递进式结构

　　1． Fresh vegetables are nutritious(有营养的);furthermore, they re cheaper than frozen ones.

　　2． We will not only bring joy into other people’s lives, but also added happiness into our own.

　　3． But teaching offers something beside money and power; it offers love. Not only the love of learning and go books and ideas, but also the love that a teacher feels for his students.

　　4． Not only should you limber up (做准备活动)before exercising, but you must also be sure to cool down afterwards.

　　5． They do not seem to like one anther very much. Neither are they too keen on conventional people (正统的人).