英语工业革命英语演讲稿.docx

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英语工业革命英语演讲稿.docx

英语工业革命英语演讲稿

【关键字】英语

工业革命英语演讲稿

篇一:

工业革命演讲稿

  Revolutionfirstbeganinthetextileindustry,andtextileindustrygetsthemainachievements.

  Thefirstinventionisflyingshuttlein1733,itishand-operatedmachinewhichincreasedthespeedofweaving.

  Anothergreatinventionisspinningjennyin1875.Itishome-basedmachinethatspunthread8timesfasterthanwhenspunbyhand.

  In1856,sewingmachinemakethespeedofsewinggreatlyincreased.

  Theyareflyingshuttleandspinningjenny.

  Thethreeachievementsintransportationaresteamboat,macadamizedandlocomotive.

篇二:

关于美国二战的英语演讲稿

  worldwar2

  briefintroduce:

  asweallknow,worldwar2,wasaglobalmilitaryconflict,lastingfrom1939

  to1945.today,ldliketogiveyouabriefintroduceaboutthiswar.worldwar2involvedmostofthecountryatthattime,includingallofthegreat

  powers,anditdividedinto2opposingmilitaryorganization:

theaxisandtheallies.now,letslookatpicture,thealliesmainlycontains:

america,thesoviet

  union,britainandchina,theaxiscontains:

german,italy,japanandsoon.then,letsknowabouttheleadersofmainlycountryduringthewar.

  1.adolfhitler:

thecorecharactersingermanyofworldwar2.in1939,heagainst

  polandwhichlaunchedthesecondworldwar

  4.roosevelt:

,althoughheisthedisabledperson,heisstillthegreatestleader

  ofusawhosparkedthefireofthewholecountrywithoneheartnewspirit.note1:

theversaillestreatywasregardedasthefuseofthewar.note2:

  nazi,thisnameisfullofattractive,butinfact,itisthesymbolofevil.reason:

  theoutbreakofwarhadlotsofcau(本文来自:

小草范文网:

工业革命英语演讲稿)ses,butasfarasimconcerned,themost

  importantreasonsarethat.inaword,duetotheseriouslyeconomiccrisis,the

  axiswenttothewayoffascist.theytriedtheirwholecountrypowerandresources

  todevelopthearmsandtoprepareforexpansion.inthemeantime,theaxiswerenotsatisfiedwiththeversaillestreatyandthey

  allwantedtocontrolthewholeworld.while,unfortunately,thealliesfacedtothe

  ambitionsoftheaxisnegativelyandtheywerebusydevelopingtheeconomic.so,after

  that,theworldwar2brokeout.process:

  ineuro.

  inseptember,1939,germanylaunchedalighteningattackonpolandwhichled

  britainandfrancedeclaredwarongermany2dayslater.afterthat,germany

  capturedfranceandsomeothersmallwesterneuropeancountries.then,on,germanyopeningofthesecondfrontandattacktheussr.

  1.leningraddefence:

inthenorth,thenorthernarmygroupsurroundedtheleningrad,itwas

  thesymbolofthecultureinthesoviet.despitegreatsuffering,however,the

  peopleofleningradrefusedtosurrender.whenfoodranout,peoplediedfrom

  hungeranddisease.finally,theredarmybrokethethree-yearsiegeofleningrad

  onjanuary15,1944.thiswaristhebloodiestbattlesinthehistoryofwarfare.

  2.thebattleofmoscow:

moscowisthecapitaloftheunionofsovietsocialistrepublics(ussr)andit

  isalsothelargestsovietcity.moscowwasregardedasthepoliticalcenter,sostalin

  orderedthatalltheredarmysoldiersshouldneverstepback.thisbattlelasted

  forabout6month,andendedwiththevictoryofussrin

  3.thebattleofstalingrad:

bythesummerof1942.inthesouth,thesouthernarmygrouppushedeastto

  stalingrad,agreatindustrialcity,itwastheeconomiccentreofthesoviet.this

  warwasamajorbattleofworldwarii.duringthisbattle,thesovietgiventhe

  germanyarmyaheavyblow.afterwards,thegermancanneverleadedoffanattack.

  soitstheturningpointsofthewar.inasian.

  japanattackedtopearlharborin1941,12,7.thenamericajoinedthewar.thebattleofsonghu:

intheasianbattlefield.chinaplayedaveryimportant

  role.shesufferedfromthemainattackofjapan,andshealsomadegreatsacrifice

  toantifascist.class2

  theturningpoints.石张磊7号normandylandings:

in1944,thesecondeuropeanfrontwasopened,britainand

  theuslandedonthebeachesofnormandy.itmeansgermanywilltrendtofailurein

  nearfuture.finallybattles.afterthealliesoccupiedberlin,in1945,5,8.germany

  surrendered.onaugust,1945,theusdropped2atombombsonjapan,finally,japanese

  surrendered.

  theworldwar2cametotheend.mythought:

inmyhumbleopinion,despitethenon,justtobehonest,the

  germanyarmywasthemostpowerfulforcesinthattime.butadolfhitlerhadmade

  3unforgivablemistakeswhichletgermanywenttofail.first,hedidnttryhisbesttobeatbritain,soheforcedtofightontwofronts

  whichletgermanyspentmoreresources.second,hedidntovercamethelenin

  ziegler,sogermanyarmycouldntsuccesstomeetwithfinland,thecountrywas

  attackedbythesovietin1939,andthepowerfulnorthernarmygroupcouldntgoto

  southtosurroundthesovietarmy.finally,themostimportantpointisthathitler

  adoptedapolicyofgenocide.duetothatreason,manyenemywasforcedtodolife

  anddeathstruggle,thoughtheywerereluctantandhatetofight.result:

  tag:

  thankyouforlistening.篇二:

专业英语演讲稿(stealthmaterial)stealthmaterialintroductionchapter1:

goodafternooneveryone!

today,iwillgiveyouapresentationabout

  thestealthmaterial.

  chapter2:

firstly,letslookatagroupofpictures.itisapieceofinvisibility

  cloak,whichwecanwearitfrombeingseenbyothers.maybeeveryoneofusallwant

  tohaveatryingoftheamazingthing.chapter3:

lookingatthepictures,howwonderfultheyare!

thisisthestealth

  materialthatiwanttointroducetoyoutoday.增加攻击性,获得最直接的军事效益。

因此,它在飞机、主战坦克、舰船、箭弹上应用,

  将成为国防高技术的重要组成部分。

)chapter6:

next,thisistheclassificationofstealthmaterial.accordingtothe

  applicationofstealthmaterialcanbedividedintostealthcoatingmaterial(隐身

  涂层材料)andstealthstructurematerials(隐身结构材料)。

also,itcanbeclassified

  aslaserstealth(激光隐身)、sound(声)、radar(雷达)、infrared(红外)、visiblelight

  (可见光)accordingtothespectrum(频谱)ofstealthmaterial。

chapter7:

today,wefocusonseveralprinciplesofstealthmaterial.firstof

  all,welearnaboutradarabsorbingmaterials.theworkingprincipleoftheradarcan

  classifiedasreflection,transmissionandabsorption.refle-ctingisthatradar

  usingthereflectionwavetodetecttheobject(雷达利用波的反射来探测物体).but,how

  tomakewavesdonotreturnback?

------absorbedtheincidentwave(把入射的波吸

  收掉).

  chapter8:

then,its’stealthfeaturesrequirehimabletoabsorborthroughthe

  radarwave,decreaseasfaraspossibletodetectthereflectedwave.theradarstealth

  materialisgivenprioritytowithabsorbingmaterial.accordingtotheapplicationofstealthmaterialcanbedividedintostealth

  coatingmaterial(隐身涂层材料)andstealthstructurematerials(隐身结构材料)。

chapter9:

let’sintroducethecoatingabsorbingmaterials,firstly,typecoating

  absorbingmaterialisonthetargetsurfacecoatedwithalayeror涂敷型吸波材料是在目标表面涂覆了一层或多层吸波材料,因此对它的承载性没有特殊

  要求。

  这种材料使用起来方便快捷,在军用飞机、坦克、军舰上都有很广泛的应用。

组成:

基体材料、吸波剂(最关键)以及其它一些助剂组成。

按照吸波剂的化学成分可分为无机吸波剂(铁氧体、金属以及陶瓷),有机高分子吸波剂

  (导电高聚物和视黄基席夫碱),手性吸波剂和智能吸波剂。

chapter10:

anothertypeofstealthmaterialisstructuralabsorbingmaterials(结

  构型吸波材料).firstly,akindofmulti-functional一种多功能复合材料,具有承载和雷达隐身的双重功能。

由于需要承载,因此对这种材料的要求非常高。

组成:

基体材料(承载)和吸波剂复合。

基体材料主要是高分子类的一些材料实际应用:

洛克威尔国际公司用石墨/环氧复合材料和由玻璃布蒙皮、石墨、炭黑、橡

  胶等组成的吸收层和蜂窝结构制造了f-117飞机的整套罩和进气口唇部等。

chapter11:

infraredstealthmaterials(红外隐身材料),theworkingprincipleof

  infraredstealthmaterialsisusingthetargetfromtheinfraredtofind,identify

  andtrackthetarget.usuallybackgroundtemperatureislow,lessradiationenergy.利用目标发出的红外线来发现、识别和跟踪目标。

通常背景的温度较低,辐射能量较小chapter12:

now,welearnaboutlaserstealthmaterial.ininfraredwave,

  especiallyinthenearinfraredwavehasstrongabsorptionabilityorshieldingeffect,

  makethedifferenceoftargetandenvironment.byreducingthetargetsemissivity

  andtemperaturetoachieveinfraredstealth.隐身要求:

对红外波,特别是近红外波有

  强吸收能力或屏蔽作用,使目标与环境的差别小。

通过降低目标的发射率或温度来达到红外隐

  身目的。

  theworkingprincipleoftheradarcanclassifiedaslaserstealthprocessissimilarwiththeprocessofradarstealth,mainisto

  reducereflectioncoefficientonthesurfaceofthetarget,reducetheechopower

  ofthelaserdetector.inaddition,alsocanbeusedonengineeringtransmissionmaterial,light

  material,photochromicmaterial,variablepolarization,etc.

  激光也可作为雷达使用,常被称为激光雷达。

与普通微波雷达相比,具有更高的分辨力、

  抗干扰能力和隐蔽性。

  激光隐身过程与雷达隐身过程相类似,主要是降低目标表面的反射系数,减小激光探测

  器的回波功率。

  激光吸收染料,包括菁类染料、钛菁类染料、金属络合物染料、游离基型染料、芳甲烷

  型染料等。

  此外,工程上还可采用透射材料、导光材料、光致变色材料、变偏振材料等。

chapter14:

theapplicationofstealthmaterials--------militaryscience。

隐身

  材料的应用

  duringworldwarii:

mosquitobomber(first)inthelate1950s,therepresentativeisamericasu-2reconnaissanceaircraftinthe1960s,withthelockheeddesignofsr-71blackbirdismosttypical.二战期间:

蚊式轰炸机(最早)20世纪50年代末,代表就是美国的u-2侦察机20世纪60年代,以美国洛克希德公司设计的sr-71黑鸟最为典型。

10年后,代表洛克希德的f-117a隐形战斗机和诺斯罗普公司的b-2a隐形轰炸机。

  chapter18:

theapplicationofstealthmaterials--------forciviluse可建隐形罩

  以避免障碍物阻挡手机信号

  可在炼油厂上建一个隐形罩,使它不影响海边的美丽风景。

医生手术戴隐形手套,手会变得透明,不会挡住需要手术的部位篇三:

二战后英美对比

  英语论文(内容为英语)摘要

  实力的消长,国家的兴衰不可避免,国际关系的格局和中心舞台也就随之改变。

二战后,

  西欧国家百废待兴。

法西斯德国、日本成为战败国,法国和英国受到严重削弱,欧洲的政治

  中心地位基本丧失。

美国大发战争横财,经济、军事实力膨胀,成为资本主义世界的头号强

  国,资本主义世界由“英国时代”走进“美国世纪”。

关键词:

英国美国崛起工业革命二战霸权主义abstract

  keywords:

american,britain,rise,theindustrialrevolution,worldwar

  ii,hegemonism1themaintopicofthethesisbeforetheworldwarii,worldhegemonyhasbelongedtothebritain,butafter

  theworldwarii,thebritishworlddominationwasreplacedbytheunitedstates,

  thisiswhy?

  2thereasons

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