19870629侠女
1.英语科学小知识 1. bat an eye (show surprise, fear, or interest) 眨一下眼睛（表示惊讶、恐惧等）该成语通常用于否定句中，表示不露声色.例：Tom told his story without batting an eye, although not a world of it was true.虽然没有一句话是真的，汤姆编造故事却面不改色.2. be all fingers and thumbs做事笨手笨脚例：He could not undo the string of the parcel ---- she was all fingers and thumbs.他怎么也解不开包袱上的绳子 ---- 真是笨手笨脚. 3. be born with a silver spoon in one's mouth (born with inherited privilege or wealth) 门第高贵；出生富豪[注] 银具是富裕人家身份的象征之一，生在富贵人家的孩子多用银匙 （silver spoon） 喂食.例：When does she know about hardship ---- she was born with a silver spoon in her mouth.她根本就不知道什么叫艰难 ---- 他出生在富贵人家.4. be in sth. up to one's neck (be very much and very seriously involved in) 深陷于.中例：She said she knew nothing about the robbery, but I'm sure she's in it up to her neck.她说她对这起抢劫案一无所知，不过我敢肯定她深深卷入其中.5. bite the hand that feeds one (be very ungrateful) 忘恩负义；以怨报德例：She felt that her protégé had bitten the hand that fed him by making unkind remarks about her in public.她觉得她的被保护人在公开场合讲有损她的话是忘恩负义.6. bite off *** 's nose (scold *** . severely; disagree with *** . in a bad manner) 气势汹汹地回答某人；声色俱厉地训斥某人[注] 也作snap off *** 's head.该成语最早出现于16世纪.到了18世纪，有人用动词 snap 替换该成语中的 bite 一词.例：She bites off his nose on the faintest provocation.不管有事无事，她动不动就声色俱厉地训斥他.7. break the back of sth. (plete the heaviest or most difficult part of sth. hurt the most import part) 门第高贵；出生富豪[注] 银具是富裕人家身份的象征之一，生在富贵人家的孩子多用银匙 （silver spoon） 喂食.同义语有be born in （或to） the pruple; be radled in purple.例：Now that you've broken the back of the job, have a rest.你既然已经完成了这项工作的主要部分，那就休息一下吧.8. bury one's head in the sand (deliberately ignore sth. that is obvious but unpleasant) 逃避现实；拒绝承认现实[注] 鸵鸟遇到危险时，总是把头埋在沙里，自己看不见敌人就认为敌人也看不见自己，由此产生这一成语.例：He had suspected for some months that his son was taking drugs, but he had buried his head in the sand and refused to admit it, even to himself.几个月来，他一直怀疑自己的儿子在吸毒，但他却采取鸵鸟政策，拒绝承认现实. 9. carry a chip on one's shoulder (have rather an aggressive manner, as if always expecting to be insulted, ill-treated) 以挑衅的态度出现；像要跟人家打架似的[注] 19世纪中叶美国中西部的居民寻衅打架时，常把一块碎木片（chip）放在肩膀上，谁要与他打架就得先击落这块木片.例：He is very difficult to deal with ---- he's always carried a chip on his shoulder about his lack of education.他这个人很难对付----由于没能受到良好的教育，他整天都像要跟人家打架似的.10. chance one's arm (do sth. risky; take a risk) 冒险一试；碰碰运气[注] 该成语原出自拳击运动，后被裁缝吸收为行话；从1890年起，又被士兵们用来指“冒降级的险”例：The manager decided to chance his arms and try to write a book on economy.这个经理决定碰碰运气，试着写一本关于经济的书.。 2.科普知识的英语作文一百字 As we know, Air pllution is bad for our health.We have very serious air pollution around, became the main environment problems in our city.Air pollution has seriously affected our lives.In order to protect the air environment in the city, to protect our health,We must do the following.First of all,We can use clean fuel When we drive or take the bus.Of course,We can also ride a bicycle to replace them.Second,We have to plant more trees, let us more fresh air.Of course, there are many ways to protect environment. I believe, as long as we all work together,We'll have a clean their homes. 3.英语科普小知识,急 Ever since they were first put on the market in the early 1990s, gentically mondified (GM， 转基因) foods have been increasingly developed and marketed in many countries in the word,mainly on the basis of their promise to end the worldwide food crisis. But can GM technology solve world hunger problems? Even if it would ,is it the best solutiorr? Despite what it promiises,GM technology actually has not increased the production potential of any corp. In fact Studies show that the most crown GM croo. GM soybeans, has suffered reduced productivity. For instance, a report than *** ysed nearly two decades of research on mojor GM food crops shows that GM engineering has failed to significantly increase US crop production. Something else, however, has been on the rise, While GM seeds are expensive, GM panics tell farmers that they will make good profits by saving money on pesticides（杀虫剂）. On the contrary, US government data show that GM crops in the US have produced an overall increase in pesticide use pared to traditional crops. “ The promise was that you could use less chemicals and boost production. But her is true,” said Bill Christison, President of the US National Farm Coalition. At the same time, the authors of the book World Hunger: Twelve Myths argue that there actually is more than enough food in the world and that the hunger crisis is not caused by production, but by problems in food distribution and politics. These indeed deserve our efforts and money. Meanwhile, the rise in food prices results from the increased use of crops for fuel rather than food, according to a 2008 World Bank report. As a matter of fact ,scientists see better ways to feed the world. Another World Bank report concluded that GM crops have little to offer to the challenges of worldwide poverty and hunger, because better ways out are available, among which “green” farming is supposed to be the first choice.。 4.英语科普小知识,急 要想学好英语不止才有这几个方面，还要掌握一些重要的知识。 例如：英语中的“八大时态”。“八大时态”分别有：一般将来时，一般现在时，一般过去时，现在进行时，现在完成时，过去将来时，过去完成时和过去进行时。 当然英语的“八大时态”也很重要，它也是学好英语的最基本。以下是“八大时态”的简介。 一、一般时态 1、一般现在时 （1）一般现在时表示没有时限的持久存在的动作或状态或现阶段反复发生的动作或状态，常和副词 usually,often,always sometimes, regularly,near,occasionally,every year, every week 等连用。 （2）在由after,until,before,once,when,even if,in case,as long as,as soon as,the moment 以及 if,unless 等引导的时间状语从句或条件状语从句中，通常用一般现在时代替将来时。 （3）某些表示起始的动词，可用一般现在时表示按规定、计划或安排要发生的动作，这类动词有：be,go,e,start,depart,arrive,begin,leave 等。（4）在由why,what,where,whoever,who,that,as 等引导的从句中，也常用一般现在时代替将来时2.一般过去时 （1）表示过去某一特定时间所发生的、可完成的动作或状态，常与表示确切过去时间的词、短语或从句连用。 （2）表示过去习惯性动作。（注意与be used to doing短语的区别） 3.一般将来时 1）表示将来打算进行或期待发生的动作或状态。 2）几种替代形式： 1)be going to +v在口语中广泛使用，表示准备做或将发生的事情2)be to +v表示计划安排要做的事，具有“必要”的强制性意义。3)be about to +v表示即将发生的事情。 4)be due to +v表示预先确定了的事， 必定发生的事。5)be on the point/verge of +v – ing 强调即将发生的某种事态。 . 二、进行时态 1.现在进行时 （1）表示现在正在进行的动作，常与now,right now,at the mother,for the time being,for the present等连用。（2）表示现阶段经常发生的动作， 常与always,continually,forever,constantly等连用。 （3）表示根据计划或安排在最近要进行的事情。具有这种语法功能的动词仅限于过渡性动词。 即表示从一个状态或位置转移到另一个状态或位置上去的动词。常用的有：go,e,leave,start,arrive,return等。 （4）有些动词不能用进行时，这是一类表示“感觉，感情，存在，从属”等的动词。如：see,hear, *** ell,taste,feel, notice,look,appear，（表示感觉的词）；hate,love,fear,like,want,wish,prefer,refuse, forgive（表示感情的动词）；be,exist,remain,stay,obtain（表示存在状态的动词）；have,possess, own,contain,belong,consist of,form（表示占有与从属的动词）；understand,know,believe,think,doubt,forget,remember （表示思考理解的动词）。 但是如果它们词义改变，便也可用进行时态2. 过去进行时 过去进行时表示一个过去的动作发生时或发生后，另一个过去的动作正在进行，或表示过去反复的习惯，常与always,continually,constantly等动词连用。3. 将来进行时 将来进行时主要表示将来某一时刻正在进行的动作，或表示要在将来某一时刻开始，并继续下去的动作。 常用来表示礼貌的询问、请求等4. 完成进行时 （现在、过去、将来）完成进行时是（现在、过去、将来）完成时的强调形式，将放在完成时态部分讲述。 三、完成时态 完成时态通常表示已完成或从事的动作。 它可分为： 1. 现在完成时 （1）现在完成时用来表示对目前状况仍有影响的，刚刚完成的动作（常与yet,already,just连用），或者过去某一时刻发生的，持续到现在的情况（常与for,since连用）。（2）常与现在完成时连用的时间状语有：since, for, during, over等引导出的短语；副词already, yet, just, ever, now, before, often, lately, recently等；状语词组this week (morning, month, year), so far, up to now, many times, up to the present等 （3）完成时态可用在下列结构中：This (That, It) is (was) the first (second…) time +定语从句；This (That, It) is (was) the only (last) + n +定语从句；This (That, It) is (was) +形容词最高级+ n +定语从句。 如果主句的谓语动词是一般现在时，从句的谓语动词通常用现在完成时；如果主句谓语动词是一般过去时，从句谓语动词通常用过去完成时。2. 过去完成时 （1）表示过去某时间前已经发生的动作或情况，这个过去的时间可以用by,before等介词短语或一个时间状语从句来表示；或者表示一个动作在另一个过去动作之前已经完成。 （2）动词expect, hope, mean, intend, plan, suppose, wish, want, desire等用过去完成时，表示过去的希望、预期、意图或愿望等没有实现。例如： I had meant to take a good holiday this year, but I wasn't able to get away. 另外两种表示“过去想做而未做的事”的表达方式是： 1)was / were + to have done sth, (3)过去完成时常用于以下固定句型： 1)hardly, scarcely, barely + 过去完成时+ when + 过去时。 2)no sooner +过去完成时+ than +过去时。3)by (the end of ) +过去时间，主句中谓语动词用过去完成时。 3. 将来完成时 将来完成时表示在将来某一时刻将完成或在另一个未来的动作发生之前已经完成的动作；也可以用来表示一种猜测。常与将来完成时连用的时间状语有： by (the time / the end of 。 5.科普英语的内容 暗银河系的发现及其科学意义 In addition to conventional galaxies, the universe contains very dim galaxies that until recently went unnoticed by astronomers. Possibly as numerous as conventional galaxies, these galaxies have the same general shape and even the same approximate number of stars as a mon type of conventional galaxy, the spiral, but tend to be much larger. Because these galaxies 'mass is spread out over larger areas, they have far fewer stars per unit volume than do conventional galaxies. Apparently these low-surface-brightness galaxies, as they are called, take much longer than conventional galaxies to condense their primordial gas and convert it to stars—that is, they evolve much more slowly. These galaxies may constitute an answer to the long-standing puzzle of the missingbaryonic mass in the universe. Baryons—subatomic particles亚原子粒子 that are generally protons or neutrons—are the source of stellar, and therefore galactic, luminosity, and so their numbers can be estimated based on how luminous galaxies are. However, the amount of helium in the universe, as measured by spectroscopy光谱学， suggests that there are far more baryons in the universe than estimates based on galactic luminosity indicate. Astronomers have long speculated that the missing baryonic mass might eventuallybe discovered in intergalactic space星系际的空间 or as some large population of galaxies that are difficult to detect. -------------------------------另类海豹哺乳方式与众不同 Until recently, zoologists believed that all species of phocids (true seals), a pinnipped family, use a different maternal strategy than do otariids (fur seals andsea lions), another pinniped family. Mother otariids use a foraging strategy. They acquire moderate energy stores in the form of blubber before arriving at breeding sites and then fast for 5 to 11 days after birth. Throughout the rest of the lactation (milk production) period, which lasts from 4 months to 3 years depending on the species, mother otariids alternately forage at sea, where they replenish their fat stores, and nurse their young at breeding sites. Zoologists had assumed that females of all phocids species, by contrast,use a fasting strategy in which mother phocids, having accumulated large energy stores before they arrive at breeding sites, fast throughout the entire lactation period, which lasts from 4 to 50 days depending on the species. However, recent studies onharbor seals, a phocids species, found that lactating females menced foragingapproximately 6 days after giving birth and on average made 7 foraging trips during the remainder of their 24-day lactation period. The maternal strategy evolved by harbor seals may have to do with their *** all size and the large proportion of their fat stores depleted in lactation. Harbor seals are *** all pared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period. Studies show that mother seals of these species use respectively 84 percent, 58 percent, and 33 percent of their fat stores during lactation. By parison, harbor seals use 80 percent of their fat stores in just the first 19 days of lactation, even though they occasionally feed during this period. Since such a large proportion of their fat stores is exhausted despite feeding, mother harbor seals clearly cannot support all of lactation using only energy stored before giving birth. Though *** allerthan many other phocids, harbor seals are similar in size to most otariids. In addition,there is already some evidence suggesting that the ringed seal, a phocids species thatis similar in size to the harbor seal, may also use a maternal foraging strategy.------------------------------pheromones是什么东东，是不是该划为odorantThere is no consensus among researchers regarding what qualifies a substance as a pheromone. While most agree on a basic definition of pheromones as chemicals released by one individual of a species which, when detected by another individual of the same species, elicit a specific behavioral or physiological response, some researchers also specify that the response to pheromones must be unconscious. In addition, the distinctionbetween pheromones and odorants—chemicals that are consciously detected as odors---can be blurry, and some researchers classify pheromones as atype of odorant. Evidence that pheromone responses may not involve conscious odor perception es from the finding that in many species, pheromones are processed by the vomeronasal (or accessory olfactory) system, which uses a special structure in the nose, the vomeronasal organ (VNO),。 6.有没有科技的知识,要英文的 科技知识英文短文什么是清洁能源 Clean Energy Clean energies are forms of energy which do not pollute the air, the ground, or the sea.Clean energies include:Solar powerSolar power describes a number of methods of harnessing energy from the light of the Sun. It has been present in many traditional building methods for centuries, but has bee of increasing interest in developed countries as the environmental costs and limited supply of other power sources such as fossil fuels are realized. It is already in widespread use where other supplies of power are absent such as in remote locations and in space.As the Earth orbits the Sun, it receives approximately 1,400 W / m² of energy, as measured upon a surface kept normal (at a right angle) to the Sun (this number is referred to as the solar constant). Of the energy received, roughly 19% is absorbed by the atmosphere, while clouds on average reflect a further 35% of the total energy. The generally accepted standard is 1020 watts per square meter at sea level.After passing through the Earth's atmosphere, most of the sun's energy is in the form of visible and ultraviolet light. Plants use solar energy to create chemical energy through photosynthesis. We use this energy when we burn wood or fossil fuels or when we consume the plants as a source of food.Wind power Wind power is the kiic energy of wind, or the extraction of this energy by wind turbines. This article deals mainly with the intricacies of large-scale deployment of wind turbines to generate electricity.Wave power Wave power refers to the capture of ocean surface wave energy to do useful work including electricity generation, desalination, and filling a reservoir with water. Wave power is a form of renewable energy. Though often co-mingled, wave power is physiologically distinct from the diurnal flux of tidal power and the steady gyre of ocean currents which are powered by the earth's rotation. Wave power generation is not a widely employed technology with only a few experimental sites in existence.Salinity gradient powerSalinity Gradient is a technology that takes advantage of the o *** otic pressure differences between salt and fresh water.If we place a semipermeable membrane (like that in a reverse o *** osis filter) between sealed bodies of salt water and fresh water, the fresh water will gradually travel through the filter by o *** osis. By exploiting the pressure difference between these two bodies of water we can extract energy mensurate to the difference in pressure.Tidal power Tidal power is a means of electricity generation achieved by capturing the energy contained in moving water mass due to tides. Two types of tidal energy can be extracted: kiic energy of currents due the tides and potential energy from the difference in height (or head) between high and low tides.Geothermal power Geothermal power is electricity generated by utilizing naturally occurring geological heat sources. It is a form of renewable energy.Some renewable energies are not clean energies - for example:Biofuels because they release NOX and particulates into the environment. Hydroelectric power because it destroys the river basin and has a negative effect on fish migration.。 7.英语作文 以科普知识与科学技术为话题 Whether it's a noisy car engine（发动机） or a rattling washing machine, noise pollution can be a big problem that can affect people's quality of life. Now there are new awards that recognise the quietest designs. A Quiet Mark award will be given to the quietest products on the market, from hedge trimmers and power tools to headphones and hairdryers. There's even a quiet alarm clock, which uses light and soft sounds to wake you up! The purple Quiet Mark logo will be featured on the chosen products so that shoppers can spot them easily. Gloria Elliott from the Noise Abatement Society said: “When someone says they have to turn up the telly to overe the noise of the kettle, or the washing machine sounds like a train ing through the kitchen, then you start to see the effects of unnecessary noise on quality of life.” What do you think? Does noise pollution affect your life?
樱桃香香
I. CASE BACKGROUND1. Abstract:This website aims to analyze the key events leading to the construction of the Panama Canal, and detail certain environmental and tactical problems that threaten the canal today. The website historically examines why people wanted to construct the Panama Canal and details the efforts that lead to the construction of the canal. The website will also go into detail on how the U.S. supported the liberation of Panama, the decisive strategies it implemented to complete the canal, and a brief overview of events that take us to today's situation with the canal. Finally, the website ends on how environmental problems of deforestation and fresh water loss coincide to threaten the maintenance of the canal as well as its proposal to increase capacity to satisfy rising demands.2. Description:There has been a strong desire to have a canal run through the Central American isthmus since the early 16th century when the Spanish dominated the region. They sought to build a canal to achieve an easier route to access their colonies on the Atlantic and Pacific sides. Though, the Spanish government had plans in place no action was taken. Interest intensified to build a canal when gold was discovered in California in 1848. American settlers, looking for land and gold, wanted a quicker route than making the arduous trek across the continental U.S. In 1850, an international expedition composed of Colombia, France, Britain and the U.S. went to explore a claim made by Dr. Edward Cullen on how to cross the Darien Gap, the shortest distance between the tide waters of the Atlantic and Pacific in the Americas. The U.S. expedition, led by Navy Lieutenant Isaac Strain, arrived early and went into the Darien Gap without Cullen's guidance. Most of Strain's men died on the misguided expedition and Strain declared that a canal built through the Darien Gap was "impracticable." (McCullough, 22-23) In 1870, Commander Thomas Selfridge took two expeditions through the Darien Gap and followed Dr. Cullen's trail. While his first expedition faced many hardships getting from the Atlantic side to the Pacific, his expedition made it. Selfridge added insight on how the canal should be built, saying it must be "through-cut," at sea level. (McCullough, 44)Ferdinand Marie de Lesseps was not an engineer or an architect, he was an entrepreneur extraordinaire. "He had all the nerve, persistence, dynamic energy, a talent for propaganda, a capacity for deception and imagination." (53, McCullough) With his outgoing social manner and his dream firmly in place, de Lesseps made the construction of the Suez Canal happen. He was the chairman and president of the Suez Canal Company and was the charmed guardian for the fortunes of all his shareholders. De Lesseps had fascinating dreams that kept the public enthralled like railways from Paris to Moscow to Peking, or creating an inland sea in the Sahara Desert by breaking through a ridge on Tunisia's Gulf of Gabes and flooding a depression the size of Spain. (57, McCullough) He was able to handle and use money like no other man in his time. Though, in 1875 two things happened. One was the British took control of the Suez Canal, and while he remained president his influence was undercut. The second event that occurred was his decision to take on the project of building a canal between the Pacific and Atlantic Oceans in the Americas.In the summer of 1875, de Lesseps declared his desire to build an inter-oceanic canal through the Americas at France's Geographical Society. (58, McCullough) In May of 1879, de Lesseps hosted a meeting with delegations of 22 countries around the world, discussing the tactics on how to build the canal. This delegation, the International Canal Congress, brought suggestions to the floor on the type and location. There was debate over whether the canal should be built in Panama or Nicaragua. When Panama was chosen, the next argument was whether it should be a sea level canal or a lock canal. De Lesseps declared that it would have to be a sea level canal. The problem of a sea level canal was seen right away in terms of the landscape that the canal was to be built on. The source of this problem was the Chagres River. "The absolutely unavoidable problem was the river. Any canal at Panama-a lock canal, a sea-level canal-would have to cross the river at least once. If a sea-level canal were cut through, the result would be a stupendous cataract. The fall of the river into the canal would be 42 feet and this measurement was based on the level of the river in the dry season, when the river was only a few feet deep. In the rainy season the river could be instantly transformed into a torrent, rising ten feet in an hour. The cost of controlling so monstrous a force-if it could be done at all-was beyond reckoning." (76, McCullough)Nicholas Joseph Adolphe Godin, chief engineer with the French Department of Bridges and Highways, agreed with one of the American delegates that the Chagres River needed to be bridged, though he decided for that to happen there needed to be dams creating two artificial lakes. These lakes would act like the lake in Nicaragua, when the Nicaragua plan was on the table. "There would be two artificial lakes, with flights of locks, like stairs, leading up to the lakes from the two oceans. As Lake Nicaragua was the essential element in the Nicaraguan plan, providing both easy navigation and an abundant source of water for the canal, so his man-made lakes would serve at Panama." (80, McCullough) These dams would allow the Charges River to flow into the lakes, providing an endless source of water for canal use. On May 28, 1879, Panama was pronounced the proper place for the canal and a sea-level canal was the type of canal that would be built.After de Lesseps returned to France from his three month visit to where the canal would be built, he immediately started fundraising and propagandizing the campaign. De Lesseps and France were confident; they had exceptional engineers and the experience of the Suez Canal. Though, in Panama they had to improvise. Panama was infinitely more challenging than the Suez in every aspect except for the distance and any lesson that Suez provided was useless and a hindrance. The French had to go into a thickly matted jungle that had poisonous reptiles, jaguars and pumas, and tons of insects. The summer of 1881, the French also discovered another deadly obstacle in their canal project; yellow fever and malaria. By the end of 1881 there were 2,000 men at work, including office and technical staff. As the number of laborers increased so did the death rate. By the end of 1883, 1,300 laborers had died throughout the year. While progress was being made laborers would die, at times on average of 200 per month. (McCullough, 160-161)The rate of sickness only got worse. The worst year for the French regime in Panama was 1885, where up to forty people per day died at times. (McCullough, 172) The death toll was not the only number increasing at a rapid rate, so too was the financial cost. De Lesseps’ efforts to raise the proper money were without comparison in his time. He was truly talented at raising money for his projects and inspired many of his countrymen. Unfortunately, the conditions kept getting more arduous in Panama and de Lesseps had to keep justifying to the French government to give him more money. While his efforts were valiant, on February 4, 1889, the shareholders of the original company assigned a liquidator and the French effort was brought to an end. De Lesseps could only whisper, “It is impossible! It is shameful!” (McCullough, 202)While de Lesseps’ might have wanted to continue his legacy of the construction of important canals throughout the world, the U.S. had other reasons. President Theodore Roosevelt and Captain Alfred Thayer Mahan were obsessed with naval power. Sea power was necessary to facilitate trade and peaceful commerce, therefore, the country with the greatest sea power would be able to wield great influence on the world stage. Therefore, long coastlines, good harbors, and power over the Suez and the soon-to-be Panama Canal was essential. Mahan’s theories on sea power conflicted with another major geopolitical, that of Sir Halford Mackinder. Mackinder believed that spatial integration and advanced technology on the interiors of continents was essential. (http://www.list.org/~mdoyle/theory.html) Perhaps the U.S. followed Mackinder and Mahan, because before de Lesseps arrived in Panama to begin work on the canal, the U.S. controlled the Panama Railroad that went from Colon, on the Northern Atlantic side, to Panama City on the Southern Pacific side. The railroad in addition to the canal in 1914, allowed the U.S. to control nearly all commodities and ships going between the Pacific and Atlantic oceans and vice versa.The burgeoning U.S. fleet needed to be able to move between the Caribbean and Pacific easier than taking the 18,000 mile route around South America. Secretary of State John Hay went to Colombia to negotiate the terms in buying the region so that the U.S. could start construction in the Colombian province of Panama. The Colombian Congress rejected the offer. Roosevelt who did not think highly of the Colombian government, demonstrated in this quote: "We were dealing with a government of irresponsible bandits," Roosevelt stormed. "I was prepared to . . . at once occupy the Isthmus anyhow, and proceed to dig the canal. But I deemed it likely that there would be a revolution in Panama soon." ( The U.S. sent battleships outside of Colon and Panama City to prevent the Colombian army from mobilizing, while the Panamanian rebels declared independence on November 3, 1903. The U.S. guaranteed sovereignty to Panama and paid them $10 million up front in order to have control over the canal zone.The U.S. would end up building the canal through Panama, opening up on 1914, though not without more deaths from illnesses. The U.S. did though have Dr. Gorgas who had developed treatment for Malaria and Yellow Fever, which were the main source of diseases in the region. Unlike the French who had to improvise, the Americans learned from the mistakes the French engineers made and were not bogged down by Panama’s terrain. The U.S. also shifted the engineering plan from a sea-level canal to a lock canal. In total, the U.S. suffered over 5,000 worker deaths, bringing the total to over 25,000 for the whole project over the thirty year period of the canal’s construction.Today, the Panama Canal faces a myriad of problems that need to be fixed, should the canal continue to be effective. Deforestation of the rainforest around the canal basin could lead to water loss. Considering the canal will be operating at maximum capacity all the time in 2009, due to increased trade between Asia and the Americas, fresh water used to fill the locks is emptying out at rapid rates. While this is not a concern during the wet season in Panama, during the dry season, between December and April, this could turn into a potential disaster. Deforestation can also hurt the burgeoning tourist industry, should most of the wildlife around the canal basin disappear. The other main problems that the Panama Canal faces today are the amount of ships that travel through the canal each day as well as the size of the ships. Last month, the Panamanian government decided to propose an enlargement program adding two more locks, one on the Atlantic side as well as the Pacific side. These locks will be able to increase the capacity of what the canal can handle, as well as provide enough room so that the post-Panamax ships that cannot fit through the current locks will be able to use the canal. Channels will be widened for these new locks and water reutilization plants will be established. Also, Gatun Lake is set to be deepened to increase water holding capacity. (Third Set of Locks Project, Fact Sheet)一,案例背景1 .摘要:这个网站旨在剖析关键事件导致建造巴拿马运河,并详细某些环境和战术问题,威胁运河的今天.网站历史研究的人,为什么要兴建巴拿马运河和细节的努力,导致建造的运河.该网站也将详述如何支持美国解放巴拿马,具有决定性的战略实施,完成南运河,并简要概述事件,我们今天的局面,与运河.最后,该网站的目的,就如何把环境问题,森林和淡水的损失,同时威胁到维持运河以及其提案,以增加其容量,以满足日益增长的需求.2 .描述:有一个强烈愿望,有一条运河,贯穿中美洲地峡初以来, 16世纪时,西班牙为主的地区.他们试图建立一个以运河,以达到一个更容易的途径进入他们的殖民地,对大西洋和太平洋.虽然,西班牙政府已经准备到位,没有采取任何行动.利息加紧修筑一条运河黄金时,被发现在加州1848 .美国定居,寻找土地和黄金,想要一个便捷的路线比作艰苦跋涉,横跨大陆,美国, 1850年,一个国际探险队组成,哥伦比亚,法国,英国和美国去探索提出的索赔博士爱德华卡伦对如何跨越包括darien差距,最短距离潮流水域是大西洋和太平洋在美洲.美国探险队,由海军中尉艾萨株,提前抵达,并进入了包括darien差距卡伦的指导.大部分菌株的男人就死了误导探险和应变宣称运河建成通过包括darien差距,是"不切实际" ( 2.69月22-23日) 1870年,司令托马斯空降仿真了两次考察,通过包括darien差距,并遵循卡伦博士的线索.而他的第一次探险队遇到了许多困难,从大西洋到太平洋,他的探险了.空降仿真洞察力,对如何运河应建说,它必须透过"禁" ,在海平面. ( 2.69 , 44 )费迪南德玛丽aranea不是一个工程师或建筑师,他是一个企业家开讲. "他所有的神经,毅力,活力,人才,为宣传,身份诈骗和想象力" ( 53岁, 2.69亿)与卸任的社会态度和梦想坚定地德aranea取得建造苏伊士运河发生.他是董事长兼总裁苏伊士运河公司是8548监护人的命运他的所有股东. 德aranea了迷人的梦羁市民着迷铁路一样,从巴黎到莫斯科到北京,或创造一个内海,在撒哈拉大沙漠中突破了里奇对突尼斯的海湾加贝斯和洪水气压大小西班牙. ( 57 , 2.69 ) ,他能否有效地处理和利用这些钱,没有其他人在他的时候.虽然,在1875年两件事情.其一是英国控制了苏伊士运河,而他仍然是总统,他的影响力被削弱. 第二次发生的事件,他决定采取对工程建设的一条运河与太平洋和大西洋,在美洲.在夏季, 1875年,德aranea宣布他的愿望,即建立一个跨大洋运河通过在美洲的法国地理学会的会员. ( 58 2.69 ) ,可在1879年,德aranea主持召开了各代表团, 22个国家在世界各地,讨论战术,就如何建设运河.这个代表团,国际运河国会提出建议,向地板上的类型和地点.有争论运河应建于巴拿马和尼加拉瓜.巴拿马时,被选定后,另一个论点是,我们是否应该海平面运河或运河船闸.德aranea宣布,它势必要经历一个海平面运河.问题海平面运河被马上从景观,是运河将建成.这问题的根源是查格雷斯河. "绝对不可避免的,问题是河.任何运河在巴拿马举行了运河船闸,海平面运河将要过河至少一次.如果海平面运河被划破,结果将是一个了不起白内障.秋季河水入运河,将42英尺这种测量是基于一级河流在旱季时,河水只有几英尺深.在雨季河水可瞬间转化成洪流,上升10英尺,在一个小时.成本控制等弥天的力量, 如果它可以做到在所有被清算以后. " ( 76 , 2.69 )尼古拉约瑟夫夫奥努丁总工程师法文系,桥梁和公路,同意一个美国代表说, 查格雷斯河需要加以弥合,但他决定为做到这一点,需要有水坝形成两个人工湖.这些湖泊会像湖中,尼加拉瓜,在尼加拉瓜计划是放在桌上. " ,将有两个人工湖,同航班的铁锁,像楼梯,导致该湖由两大洋.至于尼加拉瓜湖是必不可少的因素,在尼加拉瓜计划,同时提供简单易用的导航功能和丰富的水源供运河,所以他的人造湖泊将在巴拿马. " ( 80 , 2.69 ) ,这些水坝将使收费河流流入湖泊,提供了无尽的水源使用运河.于1879年5月28日,巴拿马宣告各得其所,为运河和海平面运河类型运河将建成.经过德aranea返回法国,从他3个月的访问,而运河将建成后,他立即开始筹款和宣传活动. aranea德和法国人的信心;他们有着非凡的工程师和经验丰富的苏伊士运河.虽然,在巴拿马只好凑合.巴拿马是无限的难度大于苏伊士在各个方面,除了距离和任何教训苏伊士提供的是没用的一个障碍.法国已经到了一个厚厚但这就是弱肉强食了有毒的爬行动物,美洲虎和美洲狮,一吨昆虫.夏天, 1881年,法国又发现了另一个致命的障碍,他们在运河工程;黄热病和疟疾.截至1881年共有2000名男子在工作,包括办公室和技术人员.随着一系列的劳动者增加,所以没有死亡率.截至1883年, 1300名华工死于贯穿全年.而正在取得进展,劳动者会死的时候,平均每月200 . ( 2.69 , 160-161 )率病只有越变越糟.最差的一年,法国政权巴拿马是1885年,有多达40人,每天死亡的时候. ( 2.69 , 172 ) ,死亡人数不仅数量增长快,所以也被财务费用.德aranea '努力提高妥善钱比较,在他的时候.他是真正的天才,在筹钱,为他的计划,并激发他的许多同胞.不幸的是,保存条件越来越艰苦,在巴拿马和de aranea保持了理向法国政府给他更多的钱.而他的努力得到了英勇的,对1889年2月4日,股东对原公司指定清算人和法国努力告一段落.德 aranea只能嘀咕, "这是不可能的!实在可耻! " ( 2.69 , 202 )而德aranea '也许是想继续他所遗留下来的建筑重要的,运河在世界各地,美国也有其他原因.总统罗斯福和队长阿尔弗雷德马汉厌倦了痴迷的海军实力.海上力量是必要的, 以促进贸易和商业的和平,因此,该国最大的海上力量将能发挥很大的影响力在世界舞台上.因此,有漫长的海岸线,优良的港口,电力超过苏伊士运河和不久将巴拿马运河是必不可少的.马汉的理论,对海权的冲突,与另一家大型缘,爵士mackinder排出. mackinder认为,空间整合和先进技术对内饰大洲是必不可少的. ( ~ mdoyle / theory.html )也许美国走mackinder和马汉,因为在此之前德aranea抵达巴拿马开始工作,对运河,美国控制巴拿马铁路, 1814年结肠癌,对北部大西洋一方,在巴拿马市对南大西洋方面.铁路除了运河, 1914年允许美国几乎控制所有商品和船只来往太平洋和大西洋,反之亦然.新兴的美国舰队必须能够来往于加勒比海和太平洋地区较容易以 18000英里的路线周围南美洲.国务卿约翰海伊前往哥伦比亚进行谈判的条件,买区域,使美国可以动工,在哥伦比亚省的巴拿马.哥伦比亚国会拒绝了.罗斯福没有瞧得起哥伦比亚政府表明,在此引述他的话: "我们打交道的政府不负责任的土匪, "罗斯福破门. "我当时准备.一下子占据地峡无论如何,并着手挖掘运河.但我认为它有可能将是一场革命,巴拿马很快. " ( ) 1美国派出战舰之外结肠癌和巴拿马市,以防止哥伦比亚军队调动,而巴拿马叛军宣布独立, 1903年11月3日.美国保证主权巴拿马向他们支付1000万美元的前面,以控制运河区.美国落得建设运河通过巴拿马,开放的1914年, 虽然没有更多的人死于疾病.美国虽然没有博士gorgas曾研制治疗疟疾和黄热病,其中主要来源地区的传染病.不同于法国人来了一段即兴,美国人的错误中汲取经验,法国工程师了,并没有陷入巴拿马的地形.美国也转向工程计划从海平面运河锁定运河.总起来,美国遭受了5000多名工人死亡,使总数达到 25000多名,为整个工程在过去30年期间,运河的建造.今天,运河面临着很多问题,需要加以固定,如果运河继续有效.砍伐雨林围绕运河流域可能导致水土流失.考虑到运河将满负荷运行的所有时间,在2009年,由于之间的贸易增加,亚洲和美洲,淡水用来填补门锁是排空出高速率.虽然这不是一个关注的雨季期间,在巴拿马,每逢旱季, 12月至4月,这可能变成一个潜在的灾难.毁林也伤害了蓬勃发展的旅游业,应大多数野生围绕运河流域消失.另一个主要问题是巴拿马运河今天面临数额的船只穿越运河每天以及大小船只.上个月,巴政府已经决定提出的扩大计划,并增加了两个锁,一个是关于大西洋方以及太平洋侧.这些锁,将能够提高能力,有什么运河能处理,以及提供足够的空间,使后巴拿马型船舶不能适合通过这次锁,将能够使用运河.渠道将拓宽为这些新的门锁和中水回用厂,将被建立.同时, gatun湖设为深化,以增加蓄水能力. (第三套船闸工程概况)
优质英语培训问答知识库
