三、介词的用途 Functions
(一)介词一般不能单独充当句子成分。 Generally speaking, a preposition cannot be an element of a sentence by itself. (二)绝大多数介词后面总是带着名词、代词构成介词结构充 当状语、补语和定语。例如:
Most of the prepositions have to take a noun or a pronoun to form a prepositional phrase to serve as an adverbial adjunct, complement or attributive. For example:
他从北方来。 (做状语) (as an adverbial adjunct)
这是关于月亮的传说。 (做定语) (as an attributive)
这列火车开往上海。 (做补语) ( as a complement)
