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since, for, because, as, now that 表原因的用法区别

发布时间:2020-03-01 21:31:26 来源:范文大全 收藏本文 下载本文 手机版

since, for, because, as, now that 表原因的用法区别 in that通常用now that,是既然的意思。 since,for,because,now that的用法和区别: 1.since(既然)语气较弱,强调已知的事实。

例:Since you can\'t answer the question, I\'ll ask someone else.既然你回答不出这个问题,我就问别人了。 2.for(因为)的用法:

for是并列连词,表示推断的原因,或对前一分句补充说明理由。

例:It must be morning for the birds are singing.一定是清晨了,因为鸟儿在叫。 3.because (因为)的用法:

because通常表示直接的原因。because引导的从句表示直接而明确的原因和理由,表示按因果关系的推断,语气很强,用来回答why的问题, 一般位于主句之后。 例:We couldn\'t go out because it was too cold.因为天气太冷,我们不能外出。 4.now that(既然)的用法:

now that同since相似,语气较弱,强调人们已知的事实。例:

Now that you are busy, let me do it for you.既然你忙,就让我给你做吧。 5.as意为“因为、由于”,语气比because弱,所引导的从句表示的是不言而喻、显而易见的原因和理由,其从句一般放在主句前,如:As it was late , we came back soon.(由于时间很晚了,我们很快就回来。)

区别:since和now that,表示事物发展的自然结果,特别是当对方大概已经了解其原因的情况下使用,表示既成事实的原因一般位于主句之前。注意:for是并列连词,引出的原因较间接,似乎是事后所想到的补充解释的理由,只陈述一般推断的理由,不一定表示产生结果的必然原因,主要放在两个并列句之间。because通常表示直接的原因。

As to 与 As for 用法小结 在英语中表示“就„„而论”“有关”或“至于”含义的词语颇多,其中 as to 和 as for 亦表此义,但二者用法不尽相同。

as to 的功能类似于 with regard to, regarding, on the matter of, concerning 等,常用于相当正式的语境中,尤其用于争论和做出决定时。可放于句首或与 wh- 疑问词引导的动词不定式和名词性从句连用(有时可省略),而 as for 无此种用法。例如:

As to the journey, we must decide about that later. 至于旅行,我们必须以后再作决定。

As to the flood, I have heard nothing. 至于那次水灾,我没听到什么。

Nobody could decide ( as to ) what to do. 谁也不能决定该做些什么。

He is very uncertain as to whether it\'s the right job for him. 关于他究竟是否适合做这项工作,他实在拿不准。

A question arose as to who should be the monitor. 关于谁当班长的问题出现了矛盾。

I want to find out as to whom this bicycle belongs to. 我要打听出来这辆自行车是谁的。

as to 有时用于表示 according to 的含义。例如: They sorted the eggs as to size and color. 他们按照大小和颜色将鸡蛋进行分类。

as for 和 as to 都可用于句首,引出一个与前一个话题稍微有些不同的话题,但 as for 在语体上不如 as to 正式,并且着重话题的转换,也就是说,它所引导的是前面尚未提到过的新的事情,因此它不能用于文章的开头。另外, as for 有时表达轻蔑的语气。例如:

We had a delightful weekend in the country.As for the traffic, we had no difficulty. 在乡下我们度过了一个愉快的周末。至于交通,我们没有遇到任何困难。

Much pasture land is under water; as for the grain, most of that has been ruined. 大部分的牧场都进了水,至于谷物,则大部分都被冲毁了。

You can have a bed; as for him, he\'ll have to sleep on the floor. 有一张床给你,至于他,就只能睡在地板上了。

As for him, I know nothing.

至于他,我一点也不了解。

As for this subject, I couldn\'t remember. 至于这个题目,我记不起来了。

As for you, I never want to see you here again. 至于你,我永远也不愿在此见到你。

in order to 与 so as to两个短语。它们一般都放在句中用于引导目的状语;但in order to 可以放在句首,而so as to 则一般不放在句首。

opt

加入生词本 vi.

选择, 抉择 opt to do sth.选择做某事

They opt for more holiday instead of more pay.他们选择了延长假期而不是增加工资。

习惯用语

opt for (从多种方案中)作出选择

opt in 决定参加

opt out (of) 决定不参加或退出

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since, for, because, as, now that 表原因的用法区别
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