385 increase和add
① increase作动词用时,可以是及物动词或不及物动词,意为“增长,增加”,读音为[ɪnˈkriːs]。
The population is increasing rapidly. 人口在迅速增加。
The driver increased the speed of the car. 司机加快了车速。
The people there have greatly increased their income. 那里的人们大大地提高了收入。
② increase作名词用时,读音为[ˈɪnkriːs],为不可数名词,但可以说a rapid increase,a steady increase。
There is a rapid increase in steel production. 钢产量在迅速增长。
The increase of income will make people live better. 收入的增加会使人们生活得更好。
③ increase和add都可表示“增加”,但用法不同。increase主要指数量、重量、价值、力量等的增加;add则表示将某物加在另一物上,使之增加,常用于add sth. to结构中。
比较
They have increased her wage to 1,000 dollars a month. 他们已把她的工资提高到每月1000美元。(增加到)
They have added 1,000 dollars to her wage a month. 他们已每月给她加1000美元的工资。(在原有的数额上添加)