of的用法
1:表示剥夺,除去
一:deprive sb. of his right
denude sb. of his possession (hope)
divest the baby of his clothes
rid him of this fear rob sb. of his wallet
defraud sb. of gold ring
cure sb. of cancer heal sb. of cancer
purify the nation clean the jar of crust
clarify the river of flowing rubbish
--get rid of, rid of, dispose of
2:of接直接宾语
-告诉-tell sb. of sth. inform sb. of sth warn sb. of fire
remind sb. of his duties acquaint sb. of sth. notify of..
-其他,劝服-persuade sb. of honesty assure sb. of the best seats convince sb. of sth.
-法律词汇-accuse sb. of burglary ; convict sb. of murder; suspect sb. of a theft
-reassure his wife of his safe arrival
3:of接间接宾语
request sth. of sb. expect sth. of sb. require sth. of sb.
ask a question of sb. be fearful of mistakes be jealous of wealthy persons be reminiscent of his past be patient of the enormous noise be guilty of robbery be innocent of robbery
4:of表示人物的特性,籍贯,特性或出生等
He is of Irish descend (ascent)
People of obscure origin (humble /noble)
Man of keen perception a man of moral integrity
5:固定词组
-say of, tale of, hear of, think of, learn of, savor of
The room smells of stale cabbage.
-brag of his achievements. Boast of his children
beware of pickpockets approve of the program
doubt of success complain of poor management
-be sure of be suspicious of be aware of
be confident of be proud of be ashamed of
be afraid of be capable of be lack of
be critical of be shortly of be conscious of
be ignorant of be wary of be cautious og
be appreciative of your advice
-regardless of , irrespective of ,不管….无视
in favor of
decide on three most popular leisure
activities irrespective of age
for 的用法
for
1. prep.
(1)因为，由于 for this reason
(2) 表示时间\距离长度； for three days； He ran for three miles.
(3) 为了 ：What do you come here for?
(4) 表示等价交换： He sold his house for 30,000 dollars.
(5) 开往；前往 We set off for London.
(6) 代；替；代表 Red is for danger.
(7) 用于for + 名词或代词 + to + 不定式动词的名词短语中
The bell rang for the lesson to begin.
2. conj 因为（表示推测或附加的原因， 前后为并列句）
It must have rained last night, for the ground is wet.
Kuntta ( a prisoner ) knew day broke, for he heard the birds singing.
for的用法的确很多，可用作介词和连词，介词用法尤为丰富。以下详细列出了用法和句例，供你参考。
for 1 preposition
1
used to say who is intended to get or use something, or where something is intended to be used
I've got a present for you.
Someone left a message for Vicky.
2
in order to help someone or something
I looked after the kids for them.
Let me carry that bag for you.
3
used to say what the purpose of an object, action etc is
for doing something
a knife for cutting bread
What did you do that for?
4
in order to have, do, get, or obtain something
Are you waiting for the bus?
the qualifications necessary for a career in broadcasting
5
used to say how long an action or situation continues for
Bake the cake for 40 minutes.
We had been talking for a good half hour.
6
used to talk about distance
We walked for miles.
Factories stretch for quite a way along the canal.
7
if something is arranged for a particular time, it is planned that it should happen then
I've invited them for 9 o'clock.
A special meeting has been arranged for 18th October.
8
used to say where a person, vehicle etc is going
I set off for work.
the train for Manchester
9
used to say what the price or value of something is
a cheque for a hundred pounds
The diamond was insured for two thousand dollars.
10
because of or as a result of something
If, for any reason, you cannot attend, please inform us.
We could hardly see for the mist.
11
used to say which thing or person your statement or question is related to
I'm sure she's the ideal person for the job.
The questions on this paper are too difficult for 10-year-olds.
12
used to say which person or thing your feelings are directed towards
I came away feeling sorry for poor old George.
My deep love for him still remains.
13
used to say at which meal you eat something
We had pasta for lunch.
14
used to say which company, team etc you belong to
I've worked for the BBC ever since I left university.
Deborah used to play for the A team.
15
supporting or in agreement with something or someone
We have studied the arguments for and against nuclear energy.
How many people voted for the proposal?
16
used to say what a word or sign means
What's the French word for 'happy'?
Red is for danger.
17
used to say that a particular quality of someone or something is surprising when you consider what they are
She looks young for her age.
It's cold for July.
18
as a representative of other people
Paisley claims to speak for the majority of local people.
19
used to say what is possible, difficult, necessary, unusual etc
for somebody/something to do something
It's unusual for Donald to be so bad-tempered.
There is an urgent need for someone to tackle this problem.
20
for each/every
used to say that there is a relationship between one amount and another
For each mistake, you'll lose half a point.
For every three people who agree, you'll find five who don't.
21
something is not for somebody
used to say that something is not the kind of thing that someone likes or will enjoy
City life is not for me.
This book is not for everyone.
22
it is (not) for somebody to do something
used to say whether it is someone's right or duty to do something
It's not for me to tell you what to do.
It will be for you to decide what action you should take.
23
if it wasn't/weren't for somebody/something
also if it hadn't been for somebody/something
used to say who or what prevents or prevented something from happening
If it hadn't been for you, I should have drowned.
24
that's/there's somebody/something for you!
spoken
a) used to say that a particular kind of behaviour or situation is typical of someone or something, especially when you do not expect anything better from that person or thing
I know it's outrageous, but that's Melissa for you.
b) used when you are annoyed or disappointed to say that something is the opposite of the quality you are mentioning
Well, there's gratitude for you! Here am I trying to help and you tell me not to interfere!
25
be (in) for it
spoken to be likely to be blamed or punished
You'll be in for it if she finds out what you've done!
see usage note since
for 2 conjunction
formal
used to introduce the reason for something
?synonym becauseI cannot tell whether she is old or young, for I have never seen her.He found it
increasingly difficult to read, for his eyesight was beginning to fail.
at的用法
1.动词+ at
arrive at抵达，call at访问某地， catch at（it）当场抓住， come at攻击， fire at向…开火，glance at瞟一眼， glare at怒目而视， grieve at忧伤，knock at敲，laugh at嘲笑， look at看一眼， pull at拉扯， rejoice at对…高兴，smile at向某人微笑， shoot at朝…射击， stare at怒目而视，thrust at刺向， tear at撕， tremble at颤抖，wonder at吃惊，work at工作。
2. be +形容词/过去分词+ at
be angry at恼怒于， be alarmed at对…保持警觉，be astonished at对…吃惊， be bad at不擅长， be clever at对某事很灵巧，be delighted at高兴，be disgusted at厌恶， be disappointed at对…失望，be good at擅长， be impatient at对…不够耐心， be mad at狂热于，be pleased at对…感到高兴， be present at出席， be satisfied at满意，be surprised at吃惊， be shocked at对…非常震惊，be terrified at受到…的恐吓，be quick at对…很机敏。
3.at+名词构成的词组
at a distance在一定距离，at a loss不知所措， at a time一次，at all一点也不，at any cost不惜一切代价，at best最好也只是，at first起初，at hand手头，at heart在内心里，at home在家；无拘束，at last最后，at least至少，at most最多，at once马上，at present目前。
参考资料：大脑