练习材料：
[Day 1766 2019-07-28]
Lesson 26-3The past life of the earth
This is what happened to the famous Beresovka mammoth which was found
preserved and in good condition. In his mouth were the remains of fir trees -- the last
meal that he had before he fell into the crevasse and broke his back. The mammoth has
now been restored in the Palaeontological Museum in ST. Petersburg. Other animals
were trapped in tar pits, like the elephants, sabre-toothed cats, and numerous other
creatures that are found at Rancho la Brea. Which is now just a suburb of Los Angeles.
Apparently what happened was that water collected on these tar pits, and the bigger
animals like the elephants ventured out on to the apparently firm surface to drink, and
were promptly bogged in the tar. And then, when they were dead, the carnivores, like
the sabre-toothed cats and the giant wolves, came out to feed and suffered exactly the
same fate. There are also endless numbers of birds in the tar as well.
任务配置：L0+L1+L4
知识笔记：
Beresovka mammoth 长毛象
fir n. 枞; 冷杉;
Palaeontological 网络 考古学; 古生物;
Palaeontological Museum 古生物学博物馆
ST. Petersburg 即Saint Petersburg，/sənt 'pi:təzbɜ:g/，中文译为圣彼得堡，为俄罗斯城市。
tar n. 焦油; 焦油沥青; 柏油; (烟草点燃后产生的) 焦油; v. 用沥青涂抹; 用柏油铺;
pits n. 深洞; 深坑; 矿井; 麻子; 痘瘢; v. 使…表面有斑点; 在…上打洞;
tar pits 网络 沥青坑; 焦油坑;
sabre-toothed 网络 长着锐利的长犬牙的;
sabre-toothed cats 剑齿猫
Rancho la Brea 网络 兰乔拉布雷; 着名的拉布雷沥青坑;
suburb n. 郊区; 城外;
bogged v. （使） 陷于泥沼; （使） 动弹不得;
carnivores n. 食肉动物;
练习感悟：
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