语法是考研英语的基础，这部分在硕士研究生英语考试中不再单独考查，但是语法知识贯穿在整个英语考卷的各个题型中。考研英语完型填空题会直接考查语法知识;考研英语阅读理解题和英译汉中有大量的长难句，这些句子只有具备一定的语法知识才能正确分析;考研英语作文中要写出正确无误的句子，也需要语法知识。这部分基础如果欠缺，其它的综合能力提高起来将会很慢，所以所有考生都务必重视考研语法的复习。下面新东方在线考研频道为大家分享：“2021考研英语语法基础知识点讲解：should”。
特殊虚拟语气词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
It is important that…+ (should) do
(2) 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.
以上就是为大家分享的“ 2021考研英语语法基础知识点讲解：should ”文章，考研英语语法复习起来应该有所侧重，必须有针对性，否则死扣考研英语语法，不但浪费时间，也不一定能有很好的效果。提醒考生在复习语法过程中要注意以下几个方面：有一本正规的语法书、重点掌握句法、以真题为依托。希望大家能在考研英语中考出高分。