答案　A　[推理判断题。根据短文倒数第三段中的"Seuss was ahead of his time，and in this book the dawn of concern for environmental problems are shown. . . "以及倒数第二段中的"It's not only a warning of the heavy price of environmental destruction，written well before most people had thought to worry，but it's also a smart analysis of consumer societies"可知，Seuss博士是一个具有超前意识的人，他书中讨论的很多话题在多年以后引起了很大的关注。故选A。]

Just a little walk in the city of New York or Chicago，for example，would make any foreigner realize the presence of people of various races walking down the street：probably blacks，African Americans，Spanish，Asians，and so on. Or for another example，on school campuses in America，both the teachers and the students usually consist of people from a number of countries rather than only one.

Indeed，the variety of ethnicity (种族渊源) in America is often claimed to be the best mix in the world. That's why the famous term "melting pot" arises. Its basic idea presents the whole nation as one large pot. Anyone who enters the United States is automatically thrown into this "pot"．All the cultural aspects that one brings into are mixed together，or melted，to form a new culture.

In comparison with the "melting pot" theory，there is a "salad bowl" theory. This idea shows a completely separate view that newcomers bring different cultures，where each of these cultures is kept as an essential part to make up the whole. Every distinctive culture or belief is considered to be one of the tastes or ingredients (成分) that contribute to forming the whole. Therefore，its original shape and characteristics are maintained.

The ideas，of the "melting pot" and the "salad bowl"in America both show an ideal to many people and are often admired. Having a close look at the reality of the country，such as the existing ethnic segregation (分离)，the fact of the white population fleeing from the minority，and the trend of the minority group forming their own group，one can see that the "melting pot" theory is merely a myth. Despite its long fame，it is more suitable to label America as a "salad bowl"．

5．What would be the BEST title for the passage?

A．America："Melting Pot" or "Salad Bowl"？