人口结构英文

人口是一个内容复杂、综合多种社会关系的社会实体，具有性别和年龄及自然构成，多种社会构成和社会关系、经济构成和经济关系。人口的出生、死亡、婚配，处于家庭关系、民族关系、经济关系、政治关系及社会关系之中，一切社会活动、社会关系、社会现象和社会问题都同人口发展过程相关。

人口（英文：Population）是一个内容复杂、综合多种社会关系的社会实体，具有性别和年龄及自然构成，多种社会构成和社会关系、经济构成和经济关系。是一定数量个人的综合，强调规模。

人口的出生、死亡、婚配，处于家庭关系、经济关系、政治关系及社会关系之中，一切社会活动、社会关系、社会现象和社会问题都同人口发展过程相关。

相关说明

人口结构各因素中，年龄和性别是最基本最核心最重要的因素，人口结构中影响最大的就是年龄结构和性别结构。理想的年龄结构应符合“人口低增长和长寿命”二大特征。

人口低增长是指年出生人口的低增长（人口出生率在14.0‰～16.0‰），年出生人口高增长（人口出生率高于16.0‰）和负增长（人口出生率低于14.0‰）均会使人口结构恶化！理想的性别结构应符合“同年龄的男女性别人数相等或相近”。

由于人口出生率较难控制（特别是进入少子化社会以后更难于实现），人口年龄结构的优化，主要通过抑制或鼓励育龄妇女的生育胎次来实现。要实现代际均衡（零增长），在发达国家，其总和生育率应达2.13胎；在发展中国家，其总和生育率应达2.3胎。

要实现代际低增长，在发达国家，其总和生育率应达2.2胎（中产二胎，金领三胎，少数多胎或少胎）；在发展中国家，其总和生育率应达2.3胎～2.5胎（普通二胎，中产三胎，少数多胎或少胎）。

以上内容参考：百度百科-人口 （一个地理区域的人的数目）

表达人口的时候用has a population of...的结构。2491口人用英语表示是：two thousand four hundred and ninety one people。举个例子，如果说"这个村子有2491口人"，我们可以说成：The villiage has a population of two thousand four hundred and ninety one people.

人口是一个内容复杂、综合多种社会关系的社会实体，具有性别和年龄及自然构成，多种社会构成和社会关系、经济构成和经济关系。是一定数量个人的综合，强调规模。人口的出生、死亡、婚配，处于家庭关系、民族关系、经济关系、政治关系及社会关系之中，一切社会活动、社会关系、社会现象和社会问题都同人口发展过程相关。

1 population structure change of challengesThe main contradiction of population, already from controlling the population to improve population structure of the new stage. The new population problem, namely, with the rapid decline rate, population structure appears unusual transformation, broke the human society itself, age, gender, the ecological balance of generation, the rise of China is one of the most serious challenge. Chinese KouZhan world population growing proportion of this trend, must pay attention. Labor advantage, aging wave quietly and to light the gender imbalance, "red". Decision should take scientific prediction based on the new population, the disadvantages.When the population structure change has become a fact, we can no longer rely on our country of cheap Labour as a springboard to economic growth, so our generation and later adolescents should enhance their labor technical level and comprehensive quality, only by the hands of the past can be family situation will change, future requirement worker master necessary advanced technology. Our company also should keep pace with The Times, timely from labor-intensive to technology research and development, enhance the comprehensive competitiveness of change. This requests us to learn scientific and cultural knowledge, grasps the necessary computer skills and have certain foreign language ability.We will build a lifelong learning actively advocated the society is not only the young, to make contribution to society, even now known as the elderly population can also play in a certain extent heat.We should actively promotes and equality between men and women, let the society have better sustainability. According to statistic, in recent years of babies born in the male to female ratio is 100:120, which will lead to the adults have a certain proportion of "bachelor", we will give the social pressure.2. Environmental protection and sustainable developmentEnvironmental issues will be neglected after a major problem, should cause humanity concern. For our youth, first should strengthen their environmental protection concept, abandon about environmental issues of premature old ideas, only is our own ideas advanced enough to know that should aim at, especially in the vast rural areas, and between the extensive publicity should be natural struggle to respect the natural harmony with nature, Should enjoy blindly to natural pursuit for environment protection to cherish resources, Should change their interests for only care about humans upon earth, Should consider only immediate interests into considering sustainable development.Secondly, we should pay attention to strengthening the legal system environment, environmental protection and resource becomes work. Promote our national economic construction and environmental protection better coordination.Moreover, we should actively into the rural students, for farmers to advanced knowledge and management methods and the construction of ecological agriculture, promote the sustainable development of the rural areas, and youth of scientific and technical workers should increase in clean energy and material recycle energy and resources, strengthen the sustainable production and utilization, improve the antifouling performance today, pollution prevention and environment to repair.3 health and mental qualityIn today's society, we teenagers are fashion, to a certain extent, our behaviour reflects a social atmosphere of good and bad. So we should consider whether accord with everywhere in social ethics.The future of society is more challenges and opportunities of society, we should pay attention to its own comprehensive development and personal accomplishment, necessary skills in both groups, the individual also should have a win-win situation.4 multicultural and technology integrationAs the communication between countries, the competition between countries not only in the economic and military field, in the cultural and entertainment is more intense competition, we hold the motherland is the next generation, and at all levels should be strict with themselves, and actively advocate the traditional culture of China in the world of fashion in the multicultural leads a kind of trend, promoting China's science and technology strength, the enhancement of the national pride and self-confidence to new heights of history. On the premise of keeping independent participation in a wide range of international cooperation, carries on the comprehensive communication.In the areas of science and technology from other countries, should pay attention to the advanced experience from top to bottom and scientific research projects operation mechanism, which maximizes the wisdom of everyone, In the cultural field, we cannot allow westernization blindly negative thoughts of traditional, also cannot indulge in wilful persecution of inevitability, and the most desirable is belittling to several thousand years of tradition into their behavior, timely, expand. "the influence of Chinese civilization, and make the world in the multicultural flower.==============================================20分太少了哦 这种的起码50-100

1. The challenges of demographic change The principal contradiction of China's population development, population shift from control to improve the population structure of a new stage. The new population problem, that was experiencing with the decline in fertility, population structure is highly unusual transformation, breaking the age of human society itself, intergenerational, gender, ecological balance, the rise of China will be the most serious challenges. China's population accounts for the proportion of the world's population is declining, we must pay attention to this trend. Advantage of weaker labor quietly, but to the surging tide of aging, gender imbalance in turn "red." The decision-making should be based on scientific prediction based on the implementation of the new population strategy. When the changes in population structure has become a reality, we can no longer rely on cheap labor in our country as a springboard for economic growth, so we of this generation and beyond, young people should effectively improve their skill level and overall quality of labor, past alone hands can support a family situation will change in future, require workers to acquire the necessary advanced technologies. Our business should be with the times, to make a timely manner from the labor-intensive to technology-based changes in research and development and enhance overall competitiveness. This requires us to strive to learn scientific and cultural knowledge, to acquire the necessary computer skills and possess the necessary foreign language ability. We must actively promote the building of a lifelong learning society, when the time is not only the young adults to contribute to society, and even now known as the old age groups may to a certain extent, play the heat. We should actively promote gender equality and the sustainability of the community better. According to statistics, in recent years, infants born male to female ratio 120:100, which will lead to these people beyond a certain percentage of the adult's "bachelor" to give the community time pressure. 2. Environmental Protection and Sustainable Development Environmental issues will be a future major issues can not be ignored, should arouse the concern of all humanity. For our young people should first strengthen their own concepts, to talk about environmental issues is too early to abandon the old concepts, followed by only a concept advanced by our own is not enough, we should focus on knowledge is not enough to put in place, especially in the vast rural areas regional populations, should be widely publicized confrontation with nature, the struggle for the respect for nature into harmony with nature; should be obtained blindly to the pursuit of the enjoyment of natural resources, care for the environment into a treasure; should be serving its own interests into the Earth's concern for human care; should only consider the immediate into consideration sustainable development. Secondly, we should pay attention to strengthening the environmental legal system, so that protection of the environment and resources has become a legal basis. To promote our country's economic construction and environmental protection to better coordinate. Furthermore, we have students to actively enter the vast rural areas for farmers and bring advanced knowledge and management practices and ecological agriculture, construction, and promote sustainable development in rural areas, as well as young scientists should intensify research and development of clean energy and recyclable materials, energy and resources to enhance the sustainable production and use, today's anti-pollution pollution control methods to improve and effectively carry out pollution control and environmental restoration. 3. Health and mental quality In today's society, our youth is the dominant fashion trends, to a certain extent, our behavior reflects the culture of a society good or bad. Therefore, we consider every aspect of acting in line with the code of ethics. Society of the future will be more challenges and opportunities of the community, we should pay attention to their full development, if necessary, equal emphasis on individual skills and personal self-cultivation, in the groups also should be win-win spirit. 4. Multi-cultural and technological convergence As the exchange between countries is getting closer, the competition among countries not only in the economic and military sphere, in cultural, entertainment and even more intense rivalry, we prop up the motherland and the next generation at all levels should strictly demands on themselves, and actively promote China's traditional culture in the world's leading multi-cultural in a kind of fashion trend, promoting China's scientific and technological strength, so that people's self-esteem and self-confidence to a new historic high. While maintaining the premise of independent personality, a wide range of participation in international cooperation and all-round exchanges. In science and technology, we should pay attention to learn the advanced experience of other countries operating research projects with top-down mechanisms to the maximum extent possible to play everyone's wisdom; in the cultural field, we can not allow the wholesale Westernization denial about the havoc caused by traditional thinking , we can not conceited, arrogant, the most desirable is to make the fine tradition for thousands of years into their own behavior, the time "take-ism" and increase the influence of Chinese civilization, making it the world's diverse culture, a wonderful work .

1. The challenges of demographic change The principal contradiction of China's population development, population shift from control to improve the population structure of a new stage. The new population problem that, with rapid-decline in fertility, population structure is highly unusual transformation, breaking the age of human society itself, intergenerational, gender, ecological balance, the rise of China will be the most serious challenges. China's population accounts for the proportion of the world's population is declining, we must pay attention to this trend. Advantage of weaker labor quietly, but to the surging tide of aging, gender imbalance in turn "red." The decision-making should be based on scientific prediction based on the implementation of the new population strategy. When the changes in population structure has become a reality, we can no longer rely on cheap labor in our country as a springboard for economic growth, so we of this generation and beyond, young people should effectively improve their skill level and overall quality of labor, past alone hands can support a family situation will change in future, require workers to acquire the necessary advanced technologies. Our business should be with the times, to make a timely manner from the labor-intensive to technology-based changes in research and development and enhance overall competitiveness. This requires us to strive to learn scientific and cultural knowledge, to acquire the necessary computer skills and possess the necessary foreign language ability. We must actively promote the building of a lifelong learning society, when the time is not only the young adults to contribute to society, and even now known as the old age groups may to a certain extent, play the heat. We should actively promote gender equality and the sustainability of the community better. According to statistics, in recent years, infants born male to female ratio 120:100, which will lead to these people beyond a certain percentage of the adult's "bachelor" to give the community time pressure. 2. Environmental Protection and Sustainable Development Environmental issues will be a future major issues can not be ignored, should arouse the concern of all humanity. For our young people should first strengthen their own concepts, to talk about environmental issues is too early to abandon the old concepts, followed by only a concept advanced by our own is not enough, we should focus on knowledge is not enough to put in place, especially in the vast rural areas regional populations, should be widely publicized confrontation with nature, the struggle for the respect for nature into harmony with nature; should be obtained blindly to the pursuit of the enjoyment of natural resources, care for the environment into a treasure; should be serving its own interests into the Earth's concern for human care; should only consider the immediate into consideration sustainable development. Secondly, we should pay attention to strengthening the environmental legal system, so that protection of the environment and resources has become a legal basis. To promote our country's economic construction and environmental protection and better reconciled. Furthermore, we have students to actively enter the vast rural areas for farmers and bring advanced knowledge and management practices and ecological agriculture, construction, and promote sustainable development in rural areas, as well as young scientists should intensify research and development of clean energy and recyclable materials, energy and resources to enhance the sustainable production and use, today's anti-pollution pollution control methods to improve and effectively carry out pollution control and environmental restoration. 3. Health and mental quality In today's society, our youth is the dominant fashion trends, to a certain extent, our behavior reflects the culture of a society good or bad. Therefore, we consider every aspect of acting in line with the code of ethics. Society of the future will be more challenges and opportunities of the community, we should pay attention to their own comprehensive development of the necessary skills equal emphasis on individuality and personal self-cultivation, in the groups also should have the spirit of win-win situation. 4. Multi-cultural and technological convergence As the exchange between countries is getting closer, the competition among countries not only in the economic and military sphere, in cultural, entertainment and even more intense rivalry, we prop up the motherland and the next generation at all levels should strictly demands on themselves, and actively promote China's traditional culture in the world's leading multi-cultural in a kind of fashion trend, promoting China's scientific and technological strength, so that people's self-esteem and self-confidence to a new historic high. While maintaining the premise of independent personality, a wide range of participation in international cooperation and all-round exchanges. In science and technology, we should pay attention to learn the advanced experience of other countries operating research projects with top-down mechanisms to the maximum extent possible to play everyone's wisdom; in the cultural field, we can not allow the wholesale Westernization denial about the havoc caused by traditional thinking , we can not conceited, arrogant, the most desirable is to make the fine tradition for thousands of years into their own behavior, the time "take-ism" and increase the influence of Chinese civilization, making it the world's diverse culture, a wonderful work .