例如：
As is well known to us, it is important for the students to know the world outside campus． The reason for this is obvious. Nowadays, the society is changing and developing rapidly, and the campus is no longer
an “ivory[‘aiv?ri] （象牙） tower.
---CET-4写作（开头，中间，结尾）常用句型： A. 开头
1、There is an interesting and instructive picture which goes like this: ______________.
2、_______ has become a hot topic among people, especially among the young, and heated debates are right on their way.
3、Recently, _________ has been brought to such popular attention that _________.
(e.g. Recently, the problem of global warming has
been brought to such popular attention that governments at all levels place it on the top of the agenda.)
4、One of our ancient philosophers said,
______________. Chinese people have always been holding this idea to be one of their standards of morality.
5、No one，regardless of race, religion or nationality, would deny that... 或：Everyone would agree that...
B. 中间
1．建议和解决方法
1）. A great number of solutions are being offered.
Some people suggest that ____________. Others argue that _____________.
2）. But I don’t think it is a very good way to
solve ________. For instance, _________. Worst of all, ___________.
3）. My suggestion to deal with/solve/relieve the problem are as follows. In the first place,…. Secondly,…. Finally
4）. If we let the situation go as it is, …. By that time, …. 如果让这种情况继续发展下去，那么到那个时候，……。
5）. If……, will there be anything that can make me even happier? 如果（我们怎么怎么做），那将没有比这令我更高兴的了。
2. It 结构
1） It is advisable to exercise（拥有）patience in dealing with such complicated situations.
2） It is necessary that young and old people should communicate more with each other.
3） It is certain that fresh air and exercises are more enjoyable and beneficial than medicine. 4） It is well known that many of our problems are caused at least in part by failure to communicate. 5） It seemed to me that the only thing that matters is to learn through failure.
6） It pays in the long run （从长远的角度看……）to introduce new technique.
3. 动名词或分词结构
1） Drinking，eating，and smoking excessively can do severe harm to even a young person's health. 2） The art of communication requires learning the
language and culture of the audience.
4. 递进式结构
1） Fresh vegetables are nutritious（有营养的）；furthermore，they’re cheaper than frozen ones. 2） Helping others will not only bring joy into other people's lives，but also added happiness into our own.
5. 表示重要性或必要性
1） It’s important to set aside time for relaxation，hobbies ，and entertainment as well. 2） A harmonious atmosphere is essential（necessary / critical / indispensable）to achieve success. 3） Global warming can endanger our lives so much
that we are obliged to make a careful study of the problem and try to find out a lasting solution to it.
6. 表示目的
1） The purpose of a test is to show what you have leaned about a subject.
2） The intent is not to catch everyone but rather
to catch enough to spread the word.
3） Competitive sports are recommended to young adults to prepare them for the competitive world of college and business.
7. 表示结果
1） Too much work and too little rest may lead to loss of health.
2） If you try to learn too many things at a time，you may get confused.
3） By consistent hard work we will be able to achieve our objectives （目标）.
8. 表示对比和比较
1） Jobs and work do much more than most of us realize to provide happiness and contentment. 2） Work is more than a necessity for most human
beings；it is the focus of their lives，the source of their identity and creativity.
3） Rather than a punishment or a burden，work is the opportunity to realize one's potential. 4） The more scientists find out，the more questions