ir+adj.-adj regular-irregular(不规则的)

responsible-irresponsible(不负责任的) dis+adj.-adj honest-dishonest(不诚实的)

satisfied-dissatisfied(不满意的) un+v.-v dress-undress(脱衣服)

load-unload(卸货) dis+v.-v like-dislike(不喜欢)

cover-discover(发现) non+n.-adj profit-nonprofit(非盈利的)

stop-nonstop(不间断的) ill treat-illtreat(虐待)

manner-illmannered(没礼貌的) 常用的否定后缀有：

n.+less-adj care-careless(粗心的) home-homeless(无家可归的) n.+free-adj. care-carefree(无忧无虑的)

paper-paperfree(无纸张的) ◆活学活用

（一）用所给单词的适当形式填空。

Ann walked out of the chemical factory, annoyed at her 1 (pleasant)interview with Jack, the vice general manager of the