1、He insists that she come.他执意要她来。 2、He insists (
1、He insists that she come.他执意要她来。2、He insists (that) he was innocent.他坚持说他是无辜的。
为什么第一句中的that不能省略而第二句中就可以省略？
第一句中省略了一个should. He insists that she should come. 属于虚拟语态，表达意志、命令，前面的that不可省略。
而第二句属于宾语从句，相当于insist sth.，引导词that可以省略。
insist的第三人称单数
insist做动词有坚持;坚决主张等意思，那么你知道insist的第三人称单数是什么吗? 我为大家带来insist的第三人称单数和用法例句，供大家参考学习!
insist的第三人称单数：
insists
insist的用法：
insist的用法1：insist的基本意思是“坚持”,常用于坚持意见、看法、主张等。
insist的用法2：insist既可用作及物动词,也可用作不及物动词。作及物动词时,不能用名词、代词或动词不定式作宾语,只能接that引导的从句。若指尚未发生的动作,从句谓语常用虚拟语气(should+动词原形或直接用动词原形); 若表示一个已发生的动作或已存在的状态时,从句谓语多用陈述语气。that有时可以省略。
insist的用法3：insist用作不及物动词时,其后常须加介词on〔upon〕,然后接名词、代词或动名词。该动名词前可加物主代词或名词、人称代词的宾格形式作其逻辑主语,该动名词的否定形式是在其前直接加not。
insist第三人称单数例句：
1. Brothels, she insists, are the acceptable face of prostitution.
她坚持认为，妓院是卖淫可为人接受的一种形式。
2. The two places, he insists, are as different as chalk and cheese.
他坚持说那两个地方有天壤之别。
3. He insists he has struck no bargains for their release.
他坚称他没有就他们的获释达成过任何交易。
4. The African National Congress insists on a one-man, one-vote system.
非洲国民大会坚持实行一人一票的制度。
5. Germany, however, insists on restrictions on the import of Polish coal.
但是德国坚持对进口波兰煤炭加以限制.
6. He insists any tax cut be matched dollar-for-dollar with cuts in spending.
他坚持每一项减税都要和支出削减一一对应。
7. He insists he will not resign and will weather the storm.
他坚称自己不会辞职，一定渡过难关。
8. She insists on diverting to a village close to the airport.
她坚持改道去机场附近的一个村庄。
9. He insists that the police are acting even-handedly.
他坚称警方的行为不偏不倚。
10. "It's not that difficult," she insists.
“并没有那么困难，”她坚持说。
11. Western fears, he insists, are greatly exaggerated.
他坚持说，西方的恐惧被过分夸大了。
12. He insists on discipline in the classroom.
他一贯强调课堂纪律.
13. She insists on going to swim.
她执意要去 游泳 .
14. She, in her pig-headed way, insists that she is right and that everyone else is wrong.
她固执地坚持认为自己是对的，别人都是错的。
15. His only fundamental mistake, he insists, is that he was 20 years before his time.
他坚持认为，他仅有的根本性错误是他比时代超前了20年。
分享相关内容的知识扩展阅读：
求助suggest,insist用法的不同之处
求大神写的全面点，英语废动词suggest有如下一些用法:
一、 有"建议"的意思.advise， propose 也有此义,请比较它们用法的异同:
1) 都可接名词作宾语
She suggested / advised / proposed an early start. 她建议早一点出发.
We suggested / advised / proposed a visit to the museum the next day. 我们建议明天去参观博物馆.
2) 都可接动名词作宾语
I suggested / advised / proposed putting off the sports meet. 我建议将运动会延期.
They suggested / advised / proposed waiting until the proper time. 他们建议(我们)等到恰当的时机才行动.
3) 都可接that 宾语从句,that从句用should+动词原形,should可以省略.
She suggested / advised / proposed that the class meeting (should) not be held on Saturday. 她建议班会不要在星期六举行.
We suggested / advised / proposed that he (should) go and make an apology to his teacher. 我们建议他去向老师道歉.
4) advise 可接动词不定式复合宾语,propose 可接不定式作宾语.
I advised him to give up the foolish idea. = I suggested / proposed his / him giving up the foolish idea. 我建议他放弃那愚蠢的念头.(suggest和propose在口语里可接动名词的复合宾语).
We proposed to start early. = We proposed starting early. 我们建议早一点出发.(接不定式不用suggest和advise)
二、 有"提出"的意思.如:
He suggested a different plan to his boss. 他向老板提出了一个不同的计划.
Xiao Wang suggested a way to solve the problem. 小王提出了一个解决这个问题的办法.
三、 有"暗示、表明"的意思.其主语往往是事物,而不是人.
1)接名词或动名词作宾语.
The simple house suggested a modest income. 这座简朴的房子表明(房主的)收入并不高.
Her pale face suggested bad health. 她脸色苍白,看来身体不好.
The thought of summer suggests swimming. 一想到夏天就使人们联想到游泳.
2)接宾语从句,从句用陈述语气.如:
The decision suggested that he might bring his family. 这个决定表明他可以把家属带来.
The expression on his face suggested that he was very angry. 他脸上的表情表明他很生气.
四、 在主语从句It is suggested that... 及名词suggestion 后面表示具体建议的表语从句、同位语从句都应用should+动词原形,should可以省略.如:
It was suggested that we (should) give a performance at the party. 人们建议我们在晚会上表演节目.
His suggestion was that the debts (should) be paid off first. 他的建议是先把债务还清.
The doctors made a suggestion that the new hospital (should) not be set up on the hill. 医生们建议不要把新医院建在山上.
insist【用法一】 v.坚决要求；坚持要；一定要
例1：we insisted on his apology.
我们要他赔礼道歉.
例2：she insisted on seeing us home.
她坚持要送我们回家.
例3：i insisted on their arriving there ahead of time.
我坚持要他们提前赶到那.
注：1）insist on 后面不能接由“名词或代词 + 动词不定式”构成的复合宾语.不能说：the teacher insisted on all the compositions to be handed in on monday.
2）insist +宾语从句（从句中的谓语动词常用虚拟语气,即should + 动词原形或
省去should）.例如：the young men insisted that they （should） be sent to the front.
那些年轻人坚持要求被派往前线去.
【用法二】v.坚持认为,坚持说,强调
1） insist on +名词.
例如：he insisted on his innocence.
他坚持说自己无罪.
2）insist on + 宾语从句在表示一个客观事实时（谓语动词不用虚拟语气,而应用陈述语气）.
例如：the boy insisted that he hadn’t broken the glass.
那小男孩坚持说他没有打烂玻璃杯.
insist后的从句什么时候加should???????
当insist表示“坚持，坚决要求，执意”的时候，后面要跟虚拟语气，所以要加shoulde.g.She
insists
that
he
should
come.
她执意要他来。
而当insist表示
坚持说，固执己见的时候，不用虚拟语气，既不用加should
e.g.He
insisted
on
his
innocence./He
insisted
that
he
was
innocent.
他坚持说他是无辜的。
insist在虚拟语气中的用法,怎么判断它是"坚持",还是"强调"呢?
6.She insisted that she ( ) (send) to work in the faraway small town. 大家看这个句子括号里该怎么填呢?insisit是“坚持”之意时，从句往往是在描述一个事实，是发生了的事情，用真实语气；若是“坚决要求”之意时，从句往往是尚未发生的事情，用虚拟语气，也就是从句应是这样的模式：主语+should+ 动词原形... .其中should可以省略。
She insisted that she ( ) (send) to work in the faraway small town.含义是她坚决要求被派往偏远的小镇工作。答案是：(should ) be sent 。