There are answers to all fill in the blank questions in Grade 7 History and Society

The forehead is low and flat, the brow bones are thick, the cheekbones are prominent, the nasal bones are flattened, the mouth is protruding, and it is able to make stone tools, and it will keep the fire for a long time. Based on these characteristics, please judge that he belongs to Beijing.

The skull of Peking people has a low forehead and a flat forehead, thick eyebrow bones, prominent cheekbones, flat nasal bones, a protruding mouth, and a smaller brain volume than modern people.

The average height of a Peking man is 157 cm, and the upper limbs are similar to those of modern humans, with the lower limbs slightly longer than the upper limbs, and they are able to walk upright.

In 1921, a site with a 40-meter-thick accumulation layer was discovered on the Dragon Bone Mountain in Zhoukoudian, southwest of Beijing, and later anthropologists named the ancient humans who lived here "Homo erectus" or "Peking Man" based on the three fossilized teeth found in the site.

In 1929, Pei Wen, a young Chinese scholar, discovered the first fossilized skull of Peking Man, and in the same year, the remains of fire were discovered. Since then, a large number of fossils and stone tools have been found here, which provides an important basis for restoring the characteristics and living conditions of Beijingers.

It has been determined that Peking people lived about 700,000-200,000 years ago. It also retains some of the characteristics of an ape, but has a clear division of hands and feet, can make and use tools, and can use natural fire. Dense forests, overgrown with weeds, and infested with fierce beasts, the Pekingese beat stones into rough stone tools and cut branches into wooden sticks, waging a difficult struggle against nature with their most primitive tools.

In such a hostile environment, it is impossible to live on the strength of a single person. Therefore, they often have dozens of people together, work together, share the fruits of labor together, and live in groups. This led to the formation of early primitive societies.

The best in the world

The Zhoukoudian Peking Man site is one of the most abundant and complete Homo erectus sites in the world so far. Through the study of Peking Man, we can find the law of evolution and development from early ape man to modern human, which provides reliable evidence for the study of human origins.

The Peking Man site is the site with the richest archaeological bones, fossils and fire relics unearthed in the world. Peking Man is the most abundant and complete Homo erectus in the world. Five relatively complete Peking Man skull fossils and some fossils from other parts have been discovered, as well as a large number of stone tools and stone chips, totaling more than 100,000 pieces.

About 700,000 to 200,000 years ago, it was found in Zhoukoudian, Beijing, and retained some characteristics of apes, using stone tools, using natural fire, and living in groups. Some scholars believe that bone horns were already made at that time. In addition to hunting, edible wild fruits, young leaves, roots, and small animals such as insects, birds, frogs, and snakes are also daily food**.

The caves where Pekingese lived were thick layers of ashes, up to 6 meters thick at the thickest point, and the ash heaps contained burned animal bones, tree seeds, stones, and charcoal blocks. It shows that Pekingese people already know how to use fire and preserve fire. The study found that Beijingers usually form groups of dozens of people.

Life expectancy is short, and most people die before the age of 14.

According to what we have learned, the skull of Peking people has low forehead fluid, thick eyebrow bones, protruding cheekbones, flat nasal bones, protruding mouths, and a smaller brain capacity than modern people. They are both 157 centimeters tall and have upper limbs similar to those of modern humans, with lower limbs slightly longer than upper limbs and the ability to walk upright.

Therefore, the answer to this question is from Beijing.

These traits describe a type of ancient ancestor of humans, which can be hominids or ancient humans, such as Homo sapiens or Homo erectus.

Based on the characteristics described, he may have belonged to a Stone Age human.

Pekingese who belong to the Stone Age.

Do you do your homework yourself?

1. In modern civilized society, honesty should be a citizen's ( ) There is a saying in our country that (" It is said that honesty is as precious as gold.

2. ( The day of the month ( ) is "World Frugality Day". There is a thrifty saying that "Saving is like ( ) waste is like ( ) dripping into a river, (

3. Know how to appreciate others, not only show yourself ( ) more importantly, you can discover and learn from others ( ) to make yourself ( ).

4. Helping others is not only out of kindness, but also out of a kind of ( ) not under the call of teachers or schools, nor is it you ( ) but out of ( ).

5. What is "one poor and two white"?"One poor" means ( ) "two white" means ( ) In order to change the backward appearance of old China, "became the belief of the entire Chinese people at that time.

With this belief, the Chinese people have overcome ( ) ushered in ( ) a vigorous new China, showing a prosperous scene everywhere.

6. ( In the year the US aggressors brazenly launched ( ) and burned the war until the ( ) Chinese People's Liberation Army on the border between China and Korea formed a volunteer army to resist US aggression and aid Korea.

7. ( Year of promulgation of the Constitution of the People's Republic of China; (In the year, the People's Bank of China began issuing new RMB currency; (The first batch of Jiefang trucks produced by the Chinese themselves left the factory.)

8. Reform and opening up is from ( ) year, ( This place started, the chief designer of reform and opening up is ( ) There is a song called "Singing is him.

In addition, this page also lists the review knowledge points, and you can hollow it out to become a fill-in-the-blank question with answers.

What year was the 77 Incident in? Answer: On the evening of July 7, 1937.

1. About 3500 B.C. 6th century B.C. Persia in Western Asia About 2400 years.

2. The Euphrates and Tigris rivers in western Asia.

That's the answer, I hope it helps you!

Totally agree with the shallow and depressed answer.

In 3500 BC, dozens of small states appeared on both sides of the Nile, marking the emergence of this Egyptian civilization, and by the 6th century BC, Egypt was destroyed by Persia in Western Asia. The ancient Egyptian civilization existed for about 2500 years.

2. The "Fertile Crescent" is located in the western part of Asia (present-day Iraq), and its eastern part is connected by the Euphrates and Tigris rivers, and the area through which the two rivers flow is called the "Two Rivers".

It's useless to take the high school entrance examination or not, you don't have to know.

I know that you can't memorize it, you can't use it when you memorize it, and you can wait enough to use it, but it's better not to know!

From about 3500 BC, some small states appeared in Egypt, around 3000 BC, Egypt began to appear as a preliminary unified state, and thereafter, until Alexander the Great conquered Egypt in 332 BC, the ancient Egyptians created a glorious history of more than 3,000 years.

In western Asia, there is a narrow arc like a crescent moon, which some people call the "Fertile Crescent". To the east of the Fertile Crescent, the Euphrates and Tigris rivers run in parallel, and the area through which the two rivers flow is called the Valley of the Two Rivers or the "Mesopotamian Plain", also known as the "Fertile Crescent". , which is the birthplace of the civilization of the Two Rivers.