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　　>>>拓展阅读：手把手教你六步搞定雅思阅读长难句分析

　　● 题目：

　　The second set of more specific changes that have led to the present concern about the distribution of health-care resources stems from the dramatic rise in health costs in most OECD countries, accompanied by large-scale demographic and social changes which have meant, to take one example, that elderly people are now major (and relatively very expensive) consumers of health-care resources. (剑4, test4 passage 3)

　　● 分析：

　　本句主句为“The second set of more specific changes stems from the dramatic rise in health costs in most OECD countries”;“that have led to the present concern about the distribution of health-care resources.”为定语从句，做changes的定语，关系词为that;“accompanied by large-scale demographic and social changes which have meant, to take one example, that elderly people are now major (and relatively very expensive) consumers of health-care resources.”为过去分词短语做状语，其中“which have meant, to take one example, that elderly people are now major (and relatively very expensive) consumers of health-care resources.”为定语从句，做changes的定语，关系词为which,“that elderly people are now major (and relatively very expensive) consumers of health-care resources.”为that引导的宾语从句，做mean的宾语。