##### 非谓语动词作表语 - 不定式作表语 - His dream is **to become a doctor**.（他的梦想是成为一名医生。） - Her goal is **to travel the world.**（她的目标是周游世界。） - 动名词作表语 - Her favorite activity is **swimming**.（她最喜欢的活动是游泳。） - His hobby is **playing the guitar**.（他的爱好是弹吉他。） - 分词作表语 - The movie was **captivating**.（这部电影非常吸引人。） - She felt **excited** after hearing the news.（她听到消息后感到兴奋。）