问题
选择题
Chemicals in the body ______our food _____ into useful things.
A.break, into
B.break, up
C.break, down
D.break, off
答案
答案:C
考查短语辨析。break into 破门而入,break up 解散,break down 分解,break off 中断,句意:身体中的化学物质把我们的食物分解成有用的东西。所以选C。