人类起源_初中英语作文_初中英语-查字典英语网

人类起源

接着，老师带领我们又查了人类进化的过程。前7000万—前800万年，人类是古猿，它是人类和类人猿的共同祖先，它们开始从不同方向进化。前420万—前100万年，古猿人进化成南方古猿，它是由猿分化出来的最原始的人科代表，具有猿和人的混合特征。这时，南方古猿能直立行走，接着进化成人，它们代表了人类演化历史中的早期猿人的阶段。慢慢的，进化成直立人，万年前的元谋人就是中国发现的时代最早的直立人，稍晚的重要发现有蓝田人，早期智人中最早发现的是尼安得特人，颅骨为扁头型容量为900—1300毫升，人类的进化过程非常复杂，科学家虽已经大概了解推测了，但更多的是让我们这一代的接班人去探索、发现。

Then, the teacher led us to check the process of human evolution. From 70 million to 8 million years ago, humans were ancient apes. They were the common ancestors of humans and apes, and they began to evolve in different directions. From 4.2 million to 1 million years ago, Australopithecus evolved into Australopithecus. It is the most primitive hominid representative differentiated from apes, with the mixed characteristics of apes and humans. At this time, Australopithecus can walk upright, and then evolve into adults. They represent the early stage of ape man in the history of human evolution. Slowly, it evolved into Homo erectus. Ten thousand years ago, Yuanmou Man was the earliest Homo erectus discovered in China. Later, Lantian man was an important discovery. Among early Homo sapiens, Neanderthal man was the first to be discovered. The skull was a flat head with a capacity of 900-1300 ml. the evolution of human beings was very complicated. Although scientists have probably understood and speculated about it, they let us know more about it Successors to explore and discover.