people和police等词一样 是集体名词 如果是泛指人们 人群 要用复数形式 如果说There is one people.也对 但是people还有民族的意思 这个时候它就是一个普通的名词 可以加s e.g.:1.There are three people wandering around in the street.(人) 2.There are 56 peoples in China.(民族) 3.People all around the world are able to speak English.(人们)