[请益] business week语法结构

adward

请各位牛人帮小妹解答这些简单的问题，节录Business week。

 

1.      When 10 of the largest U.S corporations and four environmental groups joined forces last January

       to lobby for federal regulations to restrict greenhouse-gas emissions,

       it was seen as a watershed in corporate environmentalism.

我以为it是虚主词但似乎没达到虚主词的要件，可也找不到可以代替前面哪个主语??

 

2.      To grasp the potential impact of just one really good weight-loss
drug, consider all the medicines taken to treat conditions caused or
exacerbated by obesity.

这个是看不懂哪个是主语??

谢谢各位

weidehou

1，在 gmat语法里他市错误的，it 不能指代前面说的一整个事情。

2。这个一个祈使句，类似于，do it now. 省略主语。

adward

感谢weidehou 

business week语法结构比起GMAT语法似乎没那个严谨,但阅读起来总会有跟GMAT语法不一样的疑惑。

business week语法结构比起GMAT语法似乎没那个严谨,但阅读起来总会有跟GMAT语法不一样的疑惑。

[此贴子已经被作者于2008-3-17 14:13:39编辑过]