quire1)requiresth(ofsb)2)requiresbtodosth3)requiredoing主动表被动4)requirethat-clause〔虚拟语气:(should)+V原〕demand1)demandsthof/fromsb2)demandtodosth;demandtobedone3)demandthat-clause〔虚拟语气:(should)+V原〕quest1)requeststhof/fromsb2)requestsbtodosth3)requestthat-clause〔虚拟语气:(should)+V原〕注意点:demand,require和request都可以接that引导的宾语从句,并且在从句中要使用虚拟语气它们的不同点是:Aquire和request都可以接宾语+,而demand没有此种用法。Bquire+动名词时,主动形式的动名词具有被动意义,而demand,request无此种用法。