加在名词后:nature(自然) → natural(自然的)例句: She has a natural talent for music.(她天生有音乐才能。)culture(文化) → cultural(文化的)例句: The city is known for its cultural diversity.(这座城市以其文化多样性闻名。)以 -y 结尾的名词 → 改为 -ical(部分词可简化为 -al):history(历史) → historical(历史的)例句: This is a historical event.(这是一个历史性事件。)economy(经济) → economic(经济的) / economical(节约的)例句: The government introduced new economic policies.(政府出台了新的经济政策。)例句: This car is very economical on fuel.(这辆车非常省油。)以 -ion/-tion 结尾的名词 → 改为 -ional:nation(国家) → national(国家的)例句: The national anthem played before the game.(比赛前奏响了国歌。)education(教育) → educational(教育的)例句: This museum has many educational programs for children.(这家博物馆有许多面向儿童的教育项目。)以 -e 结尾的词,通常保留 -e 再加 -al(部分词省略 -e):medicine(医学) → medicinal(药用的)例句: This plant has medicinal properties.(这种植物具有药用价值。)verse(诗句) → universal(普遍的)例句: Love is a universal language.(爱是一种普世语言。)动词 + -al → 表示“动作或结果”:arrive(到达) → arrival(到达)例句: We awaited the arrival of the guests.(我们等待客人们的到来。)approve(批准) → approval(批准)例句: The project needs the manager’s approval.(这个项目需要经理的批准。)以 -y 结尾的动词 → 变 -y 为 -i + -al:try(尝试) → trial(审判;试验)例句: The new drug is undergoing clinical trials.(这种新药正在进行临床试验。)以不发音 -e 结尾的动词 → 通常保留 -e:dispose(处理) → disposal(处理)例句: Waste disposal is a major environmental issue.(废物处理是一个重大的环境问题。)-al(形容词)表示“与…相关的”natural, culturalShe has a natural talent.-ical(形容词)用于 -y 结尾的词historical, economicalThis is a historical event.-al(名词)表示“动作或过程”arrival, approvalWe awaited their arrival.例外不规则变化solar, personalSolar power is clean energy.摘要:加在名词后:nature(自然) →natural(自然的)例句:She has a natural talent for music.(她天生有音乐才能。)culture(文化) →cultural(文化的)例句:The city is known for
注意:并非所有词都能加 -al,需结合词源和习惯用法判断。
来源:大地在沉睡我们在赶路一点号