spend 的主語(yǔ)是人 短語(yǔ) spend time/money （in） doing sth spend time/money on sth 如He spent five dollars (in) buying the book.he spend five dollar on the book.cost 的主語(yǔ)是物體 短語(yǔ) sth cost sb money 如the book costs him five dollars.take 主要是短語(yǔ) 一般的主語(yǔ)是 it 有時(shí)也可以是物體 短語(yǔ)it/sth takes sb time/money to do sth it takes him five dollars to buy the book.記住這幾點(diǎn)就行咯