下面是对同题目的5分范文的分析

1.complexity:
深度明显不够，但ETS给了他很高评价。全文是典型的总分关系， 让步式论证。本文一大亮点是的让步与转折衔接得很到位，天衣无缝。

2. insightful reason & persvasive examples:
对这篇文章这两点是紧密结合的，本文最大亮点的是通过举例说理，例子选的再恰当不过了。

3. well-focused:
结构简单明了，简单也由简单的好处，不担心跑题

4. well-organized:
1段：态度+让步+总论点
2段：medical field的分论点+让步+过渡(Sometimes, though, a sickness may go beyond a family doctor's knowledge... When a patient requires more care than a doctor can provide, he may be referred to a specialist.)+For instance例子中的例子+This is an excellent examples of how...
可以把本段改写如下: 从这句话开始：Sometimes, though, a sickness may go beyond a primary care doctor's knowledge or the prescribed treatments do not work the way they should. In this case, patients need to see someone who know how the problem begins, progress, and specify treatment. Primary care doctors may refer patients with unusually complicated problems to specialists with advanced training in a particular disease or field of medicine. Specialists are just the ones who investigate particular organs and disorders, the general study of disease and the changes that it causes in the human body; they are just the ones who are proficient at ins and outs; they are also the ones who can even devise a remedy that primary care doctors use to restore health to the sick. For instance, a person with constant breathing problems that require hospitalizaiton may be suggested to visit an asthma specialist. This is an excellent example of how a generalized person may not be equipped enough to handle something as well as a specilazied one can.

3段：teaching的分论点+让步+转折+递进(As the years in school increase...)+反面论诉(Our teacher or professor can not provide as much...)
the beginning of the stage of formal operational thought, which may be characterized as thinking that involves deductive logic.

本段叙述还是有问题，可改为：从这句话开始：Another example of a specialist who is needed instead of a generalist involves teaching. In grammar school, children learn all the basic principles of reading, writing, and arithmatic. Generalized teachers are required to begin molding students at a very early age so they can grow into a capable young person who has mastered language, is self-aware, can think and reason with sophistication, has a distinctive personality, and socializes effortlessly with others. But as children get older and the years in school increase, they gain more mature thinking that involves deductive logic and a better understanding of language and scientific knowledge. They crave for more advanced vocabulary, more instruction of the philosophy of how all life is composed and in what manner it functions, more complex concept of mathematics and more specific experimental lore of particular subject. Generalized teachers are incapablle of serving their learning needs. Our teachers or professors can not go as much in-depth as possible to provide you with the information on all of these topics we are looking for. But they can guarantee we will get beaucoup knowledge in a certain sphere.

最后再加个结尾段：There are several other facets pertinent to the issue under discussion, which, regrettably, I have no time to delve too deeply into. But the above-discussed grounds should to a great extent justify my claim that speicialists are necessitous to allow us to get to the bottom of more intricate conundrums and how to crack them.