<正>一、素材积累Ⅰ.核心单词1. observe v.观察;监视;庆祝;遵守;评论observation n.观察2. quality n.品质3. thoughtful adj.考虑周到的thoughtfully adv.沉思地;体贴地4. mean adj.小气的5. modest adj.谦虚的;谦逊的modesty n.谦逊