【題目】今年4月,雅安地震給人們帶來(lái)巨大的災(zāi)難.下列有關(guān)地震的說(shuō)法正確的是(  )

A. 地震時(shí)由于板塊的碰撞或張裂引起的

B. 地震只能造成房屋倒塌、人員傷亡

C. 地震發(fā)生時(shí),應(yīng)迅速到房屋內(nèi)躲避

D. 我國(guó)已經(jīng)能夠準(zhǔn)確預(yù)報(bào)地震

【答案】A

【解析】

地質(zhì)學(xué)家經(jīng)過(guò)長(zhǎng)期研究,又提出了板塊構(gòu)造學(xué)說(shuō)。板塊構(gòu)造學(xué)說(shuō)認(rèn)為,地球巖石圈是由板塊拼合而成的。全球主要有六大板塊,其中太平洋板塊幾乎全部是海洋,其余板塊既包括大陸,又包括海洋。海洋與陸地的相對(duì)位置是不斷變化的。

一般來(lái)說(shuō),板塊的內(nèi)部比較穩(wěn)定,板塊與板塊交界的地帶,有的張裂拉伸,有的碰撞擠壓,地殼比較活躍。雅安地震是由印度洋板塊與亞歐板塊碰撞或張裂引起的,地震會(huì)造成房屋倒塌、人員傷亡,且能夠在很短的時(shí)間內(nèi)改變地表的形態(tài),F(xiàn)在人類還不能夠準(zhǔn)確預(yù)報(bào)地震,當(dāng)?shù)卣鸢l(fā)生時(shí),不要驚慌,要就近躲在課桌下面,并用書包護(hù)住頭部,千萬(wàn)不要恐懼,更不能從窗戶跳下。趕快跑到開闊的地方,遠(yuǎn)離建筑物。地震中不應(yīng)乘車逃命,遠(yuǎn)離交通工具。發(fā)生地震時(shí)應(yīng)遠(yuǎn)離建筑物、危險(xiǎn)品,就近采取防護(hù)措施,更不能躲進(jìn)防空洞。故選A。

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