dream
dream在教材中有两种用法:用作动词时意思为“做梦,梦到”;用作名词时意思为“梦想,幻想”。dream除了以上用法外,还有以下几种用法。
Her new dress is an absolute dream. (dream用作名词,意思为“美丽或美好的人或事物”。)
My aunt’s wedding ceremony went like a dream. (go like a dream是固定短语,意思为“非常顺利,完美”。)
When I was young I dreamed of becoming a surgeon. (dream 用作动词,意思为“渴望,迫切希望”。)

well
well在教材中有三种用法:用作副词时意思为“好,对,满意地”;用作感叹词时意思为“喔,噢,唔”;用作名词时意思为“井,水井”。
well除了以上用法外,还有以下几种用法。
The boy is well able to look after himself. (well用作副词,意思为“完全地,彻底地,全部地”。)
Her family is very well off. (well off是固定短语,意思为“有钱,富裕”。)
Tears were welling up in her eyes. (well用作动词,意思为“流出,涌出”。)