你好，这个主要是演讲技巧的问题，也有准备不充分的原因。建议你在演讲之前将演讲稿写出来，出声朗读，多准备就可以了。不要紧张，你可以的，加油。

高中英语演讲稿加PPT

时间就是金钱(Time is money)
Today is May 16, 2009.There is less than a month before the college entrance examination. I still remember the day before the examination. I and you ever made great effort to realize a dream of entering a university. And now we are here.
But most freshmen are dissatisfied with the life in university in the first term, before I went to university, I viewed university as a freedom paradise where I can do anything I like. But when I get here. Everything turn to be out of my imagination. I have to do a lot of homework everyday just as in senior high school. Living condition is not as good as in my expectation, food here is far from being delicious. And that is what most freshmen complain about.
But I must say we should still enjoy the life in university because it is the most worthwhile in our life.
Firstly ,It is the time we begin to form our outlook of our life. We attend classes, go to the library, surf the Internet. All of these provide us with valuable knowledge and information.
Secondly university life is rich and colorful, without heavy task, we get more time to take a break develop some hobbies. these will surely make our life more wonderful.
Finally in university we can develop our social skills as well as knowledge and wisdom necessary for hunting a job. Small organizations in school can provide a variety of opportunities of leaderships as well as teamship. Take Students Union for example. It is a place where we can get our abilities trained. All of these prepare for our future.
Time is money, but money can not get back time. Four—years of college life is short in a person’s life. Do not waste time any more. Try to be confident and dynamic and try to make our university life more wonderful and meaningful. Believe that we can fly and we are sing in the sky.
今天是5月16日,在2009还有不到一个月前在大学入学考试。我仍然记得在考试前的一天。我和你所做出的巨大努力去实现梦想进入大学。现在我们都在这里。
但是大多数新生不满意生活在第一学期大学之前,我上大学时,我被作为一种自由大学的乐园,我可以做任何事,我喜欢。但是当我到达这里。一切转出我的想像力。我有很多作业要做日常就像在高中阶段。生活条件不如在我的期望,这儿的食物还远远不能很好吃。而且那就是大部分新生抱怨。
但是,我必须说,我们还是应该享受生活,在大学,因为它是最值得在我们的日常生活中。
首先,它是我们开始我们的人生。我们上课,去图书馆,上网。所有这些给我们提供了宝贵的知识和信息。
其次的大学生活是丰富多彩的,没有繁重的任务,我们有更多的时间来休息hobbies.这必将发展一些让我们的生活更加精彩。
最后在大学可以发展我们的社会技能和知识和智慧,找工作时所必需的。在学校的小的组织提供各种机会以及团队的领导。带学生联盟为例。这是一个地方,我们可以得到我们的技能训练。所有的这些准备我们的未来。
时间就是金钱,但金钱不能回来。Four-years大学的生命是短暂的,在一个人的生命。不要浪费时间了。试着自信和动力,努力使我们的大学生活更精彩,回味无穷。相信我们能飞,我们是在天空。

I love English
As everyone knows,English is very important today.It has been used everywhere in the world.It has become the most common language on Internet and for international trade. If we can speak English well,we will have more chance to succeed.Because more and more people have taken notice of it,the number of the people who go to learn English has increased at a high speed.
But for myself,I learn English not only because of its importance and its usefulness,but also because of my love for it.When I learn English, I can feel a different way of thinking which gives me more room to touch the world.When I read English novels,I can feel the pleasure from the book which is different from reading the translation.When I speak English, I can feel the confident from my words.When I write English,I can see the beauty which is not the same as our Chinese...
I love English,it gives me a colorful dream.I hope I can travel around the world one day. With my good English, I can make friends with many people from different contries.I can see many places of great intrests.I dream that I can go to London,because it is the birth place of English.
I also want to use my good English to introduce our great places to the English spoken people,I hope that they can love our country like us.
I know, Rome was not built in a day. I believe that after continuous hard study, one day I can speak English very well.
If you want to be loved, you should learn to love and be lovable. So I believe as I love English everyday , it will love me too.
I am sure that I will realize my dream one day!
Thank you!
亲爱的老师，同学们：
我很高兴可以在这个课堂上做一次演讲。这一次，我想谈谈英语。我的话题是我爱英语。
正如每个人所知，英语在今天十分重要。它已经被应用到世界的各个角落。它已经成为商业上最为通用的一门语言并广泛的用于国际贸易。如果我们能说好英语，我们就有更多的机会成功。因为越来越多的人注意到这一点，学英语的人数正在已很高的速度增长。
但是对我而言，我学英语不仅仅因为它的重要性以及它的实用性，更是因为我喜爱英语。当我学英语时，我可以体会到一种不同的思维方式，它可以给我更多接触世界的空间。当我读英语小说时，我能感受到不同于阅读翻译文的快乐。当我说英语时，我可以感到自信。当我写英语时，我能够感到不同于汉语的那种美……
我爱英语，它给了我一个色彩斑斓的梦。我希望有朝一日我可以畅游世界，用我流利的英语，我可以和世界各地的人交友。我能看到许多的名胜。我希望我能够到伦敦去，因为那里是英语的故乡。
我也希望用我流利的英语来将我们的名胜介绍给说英语的朋友，我希望他们可以像我们一样的爱我们的国家。
我知道，罗马不是一天筑成的。（成功需要日积月累。）我相信在持续不断的努力学习下，总有一天我可以拥有一口流利的英语。
如果你想被爱，你就应该学着去爱他人。所以我相信我对英语的爱定将换来它对我的爱。
我相信总有一天我会实现我的梦！
谢谢！