職稱英語考試語法指導(dǎo)
職稱英語考試語法指導(dǎo):條件狀語從句2
3) 原因狀語從句:
主要連接詞:because/ since / as
要點(diǎn):不要把連接詞 because與介詞短語because of ( + 名詞或-ing形式) 相混淆;
不要把表示原因的since與表示時(shí)間的since"自從…"相混淆;
不要把表示原因的as與表示時(shí)間的as"隨著…"相混淆;
順便提一下, because表示直接"因果關(guān)系",而since, as 是對(duì)事實(shí)的說明,主句和從句之間并不一定具有"因果關(guān)系".
例如:
As you are already 18 years old, you should know what to do and what not to do. (你已經(jīng)18歲了,應(yīng)該知道什么該干什么不該干。)
這個(gè)句子用because連接就不太合適。
…for 注意:一般只能放在主句后面,即主句 + for從句,例如:
He must have gone to bed, for it is too late. (他肯定已經(jīng)睡了;現(xiàn)在已經(jīng)很晚了。)—— 該句不能用because
now that / seeing that / considering that (由于…)
Seeing that this problem was settled, they proceeded to the next one.(鑒于這個(gè)問題已經(jīng)解決,他們開始進(jìn)行下一個(gè)問題。)
…in that(在于…)一般放在主句后面,例如:
Humans are superior to animals in that they can use languages as a tool to communicate. (人比動(dòng)物高等,因?yàn)槿四芤哉Z言作為工具進(jìn)行交際。)