虚拟语气应用于如下结构中: (1)一种定语从句:It’s time that+did (2)两种目的状语从句: so that/in order that+ can/may/could/might +do (3)三种随时变化句: ① wish 现在→did/were if only + 过去→had done as if/though 将来→could/would do ② would rather + 现在/将来→did/were 过去→had done ③ 现在:if+did/were, would+ do 过去:if+had done, would+ have done 将来:did if+ were to do, would+ do should do 注意:除了由if引导的虚拟条件句外.还有倒装条件句.即把were.had或should提前,混合时间句.虚实错综句.以及含蓄条件句.即由or, otherwise, with, without, but for来引导的. (4)四种名词性从句: ①当表语是important, natural, necessary, possible, strange, arranged, decided, demanded, ordered, requested, suggested, surprising, a pity, no woder时.主语从句要用虚拟语气.例: It’s important that we help each other. ②动词一坚持.两命令.三建议(advise, propose, suggest).四要求(ask, demand, request, require)后的宾语从句要用虚拟语气.例: He insisted that he be sent to the West. 注:insist, suggest时.从句应用陈述语气.如: Her pale face suggested that she was ill. ③idea, plan以及表示“坚持.命令.建议.要求 等动词的同源名词作主语时.表语从句用虚拟语气.例: My suggestion is that we hold a class meeting. ④idea, plan以及表示“坚持.命令.建议.要求 等动词的同源名词后的同位语从句要用虚拟语气.例: The office gave an order that his soldiers fight back bravely. 【查看更多】
