名人英语演讲稿( 四 )

with the development of modern science and technology, computers are widely used in every teritories including education. how can a computer be my teacher? how does a computer teach me? multimedia(多媒体)helps a lot in this aspect in recent years, and computer-based training (cbt) has become a popular educational medium (手段). even before the multimedia come up, many different learning systems appeared, using the components and techniques we now associate with the term “multimedia”. multimedia components, such as graphics (动画) , animations , sound and video, make the learning process easier through visualization. animations can present many comple_ subjects dynamically, but human teachers can not do this on blackboards. multimedia makes our study more lively and interesting. for e_ample, a cd-rom disk named “encarta encyclopedia” contains 650 mb information including images, graphics, music clips, video clips, animations , te_ts, hotwords, and database search functions. fields involved includes physical
sciences, performance arts, social sciences, politics, military, education and so on. when pressing a button, i can hear american president clinton's speech clip. i may enjoy playing all kinds of musical instruments in the world. i can also see the animation of many physical phenomena. this makes physical concept to be understood deeply. the audio features of multimedia can greatly help me learning foreign languages. with its speech output capabilities, i'm no longer dependent on an instructor for proper pronunciation.
how can i interact with a computer? there are many ways, including keyboard, mouse pointer, and touch screen. i often use a keyboard. when i press right keys, i can see and hear whatever i want. information world is at my fingertip. i wish that true speech input-output system would be invented one day.
as teachers, computers have a lot of virtues： they are positive, they have good memories and never lose any information stored in them. they have much knowledge in every field. they can let out all kinds of sounds, and can also improve the efficiency of our study. for e_ample, if i want to, i can skip some chapters so that i can study at my own pace.
although computers will never take the place of human teachers, they are welcomed by more and more learners. computers will continue to evolve(发展)with the aid of modern technologies. computers are so powerful, helpful and important that everybody needs it, especially in the future! i love my computer teacher!

名人英语演讲稿

Dstinguished judges, teachers, dear friends:
Hello, everyone! My name is cheng _iang yan , I am a junior student come from life science institution .Today, I am very glad to stand here and share with you my most sincere speech‘Flying youth, master our future!’
Life is a process of growing up. Saying goodbye to childhood, we step into another important time of life in the pace of young, facing new situations, dealing with different problems.....
However, who can really say what the youth is ? A period of time? A belief?An attitude to life? Or anything else? actually, everyone has his ownunderstanding of young, it is a period of time of beauty and wonders, only after you have e_perienced the sour , sweet ,bitter and salty, can you really become a person of significance.