在大学英语作文中，以下是一些实用的句型：
开头句型
现象描述
Recently, the phenomenon has become a hot topic of discussion.
The problem has come to the public's attention recently.
问题提出
There is a growing concern over the issue.
Many people are puzzled by this phenomenon.
观点引入
As far as I am concerned, the problem is serious.
It is widely believed that...
陈述观点
对比观点
Although some people believe..., others argue that...
On the one hand, there is strong evidence supporting... On the other hand, critics point out that...
因果关系
The increase in pollution is attributed to the rise in industrial output.
The accident was caused by human error.
结尾句型
总结观点
In conclusion, we must take immediate action to solve this problem.
To sum up, the benefits of the new policy outweigh the costs.
提出建议
It is suggested that we should adopt more sustainable practices.
It is imperative that we increase public awareness of environmental issues.
其他句型
强调句型
It is not the strength of the team that matters, but how well they work together.
It is the quality of education that determines the future of a nation.
倒装句型
Not only is he a brilliant scholar, but also an excellent leader.
only in this way can we achieve our goals.
虚拟语气
If I were you, I would take the job offer.
Had I known about the party, I would have attended it.
以上句型可以帮助你构建清晰、有逻辑的英语作文。记得在写作时，根据文章的主题和目的选择合适的句型