Tracing the Origins of Humanity Junior High School Essay No less than 650 words

On this beautiful earth, tens of millions of lives are pregnant. Human beings can be regarded as one of the prominent species. Human intelligence is unmatched by other animals.

Over the course of thousands of years, they have changed themselves and the world at the same time. However, nature has played a joke on man - what is the origin of human beings? This question may seem simple, but it is incomprehensible and incomprehensible.

It is a ...... that humanity has not yet untied its shackles

For thousands of years, people have been searching for their roots. However, in ancient times, due to the ignorance of science, human beings could only rely on fantasy in their understanding of themselves.

In ancient China, among the people, Pangu opened the world and the story of Nuwa creating people has been circulating, and people think that they are just gods who are bored and use mud to pinch out dolls. They worship the gods and believe that this is where man originates. This idea has been buried in the fertile soil of China for thousands of years ......In the ancient West, people believed in God, and God was the supreme and true God.

It is believed that man has been active on the earth since God created Adam and Eve. To this day, people still have great reverence for God as the creator of mankind. This idea also took root in the West and is still flourishing today.

These are the so-called "creationism", which is a definition given to oneself by human beings in their ignorant childhood. They add a veil of mystery to the problem of human origins, and make the dream of human beings to find their roots even more urgent.

Time flies, and gradually, as human beings master scientific knowledge, the world suddenly becomes a world dominated by human beings. But humanity's quest has not stopped, and it will not stop. It wasn't until 1860 that Darwin's bold theories shattered people's ignorance.

It has entered a new phase.

With the unearthing of more and more human fossils, human beings' understanding of themselves has gradually become clearer, and the fog on their heads has gradually dissipated, but a bigger question mark has been drawn. The "Australopithecus theory" is one of the earliest views established by human beings, that is, it is believed that human beings evolved step by step from apes through Australopithecus, Australopithecus, Homo erectus, and finally Homo sapiens. Some fossils add credibility to this theory.

However, as people delved deeper into the human body, more mysteries loomed over people's heads, and the ensuing "sea ape theory" and "alien theory" made people's research on themselves more diverse. People are constantly coming up with new conjectures through their own research. To this day, there are still different opinions and no conclusions.

However, people still regard the "Australopithecus theory" as the fundamental theory of human origin, and continue to explore it.

Although there is no definitive conclusion now, people's understanding of themselves will gradually become reasonable with the continuous development of the times. Is human beings the perfect masterpiece of the heavenly gods, or is it the product of nature's ingenuity? The mystery of human origins will eventually be solved.

The key to unlock this shackle awaits the arrival of humanity not far away ......

First of all, it is confirmed that humans have a symbolic language and animals have a signal language. We think in our mother tongue, the words used as thinking, and form meaning directly in our brains, and our mother tongue language is symbolic language; We don't need to think in a foreign language, the foreign language we learn does not directly form meaning in the brain, we need to translate it into our native language words first, so that we can "understand" the meaning of foreign words, foreign languages are our signal language. Animals think directly with objects, and their language plays the role of prompting or warning about thinking with objects, and the words are also rich, but they are signal languages.

Australopithecus was forced out of the woods, and the apes that descended from the trees held the sense of security in the trees (sticks and then stones) in their hands and had to walk upright (defenseless and easy to become food for predators). Australopithecus, holding a stick or a stone in his hand, quickly relied on the ** in his hand, not only no longer afraid of predators, but also became an unprecedented master of hunting. Coupled with the fact that there were large herbivores like mammoths, food suddenly became very readily available.

Australopithecus, which traditionally consumed tree fruits and grass leaves (low-energy food), was suddenly faced with a large amount of meat (high-energy food), and overenergy, a large amount of leisure, long-term feeding, and division of labor (sentry, housekeeping, male and female, etc.) naturally formed. Under the conditions of abundant energy, leisure and primitive division of labor (communication in non-current scenes becomes necessary), language words are no longer simply signals that trigger object thinking, but they gradually form meanings independently in rich communication, signal language evolves into symbolic language, and language thinking gradually becomes an independent thinking system. Humanity was born.

In the process of the formation of symbolic language thinking, the thinking of objects and images is greatly activated, the total amount of thinking information increases significantly, and the brain capacity begins to expand. However, when linguistic thinking matures, object thinking is inhibited by linguistic thinking, and the amount of information units in the language itself is very small, and the total amount of thinking is even smaller. The human brain no longer expands.

Linguistic thinking is an essential characteristic of human beings. The basic function of linguistic thinking is that future generations can rely on language to accumulate the wisdom of their predecessors. In other words, human beings can, and in fact, rely on accumulating the wisdom of their predecessors to reach today's dominance.

The offspring of animals can only rely on their own senses to explore the world, and the wisdom of their predecessors ends with the disappearance of their predecessors' lifeforms. So, despite the fact that animals have a physiological structure that is no worse than human intelligence. Animal minds are always jumping from the water with a new generation of zero elevations and cannot go higher.

The origin of human beings is a non-physiological evolutionary process.

Darwin's theory of evolution, down to animals (plants). The theory of evolution, which is physiologically evolutionary, cannot explain the origin of man.