初中英语形容词的否定-(前缀和后缀)

形容词的否定(反义词) ★加前缀 1． 在单词前加‘un’ 1.comfortable → uncomfortable 2.happy → unhappy 3.necessary → unnecessary 4.important → unimportant 5.friendly → unfriendly 6.welcome → unwelcome 7.able → unable 8.common → uncommon 9.successful → unsuccessful 10.excited → unexcited 11.healthy → unhealthy 12.popular → unpopular 13.suitable → unsuitable 14.grateful → ungrateful 15.kind → unkind 16.likely → unlikely 17.safe → unsafe (dangerous) 18.helpful → unhelpful 19.usual → unusual 20.willing → unwilling 21.pleasant → unpleasant 22.real → unreal 23.lucky → unlucky 24.luckily → unluckily 25.tidy → untidy 2． 在单词前加‘dis’ honest → dishonest 3． 在p,b,m开头的形容词前加‘im’ 1.possible → impossible 2.polite → impolite (rude) 3.patient → impatient 4． 在单词前加‘in’ 1. correct → i