英语四级作文是大学英语考试的重要组成部分，而掌握一些常用句式对于提高作文水平至关重要。以下是一些关键的句型和表达方式，可以帮助你在写作时构建逻辑清晰、表达准确的文章。
1. **开头句式**：
- `Recently, the problem of … has aroused people’s concern.` 这个句式用来引入当前热门或亟待解决的问题。
- `Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.` 适用于讨论技术进步的影响，尤其是互联网。
2. **引出主题**：
- `Nowadays, (overpopulation) has become a problem we have to face.` 引入当前的社会问题，如人口过剩。
- `It is commonly believed that… / It is a common belief that…` 描述普遍看法或共识。
- `Many people insist that…` 表达多数人的主张。
3. **阐述观点**：
- `With the development of science and technology, more and more people believe that…` 随着科技的进步，越来越多的人持有某种观点。
- `A lot of people seem to think that…` 描述大众的普遍看法。
4. **呈现不同观点**：
- `People’s views on… vary from person to person. Some hold that… . However, others believe that…` 展示对立观点，展示辩论的双方。
- `Attitudes towards (drugs) vary from person to person.` 这个句式适用于探讨对某一现象（如药物滥用）的不同态度。
5. **结尾句式**：
- `Taking all these factors into consideration, we naturally come to the conclusion that…` 在综合考虑所有因素后，得出结论。
- `Hence/Therefore, we’d better come to the conclusion that…` 结合前文分析，提出最终建议或结论。
- `There is no doubt that (job-hopping) has its drawbacks as well as merits.` 用于平衡地看待一个话题的正反面，如跳槽的利弊。
6. **提出建议**：
- `It is high time that we put an end to the (trend).` 强烈呼吁停止某种趋势。
- `It is time to take the advice of … and to put special emphasis on the improvement of …` 提倡采纳建议并强调改进的必要性。
- `Only in this way can we…` 表明只有采取特定方法才能解决问题。
了解并熟练运用这些句式，可以帮助你在英语四级作文中有效地表达思想，结构化文章，同时增强说服力。在实际应用中，要根据具体的作文题目和内容灵活调整，避免模板化的表述，确保文章的原创性和深度。
