大一新生英语是freshman。

“freshman”即指“大一新生”，或指高中一年级的学生（a student in the ninth grade at school）,其复数形式是freshmen。

大二/大三/大四学生分别为sophomore/junior/senior。文中出现与开学相关的词汇有：run-up （事情的）前奏，预备期，the run-up to the new school year 开学季，threaten 威胁，drop out 辍学，退学，gadget 装备。

例句：

这是大一新生长胖的又一原因。

Which is one reason forfreshmanweight gain.

他非常勤奋，三年后考入了清华大学，成为一名大一新生。

He was so diligent that he ended up as a fresher in Qinghua university three years later.