第十一篇： Error Correction （15 minutes）

　　More people die of tuberculosis（结核病）than 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 Europe's 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（抗菌素）
　　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 （a third of the
　　earth's population） 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.

　　答案：　　71. in→for
　　72. seventh→seven
　　73. were→was
　　74. now→then
　　75. 去掉Europe前的the
　　76. imported→exported
　　77. are→were
　　78. tuberculosis∧vanished→had
　　79. better→worse
　　80. constantly→constant