Unit 1 ▲learn (学习,动词原形)→ learner (学习者,名词)→ learning (学习,动名词/现在分词) ▲wise (明智的,形容词)→ wisely (明智地,副词)→ wisdom (智慧,名词) ▲create (创造,动词原形)→ creative (有创造力的,形容词)→ creativity (创造力,名词) ▲connect (连接,动词原形)→ connection (连接,名词)→ connected (有联系的,形容词) ▲review (复习,动词原形)→ reviewer (评论者,名词)→ reviewed (被复习的,过去分词作形容词) ▲discover (发现,动词原形)→ discovery (发现,名词)→ discoverable (可发现的,形容词) ▲know (知道,动词原形)→ knowledge (知识,名词)→ known (知名的,形容词) Unit 2 ▲tradition (传统,名词)→ traditional (传统的,形容词)→ traditionally (传统上,副词) ▲celebrate (庆祝,动词原形)→ celebration (庆祝活动,名词)→ celebratory (庆祝的,形容词) ▲treat (对待;款待,动词/名词)→ treatment (对待方式;治疗,名词)→ treatable