形容词变名词~

名词变成形容词：1．名词后加-y, 如：luck→lucky, cloud→cloudy; wind→windy; rain→rainy; sun→sunny, snow→snowy noise-noisy health→healthy2．在名词后加-ly, 如： friend→friendly love→lovely day→daily3．方位名词加-ern，如：east→eastern west→western south→southern north→northern