第一部分：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，并在答题卡上将选项涂黑。
A
Washington Sightseeing Guide
White House-Public tours of the White House have been offered since Thomas Jefferson was president, but you can't just drop in. Visits to the White House are in high demand, and you must make your request through your member of Congress（国会）up to six months, and no fewer than 21 days, before your visit. Be sure to check the White House tour-info Web site to make sure about the personal identification you'll need. And before the day of your visit, call 202-456-7041 to confirm the tour schedule.
