派生词
派生是指由一个词根加上前缀和(或) 后缀构成另一个词的构词形式。
词根:如 word depend, call, light enlist, belittle
前缀+词根: 如
前缀+词根+后缀: 如 independent,irrespon① 无 , 不 , 非 : astable 不 稳 定 的 , acentric 无 中 心 的 , atypical ②含有in, on, at, by, with, to等意义:asleep, ahead, alive ab- 脱离: abnormal, absent; abstract; abmind; abuse Anti-反抗: antiwar, anti-imperialist, anti-virus auto- 自 动 autobiography, autostable, automobile; autonomous be- 使…加强: belittle; befriend, becalm; bethink(反思) bi- 二, 双: biweekly; bilingual; bicycle; binoculars (双筒望 远镜)
合成形容词
合成词
⑴数词 + 名词 a five-year plan;first-class products;second-hand goods;a four-letter word ⑵数词 + 名词 +ed a three-legged bench;a one-eyed camel ⑶数词 + 名词 + 形容词 a 20-year-old lady;a 1,000-metre-long bridge ⑷名词 + 现在分词 peace-loving;meat-eating;English-speaking;historymaking ⑸名词 + 过去分词 heart-broken;man-made;state-owned;water-covered