OG语法不明

flyemirate

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

(A) act as a buffer, so that it absorbs

(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

正确答案是C，平行结构我明白， 但是为什么The army corps of engineers是会建议building, absorbing, and protecting的？这逻辑不通啊。。。怎么会是去建议建造，吸收和保护的？后面两个平行动词主语应该是rock才对啊。。。

xiaoshuo199183

不是建议吸收，保护。absorbing和protecting都是修饰breakwater of rocks的。你可以先把rocks后面的that部分忽略，就能发现abosrbing the energy of...其实是作noun modifier修饰breakwater of rocks的