英语六级语法讲解：虚拟语气
以下是小编带来的英语六级语法讲解：虚拟语气，欢迎阅读。
虚拟语气的考点可以归纳如下：
1. (should)+动词原形的情形(已考)
2. if或but for等引导的条件句(已考)
3. wish, if only, it is time…的用法
(should)+动词原形的情形
1.在动词suggest, order, demand, propose, command, request, desire, insist, require, decide, promise, resolve, argue, maintain, determine, recommend, advise, advocate, persuade等表示“命令”、“建议”、“要求”动词后的.宾语从句中。
She insisted that the seats (should) be booked in advance. 她坚持要预定座位。
He advised that the doctor (should) be sent for. 他劝我们派人请医生。
注：如果上述动词作其他意思解释，或者说话者认为所讲的事是事实，要用陈述语气。
When asked why he declined our invitation, he suggested that he was not on good terms with the director.
真题重现
【CET-4:2006.6】The professor required that __________________(我们交研究报告)。
参考答案：we hand in our research report(s)
2.在advice, demand, order, necessity, resolution, decision, proposal, requirement, suggestion, idea, recommendation, request, plan,等名词后的主语从句或表语从句中------上面动词对应的名词
He issued the order that the troops (should) withdraw at once. 他命令部队马上撤退。
3.在形容词important, necessary, imperative, natural, urgent, essential, appropriate, desirable, vital, advisable, preferable, incredible以及短语no wonder, a pity等可以构成“It is +形容词(名词)+that”句型中。
It is necessary that some immediate effort (should) be made. 必须立即采取行动。
真题重现
【CET-6:2007.6】It is absolutely unfair that these children ______(被剥夺了受教育的权利).
参考答案：These children (should) be deprived of the right to receive education.
