2014届
高考英语一轮复习词汇天天练24（精析版） 1．the research mainly deals with the difficulty the students have ______ their attention pm their study all the time. a. to focus b. to be focused c. focusing d. focused 《答案》c 《解析》
试题分析：have difficulty (in)doing sth在做某事方面有困难 the students have…为定语从句，省略了连接词that.故选c 考点：have difficulty (in)doing sth在做某事方面有困难点评：本题重在分析句子内部结构，及句型的识别。此类题无非就是中间夹杂着从句，尤其是宾语从句，让学生没法分清楚内部的逻辑关系，这种能力的培养，需在老师的指点下，也需要学生不懂就要多问。
