杭州交通信息网轴心国地图:选择最佳答案？请？英语小题目、？
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1i will let you know as snow as he -________
A arrives B is going to arrive
C will arrive D is arriving
2paul was doing his homework ______ there was a knock on the door .
who could it be ?
A befor B while C when D after
(请给原因？）
A arrives B is going to arrive
C will arrive D is arriving
2paul was doing his homework ______ there was a knock on the door .
who could it be ?
A befor B while C when D after
(请给原因？）
1,A: as--as--作为一种伴随状语出现，后面用现在时作为将来时表示。
2,B: while也有伴随的意思，正当一事发生时伴随着另一事也在进行，或者发生，有时也有对比的意思，另外还表示一种状态，表明“一边怎样，一边怎样”等意思.
其实像这一类词你根本不用太在意，这些是英语中最最简单的词，具体运用要看句子而言，不能一概而论，但也有此基本之意。
1.A
2.B actually when is also fine.but..still B would be better.
1A2B
1.A这是条件状语从句
2.B while表示正当什么什么时候，另一件事就发生了，有对比的意思。这种题一般都选这个。
1A 表条件 用一般现在时
2B when翻译成一...就...
1.A. 2.C