Strange thing happens 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 t

Strange thing happens 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 t
Strange thing happens 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 the hour. Traveling 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 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 the full day, backward or forward. Traveling east, today becomes yesterday; traveling west, it is tomorrow!
26. The best title for this selection is .
A. A Trip Across the Atlantic
B. How Time Changes Around the World
C. Crossing the International Date Line
D. How Time Zones Were Set Up
27. The difference in time between zones is .
A. seven days B. twenty-four hours
C. one hour D. more than seven days
28. From this selection it seems true that the Atlantic Ocean .
A. is in one tie zone
B. is divided into twenty-four time zones
C. is divided into five time zones
D. cannot be crossed in five days
29. The international date line is the name for .
A. the beginning of any new time zone
B. the point where time changes by one hour
C. the point where a new day begins
D. any time zone in the Pacific Ocean
30. If you cross the ocean going east, you set your clock .
A. ahead one hour in each new time zone
B. ahead one time for the whole trip
C. back one full day for each one full day
D. ahead by twenty-three hours

Strange thing happens 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 t
关于地理上的 国际日期变更线（the International Date Line) 小小的解释片段.
选项：26-30：B C D C A
我不确定是否正确,尤其30.只是我个人的答案.
短文的翻译：当你旅行的时候会发生奇怪的事情.地球被划分为24个时区,时区与时区间相差一小时.因为这个,你的一天可能变成25个小时或者23个小时,你的一周可能就多于或者少于7天.
如果你花五天时间穿过大西洋,你的船每天进入一个不同的时区.你进入每个时区,时间也相应的有小时的变化.向西行,你得将时钟往后拨,向东行,你应将时钟往前调整.你旅行的每一天不是25小时就是23小时.
如果你乘游轮穿过太平洋,你会越过国际日起变更线.国际协议规定,这是新的一天开始的地方.当你跨过这条线,你的日历会产生一天时间的更改,倒退一天或者前进一天.向东行,今天变成了昨天,向西行,今天变成了明天.
理解了短文的意思,你再考虑一下,自己做一下题目.仍然希望我做的是最佳答案.