In order to prove the harmful effect of alcohol,the teacher put a bug into a glass filled with alcohol, soon the bug died.The teacher asked a student, "What does this show?"The student answered, "It shows that people won't get parasites if they drink more alcohol."

为了证明酒精对生物的危害，老师把一只虫子放入装有酒精的杯子里，虫子很快就死了。老师问一个学生：“这说明了什么？”学生答道：“说明人多喝酒，就不会长虫子。”