Throwingtheirhatsintotheair,thefansofthewinningteamletoutloudshoutsofvictory.Tomakethiscake,you'llneed2eggs,175gsugarand175flour.为什么2个开头会不一样?一个是Throwing一个是Tomake就是一个是不定式，

Question

Throwing their hats into the air,the fans of the winning team let out loud shouts of victory.
To make this cake,you'll need 2 eggs,175g sugar and 175 flour.
为什么2个开头会不一样?
一个是Throwing一个是To make 就是一个是不定式，一个是ING的

Answer 1

这两句话都是复合句,前面一句也均是从句.
前一句首单词用动名词形式,表示两个动作同时发生,fans是一边扔帽子,一边喝彩；
后一句用不定式开头表示目的,“为了”制作蛋糕,你需要.