1not only放在句首,后接句子时要用倒装结构：
Not only does television appeal to those who can read but to those who can't.电视不仅吸引阅读的人,而且也吸引了不会阅读的人.
2 not only … but also 连接两个主语时,谓语动词要和与其最近的主语保持人称和数的一致.例如：
Not only the students but also the teacher was against the plan./ Not only the teacher but also the students were against the plan.