大学英语三级书信作文范文
1. 人们往往看到B的明显优点而忽视了它的缺点，同时A的'内在优势没有被重视。
第一段：To choose A or to choose B is something of a dilemma to the public because they sometimes are confused by the seemingly good qualities of B while neglect the genuinely good aspects of A.
第二段：[For B, people are often driven to believe that / It is quite easy for common people to CHOOSE B because of the obvious reason that] ____________. (As a proverb says, "Everything has two sides".) Although B does have its seemingly profound advantages， in the meantime [there lie [harmful characteristics/ intrinsic drawbacks] in it such as ____________ / it can be achieved only conditionally because____________] . Some [people/experts] [maintain/warn] that____________. However， it is often overlooked [by the public/most people]. (Therefore we have no complete evidence to suggest that B is always better than A.)
第三段： Unfortunately, the innate quality of A is often underestimated.
或：What is more, if you notice the invisible benefits of CHOOSING A, you can understand A more deeply. Here I would explain a few of the most important reasons for choosing A. 第一点原因。第二点原因。第三点原因。(列举原因的句式见最后的“通用句型”)
第四段：Therefore from what we have discussed, we may safely come to the conclusion that CHOOSING AAA is a rather wise decision.
2. 选A还是选B的确是一个热门话题，我们来研究一下，A比B至少有三大优势：1，2，3.
第一段：There is no denying the fact that ____________(whether it is better to choose A or B) is a popular topic which is much talked about [not only by ____________, but also by ____________/by people across the world/ in a modern society].
或：There is no denying the fact that ____________(whether it is better to choose A or B) is a popular topic which has caused heated debate over a long period of time (because it affects everybody in his or her daily lives).
或：In a modern society, people are always faced with the dilemma of whether to choose A or B. This problem is a much-debated one in that it affects everybody in his or her daily lives.
或：(如果是针对某一事件的题目，不是什么popular topic)If ____________(it is announced that a new movie theater may be built ____________), I will not be surprised to see ____________ (whether it is better to choose A or B) become a popular topic which is much talked about not only by ____________, but also by ____________. Although it seems that [sometimes we can not tell which one outweigh the other between A and B / they normally coexist peacefully], they deserve some close examination. [If three criteria were taken into account in comparing these two， I would prefer A. / As far as I am concerned, I vote for the latter]. There are no less than three advantages in A as rendered below