1 . 近年来，地球上的自然灾害越来越频发。假设你校英文报正在征集环保主题征文，请你写一封倡议书进行投稿，呼吁大家关注自然灾害并保护环境。
内容要点应包括:
1.列举自然灾害实例;
2.提出一些必要的防范措施;
3.号召大家采取行动保护地球。
注意: 词数100左右;开头已给出，不计入总词数

As we all know, over the past years, floods, earthquakes and sandstorms have happened frequently.

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________