Eng-ga-lish

1.AS IF : 猶如;好似
She treats him as if he were a stranger.
她待他如陌生人。
AS :當...時
As she left the room she remembered that book.
她離開房間時想起了那本書。
隨著
As the sun rose the fog dispersed.
太陽一出來,霧隨之消失。
因為
We didn't know what to do as we were just visiting there.
我們不知道該怎麼辦,因為當時我們僅僅在那裡作訪問。

2.e.g. We work hard so that we can have good results.(want to hv gd results is the reason)
We want to hv gd results so we work hard.(we work hard is the action)

3.In order TO will be used at the beginning of a sentence.(cant find 'in order that')
e.g. In order to hv gd results,we work hard.
We work hard so that we can have good results.

4.In order to: shown above
SO AS TO : 以便
The test questions are kept secret, so as to prevent cheating.
試題必須保密,以防作弊。
TO : (與原形動詞一起構成不定詞)
The government offered to give us financial help.
政府提出在經濟上給我們援助。