gwd 5-39 ( 已看过讨论)

huawang

  

Q39:

In 2000, a mere two dozen products accounted for half the increase in spending on prescription drugs, a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing many more prescriptions for higher-cost drugs.

a phenomenon that is explained not just because of more expensive drugs but by the fact that doctors are writing

a phenomenon that is explained not just by the fact that drugs are becoming more expensive but also by the fact that doctors are writing

a phenomenon occurring not just because of drugs that are becoming more expensive but because of doctors having also written

which occurred not just because drugs are becoming more expensive but doctors are also writing

which occurred not just because of more expensive drugs but because doctors have also written

答案是B

我想请问的是C，之前没有人问过。。。

我觉得因为主要句子中accounted是过去式，所以皆下来的a phenomenon应该是要解释一个包含在过去时间里的现象，所以doctors having also written（暗示在过去就写了许多prescriptions），比doctors are writing要来得合乎逻辑！不知道这样解释行不行。请大家指教。谢谢了。

anyname

C不对。

1。是because of drugs...and doctors...吗？不是吧，而是因为药贵和医师开高价处方这些事实吧。这是GMAT常考的trick，这叫冤有头，债有主，是什么因导致什么果得弄清楚吧。

2。且不说，because of+复杂句 是不好的

供参考

huawang

以下是引用anyname在2005-5-5 14:21:00的发言：

C不对。

1。是because of drugs...and doctors...吗？不是吧，而是因为药贵和医师开高价处方这些事实吧。这是GMAT常考的trick，这叫冤有头，债有主，是什么因导致什么果得弄清楚吧。

2。且不说，because of+复杂句 是不好的

供参考

谢谢回答，不过C是 not just because of drugs …… but because of doctors having also written……阿！（不是because of drugs...and doctors...）平行的方式跟B中的一样

虽然because of+是复杂句 但是如果逻辑上说得通的话是不是可以选，还是说GMAT中because of一定错呢？！

[此贴子已经被作者于2005-5-5 15:20:18编辑过]

new_new

我觉得C里面一个比较致命的错误就是N+having done的形式。可以搜索下OG，这种形式可以说基本都错。

huawang

  

谢谢回帖，但我我觉得在OG中找到的N+having done形式似乎没有new_new所说规则

OG中having最常犯得错是主语不明确，如

127. In theory, international civil servants at the United Nations are prohibited from continuing to draw salaries from their own governments; in practice, however, some governments merely substitute living allowances for their employees' paychecks. assigned by them to the United Nations.

(A) for their employees' paychecks, assigned by them

(B) for the paychecks of their employees who have been assigned （B）

(C) for the paychecks of their employees, having been assigned（having的主语不明确）

179. During the early years of European settlement on a continent that was viewed as "wilderness" by the newcomers, Native Americans, intimately knowing the ecology of the land. were a help in the rescuing of many Pilgrims and pioneers from hardship, or even death.

(C) Native Americans, with their intimate knowledge of the ecology of the land, helped to rescue(C)

(D) having intimate knowledge of the ecology of the land. Native Americans helped the rescue of（having的主语不明确，可能指newcomers或Native Americans）

但having在语明确的情况下是正确的，如

111. Egyptians are credited with having pioneered embalming methods as long ago as 2650

226. Pablo Picasso, the late Spanish painter, credited African art with having had a strong influence on his work.

回到正题上，所以我对C还是觉得很疑惑，请大家多包涵，再想想看，谢谢!!

[此贴子已经被作者于2005-5-5 16:57:11编辑过]

tonyadidas

楼上的MM，很勤奋哦！111和226总结得很好，但原因不是语意明确，而是credit这个词后面必须有having。其用法有二：作名词：give credit to sb for having done sth. 作动词：credit sb with having done sth. 在GMAT浩如烟海的语法资料中，我记得只有credit跟了having，要嘛就是have作实意动词（感觉上见到过，但实在说不出题号，等查实了再到这里跟帖吧）。NewNew说得很对的哈,having看到几乎就枪毙，还有being，（除了the distinction of being）.

其次，because of不是错误标志，相反在due to与because of 同时出现在选项中时选后者（当然because在就没什么好选得了）。

最后C的错误anyname说得很清楚了，because of doctors having....having修饰doctors对吧，那就是doctors造成了药价上涨？是医生开贵药这件事造成的对吧？这也就是because of不好的地方了--必须跟名词性成分，又像变达复杂意思。我想改成because of the fact that doctors are doing....应该是对的。

[此贴子已经被作者于2005-5-5 19:24:27编辑过]

huawang

  

真是太谢谢楼上三位anyname，new_new，tonyadidas大侠的帮助，尤其tonyadidas的一翻详细解释，把我的死脑经终于给转过来了，再次谢谢！