单选题 Strange things happen to time when you travel, because the earth is divided into twenty-four time zones, one hour apart. You can have days with more or fewer than twenty-four hours, and weeks with more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Traveling west, you set clock back; traveling east, you set it ahead. Each day of your trip has either twenty-five or twenty-three hours.
If you travel by ship across the Pacific, you cross the International Date Line. By agreement, this is the point where a new day begins. When you cross the line, you change your calendar one full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow.
单选题 Strange things happen to time when you travel because ______.
【正确答案】 B
【答案解析】[解析] 事实细节题。根据第一段第一句话可知，地球上分为24个时区，每小时为一个时区，这就是人们跨越时区时出现的时差现象。
单选题 The time difference between two neighboring zones is ______.
【正确答案】 C
【答案解析】[解析] 事实细节题。同样根据第一段第一句，地球上分为24个时区，每小时为一个时区。故选C。
单选题 According to paragraph 2, it seems true that the Atlantic Ocean ______.
【正确答案】 B
【答案解析】[解析] 推理判断题。第二段第一句“If you make a five-day trip across the Atlantic Ocean, your ship enters a different time zone every day.”表明，若用五天横穿大西洋，每天就会进入一个时区。由此推知，大西洋分为五个时区。
单选题 If you cross the Atlantic ocean going east, you set your clock ______.
【正确答案】 A
【答案解析】[解析] 事实细节题。根据第二段第三句可知，如果在大西洋向西行驶一个时区，你的钟表要向后拨一个小时，向东行驶一个时区，钟表要向前拨一个小时。
单选题 The International Date Line is the name for ______.
【正确答案】 C
【答案解析】[解析] 事实细节题。第三段涉及国际日期变更线，由第三段第二句话“By agreement, this is the point where a new day begins.”(这条线是地球上新的一天的开始)可知，C为正确答案。