議論文的寫作，住往從正反兩方面來論述，且都有其約定俗成的議論模式，即從“主題句一正面論述，反面論述一結論”四大塊去營造文章的基本結構（四塊論）。例如，某題目要求論述“學校規定‘課間學生只能呆在自己的教室里’對嗎？”這一話題。如果作者認為學校的規定不對，他就應該在文章第一塊（段）亮出自己的觀點：There is currently much discussion about whether students should stay in their own classrooms or not during break times.Personally I believe that—。而第二塊應該從正面論述“課間不能只呆在自己的教室里”的理由。比如可以說：I would argue that break times are our only opportunity to choose what we want to do. 第三塊則從反面觀點，即“課間只能呆在自己的教室里”出發，批駁對方觀點或進一步闡述己方觀點。例如可以說：Another reason why people say that students have to stay in their own classes at break times is that it would be difficult to organize dinners.最后一塊（段）則用不同的語言再次強調已方觀點。乍一看去，議論文“四塊論”仿佛有“八股文”的嫌疑，但“四塊論”符合人的認知規律，所以值得多多模仿和操練。
1.Firstly，it is very convenient in daily life.There are many shops and supermarkets in a city.I can buy everything I need easily in these places.When I am sick，I can easily see a doctor in any clinic or hospital.Transport services are good in a city.when I want to go somewhere，I can take a bus，a train or something else.There are also many kinds of entertainment in a city.Public buildings（such as libraries）and parks can easity be found in a city，too.
2.First.it is convenient and comfortable to live in a city.To begin with，there is good housing in a city，as all the houses and flats are well-equipped with good facilities and surrounded by modern amenities such as places of entertainment，public libraries and parks.
1.Students always feel relaxed and happy during breaks.（敘述性句子）
2.Break times are scheduled for about 10 minutes.（說明性句子）
Although some people believe that students should stay in their own classrooms during break times，I would like to argue that we should be allowed to spend break times in another class.
The most important reason for believing that is that many students have friends in other classes.We spend all day in our own classroom，and break times are the only time we have to spend with other friends.It can become very tedious（令人厭倦的）to have to spend even more time with the same people.
A further reason for allowing student to choose where they spend their break times is that it would stop arguements.If students are forced to spend time with classmates who are not good friends，they can annoy each other.This leads to problems that have to be sorted out by teachers.
Teachers argue that we all should stay in our own classes，because it is then easier to know what is going on.They say that it is difficult to keep track of students when they are walking round the corridors.However，students could be given the chance to choose a different classroom to spend the whole break time in.That would mean that there would not be any students in the corridors.
As I have explained，although it might be a little easier to manage when everyone stays in their own classroom，it would make break times happier for all students if they were allowed to choose where they spent their time.
1.Many people have tried a thousand times before they achieve their goals.（夸張）
2.Only a madman would choose to live in a modern city.（夸張）
3.Our life would be like soup without salt or flowers without sunlight.（比喻）
4.The best way is to reduce，reuse and recycle.（頭韻）
5.For children.the Internet is another way to waste more hours.（幽默）
6.If you want to earn a satisfactory grade in the training program，you must arrive punctually，you must behave courteously，and you must study conscientiously.（平行結構）
1.They gave me what I need，but not what I want.析：want可譯為“想要”。從漢語角度看，整個句子是流暢的，但從英語的邏輯上看，want與need的意義極易混淆，因此整個句子意義表達不到位，含糊不清?？梢愿臑椋篢hey have given me what I need but not What I often ask for.
2.Maybe there are also some disadvantages of living in a city，but I think they are less important.I feel convenient and comfortable.析：句子后半部分的邏輯關系未交代清楚，令人有“前語不搭后語”的感覺?？梢愿臑椋篢heere are surely disadvantages of living in a city，too，but they are less important and tend to be de-emphasized.For the sake of the advantages mentioned above，I prefer to live in a city.
3.Different people have different choices.Some people like living in a city and some people like living in a village.析：Choice的含義十分寬泛，因此與后面的like不相稱，應改為：Different people have different likes and dislikes.Some like to live in a city，others like to live in a village.
4.The people，the society and so on were quite different from now.析：The people，the society依然不足以讓讀者完全理解要論述的話題，可改為：The peopIe，the society and other aspects of life were quite different from now.
5.Thieves should be sentenced for what they have done.析：使用sentence未免言過其實，應改為：Thieves should be punished for their wrongdoing.
1.The Are No Good Reasons Why Boys and Girls Should Not Be Treated Equally.析：此為一標題句，此作者濫用雙重否定，從而使句子過長。宜改為：Boys and Girls Should Be Given Equal Treatment.
2.For instance，I knew how to communicate with other people and how to look after myself.The most important thing was that I learn to be independent.析：從意義上講，look after myself與independent關系緊密，可以合在一起。句子可改為：For instance，I knew how to communicate with others and how to look after myself as an independent girl.
3.Moreover，as some girls study harder than boys，they may be even superior.析：moreover后若繼續用從句，就會干擾讀者的思維?？筛臑椋篗oreover，some girls are very dilgent.As a result，they may prove superior to ordinary boys.
4.What I mean to say is that well-intentioned law-makers sometimes make fools of themselves.析：what從句并未提供新信息，故可刪去。句子可改為：Well-intentioned law—makers sometimes make fools of themselves.
1.We still have the social problems.
The same social problems still exist today.
2.For me，there is no need for further protection of woodlands.
As far as I‘m concerned，further protection of woodlands is not needed.
3.With the development of computer technology， commercial information exchange is becoming easier.
Computers have greatly influenced business communication.
4.Everything has two sides and this problem is quite the same.
Everything has two sides and this issue is not an exception.
1.The water was polluted.As a result，the fish died.
2.However，others think we should have junk food.
3.On the other hand packaging can have many disadvantages.
4.Firstly many people die of passive smoking（被動吸煙）and secondly it can aggravate（使……惡化）lung diseases.
相關的連接詞還有：On the contrary，all in all，in short，generally，worse still，on the other hand，in conclusion，as a consequence，hence，also，personally，furthermore，definitely，surely，undoubtedly，obviously，additionally，in addition，moreover，consequently，clearly，besides，as well，likewise，in my opinion，for the sake of，last but not the least，to begin with，firstly（first），etc.
The main reason is that…
I can‘t agree more.
Another thing we can‘t forget is that…
There is every reason to believe that…
As we all know…