洋气的麻辣烫店名:because since as for四者语气的比较？

当它们作为"因为"讲,

because>since>as>for

主要区别是在用法上
because
KK: []
DJ: []
conj.
1. 因为
He is absent because he is ill.
他因病缺席。

since
KK: []
DJ: []
ad.(常用于现在完成时或过去完成时)
1. 此后;从那时到现在
She left school three years ago and has worked as a nurse ever since.
她三年前毕业,从那时起便一直当护士。
2. 之前,以前
prep.
1. (常用于现在完成时或过去完成时)自...以来,从...至今
I haven't heard from him since last year.
我自去年以来未曾收到过他的信。
conj.
1. (常用于现在完成时或过去完成时)自...以来,从...至今
It's been ten years since they married.
他们结婚到现在已经十年了。
She has been living a hard life since her husband died.
她自从丈夫死后,一直过着艰苦的生活。
2. 既然;因为,由于
He must have taken the book since it isn't here.
他一定是把书拿走了,因为书已不在这里了。
Since it is so hot, let's go swimming.
既然天气这么热,我们去游泳吧。
as
KK: []
DJ: []
ad.
1. 跟...一样地,同样地
Sam is as rich as Alexander.
山姆像亚历山大一样富有。
2. 如同;例如
Such animals as foxes and squirrels have bushy tails.
有些动物,如狐和松鼠,有蓬松的尾巴。
prep.
1. 作为,以...的身份
She works as an interpreter in that company.
她在该公司里担任翻译员。
2. 当作
She didn't think much of him as a painter.
她对他作为一位画家评价不高。
3. 像;如同
The old woman was dressed as a young lady.
这位老妇人打扮得像一位年轻人。
conj.
1. 像...一样;依照;像
You ought to do as Paul tells you.
你应按照保罗吩咐的做。
The work is not so difficult as you imagine.
这工作不像你想像的那么困难。
2. 当...时
As she left the room she remembered that book.
她离开房间时想起了那本书。
3. 随着
As the sun rose the fog dispersed.
太阳一出来,雾随之消失。
4. 因为
We didn't know what to do as we were just visiting there.
我们不知道该怎么办,因为当时我们仅仅在那里作访问。
5. 虽然
Tired as he was, he sat up late.
他虽然疲倦,可仍然很晚才睡。
pron.
1. (与such,the same,as等连用,引导关系从句)与...相同的事物(或人)
He has earned as much money as I have.
他赚的钱和我赚的一样多。
She felt just the same as he did.
她和他的感受相同。
There is a general rise in prices such as occurred in the late 60's.
物价普遍上涨,跟六十年代末一样。
2. (引导从句,对前述内容作补充)本情况,该事实
She has married again, as was expected.
她已再婚,这是意料中的事。
We are tired, as anyone can see.
我们累了,这是有目共睹的。

for

prep.
1. 为,为了
They fought for national independence.
他们为民族独立而战。
This letter is for you.
这是你的信。
2. 代替;代表
We used boxes for chairs.
我们用箱子当椅子坐。
3. 因为,由于
I am sorry for what I said to you.
我后悔不该对你讲那些话。
4. 在(指定时间)
The meeting is arranged for 9 o'clock.
会议安排在九点钟。
5. (表示时间、距离等)达,计
You can see for miles from the roof.
你站在屋顶上可以看到数英里之外。
6. 对于,关于;在...方面
I am too old for the job.
我年纪太大,做不了这工作。
7. 为得到,为赢得
He sent the waiter for a packet of cigarettes.
他让侍者去拿一盒香烟。
8. 以...为代价;以...交换
He sold his car for 500 dollars.
他以五百元把车卖了。
9. 当作,作为
Do you take me for a millionaire?
你是不是把我当百万富翁?
10. 赞成;支持;倾向于
Are you for the government or against it?
你是支持还是反对政府?
11. 朝...方向去;往,向
He left for Taipei.
他出发去台北。
12. 就...而言
She is sophisticated for her age.
就年龄而言她是世故了一点。
conj.
1. 因为,由于
We must start early, for it will take two hours to drive to the airport.
我们得早点动身,因为开车去机场得花两个小时。