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The United States in the North Central and North America also includes the territory of Alaska and the Pacific northwest of the Hawaiian Islands in Central. North and the Canadian border, south through the Gulf of Mexico, west Pacific, East Bin Atlantic. Coastline of 22,680 kilometers. Most areas of continental climate, the southern subtropical climate. Big temperature difference between north-central plains, Chicago January average temperature -3 ℃, 7月24 ℃; Gulf Coast in January the average temperature of 11 ℃, 7月28 ℃. Climate The United States has almost all the world's climate types, in the main agricultural zone in rare severe drought, flooding is not uncommon, and a moderate while the temperature to adequate rainfall. Climate impact on the United States is the main Arctic air, from the Pacific each year bring a large-scale low pressure, these low pressure through the Nevada mountains, the Rocky Mountains and the Cascade range, attach a great deal of moisture, when they arrived at the central pressure Great Plains, will be able to reorganize, leading to the main air masses meet and bring a fierce thunderstorm, especially in the spring and summer. These may sometimes heavy rain and low pressure to join the other, continue to the East Coast and the Atlantic Ocean, and will become more intense storms in the northeast (Nor'easter), in the United States in the Northeast Atlantic region and New England a wide-ranging and heavy snowfall. Great Plains incomparably vast grassland has also developed a number of the world's most extreme climate change phenomenon. 美国位于北美洲中部,领土还包括北美洲西北部的阿拉斯加和太平洋中部的夏威夷群岛.北与加拿大接壤,南靠墨西哥湾,西临太平洋,东濒大西洋.海岸线22680公里.大部分地区属于大陆性气候,南部属亚热带气候.中北部平原温差很大,芝加哥1月平均气温－3℃,7月24℃；墨西哥湾沿岸1月平均气温11℃,7月28℃. 气候 美国几乎有着世界上所有的气候类型,在主要农业地带少有严重的干旱发生、洪水泛滥也并不常见,并且有着温和而又能取得足够降雨量的气温. 影响美国气候的主要是北极气流,每年从太平洋带来了大规模的低气压,这些低气压在通过内华达山脉、洛矶山脉、和喀斯喀特山脉时夹带了大量水分,当这些气压到达中部大平原时便能进行重组,导致主要的气团相遇而带来激烈的大雷雨,尤其是在春季和夏季.有时这些暴雨可能与其他的低气压会合,继续前往东海岸和大西洋,并会演变为更激烈的东北风暴（Nor'easter）,在美国东北的中大西洋区域和新英格兰形成广泛而沉重的降雪.大平原广阔无比的草原也形成了许多世界上最极端的气候转变现象.
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美国是世界上最发达的国家，对于美国，你的了解有多少?下面，是我为你整理的有关介绍美国的英语作文，希望对你有帮助!
有关介绍美国的英语作文篇1
Based on historical documents, modern survey and statistics, as well as the result of predecessor studies, the trend and main process of forest dynamics are recognized. The forest area and forest coverage rates for each province of China from 1700 to 1949 are es- timated backward by every 50 years. Linking the result with modern National Forest Inventory data, the spatial-temporal dynamics of Chinese forest in recent 300 years (AD 1700–1998) is quantitatively analyzed. The study shows that in recent 300 years, the forest area in current territory of China has declined by 0.95×108 hm2 (or 9.2% of the coverage rate) in total, with a trend of decrease and recovery. Before the 1960s, there was a trend of accelerated de- scending. The forest area was reduced by 1.66×108 hm2 (or 17% of the coverage rate) in 260 years. While after the 1960s, there has been a rapid increase. The forest area increased by 0.7×108 hm2 (or 8% of the coverage rate) in 40 years. The study also shows that there is a significant spatial difference in the dynamics of forest. The amplitudes of increasing and de- creasing in western China are both smaller than the ones in eastern China. During the rapid declining period from 1700 to 1949, the most serious decrease appeared in the Northeast, the Southwest and the Southeast, where the coverage rate in most provinces dropped over 20%. In Heilongjiang Province, the coverage rate dropped by 50%. In Jilin Province, it dropped by 36%. In Sichuan Province and Chongqing Municipality, it dropped by 42%. In Yunnan Prov- ince, it dropped by 35%. During the recovery period 1949–1998, the western provinces, mu- nicipality and autonomous regions, including Ningxia, Gansu, Inner Mongolia, Si- chuan–Chongqing, Yunnan, Tibet, Xinjiang and Qinghai, etc, the increase rates are all below 5%, while the eastern provinces, municipality and autonomous regions (except Heilongjiang, Hubei, Jiangsu–Shanghai) have achieved an increase over 5%, among which the Guang- dong–Hainan, Guangxi, Anhui, Beijing–Tianjin–Hebei, Shandong, Henan, Zhejiang, and Fu- jian have an increase over 10%.
有关介绍美国的英语作文篇2
A history of long and effortless success can be a dreadful handicap,but,if properly handled,it may become a driving force.When the United States entered just such a glowing period after the end of the Second World War,it had a market eight times larger than any competitor ,giving its industries unparalleled economies of scale.Its scientists were the world's best,its workers the most skilled.American and Americans were prosperous beyongd the dreams of the Europeans and Asians whose economeics the war had destroyed.
It was inevitable that this primacy should have narrowed as other countries grew richer.Just as inevitably,the retreat from predominace proved painful.By the mid 1980s Americans had found themselves at a losss over their fading industrial competitiveness.Some huge American industries,such as consumer electronics,hand shrunk or vanished in the face of foreign competitiong.By 1987 there was only one American television maker left,Zenith.(Now there is none :Zenith was bought by SouthKorea'sLGElectronics in July.)Foreign made cars and textiles were sweeeping into the domestic market.America's machine-tool industry was on the ropes.For a while it looked as though the makeing of semiconductors,whidh America had invented and which sat at the heart of the new computer age,was going to be the next caualty.
All of this caused a crisis of confidenc.Americans stopped taking prosperity ofr granted .They began to believe that their way of doing business was failing,and that their incomes would therefore shourtly begin to fall as well .The mind -1980s brought one inquiry after another into the causes ofAmerica's in dustrial decline.Thir sometimes sensational findings were filled with warnings about the growing competitiong from overseas.
How things have changed!I1995 the United States can look back on five years of solid growth while Japan has been struggling.Few Americans attribute this Self doubt has yielded to blind pride.American industry has changed its structure ,has gone on a diet ,has learnt to be more quik witted,according to Richard Cavanagh,executive dean of Harvards Kennedy School of Government.'It makes me proud to be an American just to see how our businesses are improving theirproductivity,says Stephen Moore of the Cato Institute ,a think tank in Washington,DC,And William Sahlman of the Harvard Business School believes that people will look back on this perido as a golden age of business management in the United States.
有关介绍美国的英语作文篇3
You are what you eat.;Nutrition experts often use this saying to promote better eating habits.What we put in our mouths does become a part of us.But we can look at this statement another way.What we eat reflects who we are--as people and as a culture.Do you want to understand another culture?Then you ought to find out about its food.Learning about American food can give us a real taste of American culture.
What is American food?At first you might think the answer is easy as pie.To many people,American food means hamburgers,hot dogs,fried chicken and pizza.If you have a sweet tooth,you might even think of apple pie or chocolate chip cookies.It's true that Americans do eat those things.But are those the only kind of vittles you can find in America?
你是你吃什么。,营养专家经常使用这句话来促进更好的饮食习惯。我们把我们的嘴的东西确实成为我们的一部分。但我们可以看看这个语句的另一种方法。我们是谁吃的反映出我们自己——不论什么人,如文化。你想了解另一种文化吗?然后你应该找出它的食物。学习美国食品可以给我们一个真正的美国文化的味道。
美国食物是什么?乍听之下你可能认为答案容易得很。对许多人而言,美式食物就是汉堡、热狗、炸鸡和披萨。如果你喜欢吃甜食,你可能会想到苹果派或巧克力片饼干。美国人确实吃这些东西。但这些就是你在美国唯一找得到的食物吗?
