. . . . .四六级写作三段式一、 开头常用短语句式（introduction），介绍文章的背景(1) With the (rapidly) growing popularity of (computers/private cars) in China, the quality of our lives has been considerably changed.(2) With the (rapid) growth of (our economy/population), many problems such as (water shortages/waste of energy/lack of professionals and chaotic management) are beginng to surface(3) With the development of (science and technology/market economy), more and more/an increasing number of people come to realize that .(4) Currently there is a widespread/serious concern over (illegal publication/drug abuse/negative influence of western cultures).(5) Nowadays, a heated debated/discussion about.is under way in China .some people believe that ., whereas others argue that.(6) There are some reasons for owning (private cars/ personal computers). To begin with,. Next,. Last, . There are, on the oher hand, many reasons against it. First, . Second,. Finally,.(7) There are many advantanges and disadvantages in (owning a car).(8) There are various /at least three ways/possible techniques/problems/methods to do something(9) Smoking/Alcoholic beverage should be banned from college campuses for toe reasons. The first reason is that . The second reason is that . /On the one hand , . On the other hand. .(10) The possible solutions of (the enery crisis/water shortanges/these social problems) depend on three factors.(11) The tow major reasons responsible for (the rapid economic growth /the widespread of fake products ) are.二、 主体部分，一般提出论点，描述原因这部分要注意观点与观点，句与句的衔接，使用恰当的连词或短语能为文章增添不少的两点A，引出论点句型：1. As far as I am concerned,2. As for me.3. I strongly hold the belief that4. I deem thatB，阐述原因或影响可用的句型1. There are many/a variety of good/possible reasons for/against this phenomenon2. There are numerous reasons why.and I would explore only a few of the most important ones here.3. A number of/A multitude of factors could account for/contribute to/lead to/result in.4. It has exerted a profound influence on.5. The most contributing/contributory factor is.6. One of the primary causes perhaps is that.7. The leading/most obvious reason is.8. The root/underlying cause of.is.9. .is mainly responsible for.10. The major factor lies in.C.引出事例的句型及词组1. Takefor example2. for instance/in this case./namely/such as/a case in point is./consider./stated roughly 3. as an illustration， we may take the case of.4. a good example (of.)would be.5. to detail this，I would like to.6. It is interesting to note that.7. take as example (something); as regards8. I can think of no better illustration of this idea than the example of9. History/our nation/our society is filled with the example of其他常用词组1) 顺序关系：Firstly.secondly.thirdlyIn the first place.in the second place.in the third place首先 first of all/to begin with/first and foremost其次 besides/in addition/furthermore/moreover/aside from/whats more最后 finally/lastly/last of all/last but not least/in the last place/above all/eventually/at length2) 因果关系：因为because/because of this;being that;another important factorreason;since;in that.;owing to;due to;for the reason that.;in view of;the reason seems to be obvious; there are about. ;for this reason; 所以as a result of this;therefore;.and so.;consequently;as a result;thus henceso that. in consequence； as a consequence； accordingly; inevitably; 3) 转折关系：but； even so； however； though； even though； independent of；reckless of ； despite that； in spite of that； regardless of; yet.； and yet； but unless. 4) 并列关系：and; also；too；as well as；either.，or.；both.and. 5) (补充)递进关系： not only.but also.； not.but.；additionally, much more interesting, more specifically, next, besides； in other words； on the one hand.，on the other hand.； even； as a poplar saying goes.；in order to do it.; meanwhile； at the same time； accordingly； equally important; of even greater appeal. 6) 比较关系： similarly; in like manner, in comparison with； when compared with； compared with； when in fact.; like.； likewise； similarly important； apart from (doing).； . . rather than.， by doing so ； bothand.; in the same way; not only.but (also). 7) 对照(不同点)：yet; still; for all of that; notwithstanding; rather; neither . nor; although; though; but; however; conversely； unlike；something is just the other way around； opposed to; as opposed to ； in contrast (to)； by way of； on the contrary； different from this；as opposedto this； nevertheless; contrary to； whereas； while；but on the other hand. 8) 强调关系：in fact; especially； particularly； moreover； n