六级冲刺备考的改错练习（11）

　　第十一篇： Error Correction 　　More people die of tuberculosisthan of any other disease caused by 　　a single agent. This has probably been the case in quite a while. During the --71. 　　early stages of the industrial revolution. Perhaps one in every seventh --72. 　　deaths in Europes crowded cities were caused by the disease. From --73. 　　now on, Though, western eyes, missing the global picture, saw the trouble going --74. 　　into decline. With occasional breaks for war, the rates of death and 　　infection in the Europe and America dropped steadily through the 19th and --75. 　　20th centuries. In the 1950s,the introduction of antibiotics 　　strengthened the trend in rich countries, and the antibiotics were allowed 　　to be imported to poor countries. Medical researchers declared victory and --76. 　　withdrew. They are wrong. In the mid-1980s the frequency of infections and deaths --77. 　　started to pick up again around the world. Where tuberculosis vanished, it --78. 　　came back; in many places where it had never been away, it grew better. The --79. 　　World Health Organization estimates that 1.7 billion people suffer from tuberculosis. Even when the infection rate 　　was falling, population growth kept the number of clinical cases more or 　　less constantly at 8 million a year. Around 3 million of those people --80. 　　died, nearly all of them in poor countries.