Q5:

Citing the recent increase in earnings by several computer companies, economists feel that a cycle has begun in which personal computer users, especially corporate consumers, are replacing their PC’s with more powerful models.

1. a cycle has begun in which personal computer users
2. a cycle for personal computer users has begun in which they
3. there is a cycle beginning for personal computer users
4. it is the beginning of a cycle for personal computer users
5. personal computer users are in the beginning of a cycle when they

答案是a,第一遍是做对了的，现在却怎么也想不通，in which在句中做什么成份，是引导定语从句跳跃修饰cycle吗？还是相当于when引导状语从句？

另外，e为什么不对呢？语法上好像没什么毛病啊，是因为改变句意吗？

盼指点！！

which refers to "cycle".在从句中作状语，in the cycle ..users...are replaceing their PCs...

in which 从句避免头重脚轻，所以滞后。

e逻辑意思错！人是一个周期的开始！

What's more, the pronoun "they" does not have a clear antecedent.

指代经济学家还是个人电脑用户，但这点我也不是很肯定，，，

Open to discuss

in which可以用that来代替一下，因为从句太长，因此将动词提前。in which指代cycle

E：personal computer users are in the beginning of a cycle when they。

1.in the beginning of ？应该是at

2.cycle不能理解，什么cycle，是时间？事件？还是命运。后面直接结了when引导的时间状语从句，整句顺序错误，且意思不明确。

明白了！谢谢楼上各位！

对跳跃修饰的问题总是拿不准啊

那么b有什么错误吗？

A. a cycle has begun in which personal computer users

B. a cycle for personal computer users has begun in which they

我觉得在A中,后面的their 很明显是指代 PC.users的，而在b中用they 代替了,可能会造成指代不清的问题，有可能指代economists，是不是这样？