Question

if表示"如果"时,后面是不是一定用anything?

Answer 1

条件状语从句中,

if条件句基本是用anything的,表“任何”.

例如：Go over your paper for mistakes.If there are any,underline them.

但是在疑问句中,当说话者希望对方给予肯定答复时,主句中也常用something

例如：Would you like something to eat if you feels hungry?

参考资料：欢迎指正.