sure surely区别都是副词啊

SURE
adj.
（常与of, that连用）确信的；肯定的
I am sure that I put the money in the box.
我肯定把钱放在盒子里了.
Please make sure that the house is locked before you leave.
请你确信是锁上房间后才离开的.
I'm not sure about the practicality of their plan.
我还无法确定他们的那个计划的可行性如何.
（与to连用）一定的；必定的
We are sure to benefit from the new timetable.
我们肯定会得益于新的作息时间表.
adv.
一定地；必定地；无疑地
It sure was cold.
的确是冷.
"The teacher makes sure, too, that the child gets enough rest and play, along with his education."
教师还要保证每个孩子在接受教育的同时有充分的时间休息和游戏.
"He said he would come with his wife, and sure enough he did."
"他说他会带着妻子一起来的,果然他们来了."
surely只有副词
adv.
稳妥地；稳当地
The goat leaped surely from rock to rock.
山羊稳稳当当地从一块石头跳到另一块石头上.
一定地；当然
想必；谅必
Surely you locked the door? I would be surprised if you hadn't.
想必你一定锁上门了吧?如果你没有的话,我会很惊讶的.
sure一般用于肯定的回答
surely可以形容 形容词