stress is released. It is true that animals can sense earthquakes before they occur.,

　　[阅读障碍词]

　　define vt.规定；使明确vi.下定义

　　characterize vt.描述(人或物)的特性；具有......的特征

　　volcanic eruption火山喷发

　　habitation n．居住；住宅，家

　　crust n．地壳；外壳

　　collide vi.碰撞；相撞；冲突；抵触

　　Ⅰ.Match the word with its meaning.

　　1．cemetery A．灾难

　　2．strike B．墓地

　　3．wave C．袭击

　　4．violent D．波浪

　　5．occur E．发生

　　6．bury F．埋葬

　　7．furniture G．猛烈的；激烈的

　　8．cause H．引起；导致

　　9．experience I．家具

　　10．disaster J．经历

　　答案：1～5　BCDGE　6～10　FIHJA

　　Ⅱ.Write down the meaning of phrases in each sentence.

　　1．We fail one student per year on average.平均

2．If she insists on sleeping on the floor, put down a mattress to make her more comfortable. 放下