able
/ˈebəl/KK
/ˈeɪbəl/IPA
e·bəl
變化形
比較級
abler
最高級
ablest
1.
有能力的；能夠的
極常用
具備完成某件事所需的能力或條件
用法：後面通常接不定詞；常見結構為「主詞＋be＋able＋to＋原形動詞」。否定形式表示「無法……」
be able to finish
be able to understand
be able to afford
be unable to attend
I was able to finish my homework before dinner.
我能在晚餐前完成作業。
Are you able to come to the school meeting tomorrow?
你明天能來參加學校會議嗎？
2.
能幹的；有才幹的
常用
具備良好能力，能有效完成工作或處理事情
用法：通常放在名詞前面修飾人，也可放在連綴動詞後面作主詞補語
an able student
an able teacher
an able leader
a highly able employee
She is an able teacher who explains hard ideas clearly.
她是一位能幹的老師，能清楚地解釋難懂的想法。
常見錯誤
I am able finish my homework.
I am able to finish my homework.
I can able to help you.
I can help you.／I am able to help you.
I am able for swim.
I am able to swim.
I able to understand the teacher.
I am able to understand the teacher.
相關字詞
ability 同源詞
capable 近義
can 近義
unable 反義
學習提示
・表示一般能力時，情態動詞can通常比be able to更簡潔自然。
・表示特定一次成功做到的事情時，過去式be able to常比could更精確，例如表示某人最後成功完成某事。
・不要把「能夠」直譯成「have ability to」；日常英語通常使用can或be able to。