【至今无人能答】while和when,although和while的用法和意义区别在哪?有例题

【至今无人能答】while和when,although和while的用法和意义区别在哪?有例题
①先说while和when,while表示时间段,when表示时间点.请看例题：用when或while填空
1 i want the girls to experience that () they are young.
2 i used to love that film ( ) when i was a child.
1题答案是while,2题答案是when!可是两题表示的都是时间段啊!老师说不能互换,
②although和while都是有尽管的意思,但是,请看例题：
1 () the internet is of great help,i dont think it is a good idea to spend too much.
2 ()i really dont like art,i find his work impressive.
两个都是填while,而且老师还说不能用although!郁闷了,高三党感激不尽!
复制粘贴的就免了.我自己已经找到不少资料了但是还是不怎么理解.