广岛核爆炸ppt

1、Atomic bombings of HiroshimaContents: Background process Impact Why was Hiroshima chosen as the target?2.Background Following a firebombing campaign that destroyed many Japanese cities, the Allies prepared for a costly invasion of Japan. The war in Europe ended when Nazi Germany signed its instrumen

2、t of surrender on 8 May, but the Pacific War continued. Together with the United Kingdom and the Republic of China, the United States called for a surrender of Japan in the Potsdam Declaration on 26 July 1945, threatening Japan with prompt and utter destruction. The Japanese government ignored this

3、ultimatum. American airmen dropped Little Boy on the city of Hiroshima on 6 August 1945, followed by Fat Man over Nagasaki on 9 August.The Atomic bombing in HiroshimaThe damage that nuclear explosion brought烧灼伤原子弹引发的大量热线和放射线，爆心1千米以内的人，均受到了5度的重度烧伤，表皮全部碳化。热线的影响范围是3.5千米以内。此范围内的木质房屋大都自燃，更是造成了二次烧伤。爆心1千米以

4、内而又在屋外的人，90%在7天内死亡。外伤冲击波本身会对被害者造成损伤；冲击波毁坏的建筑物的碎片以高速冲向被害者，也会造成二次外伤。有人的眼球和内脏甚至直接从体内飞了出去，惨不目睹。放射能症原子弹爆炸发射出的大量放射线，使大量被害者得了急性放射能症。症状是恶心、呕吐、食欲不振、腹泻、发热、脱毛症、皮下出血等等。也有人因此得了白血病。被害者大部分在一个月内死亡。二次放射能症随后赶来救援的人，因为防护措施不到位，也有人得了放射能症，不过数量较少。受黑雨(核辐射尘和云中的水汽混合在一起，形成了黑色的雨落在广岛一带 )影响的人，也得了二次放射能症。核辐射染上核辐射，会得原子病，失明、脱发、肌体萎缩，最

5、后痛苦地死去。而且受辐射的人很难与健康的人结婚，他们结婚后出生的婴儿，全部智力迟钝。甚至出现畸形，这样，侥幸大难不死的人，也有无尽的痛苦与他们终生为伴。 Specific performance Deaths Victims of Hiroshima The bombing have a great impact on Japanese people, especially those who survived. They have to suffer from radiation sickness for ever. It seems that Japanese people have re

6、covered from the bombing, however, there are still something that they cannot forget.Injuries (1)Injuries(2)RuinsWhy was Hiroshima chosen as the target?1.At the time of its bombing, Hiroshima was a city of both industrial and military significance. A number of military camps were located nearby, inc

7、luding the headquarters of Field Marshal Shunroku Hatas 2nd General Army which commanded the defense of all southern Japan.(广岛是日本重要的工业及军事中心，有一些军事设施就位于广岛附近，包含负责防御日本南部的畑俊六第二陆军总部 )2.Hiroshima was a minor supply and logistics base for the Japanese military but it also had large depots of military suppli

8、es and was a key center for shipping.(广岛是一个小型的日军补给及物流基地，也是一个军队的通讯、存储中心与集结区域 )3.The center of the city contained several reinforced concrete buildings and lighter structures. Outside the center, the area was congested by a dense collection of small wooden workshops set among Japanese houses.(市中心有几个钢筋混凝土建筑物及较松散的建筑物，市中心以外则是拥挤的日本木造房屋-容易受到火灾破坏)4.The population