（100分）求大学英语课前演讲的PPT~什么主题都行 5分钟左右...题材最好新鲜点的

没经历过这种课前演讲，不过还是自己做效果才好

给你几个内容,自己往里粘吧
1.青春 youth
Teachers and fellow students, Good afternoon!
I’m very glad to stand here and give you a short speech. today my topic is “youth”. I hope you will like it , and found the importance in your youth so that more cherish it.
First I want to ask you some questions:
1、 Do you know what is youth?
2、 How do you master your youth?
Youth
Youth is not a time of life, it is a state of mind ; it is not rosy cheeks , red lips and supple knees, it is a matter of the emotions : it is the freshness ; it is the freshness of the deep springs of life .
Youth means a temperamental predominance of courage over timidity of the appetite , for adventure over the love of ease. This often exists in a man of 60 more than a boy of 20 . Nobody grows old merely by a number of years . We grow old by deserting our ideals.
Years wrinkle the skin , but to give up enthusiasm wrinkles the soul . Worry , fear , self –distrust bows the heart and turns the spirit back to dust .
Whether 60 of 16 , there is in every human being ‘s heart the lure of wonders, the unfailing childlike appetite of what’s next and the joy of the game of living . In the center of your heart and my heart there’s a wireless station : so long as it receives messages of beauty , hope ,cheer, courage and power from men and from the infinite, so long as you are young .
When the aerials are down , and your spirit is covered with snows of cynicism and the ice of pessimism, then you are grown old ,even at 20 , but as long as your aerials are up ,to catch waves of optimism , there is hope you may die young at 80.
Thank you!
青春
青春不是指岁月,而是指心态.粉嫩的脸,红润的唇,矫健的膝并不是青春.青春表现在意志的坚强与懦弱.想象的丰富与苍白、情感的充沛与贫乏等方面.青春是生命深处清泉的喷涌.
青春是追求.只有当勇气盖过怯弱、进取压倒苟安之时,青春才存在.果如此,则60见之长者比20岁之少年更具青春活力.仅仅岁月的流逝并不能使他们衰老.而一旦抛弃理想和信念,则垂垂老也.
岁月只能使皮肤起皱.而一旦丧失生活的激情,则连灵魂枯老,使人生枯如死水,毫无活力.
60岁长者也好,16岁少年也罢,每个人的内心深处都渴望奇迹,都如孩子一般眨着期待的双眼,期待着下一次,期待着生活的情趣,你我灵魂深处都有一座无线电中转站------只有你我年轻,则总能听到希望的呼唤,总能发出喜悦的欢呼,总能传达勇气的讯号,总能表现出青春的活力………
一旦青春的天线倒下,你的灵魂即为玩世不恭之雪、悲观厌世之冰覆盖；即使你年方20.其实你已垂垂老也.而只要你青春的天线高高耸起,就可以随时接收到乐观的电波-----即使你年过八旬,行将就木,而你却仍然拥有青春,你仍然年轻.
2.珍爱生命之水 Cherish the water
My dear Teachers,fellow students and friends： Good afternoon．
I’m very glad to stand here and give you a short speech. today my topic is “Cherish the water ”. I hope you will like it .
As we all know, the earth is a planet almost covered by water,and it is water made every thing on the earth lively．Water is also one of the important part of our environment．Though,is there really so much water for us to clean,to produce many things,to play with? how much water are there on the earth then?
Most of the water is in the oceans or locked away as ice．The largest volumes of fresh water are stored underground as groundwater,imagine there is only one barrel of water in the world,then there is only a spoon of it on the land,and the water we can use is only a drop of it．Now I have to remind all of you here that the single drop of water is never as Clean as before,it has been polluted severely by our human beings．
There is a very beautiful river in Paris．It is the Seine,it runs across the City,people drink coffee, chat on the bank in the day,at night,they enjoy the beautiful scenery in the boat,songs from the river fly into the Sky made the river more attractive, the Seine is a famous symbol of France；on the west coast of pacific ocean there lies the modern City Shanghai,another river which used to be a very important transportation route runs through the center of the city,people respected and regard it as"mother"．It is the"suzhou river,but l believe that few of you would sit beside it,people will be scattered by the terrible smell of water when walk by．I have to say it is extremely dirty! And we all know that a lot of beautiful rivers in the world also are Sharing the same fate with suzhou river． Who is the devil? I can't help asking．
Many human activities and their by-products have the potential to pollute water. Please have a look along the banks of the river, large and small industrial enterprises discharge dirty
water, tons of garbage were thrown into the river, the water contained so much that it can't clean itself. Compared with the dramatic development in many sides of Shanghai, the suzhou river has become a black point of the appearance of city.
Fortunately, the government has control the situation now, we are happy to see some parts of the river has become clean again, and we even can find fish sometime.
The unique earth is the only planet full of lives, the water is just like the blood in the active body, protecting water is saving ourselves. Not to waste a single drop of water, otherwise, the only drop of water we could keep in the future would be our tear!
My dear friends, mankind still faces a GREat difficulty in solving the problems of the environment and development, and there is a grand task to perform and along way to go. The middle school students in China will always cooperate with the young people of the world to protect the environment.
The future is ours to build!
Thanks for listening.
Fudan Middle School Shanghai
3. 我的梦想 My dream
My dear Teachers,fellow students and friends： Good afternoon．
I’m very glad to stand here and give you a short speech. today my topic is “My dream ”. I hope you will like it .
Dreams are the wind for our sails on the ocean. Dreams kindle a flame to illuminate our dark roads. Dreams are the armor for our fragile hearts. Martin Luther King had a dream — it was to have justice for all people. Lincoln had a dream — it was to set the slaves free. They sought their dreams and ultimately made them come true. When I was young, I saw a dog one day. I threw a stone at it just for fun. Then it fell down and looked very weak. At that moment, I was surprised to notice it was pregnant. I can’t remember what happened next, but there’s one thing I know: that I felt guilty. It was the first time that I found life could so easily pass away. At that time, I had a dream, which was to help those people who needed help. There are too many wars and disasters. About 16,000 people have died in the Iraq War and one child dies every eight seconds in Africa because of starvation. I have dreams, you have dreams and they have dreams too. We should help them. We should save their lives so that they can pursue their own dreams. Just like the lyric of a song says, “We are the ones who make a brighter day so let’s start giving.” Well, that’s my dream, a simple but meaningful one.