1.use是日常用语,基本意思是“用”“使用”,多指一种比较明显地、物质地消耗,有时也可指不含或含有很少的消费、消耗的意思,强调目的性与实际效益。
2.use是及物动词,接名词、代词作宾语。也可接由as短语或动词不定式充当补足语的复合宾语。use偶尔可接人作宾语,意为“利用某人”,即把某人作为手段或工具。
3.used to仅用于一般过去时,表示过去常常发生的事,否定式为used not to或did not use to。

use for(v.+prep.)
作…用 employ sth for (a purpose)
▲use sth for sth
We used the seal's fur for coats.我们用海豹皮做大衣。
She decided to use it for gifts.她决定用它作礼物。
◇ 用于be ～ed 结构
Castor oil is used for medicine.蓖麻油可作药用。
Musk is used for perfume and stimulant.麝香可以用作香料和兴奋剂。
It can also be used for food.它也可食用。


used to
过去经常 become in the habit of sth or doing sth
We used to grow vegetables.我们过去是种蔬菜的。
Used you to live in the same house?过去你们是不是住在同一栋房子里?
I used to go swimming on Saturdays but now I don't.我过去常在星期六去游泳,可现在我不。
He used not to like fish, but now he does.他过去一直不喜欢吃鱼,但现在他喜欢了。
It used to be thought that the earth was flat.过去人们常认为地球是平的。
We get on pretty well. Better than we used to.我们相处得相当不错,比过去好了。

use up(v.+adv.)
用光 use sth till none is left
▲use sth⇔ up
We used up a whole roll of film.整整一卷胶片我们都用完了。
Jack used up his last dollar to see the movie.杰克为看电影把他最后一元钱也花掉了。
By this time he had used up all his savings.到这时,他的存款已全部用完。
◇ 用于be ～ed 结构
There isn't any more coal, it's all been used up.没有煤了,全都烧光了。
All those I had are used up.我所有的全用光了。

用作及物动词
▲S+～+n./pron.
May I use your knife for a while?我用一下你的小刀行吗?
The company now uses a computer to do all its accounts.这家公司现在使用电脑做账。
We use spoons to eat soup.我们用勺喝汤。
They also learned to use the abacus.他们还学习珠算。
Don't use the word too loosely.这个词不要用得太随便。
They've both got brains and like using them.他们两人脑子都好,也爱用脑子。
He didn't use his real name.他没有使用自己的真名字。
A novelist must be able to use the cultural heritage of his nation.小说家要善于利用他本国的文化遗产。
They begged him to use his influence.他们恳求他运用他的影响。
We'll try to get permission to use some of the funds.我们将设法获准动用部分基金。
Do you use piece rates or an hour wage?你们采用的是计件工资还是计时工资?
She uses every opportunity.她利用每一个机会。
The car's using too much oil.那辆汽车耗油太多。
He used me worse than ever.他待我比过去更糟了。
They used him like a beast of burden.他们把他当牛马一样看待。
◇ 用于be ～ed 结构
All the paper has been used.所有的纸张都用完了。
Of all these verbs the verb is the most extensively used.在这些动词中应用范围最广的是这个动词。
Large quantities of fuels are use by modern industry.大量的燃料都被现代工业消耗掉了。
The milk should be used before October 5.牛奶必须在10月5日前用掉。
用作宾补动词
▲S+～+n./pron.+as n.
You can use it as a bookmark. 你可以用它作书签。
The public has been asked not to use the places as rubbish dumps.已向公众提出要求,不要把这些地方当作垃圾堆。
We use oil now as a fuel.我们现在把石油当作燃料。
He used his job as a screen for his spying activities.他利用他的工作掩护进行间谍活动。
He used the coconut shell to take water.他用椰壳盛水。

use, apply
这两个词的共同意思是“使用”“利用”。其区别是:
1.apply强调的是“手段”; use强调的是“目的”。例如:
The old man used a mustard plaster to
relieve a chest pain.
那老人用芥末膏来消除胸痛。
The old man applied a mustard plaster
to the chest.
那老人把芥末膏涂在胸上。
2.apply不接人作宾语, use可接人作宾语,这时是视其为手段和工具。
use, avail, utilize
参见avail条。
use, employ
参见employ条。
used to, would
used to 和 would都可用来谈过去的习惯,其区别在于：used to 可用来谈动作,也可用来谈情况; would只能用来表示重复的动作。

used to是情态动词,只有过去式,表示过去存在的但现在已停止的情况或习惯动作。它后面接动词不定式,否定式是 used not to 或use(d) n't/to,也可用didn't use to。疑问式可以是Used+主语+(not) to...?但更常用 Did/Didn't+主语+use to...?。另外,在反意疑问句中,陈述部分用used to时,疑问部分的谓语动词可用use(d)n't 或 didn't,如果陈述部分是 didn't use to 或use(d)n't to时,疑问部分则只能分别用 did 或used。

1.use用作名词时,基本意思是“使用,应用”,引申可作“用途,效用”解。
2.use通常与介词of连用,有时of可省略。

adapt for use
(把…)改作…用 change so as to make suitable for
▲adapt sth for use
You can adapt the barn for use as a garage.你可以把谷仓改作车库。
Many city vehicles have been adapted for use as school buses.许多市内交通车都被改造为校用专车。
These tractors have been adapted for use in very cold climate.这些拖拉机经过改造已能在严寒气候下使用了。

(be) in use
在使用中 be(ing) used
Plastic is in widespread use.塑料已被广泛地使用。
If this is not in use,I'd like to borrow it.这个如果没有在用,我想借一下。
The line is in use.电话占线。
Is this dictionary in use?这本词典在用吗?
This textbook is no longer in use.这本教科书已不再使用了。

be of use
有用处,起作用 have the advantage
It is of great use for our work.这对我们的工作非常有用。
Many kinds of evidence are of no use in court.许多证据在法庭上并没有用。


bring into use
把…使用起来 make use of sth
▲bring sth into use
The newly built railway line was brought into use not long ago.新建成的铁路不久前通车了。


come into use
开始被使用 sth begin to be used
That method has only recently come into use.那种方法只是最近才开始使用的。
When did the railway come into common use?铁路是在什么时候开始普遍投入运营的?


have no use for
不需要某物; 讨厌 think that is of no value; dislike
I have no further use for the old clock.我不再需要这只旧钟。
The Society would be glad of any clothing or furniture that you have no use for, so that they can distribute it to families in need.那个社团一定会很高兴地接收你们用不着的衣服和家具,以便分配给需要的家庭。
She has no use for people who don't work seriously.她讨厌那些工作不认真的人。
I have no use for gossip of that kind.我讨厌那种流言蜚语。

make (full, good...) use of
利用 take advantage of
We should train them to make use of reference books.我们应训练他们学会使用参考书。
There is a great deal here that you can make use of.这里有许多东西你可利用。
She was making full use of her opportunity.她充分利用她的机会。
They made good use of the hotel's facilities.他们充分利用旅馆的设施。
He made good use of his spare time.他很好地利用他的业余时间。
He makes good use of every precious minute.他充分利用宝贵的每一分钟。


out of use
不再被使用 sth no longer to be used
The custom has gone out of use.那种风俗已被废弃。
The expression has gone out of use.那种表达方式已废弃不用。
But the machines imported from that country have been out of use.不过从那个国家进口的机器已经不用了。

put to use
使用某物 use sth
▲put sth to use
It is a pity to throw something away if it can be put to use.如果把能够使用的东西扔掉,那是很可惜的。
The waste, after being filtered, was put to good use.废水经过过滤后,得到了很好的利用。
He brushed away the dust from the old machine and discovered that it could still be put to use after some minor repairs.他把旧机器上的灰尘扫去后,发现这部机器稍加修理,还可使用。


There is no use in
做…也没用 no use by doing sth
There is no use in that.那样没有用。
There is no use in asking.问也没有用。

For use only in case of fire!只供火警时用!
Today gold has many uses in industry as a raw material.今天,黄金作为一种原材料在工业上具有多种用途。
Of what use is it to separate art from politics?艺术脱离了政治,那么这个艺术还有什么用处?
Is it of any use in indulging in empty talk?光是空谈有什么用?
This kind of rifle has gone out of use for a long time.这种步枪早就不用了。
▲It is no ～+v-ing
It's no use asking her, she doesn't know anything.问她毫无用处,她什么都不知道。
▲～+of n./v-ing
We've worked out a plan for the use of the land.我们制订了一项土地利用规划。
The use of the present tense in this sentence is wrong.这句中一般现在时的用法错了。
What's the use of worrying?着急有什么用呢?
This is for the use of students only.这是仅供学生使用的。
This room is for the use of teachers.这房间供教师使用。
The boy regained the use of his arm.这男孩恢复了手臂的功能。
He gave her the use of his camera.他让她使用他的照相机。
They let us have the use of their car while they were away.在他们外出期间,他们让我们使用他们的汽车。
We should attach importance to the use of the verbs when we learn a foreign language.当我们学习一门外语时,应该把重点放在动词的用法上。
The use of the staircase is allowed only to members of the staff.本楼梯仅供员工使用。
The doctor advised him against the use of sugar.大夫劝他不要吃糖。

use, avail
参见avail条。
use, usage
参见usage条。
下面各组中的句子意思相同：
But what's the use in telling you all these?
But what's the use telling you all these?
可是,跟你说这些有什么用?
It is no use crying over spilt milk.
It is of no use to cry over spilt milk.
覆水难收。
This is of no use to us.
(书面语)
This is useless to us.
(口语)
这个我们用不着。
There is no use to cry.
There is no use crying.
There is no use in crying.
It is no use crying.
It is no use in crying.
It is no use to cry.
哭是没用的。

［同义词］ v.  apply, employ, enjoy, exploit, spend n.  advantage, application, avail, worth
［词源］  ＜拉丁语usus(用)