精选优质文档-倾情为你奉上2017年全国高考英语真题分类汇编-非谓语动词解析1. （北京卷27）. Many airlines now allow passengers to print their boarding passes online _ their valuable time. A. save B. saving C. to save D. saved答案：C, 分析：本句考查非谓语动词，to do不定式做目的状语，句意：“现在许多航空公司为了节省乘客宝贵的时间，允许乘客通过网络打印他们的登机牌。”所以选C。2. （北京卷30）. The national park has a large collection of wildlife, _ from butterflies to elephants. A. ranging B. range C. to range D. ranged 答案：A, 分析：本句考查非谓语动词，doing现在分词做方式状语，在
