【步步高】（全国通用）2017版高考英语二轮复习 考前三个月 专题一 阅读理解课件.ppt

30.Why does Peter have to complete his trip within 42 hours? ( ) A.He cannot stay away from his job too long. B.The donor can only wait for that long. C.The operation needs that much time. D.The ice won’t last any longer. 解析　细节理解题。根据第一段的“...because I’ve got two ice packs and that’s how long they last.”一句可知，用于冷藏干细胞的两个冰块只能维护42小时，因此必须在这个时间内将干细胞送达。故正确答案为D。 √ 解析 29 30 31 31.Which flight did the woman put Peter on first? ( ) A.To London. B.To Newark. C.To Providence. D.To Washington. 解析　细节理解题。由第二段可知，由于没有飞往华盛顿的航班，航空公司为作者安排了一架小型飞机。根据该段最后一句“...re--routed(改道) me through Newark and got me back to the UK even earlier than originally scheduled.”可知是先去了Newark，再转到了英国。故选B。 √ 解析 29 30 31 D The meaning of silence varies among cultural groups.Silences may be thoughtful，or they may be empty when a person has nothing to say.A silence in a conversation may also show stubbornness，uneasiness，or worry.Silence may be viewed by some cultural groups as extremely uncomfortable；therefore attempts may be made to fill every gap(间隙) with conversation.Persons in other cultural groups value silence and view it as necessary for understanding a person’s needs. Many Native Americans value silence and feel it is a basic part of communicating among people，just as some traditional Chinese and Thai persons do.Therefore，when a person from one of these cultures is speaking and suddenly stops，what may be implied(暗示) is that the person wants the listener to consider what has been said before continuing.In these cultures，silence is a call for reflection. Other cultures may use silence in other ways，particularly when dealing with conflicts among people or in relationships of people with different amounts of power.For example，Russian，French，and Spanish persons may use silence to show agreement between parties about the topic under discussion.However，Mexicans may use silence when instructions are given by a person in authority rather than be rude to that person by arguing with him or her.In st