radio
［误］ There are two radioes in the classroom.
［正］ There are two radios in the classroom.
［误］ I heard the weather report through the radio.
［正］ I heard the weather report on the radio.
［析］ 在收音机中听到某事应为hear something on the ra dio，听收音机应为l isten to the radio. 这样的用法还有电视，看电视为watch TV，讲在电视上看见什 么节目为watch…on TV，如： I'm watching the football match on TV. 但注意，作为 一种通信手段时应为by radio, 如： Police are talking to each other by radio. rain
［误］ There is a small rain falling.
［正］ There is a light rain falling.
［误］ There is a big rain.
［正］ There is a heavy rain.
