表示“工作”时，job是可数名词；work是不可数名词。如：[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ s~JrrD-Q`{(dT$ PFroG]

    When the factory closed, many workers lost their jobs(=were out of work).那家工厂一倒闭，许多工人失业了。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ +N`t.DIK |@&y"niFroG]

    Digging in the field is a hard work. 在地里挖土是辛苦的工作。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ vn*O"2a~@ IhWaFroG]

    There is a lot of work to do. 有许多事情要做。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ xmi@QrPE.7sly=M?FroG]

    What's your job? (=What work do you do?)你是干什么工作的？[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ aF j6APqerE*bWXFroG]

    注意：homework 和housework也是不可数名词。[文章版权 禁止转载:考试与评价 http://www.trgroup.com.cn/te/ Tp\/i7xRsbMwpFroG]