1 . cost
The ticket cost me ten dollars.
（此句中cost用作及物动词,意为“花费”,这是cost的常用法之一。）
The cost of living is much higher now than it was two years ago.
（此句中cost用作名词,意为“价格,成本,费用”,这是它的常用法之二。）
cost除了以上用法外,还有其它用法。如:
① Has this project been costed?
(cost用作及物动词,意为“估价,估计成本”。)
② I must get the book at all costs.
(at all costs意为“无论如何,不惜任何代价”。)
③ She saved him from drowning, but at the cost of her own life.
(at the cost of sth.意为“以牺牲某事物为代价”。)
2. deal
Teachers should deal fairly with their pupils.
（此句中deal用作不及物动词,常和with连用,意为“对待”,这是deal的常用法。）
deal还有其它用法。如:
①She spent a good deal of money on new clothes. (a good deal of意为“很多,大量”后接不可数名词。)
②We tried to make sure everyone got a fair deal. (a fair deal意为“公平的待遇”。)
③My bank deals in stocks and shares now. (deal in意为“经营”。)
④The teacher dealt out the test papers to the students. (deal out意为“分发”。)
3 interest
interest在教材中的意思为“兴趣”和“使感兴趣”,分别作名词和动词用。
The money I borrowed from him was repaid with interest.
What he did was just to protect his own interests.
上面句子中的两个interest都作名词用。作“利息”讲时,为不可数名词;作“利益,好处”讲时,多用复数形式。
第一句可译为“我向他借的那笔钱是带息偿还的。”;第二句可译为“他所做的一切仅仅是为了保护他自己的利益。”
4. drive
Can you drive a car? (drive用作动词,意思为“开车,驾驶”,是教材中的第一种用法。)
Let’s go for a drive in the country.
(drive用作名词,意思为“驱车旅行”,是教材中的第二种用法。)
除了以上用法外, drive还有其它用法。如：
①The workers carried on a drive for greater efficiency last month.
(drive用作名词,意思为“运动”。)
②There are three buses parked on the drive. (drive用作名词,意思为“车道”。)
③Poverty drove the little boy to steal. (drive用作动词,意思为“驱使”。)
④I’m sure that I’ve driven my opinion home. (drive sth. home意思为“把……讲透彻,使充分理解”。)
⑤Please drive the dog away. (drive sb./sth. away意思为“把……赶跑”。)
