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英文读写literature review范文

英文读写literature review范文
英文读写literature review范文

The influence of mining exploitation on environment and the solution of the disposal of solid waste residue By the year of 2012, China has 8557 State-owned mining enterprises and over 200 thousands individually owned enterprises. The area of destroyed land in mining area adds up to 29 thousand km^2 and grows at the rate of 2% each year (Liao L-P, Gao.H and Yu X-J, 2012). The mining industry has scored tremendous achievements, but meanwhile it threatens the environment. Some individually owned enterprises lack the awareness of environmental protection and take no preventive measure to lower their cost. Furthermore, out-of-date equipment and poor technology cause huge waste in production, which cause serious environmental pollution.

The destruction on land resources

Strip mining and the piling of tailings and waste residue occupies and destroys large land. In china, the waste-occupied land in mining area adds up to 59 thousand km^2 and the resulting deforestation area adds up to 11 thousand km^2 (Ma X-Q, Huang B-L, 2010). Strip mining can result in the destruction of land surface and Land Subsidence and accelerate the water and soil losses. According to official statistics, by the year of 2011, in the mining area of western China, the Soil erosion area annually increases 20 km^2.

The increase of the risk of geological disaster

The construction of mining engineering can significantly change the landform in mining area. Digging to a certain depth will threaten the stability of hillside and easily induce some geological disasters, such as landslip, collapse, debris flow, surface subsidence and even earthquake (Cao F-G, 2007). For example, 4 tons of water will be drained off when 1 ton of coal is mined. The loss of groundwater exerts huge pressure on earthcrust (Gibowicz, 1999). In China, there are nearly 2000 sinkholes and the collapse area adds up to 1150 km^2. Almost 40 of the mining cities in China have Cave-in accident, which threatens the life of mine operators and cause heavy property loss, about 120 million dollars on average each year.

The influence on water resource

Deep mining engineering will influence the surface water resources and groundwater resources. Excessive groundwater extraction can cause the drop of water level, some problems on water supply and land subsidence (Auclair AD, 2008). The quality surface water will decrease and the course of river might be changed. In some drought region,the drop of groundwater level can lead to the death of land vegetation (Becker M, 2005). More seriously, huge amounts of industrial water are required to

support over exploitation in mineral-abundant region and most of the water is drawn from agricultural water, which interferes the agricultural production (Shi X-H, 2009). The loss of biodiversity

Soil degradation, environmental pollution, the emission of waste and vegetation clearing are fatal to the biodiversity in mining area. After the loss of biodiversity, some high-resistant species can still inhabit the abandoned land in mining area, but because of the barren soil and the deficiency of microorganism activity, the recovery of ecosystem usually need 10-50 years (Xiao H-L, 2011). The loss of biodiversity in some damaged ecosystems is even irreversible.

The solution of the disposal of solid waste residue

Solid waste residue is the biggest polluter in mining area and the disposal of it still plagues the government and mining enterprises, so it deserves a separate discussion. The heavy metal ion in solid waste is the most harmful substance. Once contacting water source, these ions will dissolve, making the water corrosive and toxic, and it is very difficult to extract them from the water (FAO, 2004).

High technology offers two new methods to solve this problem. One is microorganism technology. The removal of heavy metal ions by microorganism is a new applicable technique. Various types of biomass, including bacteria, fungi, yeast and algae have been evaluated for their heavy metal uptake properties. The most prominent features of biosorption are the use of low cost biomass material and the high efficiency of some biomass to uptake heavy metals in very low concentration (Jose T.Matheickal, 2001).

Another one is new corrosion-resisting clay. This kind of clay is toughened, innocuous and environmental-friendly. In the process of disposing the waste residue, the clay will be first made into mud. The clay mud covers the surface of waste residue and after it dries out, the clay will become a waterproof layer and can resist the corrosion of any substance in the soil. Then the waste residue can be sequestered underground safely (Moore, 2005).

However, Zhu.J.J has pointed out the possible resistance of the implementation of these methods. There is a lack of related Professional Staff. Disposing the waste residue in high-tech methods will increase the cost of enterprises (Zhu J-J, 2009). What’s more, some individually-owned enterprises are even ignorant of the importance of environmental protection, so they may be completely uninterested in these handling methods .

Summary and Tips

Along with the enhancing of the people's awareness of the environment,the environmental management has become indispensable in the development of mining industry. Some relative rules, regulations, and standards show be put on to establish a more rational Working mechanism. If the development condition of the mining industry improves, the mining enterprises will no longer pursue profit at the cost of environment.

References

Auclair AD. (2008). A case stury of forest decline in western Canada and the adjacent United States. Water, Air and Soil pollution 53(2): 23-31.

Becker M. (2005). Silver fir decline in the V osges mountains: Role of climate and natural culture. Water, Air and Soil Pollution 48: 77-80

Cao F-G. (2007). Hunan Geology Science & Technology 21(2): 29-31(in Chinese) FAO. (2004). State of the World’s Chemical Industry, 2009. Journal of Applied Chemistry, 15(10): 195-196

Gibowicz. (1999). Magnitude and energy of subterranean shocks in Upper Silesia.

The Earth's Interior Structure 32(7): 14-15

Jose T.Matheickal. (2001). Removal of Heavy Metal Ion from Wastewater by Using Biosorbents from Marine Algae. Chinese Journal of Chemistry 9(2): 133-136 Liao L-P, Gao H, Yu X-J (2012). Chinese Journal of Applied Ecology 11(2): 61-64 (in Chinese)

Ma X-Q, Huang B-L. (2010). A study on self-poisoning effects of Chinese fir plantation. Journal of Nanjing Forestry University 24(1): 12-16

Moore.(2005). Changes in structure and composition of modern Industrial raw materials.Modern Industry Management 208(1/3): 223-225

Shi X-H. (2009). Rain and its influence on environmental ecosystem. Journal of Inner Mongolia Agricultural University 21(1): 109-114(in Chinese)

Xiao H-L. (2011). Increased soil temperature and forest decline. Tropical Subtropical Soil Science 4(4): 246-249(in Chinese)

Zhu J-J. (2009). A review on fundamental studies of secondary forest management.

Chinese Journal of Applied Ecology 13(12): 168-169

英文summary写作范例

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工作面试英文自我介绍

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英文面试常用语

Mature, dynamic and honest.思想成熟、精明能干、为人诚实。 Excellent ability of systematical management.有极强的系统管理能力。 Ability to work independent1y, mature and resourceful. 能够独立工作、思想成熟、应变能力强。 A person with ability plus flexibility should apply. 需要有能力及适应力强的人。 A stable personality and high sense of responsibility are desirable. 个性稳重、具高度责任感。 Work well with a multi-cultural and diverse work force. 能够在不同文化和工作人 员的背景下出色地工作。 Bright,aggressive applicants. 反应快、有进取心的应聘者。 Ambitious attitude essential. 有雄心壮志。 Initiative, independent and good communication skill. 积极主动、独立工作能力强,并有良好的交际技能。 Willing to work under pressure with leardership quality. 愿意在压力下工作,并具领导素质。 Willing to assume responsibilities. 应聘者须勇于挑重担。 Mature, self-motivated and strong interpersonal skills. 思想成熟、上进心强,并极具丰富的人际关系技巧。 Energetic, fashion-minded person. 精力旺盛、思想新潮。 With a pleasant mature attitude. 开朗成熟。 Strong determination to succeed.有获得成功的坚定决心。 Strong leadership skills. 有极强的领导艺术。 Ability to work well with others. 能够同他人一道很好地工作。 Highly-motivated and reliable person with excellent health and pleasant personality. 上进心强又可靠者,并且身体健康、性格开朗。 The ability to initiate and operate independently. 有创业能力,并能独立地从业。Strong leadership skill while possessing a great team spirit. 有很高的领导艺术和很强的集体精神。 Be highly organized and effecient. 工作很有条理,办事效率高。 Willing to learn and progress. 肯学习进取。 Good presentation skills. 有良好的表达能力。

summary 范文

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面试英文自我介绍范文 面试英文自我介绍范文 【英语面试常用句型】: (1) 开场白 1. Let me introduce myself. / Let me do some introduction. 让我来介绍一 下自己。 2. Which aspect do you want to know about me? 您想知道我哪方面的情况? 3. What do you want to know about myself? 您想知道我哪方面的情况? 4. Good morning/afternoon/evening, my name is ...... . It is really a great honor to have this opportunity/chance to introduce myself. I would like to answer whatever you may raise, and I hope I can make a good performance today. 上午好/下午好/晚上好!我的名字叫......。今天有机会进行自我介绍深感荣幸。 我乐意回答你们所提出来的任何问题。我希望我今天能表现的非常出色。 (2) 关于职位、工作 1. I noticed that you advertised a job in this morning's paper. 我看到你们在今早的报纸上刊登的招聘广告。 2. I'm coming for your advertisement for .... 我是来应聘你们广告上的......职位的。 3. I have applied for the position of .... 我申请了贵公司的......职位。 4. I haven't done anything like that before. 我以前没有做过这种工作。 5. I think I'm quite fit for assistant's job. 我觉得我很适合做助理的工作。 6. I used to work as a sale's manager. 我以前做销售经理。 7. I'm quite familiar with editing. 我做过很多编辑工作。 8. I want a job with a vacation every year. 我想找个每年都能度假的工作。 9. I was thinking of a job in a school. 我打算到学校找份工作。 10. I worked in the accounting section of a manufacturer of electrical products. 我曾在电子产品制造商的会计组工作。 11. I have been for over five years in teh employ of an exporting company. 本人曾经前后五年被受雇于出口贸易公司。 12. I have been in the business for the last ten years, and worked as the superintendent in the personnel department. 本人在过去十年在商界担任人事部主任迄今。 13. I have had five years' experience with a company as a salesman. 本 人曾在某一公司担任推销员,前后有五年之久。 14. For the past three years, I have been in the office of the Brothers Trading Co., where I have been ad still am an accountant. 本人曾经在兄弟贸 易公司服务三年,担任会计工作,现仍在职中。 15. I am twenty years of age, and have been employed for the last two years by the Green Trees Co., in teh general clerical work of the office. 我今年20岁,曾于绿林公司服务两年,担任一般文员工作。 16. I am 25 years of age, and have had two years' experience in my present post, which I am leaving to better myself. 我今年25岁,已在目前的职位工作 两年,兹为寻找更上一层楼,准备离开此职位。

英文Summary写作方法、范例及常用句式

摘要是对一篇文章的主题思想的简单陈述。它用最简洁的语言概括了原文的主题。写摘要主要包括三个步骤:(1)阅读;(2)写作;(3)修改成文。 第一步:阅读 A.认真阅读给定的原文材料。如果一遍不能理解,就多读两遍。阅读次数越多,你对原文的理解就越深刻。 B.给摘要起一个标题。用那些能概括文章主题思想的单词、短语或短句子作为标题。也可以采用文中的主题句作为标题。主题句往往出现在文章的开头或结尾。一个好标题有助于确定文章的中心思想。C.现在,就该决定原文中哪些部分重要,哪些部分次重要了。对重要部分的主要观点进行概括。 D.简要地记下主要观点——主题、标题、细节等你认为对概括摘要重要的东西。 第二步:动手写作 A. 摘要应该只有原文的三分之一或四分之一长。因此首先数一下原文的字数,然后除以三,得到一个数字。摘要的字数可以少于这个数字,但是千万不能超过这个数字。 B. 摘要应全部用自己的话完成。不要引用原文的句子。 C. 应该遵循原文的逻辑顺序。这样你就不必重新组织观点、事实。 D. 摘要必须全面、清晰地表明原文所载的信息,以便你的读者不需翻阅原文就可以完全掌握材料的原意。 1 / 19

E. 写摘要时可以采用下列几种小技巧: 1) 删除细节。只保留主要观点。 2) 选择一至两个例子。原文中可能包括5个或更多的例子,你只需从中筛选一至二个例子。 3) 把长段的描述变成短小、简单的句子。如果材料中描述某人或某事用了十个句子,那么你只要把它们变成一两句即可。 4) 避免重复。在原文中,为了强调某个主题,可能会重复论证说明。但是这在摘要中是不能使用的。应该删除那些突出强调的重述句。 5) 压缩长的句子。如下列两例: “His courage in battle might without exaggeration be called lion-like.” 可以概括为:”He was very brave in battle.” “He was hard up for money and was being pressed by his creditor.” 可以概括为:“He was in financial difficulties.” 6) 你还可以使用词组代替整句或者从句。请看下面的例子:“Beautiful mountains like Mount Tai, Lushan Mountain, and Mount Huang, were visited by only a few people in the past. Today, better wages, holidays with pay, new hotels on these mountains, and better train and bus services, have brought them within reach of many who never thought of visiting them ten years ago.” 2 / 19

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