英语翻译since有哪些用法?它自从以后那个意思 是不是一定要和完成时态连用 我记得不用 能给个例句吗?还有以下两个句子翻译1.since very few people are actually concious of thee decision-making norms that the

英语翻译
since有哪些用法?它自从以后那个意思 是不是一定要和完成时态连用 我记得不用 能给个例句吗?还有以下两个句子翻译
1.since very few people are actually concious of thee decision-making norms that their cultures have taught them,they never consider that those norms are far from universal.
2.But since the other side feels the same way about their right way,the results of this teaching effort are usually profoundly non-educational.
这两句里since分别什么意思
好多啊 呵呵 麻烦好人帮帮忙

since 基本就俩解释,用法如下：
（1） 是你所说的 自 ...以后,一般的确都配着完成时使用.
I have started working here since last year.=> 自去年起我就开始在这里工作了（而且仍持续中,所以用完成进行时）
He has missed several classes since the beginning of the semester.=> 他从学期开始就缺了好几堂课.
（2） 是“因为、基于...缘故”的意思,你举出两个例句中的since 都是如此解释.
译文：
1.since very few people are actually concious of thee decision-making norms that their cultures have taught them,they never consider that those norms are far from universal.
因为很少人真正会意识到他们做决定的标准深受个人文化背景影响,他们从不会考虑这些标准并非举世通用的.
2.But since the other side feels the same way about their right way,the results of this teaching effort are usually profoundly non-educational.
但由于另外一边也同样认为他们的方法是正确的,这种教学方式通常离真正的教育相去甚远.

since+过去时间点：自从过去某时以来
since+过去式从句：自从某事发生以来
以上两种情况都用作现在完成时的时间背景
另外，since还可以表示原因，带一个原因状语从句，表示“由于……”、“既然……”
你给出的两句子中的since就是“由于……”、“既然……” 之意...

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since+过去时间点：自从过去某时以来
since+过去式从句：自从某事发生以来
以上两种情况都用作现在完成时的时间背景
另外，since还可以表示原因，带一个原因状语从句，表示“由于……”、“既然……”
你给出的两句子中的since就是“由于……”、“既然……” 之意

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since的意思/用法:
A: Conjunction =连接词
1. (a) Since you are going, I will go too. (b) Since you are still young, you won't understand politics. (c) 你以上的句子... = 因为
2. (a) Since he agreed to come,...

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since的意思/用法:
A: Conjunction =连接词
1. (a) Since you are going, I will go too. (b) Since you are still young, you won't understand politics. (c) 你以上的句子... = 因为
2. (a) Since he agreed to come, he has become ill. (c) He hasn't been home since he graduated. =自...以后
3. They have been friends ever since they were in grade school. 从...以来
B. Adverb 副词
1. (a) We fought and I have avoided him ever since. (b) They left town and haven't been here since.= 从...时起
2. We have since become friends. 后来
C. Preposition 介词
1. (a) She has been very unhappy ever since her quarrel with her boyfriend. (b) She's been skiing since childhood. (c) Since May it has only rained once 自从...
2. I've changed my address since last year. 自...至今
注意: 参阅英英字典才能够理解英语单词.不能过度依赖中文翻译!

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