（一）Fire Prevention on Campus
Fire Prevention on Campus
People are alarmed by the succession of campus fires in recent years. In each of these accidents, heavy casualties were reported - houses were burned down, students lost their lives, and properties were damaged. Faced with such a chilling fact, people keep asking, "What on earth results in these repeated tragedies?"
A brief survey of them reveals that human factors still prove to be the leading causes. For example, three of these fires were caused by the students' use of electric water-heaters. As students often leave the heaters unattended, the risks are rather high should the water in the bottle boil dry while no one is around to turn off the power. In other cases, fires were also caused by stoves, candles, cigarette butts, etc.
Since most of these disasters could have been prevented if proper precautions had been taken, students should be better educated on the importance and measures of fire control. The following three reminders are of particular importance for us students: First, learn how to use a fire extinguisher. Second, double-check candles, heaters, stoves and other electric appliances, and make sure there are no open flames before leaving rooms. Lastly, do not smoke in the dorm.
（1）此句What on earth results in these repeated tragedies?常可作为过渡句，引出下文
（2）注意描述有关火灾客观事实，多使用被动语态，如are alarmed by，were reported，were burned down，were damaged，Faced with。
详述预防火灾的三点措施，注意使用连接词语first, second, lastly。
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