美国留学SSAT阅读真题一则

　　SSAT 阅读考试例题：

　　Radiation from the Sun continuously breaks two-atom oxygen molecules into single atoms. Some of these link up with ordinary oxygen molecules and form ozone. Some rejoin other free singles and revert to stable molecules. This Sun-energy process, if left undisturbed, maintains a fairly constant supply of ozone above the Earth’s surface. The ozone layer begins about eight miles up and is distributed thinly to about thirty miles up. This lofty umbrella of ozone shields the Earth from much of the Sun’

　　Some scientists believe that relatively small amount of synthetic chemicals, such as spray-can fluorocarbon or jet exhaust, reach the upper limits of the atmosphere and break down the three-atom ozone molecules. It is also believed that just one atom of the spray-can or get pollutant can affect vast numbers of ozone molecules. Weather research satellites have observed the ozone shield in great detail, but their data have neither put to rest the “doomsday theories” nor incited a global campaign to stop destroying the Earth’

　　SSAT阅读真题和答案就介绍到这，复习SSAT阅读的时候千万不能照葫芦画瓢，那样只会钻进死胡同，对自己的考试不利，复习SSAT阅读的王道还是应该塌下心来，从SSAT阅读真题当中找规律，这样才能让自己有一个质的飞跃。