53. There is no consensus on what role, if any, is played by acid rain in slowing the growth or damaging forests in the eastern United States. A. slowing the growth or damaging B. the damage or the slowing of the growth of C. the damage to or the slowness of the growth of D. damaged or slowed growth of E. damaging or slowing the growth of
2. 词法:(二级排除C,D) 用 in doing sth 来表达在什么方面做某事,类似的结构多次出现 ETS非常喜欢的一个结构:用 in doing sth 来表达在什么方面做某事,类似的结构多次出现
3. 动词和名词的区别. 名词常常表达意思不准确且wordy,动作有执行对象,常常表达的比较准确。
4. 逻辑意思: 介词 v ed 名词 , 过去分词是形容词性,重点放在后面的名词上了; 介词 V ing n. 重点强调前面的动名词 记住e正确答案中这样的并列是允许的(看意思,不要仅仅停留的表面形式上) in slowing the growth of forests and damaging the growth of forests