中間段是文章的正文，其作用是從不同的層面對文章主題進行具體和詳實的解釋和論證。
1）中間段的一般特征①篇幅一般比開頭段和結(jié)尾段長。
②每段有相應(yīng)的主題句。
③包含定義、解釋、描寫，說明主題思想的擴展句可以采用實例、數(shù)據(jù)或個人經(jīng)歷等寫作手段。
④不同種類的段落采用不同的擴展手段。
2）中間段的具體特點①所涉及內(nèi)容應(yīng)該準(zhǔn)確、清楚，頗具說服力；②段落中一定具備主題句；③段落內(nèi)容應(yīng)該保持完整、統(tǒng)一，沒有說明不足之處或多余冗長的細節(jié)；④內(nèi)容順序安排合理，邏輯性較強；⑤段落之間連貫自然；⑥段落中討論的內(nèi)容主次分明，材料比例適當(dāng)；⑦詞與句型運用合理并且有變化。
3）中間段展開的基本方法①列舉法例文：There are a number of ways for us to keep fit. First， no matter how busy we are， we should have exercise every day to strengthen our muscles. Second， it is important to keep good hours. For example， if we are in the habit of going to bed early and getting up early， we can avoid overworking ourselves and get enough sleep. Finally， entertainment is also necessary so that we may have some moments of relaxation. If we follow those instruction. We will certainly be in good health.②比較對比法例文：The older form of communication is speech. In the beginning of human history， people could only use direct verbal speech to communicate. But it had many shortcomings. For instance， we could not speak to a person far away when we needed. So distance was a problem. And the spoken word could not be kept secret easily. So people wanted to invent a new method of communication. The next big step forward in communication was the invention of writing. Writing is one of human being's most important inventions. It solved the problem of distance and keeping secrets， but it too had disadvantages. The written word could not be passed on quickly， so people tried to find a new quicker method of communication. The most recent development had been electronic means of communication， including the wireless telegraph， radio， telephone and television. The invention and use of electronic means has solved all the problems mentioned above. They are the most effective methods of communication. People will certainly try their best to invent even more modem and useful methods.③因果法例文：The hamburger is the most popular food item in the United States. Every year Americans consume billions of them. They are sold in expensive restaurants and in humble diners. They are cooked at home on the kitchen stove or over a barbecue grill in the backyard. Why are they so popular？
First， a hamburger is extremely easy to prepare. It is nothing more than a piece of ground beef， cooked for a few minutes. Then it is placed in a sliced bun. Nothing could be simpler. Even an unskilled cook can turn out hundreds of them in an hour. Besides that， the simple hamburger can be varied in many ways. You can melt some cheese on top of the beef to create a cheeseburger. You can also add some grilled bacon for an interesting flavor contrast. In addition， you can garnish the hamburger with other things such as lettuce， tomato， onion， mushrooms， avocado， pickles， hot pepper， ketchup， relish， mayonnaise， mustard or whatever you wish！
④例證法例文：The saying“No pains， no gains”is universally accepted because of the plain yet philosophical moral it teaches： if one wants to achieve something， he has to work and tolerate more than others. The saying is true of any pursuit man seeks. A case in point is boxing. While we heap cheers on the winner， few happen to imagine that his gold belt is won at the cost of his sweat， tears， blood， even life over years before the arrival of that exciting moment.⑤發(fā)展過程法例文：To build your own sunscope， get a carton and cut a hole in one side， big enough to poke your head through. Paste white paper on the inside surface that you will be facing. Then punch a pinholesintosthe opposite side high enough so that the little shaft of light will miss your head. For a sharper image you can make a better pinhole by cutting a one-inch square hole in the carton， taping a piece of aluminum foil over this hole， and then making the pin-hole in the foil. Finally， tape the box shut and cover all light leaks with black tape.⑥定義法例文：Diligence is the key to success. It means persistent work and does not mean that we are to exert ourselves all day and night without rest， without food and without sleep. The true meaning of diligence is the careful use of time for the purpose of improvement， or to work persistently without any waste of time.⑦分類法例文：Nowadays the news media mainly consists of radio， television and newspapers. Each type has its own advantages and disadvantages. Newspapers are the oldest form for communicating the news. Today many people still begin their day by reading the morning paper whileshavingsbreakfast， and end their day by reading the evening paper whileshavingsdinner. The invention of the radio has had a tremendous influence on the world. It is able to bring up-to-minute news to distant places in a matter of seconds. Thus the development of the radio has made the world a smaller place. Television is the most recently developed device for communication. It allows us to see as well as to hear the news. The fact that it enables people to see visual images has had a considerable effect on our perceptions of world event. 4）中間段的常用核心句型Although the popular belief is that…， a current （new / recent） study； （survey / poll / investigation） indicates （shows / demonstrates） that…。
Common sense tells us that…。；The increase （change / failure / success） in…mainly （largely / partly）； results from （arises from / is because of）…。
The increase （change / failure / success） in…is due to （owing to /； attributable to） the fact that…。
Many people would claim that…。；One may attribute （ascribe / owe） the increase （decrease / change ） to…，； but…is not by itself an adequate explanation. One of the reasons given for…is that…。；What is also worth noticing is that…。；There are many （different / several /a number of / a variety of）causes； （reasons） for this dramatic （marked / significant） growth （change / decline / increase） in…。 First，…。 Second，…。 Finally，…。
There is no evidence to suggest that…。；Why are （is / do / did）…？ For one thing，…。 For another，…。；Another reason why I dispute the above statement is that…。；It gives rise to （lead to / bring /create） a host of problems； （consequences）。
There are numerous reasons why…， and I shall here explore only a few of； the most important ones. It will exert （have / produce） profound （far-reaching / remarkable /； considerable / beneficial / favorable / undesirable / disastrous） effect （influence） on…。
A multitude of factors could account for （contribute to / lead to / result； in / influence） the change （increase / decrease / success / failure / development） in…。
In 2000， it increased （rose / jumped / shot up） from 5 to 10 percent of； the total （to 15 percent / by 15 percent）。
By comparison with 2002， it decreased （dropped / fell） from 10 to 5； percent （to 15 percent / by 15 percent）。
It accounts for 15 percent of the total.；There were 100 traffic accidents in April， an increase of 5 percent in a； five-month period. By 2002， only （less than / more than / almost / about / over/ as many as）； three quarters （40 percent of / one out of five / one in four） college population （graduates / housewives） as against （as compared with） last year （2002） preferred to （liked）…。
With the development （improvement / rise / growth / general recognition /； acknowledgement / realization） of…， vast changes awaits this country's society. Now people in growing （ever-increasing / significant） numbers are； beginning （coming / getting） to believe （realize / recognize / understand / accept / see / be aware） that…。
According to a（n） recent （new / official） study （survey / report /； poll），…。
History （Our society） is filled （abounds） with the examples of…。；The story （case / instance / situation） is not rare （isolated / unique），； it is one of many examples （typical of dozens）。
A （one） recent （new / general / nationwide） study （survey / poll /； investigation） conducted （taken） at a university by （officials / scientists / experts） indicates （reveals / suggests / shows / proves / demonstrates） that…。
According to （As can be seen in / As is shown in） the figures （statistics； / findings / data / graph / table） released （provided） by the government （an institute）， it can be learned （seen / predicted） that…。
There is （no） good （every / little / sufficient / considerable / strong）； evidence （proof） to Personal experience （Examples I heard / read of） leads me to conclude； that…。
We must admit the undeniable fact that…。；No one can deny （ignore / doubt / overlook / obscure / brush aside） the； fact that…。
Experience （Evidence） suggests （shows） that…。；Take for example…who （that）…。；The same is true of…。；As the saying goes，“…?！?#61548；
1）中間段的一般特征①篇幅一般比開頭段和結(jié)尾段長。
②每段有相應(yīng)的主題句。
③包含定義、解釋、描寫，說明主題思想的擴展句可以采用實例、數(shù)據(jù)或個人經(jīng)歷等寫作手段。
④不同種類的段落采用不同的擴展手段。
2）中間段的具體特點①所涉及內(nèi)容應(yīng)該準(zhǔn)確、清楚，頗具說服力；②段落中一定具備主題句；③段落內(nèi)容應(yīng)該保持完整、統(tǒng)一，沒有說明不足之處或多余冗長的細節(jié)；④內(nèi)容順序安排合理，邏輯性較強；⑤段落之間連貫自然；⑥段落中討論的內(nèi)容主次分明，材料比例適當(dāng)；⑦詞與句型運用合理并且有變化。
3）中間段展開的基本方法①列舉法例文：There are a number of ways for us to keep fit. First， no matter how busy we are， we should have exercise every day to strengthen our muscles. Second， it is important to keep good hours. For example， if we are in the habit of going to bed early and getting up early， we can avoid overworking ourselves and get enough sleep. Finally， entertainment is also necessary so that we may have some moments of relaxation. If we follow those instruction. We will certainly be in good health.②比較對比法例文：The older form of communication is speech. In the beginning of human history， people could only use direct verbal speech to communicate. But it had many shortcomings. For instance， we could not speak to a person far away when we needed. So distance was a problem. And the spoken word could not be kept secret easily. So people wanted to invent a new method of communication. The next big step forward in communication was the invention of writing. Writing is one of human being's most important inventions. It solved the problem of distance and keeping secrets， but it too had disadvantages. The written word could not be passed on quickly， so people tried to find a new quicker method of communication. The most recent development had been electronic means of communication， including the wireless telegraph， radio， telephone and television. The invention and use of electronic means has solved all the problems mentioned above. They are the most effective methods of communication. People will certainly try their best to invent even more modem and useful methods.③因果法例文：The hamburger is the most popular food item in the United States. Every year Americans consume billions of them. They are sold in expensive restaurants and in humble diners. They are cooked at home on the kitchen stove or over a barbecue grill in the backyard. Why are they so popular？
First， a hamburger is extremely easy to prepare. It is nothing more than a piece of ground beef， cooked for a few minutes. Then it is placed in a sliced bun. Nothing could be simpler. Even an unskilled cook can turn out hundreds of them in an hour. Besides that， the simple hamburger can be varied in many ways. You can melt some cheese on top of the beef to create a cheeseburger. You can also add some grilled bacon for an interesting flavor contrast. In addition， you can garnish the hamburger with other things such as lettuce， tomato， onion， mushrooms， avocado， pickles， hot pepper， ketchup， relish， mayonnaise， mustard or whatever you wish！
④例證法例文：The saying“No pains， no gains”is universally accepted because of the plain yet philosophical moral it teaches： if one wants to achieve something， he has to work and tolerate more than others. The saying is true of any pursuit man seeks. A case in point is boxing. While we heap cheers on the winner， few happen to imagine that his gold belt is won at the cost of his sweat， tears， blood， even life over years before the arrival of that exciting moment.⑤發(fā)展過程法例文：To build your own sunscope， get a carton and cut a hole in one side， big enough to poke your head through. Paste white paper on the inside surface that you will be facing. Then punch a pinholesintosthe opposite side high enough so that the little shaft of light will miss your head. For a sharper image you can make a better pinhole by cutting a one-inch square hole in the carton， taping a piece of aluminum foil over this hole， and then making the pin-hole in the foil. Finally， tape the box shut and cover all light leaks with black tape.⑥定義法例文：Diligence is the key to success. It means persistent work and does not mean that we are to exert ourselves all day and night without rest， without food and without sleep. The true meaning of diligence is the careful use of time for the purpose of improvement， or to work persistently without any waste of time.⑦分類法例文：Nowadays the news media mainly consists of radio， television and newspapers. Each type has its own advantages and disadvantages. Newspapers are the oldest form for communicating the news. Today many people still begin their day by reading the morning paper whileshavingsbreakfast， and end their day by reading the evening paper whileshavingsdinner. The invention of the radio has had a tremendous influence on the world. It is able to bring up-to-minute news to distant places in a matter of seconds. Thus the development of the radio has made the world a smaller place. Television is the most recently developed device for communication. It allows us to see as well as to hear the news. The fact that it enables people to see visual images has had a considerable effect on our perceptions of world event. 4）中間段的常用核心句型Although the popular belief is that…， a current （new / recent） study； （survey / poll / investigation） indicates （shows / demonstrates） that…。
Common sense tells us that…。；The increase （change / failure / success） in…mainly （largely / partly）； results from （arises from / is because of）…。
The increase （change / failure / success） in…is due to （owing to /； attributable to） the fact that…。
Many people would claim that…。；One may attribute （ascribe / owe） the increase （decrease / change ） to…，； but…is not by itself an adequate explanation. One of the reasons given for…is that…。；What is also worth noticing is that…。；There are many （different / several /a number of / a variety of）causes； （reasons） for this dramatic （marked / significant） growth （change / decline / increase） in…。 First，…。 Second，…。 Finally，…。
There is no evidence to suggest that…。；Why are （is / do / did）…？ For one thing，…。 For another，…。；Another reason why I dispute the above statement is that…。；It gives rise to （lead to / bring /create） a host of problems； （consequences）。
There are numerous reasons why…， and I shall here explore only a few of； the most important ones. It will exert （have / produce） profound （far-reaching / remarkable /； considerable / beneficial / favorable / undesirable / disastrous） effect （influence） on…。
A multitude of factors could account for （contribute to / lead to / result； in / influence） the change （increase / decrease / success / failure / development） in…。
In 2000， it increased （rose / jumped / shot up） from 5 to 10 percent of； the total （to 15 percent / by 15 percent）。
By comparison with 2002， it decreased （dropped / fell） from 10 to 5； percent （to 15 percent / by 15 percent）。
It accounts for 15 percent of the total.；There were 100 traffic accidents in April， an increase of 5 percent in a； five-month period. By 2002， only （less than / more than / almost / about / over/ as many as）； three quarters （40 percent of / one out of five / one in four） college population （graduates / housewives） as against （as compared with） last year （2002） preferred to （liked）…。
With the development （improvement / rise / growth / general recognition /； acknowledgement / realization） of…， vast changes awaits this country's society. Now people in growing （ever-increasing / significant） numbers are； beginning （coming / getting） to believe （realize / recognize / understand / accept / see / be aware） that…。
According to a（n） recent （new / official） study （survey / report /； poll），…。
History （Our society） is filled （abounds） with the examples of…。；The story （case / instance / situation） is not rare （isolated / unique），； it is one of many examples （typical of dozens）。
A （one） recent （new / general / nationwide） study （survey / poll /； investigation） conducted （taken） at a university by （officials / scientists / experts） indicates （reveals / suggests / shows / proves / demonstrates） that…。
According to （As can be seen in / As is shown in） the figures （statistics； / findings / data / graph / table） released （provided） by the government （an institute）， it can be learned （seen / predicted） that…。
There is （no） good （every / little / sufficient / considerable / strong）； evidence （proof） to Personal experience （Examples I heard / read of） leads me to conclude； that…。
We must admit the undeniable fact that…。；No one can deny （ignore / doubt / overlook / obscure / brush aside） the； fact that…。
Experience （Evidence） suggests （shows） that…。；Take for example…who （that）…。；The same is true of…。；As the saying goes，“…?！?#61548；