1. Indeed, just in this past March the New England Journal of Medicine presents a “Special Report” by S. Jay Olshansky, David B. Allison and others that seemed to confirm such fears. 【结构分析】句子主干为：the New England Journal of Medicine presents a “Special Report”；“by S. Jay Olshansky, David B. Allison and others”与“that seemed to confirm such fears”一起充当““Special Report””的后置定语；“in this past March”为时间状语。 2. Cognitive researchers, who study various aspects of mental life, maintain that rewards often destroy creativity by encouraging dependence on approval and gifts from others. 【结构分析】句子主干为：Cognitive researchers maintain that…，that引导其后的部分充当maintain的宾语；“who study various aspects of mental life”为who引导的从句充当“Cognitive researchers”的后置定语；“by encouraging dependence on approval and gifts from others”为by引导的方式状语。
