英文段落中的各个语句在长度上应该有一定变换，即所谓的长短句之说。短句子适用于表述概念，陈述事实，增强论述的力度，给人以精炼强调之感;长句子经常用于描写，解释和论述一个完整的情况，给人以严谨深刻之感。
英语专四考试预测作文范文一：
题目：On Dormitory Security
写作要求
Dormitories on campus were reported to be broken into and burglaries happened regularly.
What should both students and universities do to reduce this kind of crime?
Write on Answer Sheet Two a composition of about 200 words on the following topic:
On Dormitory Security
You are to write in three parts.
In the fi rst part, state specifi cally what your opinion is.
In the second part, provide one or two reasons to support your idea OR describe your idea.
In the last part, bring what you have written to a natural conclusion or a summary.
Marks will be awarded for content, organization, grammar and appropriatenes. Failure to follow the instructions may result in a loss of marks.
范文：
On Dormitory Security
It is reported that recently in quite a few universities, dormitories on campus have been broken into and burglaries have happened every now and then. In fact, students have complained a lot that burglaries are like nightmares in their college years. I think it’s high time that both students and universities did something to reduce and eliminate this kind of crime.
On the one hand, there are some measures which universities can take. First, universities should have all the dormitory doors and windows checked, find out and repair the broken ones so that thieves cannot go in easily. Second, the number of university security staff should be increased. Security personnel should patrol on campus and cross-question any suspicious person.
On the other hand, students should also do something to protect their belongings. First, when they leave their dormitories, they should keep doors and windows locked to keep out sneak10 thieves.Second, students should lock their valuables11 up in lockers12. In this way, they can reduce the risks of burglaries happening.
In one word, both students and universities should do something to reduce burglaries in dormitories. And only in a safe dormitory can a student live and study happily.
英语专四考试预测作文范文二：
People’s attitudes toward work vary. Some live to work. Others, however, work to live. What is your opinion?
Write on ANSWER SHEET THREE a composition of about 200 words.
You are to write in three parts.
In the first part, state specifically what your view is.
In the second part, support your view with appropriate details.
In the last part, bring what you have written to a natural conclusion or a summary.
You should supply an appropriate title for your composition.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.
范文：
Work as a Part of Life
Some people regard work as the goal of life and spare no pains to pursue a fulfilling career. Others regard work as a means to achieve the value of life, emphasizing the meaning and significance of life itself. I think work is just a part of one’s life. To work means to live, and to live must involves work.
First, when one works, he also lives. There is not a period of time when one is only working but not living. Therefore when one works hard and feels happy about his achievements, he is also living fruitfully. There is no need to say that he just "lives to work". Second, it is impossible to imagine a life without work. Marx once said that work is the basic need of the human race. Work is not only a breadwinning process, but is also a process of exploring the unknown world, creating beauty, providing help, expressing love, friendship and care. Anyone would hate a life without work, and I think only those who work well enjoy their life best. To conclude, I am firmly convinced’ that work is a part of life. So enjoy your work, for when you make progress and have fun in your work, you are also enjoying your life.