精选优质文档-倾情为你奉上UNIT1老伴60多岁中风去世时，那位72岁的退休教授不胜悲痛。无人依靠的生活对他来说将是非常困难的。When his wife died of a stroke in her sixties, the 72-year-old retired professor was overwhelmed by grief. Life would be too difficult for him without anybody to rely on.两位业余画家上个月在伦敦举办了一次个人画展。许多人前去参观，其中包括一些着名的专业画家。Last month two amateur painters held an exhibition of their pictures in London.Many people went to see it, including a few celebrated professors.3.当20世纪80年代中期，7名宇航员在挑战者号的灾难中遇难时，全世界一下子陷入了震惊与悲痛之中。When seven
