even if even though though 和although它们之间的区别

题目

even if even though though 和although它们之间的区别
if,even though,though 和although它们之间的区别.最好能举例.还有它们能互相替换吗?

答案

even if 即使
Even if he is poor,he looks happy.
即令他穷,他看上去很快乐.
(经常用在句首)
even though即使
I like her even though she can be annoying.
尽管她有时很恼人,但我还是喜欢她.
（经常用在句中）
though虽然
although虽然
（这两个似乎没什么很大的区别.）
仅供参考