介绍美国景点英语精选作文

介绍美国景点英语精选作文

美国是世界上最发达的国家，对于美国，你的了解有多少?下面是小编为你整理的介绍美国景点英语精选作文，希望对你有帮助!

介绍美国景点英语精选作文篇 1 Ｂased on historical documents, modern survey and statistics, as well as the result of predecessor studies, the trend and main process of forest dynamics are recognized.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 (ＡＤ1700–1998) 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%.

介绍美国景点英语精选作文篇 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 Ｓ

tates 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