全新大学英语六级冲关预测试卷

章节摘录

　　Influenza is caused by a virus transmitted from one person to another in droplets coughedor sneezed into the air. It is characterized by coldlike symptoms plus chills， fever， headaches，muscle aches， and fatigue. Most people recover completely in about a week. In addition to humans， influenza occurs in pigs， horses， and several other mammals as well as in certain wild and domesticated birds. At least some influenza viruses can jump from onespecies to another. For example， in late 1997 a strain of the influenza virus in chickens began to infecthumans in Hong Kong， leading to a massive effect to remove the strain. Many millions of people develop the flu each year. In most years less than ！ percent ofthose infected die. Nonetheless. this translates into large numbers. The United States Centersfor Disease Control and Prevention （CDC） estimates that influenza causes more than 20. 000deaths in the United States each year； combined， influenza and pneumonia are amongthe nations ten leading causes of death. During epidemics and pandemics， death rates soar.The influenza pandemic that occurred between 1918 and 1919- the worse on record　killedabout 500，000 people in the United States and more than 20 million people worldwide.

编辑推荐

　　《全新大学英语六级冲关预测试卷》　　特别提示　　在历年全国大学英语四六级考试中，西安交通大学出版社出版的“大学英语四六级710分冲关快训”系列图书准确把握四六级命题思路、命题规律和命题趋势，让考生利用有限的时间，直击考点。特别是其相关的预测试卷等部分内容多次命中四六级考试真题，无不印证了该系列书的权威性和有效性。　　临考新锐　　讲练益彰　　疑难点睛　　日日见功　　提高综合能力 破解疑难障碍 合理分配时间 一路过关夺隘

作者简介

《全新大学英语六级冲关预测试卷》汇集了从2007年到2009年的六套全新大学英语四级考试真题，让考生在冲刺阶段与四级考试零距离接触，熟悉题型了解命题规律。另外我们还精心设计了四套预测试题，方便考生进行自测。

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