为了帮助大家高效备考托福，小编为大家带来需要掌握的介词，希望对大家有所帮助。
　　一、带-ing词尾的介词 barring：except，not including除……外 concerning：about，regarding论及，关于excepting=except failing：in default of因缺少……;在缺少……时
　　following：after in time;as a sequel to在……以后 including：if we include如果包括我;……包括在内 pending：during/until在……期间/直到……为止 regarding：about，concerning，in respect of
　　二、成语介词 according tas stated by/ in proportion根据……/依照…… ahead of：further forward in space or time sb/sth; ealier tan sb/sth;further advanced than sb/sth
　　along with：in addition to;together with另外，加之，还有apart from：exceping，not considering; in addition to除……外/且莫说;除……之外尚有 as for：with regard to至于 as from：on and after(a specified time)从一特定时间开始 as of=as from as regards：about，concerning至于，就……而论 as twith regard to关于，至于 because of：on account of，by reason
　　but for：without the help or hindrane etc.of假如没有……(帮助或障碍等);要不是