(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.

四、英语六级语法常考知识点：may

Only in this way,can you learn English well.

Only after being asked three times did he come to the meeting.

如果句子为主从复合句，则主句倒装，从句不倒装

Only when he is seriously ill,does he ever stay in bed.

1)表示允许或请求;表示没有把握的推测;may放在句首，表示祝愿。

May God bless you!

He might be at home.

注意：might表示推测时，不表示时态。只是可能性比may小。

2)成语：may/might as well，后面接不带to的不定式，意为"不妨"。

If that is the case,we may as well try.

典型例题

Peter come with us tonight,but he isn‘t very sure yet.

A.must　B.may C.can D.will

答案B.表可能性只能用may.此句意可从后半句推出。

五、英语六级语法常考知识点：表数量

（一）none无

1)none作主语，多与of构成短语none of。在答语中，none可单独使用。

Are there any pictures on the wall?None.

2)none作主语，谓语动词单复数均可。但如做表语，则其单复数与表语一致。

It is none of your business.

（二）few一些，少数