(2017英语一Text 1)Enhanced security measures since then, combined with a rise in airline travel due to the improving economy and low oil prices, have resulted in long waits at major airports such as Chicago’s O’ Hare International.
词汇积累：enhance 加强;result in 导致;
句子分析：本句的主干为主谓宾结构，其中主语较复杂为enhanced security measures since then, combined with a rise in airline travel due to the improving economy and low oil prices,其中combined后为后置定语;除主干外本句中还包含such as 引出的同位语Chicago’s O’ Hare International。
参考译文：自那以后，安检措施的加强及选择航空旅行的人数因经济好转及油价下跌而上升，导致如芝加哥奥黑尔国际机场等一些主要机场排起漫长队伍的现象。
