⑨in order that, so that, in case, for fear that引导的目的状语从句中,谓语动词可用(should)do。
Keep quiet in case you (should) interrupt him.
She is now studying hard for fear that she (should) fail in the exam.
3.虚拟语气用于宾语从句
⑩wish后的宾语从句中:
发生时间 虚拟语气构成
发生在主句动作前 had+done
would/could/might/
should+have+done
与主句动作同时发生 过去时(be用were)
发生在主句动作后 would/could/might+do
would rather, had rather, would sooner之后的宾语从句中:
发生时间 虚拟语气构成
过去 had+done
现在 过去时(be用were)
将来 过去时(be用were)
I'd rather you had seen the film yesterday.
I'd rather you were here now.
虚拟语气在suggest (建议), arrange, command, demand, desire, insist, order, propose, request, require等后面的宾语从句中,用(should+) do形式。
4.虚拟语气用于主语从句
在“It is+adj./过去分词/n.+that ...”句型中,that引导的主语从句中谓语动词常用“(should+) do”形式。
常用于此结构的词有:
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