英语中怎样变名词为]形容词

名词变形容词：1．名词后加-y,如：luck→lucky,cloud→cloudy; wind→windy; rain→rainy; sun→sunny,snow→snowy noise-noisy health→healthy 2．在名词后加-ly,如：friend→friendly love→lovely day→daily 3．方位名词加-ern,如：east→eastern west→western south→southern north→northern