2013年大学英语六级改错试题及答案（6）

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A great many cities are experiencing difficulties which
　　are nothing new in the history of cities, except in their scale.
　　Some cities have lost their original purpose and have not found
　　new one. And any large or rich city is going to attract poorS1. __________
　　immigrants, who flood in, filling with hopes of prosperityS2. __________
　　which are then often disappointing. There are backward towns
　　on the edge of Bombay or Brasilia, just as though there wereS3. __________
　　on the edge of seventeenth-century London or early nine-
　　teenth-century Paris. This is new is the scale. DescriptionsS4. __________
　　written by eighteenth-century travelers of the poor of Mexico
　　City, and the enormous contrasts that was to be found there,S5. __________
　　are very dissimilar to descriptions of Mexico City today—theS6. __________
　　poor can still be numbered in millions.
　　The whole monstrous growth rests on economic prosper-
　　ity, but behind it lies two myths: the myth of the city as aS7. __________
　　promised land, that attracts immigrants from rural povertyS8. __________
　　and brings it flooding into city centers, and the myth of theS9. __________
　　country as a Garden of Eden, which, a few generations late,S10. __________
　　sends them flooding out again to the suburbs.
　　S1. new à a new S2. filling à filled
　　S3. though à if S4. This à What
　　S5. was à were S6. dissimilar à similar
　　S7. lies à lie S8. that à which
　　S9. it à them S10. late à later