Q1. quality，qualify，qualification，qualitative

quality，qualify，qualification，qualitative

构词：qu（= c，砍刻切割）＋al（adj.）＋ity（n.）

刻印记号的n. 品质；特质。adj. 优质的

qualify v. 有资格

qualification n. 资格

qualitative adj. 定性的

辨析：quality—quantity（count）

相关：cut，cite，character，kind，kill

搭配：poor / high / personal / leadership quality，quality of life；

qualify someone to / for，someone qualifies 

teaching / academic / formal / paper / acquire / hold qualification

qualitative analysis / research

近义：quality = feature，characteristic，attribute，trait，nature

            qualify = certify，equip，prepare

            qualified = adequate，competent，capable，able