1. I am going to yangzhou and stay there for a week.
____you are there ,would you please buy some books for me?
A.since B.while
答案为什么选B不选A呢？？

2.Amy plays chess___if not better than David.
A.as well as B. so well
答案我倒是能理解一点，就是不知道着其中 if not better than 的意思。

3.We will start____ you are ready.
A.until B.when
答案是B，可我觉得好象2个都可以

4.I think fishing is __than skiing
A.easier B.more easily

悬赏分是低了点，不过希望会解答的朋友可以帮帮忙。带着这些初中的问题去高中心里很不是滋味。
如果能有详细的解答，真是谢谢了

1. I am going to yangzhou and stay there for a week.
____you are there ,would you please buy some books for me?
A.since B.while
这里是while引导的时间状语从句.翻译当...时候.
since翻译为自从...;由于....
根据句意:选B

2.Amy plays chess___if not better than David.
A.as well as B. so well
as well as翻译为也...和..一样.
so well修饰play
not better than 翻译为:最多
不过这里不能把它拆散用.其实这里是一个省略了的句子.把句子还原为:if she does't play chess better than David.
句子翻译为:艾米下象棋下得好极了.如果不是比大伟下得好至少也和他一样好.
很抱歉.刚刚搞错了.这里是Amy 和 David棋艺的比较.
应选A.若选B体现不出对比性.



3.We will start____ you are ready.
A.until B.when
以until引导的句子要倒装的.这里you are ready.为陈述语序,没有倒装.所以不能选.
B when翻译为:当....时候.这里是以when引导的时间状语从句.
选B

4.I think fishing is __than skiing
A.easier B.more easily
than提示了要用比较级.
选A