特殊形式的虚拟语气(1)should(可省略)+动词原形用于如下结构中的that从句中.用于表示意愿、建议、命令、提议、请求等动词后的that宾语从句中,例如:He ordered that parking be prohibited on Main street during the rush hour.他下令在(交通)高峰期间禁止在大街上停车.Tom insisted that his Leadership be recognized by all the boys.汤姆坚持让所有男孩接受他的领导.这类动词还有:ask要求advise建议arrange安排beg请求command命令decide决定demand要求desire渴望 determine决定insist坚持intend打算maintain坚持,主张move建议,动员propose提议object反对order命令prefer建议require需要request要求resolve下决心recommend推荐suggest建议stipulate约定,规定urge强调,促进vote公认,提议decree颁布(法令) pray请求B?用于It is+形容词或过去分词+主语从句中,例如:It is appropriate that some time be devoted to thorough study of the results of the Apollo mission.拿出时间对阿波罗登月计划的结果做详细研究是恰当的.This is their resolution that extra?curriculum activities be made part of their school life.这是他们的决议:要使得课外活动成为他们学校生活的一部分.这类形容词或分词有:advisable合理的decided决定的crucial关键的appropriate恰当的determined决定的commanded命令的arranged安排的essential紧要的,基本的complied遵照anxious焦急的imperative迫切的important重要的desirable合意的better较好的,更好insistent坚持的desired想要asked请求keen渴望的incredible难以置信的adamant坚定不移的natural自然的insisted坚持necessary必要的suggested建议urgent紧迫的ordered命令shocked震惊的vital极其重要的possible可能的strange奇怪的preferable好一点proposed提议requested要求的required要求的recommended推荐resolved决定的probable可能的pity可惜,憾事shame遗憾C?表示建议、要求、命令、请求等含义的名词引导表语从句和同位语从句,例如:The motion is that the remark of the last speaker be expunged from the record.该提议要求把最后一个发言的人的讲话从记录上除掉.这类名词常见的有:advice忠告decision决定demand要求desire要求、愿望insistence坚持motion提议necessity必要性order命令preference偏爱,选择proposal提议pray恳求recommendation推荐request要求requirement要求resolution决心suggestion劝告,忠告