His face went brightly red.这句为什么把brightly改为bright?

His face went brightly red.这句为什么把brightly改为bright? bright 与brightly bright与brightly区别 his face went bright red.这里bright和red什么词性? how brightly 和how bright哪个是对的,为什么? The sun is shining brightly today .为什么是brightly? the moon is shining brightly改为感叹句 The sun shines brightly here every day 改为同义句 There __ __ __ His eyes shone brightly when he finally received the magazin "The sun shines brightly"改为感叹句,一共五个单词 八上英语1.The sun shines brightly here every day.（改为同义句）There __ the sun is shining （ ）.括号应填bright 还是brightly?