consult for、refer to 、look up都有“查找,查阅”的意思,它们表“查找,查阅”时的区别是?

一、consult很少和for连用
1.作为不及物动词时经常和with连用,If she had had a plan,she would have consult with an expert.如果她以前有这样的计划,她当时也就会找专家商量
2.作为及物动词时,conulst someone +句子,I have to consult my lawyer about the matter.关于这个问题我得咨询律师的意见.
二、refer to 一般指涉及,与什么相关.He never referred to his sisters in his letters.他在信里从未提到过他的姊妹.在法律文件中常用,Refer to the abovementioned letter I have some views.
三、look up 一般是查找字典、文献或资料等等.

look up 当然是指查字典，资料。