Part 1

　　The Amazing①Caves of Zhoukoudian

　　Zhoukoudian is a small village about 50 kilometres south­west of Beijing. In the 1920s②， archaeologists③ discovered some prehistoric④ human bones there which changed China's knowledge⑤ of its history⑥. They came from an unknown species⑦ of man and were the first evidence⑧ of primitive⑨ human life in China thousands of years ago. The remains⑩ were ... three teeth!

　　In 1929, a complete skull⑪ was also discovered. Eventually⑫， archaeologists found almost 200 items⑬， including⑭ six skulls and more than⑮ 150 teeth. These discoveries⑯ proved the existence⑰ of a human species who lived in the area⑱ between 700,000 and 200,000 years ago.

　　Four sites where Beijing Man and his relations⑲ lived⑳ were discovered on the northern face of\s\up1(21(21) Dragon Bone Hill (Longgushan). They lived in the limestone\s\up1(22(22) caves in the area. 　　①amazing adj.令人大为惊奇的

　　②in the 1920s＝in the 1920's

　　③archaeologist/ˌɑːki'ɒlədʒIst/ n．考古学家

　　④prehistoric/ˌpriːhI'stɒrIk/ adj.史前的；有历史记载以前的

　　　prehistory n．[U]史前时期

　　⑤knowledge n．[U]知晓，了解

　　⑥which引导定语从句，代指上文提到的事情。

　　⑦species n．物种，种　⑧evidence n．证据

　　⑨primitive/'prImətIv/ adj.原始的，原生的

　　⑩remains/rI'meInz/ n．遗迹；遗体

　　⑪skull/skʌl/ n．头颅，颅骨　⑫eventually adv.最后，终于

　　⑬item/'aItəm/ n．(一)件

　　⑭including prep.包括　including A＝A included

　　⑮more than超过，多于　⑯discovery n．发现

　　⑰existence/Iɡ'zIstns/ n．存在

　　　come into existence/being 产生，出现

　　⑱who引导定语从句，修饰"a human species"。

　　⑲relation/rI'leIʃn/ n．亲属；亲戚

　　⑳where引导定语从句，修饰"four sites"。

　　\s\up1(21(21)on the northern face of在......北面

　　\s\up1(22(22)limestone/'laImˌstəʊn/ n．石灰石