［分论点］Field trips can increase children’s interest in studying and therefore to improve grades. ［细节论述］Field trips allow children to observe things in person and to be fully emerged into the wonderfulness of the great nature. This can make children’s studying becomes more interesting. No single child does not have the curiosity to explore things, and being participated in the trips can solve the questions they were previously curious about. Consequently, they will find studying and exploring things appealing to them so that they will be more willing to study and have better academic performances. For example, I have a 7-year-old nephew who is currently in second grade at a primary school. During his first year at school, there was not any kind of field trips and he kept telling me that schools were boring and not a single thing was there that seemed attractive to him. However, at the beginning of his second year, his school organized a forest trip and he got the chance to observe some lovely animals which he dreamed to have a glimpse at. He has already attended four of the field trips and could not help telling me how wonderful it is to study and as a result, his grades are all above A.
1. 从细节论述的第一句话开始，就已经在偷偷改变field trip的定义，正常来讲，field trip指的是实地考察，包括参观工厂，实验室，作坊，博物馆，动物园等，而去看大自然这是缩小概念，即无意识地跑题。Field trips allow children to observe things in person and to be fully emerged into the wonderfulness of the great nature.
2. 细节论述第二句话and being participated in the trips can solve the questions they were previously curious about. 这又放大了field trip的作用，意思是field trip可以解决所有孩子们好奇的问题，包治百病，过于主观，需要有解释才能有道理。