一. 阅读理解（每小题2分，满分30分）
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，并将答案涂在答题卡上的相应位置。
(A)
The United States has many different kinds of climates. On the northwest coast，the temperature changes very little between summer and winter，but the north central states have a very different kind of climate. In those states，people wear light clothes in summer，and they need heavy woolen clothes in winter.
