第一篇：數學專業相關的英語演講文稿

Good morning，ladies and gentlemen, my name is, I’m form the department of mathematics.In the past two rounds, I’ve showed another side of mathematics to you.Today.as is shown on the screen, this topic will be continued.But don’t worry, it’s still very interesting and practical.No Profound theories, no Constant yawning

Firstly, let’s look at the screen.This is a piece of Ellipsoidal m&m’s chocolate，and this is a spherical one.If I give you a big box, and tell you that you can take the whole box of chocolate, in order to take the most, how would you fill the box? In fact, this is a math problem.And it has been proved that in the process of randomly accumulation, the amount of things connected by the ellipsoid is far more than the sphere, so you can get more chocolate by chosing the Ellipsoidal m&m’s.Nowadays, this conclusion has been used to make the High-density ceramic and undoubtelly, this theory has a high practical value.Ok ,my next question is that can you peel the pineapples?

Pineapple is tasted, but peeling it is really a disturbing thing.Some people prefer to peel it from the top to the bottom, while in most cases, we see people peel it diagonally.Is it just for good-looking or convenience？clearly not！Then for what? Actually, it’s an easy application of a math theory.In the right picture, the diagonal distance is the shortest.So if we peel it in this way ,we can lose the least flesh.And next, Look at this picture.This is a cooling tower of the power station.And you may have seen it while taking the train.It’s used to cool the hot air generated in the power generation process.But why does it look like this? It’s so ugly!Why not a cylinder or other shapes? Well, according to the Mathematical proof, Hyperboloid of one sheet turns out to have the largest Surface area, hence if we design the profile of the cooling tower like this, the radiating area will be larger.How to invest?

You must have heard the old saying that don’t put the eggs in one basket.It’s especially popular in the stock market.You know what, this famous sentence corresponds to an important principle_ the maximum entropy principle in mathematics.to put it simply, the principle tells us to Retain all of the uncertainty to minimize the risk.That is ,if you don’t know the Stock market well, you’d better invest As decentralized as possible.Here, a world famous Investor called Jim Rogers comes into my mind, Buffett used to call him the best Prophet in the world.Rogers told us that Sometimes，it’s sensible for us to put the eggs in one basket!and that Distributing your investment to 5 companies may earn more than 50 companies.Does that mean it contradicts the mathematical principle? Of course not, in fact, As a blind Investor that don’t know anything about the Investment market , it’s sensible for you to follow the principle.However, Rogers stressed that lucky is only for the prepared man!If you know most of the companies well, then sparing your money to the proper ones is your best choice!And this is the knowledge of another mathematical branch called Game Theory.Nowadays, this branch is playing key roles in the area of investment.Lastly, let’s relax and enjoy a story of mathematics.Look at this, this used to be the logo of the apple company.And it had been used until 1998.Regarding the meaning of the logo, there are varoius explanations, one is that It’s a homage to Alan Turing.Who is Alan Turing？and why did they use the incomplete colorful apple to Commemorate him?

Alan Turing is a great British mathematican, later, he isknown as the father of computer science.He is a gay, but at that time, this can’t be accepted by the people, all kinds of humiliation came to him.People even wanted to change Turing into a woman.Finally, He committed suicide by biting into a Toxic apple.You may noticed that the apple logo have six colors, in fact ,we usually use six-color rainbow to represent the Homosexuality.And this further proved the statement.Ok, to conclude, mathematics is mysterious, the charm of it is infinite.It’s like a girl full of stories, and you need to spend your whole life to understand her.Try to fall in love with her, you’ll find a different mathematics, grasp her, you’ll have a bright future!

第二篇：英語演講PPT文稿

Hello, everybody!With the development of scientific technology, our life has become the most convenient than ever before.It is not deniable that we are in the era filled with digital product.For example, we put our photos in digital cameras, we store our assignments and documents in U-disks, and we place our favorite songs in MP3 player.They are all connected and available through computers.Computers are adequately used around the world nowadays, especially college students, but we also should know that computers are overused.People spend so much time working on it, which leads to series of bad effects.I’ve been interested in the bad effects of using computers too much for quite a long time.I’ve searched on Internet and looked up related books in library on this issue.So today I will persuade you to stop overusing computers for 3 reasons.First, it will do harm to your health.Second, it is a waste of time.And third, it will make you lose some of your abilities.First, it will do harm to your health.There are 4 problems at least.According to Wendy Ghannam and Mats Gyllenberg, specialists of computers, the low-energy X-ray and low-frequency electric radiations can cause the imbalance of centered-nerve system.This will cause headache, sleeplessness and other illness.It is the first problem.And the second problem is Carpal Tunnel Syndrome.According to Tammy Crouch.It is nerve damage that results from the repetitive hand motions with constant typing.The symptoms are intense pain and lessened motor control in the wrists and hands.The third one is eyestrain and subsequent vision.According to Irvin E.Houck Center for Information Technology, they result from sitting too close or too far from a computer screen.The forth problem is the pain of body, including muscle stress and back pain.Muscle stress results from extended periods of computer use without breaks.Back pain usually comes about because the computer users don’t sit properly when working.So now that we’ve known the reasons that computers do have harm to our body and health, we move on to my second point------it is a waste of time.I’ve done a research on 51 students in English department of our school.I found on average, that only 1/6 of their time of using computer is learning, such as looking for information doing homework.The rest 5/6 is spent on chatting on line, playing computer games or searching for the meaningless websites or other things.I’ve read in the China Daily in my freshman year that a mother had to lock the computer because her son overused computer and caused the declination of his grade.So most of the people, especially young people lack the self-controlled ability, and make it become inevitable.But it hasn’t over yet.Which brings me to my third point that overusing computer make you lose some of your abilities.You are likely to get lazy and use pen less than ever after you’ve gotten a computer.According to professional women, a published magazine in China claimed that overusing computers might cause reduce of brain function and therefore recession of memory.Second, your handwriting will become worse because of lack use of your pen.Third, probably you will lose the ability of controlling the temper.A survey held by Concord Information Corporation showed that 10% of their customers would act in violence simply due to problems of computer or Internet if they have been working on it for a long time.They couldn’t help breaking the screens, crashing keyboards or mouse when their PCs went wrong.In conclusion, let me summarize my 3 points.First, I told you that overusing computers do great harm on human bodies.Second, it is a waste of time.Third, it makes you lose some of your abilities.So overusing computers is really harmful.In closing, I want to declare one thing, that is: I’m not asking you not to use computers anymore.We have to use it, because it is necessary, a need, a must, for every one of us.But when we use it, we’d better ask ourselves, whether I use it properly, whether I overuse it.Thank you.

第三篇：英語演講文稿

My favorite cities Hi everyone!I’m Zeng Yubin.I am a student in class ten grade one.It’s my honor to stand here and give you speech.Today I world like to talk something about Beijing.Beijing is the capital of China.It’s also of the most popular cities in China.It has a long history and traditional culture.If you want to have a trip.I suggest you go to Beijing.There are many places of historic interest :The Great Wall ,The Palace museum The Summer Palace and Tiananmen Square.Tiananmen Square is very beautiful and big.It’s the largest square in Asia.The Great Wall is one of the world's great wonders.It’s is an artificial object that can be seen on the moon.All the work is done by hand.We all know China has a saying:The Great Wall is not a good man.Mane foreign tourists like to come to Beijing to experience Chinese culture.And they also like to eat Beijing roast duck.It take very delicious.I love Beijing China,and you.OK.That’s all.Thank for listening.我最喜歡的城市

大家好!我是曾煜彬。我是110班的一名學生。我很榮幸能站在這里給你們演講。今天我想談談北京的事情。北京是中國的首都。它也是中國最受歡迎的城市。它有著悠久的歷史和傳統文化。

如果你想去旅行。我建議你去北京。這里有許多名勝古跡:長城、故宮、頤和園和天安門廣場。

天安門廣場非常漂亮，非常大。它是亞洲最大的廣場。中國的長城是世界的奇跡之一。

長城是世界上，八大奇跡之一。它是一個可以在月球上看見的人造物體。所有的工作都是手工完成的。我們都知道中國有句話:不到長城非好漢。

外國游客喜歡來北京體驗中國文化。而且他們也喜歡吃北京烤鴨。它非常美味。我愛北京中國，你喜歡嗎。就這些了。謝謝收聽。

第四篇：關于食品安全問題的英語演講文稿

Ladies and Gentleman, as I stand here making speech with eyes on Unicom CUP.I naturally fell so excited to express my thoughts.I used to be naive, grow with age, I become matured.After my long time of reflection, I find this is a strange and confusing age, and there are so many paradoxes in our time that I think many people share this view.For instance: We have bigger houses and smaller families;more conveniences, but less time;we have more degrees ,but less common senses;more knowledge ,but less judgment;more experts ,but more problems;more medicine, but less wellness.Similarly, Nowadays，wherever we turn our gaze，we can see different types of food that are easier to prepare。For instance，we can buy frozen foods in a supermarket and just prepare it in a couple of minutes，whereas before it could have taken us maybe hours to prepare this kind of meals。I would accept that this so－called improvement has changed our lives, but with the development of Food variety, some Food safety issues have followed.In China there is an old saying: Bread is the staff of life.have been disclosed on various media.The problem of food security has become a hot button across society.The prevalence of food insecurity has greatly impacted public health, as for “Stained bread”” Melamine milk” and ” Tonyred eggs”.There are a couple of driving forces, I would argue, behind this undesirable tide.Firstly, the most important reason I think is that profits drive many food producers to commit illegal things.In the course of the rapid economic evolution, Some laws and regulations about food security are not perfect.Then, it gives these unscrupulous merchant a handle to gain money at the expense of public health.Secondly, In order to increase their revenue, more and more farmers increase yield through the pesticide.The overuse of agricultural pesticide has resulted in the degradation of food quality.Furthermore, some food producers inject hormones into domestic animals so as to make them grow more quickly and thus they can turn in more profit.As a result, people’s health has been seriously disturbed.Faced with the food security problem emerges one after another incessantly.The relevant government departments must strengthen food safety legislation as soon as possible, and strongly punish criminal for food safety.Then, we can also use the experiences of developed countries, discard the crude.What is more, as the parties, we, customers should promote food safety knowledge to rise our self-protection.What can we do? Simply, we can learn some essential common sense about safety food, and learn to recognize the unhealthy food by ourselves.we must always remember, DO not covet petty gain, because the food price is stable in normal situation.As Confucius instructed, it is better late than never.I am deeply convinced that we can overcome all difficulties with the efforts of all of us.The age of healthy theme will surely come up.So，this is my oral presentation.Thank you for your

listening!

第五篇：地質工程專業英語演講

1、地質工程是研究什么的？

What is the geological engineering？

Geological engineering is a science, about relationship between engineering and geological body.It includes foundation engineering, geological disaster prevention, geotechnical engineering, survey and design and so on.Engineering usually refers to the upper-work.The Geologic body includs foundation and groundwork.But the upper-warks is under the influence of geologic hazard.2、什么是地質災害？重點介紹滑坡？

Geological disasters is including landslide and mud-rock flow.(泥石流)

Because time is short, today I introduces landslide mainly.3、滑坡的危害？

Landslide hazard is mainly aimed at engineering and residential areas It destroys residential area, highway and railway.Damaged roads and Cause casualties4、滑坡的形成機理？

This is a picture of forming theory.5、滑坡的防治Control methods

The construction should build against the direction of rock stratum.Before building by the lake or reservoir（水庫）, We must do engineering treatmentWhen necessary, artificial reforming（人工處理）is conducted to sliding surface.Do reinforcement at the bottom of the landslide.Filling in the cracks of the landslide timely.