上海能泰实业有限公司:英语~~~急~~~8号就考试了~~~一定要帮忙

1、___the day went on,the weather got worse.
A.With B.since C. while D.as
答案:D 请重点分析A 和 D

With the day going on
with是一个介词，后面要加doing
as只是一个连词，后面可以跟从句，故此题只能选择D，不能选择A。

2、-I'm going to the post office.
-__you're there,can you get me some stamps?
A.as B. while C.because D.if
答案：B 请重点分析A 和B
while在这里有既然的意思，而A没有，故只能选择B

1.随着时间1天天过去了,天气也越来越糟糕
A的with主要表示伴随动作发生的人
with sb.
而D表伴随,随着时间过去,所以选D
2.应该添一个词表示时间同时发生
B可以,而A只表示动作的发生没有突出同时发生的时间性.

as 没有既然的意思

1 as在这里是连词，后面接一个完整的句子，意思中随着...
with是介词，后面接宾语，再接宾语补足语，如果这里要用with就要用with the day going on.

2、 while 引导的时间状语从句中的动词要是持续性动词或状态，as 后接的时间状语从句，动词是瞬间性动词，

as可以用来引导原因状语从句，表示因为。如果要用既然，最好用since,now that.

1. 'as the day went on' = as + time phrase, is a idiom

2. while you're there,can you get me some stamps?
'while' emphasis the state, the time during you are there.
'as' can mean 'because', but looking at the conversation, we know the person does not mean 'because you are going to the post office, so can you get me some stamps?'it is not very polite. 'While' is better.

1,with the day going on
2,while=when,as没这种用法