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Time Zones（时区）

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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
Time Zones（时区）


小题1:B

小题2:A

小题3:D

小题4:C


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