Question

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 becomes yesterday; traveling west, it is tomorrow.
【小题1】Strange things happen to time when you travel because______.

A．no day really has 24 hours	B．the earth is divided into time zones
C．time zones are not all the same size	D．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 zones	B．is divided into 24 time zones
C．is in one time zone	D．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 zone	B．one hour ahead for the whole trip
C．back one full day for each time zone	D．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 zone	B．the point where a new day ends
C．the point where a new day begins	D．any time zone in the Pacific Ocean

Answer 1

【小题1】B
【小题2】A
【小题3】D
【小题4】C

解析试题分析：
【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。
考点：这是一篇知识性小品文。
点评：这是一篇涉及地理方面的知识性小品文。地球上共划分了二十四个时区，两个相邻的时区之间时间正好相差一个小时。因此，我们环球旅行时，就会遇到时差问题。国际日期变更线是新的一天开始的地方。穿越这条线向东去，今天就变成了昨天，向西去，今天就成了明天。做这种题需用地理方面的知识来帮助考生理解。