四级作文是大学英语四级考试中非常重要的一部分，很多同学在写作文时都会遇到开头和结尾的问题。为此，我们可以使用万能的开头和结尾模板来帮助我们更好地完成作文。

开头模板：

1. 对于XX这个话题，我持有不同的看法。

When it comes to the topic of XX, I hold a different view.

2. XX这个问题已经引起了广泛的关注。

The issue of XX has aroused widespread concern.

3. 近年来，XX已经成为了一个热门话题。

In recent years, XX has become a hot topic.

4. XX是一个非常复杂的问题，需要我们从多个角度来看待。

XX is a very complex issue that requires us to look at it from multiple perspectives.

5. XX是一个值得我们深思的问题。

XX is a problem that deserves our deep thinking.

结尾模板：

1. 总之，XX是一个非常重要的问题，我们应该尽早采取措施。

In conclusion, XX is a very important issue and we should take measures as soon as possible.

2. 综上所述，我们应该认真对待XX这个问题。

In summary, we should take XX issue seriously.

3. 总的来说，我们需要更好地面对XX这个问题。

All in all, we need to face XX issue better.

4. 最后，我们需要意识到XX的重要性，并采取行动来解决它。

Finally, we need to realize the importance of XX and take action to solve it.

5. 在未来的日子里，我们需要更加努力地解决XX这个问题。

In the days ahead, we need to work harder to address the issue of XX.