目的状语从句怎么用?

1个回答

  • 引导目的状语从句的连词:inorderthat,sothat(为了);forfearthat,incase,lest(以免)等.

    (1)inorderthat,sothat引导的目的状语从句中需用情态动词,现在时态常用may,can或will;过去时态常用could,should或might(含义教正式),有时也用would.inorderthat比so that正式,in order that引导的从句可位于主句前,也可位于主句后;而so that引导的从句只可位于主句后:

    Hewenttheletterbyairmailinorderthat(或so that)itmightreachthemingoodtime.

    这封信他航空寄去,以便他们能即使收到.

    (2)for fear that,in case,lest引导的目的状语从句中常用虚拟语气,从句谓语动词形式常为“should+动词原形”:

    Hetookhisraincoatwithhimincase(或for fear that或lest)itshouldrain.

    他带上了雨衣以免下雨.