Time Zones（时区）
Strange things happen to time when you travel. Because the earth is divided into twenty-four zones one hour apart（相差）.You can have days with more or fewer than twenty-four hours, and weeks more or fewer than seven days.
If you make a five-day trip across the Atlantic Ocean(大西洋)，your ship enters a different time zone every day. As you enter each zone, the time changes one hour. Travelling west ,you set your 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（太平洋）, 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 time day, backward or forward. Travelling east, today bees yesterday; traveling west, it is tomorrow.
【小题1】Strange things happen to time when you travel because .A．no day really has 24 hoursB．the earth is divided into time zonesC．time zones are not all the same sizeD．no one knows where time zones are【小题2】From this passage it seems true that the Atlantic Ocean .A．is divided into five time zonesB．is divided into 24 time zonesC．is in one time zoneD．cannot be crossed in five days【小题3】If you cross the ocean going west, you set your clock .A．ahead by 25 hours in a new time zoneB．one hour ahead for the whole tripC．back one full day for each time zoneD．one hour back in each new time zone【小题4】The international date line is the name for .A．the beginning of any new time zoneB．the point where a new day endsC．the point where a new day beginsD．any time zone in the Pacific OceanB
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(答案→)B
解析：
【小题1】这是细节理解题。根据Because the earth is divided into twenty-four zones one hour apart（相差）.一句话可知，导致这种奇怪现象的原因就是因为时区的划分。故选B。
【小题2】这是细节理解题。根据If you make a five-day trip across the Atlantic Ocean(大西洋)，your ship enters a different time zone every day. As you enter each zone, the time changes one hour.段落末尾又说“每一天你的旅行不是二十四小时，就是二十五小时”。由此可以判断大西洋跨五个时区。故选A。
【小题3】这是细节理解题。根据Travelling west ,you set your clock back;故选 D。
【小题4】这是细节理解题。根据this is the point where a new day begins故选 C。