第Ⅰ卷（共100分）
第一部分听力（共两节，满分30分）
第二部分 阅读理解（共两节，满分40分）
第一节（共15小题，每小题2分，满分30分）
阅读下面短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
A
A Healthy Habits Survey（调查）shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.
1. How many times did you brush your teeth yesterday?
· Finding：A full 33% of seniors brush their teeth only once a day.
· Step：Remove the 300 types of bacteria（细菌） in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.
