雅思基础阅读难句解析-平行结构

　　14.We have tried to isolate some of the key factors that govern service quality, and offer examples of organizations that manage service well and of some that manage it poorly.

　　结构：本句有4个谓语动词：have/govern/manage/manage。其中主句的谓语动词为have，不定式to后面并列两个动词isolate和offer。两个of并列作为examples的后置定语。of some指代的是of some organizations。

　　本句可以拆分为：1) We have tried to isolate some of the key factors , and offer examples of organizations and of some.2) Factors govern service quality.3) Organizations manage service well.4) Organizations manage it poorly.

　　翻译：我们力图挑选出一些控制服务质量的关键因素，并且提供一些例子来说明某些机构把服务管理得很好，而有些却很差。