since作为原因讲的用法?请举例

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/01 07:08:04
since作为原因讲的用法?请举例
xX[OG+#UjeC%RJԷVC/xE^e$1 `M1BvfO~gf}B6>Ta={w7ge;]*ϭ_ijygS]ݩo& 7nu{칎>Q&bmXׂQl 3;?g|gs.&2~a U"K16+U;w;wvՊbxQ_ƟUDcwXLH^I7e%b'v MxX9tSL<{ȋǺb3D>hK6F}whL - #0F=.ŸW[9y}~xPî |n|a2r G^5=G~i!Ya$|5Cϝ@D_.nzoFʹ\A|:^ܒsE4 R"gJ'W 8@6U|͛ZHSYWzVOs ף' U1KZ,ٚci3a4 }y`H+ϴ|ۥpC&BF:酪i_- K8A`Dx@Qr͝(^foI]iP̕\ly?}@Xʣ6$&Z'}h#~x)~FOͫDnjg;L֗ޗ1"_ޢA6hJ錼۠N2AFJk8Υ.cp7MnٍV4-7'yf8w8*c d{K\N^S_[ |~i>>9W00j||Ѩv58~,' 皃fИ>0`@XlFԔv@VQ9< f/9Ltd/y=4h

since作为原因讲的用法?请举例
since作为原因讲的用法?
请举例

since作为原因讲的用法?请举例
since是一个用法极活跃的词,现归纳如下:
1. 用作介词,意思是“从……以来;自从”,常与完成时连用. I haven't heard from her since last year. 自去年以来我没有收到她的来信.
2. 用作副词,意思是“从那时以来”.
I saw him last year, but we haven't met since. 我在去年见到过他,从那以后我们就没有见面. C&g {:]#B
3. 用作连词,意思是“从……以来;由于;既然”等. He has been ill since I saw him last. 从上次我见他以来,他一直在生病.
Since you have finished the work, let's go to the park. 既然你已把工作做完了,我们去公园吧.
since表示原因时,语气比because弱,表示的原因是对方已知的,所说明的有时不是根本的或直接的原因,是附带的原因,一般把它译成“既然;鉴于”.since引导的从句往往放在主句之前.例如:
The fisherman said,“Since I must die, I must... ” 渔夫说:“既然我非死不可,那我就死好了……”
【注意】
①在现在完成时中,since后接时间点或从句,而for只接时间段,可以说since 1999, since six o'clock, since we came here last year; for two days, for a long time, for a week等,但不能说成since two years, for last week等.
②在“It is+some time+since-从句(过去时)”结构中,用“It is...”比用“It has been...”更为常用.而且在该结构中since-从句不能用否定式.比较: It's long time since you didn't come to see me. (×) It's long time since you came to see me. (√)
③since短语通常不能同一般现在时连用.比较:
He is here since five o'clock. (×)
He has been here since five o'clock. (√) I
但当句子主语为it时,或句子所表示的是一种客观事实时,含since短语的句子谓语也可以采用一般现在时.
It's a long time since breakfast. 早饭之后已有多时了.
Ever since then, the bat comes out only at night. 从那时起,蝙蝠只在晚间出来.

7. since可以作“既然”讲,引导原因状语从句:Why do people come to his lectures since he is difficult to understand? 既然他的话很难听懂,为什么大家还要来听他的学术报告呢?
[讲与评] 在句型“It’s + 一段时间 + since从句 ”中,since引起时间状语从句中的谓语既可以用一时性动词,也可以用持续性...

全部展开

7. since可以作“既然”讲,引导原因状语从句:Why do people come to his lectures since he is difficult to understand? 既然他的话很难听懂,为什么大家还要来听他的学术报告呢?
[讲与评] 在句型“It’s + 一段时间 + since从句 ”中,since引起时间状语从句中的谓语既可以用一时性动词,也可以用持续性动词,但两种句子意思迥然不同,例如:
It’s two years since he joined the League. 他入团已经两年了。
It’s two years since he was a League member. 他退团已经两年了。

收起

since表示原因时,语气比because弱,表示的原因是对方已知的,所说明的有时不是根本的或直接的原因,是附带的原因,一般把它译成“既然;鉴于”。since引导的从句往往放在主句之前。例如:The fisherman said,“Since I must die, I must... ” 渔夫说:“既然我非死不可,那我就死好了……”...

全部展开

since表示原因时,语气比because弱,表示的原因是对方已知的,所说明的有时不是根本的或直接的原因,是附带的原因,一般把它译成“既然;鉴于”。since引导的从句往往放在主句之前。例如:The fisherman said,“Since I must die, I must... ” 渔夫说:“既然我非死不可,那我就死好了……”

收起

我给你几个例句,自己看吧:
I won't blame(责怪) you, since it has happened.
还有since的一个用法就是时间上的:
I've been studying hard since last exam.