中學(xué)生英語演講稿2分鐘-閱讀頁
2024-09-24 11:29本頁面
【正文】 starts with a TV camera. Some TV cameras are big and some are small. The cameras in TV studios are big. Camera operators roll the big cameras around on wheels. There are usually several big cameras in a TV studio. Cameras used outside a TV studio are smaller. TV camera crews take the smaller cameras to news and sports events.Some cameras send out live pictures to your TV set. Some cameras make videotapes that get played later on a television program.All TV cameras need electricity to work. A camera operator points the camera at a scene. The camera picks up light from the scene. It changes this light into an electric signal called the video signal. A microphone changes the sound of people talking or music playing into an electric signal called the audio signal.中學(xué)生英語演講稿2分鐘。演講稿是一種實用性比較強的文稿。在當下社會，演講稿與我們的生活息息相關(guān)，那么你有了解過英文演講稿嗎?以下是小編精心收集整理的關(guān)于中學(xué)生英語演講稿2分鐘，下面小編就和大家分享，來欣賞
規(guī)章制度相關(guān)推薦
鄂ICP備17016276號-1