世界人口的英语作文精品20篇

1、每个人都很重要 每个人都有贡献。

2、坚持计划生育基本国策，统筹解决人口问题，做促进人口、经济、社会、资源、环境协调可持续发展的贡献者。

3、广泛开展计划生育"幸福家庭行动"，实施小康工程进农户、奖励优惠政策进农户、婚育新风进农户、生殖健康进农户、计划生育法律法规进农户，积极参与社会主义新农村建设。

4、深入开展婚育新风进万家活动，形成科学文明进步的新型婚育观念。

6、以人为本、科学发展，始终把控制人口、节约资源、环境保护放在重要的战略位置，促进人与自然和谐发展。

7、统筹解决人口问题、促进人的全面发展，推动经济发展方式转变和社会科学发展。

8、感谢计划生育家庭为促进改革发展作出的积极贡献，维护计生家庭的生存发展权，帮助计生家庭实现优先发展。

9、稳定低生育水平，统筹解决人口问题，提高人口素质是你我共同的责任!

10、关注人口，促进性别均衡，创造社会和谐!

11、关爱今天的老人，就是关爱明天的自己。

Progress in science and the improvement of living conditions have led to the rapid growth of the world population. Modern medicine, for example, has made it possible for babies to grow up healthily and for people to live longer. With improved living conditions, particularly in the countryside, people tend to have larger families. As a result, the world population has increased so rapidly that it has now exceeded 6 billion.

But the overgrowth of population presents a threat to the existence of human society. A large population demands a GREat deal of food supply and shelter space. However, limited productivity and scarce world resources can hardly meet the needs of the ever-increasing population. Thus, in the long run, the overgrowth of the world population will only harm mankind.

To guarantee the steady development of human society, mankind must realize the consequences resulting from fast population growth and carry out a family planning programme. Only by adopting effective measures, can human society develop steadily and have a bright future.

Do you know the world book and copyright day is which day? How is the world reading day origin? In 1972, the United Nations to the call of "to the reading society" around the world, make reading become an indispensable part of Peoples Daily life, until 1995, UNESCO, announced every year on April 23, positioning the world book and copyright day.

UNESCO in 1972 to the call of "to the reading society" around the world, everyone asked social members of reading, the book is necessities of life, reading be everyone an integral part of everyday life.

In 1995, UNESCO announced on April 23, for "world reading day". This day is the Spanish writer Cervantes and famous British writer Shakespeares death anniversary. According to the data show that since the "world reading day" announced more than 1 00 countries and regions to participate in this activity.

In every year on April 23, the reading promotion into a home the joy of the festival.

你知道世界读书日是哪一天吗?世界读书日是怎样由来的?1972年，联合国向全世界发出“走向阅读社会”的召唤，让读书成为人们日常生活不可或缺的一部分，直到1995年，联合国科教文组织，宣布每年的4月23日，定位世界读书日。

联合国科教文组织在1972年向全世界发出“走向阅读社会”的召唤，要求社会成员人人读书，图书成为生活的必需品，读书成为每个人日常生活不可或缺的一部分。

1995年，联合国教科文组织宣布4月23日为“世界读书日”。这一天是西班牙作家塞万提斯和英国著名作家莎士比亚的辞世纪念日。据资料表明，自“世界读书日”宣布以来，已有超过1 00个国家和地区参与此项活动。

在每年的4月23日，各国把读书的宣传活动变成一场热热闹闹的欢乐节庆。

nothing in todays world is as big a problem as that of population. people begin to worry about the support capacity of the earth. and there might be only standing room for each person in the future.

limas population was 5. 7 million in 1985 but it grew to 9. 1 million in 2000. tianjins was 7.9 million in 1985. in 2000, it boosted to 9. 7 million. such cities as london, osaka, moscow, beijing, karachi, delhi, jakarta, seoul, and teheran are having a similar population growth. calcutta, shanghai, new york, and sto paulo see a faster population explosion. tokyo had 18.8 million in 1985. in 2000 it turned into 20.2 million. mexico city had 17.3 million people in 1985, but in 2000, its population reached 25.8 million!

what does the population growth mean? it means greater and greater consumption and greater pressure for the earth. if more people are added to the world population without our being alert or taking any action, we would have only standing room by the end of the 21st century.

each government and the un should see that population of each country and each city stops growing for the next fifty years.

Yesterday afternoon, when I was on my way home, it was snowing heavily. This morning, when I looked out of the windows, everything in the world turned white.

I know few people like winter, because it is so cold. But we all like snow, because it is so beautiful. After a heavy snow, the fields are covered with thick snow. We feel happy walking in the snow. And many people go out and take a lot of photos in the snow.

How wonderful the white world looks! I love snow!

[雪的世界英语作文

为让居民的家庭健康和谐，提高人口质量，7月7日，在第27个世界人口日来临之际，红会路街道红卫社区开展了以“情系育龄群众、服务计生家庭”为主题的世界人口日宣传活动。

社区工作人员深入居民中间，发放了《人口和计划生育政策法规》、《计生知识宣传手册》、《青春期保健》、《孕产期保健》、《避孕期保健》、《单独二孩办证所需材料》等有关资料，并为育龄妇女提供了避孕节育、优生优育、妇女常见病防治等各项宣传服务，为她们解答疑问。

本次活动涉及了优生优育、二胎审批、计生政策、早教知识、青春期健康、流动人口、药具咨询等多个方面，并免费为群众发放避孕药具80多盒、《计生知识宣传手册》40册、《单独二孩办证所需材料》36张，得到了广大群众的大力赞扬。

Every year on October 4th is the World Animal Day. It is proposed by the Italian monk St Francis in 12th century. He lives in the forests of Assisi Island for the long time, building a good relationship with the animals. So he asks people to express thanks to the animals on October 4th. He sets a good example for our human beings about how to deal with the relationship with animals. In order to memorize him and what he does, we make October, 4th to be World Animal Day. Nowadays, people from all over the world will hold various activities to celebrate on that day. The aim of this festival is to remind people to care for all animals and build a harmonious relationship with them.

每年的十月四日是世界动物日。它是由意大利修道士圣弗兰西斯在十二世纪提出的。他长期生活在阿西西岛上的森林中，与动物建立了良好的关系。所以他要求村民们在10月4日这天向动物表示感谢。他为如何正确处理与动物的关系树立了一个很好的榜样。后人为了纪念他和他所做的，我们把十月四号定为世界动物日。现在，在那一天来自世界各地的人会用各种活动来庆祝这一节日。这一节日的目的在于提醒人们关爱所有的动物，与他们建立和谐的关系。

It has been estimated that a thousand years ago there were less than 400 million people on earth. However, in the recent thousand years human population has increased nearly 20 times. Nowadays the world population has reached more than 7000 million. The population.

First, a lot of people cant get employment, which is a universal problem in the world. Second, in developing countries there are not enough shelters for too many people and so some people are not properly housed and even are exposed to the elements. Third, in underdeveloped countries a lot of people suffer from hunger because of food shortage, which in turn causes many other problems, malnutrition, disease, etc. Fourth, there are not enough schools for so many people and so a lot of people are illiterate.

Therefore, to eliminate these problems, human beings should take effective measures to control population.

In todays world there is no big problem as a population. People began to worry about the support of the earth. And theres probably only standing room for everyone in the future.

The population of Lima is 5. It was 7 million in 1985, but it grew to 9. 1 million in 2000. Tianjin was 790 million in 1985. In 2000, it increased to 9. 7 million dollars. London, Osaka, Moscow, Beijing, Karachi, New Delhi, Jakarta, Seoul and Tehrans population growth has a similar city. Calcutta, Shanghai, New York, St Paul and STO saw a faster population explosion. Tokyo has 18 million 800 thousand in 1985. It became 20 million 200 thousand in 2000. Mexico City had 17 million 300 thousand people in 1985, but in 2000, its population reached 25 million 800 thousand!

What does population growth mean? This means increasing consumption and greater soil pressure. If more people are added to our world, the population has not been warned or taken any action, we will only stand in the end of twenty-first Century.

Each government and the United Nations should see that each countrys population and each city stay for the next 50 years.

[人口增长小学生英语作文

World Health Day each year on April 7, is World Health Day, aimed at aroused the concern of the World to Health, Health work and to improve the quality of the peoples Health and knowledge, emphasize the importance of Health for the labor to create and happy life. In 1948, the first world health assembly quest to establish a "world health day" to commemorate the birth of the world health organization. Since 1950, world health day has been celebrated annually on April 7. Selected a theme for world health day each year, who focus on key areas.

In 1948, the first world health assembly quest to establish a "world health day" to commemorate the birth of the world health organization. Since 1950, world health day has been celebrated annually on April 7. Selected a theme for world health day each year, who focus on key areas.

World health day is a global opportunity, focus on the impact of the international community major public health problem. World health day start longer-term propaganda and planning, until April 7.

The world health organization (who) to the theme of world health day 2007 identified as "investment in health, to build security in the future", which calls for attention to the new and traditional diseases and major sudden public health crisis brings to the human disaster, increased investment in health care to ensure that future generations can live in security, development and prosperity of a harmonious society. The world health organization on April 2, was held in Singapore, entitled "the necessity to improve international health security" high-level debate. Countries in politics, business and media controller together, send a strong message: only immediately increased investment in health, to build a secure future for mankind.

每年的4月7日是世界卫生日World Health Day ，旨在引起世界对卫生、健康工作的关注，提高人们对卫生领域的素质和认识，强调健康对于劳动创造和幸福生活的重要性。1948年，第一届世界卫生大会要求建立“世界卫生日”以纪念世界卫生组织的诞生。自1950年以来，每年于4月7日庆祝世界卫生日。每年为世界卫生日选定一个主题，突出世卫组织关注的重点领域。

1948年，第一届世界卫生大会要求建立“世界卫生日”以纪念世界卫生组织的诞生。自1950年以来，每年于4月7日庆祝世界卫生日。每年为世界卫生日选定一个主题，突出世卫组织关注的重点领域。

世界卫生日是一次全球性机会，注重于影响国际社会的主要公共卫生问题。世界卫生日启动较长期宣传规划，持续至4月7日之后。

世界卫生组织把2007年世界卫生日的主题确定为“投资卫生,构建安全未来”,以此呼吁各国高度关注新型和传统疾病以及大规模突发性公共卫生危机给人类带来的灾难,增加卫生事业投资,确保子孙后代能够生活在安全、发展、繁荣的和谐社会中。世界卫生组织4月2日在新加坡召开了题为“改善国际卫生安全必要性”的高级别辩论会。各国政界、工商企业和媒体负责人聚集一堂,发出强烈信息：只有立即加大对卫生事业的投资,才能为人类构建安全的未来。

Since 1997, every year on April 11, was identified as "World Parkinsons Disease Day" (World Parkinson s diseases, Day). The day was the discoverer of the Parkinsons disease, the British physician Dr James Parkinsons birthday.

On April 11, 1997, the European federation of Parkinsons disease (EPDA) announced in its charter, Parkinsons disease has the following rights: 1, was introduced to the Parkinsons disease with a special interest in the field of the doctors rights; 2, the right to accept an accurate diagnosis; 3, easy to get the right to help or service; 4, accept the rights of the long-term care; 5, participate in the treatment process.

The world health organization (WHO) to support the world the determination of Parkinsons disease, and the agenda of the European federation of Parkinsons disease. The government departments and the social from all walks of life in many countries have chosen in Parkinsons disease theme activities on April 11th. The world health organization and some countries government department, international medical community and regional cooperation, jointly promote the research and treatment of Parkinsons disease.

从1997年开始，每年的4月11日被确定为“世界帕金森病日”(World Parkinsons Disease Day)。这一天是帕金森病的发现者——英国内科医生詹姆斯·帕金森博士的生日。

1997年4月11日，欧洲帕金森病联合会(EPDA)在其纲领中宣布，帕金森病患者拥有以下权利：1、被介绍给对帕金森病领域有特殊兴趣的医生的权利;2、接受准确诊断的权利;3、获得方便的帮助或服务的权利;4、接受长期照顾的权利;5、参与治疗过程的权利。

世界卫生组织(WHO)支持了世界帕金森病日的确定及欧洲帕金森病联合会的纲领。许多国家的政府部门和社会各界都选择在4月11日这天举办帕金森病主题活动。世界卫生组织还与一些国家政府部门、国际和地区医学团体合作，共同推动帕金森病的研究与治疗。

人口构成的这些变化将给政治革新和社会研究带来更大的挑战。

人口构成变化的可能影响,目前还是臆测为主

人口构成变化还将产生其他影响。从农村向城市的地理性移民将会同时向高速发展的城市和遭遇净人口损失的农村提出挑战。比如男女比例失调,在中国,男女新生儿比例为117:100,农村地区这个比例更为悬殊。家庭模式也可能产生变化,比如婚龄推迟、离婚率上升等等,所谓的“第二次人口构成变化”也可能加剧(“第二次人口构成变化”是指同居、单亲家庭、非婚生育以及低生育率等现象大幅度增多,以及更多人不愿结婚和接受约束性行为的传统规范的现象)。

挪威社会学家、联合国教科文组织国际社会科学委员会主席古德蒙·赫内斯认为,目前,关于人口构成变化的可能影响,主观臆测要多过可靠结论。但这种情形应该会引起广泛的比较研究,而且这种研究可能会对欧洲和中国的政策制定具有非常重要的借鉴意义。

in my opinion，the most important thing in the world is time.however long one may live，his life consists of a certain number of years，and a year has only12months，a month30days and one day24hours.once you waste one hour，you can not get it back no matter how much you would pay for it.

even though you are the richest person in the world，you can not afford to waste your time，because it means that you are wasting your life.even though you are the most powerful person in the world，one hour has60minutes for you just as for everyone else who struggles at the bottom of the society.

some people think that the most important thing in the world is money.in their opinion，if you have enough money，you will have everything you want.i would like to ask them a simple question：can you buy time?

the only thing with which we can win more time is efficiency.if you work with high efficiency，you can do more in a certain period of time than other people.

Tobacco is a wild plant growth in central and South America, the first Indian to chewing tobacco or cigarette burning to suck. Tobacco in the global popular for over 200 years, until the 20th century, mankind began to realize that the dangers of tobacco to human. In 1977, the American cancer society first puts forward the control smoking is a form of publicity and education, no tobacco day.

This day, in the United States for nationwide smoking harm health propaganda, dissuade smokers do not smoke in the day, shop a day halt to the sale of tobacco products. The United States put every November 3 weeks on Thursday as the countrys no tobacco day. Later, the United Kingdom, Malaysia, China and other countries and regions also successively formulated the no tobacco day. In November 1987, the UNs world health organization recommends will every year on April 7, as the "world no tobacco day", and in 1988 began to perform. But was established by the world health organization on April 7, anniversary, this day each year, the world health organization (who) has to request a health topics. In order not to interfere with the theme of health, the world health organization decided to will each year since 1989 on May 31 as world no tobacco day, China will as Chinas day that day.

烟草是生长在南美洲的一种野生植物，最初印第安人将烟叶口嚼或做成卷烟燃烧吸吮。烟草在全球盛行了200多年，直到20世纪，人类才开始认识到烟草对人类的危害。1977年，美国癌肿协会首先提出了控制吸烟的一种宣传教育方式——无烟日。

这天，在美国全国范围内进行“吸烟危害健康”的宣传，劝阻吸烟者在当天不吸烟，商店停售烟草制品一天。美国把每年11月第3周的星期四定为本国的无烟日。以后，英国、马来西亚、中国等国家和地区也相继制定了无烟日。 1987年11月，联合国世界卫生组织建议将每年的4月7日定为“世界无烟日”，并于1988年开始执行。但因4月7日是世界卫生组织成立的纪念日，每年的这一天，世界卫生组织都要提出一项保健要求的主题。为了不干扰其卫生主题的提出，世界卫生组织决定从1989年起将每年的5月31日定为世界无烟日，中国也将该日作为中国的无烟日。

Sunday, my mother and I go to buy vegetables. I went to the vegetable market on the edge of the river, on the surface of the river is in a plastic bag, selling vegetables in plastic bags, people are using plastic bags, I remember the teacher said: a plastic bag to one square metre of land always useless, but for twenty years.

For our children, for our beautiful home, Ill initiative to use less plastic bags, shopping with a basket to let everyone keep up a potted flower. Love our earth, the love of beauty a pieces of foam grass dont use disposable chopsticks and lunch boxes. Stay away from the white pollution.

This HuanBaoRi let us love home, love the earth, away from pollution. Not contaminated.

I hope that every day is HuanBaoRi!

星期天，我和妈妈去买菜。我来到了菜市场边上的小河一看，小河的水面上都是塑料袋，卖菜的人在用塑料袋，人们也在用塑料袋，我想起老师说的话：一个塑料袋会把一平方米的地永远没用，可是要二十年。

为了我们的子孙后代，为了我们的美好家园，由我来倡议大家少用塑料袋，买菜用菜篮子让大家养起一盆花。爱我们的地球，爱美一片草地不用一次性筷子和泡沫饭盒。远离白色污染。

这个环保日让我们爱家园，爱地球，离开污染。不用污染过的东西。

我希望天天都是环保日!

In 1971, the Spanish naturalists suggested that we should set up a day to call on people to protect the forest and make the full use of it. Then the representatives of the naturalists from all over the world decided that March 21 is the world forest day. In some countries, this day is also deemed as the tree-planting day. After 4 decades, the world forest day is more than a day to call on people to protect the forest, making people realize the relations between human being and the forest is also the aim of the forest day.

在1971年,西班牙的自然学家提出人们应该设立一个节日来号召民众保护森林,并尽其所用。然后来自世界各地的自然学家的代表们决定把每年的3月21日定为世界森林日。在某些国家,这一天也被认定为是植树节。40年过去了,世界森林日也不仅仅是号召大家保护森林的节日,它也是帮助人们意识到人类与森林关系的节日。

It’s generally accepted that the forest has the functions of cooling off the global temperature, refreshing the air, preserving soil and water, protecting the nature links and so on. The forest is also the key to solve the severe environmental problems. In American Indian’s cultural, the local people believe that the forest raise up the sky. If the forest disappears, the sky will collapse, and the living beings would die out. With the rapid development of human society, the forest coverage rate is decrease. While the demands of the woods and papers products keep increasing. It can hardly meet the needs of human beings. Everyday, countless trees are cutting down to make various paper products. In order to make more money, people destroy the forests, and there comes different kinds of problems. For instance, soil erosion, global warming, glaciers melting, and sea level rising. The forest is so important to this planet. We should do something to protect the forest.

人们普遍认为森林具有降温、净化空气、保护水土和维持自然链等功能。森林也是解决严峻环境问题的关键。在美洲的印第安人文化中,当地人认为树木撑起了天空,如果森林消失,那么天空就会塌陷,世界上的生物就会随之灭亡。随着人类社会的快速发展,森林覆盖率在逐渐下降。而人们对木材及纸制品的需求量日益增长,所砍伐的树木难以满足人们的需求。每一天,不计其数的树木被做成各种各样的纸制品。为了赚更多的钱,人们摧毁了森林,然而问题也随之而来。例如:水土流失、气候变暖、冰川融化、海平面上升等等。森林对我们的地球来说如此的重要,我们应该好好保护它。

First, stop cutting down the forest blindly. If we really have to, plant more trees. Second, the government should do something to enhance the people’s awareness of forest protection. Last but not least, we can reduce the use of paper, such as avoid using disposable paper goods. Protect the forest is to protect ourselves. Without the forest, we can not live on the earth either.

首先,我们要停止盲目的砍伐森林。如果不得不这样做,那就种植更多的树木。其次,政府宣传森林的重要性,以此提高普通民众保护森林的意识。最后,我们应该减少纸质用品,例如避免使用一次性的纸制品。保护森林就是保护我们自己。没有了森林,我们也不能存活在地球之上。

回答：7月11日。

1987年7月11日，前南斯拉夫的一个婴儿降生，被联合国象征性地认定为是地球上第50亿个人，并宣布地球人口突破50亿大关。联合国人口活动基金会(UNFPA)倡议将这一天定为“世界50亿人口日”。1990年，联合国决定将每年的七月十一日定为“世界人口日”，以唤起人们对人口问题的关注。

根据联合国开发计划署理事会第36届会议建议，为引起世界各国政府和人民对人口问题的重视，联合国人口基金要求各国政府、民间团体在此期间开展“世界人口日”活动。此后，世界各国都要开展宣传活动。

1995年2月15日零点，北京妇产医院一个重3700克的婴儿出生，宣告中国第12亿个公民的到来。距1989年4月11日“11亿人口日”不足2000天,庞大的人口列车又增加了1亿名新乘客。

1999年10月12日世界人口达60亿联合国确定为世界“60亿人口日”。

My father made me a little cabin on the tree when I was five years old. I like this cabin so much, it is my little world. I put many toys in it, I decorate this cabin so well. I can do what I want in this little world, sometimes I will ask my friends to come. I have a good time in my little world.

我的爸爸在我五岁的时候给我在树上弄了个小屋。我很喜欢这个小屋，它是我的小小世界。我方了很多玩具在那里，我把这个小屋装扮得很好。在这个小小的世界里，我能为所欲为，有时候我会叫我的朋友来玩。我度过了美好的时光。

Watching the les miserables, jean valjean tall image always emerge in front of my eyes. He is ready to help others, honest is good, good character, although due to the forced by life, had made some mistake, but this does not affect his personality, because he spent a lifetime in continuously improve their difficulties and adversity.

Jean valjean was out of work, because life poverty, he stole a loaf of bread, was caught in prison, the evil old society! After prison, he was leader of bent on revenge influence restored confidence in life and aspire to from good, he came to monte, renamed Madeleine, set up factories, became a millionaire, has helped many people, as the mayor. Integrity, however, he didnt want to let others take the rap for him and was put into prison...

What kind of jean valjean, he good for bad, ready to help others, raising a baby, you planned to. In order to make cosette happiness, have the courage to admits his true identity, this need how much courage, how much love! Although repeatedly by the peoples misunderstanding and discrimination, but jean valjean always abide by the promise of the bishop, silently to do an honest, kind person.

I moved for jean valjean, if we can face up to its own like jean valjean error, can try their best to correct, look at the world with a heart of universal love, our world will become more beautiful. Im sad for jean valjean, for his newspaper, if jean valjean had life in socialist China, so his experience might not be so rough.

看完《悲惨世界》一书，冉阿让高大的形象始终浮现在我的眼前。他乐于助人，淳朴善良，品格高尚，虽然由于生活所迫，曾犯过一些错，但这并没有影响他的人格，因为他用了一生的时间在艰辛和逆境中不断地完善自己。

冉阿让失业了，因为生活贫因，他偷了一块面包，就被抓住关进监狱，万恶的旧社会!出狱后，一心想报复的他受教主的感化恢复了对生活的信心并立志从善，他来到蒙特亿，改名马德兰，开办工厂，成了富翁，帮助了许许多多的人，当上了市长。然而，为人正直的他由于不想让别人替他顶罪又被抓进监狱……

多么善良的冉阿让，他以德报怨，乐于助人，抚养孤女，不求回报。为了让珂赛特获得幸福，勇于坦言自己的真实身份，这需要多大的勇气，需要多大的爱心啊!虽然一再地受人们的误解和歧视，但冉阿让始终默默地遵守对主教的诺言，做一个正直，善良的人。

我为冉阿让而感动，如果我们都能像冉阿让那样勇敢面对自己的错误，尽自己所能去改正，以一颗博爱的心去看世界，那我们的世界将变得更美好。我为冉阿让而难过，为他报不平，如果冉阿让生活在社会主义的中国，那么他的经历也许就不会那么坎坷了。

In Britain we are often told that people are leaving the big cities to live in the countryside but is this the case worldwide?

Not at all. If you look at the biggest cities in 1950, seven out of the top ten were in the developed countries but by the year 2000, the developing countries will have eight out of the top ten. New York, which in 1950 was number one with a population of around 12 million, will only be the sixth largest city in the world but with an extra 2 million. And London? London, which was number two, wont even be in the top ten. Its population in 1950, by the way, was about 10 million. And why is this happening? Why are people moving to the big cities from the country in developing countries? The reasons are complex but many are moving to look for work. And the problems this creates are enormous.

Its estimated that 26 million people will be living in Mexico City by the year 2000, with Sao Paulo in Brazil not far behind.

目前，关于人口构成变化的可能影响，主观臆测要多过可靠结论。但这种情形应该会引起广泛的比较研究，而且这种研究可能会对欧洲和中国的政策制定具有非常重要的借鉴意义。

人口普查是当今世界搜集人口资料的一种最基本的科学方法，世界各国都异常重视，但基于国情的不同，各国的人口普查又各有特点。

世界人口结构中，欧洲将持续边缘化

人口构成的这些变化将给政治革新和社会研究带来更大的挑战。

人口构成变化的可能影响，目前还是臆测为主

人口构成变化还将产生其他影响。从农村向城市的地理性移民将会同时向高速发展的城市和遭遇净人口损失的农村提出挑战。比如男女比例失调，在中国，男女新生儿比例为117：100，农村地区这个比例更为悬殊。家庭模式也可能产生变化，比如婚龄推迟、离婚率上升等等，所谓的“第二次人口构成变化”也可能加剧（“第二次人口构成变化”是指同居、单亲家庭、非婚生育以及低生育率等现象大幅度增多，以及更多人不愿结婚和接受约束性行为的传统规范的现象）。

挪威社会学家、联合国教科文组织国际社会科学委员会主席古德蒙·赫内斯认为，目前，关于人口构成变化的可能影响，主观臆测要多过可靠结论。但这种情形应该会引起广泛的比较研究，而且这种研究可能会对欧洲和中国的政策制定具有非常重要的借鉴意义。

世界人口普查

俄罗斯 根据俄罗斯联邦《居民人口普查法》，俄罗斯每十年至少应该举行一次人口普查。人口普查的时间精确到时，即年、月、日、时。20xx年的人口普查是苏联解体后俄罗斯进行的首次人口普查，对于国家掌握居民情况和制定社会发展计划发挥了重要作用。那次人口普查使政府获得了关于人口数量、年龄、性别、婚姻状况、民族成分、受教育程度、家庭副业、就业与收入、住宅状况等资料，既有联邦范围的，也有地区的。最重要的是获得了社会民族结构方面的信息。政府根据这些信息及时调整了国家和地区的社会发展规划。