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I'm on the way of teaching Englsih.

 
 
 

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1999年9月至2001年8月任教于凤阳县板桥中学,2000年10月当选为板桥中学团委书记。 2001年8辞职,同年八月受聘于私立无锡光华学校。2007年7月,受聘于安徽凤阳兴华学校,任政教主任,兼任校团委书记、中学部长。2008年先后被评为凤阳县首届“教坛新星”、“教学能手”、“骨干教师”。2011年9月,任教于安吉振民高级中学。2012年,兼任高一英语备课组长。

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as, because, for and since的区别  

2011-12-28 07:05:57|  分类: 教学资料 |  标签: |举报 |字号 订阅

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as, because, for and since的区别

as, because, for, since都可以用来表示“因为”。它们之间的区别主要体现在表示原因的程度上,广知度上。在剑桥字典中,它们的区别不是很大,而在我们中学教学中,则喜好考察。

because

because引导原因状语从句语气最强,表示直接原因,常用来回答由why提出的问题,所引导从句可放在主句前,也可放在主句后。例如:

"Why did you do it?" "Because Carlos told me to".

We can't go to Julia's party because we're going away that weekend.

Because he didn't catch the last bus, he had to walk home.

Why are you late for school ? Because I missed the first bus.

as

as “由于,鉴于” 主从并重,从句说明原因,主语说明结果。说明比较明显的原因。多用于日常语中,常译为“由于”,从句一般放于主句前。例如:

You can go first as you're the oldest.

As you don't feel well, you had better stay at home.

As he wasn't ready in time, we went without him.

I must stop writing now, as I have rather a lot of work to do.

As it was getting late, I decided to book into a hotel.     

As it is raining, you'd better take a taxi.

since

since “因为,既然” 侧重主句,主句表示显然的或已知的理由。强调说话者和听者双方都知道的原因,常译为“既然”,一般用在这样的句子里。例如:

Since we've got a few minutes to wait for the train, let's have a cup of coffee.

Since you are not feeling well, you may stay at home.

Since everybody is here, let's begin the meeting.

Since I am a boy, let me carry the case.

Since/As you are busy, you had better not go with us.

Since we have no money, we can't buy that vase.

for

for “因为,由于”表明附加或推断的理由,引导的分句前常有逗号。for分句不放句首.是用来附带解释或说明前一分句的原因和理由。例如:

Day breaks, for the cock crows.

It must have rained last night, for the ground is wet.

I won't go in, for my father is there.

He must be ill, for he is absent.

I went to see him, for I had something to tell him.

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