文档介绍：想成为老师的英语演讲稿 [中学生英语演讲稿：我的老师]
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ladies and gentlemen。
i have had a lot of teachers in my school who have given me much help in my study。 for their help i will never forget them。 but today i am going to talk about a special teacher of mine。 this teacher is not a human being and its name is“computer”。 it has been teaching me a lot of knowledge and i appreciate it very much。
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? multimediahelps a lot in this aspect in recent years， and computer-based training has become a popular educational medium 。 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 ， animations ， sound and video， make the learning process easier through visualization。 animations can present many complex subjects dynamically， but human teachers can not do this on blackboards。 multimedia makes our study more lively and interesting。
for example， a cd-rom disk named “encarta encyclopedia” contains 650 mb information including images， graphics， music clips， video clips， animations ， texts， hotwords， and database search functi