一、虚拟语气在动词arrange, command, demand, desire, insist, order, propose, request, require, suggest 等后面的宾语从句中,用"(should)+动词原形".例如:
I suggested that the meeting (should) be put off.
The doctor ordered that she (should) stay in bed for a few days.
They demanded that the black people should be treated as well as white people.
注意:insist作"力言"、"强调"解时,宾语从句不用虚拟语气.只有当insist作"坚持(应该)"解时,宾语从句才用虚拟语气.例如:
Mike insisted that he had never stolen anything.
I insisted that you give me my money back.
二、虚拟语气用于表语从句、同位语从句做advice, idea, order, demand, plan, proposal, suggestion, request 等名词的表语从句和同位语从句,其谓语动词要用虚拟语气的结构"(should)+动词原形".例如:
We all agreed to his suggestion that we (should)go to Beijing for sightseeing.
My idea is that he (should) do exercises first.