这两个besides的题目为什么不一样呢？大家都来看看

dreamflyhigh

嗯嗯~不用谢，多体会下不同成分间的平行和具体的形式~晚安

wupenghui2000

同意，besides本身是介词，引导介词短语放于句中做状语，修饰主语或其它名词性成分，不需要与被修饰成分平行。

找到一道题。188. (GWD-7-Q33) The health benefits of tea have been the subject of much research; besides possibly preventing or inhibiting some forms of cancer, the brewed leaves of Camellia sinensis may also play a role in reducing the risk of heart disease and stroke。。besides可以引导句子中各种成分间的平行，不一定把它放到句首，就一定是主语与之平行。

-- by 会员 dreamflyhigh (2011/7/21 1:01:15)