to 為介詞：1.[表示方向等,與 from 相反]向,往,到：turn to the right 向右轉(zhuǎn)2.[表示時(shí)間的限度]直至；到…為止； 在…之前：to this day 直到今天3.[表示程度、情況、數(shù)量的限度]及于；至；達(dá)到：wet to the skin ...一般情況下，to后面跟的是名詞或名詞性從句時(shí)是介詞，后面跟動詞一般是不定式。不過在下面這些搭配中to是作為介詞的：look forword to, be used to ,get down to , object to, be devoted to ,make a contribution to ,resort to, react to, contribute to, be accustomed to, be committed to ,be exposed to ,be dedicated to , be opposed to , be contrary to ,with regard to ,with a view to ,as to ,in contrast to