Many people are active in fighting against unfair Many people are active in fighting against unfair Many people are active in fighting against unfair Many people are active in fighting against unfair treatment to colored people， women ， animals and so treatment to colored people， women ， animals and so treatment to colored people， women ， animals and so treatment to colored people， women ， animals and so Right now I am talking about fighting for respect to our Right now I am talking about fighting for respect to our Right now I am talking about fighting for respect to our Right now I am talking about fighting for respect to our Though the environment doesn't have a mouth Though the environment doesn't have a mouth Though the environment doesn't have a mouth Though the environment doesn't have a mouth to deprecate what humans have doto deprecate what humans have doto deprecate what humans have doto deprecate what humans have done to her， she retaliates ne to her， she retaliates ne to her， she retaliates ne to her， she retaliates through In the early years the Chinese cut down through In the early years the Chinese cut down through In the early years the Chinese cut down through In the early years the Chinese cut down large quantities of trees， at the source of the yellow large quantities of trees， at the source of the yellow large quantities of trees， at the source of the yellow large quantities of trees， at the source of the yellow river， which led to the disappearance of big forests and river， which led to the disappearance of big forests and river， which led to the disappearance of big forests and river， which led to the disappearance of big forests and terrible As a result， the Huangtu plateau which terrible As a result， the Huangtu plateau which terrible As a result， the Huangtu plateau which terrible As a result， the Huangtu plateau which was onwas onwas onwas once covered with grass and forests was turned into ce covered with grass and forests was turned into ce covered with grass and forests was turned into ce covered with grass and forests was turned into barrens that supported fewer Another example was barrens that supported fewer Another example was barrens that supported fewer Another example was barrens that supported fewer Another example was in several developed Because many chemical in several developed Because many chemical in several developed Because many chemical in several developed Because many chemical factories discharged poisonous gas without filtering it， factories discharged poisonous gas without filtering it， factories discharged poisonous gas without filtering it， factories discharged poisonous gas without filtering it， cities were covered with so much poisocities were covered with so much poisocities were covered with so much poisocities were covered with so much poisonous gas that people nous gas that people nous gas that people nous gas that people were killed by the air they breathed What horrible were killed by the air they breathed What horrible were killed by the air they breathed What horrible were killed by the air they breathed What horrible scene!What we are suffering is only a small part of what scene!What we are suffering is only a small part of what scene!What we are suffering is only a small part of what scene!What we are suffering is only a small part of what the nature once If we don't take action to show the nature once If we don't take action to show the nature once If we don't take action to show the nature once If we don't take action to show respect to the environment， we will have to face an respect to the environment， we will have to face an respect to the environment， we will have to face an respect to the environment， we will have to face an increasingly increasingly increasingly increasingly awful awful awful awful
It's Our Duty To Protect Our Environment保护环境是我们的义务It's our duty to protect our Where do we live? The The earth is the only one place we live So you know how important the environment 保护环境是我们的义务。我们居住在哪里？地球。地球是我们唯一居住的地方，所以可想而知环境对于我们的重要性。But now， some people are harming the environment， like cutting down trees， drawing pictures on public walls， littering onto the It's terrible if we still do 但是现在，很多人都在破坏环境，比如砍伐树木，在公共墙壁上乱涂乱画，随地扔垃圾。如果我们继续这样下去是非常可怕的。Now， it's time for all the people in the society to protect the It's our It needs each of us to make a contribution to improving the We should make our environment more and more 现在，是人们保护环境的时候了，这是我们的义务，我们都要为改善环境做贡献，我们应该努力让我们的环境变得更好。
Kept Our World Clear and Beatiful ！(保持我们的世界清洁美丽) Today following with economy ， Science and technology‘s devolop ， we human are destorying the （今天，随着经济科技的发展，我们人类在不停的破坏环境） But we must know we have only a world ，if it's broken we haven't any places to So we can't leave it along，we should do something to stop （但是我们应该知道我们只有一个地球，如果它被摧毁了，我们就没有地方住了，所以我们不能坐视不理，我们应该做点什么来阻止继续这种破坏） To make it ，we should do anything from ourselves ，such as not waste water or electic power （为了能成功，我们应该从我们自己做起，比如不浪费水电，等等） Besides it we should persuade people joining us as more as (除此之外我们应该尽可能的说服更多的人们加入我们) If every one can do this our world will be more beatiful and tomorrow is another （如果我们都能这么做，我们的世界会变得美丽，明天会更好） That's all let's do our best to make （这就是这篇文章，让我们尽力去做成他吧） 一个字一个字的打上去的，记得采纳啊
土木工程的英文是Civil Engineering ，直译是民用工程，它是建造各种工程的统称。它既指建设的对象，即建造在地上，地下，水中的工程设施，也指应用的材料设备和进行的勘测，设计施工，保养，维修等专业技术。土木工程随着人类社会的进步而发展，至今已经演变成为大型综合性的学科，它已经出许多分支，如：建筑工程，铁路工程，道路工程，桥梁工程，特种工程结构，给水排水工程，港口工程，水利工程，环境工程等学科。土木工程共有六个专业：建筑学，城市规划，土木工程，建筑环境与设备工程，给水排水工程和道路桥梁工程。土木工程作为一个重要的基础学科，有其重要的属性：综合性，社会性，实践性，统一性。土木工程为国民经济的发展和人民生活的改善提供了重要的物质技术基础，对众多产业的振兴发挥了促进作用，工程建设是形成固定资产的基本生产过程，因此，建筑业和房地产成为许多国家和地区的经济支柱之一。古代的土木工程有很长的时间跨度，大致从公元前500年新石器时代出现原始的土木工程活动到16世纪末意大利的文艺复兴，导致土木工程走上迅速发展的道路为止，前后经历了两千多年。在这段时间内，由于科学理论发展及其缓慢，土木工程也没有突破习惯的发展。从17世纪中页开始到20 世纪40年代第二次世界大战结束为止的300年间，国外的建筑取得了长足的进步。土木工程进入了定量分析阶段。一些理论的发展，新材料的出现，新工具的发明，都使土木工程科学日渐完善和成熟。到了近代，二战结束之后，许多国家经济起飞，现代科学日益进步，从而为进一步发展提供了强大的动力和物质基础。人们生活水平的不断提高，必然要求越来越舒适的居住环境，在这种情况下，建筑的发展直接推动了土木工程的发展。总的来说土木工程是一门古老的学科，它已经取得了巨大的成就，未来的土木工程将在人们的生活中占据更重要的地位。地球环境的日益恶化，人口的不断增加，人们为了争取生存，为了争取更舒适的生存环境，必将更加重视土木工程。在不久的将来，一些重大项目将会陆续兴建，插入云霄的摩天大楼，横跨大样的桥梁，更加方便的交通将不是梦想。科技的发展，以及地球不断恶化的环境必将促使土木工程向太空和海洋发展，为人类提供更广阔的生存空间。近年来，工程材料主要是钢筋，混凝土，木材和砖材，在未来，传统材料将得到改观，一些全新的更加适合建筑的材料将问世，尤其是化学合成材料将推动建筑走向更高点。同时，设计方法的精确化，设计工作的自动化，信息和智能话技术的全面引入，将会是人们有一个更加舒适的居住环境。一句话，理论的发展，新材料的出现，计算机的应用，高新技术的引入等都将使土木工程有一个新的飞跃English is the Civil Engineering Civil Engineering， civil engineering is literally， it is the construction of the project It means building objects that the construction on the ground， underground， water works facilities， equipment and materials to use in surveying， design construction， maintenance， repair and other professional Civil Engineering with the progress of the human society， has been transformed into large integrated disciplines， it has a number of branches， such as : construction， rail projects， road projects， bridge projects， special project structure， water drainage works， the port project， water， environmental engineering A total of six professional Civil Engineering : architecture， urban planning， civil engineering， construction and environmental engineering equipment， water drainage works and road bridge Civil Engineering as an important foundation subjects， its important attribute : an integrated， social， practicality， Civil Engineering for the development of the national economy and improve the living standards of the people provided important material and technological foundation for the revitalization of many industries played a catalytic role in the construction of fixed assets is a basic production process， the construction and real estate in many countries and regions become a pillar of the economyAncient Civil Engineering has a long time span， roughly 500 years before Christ from the original date in civil engineering activities to the 16 century Italian Renaissance， resulting in the rapid development of the Civil Engineering on the road today， and has experienced more than 2，000 During this period， due to the development of scientific theories and slow， there is no breakthrough in civil engineering Century from 17 pages to 40 years in the 20th century end of the Second World War 300 years， foreign construction made great Civil Engineering has entered a phase of quantitative Some theoretical development， the emergence of new materials， new tools of invention， the Civil Engineering Science is perfection and In modern times， after the end of World War II， many countries economic takeoff， the increasing advances of modern science， so as to provide a powerful impetus to further development and material People's living conditions continue to improve， more and more comfortable living environment for the inevitable in the circumstances， the construction of development directly to the Civil Engineering
