下图表示东半球经纬网，曲线为晨昏线。读图，回答问题
当曲线由晨线变为昏线时，正确的描述有（）
①甲地的昼长由最短逐渐达到最大
②乙地的昼夜长短变化幅度变大
③丙地由极昼现象变为极夜现象
④甲、乙、丙三地昼长大小变为甲>乙>丙
A．①②③
B．②③④
C．①②④
D．①③④
参考答案：D
解析：
根据上题分析，此时为冬至日，若图中曲线由晨线变为昏线，则变为夏至日。在此期间，北半球各地（包括甲地）昼长由最短变为最长；乙地的昼夜长短变化幅度先减小，到春分日时昼夜等长，之后在变大；南极圈上的丙地由极昼现象变化极夜现象；甲、乙、丙三地昼长大小变为甲>乙>丙。
考点：气球运动的地理意义
B Many young people want to be pop stars. Pop stars are rich. Many people think they are leading a happy and easy life. In fact, they have very hard lives. They spend much of their time on travel. Sometimes the travel is interesting, but in most time it is boring to pop stars. The following chart is a day’s life of a pop star.
A. singer B. dancer C. player D. pianist. 60. According to his plan, his plane should have taken off at _______. A. 6:30 B. 7:00 C. 7:30 D.:8:00 61. At the radio station, the pop star ________. A. showed fans how to become famous B. gave a performance on the air C. met fans and signed for them D. told people how he lived his life 62. From this passage we get to know that ________. A. not all people like pop stars B. pop stars have their own bands C. fans are troublesome for pop stars D. to be a pop star is not all fun | ||||||||||||||||||||||||||||||||
