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able,capable,competent
able为常用词,指具有做某事所需的力量,技巧,知识与时间等,一般下效率无关,用作定语表示能力超出平均水平。
如:A cat is able to see in the dark. (猫在黑暗中能看见东西。)
capable 指满足一般要求的能力,可以是表现出来的,也可是潜在的,搭配是be capable of +doing.用作定语,表示的能力没有able表示的能力强。转自环 球 网 校edu24ol.com
如:He is capable of running a mile in a minute. (他能在一分钟内跑完一英里。)
He is a very capable doctor. (他是一位很好的大夫。)
competent 指"胜任","合格",或受过专业技术等训练的,但不是超群的能力。
如:A doctor should be competent to treat many diseases. (医生应该能治多种病。)
aboard,abroad,board,broad
aboard 在船(或飞机,车)上。如:I never went aboard a ship.
abroad 副词,在国外或海外。如:He often goes abroad.
board 为动词,上(船,飞机,车)。如:The passengers are boarding the plane now.
broad 为形容词,宽广的。如:He has very broad shoulders.
accept,receive
accept 接受,receive"接到","收到".如:I received an invitation yesterday,but I didn't accept it. (昨天我收到了一个请柬,但并没有接受邀请。)
accident,incident,event
accident事故。如:a traffic accident (交通事故)
incident"附带事件",在政治上特指引起国际争端或战争的事件,事变。
event "事件",指特别重要的事件,通常是由以前的努力而产生的结果,也指国家和社会的事件。
accurate,correct,exact,precise
accurate准确的,精确的。如:Clocks in railway stations should be accurate.
(火车站的钟应该是准确的。)
correct"正确的",指符合一定的标准或准则,含有"无错误的"意味。它的反义词是incorrect,wrong.
exact"精确的","恰好的",比"大体上正确"更进一步,表"丝毫不差".它的反义词是inexact.
precise强调"精确","精密".