before the Earthquakes occur,the water without wind, the sunny day become cloudy suddenly,the temperature suddenly changed and the animals scurry.
when the earthquake happen we should not hurry run outside,if it occur on the street, we should ues our hands or handbage to protect our head,and if it during the class,don't be scared, don't run around the classroom or hurry to run outside. the students beside the door can run outside rapidly, the students in the middle and back can get into the desk as soon as possible,and using the school bag to protect the head.beside the students beside the wall must get close the wall corner and also ues the hand to protect the head.
翻译的很简单了,不知道符合不符合你的要求