the＋比較級,the ＋比較級,表“越……,就越……”,組成一個主從復(fù)合句.前句為從句,后句為主句.你的句子中The hotter the mixture,the quicker the reaction,在mixture和reaction都省略了IS.
e.g.:
The higher the plane goes,the smaller it becomes．飛機(jī)飛得越高,它就變得越小.
The more we read,the more we know．我們讀得越多,知道得就越多.
The lighter its colour is,the easier it is to pour the liquid．液體的顏色越淡,它就越容易倒出來.