听力原文

But not all pupils have to walk to school. These children are boarders.
然而并非所有孩子都要徒步上学。这些孩子是寄宿生。
As the day pupils near journey's end, the boarders are still making breakfast.
当孩子们快要到达学校时，住宿生还在做早饭。
In the schoolyard, someone seems to have switched the lights off.
校园内仿若被关掉了灯一般黑暗。
But this is no ordinary playground, and no ordinary school. It's housed inside a cave!
但这里其实并没有正规的操场，以及正规的学校。只不过是在洞穴中的房屋而已。
A natural vault of rock keeps out the rain so there's no need for a roof on the classroom.
天然拱顶阻隔了雨水，为教室省去了屋顶。

重点讲解

重点讲解：
1. seem to do sth.
好像；似乎；看来；
eg. The days seem to flash by.
光阴似箭。
eg. The majority of people seem to prefer TV to radio.
多数人喜欢电视胜过广播。
2. switch off
关掉，关上（电灯等）；
eg. Be sure to switch off the light when you leave the room.
你离开房间时一定要把灯关掉。
eg. The conference soon starts, to ask position to switch off the handset.
会议即将开始, 请各位关掉手机。
3. keep out
防止进入；阻止；
eg. Not even the thickest jacket was enough to keep out the cold.
就连最厚的夹克也不足以御寒。
eg. We have screened our porch to keep out mosquitoes.
我们的阳台已装上了纱窗以遮蔽蚊虫。