨再多举几个例子看看：
How long is it since you lived in Shanghai?你离开（没住在）上海多久了?
It is half a month since he was a League member.他退团（不当团员）半个月了. 织梦好，好织梦
It’s been quite some time since I was last in London我离开伦敦已很长时间了.
织梦内容管理系统
比较：He has written to me frequently since I was ill.自从我病愈以来,他屡次给我写信.（从句谓语为状态动词）
He has written to me frequently since I fell ill.自从我生病以来,他就屡次给我写信.（从句谓语为终止性动词） 内容来自dedecms
三、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.如： dedecms.com
I haven’t heard from him since he has lived there. copyright dedecms
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”. 内容来自dedecms
Since we have owned a car,we have gone camping every year.自从我们自己有了汽车,我们每年都去野营. 织梦好，好织梦
试比较：1.Since I’ve been at this school,we have had three headmasters.自从我到这所学校,我们已换了三个校长了. dedecms.com
Since I was at this school,they have had three headmasters.自从我离开这所学校,他们已换了三个校长了. 织梦内容管理系统
2.He has never been to see me since I have been ill.自从我生病以来,他从未来看过我.
copyright dedecms
He has never been to see me since I was ill.自从我病愈以来,他从未来看过我.
由此可见,since引导的从句持续动词的一般过去时和现在完成时所表示的意思恰好相反.换言之,前者以肯定的语法形式反映着否定的逻辑内容,而后者的形式与内容是一致的. copyright dedecms
至于It is +一段时间+since…的句型与It has been +一段时间+since…意思相同.前者是规范说法,后者是口语说法.
织梦内容管理系统
应注意的是,在这种结构中,since引导的从句绝对不能用否定式的谓语动词来表示否定意义,下面两句都错了：
copyright dedecms
It is a long time since he didn’t study English. 织梦内容管理系统
It’s two months since you didn’t come to see me.
dedecms.com
正确的说法为：
内容来自dedecms
It’s a long time since he studied English 他好久没学英语了.
内容来自dedecms
You haven’t come to see me for two months.你有两个月没来看我了.
dedecms.com
例2： SINCE的用法具体的[英语练习题]
思路提示：
since的四种用法 copyright dedecms
1） since +过去一个时间点（如具体的年、月、日期、钟点、1980,last month,half past six）.例如： dedecms.com
I have been here since 1989.1989起,我一直在这儿.
2） since +一段时间+ ago.例如：
I have been here since five months ago.我在这儿,已经有五个月了. 内容来自dedecms
3） since +从句.例如：
Great changes have taken place since you left.你走后,变化可大了.
dedecms.com
Great changes have taken place since we were here.我们走后,变化可大了.
dedecms.com
4） It is +一段时间+ since从句.例如： 本文来自织梦
It is two years since I became a postgraduate student.我考上研究生有两年了. copyright dedecms
例3： since的用法是什么?[英语练习题]
思路提示：
since的用法主要有两点：一是表示“自从……以来”,二是表示“既然”之意.但如果只了解词的含义,而不了解其用法,在使用时就会造成错误.例如：I have not heard from him since I lived in Shanghai. dedecms.com
不少人会望文生义,将该句译为：“自从我住在上海以来,就再也没有收到他的信了.”而实际上这个句子的译文并非如此,那么正确的含义是什么呢?
copyright dedecms
下面谈谈since作连词引导时间状语从句的用法.
一、若since引导的状语从句的谓语动词是终止性的过去时,则从句表示的时间是“从动作开始的那一时刻起”.如：
本文来自织梦
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.
织梦内容管理系统
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.
内容来自dedecms
这是最常见的一种用法,此处不再多述.
二、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的动词的过去时时,则从句表示的时间是“从那持续动作或状态结束时算起”.如：
I haven’t heard any noise since I slept.Sleep 为持续性动词,sleep的动作结束时,即“醒来”时,这句应译为“我醒后还未听到任何声音”. copyright dedecms
John is now with his parents in New York,it is already three years since he was a teacher约翰现在和父母一起住在纽约,他不当教师已经三年了.
本文开始出现的那个句子就可以译为“自从我离开上海,就再也没有收到他的信.”这种译法常被人们误用,我们不妨再多举几个例子看看：
copyright dedecms
How long is it since you lived in Shanghai?你离开（没住在）上海多久了? 织梦内容管理系统
It is half a month since he was a League member.他退团（不当团员）半个月了.
织梦内容管理系统
It’s been quite some time since I was last in London我离开伦敦已很长时间了.
本文来自织梦
比较：He has written to me frequently since I was ill.自从我病愈以来,他屡次给我写信.（从句谓语为状态动词） 内容来自dedecms
He has written to me frequently since I fell ill.自从我生病以来,他就屡次给我写信.（从句谓语为终止性动词）
dedecms.com
三、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.如：
I haven’t heard from him since he has lived there.
copyright dedecms
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”.
内容来自dedecms
Since we have owned a car,we have gone camping every year.自从我们自己有了汽车,我们每年都去野营.
试比较：1.Since I’ve been at this school,we have had three headmasters.自从我到这所学校,我们已换了三个校长了. copyright dedecms
Since I was at this school,they have had three headmasters.自从我离开这所学校,他们已换了三个校长了. 织梦内容管理系统
2.He has never been to see me since I have been ill.自从我生病以来,他从未来看过我.
He has never been to see me since I was ill.自从我病愈以来,他从未来看过我.
由此可见,since引导的从句持续动词的一般过去时和现在完成时所表示的意思恰好相反.换言之,前者以肯定的语法形式反映着否定的逻辑内容,而后者的形式与内容是一致的.
至于It is +一段时间+since…的句型与It has been +一段时间+since…意思相同.前者是规范说法,后者是口语说法. 织梦好，好织梦
应注意的是,在这种结构中,since引导的从句绝对不能用否定式的谓语动词来表示否定意义,下面两句都错了：
织梦好，好织梦
It is a long time since he didn’t study English.
内容来自dedecms
It’s two months since you didn’t come to see me.
dedecms.com
正确的说法为： 织梦好，好织梦
It’s a long time since he studied English 他好久没学英语了. 本文来自织梦
You haven’t come to see me for two months.你有两个月没来看我了.
例4： 【since的意义和用法】[英语练习题]
思路提示：
since 内容来自dedecms
KK:[] dedecms.com
DJ:[]
ad.(常用于现在完成时或过去完成时) dedecms.com
1.此后;从那时到现在 dedecms.com
She left school three years ago and has worked as a nurse ever since.
织梦好，好织梦
她三年前毕业,从那时起便一直当护士.
copyright dedecms
2.之前,以前 织梦好，好织梦
prep. dedecms.com
1.(常用于现在完成时或过去完成时)自...以来,从...至今 dedecms.com
I haven't heard from him since last year. 本文来自织梦
我自去年以来未曾收到过他的信. copyright dedecms
conj.
织梦好，好织梦
1.(常用于现在完成时或过去完成时)自...以来,从...至今 copyright dedecms
It's been ten years since they married. dedecms.com
他们结婚到现在已经十年了. 内容来自dedecms
She has been living a hard life since her husband died.
她自从丈夫死后,一直过着艰苦的生活.
织梦内容管理系统
2.既然;因为,由于 copyright dedecms
He must have taken the book since it isn't here. dedecms.com
他一定是把书拿走了,因为书已不在这里了.
Since it is so hot,let's go swimming.
本文来自织梦
既然天气这么热,我们去游泳吧.
本文来自织梦
以上结果由 Dr.eye译典通字典 提供 织梦内容管理系统
例5： since的各种用法[英语练习题]
思路提示：
Since 用法小结一．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 haven’t seen him since th...
织梦内容管理系统
相关思考练习题：
题1：关于 SINCE 的全部用法
点拨：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...
题2：Since 怎么用啊？
点拨：since的用法主要有两点：一是表示“自从……以来”，二是表示“既然”之意。但如果只了解词的含义，而不了解其用法，在使用时就会造成错误。例如：I have not heard from him since I lived in Shanghai. 不少人会望文生义，将该句译为：“自从我住在上...
题3：since用作副词，介词，连词时分别怎么使用
点拨：一、since 作为介词的用法：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。 1、since +过去一个时间点（如具体的年、月、日期、钟点、1980, last month, half past six）。例如： I ...
题4：since和because表示因为的时候用法的区别
点拨：since强调结果，because强调原因。 给你几个例子感受一下： She is crying because her little hamster just died. I really hope that she would come, since I miss her so so much! 也就是说，在有since的句子中，since后面紧跟着的内容（原...
题5：for和since的用法区别
点拨：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,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。 一、for词汇分析音标：[fə(r)] 释义： prep. 为，为了；因为；给；... 转载请注明出处: http://www.10000uw.com/view-83854-1.html
