一、网络资源的利用教材的第10页有一个活动3,是关于地球自转导致的时差问题,这个问题很难,大部分学生弄不清楚。问题是这样的:同一时刻,婕妈和畅畅互致问候时,为什么会有时间差异?我特意给学生安排了一节电脑课,让他们到网络上查阅,自己得出答案。我的问题是:(1)地球自转的概念;(2)地球自转的方向;(3)地球自转的 First, the use of network resources Textbook page 10 has an activity 3, is about the time difference caused by the Earth’s rotation, the problem is difficult, most students are not sure. The question is this: at the same time, Jie mother and smooth Changzhi greetings, why there is a time difference? I specifically arranged for the students a computer class, let them access to the Internet, their own answer. My questions are: (1) the concept of the Earth’s rotation; (2) the direction of the Earth’s rotation; (3) the Earth’s rotation