Lei Feng was very helpful ,he always helped others at any time.请教这个句子为什知要用过去式表达,

问题描述:

Lei Feng was very helpful ,he always helped others at any time.请教这个句子为什知要用过去式表达,
always不是现在时的标志吗

always 表示 “总是”,根据表达需要,可以用于一般现在时,也可以用于一般过去时.
因为 雷锋 已经不在了,乐于助人 是属于过去的事,所以用过去式.