【正文】
ny large or rich city is going to attract poorS1. _____ immigrants, who flood in, filling with hopes of prosperity S2. _____ which are then often disappointing. There are backward towns on the edge of Bombay or Brasilia, just as though there were S3. _____ on the edge of seventeenthcentury London or early nineteenthcentury Paris. This is new is the scale. Descriptions S4. _____ written by eighteenthcentury 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 the S6. _____ poor can still be numbered in millions. The whole monstrous growth rests on economic prosperity, but behind it lies two myths: the myth of the city