Question

【题目】—Our teachers and parents always warn us not to smoke.

—Yes, actually, the risk of heart disease is a powerful argument ____ smoking.

A. against B. for

C. into D. at

Answer 1

【答案】A

【解析】句意：--我们的老师总是警告我们不要抽烟。--是的，实际上，心脏病的危险是反对抽烟的有力论据。 四个介词的含义分别是：A. against反对，B for为了，C into在…里面，D at在…地方，所以选A。