2. But particularly when viewed against America’s turbulent past, today’s social indices hardly suggest a dark and deteriorating social environment. [2006, text 1]
分析:
A.分析句子结构。该句的主句是today’s social indices hardly suggest a dark and deteriorating social environment,谓语动词是suggest。when引导时间状语从句。
B.分析省略结构。该句中的when引导时间状语从句为省略形式。当从句的主语与主句的主语一致时才可以省略,所以该从句的主语是today’s social indices。状语从句补充完整是when today’s social indices are viewed against America’s turbulent past。