1、四六级作文中间主体内容句型大学英语四级六级考试原因结果分析，基本原因 - 分析某事物时, 用此句型说明其基本的或者多方面的原因.，e.g:，1. Why . ? For one thing. For another .，2. The answer to this problem invovles many factors. For one ，thing.，For another. Still another .，3. A number of factors , both physical and psychological ，affect .，/both individual and soci
2、al contribute to .，另一原因 - 在分析了基本原因之后, 再补充一个次要的或者更重，要时用!，e.g:，1. Another important factor is .，2. . is also responsible for the change/problem.，3. Certainly , the . is not the sole reason for .，后果影响 - 分析某事物可能造成的后果或者带来的影响 .，e.g:，1. It will produce a profound/far-reaching effect/impact ，on.，2. In invol
3、ves some serious consequence for .，比较对照句型，两者比较 - 比较两事物, 要说出其一超过另一个, 或肯定一事物的优，点, 也肯定其缺点的时候用 !，e.g:，1. The advantages gained from A are much greater than the ，advantages，we gain from B.，2. Indeed, A carries much weight when compared with B.，3. There is no doubt that it has its negative effects as well ，as，positive effects.，两者相同/相似 - 比较两事物共同都有或者共同都没有的特点时，用!，e.g:，1. A and B have several thing in common.，They are similar in that.，2. A bears some sriking resemblance(s) to B.，
