虚拟语气除主要用于非真实条件句外.还可用在部分主语从句.宾语从句.表语从句.同位语从句.定语从句和状语从句之中. A.名词性从句中的虚拟语气 主句中的动词.名词.形容词如表示要求.建议.命令或愿望等含义.与其相关的名词性从句(主语从句.宾语从句.表语从句和同位语从句)中的谓语动词要用虚拟语气. 1.主语从句中的虚拟语气 主语从句通常用于“It is + 形容词名词动词的-ed形式 + that ... 结构.主语从句中是否用虚拟语气取决于所用的形容词或动词的-ed形式.其谓语动词常用 “should + 动词原形 (美国英语常省略should.只用动词原形). ①表示建议或命令 It is important that we work out a study plan. 重要的是我们要制订出一个学习计划. It will be better that we meet some other time. 最好我们在另一个时间见面. It is suggested that each student sing a song in English. 有人建议每个学生都要唱一首英文歌曲. It is demanded that he should leave at once. 要求他立刻离开. ②表示惊讶 It is strange that he should have failed to see his own shortcomings. 真奇怪他竟看不到自己的缺点. It is a pity/shame that I should be at school instead of lying here in hospital. 真可惜.我应当在学校而不是躺在医院里. It is natural that you should forget it first. 你起先记不住是很自然的. 必背: 常见的要接含有虚拟语气主语从句的词 形容词:important, necessary, urgent, essential, vital, natural, strange, proper等 动词的-ed形式:arranged, suggested, ordered, required, desired, demanded, proposed等 It is necessary that the program be loaded into the computer. 有必要把程序输入电脑. It is strange that he should have learned so much in such a short time. 很奇怪他竟然在如此短的时间内学了那么多的东西. It is desired that we get everything ready by tonight. 希望一切在今晚前准备就绪. 【查看更多】