2013
高考英语阅读理解指导及训练（3）答案-地理 a 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. in june, the northern hemisphere (半球) is tilted toward the sun, so the people in the northern hemisphere have longer and warmer days. the days are shorter and colder in the southern hemisphere in june, becaus e the earth is tilted away from the sun. the days start getting shorter in the northern hemisphere and longer in the southern hemisphere after
