BBC 英语学习 新闻词汇 发现史前遗迹

It's one of the world's most famous sites,

yet, so much about Stonehenge remains a mystery.

But are we finally getting closer to understanding?

It's this site, 2 mi away that archaeologists have been examining, an area known as Durington Walls.

Using ground penetrating radar,

they've been able to look deep into the earth and discovered what could be one of the uk's largest prehistoric sites, a ring of around 20 shafts dug more than 4000 years ago, around the time Stonehenge was built nearby.

These are 20 meter diameter, at least five meter deep, sometimes even deeper, we think, a shafts or pits that have been dug into the chalk, and are oriented in a kind of an arc, both to the south and the north of during the worlds.

The orientation of them, the space in of them, would suggest that they have some organized, sort of ritualistic reason for being there.

The task for historians now is to work out how the newly discovered outer ring of pits is connected to Stonehenge itself.

The National Trust has described the find as astonishing.

What further secret will it now reveal?

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