[简答题]The saddest aspect of mass tourism has been brought recently to the attention of the public: it seems that the great number of visitors is destroying the treasures that they enjoy most. Under millions of feet, ancient stones wear out, ancient floors break down. Parts of the palace of Versailles may have to be closed to the public in order to preserve them, and some European caves, famous for their thirty-thousand-year-old paintings, have already been closed because the paintings were damaged by human respiration. There may come a time when only specialists in art, history, or archaeology will be allowed near the treasures of the past. Perhaps we’d better hurry to see them; perhaps we’d better take a tour soon.

[单项选择]Mass production has made ______ the goods and services we want at a lower price.
A. possible for us to get
B. it is possible for us to get
C. it possible for us to get
D. possible it is for us to get

[单项选择]At no time in history has there been such a mass movement of people from countryside to city as is happening now. By the year 2030, it’ s estimated that more than two thirds of the word’ s population will be living in cities, twice as many as today. This means that the problems faced by cities to day-overcrowding, poor housing, unemployment, poverty, and lack of food water--will be twice as had in the next century, unless we find solutions soon.
Another serious issue is how to provide good transport to their citizens. Many world’ s major cities are already struggling with out-of-date transport infrastructures. How can they deal with the additional demands in the 21^stcentury
London is a good example. It was the world’ s first big city--the first with a population of a mil lion people. Its enlargement was made possible by the invention of the steam engine, which powered the world’s first underground railway. But its transport systems are now hopelessly out-of-date, a
A. overpopulation causes the problems in cities
B. two-thirds of the world’ s population are living in cities today
C. it isn’ t difficult to solve the problems faced by cities today
D. with fewer people, we would be free from any problems