找形容词变+NESS变名词...名词叫FUL变形容词和+LY成为副词!答:dark—darkness,happy-happiness,sad-sadness,ill-illness,kind-kindness,good-goodness,careful-carefulness,careless-carelessness,tired-tiredness,friendly-frendliness,lonely-loneliness,great-greatness wonderful-wonderfully,beautiful-beautifully,,careful-carefully,helpful-helpfully,thankful-thankfully,colourful...