人类人口问题的英语作文精选20篇

Good afternoon, everyone!

We are studying in this school, and it is our duty to keep it clean and tidy. It’s not good to spit in public places, such as in the school library, in the classroom, etc. We should neither draw pictures on the walls nor throw rubbish here and there. I think we must make it a rule to do some cleaning every day. If everyone tried his best to do something useful for our school, I’m sure it will be more and more beautiful.

That’s all. Thank you.

Safety is very important. We often hear people say “safety first”. As a middle school student, we should learn to protect ourselves from every possible danger. Here are some things I do. I hope you can follow them.

On your way to school and home. You should obey the traffic rules. You should walk on the right side of the road. Don’t ride your bike too fast.

During school, you can’t fight with each other. Don’t play with fire. Don’t bring knife to school. Don’t go out of school without your teacher’s permission.

When you are at home, remember not to ask the door for strangers. Don’t give your home address, phone number or personal information to anybody else too casually.

View of two children

now, our country the number of straight line rise, because the two population increasing, a series of problem, here, Ill give you something about with that!

The current family planning policy is unfair, urban residents having only one child, rural residents the first child is female of, can have two children. To have two children, however, leads to the housing problem, population increase, also takes more house, now scientists show that Chinas housing life for 30 years, while western countries housing service life is 2 times of our country, therefore, our countrys house of fast, down too fast, the house is always not enough, so a few people who are facing problems dont have a house to live.

Today, our countrys arable land has also been a lot of problems, such as: 1, due to the large area reclamation woodland lawn, cultivated land is widening. 2, due to the large-scale afforestation, reduce cultivated land quickly. 3, due to water loss and soil erosion, land desertification, human development blindly, arable land decrease quickly. 4, due to the impact of foreign agricultural products, a large number of cultivated land desolate. Because of population increase, to a large number of land reclamation, to a large number of occupation of land, only in this way can we have a new technology, will have a house to live in. So, our countrys land area is greatly reduced. But, our country a lot of land is occupied, can continuously reduce the cultivated land area, arable land decrease, many kinds of food less, even some people starve to death. Two population increase, the employment problem also more and more competition, such as: 1, the our country population base is big, need more employment, employment peak last a long time. 2, needs to improve employment mechanism, talent market, labor market development has yet to be perfected, labor elements configuration has not yet reached full optimization. 3, employment concept updating, lack of initiative entrepreneurial enthusiasm, "such as" "by" the ideas of the "to" still exist, not from their own and realistic environment, employment expectations are too high. So, young people in employment in our country may not work, cant bring home the bacon. In order to themselves and others in the future, please have fewer, eugenics. Boy or girl, is the backbone of the motherland in the future.

对二胎的看法

现在，我国的人数直线上升，因为生二胎人口增多，造成的一系列问题，下面，我给大家加讲一讲吧!

现行的计生政策不公平，城市居民只能生一胎，农村居民第一孩字是女的，能生二胎。可是，生二胎会导致住房问题，人口增多，需要的房子也多，如今科学家证明我国的住房寿命达30年，而西方国家的住房寿命是我国的2倍以上，所以，我国的房子修的快，拆的也快，房子始终不够，因此少数人正面临没有房子住的问题。

如今，我国的耕地也受到了很大的问题，如：1、由于大面积垦林地草地，耕地不断扩大。2、由于大规模造林，使耕地迅速减少。3、由于水土流失，土地沙漠化，人类盲目开发，耕地面积迅速减少。4、由于外国农产品冲击，大批耕地荒芜。就是因为人口增多，才大量的开垦，才大量占用土地，就只这样我们才能有新科技，才会有房子住。所以，我国的耕地面积大大减少。可是，我国大量的土地都被占用，耕地面积就只能不断的减少，耕地减少，种的菜就少了许多，甚至有些人被饿死。生二胎人口增多，就业问题竞争的人也越来越多，如：1、我国人口基数大，需要就业人员多，就业高峰持续时间长。2、就业机制有待完善，人才市场、劳动力市场发育还有待完善，劳动力要素的配置还未达到完全优化。3、就业观念有待更新，缺乏主动择业创业的积极性，“等”“靠”“要”的思想仍然存在，不从自身和现实环境出发，就业期望值过高。所以，我国年青人在就业方面有可能没有工作，就不可以养家糊口。为了自己和他人的未来，请少生、优生。生男生女都一样，都是祖国未来的栋梁。

导语：人口控制是指减少人口增长，一般是通过减少出生率来实现，下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

Currently, there is a widespread concern about the previously neglected connection between growing human population and decreasing wild species. As the two graphs obviously portrayed, American population in 1980 was 250 times than that in 1800, a trend accompanied by the extinction of nearly 70 kinds of wildlife in the past 300 years. A clear correlation is suggested that mankind has exerted a tremendously negative influence on natural species.

There are many factors responsible for the aforementioned tendency. First and foremost, to satisfy the space demand for the booming population, the only available solution for Americans is to take occupation of forests and grassland. that used to be habitat of wild animals and plants. Furthermore, the process of industrialization and urbanization has generated severe pollution that essentially destroys environment and ecosystem.

In my point of view, the dearth of wildlife today forecasts an unpromising future for humans tomorrow. In order to eliminate species extinction, relevant laws and regulations must be established and enforced to maintain a large portion of unspoiled areas. Effective measures should also be applied to ensure that the impact of pollution be removed.

【参考译文】

目前，人们普遍关注以前忽视的人口增长与减少野生物种之间的关系。正如这两幅图所描绘的，1980的美国人口是1800年的250倍，这是近300年来近70种野生动物灭绝的趋势。一个明显的相关性表明，人类对自然物种产生了巨大的负面影响。

有许多因素负责上述趋势。首先，为了满足人口增长的空间需求，美国人唯一可行的解决办法是占领森林和草原。那曾经是野生动植物的栖息地。此外，工业化和城市化进程产生了严重的污染，基本上破坏了环境和生态系统。

在我看来，今天的野生动物缺乏预测人类没有未来的明天。为了减少物种灭绝，应该制定相关的法律法规和执行保持大部分的原始生态区。还应采取有效措施，以消除污染的影响。

The first fifty years of the next millennium will be critical for the worlds population. By 2050 population growth should have leveled off, but by then well have 10 billion people--two-thirds as many again as we have today.The rate of population growth is something we can choose right now, though: its not something that just happens, but a matter of human choice. The choice is a complicated one,with many variables, but it remains a choice.

If we want to prevent a population explosion, we should take action now -or assist the poorer countries to do so. They need better government, better institutions, better labor and capital markets, better schools.

Anything that increases the value of womens time and adds to the cost of caring for a child makes a woman less likely to have that child. Since big families are often seen as safety nets for illness and old age, improving poor peoples access to insurance, pensions and welfare institutions also has a major impact. This can be as simple as rural credit, providing a means of saving. Finally, there is education--both for women and, perhaps even more important, for the next generation of children.

These steps are there to be taken, but there appear to be some countries that are not seriously trying at the moment. If we cannot achieve that we will certainly not control population.

That said, I dont feel pessimistic that we are going to run out of resources: we are becoming more efficient at producing food faster than the rate at which population is increasing. There is, however, a risk that we will wreck the environment so effectively that the world will no longer be an attractive place to live. That really would be a dismal outcome, to reach world population equilibrium only to find wed destroyed the natural environment in the process.

翻译：

第一个五十年的下一年世界人口将至关重要。到2050年人口增长应该趋于平稳,但那时我们将有100亿人——我们今天三分之二尽可能多的再次。人口的增长是我们可以选择现在,尽管:这不是刚好,但人类选择的问题。选择是一个复杂的,有许多变量,但它仍然是一个选择。

如果我们想避免人口爆炸,我们现在应该采取行动或者帮助贫穷国家。他们需要更好的政府,更好的制度,更好的劳动力和资本市场,更好的学校。

任何增加的价值,女性的时间和增加了的成本照顾一个孩子会让一个女人更不可能有孩子。自大家庭往往被视为安全网疾病和衰老,改善贫困人口获得保险、退休金和福利机构也有重大影响。这可以简单如农村信用,提供储蓄的一种手段。最后,还有教育,对于女性来说,也许更重要的是,对于下一代的孩子。

有采取这些步骤,但似乎有些国家不认真努力。如果我们不能实现,我们将肯定不是控制人口。

说,我不觉得悲观,我们将耗尽资源:我们正变得更有效地生产粮食的速度比人口增长的速度。然而,风险,我们将有效地破坏环境,世界将不再是一个吸引人居住的地方。这确实是一个可悲的结果,实现了人口的平衡却发现在这个过程中我们破坏了自然环境。

The large number of our population has become one of the most serious problems of our society. According to a recent survey of the National Bureau of Statistics, there are more than 1.3 billion people in our country, which account for about 1/5 of all the people in the world. The same survey also predicts that our population will grow quickly in the years to come.

Overpopulation has brought about a series of negative effects to our economic development and social security. In the first place, too many people impose a heavy burden on our environment. As a result, we suffer from a shortage of fresh water and natural resources. In the second place, as the supply of labor greatly exceeds the demand of the society, many people become employed. This is a source of social unrest. Last but not least, we have to manufacture all kinds of products to meet the needs of the people, which causes environment pollution to our lakes and land.

Serious though the problem seems, we have to take some measures to tackle it. On the one hand, the government should carry out more strictly the policy of family planning, thus reducing the total number of population. On the other hand, all the people should realize the harms of overpopulation. With the concerted efforts of all the parties concerned, we’re sure to solve the problem in the future.

越来越多汽车进入我们的家庭生活，改善了我们的生活，但同时也带来了很多问题，如塞车和车祸，给家庭和社会带来极大的危害。作为中学生，我们应该怎样做呢?

请写一篇有关交通安全的短文(80字左右)

内容包含：

(1)遵守交通规则，如走人行道/过斑马线。

(2)别在街道上或马路上玩耍和踢球。

(3)劝父母不能酒后驾车。

你可以适当增加内容，让短文通顺，过渡自然。

参考词汇：sidewalk 人行道、zebra-crossing 斑马线

注：第一段已给出，不计入总数

范文

With more and more cars coming into our families, we are happy that it has greatly improved our life. But unluckily, it has also brought many problems, such as heavy traffic and traffic accidents。

Traffic safety is everybodys business. We must obey the rules. For example, we must walk on walk side, when we cross zebra – crossing, stop and look right and left, then go across fast. Don’t play football on the road .we can tell our parents not to drink before they drive, not to run through red lights, not to talk and laugh while driving etc。

We can say cars are coming into our life, but only when everybody thinks traffic safety is everybodys business can we be safe driving on roads and walking on sidewalks。

随着越来越多的汽车进入我们的家庭,我们是快乐的,它大大提高了我们的生活。但不巧的是,它也带来了许多问题,如交通拥挤和交通事故。

交通安全是每个人的事。我们必须遵守规则。例如,我们必须走一边走,当我们穿过斑马——穿越,停下来看看左和右,然后快速穿过。不要在马路上踢足球。我们可以告诉我们的父母不开车前喝酒,不要闯红灯,开车时不说话和大笑等。

我们可以说汽车进入我们的生活,但是只有当所有人都认为交通安全是每个人的业务我们可以安全驾驶在道路和人行道上走。

中国的人口问题和环境问题几乎是同时被人们重视起来的。人们将中国人口数量过多作为环境恶化的根本原因，将人口与环境对立起来，使很多人认为，要想从根本上解决中国的环境问题，就应该努力地削减中国的人口。但是，我们可以举个简单的例子：中国的森林面积在逐年减少，沙漠面积在逐年扩大，空气和水体质量越来越差，如果我们单纯地与俄罗斯、加拿大、美国、澳大利亚等国家相比，是很容易得出“人口少则环境好”这样的结论的。然而如果我们与日本、新加坡这些国家相比，就只能承认我们在环保意识和环保工作方面的差距。所以，我们可以说人口数量不是根本问题!

要创造和谐的人口与环境，我认为提高人口素质是减缓环境恶化的关键。它一方面受遗传因素的影响。比如“母强儿壮”反映了先天因素对人口身体素质有重要影响。再如白化病等很多疾病都属于遗传病，两个携带致病基因的人结合很有可能给下一代造成不幸。所以社会提倡优生优育，禁止近亲结婚。另一方面受社会和自然因素的影响。比如我国封建社会妇女裹足对人身健康的摧残;古巴比伦王国由于社会伦理道德的败坏导致文明的衰落等等。人类社会发展到今天，人口身体素质的高低，越来越取决于社会环境因素。人们对身体素质的要求越来越高，到处可见人们晨练的身影，并且平时的问候语也经常听到：“身体好吗?”这样的话，人们不再追求吃饱，而是讲究吃得健康，“有健康才有将来”已经逐渐成为人们生活的信条;比如电信业的发展具有的微波辐射污染，现在家庭电脑普及，手机泛滥，电器设备应有尽有;交通业建筑业等噪音污染，特别是日益发达的交通事业，汽车成为代步工具，虽然加快了生活节奏，但也加速了尾气的排放，加大了环境污染;日益发展的工业企业排放的有毒物质，严重影响了土壤、森林、气候，破坏了生态平衡。导致很多地方出现泥石流，山体滑坡现象。以上这些引起的环境问题都会通过空气、呼吸携带传染物，传染到人体，给人造成致命的伤害。这些自然环境对人口身体素质的影响也都是决定性的。

所以，人口与环境的问题不是决定与被决定的关系，而是相互统一的关系。提高全民的人口素质，会使我们的环境更加的美化;同样创造更加美好的社会和自然环境会让人口素质迅速提升，只有这样，我们的社会才更加和谐，更加美丽!

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。

It is a fact that college is becoming more and more expensive and college life is becoming especially hard for the students who were born in needy families. However, there are several ways in which these students can cover their tuition that their parents are not able to afford. Finding a part-time job, for example, is an ideal way. Besides, one can ask the bank for a loan and repay it when he has the ability. Finally, one can seek assistance from the society.

For me, earning tuition by doing part-time jobs is the most suitable way. First, I learn to be independent both mentally and economically in this way. Apart from this, I no longer need to wor-ry my parents with so heavy a burden. Finally, since I earn my own living, I will be more confi-dent with myself and, therefore, I can live a busy but meaningful college life.

导语：越来越多的车给我们的生活带来了极大的危害，下面是yuwenmi小编为大家整理的优秀英语作文，欢迎阅读与借鉴，谢谢!

越来越多汽车进入我们的家庭生活，改善了我们的生活，但同时也带来了很多问题，如塞车和车祸，给家庭和社会带来极大的危害。作为中学生，我们应该怎样做呢?

请写一篇有关交通安全的短文(80字左右)

内容包含：

遵守交通规则，如走人行道/过斑马线。

别在街道上或马路上玩耍和踢球。

劝父母不能酒后驾车。

你可以适当增加内容，让短文通顺，过渡自然。

参考词汇：sidewalk 人行道 zebra-crossing 斑马线

注：第一段已给出，不计入总数

★ 范文

With more and more cars coming into our families, we are happy that it has greatly improved our life. But unluckily, it has also brought many problems, such as heavy traffic and traffic accidents.

Traffic safety is everybodys business. We must obey the rules. For example, we must walk on sidewalks , when we cross zebra – crossing, stop and look right and left, and then go across fast. Don’t play football on the road .we can tell our parents not to drink before they drive, not to run through red lights, not to talk and laugh while driving etc.

We can say cars are coming into our life, but only when everybody thinks traffic safety is everybodys business can we be safe driving on roads and walking on sidewalks.

【汉语翻译】

随着越来越多的汽车进入我们的家庭，我们很高兴它极大地改善了我们的生活。但不幸的是，它也带来了许多问题，如交通拥挤和交通事故。

交通安全人人有责。我们必须遵守规定!例如，我们必须走在人行道上，穿过斑马线，停下来左右看，然后过得很快。不要在马路上踢足球，我们可以告诉我们的父母在开车之前不要喝酒，不要闯红灯，不要在开车时说话和大笑。

我们可以说汽车正走进我们的生活，但只有当每个人都认为交通安全是每个人的事时，我们才能安全地在路上开车和在人行道上行走。

Better City ，Better life

优质的城市，优质的生活

Environmental problem has become an important and crucial issue. The abysmal lack of fresh water, the desertification, the green house effect and the extinction of creatures are the main issues in environment.

环境问题已成为一个重要和关键的问题。恶化的淡水缺乏，沙漠化，温室效应和生物灭绝是环境的主要问题。

With each second that passes, a water crisis takes another step closer to reality. Consumption of fresh water has tripled since 1950; and fresh water is becoming a very scarce resource. Agricultural practices, mainly irrigation, account for 67% of world water consumption. Over one billion people worldwide dont have access to clean drinking water. So it is incumbent upon all to respect every drop of water and avoid the generation of waste.

随着每一秒的过去，水危机用其他的方法去接近现实。新鲜水用量自1950年以来已经翻了两番;和淡水已成为一个非常稀缺的资源。农业实践，主要是灌溉，为世界用水量67％以上。全世界十几亿人无法获得干净的饮用水。因此，呼吁所有有责任尊重每一滴水，避免废物的产生。

The soil under our feet is also getting away from us. Removal of the natural vegetation leaves extensive tracts of land devoid of a plant cover and susceptible to wind and water erosion. Finally, desertification is accomplished. Four specific activities have been identified as major contributors to the desertification processes: over-cultivation, overgrazing, firewood gathering, and over-irrigation. The extreme seriousness of desertification results from the great difficulty in reversing or even slowing the process. Once the soil has been removed by erosion, only the passage of centuries or millennia will enable new soil to form. The tree planting is a dominant contributor to the development of the disaster. Another effective measure is to restrain the utilization of the land and to exploit the new technology to improve the productiveness of the arable land.

在我们脚下的土地也越来越远离我们。自然植被因为缺乏土地植被和易受风蚀和水蚀而死亡。最后，荒漠化完成。四项具体活动已被确定为对荒漠化的主要导致的过程：过度农垦，过度放牧，薪柴采集和过度灌溉。荒漠化的极端严重性，导致减缓甚至逆转这一过程非常困难。一旦土壤被侵蚀，只有几百年或几千年的才能抵御，使新的土壤形成。主要控制灾情发展都归功于植树。另一个是抑制土地利用率和利用新科技来提高耕地生产率的有效措施。

Our globe is warming up. GHG gases are the main contributor. Carbon dioxide emissions to air are almost exclusively associated with the conversion of energy carriers like natural gas, crude oil, and so forth. Optimization of energy efficiency and, thus, reduction of CO2-emissions and reduction of other GHG emissions contributed from production processes may be the first to be

discussed. And the mitigation of carbon emissions through the development of alternative projects such as solar or wind energy or reforestation, represents one way of managing a carbon footprint.

我们的地球正在变暖了。温室气体是主要的来源。二氧化碳排放到空气中几乎都是在像天然气，原油等能源载体的转换有关。能源效率，因此优化，二氧化碳的排放和其他温室气体减排贡献减少，生产工艺，第一次将要被讨论。发展减缓碳排放量，如通过太阳能或风能或重新造林的替代项目，代表一个管理方式的碳足迹。

The greed of human beings is using up the plants and animals. Tigers once roamed over most of Asia and we can only see them in the zoo. Whales are once the dominant species in the ocean and now they have got out of our sight because of over-harvesting. We must stop harvesting natural resources to excess and bring them back from the brink of extinction. If we take from the wild we must do it in ways that allow natural populations to recover and last long into the future.

人类的贪婪是使用了植物和动物。猛虎组织一度横跨了亚洲大部分地区，我们只能在动物园里看到它们。鲸是海洋中的一次优势种，现在他们现在已经离开了我们的视线，因为过度捕捞。我们必须停止过度采伐天然资源，从他们来的地方，带来了灭绝的边缘。如果我们在野外，我们必须采取的这样的方式使自然种群的恢复和持续，一直持续到未来很长的时间里。

The earth is not the human’s planet, it is our planet. It’s time to take measures to improve the environment for both humans and other creatures. A safe, clean and sustainable environment depends on more than lip service. Both the government and individuals have the responsibility to minimize direct impacts against the environment. All of us can start planting plants in our home, limiting the use of private cars and using public transportations. And the government should impose necessary standards upon the whole society. The beautiful and vigorous earth will come back soon.

地球不是人类的星球，它是我们的星球。现在是时候应该采取措施改善人类和其他生物的环境了。一个安全，清洁和可持续的环境不是取决于纸上谈兵。无论是政府和个人都有责任，尽量减少对环境的直接影响。我们都可以在我们的家开始种植植物，限制私家车的使用和使用公共交通。政府应强加给整个社会所必需的标准。美丽和活力地球将会很快回来。

假定你叫张华，最近从报纸上得知美国某公司将在你的家乡建一座工厂，请给该公司写封电子邮件。要点如下：

1.表示欢迎：有利于家乡发展等;

2.感到担忧：造成环境污染等;

3.希望了解有关环保措施及更多信息。

注意：1.词数80-100;

2.请不要逐句翻译，可适当发挥，以使行文连贯;

3.邮件的开头和结尾已为你写好，不计入总词数。

dear sir or madam:

Im a middle school student.

_______________________________________________________________________.

Im looking forward to hearing form you.

Yours faithfully

Zhang Hua

范文：

Dear sir or madam:

Im a middle school student. I have recently leamed from the newspaper that you are going to build a factory here in my hometown. There is no doubt that it is good for development of my hometown and it will provide us with more jobs. most of us stand by the program. however,some of us are worried that the factory will make much noise and pollute the environment of the area. I would like to know whether you have any plans for the environment protection. Would you please offer us more information about it?

Im looking forward to hearing form you.

Yours faithfully

Zhang Hua

(一)全球气候变暖

由于人口的增加和人类生产活动的规模越来越大，向大气释放的二氧化碳(CO2)、甲烷(CH4)、一氧化二氮(N2O)、氯氟碳化合物(CFC)、四氯化碳(CCl4)、一氧化碳(CO)等温室气体不断增加，导致大气的组成发生变化。大气质量受到影响，气候有逐渐变暖的趋势。由于全球气候变暖，将会对全球产生各种不同的影响，较高的温度可使极地冰川融化，海平面每10年将升高6厘米，因而将使一些海岸地区被淹没。全球变暖也可能影响到降雨和大气环流的变化，使气候反常，易造成旱涝灾害，这些都可能导致生态系统发生变化和破坏，全球气候变化将对人类生活产生一系列重大影响。

(二)臭氧层的耗损与破坏

在离地球表面10~50千米的大气平流层中集中了地球上90%的臭氧气体，在离地面25千米处臭氧浓度最大，形成了厚度约为3毫米的臭氧集中层，称为臭氧层。它能吸收太阳的紫外线，以保护地球上的生命免遭过量紫外线的伤害，并将能量贮存在上层大气，起到调节气候的作用。但臭氧层是一个很脆弱的大气层，如果进入一些破坏臭氧的气体，它们就会和臭氧发生化学作用，臭氧层就会遭到破坏。臭氧层被破坏，将使地面受到紫外线辐射的强度增加，给地球上的生命带来很大的危害。研究表明，紫外线辐射能破坏生物蛋白质和基因物质脱氧核糖核酸，造成细胞死亡;使人类皮肤癌发病率增高;伤害眼睛，导致白内障而使眼睛失明;抑制植物如大豆、瓜类、蔬菜等的生长，并穿透10米深的水层，杀死浮游生物和微生物，从而危及水中生物的食物链和自由氧的来源，影响生态平衡和水体的自净能力。

(三)生物多样性减少

《生物多样性公约》指出，生物多样性“是指所有来源的形形色色的生物体，这些来源包括陆地、海洋和其他水生生态系统及其所构成的生态综合体;它包括物种内部、物种之间和生态系统的多样性。”在漫长的生物进化过程中会产生一些新的物种，同时，随着生态环境条件的变化，也会使一些物种消失。所以说，生物多样性是在不断变化的。近百年来，由于人口的急剧增加和人类对资源的不合理开发，加之环境污染等原因，地球上的各种生物及其生态系统受到了极大的冲击，生物多样性也受到了很大的损害。有关学者估计，世界上每年至少有5万种生物物种灭绝，平均每天灭绝的物种达140个，估计到21世纪初，全世界野生生物的损失可达其总数的15%~30%。在中国，由于人口增长和经济发展的压力，对生物资源的不合理利用和破坏，生物多样性所遭受的损失也非常严重，大约已有200个物种已经灭绝;估计约有5000种植物在近年内已处于濒危状态，这些约占中国高等植物总数的20%;大约还有398种脊椎动物也处在濒危状态，约占中国脊椎动物总数的7.7%左右。因此，保护和拯救生物多样性以及这些生物赖以生存的生活条件，同样是摆在我们面前的重要任务。

(四)酸雨蔓延

酸雨是指大气降水中酸碱度(PH值)低于5.6的雨、雪或其他形式的降水。这是大气污染的一种表现。 酸雨对人类环境的影响是多方面的。酸雨降落到河流、湖泊中，会妨碍水中鱼、虾的成长，以致鱼虾减少或绝迹;酸雨还导致土壤酸化，破坏土壤的营养，使土壤贫瘠化，危害植物的生长，造成作物减产，危害森林的生长。此外，酸雨还腐蚀建筑材料，有关资料说明，近十几年来，酸雨地区的一些古迹特别是石刻、石雕或铜塑像的损坏超过以往百年以上，甚至千年以上。世界目前已有三大酸雨区。我国华南酸雨区是唯一尚未治理的。

(五)森林锐减

在今天的地球上，我们的绿色屏障——森林正以平均每年4000平方公里的速度消失。森林的减少使其涵养水源的功能受到破坏，造成了物种的减少和水土流失，对二氧化碳的吸收减少进而又加剧了温室效应。

(六)土地荒漠化

全球陆地面积占60%，其中沙漠和沙漠化面积29%。每年有600万公顷的土地变成沙漠。经济损失每年423亿美元。全球共有干旱、半干旱土地50亿公顷，其中33亿遭到荒漠化威胁。致使每年有600万公顷的农田、900万公顷的牧区失去生产力。人类文明的摇篮底格里斯河、幼发拉底河流域，已由沃土变成荒漠。中国的黄河流域，水土流失亦十分严重。

(七)大气污染

大气污染的主要因子为悬浮颗粒物、一氧化碳、臭氧、二氧化碳、氮氧化物、铅等。大气污染导致每年有30-70万人因烟尘污染提前死亡，2500万的儿童患慢性喉炎，400-700万的农村妇女儿童受害。

(八)水污染

水是我们日常最需要，也上接触最多的物质之一，然而就是水如今也成了危险品。

(九)海洋污染

人类活动使近海区的氮和磷增加50%-200%;过量营养物导致沿海藻类大量生长;波罗的海、北海、黑海、东中国海(东海)等出现赤潮。海洋污染导致赤潮频繁发生，破坏了红树林、珊瑚礁、海草，使近海鱼虾锐减，渔业损失惨重。

(十)危险性废物越境转移

危险性废物是指除放射性废物以外，具有化学活性或毒性、爆炸性、腐蚀性和其他对人类生存环境存在有害特性的废物。美国在资源保护与回收法中规定，所谓危险废物是指一种固体废物和几种固体的混合物，因其数量和浓度较高，可能造成或导致人类死亡，或引起严重的难以治愈疾病或致残的废物。

As in modern times of birth control being the basic policy of China,core families made of 3 people in which the parents were born after 1980 have a heavy burden of lives.That is to say,they have parents,father-in-law and mother-in-law,grand parents to care and a child to bring up which means two ones have to care 6 olders and bring up one child.It is such a big burden for a family two of whom are workers, when they have to pay for the housing loan , work and care for the olders.Especilly for those who get married not long ,whose olders coming from countries and having no insurance, the burden is more heavy.

In the tranditional culture of China, married conditions of men are different from women.Generally,men should collect enough money and give a wedding feast.This has accomplished an actuality ,if you have a girl baby,you just have to bring her up,and if you have a boy baby,you have to prepare rather many lots of money which you will have earned all your life to pay for your son’ house and his wedding,besides bringing him up.A jok has described the state lively , your boy baby is called a bank of economic construction you have to construct,while your girl baby is called China Merchants Bank on which you needn’t care too much ,and then someone will invest.As a result ,even if it is allowed to have a second child,families who have had a son would not be willing to have a second one.

Most ones born in 1980s(80s) are singletons which generation had received so much hope and love from their parents.Many coming from rich family are poor in living themselves,and not ready to bear hardships,so that pregnant women in them prefer caesarean birth when they deliver,so as to advoid the serious pain,although it had been proved better in science to bear naturally.The 80s parents even don’t want to pay their attention to the babies who will be taking care of by their grandparents.These mathers don’t want to suffer the pregnant process ,and will be still at the front of the pain,even if they woule like to have second ones.

For the young couples whose ideas are traditional,being like to own a big family,they do like have a second baby,but they can only hang back under the pressure of the cruel reality .For the nation,if it demand contradictions between ageing and low fertility relieved,it should entirely relieve the control of having a second single baby,which will rise the ratio of population steadily.The more important is to have most people share the gain of Reform and Openness,to solve the problem of housing loan of people,turning the commercial residential building into welfare building,to improve and perfect the service system of the society,to improve the medical security ,to narrow the gap between the wealthy and poor,to raise the pay of people.Then, the government needn’t to encourage people to do anything,and they would to have more babies all themselves.

For individual ,if you want a second baby and you are rich ,while your parents have old-age pension and could help bring up baby for you,you may as well have another one.

But if you are in pressure of living,while you parents have no retired pension and are in poor health,you’d better concentrate all your energies on your only baby ,and pay no attention to matter of the second baby ,in which it is the best choice for either you or your baby.

更多热门文章：

It is universally acknowledged that Tianjin is a modern city with a long history in china. Meanwhiletianjin is my hometown .Let me introduce Tianjin in nowdays

If you have ever been to tianjin the clean street and friendly people should made a deeply impression for you

Tianjin is a pluralism city . There are many special construct whose style were western style in Five Main Street. The Sea River is Mother-river in Tianjin. It is so beautiful that hundreds of people will work along the bank until midnight .If you want to go shopping you can go Binjiang Street or Guo Lou Street in these placeYou can buy anything what you like and feel the liviest sense in the world

TianjinMy hometown! You are my most beautiful city !

[城市人口英语作文

The pictures symbolically illustrate pollution is becoming increasingly serious around the globe. In the first cartoon， a man is scorching the earth on a chimney. In the second one， a famous ancient Chinese poet， Wang Bo is astonished by the heavy smoke poured by chimneys into the air and dirty river polluted by a factory. We are informed that “the autumn river is the same color with the sky”。

The drawer is sending a message about the significance of the need for everyone to fight against the danger of environmental pollution. There is no denying that the industry is indications of civilization， proGREss and development. Unfortunately， as industry develops， so will the number of factories， and the amount of industry pollutants. We are so development-oriented that we almost can sacrifice our blue sky and pure water in order to obtain a little material gain.

As a consequence， it is imperative for us to take drastic actions. On the one hand， the factories should be equipped with devices which can dispose of waste gas and water so as to prevent them from polluting our planet. On the other hand， there should be an increasingly loud voice from the public for firm actions against poisonous gas sent off and unhealthy water polluted by factories.

“盼望着，盼望着，东风来了，春天的脚步近了……” 是地球母亲，给我们带来了一个又一个美丽的春天。4月22日，当第37个“世界地球日”踏着春天的舞步来到我们身边的时候，我们不能不想一想：我们应该如何善待地球母亲，应该怎样珍惜地球母亲赐予我们的万里春光。 善待地球——珍惜资源，持续发展，是这个春天的主旋律。 但是，当前在我国，无论土地资源还是矿产资源，其保护、利用和永续利用的形势，都不容我们乐观。我们不得不问一问：地球的春天，是永远的吗? 尽管我们实行的是世界上最严格的土地管理制度，可在一些地方，乱占乱用农地和基本农田的事，还时不时地发生;我们大大小小的城市，由钢筋混凝土铺就的“大饼”，仍在一个劲儿地向四面八方扩张，吞噬着周围的万顷粮田…… 尽管矿产资源供给已经成了经济快速发展的制约瓶颈，可在一些地方，以浪费和破坏资源为标志的无证小矿山，仍在不停地乱采滥挖;即使在大矿山，“吃一半扔一半”的粗放开采方式也还在继续;乱堆乱放的尾矿，不但使本来可以利用的矿产资源惨遭抛弃，还可能在雨季形成泥石流，变为摧毁田地、庄稼和百姓生命财产的杀手;矿山采空区的地面塌陷和地裂缝，不但使农民失去了赖以生存的土地资源，也威胁着他们的居住安全;我们本是世界上最缺水的国家，可生产和生活用水还在被随意地挥霍着，珍贵的地下水被过量开采或者污染着;我们的能源已经十分短缺了，可雨后春笋般新建住房的粗放供暖，仍在浪费着油和煤炭资源…… 在土地、矿产资源供求全面紧张的今天，我们必须改变国土资源利用粗放、效率低下、浪费严重的现状。党中央和国务院高度重视国土资源节约集约利用，要求我们在战略机遇与矛盾凸显并存的关键时期，有高度的历史责任感、强烈的忧患意识和广阔的世界眼光，准确把握我国发展的阶段性特征，立足科学发展，着力自主创新，加快转变经济增长方式，把节约资源作为基本国策，发展循环经济，保护生态环境，加快建设资源节约型、环境友好型社会，促进经济发展与人口、资源、环境相协调。 为了建设节约型社会，“十一五”期间国家立下了几个必须达到的约束性硬指标：耕地保有量保持1.2亿公顷，单位国内生产总值能源消耗降低20%左右，单位工业增加值用水量降低30%，农业灌溉用水有效利用系数提高到0.5，工业固体废物综合利用率提高到60%(预期性)。

现在，各级政府和企业正在为实现这些目标努力，我们每一个公民都要为实现这些目标努力。资源短缺、能源危机就在我们身边，“电荒”、“油荒”、“煤荒”、“水荒”等等，正无时不刻在困扰着我们。珍惜资源靠你我他。只有全社会共同努力，才能使我们摆脱快速发展中的资源困境，走向资源节约、环境友好的社会。 珍惜资源，保护资源，节约资源，人人有责。让我们从现在做起，从我做起，从点点滴滴做起，珍惜地球母亲赐予我们的一切自然资源，使我们的家园年年春光灿烂……

As is apparently revealed in the pie charts above, forty-eight percent of people surveyed have never heard of the International No Motor Vehicle Day while fifty-seven percent are willing to give up driving on such a day. What is betrayed in the pie charts is most thought-provoking.

The implied meaning of the pie charts is both disappointing and exciting. On the one hand, much necessary work still needs to be done with respect to environmental protection. The public ignorance of relevant environmental protection results from inadequate and limited popularity of environmental protection knowledge by relevant government departments at different levels. Since environmental protection is an international issue, we must constantly introduce the advanced and practical practice in other countries to our general public. Only in this way can we promote environmental protection in China. On the other hand, the enhancement of the public awareness of environmental protection is a welcome development. Over the past years, as people’s living standard improves, people attach more importance to the quality of their life. They have a better understanding of the relationship between environment and their daily life. As a result, they are more interested in following positive international models. In sum, we have got a mixed feeling toward the very fact revealed in the pie charts.

In my view, necessary measures should be immediately taken to ensure a nice environment. First of all, government departments at all levels must play a more active role in popularizing international experience and practice of environmental protection. What’s more, the general public should be encouraged to participate more actively in environmental protection. Only in this way can we live in a healthy and harmonious environment.

[英语作文：环保问题

题目预测：

1. 我国人口老龄化现象日趋明显

2. 人口老龄化带来的问题

3. 如何妥善解决人口老龄化问题

参考范文：Aging of the Population

Population officials and demographers have much to worry about China’s increasingly aging population. It is estimated that the proportion of people aged 60 or older in China will rise to 11.8 percent in 2020. By the middle of this century, people aged beyond 60 will take up 27.4 percent of the total population — that means one out of every four people will be senior!

The aging population poses a serious challenge to families and the society. On the one hand, with families becoming smaller and living pace escalating, it is even graver for families to care for aged members adequately. On the other hand, aging causes a relative decline in working force. Consequently, the productivity of the whole society will be affected to some extent.

The rapidity of the population’s aging has made it more urgent for the adoption of countermeasures. There is no doubt that the key is to build a solid economic foundation. Meanwhile, importance should be attached to overall social progress by changing the backward situation in social security, welfare and service. What’s more, family care and community-based services should also be encouraged.

参考译文：

人口官员和人口统计学家担心中国日益老化的人口。据估计,在中国60岁以上的人口比例将上升到2020年的11.8%。到本世纪中叶,年龄超过60岁的人将占总人口的27.4%,这意味着每四个人中就有一个将高级!

老年人对家庭和社会造成严重的挑战。一方面,随着家庭变得较小,生活节奏不断升级,甚至严重的家庭照顾年龄成员充分。另一方面,老化导致工作相对衰落的力量。因此,整个社会的生产力将受到影响在某种程度上。

人口老龄化的速度使采取应对措施变得更为紧迫。毫无疑问,解决问题的关键是建立稳固的经济基础。与此同时,应该重视整体的社会进步,改变落后的状况在社会保障、福利和服务。除此之外,应该鼓励家庭照料和社区服务。

It has been such a long time for Chinese people to carry out the family plan, so most families only have one child. But now the government has loosen the one-child policy, more and more families have the right to raise the second child. In my opinion, having the second child has many advantages.

中国人实行计划生育已经有很长一段时间了，因此大部分家庭只有一个孩子。但是如今政府放松了一胎政策，越来越多的家庭有权利养育第二个孩子。在我看来，拥有第二个孩子很多好处。

First, it is good for the only child to have a sister or brother, so that the child can learn to share things. The parents are easily to focus their all attention to the only child, they want to give all the things he wants. But in the long run, they don’t realize they have spoiled their child to be an emperor. Selfishness can be found on the only child, if he has a partner, then he will realize the need to share things with others. What’s more, the parents can distract their attention, so they won’t spoil their kids.

第一，对于独生子女来说，有个兄弟姐妹是好的，这样孩子就能学会分享东西。父母很容易会把他们的注意力集中在独生子女身上，他们想要给予孩子所要的一切。但是长期下去，他们没有意识到已经把孩子宠溺成了一个皇帝。独生子女很容易自私，如何他有一个伙伴，就会和别人分享东西的需要。而且，父母也会分散他们的注意力，这样就不会宠溺孩子。

Second, since in Chinese tradition the old people would not like to spend their later life in the nursing house, two children can share the burden of taking care of the parents and support them when they grow old. Those only children would be exhausted then while they have their own family to take care.

第二，由于在中国的传统里老年人们不愿意在养老院安度晚年，两个孩子也能分担一下照顾和赡养年老父母的压力。而那些独生子女们还要照顾自己的家庭，会力不从心。

Third, the more kids in the family, the happier the family will be. Watching the children play and fight is a kind of fun for the parents. The lively phenomenon makes people feel happy.

第三，家中越多的孩子，家庭就会更加的幸福。看着孩子们玩耍和吵架，对父母来说也是一种乐趣。热闹的环境让人感到开心。