大学英语六级改错试题及答案（8）

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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 early stages of S1. ________

the industrial revolution, perhaps one in every seventh S2. ________

deaths in Europe's crowded cities were caused by the S3. ________

disease. From now on, though, western eyes, missing the S4. ________

global picture, saw the trouble going into decline. With

occasional breaks for war, the rates of death and

infection in the Europe and America dropped steadily S5. ________

through the 19th and 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 S6. ________

declared victory and withdrew.

They are wrong. In the mid-1980s the frequency of S7. ________

infections and deaths started to pick up again around the

world. Where tuberculosis vanished, it came back; in S8. ________

many places where it had never been away, it grew better. S9. ________

The 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 S10. ________

3 million of those people died, nearly all of them in poor countries.

参考答案：

S1. in→for S5. the→/

S2. seventh→seven S6. imported→exported

S3. were→was 　 S7. are→were

S4. now→then 　 　S8. (tuberculosis)∧(vanished)→had

S9. better→worse S10. constantly→constant