透析英语重难点语法：特殊的虚拟语气词should
1)在主语从句中的应用It is demanded / necessary / a pity + that…等结构的主语从句，谓语动词用should
加动词原形，should 可省略。
It is 可用的词有三类 that (should)do suggested, ordered, required, proposed,
demanded, requested, insisted等 important, necessary, natural, imperative,
strange等 a pity, a shame, no wonder等
2)在宾语从句中的应用
在表示命令、建议、要求等一类动词后面的从句中，像order， suggest， propose， require， demand， request，
insist， command， insist + (should) do等。例如：
I suggest that we (should) hold a meeting next week. 我建议下周召开个会议。
He insisted that he (should ) be sent there.他要求被派到那儿去。
注意：如suggest， insist不表示"建议"
或"坚持要某人做某事时"，即它们用于其本意"暗示、表明"、"坚持认为"时，宾语从句用陈述语气。
判断改错： (错) You pale face suggests that you(should)be ill.
(对) Your pale face suggests that you are ill.
(错) I insisted that you(should)be wrong.
(对) I insisted that you were wrong.
3)在表语从句，同位语从句中的应用
suggestion， proposal， idea， plan， order，
advice等名词后面的表语从句、同位语从句中要用虚拟语气，即(should)+动词原形。例如：
My idea is that we(should)get more people to attend the
conference.我的想法是让更多的人来参加会议。
I make a proposal that we(should)hold a meeting next
week.我提了个建议，下周我们开个会。
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