句子对错if you donot work hard,or you will do well in it

题目

句子对错if you donot work hard,or you will do well in it
if you donot work hard,or you will do well in it 这个句子正确吗?

答案

不对,if从句主将从现,但单单去掉or语义不通,可以用unless从句
但unless加否定有点多余,所以可以把否定加到主句.
提供两种改法：
if you work hard ,you will do well in it.
或
unless you work hard,you will not do well in it.