II．……play（s）an important role／part in．．．
Computers play an important role in science and technology．
Computers play a more and more important role in our life．
First,...Second,…Athird contributing cause is…
All this contributes to…
举例段
Today, if you want to…, …is absolutely necessary.
For example, …
Life is filled with examples.
利弊对比段
People who advocate claim that…..For one thing….. For another ….. All these point to the indispensability of…..
The following reasons can account for my preferences（bias/tendency）
Thank you for coming to … today. And I am delighted to announce that I am running for …
原因段
There are many reasons responsible for this problem, and the following are the typical ones.
Advertisement plays an informative role in our daily life．
In the past，letters played a decisive role in long-distance communication．But now，telephone，email，fax have taken their place．
With the rapid development of science and technology，people can get a college degree by taking online-courses at home．
With the current social and technological developments，employees with more knowledge and higher academic degrees are needed．
With the rapid increase of China\'s population，housing problem is becoming more and more serious．
With more and more women entering society，people\'s attitude towards women is changing．
From a recent letter from Mr. Chin I am glad to learn that you have returned to the University. I hope you have been getting along well with your life and studies.
Next I would explore some evidence(proofs/supporting arguments)
Now please allow me to look into some arguments which prop up my choice.
What follows, I will dwell on why I am in favor of this side.
This phenomenon is due to several factors.
The first reason is that….
What’s more…
Most important of all …
Foห้องสมุดไป่ตู้ one thing…
In addition,…
The main reason is that…
IV．When it comes to．．．，some people think／believe that．．．，others argue／claim that opposite／reverse is true．There is probably some truth in both arguments／statements，but．．．
Compared with cars，bikes have their advantages and disadvantages．
Although computers bring people a lot of convenience，they have many disadvantages．
．．．．has many advantages．For example，．．．However，just as every coin has two sides，．．．has its disadvantages．
Agood case in point…
Another good illustration is…
In short…
It goes with out saying that …bring …many bad effects.
Obviously,…
Besides,…
What makes it even worse is that ….
III．With the development of．．．，
With the development of our economy，m any Chinese families can afford a car．
With the development of our economy and society，pollution is more and more serious．
You have no idea how excited I was when I received your letter! I was nearly crazy!
I am sorry for not having written to you for such a long time. I am afraid you must think I have forgotten you and the whole family. Actually I really miss you, but I have been busy preparing my exam these days. And now I have passed the exam and feel very relaxed as if aheavy burden has been removed. I can’t help waiting to write to you and so here I am.
The reasons why I side with…are listed as follows.
They consider it unnecessary to….The reasons for this is not far to seek.
It is almost half a year since you saw me off. I can still vividly recall the impressive scenes you gave. And I could never forget what affectionate care you showed me by helpingme carry my suitcase. You can imagine how I have been missing you these days.
书信开头段
A Letter to a Schoolmate
信头：
写信人地址
写信日期
信内地址：
收信人姓名
收信人地址
称呼/称谓Dear Xiao Wang;
正文…………
结束问候语Yours,
签名
抒发想念
How time flies! And it was five months since you left. Do you know how we have been missingyou lately?
It is hard to believe two years have passed since I left Beijing for Japan. How are you going on these days?
高兴收到来信
Thanks for your letter on June 1st. I am now answering your letter and telling you myopinion.
I am glad to receive your letter of … and thank you for your season’s greetings.
演讲开头段
Good evening, …
Today I am very glad to … At first, I would like to introduce myself to you.
写作总结
一般开头段：
I．……has both advantages and disadvantages．
Obviously television has both advantages and disadvantages．