英语四级考试的结束语可以根据不同的写作主题和风格来选择，以下是一些常见的英语四级作文结束语类型和示例：

结论总结型

"In conclusion, the findings of our study illustrate that..."

"Thus, it's evident that the strategies outlined above hold the key to..."

"From what has been discussed / mentioned above, we may conclude that ..."

引发思考型

"As we move forward, the implications of this discovery call for further exploration"

"Only in this way can we..."

呼吁行动型

"It is high time that we addressed..."

"Adopting these practices would not only... but also..."

"Therefore, it is not difficult to draw / come to..."

总结并强调

"In a word, the whole society should pay close attention to the problem of..."

"But ______and ______have their own advantages. For example, while_____. Comparing this with that, however, I prefer to______. "

转折型

"As to whether it is a blessing or a curse, however, people take different attitudes."

根据具体的写作内容和目的，可以选择合适的结束语来总结全文、引发读者思考或呼吁行动。希望这些示例能帮助你写出更精彩的英语四级作文结尾。