简析用“of”还是用“for”

A Brief Analysis for the Use of "of" or "for

在有引导词it作形式主语的句型中,动词不定式带逻辑主语,引导逻辑主语用介词 of还是用介词 for 往往使人混淆不清,下面将其用法做一下简析,以供读者参考。

It makes us feel confused in using preposition of or for in the sentence pattern with formal subject 'it' in which the logcal subject is guided by the prepositions.In this thesis a brief analysis is given for the readers' reference.