Question

8．课外活动不仅能帮助我们保持健康，而且还能增进友谊．
After-class activities cannot only help us keep healthy but also develop our friendship．

Answer 1

分析 not only help us keep healthy but also develop our friendship．

解答 答案：not only help us keep healthy but also develop our friendship．这里含有情态动词can，后加动词原形，表示不仅…而且…用not only…but also…，连接两个对等成分，这里是连接两个动词短语原形，帮助某人做某事help sb do sth，保持健康keep healthy，故not only help us keep healthy but also，增进develop后加宾语我们的友谊our friendship，故答案是not only help us keep healthy but also develop our friendship．

点评 该表达的意思是"不但…而且…"主要用于连接两个对等的成分；若连接两个成分作主语，其后谓语动词与靠近的主语保持一致．如：
She likes not only music but also sport．她不但喜欢音乐而且喜欢运动．．
Not only the students but also their teacher is enjoying the film．不仅学生们在欣赏这部影片，他们的老师也在欣赏这部影片．