world war 2brief introduce:as we all know ,world war 2,was a global military conflict ,lasting from 1939to 1945. today , l d like to give you a brief introduce about this war. world war 2 involved most of the country at that time , including all of the greatpowers, and it divided into 2 opposing military organization :the axis and the allies. now, let s look at picture , the allies mainly contains : america, the sovietunion , britain and china , the axis contains : german , italy , japan and so on . then ,lets know about the leaders of mainly country during the war.1.adolf hitler: the core characters in germany of world war2.in 1939,he againstpoland which launched the second world war 4. roosevelt：，although he is the disabled person , he is still the greatest leaderof usa who sparked the fire of the whole country with one heart new spirit. note1： the versailles treaty was regarded as the fuse of the war. note2:nazi ,this name is full of attractive， but in fact ,it is the symbol of evil . reason:the outbreak of war had lots of causes , but as far as im concerned , the mostimportant reasons are that. in a word, due to the seriously economic crisis , theaxis went to the way of fascist. they tried their whole country power and resourcesto develop the arms and to prepare for expansion. in the meantime ,the axis were not satisfied with the versailles treaty and theyall wanted to control the whole world. while ,unfortunately ,the allies faced to theambitions of the axis negatively and they were busy developing the economic . so ,afterthat ,the world war 2 broke out. process:in euro.in september,1939,germany launched a lightening attack on poland which ledbritain and france declared war on germany 2 days later. after that , germanycaptured france and some other small western european countries. then ,on 1941.6.22, germany opening of the second front and attack the ussr.1. leningrad defence :in the north, the northern army group surrounded the leningrad ,it wasthe symbol of the culture in the soviet . despite great suffering, however, thepeople of leningrad refused to surrender. when food ran out, people died fromhunger and disease. finally ,the red army broke the three-year siege of leningradon january 15, 1944. this war is the bloodiest battles in the history of warfare.2.the battle of moscow :moscow is the capital of the union of soviet socialist republics (ussr) and itis also the largest soviet city. moscow was regarded as the political center ,so stalinordered that all the red army soldiers should never step back. this battle lastedfor about 6 month, and ended with the victory of ussr in 1942.01.07.3.the battle of stalingrad ：by the summer of 1942. in the south, the southern army group pushed east tostalingrad, a great industrial city, it was the economic centre of the soviet .thiswar was a major battle of world war ii . during this battle, the soviet given thegermany army a heavy blow .afterwards, the german can never leaded off an attack.so its the turning points of the war. in asian.japan attacked to pearl harbor in 1941,12,7.then america joined the war. the battle of songhu ：in the asian battlefield .china played a very importantrole .she suffered from the main attack of japan, and she also made great sacrificeto anti fascist. class2the turning points. 石张磊 7号normandy landings : in 1944, the second european front was opened, britain andthe us landed on the beaches of normandy. it means germany will trend to failure innear future. finally battles. after the allies occupied berlin, in 1945,5,8. germanysurrendered. on august,1945 , the us dropped 2 atom bombs on japan ,finally ,japanesesurrendered .the world war 2 came to the end. my thought: in my humble opinion ,despite the non ，just to be honest ,thegermany army was the most powerful forces in that time .but adolf hitler had made3 unforgivable mistakes which let germany went to fail. first ,he didnt try his best to beat britain , so he forced to fight on two frontswhich let germany spent more resources . second ,he didnt overcame the leninziegler ,so germany army couldnt success to meet with finland, the country wasattacked by the soviet in 1939, and the powerful northern army group couldnt go tosouth to surround the soviet army .finally ,the most important point is that hitleradopted a policy of genocide .due to that reason , many enemy was forced to do lifeand death struggle ,though they were reluctant and hate to fight. result:tag:thank you for listening.篇二：专业英语演讲稿(stealth material) stealth material introduction chapter1：good afternoon everyone! today, i will give you a presentation aboutthe stealth material.chapter2：firstly, lets look at a group of pictures. it is a piece of invisibilitycloak, which we can wear it from being seen by others. maybe everyone of us all wantto have a trying of the amazing thing. chapter3：looking at the pictures, how wonderful they are! this is the stealthmaterial that i want to introduce to you today.增加攻击性，获得最直接的军事效益。