描寫三峽大壩英語作文（通用5篇）
描寫三峽大壩英語作文 篇1
The environmental impact of the Three Gorges Project pros and consthe ecological balance in the regulation of the advantages outweigh the disadvantages.The Group noted that the Three Gorges Project Demonstration:beneficial effects mainly in the middleincluding reducing flood damage to the ecological environmentreduce coal pollution of the environmentreduce siltation of Dongting Lake and so on.Adverse effects mainly in the reservoir areain addition to farmland inundatedchanging landscapes and large number of immigrantsthe Shang Duizhen rare speciesTail floodslandslidesearthquakesand so on terrestrial plants and animals have a certain influence.
描寫三峽大壩英語作文 篇2
The Three Gorges are situated ① in the middle reaches of the Yangtze Riverand are famous throughout the world.
The Three Gorges are:the Xiling Gorge(西陵峽)Wu Gorge(巫峽)and Qutang Gorge(瞿塘峽).Along with them there are a number of beautiful places of interestsuch asZhaojun VillageQu Yuan Temple and Baidi Town.
The Gezhouba Dam is at the entrance to the Gorges.A big power station has been built here.Since the reform and open policies began to be carried outgreat changes have taken place and the Three Gorges of the Yangtze River have taken on a new look.At present a large multipurpose water conservancy project ② is under construction.
The Three Gorges will benefit ③ the people more and make greater contributions to China.
描寫三峽大壩英語作文 篇3
The three gorges dam is located in China's hunan provincethe whole project is expected to completion in 20__.The flood control and power generation function with the dam.The Yangtze river in the same period a year is always flooding.Destroyed crops and homeseven claimed many lives.Because the surface of the lakethe dam will rise by more than 100 metersand need immigrants millionsthe three gorges region of the many places of interest will be submerged.
描寫三峽大壩英語作文 篇4
As with many dams there is a debate over costs and benefits. Although there are economic benefits such as flood control clean hydroelectricity and navigation there are also concerns about the relocation of people siltation loss of archaeological and cultural sites and the impact on regional ecosystem
While the country benefits from gargantuan potential of electricity generation we have to face up to various environmental conservation issues concerning geological and ecological environment along both river sides and whole upper reaches. The professional designers of the great dam now have to work out a practical way to prevent and remedy pollution effectively which has already been the focus of world attention.
描寫三峽大壩英語作文 篇5
大家好!歡迎您到三峽大壩參觀游覽!下面我將通過介紹，使大家對工程有一個(gè)較為全面的了解。
我們現(xiàn)在所看到的是三峽工程的1：1250的微縮模型，它反映的是20xx年三峽工程全面竣工之后的壩區(qū)景觀。先讓我們來確認(rèn)一下我們目前所處的方位吧!剛才各位途徑享有“公路博物館”之美譽(yù)的三峽工程專用公路、壩區(qū)主干道江峽大道后，經(jīng)過了永久船閘，然后盤山而上來到了三峽壩區(qū)15.28平方公里征地范圍內(nèi)的海拔制高點(diǎn)—壇子嶺。壇子嶺因其山體形狀酷似四川人做泡菜的壇子倒扣在山頂上而得名，海拔262.48米，只要大家登上壇子嶺的頂部觀景臺(tái)，便可俯瞰三峽壩區(qū)的施工全貌，飽覽西陵峽黃牛巖的秀麗風(fēng)光和秭歸新縣城的遠(yuǎn)景。因此，壇子嶺作一個(gè)永久性的觀景臺(tái)，隨時(shí)歡迎您的到來。
模型上的藍(lán)色水流代表長江，長江的左岸右岸是如何區(qū)分的呢?順?biāo)ⅲ挠沂址较驗(yàn)橛野�，即通常所說的江南，相對地，各位剛才來的這一邊為長江的左岸，即為江北，背對的是長江的下游宜昌方向。
宏偉的長江三峽工程主體建筑物由橫跨長江的攔河大壩、位于其中段的泄洪壩段、左右岸發(fā)電廠房及通航建筑物組成。它的建設(shè)方岸是：一級開發(fā)、一次建成、分期蓄水、連續(xù)移民。
攔河大壩以185平臺(tái)為左岸起點(diǎn)，延伸到長江南岸的白巖尖，軸線全長約為2309米，屬于混凝土重力壩(用混凝土澆筑的依靠壩體的自重來對抗庫區(qū)的水壓和其它荷載作用不同于另一種壩—拱壩)。大壩建成之后，壩頂會(huì)形成一條溝通江南與江北的公路，寬度為15米，大壩底部寬度為124米，如果您從側(cè)面看這個(gè)大壩剖面，它呈現(xiàn)為直角梯形，大壩的海拔高程與185平臺(tái)等高，為海拔185米。這樣，萬里長江就將在西陵峽中段被攔腰截?cái)�，從三峽大壩直至上游重慶市六百多公里的水路就將形成一個(gè)天然的河道型水庫，水庫容量為393億立方米，正常水庫水位是海拔175米，洪水來臨之前，將水位降低至海拔145米，這樣防洪庫容量達(dá)到221.5億立方米。
中段的泄洪壩段長483米，22個(gè)溢流表孔(寬為8米，堰頂高程156米，主要作用是泄洪)與23個(gè)溢流深孔(7米9米，孔底高程為90米，主要作用是沖沙。)主要承擔(dān)渲泄洪水和清除泥沙的任務(wù)，泄洪的設(shè)計(jì)最大流量是11.6萬立方米/秒，相當(dāng)于千年一遇的洪水流量，因?yàn)闅v史上長江上最大的洪水發(fā)生于1870年，當(dāng)時(shí)的最大水流量為10.8萬立方米/秒。黃陵廟的木柱上就留下了當(dāng)時(shí)的水跡，這為我們的三峽工程的設(shè)計(jì)提供了珍貴的水文質(zhì)料。相信1998年的洪水給大家留下了深刻的印象，荊江大堤全面告急、牌洲灣決口、九江新區(qū)被淹，直接經(jīng)濟(jì)損失高達(dá)1600億，這次洪水的最大流量是6.8萬立方米/秒。所以在大壩竣工之后，荊江河段的防洪標(biāo)準(zhǔn)將大大提高。
位于泄洪壩段兩邊的是左右兩個(gè)壩后式廠房，模型上的圓孔代表我們將來要安裝的水電機(jī)組的臺(tái)數(shù)，我們將在左岸發(fā)電廠房安裝14臺(tái)水電機(jī)組，右岸發(fā)電廠房安裝12臺(tái)水電機(jī)組，每臺(tái)機(jī)組的單機(jī)容量為70萬千瓦。相當(dāng)于一個(gè)丹江口水電站的發(fā)電量。這樣大容量的發(fā)電機(jī)組目前在全世界僅有21臺(tái)，其中目前居世界第一位的巴西和巴拉圭合建的伊泰普水電站擁有18臺(tái)，目前居世界第三位的美國大古力水電站擁有3臺(tái)，而將來三峽水電站將擁有26臺(tái)水電機(jī)組(每臺(tái)機(jī)組重達(dá)600噸超過埃菲爾鐵塔)，總裝機(jī)容量達(dá)1820萬千瓦，年發(fā)電量847依度，相當(dāng)于葛洲壩水電站年發(fā)電量的6.5倍，相當(dāng)于廣東大亞灣核電站年發(fā)電量的10倍，于當(dāng)今世界最大的伊泰普水電站相比，其三峽大壩為中心，可以輸送到1200平方公里左右，最東—上海;最西—蘭州;最南—廣州;最北—天津，源源不斷地輸向華中、華東和四川東部地區(qū)，促進(jìn)這些地區(qū)的水電開發(fā)和經(jīng)濟(jì)騰飛，實(shí)現(xiàn)“西電東送”的戰(zhàn)略格局。水能是清潔的可再生能源，不會(huì)消耗自然資源和造成環(huán)境污染。三峽工程每年可以節(jié)約四千萬噸至五千萬噸的原煤，減少火力發(fā)電，減輕環(huán)境污染，從而優(yōu)化中國的能源結(jié)構(gòu)。