介词不单独使用,常和动词、名词和形容词搭配使用,后接名词、动名词、what从句。常见的介词有:in,on,at,of,to,for,from等。一、in的基本用法与搭配1.动词+in believe in(信任),bring in(引起),involve in(涉及),liein(在于)。2.be+形容词+in in表示“在某些方面”:be absorbed in(专心致志),be diligent in(勤于),be experienced in(在……有经验)。3.in+名词in表示“处于某种状态”:in advance(提前),in Prepositions are not used alone, often with the verbs, nouns and adjectives used, followed by nouns, nouns, what clause. Common prepositions are: in, on, at, of, to, for, from and so on. First, in the basic usage and collocation 1. Verbs + in believe in (trust), bring in, cause in, liein in. 2.be + adjective + in in means “in some ways”: be absorbed in, be experienced in be diligent, be experienced in. 3.in + noun in means “in a certain state”: in advance, in