as、for和since的用法區(qū)別
as、for和since的用法區(qū)別
下面是小編整理的一些關(guān)于as、for和since的用法和區(qū)別, 希望對(duì)大家有幫助。
as和for都有“因?yàn)?rdquo;的意思.但是as比f(wàn)or的語(yǔ)氣弱.as用來(lái)表示顯而易見的原因,而for卻有一種解釋說(shuō)明的語(yǔ)氣.
例:as it is raining,we have to call of the meeting.
please forgive him,for he is only 13 years old.
for ,because,as,since這四個(gè)詞作為連詞,都有"因?yàn)?quot;的意思,但它們?cè)谟梅ㄉ嫌袇^(qū)別:
because 是從屬連詞,接表示直接原因的從句,一般放在主句的后面,也可放在主句前面,它表示的語(yǔ)氣最強(qiáng),在回答why的問(wèn)句時(shí),必須用because.
例如:The swimming pool won't be open today because they're making repairs.
游泳池今天不開放,因?yàn)樗麄冊(cè)谛蘩?
Why did you move to France?
你們?yōu)槭裁窗岬椒▏?guó)?
Because my father found work in Paris.
因?yàn)槲腋赣H在巴黎找到了工作.
注意:在英語(yǔ)中用了because后,不可再用so.
as 是從屬連詞,說(shuō)明一般的因果關(guān)系,語(yǔ)氣比because弱,說(shuō)明比較明顯的原因,它引導(dǎo)的從句通常放在句首,有時(shí)也可放在句末.
例如:As it is raining, you\'d better take a taxi.
天下雨了,你最好乘出租車.
since 意為"既然",表示對(duì)方已知的無(wú)需加以說(shuō)明的原因或事實(shí),語(yǔ)氣比because弱,但是比as 強(qiáng).
例如:Since we have no money, we can't buy that vase.
既然我們沒錢,我們就不能買那花瓶.
Since everybody is here, let's begin our party.
既然大家都到了,那就開始我們的聚會(huì)吧!
for 是并列連詞,用來(lái)附帶解釋說(shuō)明前一分句的原因或理由,for引導(dǎo)的并列句,一般放在所要說(shuō)明的句子的后面.
例如:I went to see him, for I had something to tell him.
我去見他,因?yàn)槲矣惺乱嬖V他.