对于大学英语四六级考试来说，语法非常重要。坚实的语法是英语水平进阶的充分必要条件。但现实情况是，不少人对语法学习并没有一个清晰的概念，甚至忽视语法学习。在此小编希望考生们重视起最语法的复习。今天文都四六级网给大家盘点2020年上半年大学英语六级语法复习：should，希望对您有所帮助。

大学英语六级语法复习：should

特殊的虚拟语气词——should

1) It is demanded / necessary / a pity + that…结构中的主语从句的谓语动词要用should 加动词原形， should 可省略。

句型：

(1)suggested

(2)It is　important　that…+ (should) do

(3) a pity

(1)suggested, ordered, proposed, required,　 demanded, requested, insisted; + (should) do

(2)important, necessary, natural, strange，a pity,　 a shame,　 no wonder

(3)It is suggested that we (should) hold a meeting next week.

It is necessary that he (should) come to our meeting tomorrow.

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。order, suggest, propose, require, demand, request, insist, command, insist + (should) do

I suggest that we (should) hold a meeting next week.

He insisted that he (should ) be sent there.

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。

The guard at gate insisted that everybody obey the rules.

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

在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。

My idea is that we (should) get more people to attend the conference.

I make a proposal that we (should) hold a meeting next week.

语法的学习过程会觉得条目繁多，很难记，而且枯燥无味，这种情况下，学习应该寻找的是语法的学习方法。掌握方法，在学习过程中才能克服困难。更多四级语法、六级语法请及时关注文都四六级网站。

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