LZM E11-29

CasualWalk

Unlike a hurricane, which can be observed from within, a tordado is so small that such a study has not been practical.

B) that studying it that way has not been impractical
C) for such studies as this to have been impractical
D) as to not make such a study practical.
E) as to be impractical of study

答案A。LZM 说其它答案主语不一致。我选D，因为它看起来虽然别扭，但主语还是一
致的。我觉得A的完成时又不是很必要。为什么A对D不对呢？请指教。

joywzy

make的动作发起人不是tordado 。

CasualWalk

不是tornado makes such study not practical 吗？谢谢。

joywzy

以下是引用CasualWalk在2003-6-14 14:12:00的发言：
不是tornado makes such study not practical 吗？谢谢。

龙卷风能让研究实际吗？应该是人让研究更实际。

SO　AS　TO，　只能用于简单的系表结构，且主语和状语的主语要一致。

iselibra

我选的是e
我觉得a tornado is so small as to be impractical of study也说的通阿
a tornado is impractical of study.

createdream

E?  看起来就不顺眼。

（D）错  因为 不是 a tornada 使 such a study 不实际， 而是“a tornado is so small"使 such a study 不实际 。

Dinaxie

以下是引用iselibra在2003-9-14 13:47:00的发言：
我选的是e
我觉得a tornado is so small as to be impractical of study也说的通阿
a tornado is impractical of study.

同问？

johnnywoods

为什么(B)不行呢?