美国对青年运动的研究起始于四十——五十年代。青年一代在当时被称为“沉默”的一代。不少青年人对尖锐的社会问题宁愿置身事外。这个时期,社会学家主要研究职业定向。资料表明,社会出身在形成和实现个人生活计划的过程中具有决定性的作用。但是,多数资产阶级学者无视事实,他们认为,青年时期的年龄特点和心 The United States study of the youth movement started in the forties and fifties. The young generation was then called “silent” generation. Many young people would rather stay out of sharp social issues. During this period, sociologists mainly studied career orientation. The data show that social origin plays a decisive role in the process of forming and implementing individual life plans. However, most bourgeois scholars ignore the fact that they believe that the age characteristics and heart of youth