为什么会发生地震
Why Earthquakes Happen
理解地震发生的原因：地下岩石突然移动或断裂，释放能量，使地面晃动。
Understand that earthquakes happen when rocks underground suddenly move or break, releasing energy that shakes the ground
学习证据 / Evidence
- 解释地震是由地下岩石突然移动引起的
- 描述这种移动如何使震动通过周围地面传播
- 区分地下的原因和地表的地震影响
- Explain that earthquakes are caused by rocks underground suddenly moving
- Describe how this movement sends shaking through the surrounding ground
- Distinguish between the underground cause and the surface effects of an earthquake
评估问题 / Assessment
如果{{name}}感到轻微震动或看到地震的影像，能解释那是因为地下深处的岩石突然移动或裂开吗？
If {{name}} felt a small tremor or saw footage of an earthquake, could they explain that it happens because rocks deep underground suddenly shift or crack?