1.We will give a prize to ( )passes the test.为何选whoever不选any

1. We will give a prize to ( )passes the test
如果用anyone,那后面还要加个who,变成：
We will give a prize to (anyone who )passes the test.
仔细听如果只用anyone：We will give a prize to (anyone )passes the test...passes 需要主语,而to后面又需要一个名词.就anyone在此行不通
整个《whoever passes the test〉成为to 后面的名词
2.glimpse是瞥见的意思,glance有一眼,一撇的意思

1.whover引导宾语从句
想用anyone也要说anyone who...
2.glance表示扫视，环顾
glimpse表示不经意瞥见

whoever=anyone who 泛指,任何人.
glance at 有”很快扫一眼”的意思．

1.如果选anyone 后面还要加who
2.glance at固定短语

glance at是固定用法
get a glimpse of