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标签:原创  来源:互联网  作者:本站整理  发布时间:2010-05-30  ★★★加入收藏〗〖手机版
摘要:关于飞机发展史的英语作文,好学英文网原创英语演讲稿,希望大家参考。 Historical background of aircraft.…

关于飞机发展史的英语作文(好学英文网原创,作者:靳秀青),转载请注明出处,否则追究法律责任!
Good Morning everyone:
(I’m the leader of the seventh group. My name is Jinxiuqing.
The topic of our group is” Overview of aircraft”)(1)
(The main contents include the following five parts: the historical background, production principles and processes, the modern and future aircraft.)(2)
(Firstly, let us enter the first part: Historical background of aircraft)(3)

Turning to the history of the aircraft, We have to refer to the Wright brothers. Since 1903, The Wright brothers made the first powered flight.
The left picture is Joint photo of the Wright brothers. and the right of the map is the first aircraft in history made by the Wright brothers. It looks very simple, but it is a milestone in the history of the aircraft.

Then let me just briefly mention that the several key points of the plane development :pioneers  the birth and the first World War and the second World War.
1.First and foremost, Let me briefly explain Present the Pioneers of flight - airship
In 1852, French engineer Giffard carried out the research about the airship. In the same year ‘s September, Giffard tried the first flight and succeeded.
To the 1898, gasoline engine piston-powered rigid airship was born.
The aircraft is very rough in this period, it even can not be called plane. however, it provide a much needed basis for the emergence of the aircraft .
2. The birth of the first aircraft(Milestone in the history of the aircraft)
Mentioned here, I must mention the Wright brothers again, In 1903, They successfully produced the first sustained and controlled, heavier-than-air, powered flight. This magnificent feat opened a new page for future development of the aircraft. From hxw.red.
The first world war (Aircraft was first used as a weapon of war)
I have to say that human suffered huge losses in this war. Part of reason is the role of the aircraft, But in fact, just because of this, the aircraft had a great development in this war .
After the war, Thinking of air combat began lingering in people's minds. The first fighters, attack planes, seaplanes come into being.
4. The Second World War(Joozone Note:After the baptism of the First World War, Aircraft as a weapon of war be applied once again)
In this war, more prominent role in the aircraft, the aircraft almost decided the outcome of the war.
During this period, The first aircraft equipped with jet engine aircraft - Hayinkeer 178 aircraft (Germany produced ) Successful listing.
(Finally, let us briefly look at the spectrum of China's military aircraft family, We believe that China is a family name can not be overcome, We also look forward to China's further development in the field of aircraft.)
Said here, my speech is also the end, Thank you For your patient listening.Thank you.hxw.red

好学英文网提示:关于飞机发展史的英语作文(好学英文网原创,作者:靳秀青),转载请注明出处,否则追究法律责任!

hxw.red

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