精选优质文档-倾情为你奉上教学课件写作提升练(六)概要写作1阅读下面短文,根据其内容写一篇60词左右的概要。A new,first-of-its-kind study examines the connection between teacher burnout and students stress levels.Researchers from the University of British Columbia collected saliva (唾液) samples from over 400 elementary school children,grades from four to seven,at 17 public schools.Cortisol (皮质醇) levels were then assessed from the samples as the hormone is commonly used as a biological indicator of stress.Correspondingly,teacher burnou