ability,capability和capacity三有什么区别?

The child's reading ________ was great. A. ability B. capability C. capacity D. talent 这道题的答案是A.但B和C不是也有“能力”的意思吗?为什么不选它们呢?【答】 谢谢你的来信.ability, capability和capacity三个名词都有“能力”的意思,区别如下. 1. ability的含义较广,主要指人具有从事体力或脑力劳动的能力,并且暗含能够干好的意味.其复数形式表示“才能,专门技能”,其后常接to do sth.或in / for sth..如： She has the ability to do the job. 她有能力做好这项工作. He found the company more suited to his abilities. 他找到了更容易发挥他才能的公司. 2. capability的含义与ability相似,但它既可以指人,又可以指物.其复数形式常常表示“潜在的能力”,其后接to do sth. / of doing sth. / for sth..如： He has the capability to complete this job. 他有能力完成这项工作. Our country has the capability to defeat any intruder. 我国有能力战胜任何侵略者. 3. capacity指人或物的容纳或吸收能力,其后接for sth. / of sth..如： His capacity for languages is wonderful. 他学语言的能力极好. The hall has a capacity of five hundred people. 这个会堂可以容纳五百人.