2. 财经
  3. The Earth，s axis(轴)is an imaginary line that runs through the middle of the Earth from the North Pole to the South Pole．The axis

The Earth，s axis(轴)is an imaginary line that runs through the middle of the Earth from the North Pole to the South Pole．The axis

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问题 The Earth，s axis(轴)is an imaginary line that runs through the middle of the Earth from the North Pole to the South Pole．The axis of the earth is tilted(倾斜)about 23．5 degrees．This tilt of the earth results in our seasons．1n June，the Northern Hemisphere(半球)is tilted toward the sun，so the people in the Northern Hemisphere have 10nger and warmer days．The days are shorter and colder in the Southern Hemisphere in June，because the Earth is tilted away from the sun．The days start getting shorter in the Northern Hemisphere and longer in the Southern Hemisphere after about June 21．This is the first day of summer in the Northern Hemisphere and the first day of winter in the southern hemisphere．Daytime lasts ex—actly as long as nighttime on the first day of autumn(about September 2 1)and the first day of spring(about March 21)．The first day of winter in the Northern Hemisphere，usually December 21,is the shortest dav of the year in the Northern Hemisphere and the longest day of the year in the Southern Hemisphere．  The days are 10nger in summer and shorter in winter the further you move from the equator．It’s generally dark on a suminer night in Florida by 8：30 P．m，hut in Vermont，there will still be some light at 10：00 p．m．The situation is reversed(相反的)in winter，where the sun will go down in Ver—mont by 3：45 P．m．，while there remains light in Florida until 5：15 P．m．  Northern A1aska is called the“Land of the Midnight Sun”，because it never gets dark during the summer months．That part of the Earth is facing the sun all day and all night．Antarctica never sees daylight during those months．The situation is reversed in December and January when northern Alaska never sees the sun while it continues to light the sky at night in Antarctica
According to the second paragraph，we can know that______．
选项 A、the Southern Hemisphere is tilted away from the sun in June
B、June 21 is the longest day of a year in the Southern Hemisphere
C、December 2 1 is the coldest day of a year in the Northern Hemisphere
D、there is only one day in a year when daytime lasts exactly as long as nighttime
答案A
解析 细节理解题。从第二段“The days are shorter and colder in the Southern Hemi—sphere in June，because the Earth is tilted away from the sun．”可知A选项正确。B、c、D选项均与第二段中的内容不符。
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