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改革后的大学英语四级阅读新增的长篇阅读题型，是段落信息匹配题。篇章后附有10个句子，每句一题。每句所含的信息出自篇章的某一段落，要求考生找出与每句所含信息相匹配的段落。有的段落可能对应两题，有的段落可能不对应任何一题。以下是小编为大家整理的2014年英语六级阅读段落信息匹配题练习，供各位考生参考。 Words: 1,103 How Ozone Pollution Works A) The weather report on the radio or TV tells you that it is going to be sunny and hot and that an orange ozone alert has been issued. What is ozone? What does an orange alert mean? Why should you be concerned about it? In this article, we will examine what ozone is, how it is produced, what health hazards it poses and what you can do to reduce ozone pollution. B) Ozone is a molecule of three oxygen atoms bound together . It is unstable and highly reactive. Ozone is used as a bleach, a deodorizing agent, and a sterilization agent for air and drinking water. At low concentrations, it is toxic. Ozone is found naturally in small concentrations in the stratosphere, a layer of Earths upper atmosphere. In this upper atmosphere, ozone is made when ultraviolet light from the sun splits an oxygen molecule , forming two single oxygen atoms. If a freed atom collides with an oxygen molecule, it becomes ozone. Stratospheric ozone has been called good ozone because it protects the Earths surface from dangerous ultraviolet light. | 
