1.Its charges produce lightning the result of millions of warm drops of water being thrown into comparable masses of ice crystals--hitting them,rolling over them,melting them,or being frozen by them into snow or hail.2.The storm begins with a single cloud,which developswhat Horace A.Byers of the University of Chicago has named the "mother cell".analyze the grammar of "which..."and"what..."?

熱心網友

1、它的電荷產生閃電，導致成千上萬的熱水滴被甩入相當多的冰晶中——撞擊、旋轉、融化，并被它們冷凍為雪或者冰雹。2、暴風雨開始于一個單一的云團，由它生成了由芝加哥大學的Horace A.Byers命名的“母細胞”。which引導一個定語從句，用來說明a single cloud，which就是指代a single cloud，在這個定語從句中又有一個what引導的賓語從句，what指代 mother cell。