一、四级核心词组:
例如have difficulty/trouble (in) doing something(做某事有困难)已经考过三次,需要注意的是,in可以省略,后面要使用动词的动名词形式。
1)2006年6月87题:Having spent some time in the city, he had no trouble (找到去历史博物馆的路).
解析:答案为(in) finding the way to the Museum of History,“历史博物馆”最好译为“the Museum of History”,专有名词注意大小写。
2)2009年6月87题:Soon after he transferred to the new school, Ali found that he had (很难跟上班里的同学)in math and English.
解析:答案为difficulty in catching up with his classmates,此题也考察了catch up with(跟上)这一四级核心词组。