虚拟语气词should的用法

我们通过一下的例句来讲讲虚拟语气词should的用法：

1） It is demanded / necessary / a pity + that…结构中的主语从句的谓语动词要用should 加动词原形， should 可省略。
句型：
　        (1)  suggested
It is　   (2)  important　that…+ (should) do
　　　　  (3)  a pity
   (1)suggested, ordered, proposed, required, demanded, requested, insisted；+ (should) do
   (2)important, necessary, natural, strange
  a pity,　 a shame,　no wonder
   (3)It is suggested that we (should) hold a meeting next week.
   It is necessary that he (should) come to our meeting tomorrow.
2）在宾语从句中的应用
　　在表示命令、建议、要求等一类动词后面的从句中。
order, suggest, propose, require, demand, request, insist, command, insist + (should) do
　I suggest that we (should) hold a meeting next week.
　He insisted that he (should ) be sent there.
　注意：如suggest, insist不表示"建议" 或"坚持要某人做某事时"，即它们用于其本意"暗示、表明"、"坚持认为"时，宾语从句用陈述语气。
　 The guard at gate insisted that everybody obey the rules.　
　判断改错:
　（错）  You pale face suggests that you (should) be ill.
　 (对)　Your pale face suggests that you are ill.
　 (错)　I insisted that you ( should) be wrong.
　 (对)　I insisted that you were wrong.
3）在表语从句，同位语从句中的应用
　　在suggestion, proposal, idea, plan, order, advice等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。
　　My idea is that we (should) get more people to attend the conference.
　　 I make a proposal that we (should) hold a meeting next week.