Gmatprep上一道，怎么看正确答案就象错的

jessiebetty · 发表于 2006-8-17 11:46:00

　　　　　Some patients who do not respond to therapies for depression may simply have received inadequacy treatment, having, for example, been prescribed a drug at dosage too low to be effective or having been taken off a drug too soon.

正确答案是这样的，能否解释以下为什么对呢？

zimerman · 发表于 2006-8-17 11:48:00

没错 having been 和 having been 通过or 平行

时态和前面分句一样

gonghao · 发表于 2006-8-17 13:45:00

agree with Z(左罗)

嘿嘿

snowfield · 发表于 2006-8-20 13:28:00

那么having been短语就是作状语了，那么是何种功能的状语呢？伴随动作、结果或者功能？都不象啊？还是其他成分？这种用法有什么规则么？请赐教

[此贴子已经被作者于2006-8-20 13:29:36编辑过]

mymengming · 发表于 2006-8-20 16:46:00

Some patients (who do not respond to therapies for depression) may simply have received inadequacy treatment, having,( for example, )been prescribed a drug at dosage too low to be effective or having been taken off a drug too soon.

应该是结果状语从句

因为主句是完成时,不可能被伴随的阿

Gmatprep上一道，怎么看正确答案就象错的

Gmatprep上一道，怎么看正确答案就象错的

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