The first sign of civilization in...dates back to around...

It means that...

It is generally considered/thought...

The mystery of...remains unknown/uncertain...

It is well preserved...

请根据以下提示，写一篇介绍"大克鼎"的英语短文。

1．大克鼎于1890年出土于陕西省扶风县，可追溯到西周后期，现收

藏于上海博物馆。

2．大克鼎由青铜铸造，高93.1厘米，重201.5千克。口沿(mouth rim)装饰有兽面纹(animal mask motif)，腹

部装饰有流畅的波曲纹，内壁刻有290个字。

3．在古代，鼎是社会地位和权力的象征，也用于烹饪和祭祀。大克鼎一直被认为是研究西周经济和文化的

重要物品。

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【审题谋篇】

1.确定体裁、时态、人称。

(1)体裁：描述考古发现属于说明文。写作时要确切把握好介绍的对象--大克鼎，抓住其主要特征进行描

述；同时语言要通俗简洁、实事求是。

(2)时态：以一般现在时为主。