These words all refer to the amount of money that you have to pay for sth.以上各词均指价值、价钱。
price the amount of money that you have to pay for an item or service指商品或服务的价格、价钱：◆house prices房屋价格◆How much are these? They don't have a price on them.这些东西卖多少钱？它们都没有标价。◆I can't afford it at that price.这样的价格我付不起。
cost the amount of money that you need in order to buy, make or do sth指购买、制造某物或做某事所需的成本、费用、花费：◆A new computer system has been installed at a cost of £80 000.新的计算机系统已安装，费用为 8 万英镑。
value how much sth is worth in money or other goods for which it can be exchanged指价值：◆The winner will receive a prize to the value of £1 000.获胜者将得到价值为 1 000 英镑的奖品。NOTEEspecially in British English, value can also mean how much sth is worth compared with its price.尤其在英式英语中，value 亦表示划算程度：◆This restaurant is excellent value(= is worth the money it costs).这家餐馆很合算。
price, cost or value?用 price、cost 还是 value？
The price is what sb asks you to pay for an item or service. * price 指商品或服务的要价：◆to ask/charge a high price要价高；收费高◆to ask/charge a high cost/valueObtaining or achieving sth may have a cost; the value of sth is how much other people would be willing to pay for it. * cost 指获取某物或达到某目的所需的费用；value 指别人愿意为某物付出的价值：◆house prices房屋价格◆the cost of moving house搬家费用◆The house now has a market value of one million pounds.这栋房子目前的市场价值为 100 万英镑。
expense the money that you spend on sth; sth that makes you spend money指所花费用、花钱的东西、开销：◆The garden was transformed at great expense.花园改建花了一大笔费用。◆Running a car is a big expense.养一辆车开销很大。
worth the financial value of sb/sth指人或物的价值：◆He has a personal net worth of $10 million.他有价值 1 000 万美元的个人净资产。NOTEWorth is more often used to mean the practical or moral value of sth. * worth 较常用以指某事物的实际作用或道德意义。
