1.spend ,主语是人句型 ：sb.spend +钱/时间 +on +sthsb.spend +钱/时间 +（ in ）+ doing sth 其中in可以省略例句：Tom spent two hours on his homework.Tom spent two hours ( in ) doing his homework.My sister spent 100 dollars on her dress.My sister spent 100 dollars ( in ) buying her dress.2.pay ,主语是人句型：sb.pay +钱+for sth例句：I paid 200 yuan for this pair of shoes.3,cost 主语是物句型：sth cost sb some money例句：These books cost me 150 yuan.4,take 一般由it作形式主语常用于句型 it takes sb some time/money to do sth.花费某人多少时间/金钱去做某事.例句：It took me 10 minutes to walk to school from my home.It took him 20 yuan to buy this book.Cost 是物做主语，某物花了某人多少钱例句：The book cost me 32 yuan.
