for/at的用法;

for/at的用法;
for/at的用法;

for/at的用法;
1、at
prep.
(表示位置) 在,于; 到达,达到; 经,由; 在…旁,靠近; 在…里; 在…上; 在…方位
He was not at his office.
他不在办公室.
(表示时间)在,在…时刻[时辰,期间,阶段,时节]; 在…岁时
The meeting will open at 15 ∶ 00.
会议在下午三点钟开始.
(表示状态)处于…状态,在…情况下
The soldiers are standing at attention.
士兵们立正站着.
(表示方式)以…的方式; 通过一次…的动作
I was there at a bound.
我纵身一跃就到了那里.
(表示原因)因为,由于; 由于有,由于应…
We were frightened at the terrible sight.
看到这可怕的景象,我们被吓呆了.
(表示距离)从,在距离…处
I saw it at a distance.
我从远处看见了它.
(表示目标)朝,向,对着
He threw the key at me.
他把钥匙丢给我.
(表示环境)出席,参加
I remember him at a banquet on that night.
我记得那天晚上他参加了一个宴会.
(表示方向)在…方面
She is good at describing things or expressing ideas.
她善于描述事物或表达思想.
2、for
[f?:; ]
prep.
[表示目的]为了
struggle for existence
生存竞争
go out for a walk
出去散步
[表示目标、去向]向,往
leave for Shanghai
动身去上海
the train for Dalian
开往大连的火车
passengers for Beijing
去北京的旅客
He is getting on for sixty.
他快到六十岁了.
[表示对象、用途等]为,对于; 适于; 供; 属于...的; 给...的
books for children
儿童图书
an instrument for measuring pressure
测压力用的仪器
Not For Sale
非卖品(常用于商品标签)
That will be bad for your health.
那将有损于你的健康.
A letter for you!
你的信!
[表示愿望、爱好、特长等]对于,倾向于
long for freedom
渴望自由
have a liking for music
爱好音乐
an eye for beauty
审美的眼光
[表示理由、原因]由于,因为
jump for joy
高兴得跳起来
a city famous for its beauty
一个以美丽而著称的城市
代,替; 代表
teach for sb.
为某人代课
[表示时间、距离、数量等]达,计
The meeting lasted
(for) hours.会议继续了几个小时.
[表示赞成,支持]拥护,有利于
vote for sb.
投某人的票
They are all for him.
他们都拥护他.
[表示让步] 虽然,尽管
For all your explantions,I understand no better than before.
尽管你作了解释,我还是不懂.
至于,说到,就...而言
for my part
至于我,讲到我
He is tall for his age.
就他的年龄而言,他是个高个子.
So much for today.
今天就讲[做]这么多.
[表示等价、报酬、 赔偿或比例关系] 交换
sell for a dollar
以一美元卖掉
answer point for point
逐点答复
translate word for word
逐字翻译
[表示约定的时间]
an appointment forSaturday
星期六的约会
[表示身分]看作,当作,作为
take sb.for a fool
把某人看成傻瓜
give sth.up for lost
认定某物已丢失而不找寻
It was built for a pleasure boat.
这条船是作为游艇建造的.
[用于插入语,表示列举]
Many people want to buy it because,for one thing ,the price is low.
许多人想买它,原因之一就是价格便宜.
[与名词或代词连用,后接动词不定式,构成名词短语]
make way for the car to pass
给汽车让路
It is time for him to go.
他该走了.
词性变化
for
[f?:; ]
conj.
因为,由于
He felt no fear,for he was very brave.
他很勇敢,毫不畏惧.
【说明】 for 和 because 在表示“原因”的时候意思基本相同,一般可以互相代用.
继承用法
Because
多用于表示直接原因,而
for
[f?:; ]
可以表示原因又可以用于提出说明,语气比
because
[bi?z,z,bi?z]
轻得多.
Because
引导的从句一般放在主句后,有时也可放在主句前,而
for
[f?:; ]
引导的句子只能放在后面.另外在回答
Why
的问句时,只能用because不能用for.再者,for不能跟
not...but
这一结构连用,例:(正)
I did it not because I liked it but because I had to do it.
(误)
I did it not for I liked it but for I had to do it.