精选优质文档-倾情为你奉上Unit 1-1Catching crabs1In the fall of our final year, our mood changed. The relaxed atmosphere of the preceding summer semester, the impromptu ball games, the boating on the Charles River, the late-night parties had disappeared, and we all started to get our heads down, studying late, and attendance at classes rose steeply again. We all sensed we were coming to the end of our stay here, that we would never get a chance like this again, and we became determined not to
