Word formationWord formation • They all went board the ship.• There is some doubt that he will give a lecture.• It is likely that he will come next week, but he may not.• He went to Australia for farther study.• Walk along its shores they go through forests of mushrooms.• He came out of the library, a book was carried under his arm. Word formationWord formation• 前缀 : 改变词义 , 有个别可以改变词性 .• 后缀 : 改变词性 改变词性的词缀改变词性的词缀• Asleep / Endanger / outnumber / enlargeenable / encourage / aboard a - , 构成形容词或副词 en – 构成动词 , out- 构成动词Guess the meaning of these words:aside / ashore / enforce / enrich / outclass /outsmart 用来表示反义词的前缀用来表示反义词的前缀• Disappear, disagree, illogical, impolite informal, independent, irresponsible, non-smoker, non-violent, unsafe, unable, uncertain• Guess the meaning of following words.distrust, disorder, illegal, injustice, non-flammable, non-drinker, irregular, unwillingly, uncover, untie 常见的表示其他意义的前缀常见的表示其他意义的前缀• Automatic, autography( 自传 ), automobile( 汽车 )• bicycle, biannual( 两年一次的 )• bio-engineering• co-exist( 共存 ), co-operate( 合作 )• ever-growing, ever- faster• ex-wife( 前妻 ), ex-husband• forehead, foresee( 预见 )• full-speed, full-year, half-asleep, half- finished• ill- luck 运气不佳 , ill-health Guess the meaning of the Guess the meaning of the following words.following words.• auto-dial, auto bulb, bimonthly, • co-star, co-worker, co-author• ever-lasting, ever-stronger• ex-president• foreleg, foretell• ill-informed, ill-judged, ill-looking 常见的表示其他意义的前缀常见的表示其他意义的前缀• international, inter-city, interact• miniskirt, minibus• extraordinary, extra-bright• misunderstand, misjudge• over...