第一节 阅读下列短文，从每题所给的四个选项A、B、C和D中，选出最佳选项，并在答题卡上将该项涂黑。
A
American cities are similar to other cities around the world. In every country, cities reflect the values of the culture. American cities are changing, just as American society is changing.
After World War Ⅱ, the population of most large American cities decreased; however, the population in many Sun Belt cities increased. Los Angles and Houston are cities where population shifts (转移) to and from the city reflect the changing values of American society. In the late 1940s and early 1950s, city residents became wealthier. They had more children so they needed more space. They moved out of their apartments in the city to buy their own homes. They bought houses in the suburbs.
