词汇: 1) Staircase:a set of stairs, inside a building = stairway a flight (of stairs) flight 表示一段(楼梯) stairwell(well井,stairwell电梯井) question 1: moral (adj.)- _____________(n.)-______________( 否 adj.) - ______________( 否 n.) dilemma 两难处境,进退维艰 e.g. The only way out of this dilemma is to cooperate. 脱离困境 Mary was in a dilemma whether to marry or continue her study. 处于困难的抉择 (主要是两者之间难以抉择) He was thrown/cast into a dilemma. 陷入困局 总结: Paragraphs 2-5 present a picture of what happened immediately after the hit. The initial reaction of people inside the WTC when the building was hit was confused, scary but calm.