Mr. Sawyer usually reads his newspaper at night.为什么要加形容词性物主代

这种所有格用法式英语的习惯,如he had his dinner。汉语里面就不这样强调,不说“他吃了他的饭。”,据说这也体现了英语国家对于物/财产的所有概念更加重视的一种语言体现。