大全362 totally confused me

362

  In a plan to stop the erosion of East Coast beaches,the Army Corps of Engineers proposed building parallel to shore abreakwater of rocks that would rise six feet above the waterline and act as a buffer, sothat it absorbs the energy of ccrashing waves and protecting the beaches.

A  act as a buffer,so that it abosrbs

B act like a buffer so as to absorb

C act as a buffer, absorbing

D acting as a buffer,absorbing

E acting like a buffer,absorb

confused 我的地方有如下：

1  V+ing引导的短语，首先是修饰什么成分？主句？还是它前面的名词？

   我看到答案里说，absorbing伴随rise and act。看不懂，是什么意思呀？

2  so that 和so as to 在用法上有什么区别？我看到答案里说前者多半错，为什么？是不是因为他们俩对其前面的逻辑主语有一定的要求呢？

谢谢NNS赐教了

1. ving可以做定语修饰前面的名词, 也可以做状语做伴随修饰前面的句子. 到这到题, 你可以把absorb 和rise平行.

2. 也不是绝对的. 记住有这个规律考试注意就是了.