1.admit(承认)后通常要接动名词作宾语，而不接不定式。如果接不定式的话也通常是to be
Example：
We all admit him to be foolish.我们都认为他很蠢。
She admitted him to be right. 她承认他是对的。
admit doing (admit having done)承认做过的某事
I admit breaking\having broken the windows.我承认打碎了窗玻璃。
He admitted stealing\ having stolen the money.我承认我偷了那钱。
She admitted reading\ having read the letter,她承认读过那封信。
He admitted taking\ having taken the key. 他承认拿了钥匙。
注意：当admit与动态动词的动名词连用时，则非完成体结构与完成体结构含义相同。当admit与静态动词的动名词连用时，则只能使用非完成体形式：
I admit knowing him.我承认我认识他。
当admit 用于被动时be admitted to sth
意思是允许，接受接纳；被录取
Example :
She was admitted to the Party. 她被允许入党。
We congratulated him on his being admitted to the Party.
我们祝贺他入党。
Children under 18 are not admitted to the film.。十八岁以下的孩子不能看此电影。
Journalists are rarely admitted to the region.
新闻记者很少获准进入该地区。
Only Mimi's intimates were admitted to her boudoir.
只有米米的密友才被允许进入她的闺房。
He was studying in the hope of being admitted to an engineering college
他努力学习，希望能被一所工程学院录取。
He failed in being admitted to a university. Even then he was not downhearted.
尽管大学没考上，他也毫不气馁。
Later he was admitted to a famous art university.
后来他被一所著名的艺术大学录取了。（中考）
He was admitted to the Academie Culinaire de France
他获准加入法兰西厨艺学会。
Two crash victims were admitted to the local hospital.
两位车祸受害者已送进当地医院。
Women were only admitted into the club last year.
这家俱乐部去年才接纳女会员。
From the last three graduating classes, 16 seniors were admitted to MIT.
在上一届毕业的三个班级中，有16名高中生被麻省理工学院录取。（四级）
She was admitted to hospital with a soaring temperature
她因发高烧被送进医院。
Patients must be certified before they can be admitted to the hospital.
精神病院只接纳经证明患有精神病的人。
注意不能用be admitted to do sth. 但有be admitted to be +adj
[动词+名词短语+带to的不定式]
The appointment is now generally admitted to have been a mistake.
现在公认那次任命是一个错误。
2.admit (to)( doing )sth.承认做了某事
admit (to sth/to doing sth) | ~ (to sb) (that…)（常指勉强）承认
She admitted having driven the car without insurance.
她供认驾驶了这辆没有保险的轿车。
She admits to being ignorant of it.
她承认对这件事一无所知。
He refused to admit to the other charges.
他拒不承认其他指控。
He admitted to the murder. 他供认了谋杀罪.
Before execution, he admitted to taking the lives of at least 35 more women
被处决之前，他承认另外还杀死过至少35名女性。
She admitted to having stolen the car.
她供认偷了那辆轿车。
She admits to being strict with her children.
她承认对自己的孩子很严厉。
She admitted to doing her bit.
她承认她尽了自己的力量。
Up to two thirds of 14 to 16 year olds admit to buying drink illegally
14到16岁的青少年中多达2/3的人承认非法买过酒。
Few people will admit to being racially prejudiced.
很少有人会承认自己有种族偏见。
I must admit to a prejudice in favour of British universities.
我得承认我对英国大学有所偏爱。
She would rather perjure herself than admit to her sins.
她宁愿在法庭上撒谎也不愿承认她的罪行。
I couldn't admit to my parents that I was finding the course difficult.
我无法向父母实话实说，我觉得这门课程很难。
I was beginning to admit to myself that our marriage was rolling toward the edge of a precipice
我内心开始承认我们的婚姻正走向危险的边缘。
Don't be afraid to admit to your mistakes.
不要怕认错。
They freely admit (that) they still have a lot to learn.
他们坦率承认，他们要学的东西还很多。
I couldn't admit to my parents that I was finding the course difficult.
我无法向父母实话实说，我觉得这门课程很难。
It was generally admitted that the government had acted too quickly.
普遍认为，政府行动过急。
3 admit of, 意为“容许”、“有…的可能”、“有…的余地” (此时句子主语通常是物而不是人)相当于allow；而admit作：容许进入，容纳得下，容许，承认：
Example ：
The matter admits of no delay. 这事刻不容缓。
The regulations admit of no exception.规章不容破例。
Your fault does not admit of any excuse.
你的过失不容辩白。
His conduct admits of no excuse.
他的行为不可原谅。
This case did not admit of being discussed in public.
这一案件不能公开谈论。
The regulations admit of no variation.
这些规则不容许作任何改变。
4.派生词admission 的用法
作为名词表示准许，允许，承认的意思。
多指允许某人进入某一建筑物或场所，或成为学校、俱乐部等的成员。还有“承认”的意思。
Admission is by invitation only.
凭请柬入场。
No admission without tickets. 无票不准进入。
Last admissions to the park are at 4 p.m.
公园最晚的入园时间是下午4点。
Gates open at 10.30am and admission is free.
早上10:30开门，免费入场。
When did she gain admission to the club?
她是何时获准加入这家俱乐部的？
They tried to get into the club but were refused admission.
他们试图进入俱乐部，但遭到拒绝。
The management reserves the right to refuse admission.
管理部门有权拒绝接收。
The chairman suffered the indignity of being refused admission to the meeting.
主席蒙受了被拒于会议之外的侮辱。
She failed to gain admission to the university of her choice.
她未获自己选择的大学录取。
She had applied for deferred admission to college.
她已申请延期入学。
Students apply for admission to a particular college
学生们申请上某所大学。
Do you think museums should charge for admission?
你认为博物馆应该收入场费吗？
Were you just trying to trap her into making some admission?
你刚才是想诱使她供认吗？
The admission shows the depth of worry among the Tories over the state of the economy
这一认可表明了保守党党内对经济状况的忧虑之深。
admission of承认
The company's silence on the subject has been taken as an admission of guilt.
在外界看来，公司在这个问题上保持沉默便是承认有罪。
She wanted some admission of guilt from her father.
她期待她父亲能够认罪。
The minister's resignation was an admission that she had lied.
这位部长辞职等于承认她自己撒过谎。
His admission of stealing the diamond surprised everyone.
他承认偷了那颗钻石，这让每个人都大吃一惊。
To resign now would be an admission of failure.
现在辞职会被认为是承认失败。
A clever lawyer can cozen the prisoner into an admission of guilt.
一个聪明的律师能施小计诱使囚犯承认有罪。
admittance n. [正式] 进入权
指进入某建筑物、机构等的场地。而admit是偏重于描述获准进入成为其中一员
Storage Room, No Admittance!
库房重地，闲人免进！
No admittance except on business.
非公莫入。
Hundreds of people were unable to gain admittance to the hall.
数以百计的人未能获准进入大厅。
All the tickets were sold out, so I was unable to gain admittance.
票都卖完了，我无法进场。
We had not been able to gain admittance to the flat.
我们未能获准进入公寓。
There is no admittance without a security pass.
无保安通行证不得入内。