① increase作動詞用時,可以是及物動詞或不及物動詞,意為“增長,增加”,讀音為[?n?kri?s]。
The population is increasing rapidly. 人口在迅速增加。
The driver increased the speed of the car. 司機加快了車速。
The people there have greatly increased their income. 那里的人們大大地提高了收入。
② increase作名詞用時,讀音為[??nkri?s],為不可數(shù)名詞,但可以說a rapid increase,a steady increase。
There is a rapid increase in steel production. 鋼產(chǎn)量在迅速增長。
The increase of income will make people live better. 收入的增加會使人們生活得更好。
③ increase和add都可表示“增加”,但用法不同。increase主要指數(shù)量、重量、價值、力量等的增加;add則表示將某物加在另一物上,使之增加,常用于add sth. to結構中。
比較
They have increased her wage to 1,000 dollars a month. 他們已把她的工資提高到每月1000美元。(增加到)
They have added 1,000 dollars to her wage a month. 他們已每月給她加1000美元的工資。(在原有的數(shù)額上添加)