A
I am Peter Hodes, a volunteer stem courier. Since March 2012, I've done 89 trips of those , 51 have been abroad, I have 42 hours to carry stem cells（干细胞）in my little box because I've got two ice packs and that's how long they last, in all, from the time the stem cells are harvested from a donor(捐献者) to the time they can be implanted in the patient, we’ve got 72 hours at most, So I am always conscious of time.
I had one trip last year where I was caught by a hurricane in America. I picked up the stem cells in Providence, Rhode Island, and was meant to fly to Washington then back to London. But when I arrived at the check-in desk at Providence, the lady on the desk said: “Well, I’m really sorry, I’ve got some bad news for you--there are no flights from Washington.” So I took my box and put it on the desk and I said: “In this box are some stem cells that are urgently needed for a patient--please, please, you’ve got to get me back to the United Kingdom.” She just dropped everything. She arranged for a flight on a small plane to be held for me, re-routed(改道)me through Newark and got me back to the UK even earlier than originally scheduled.
For this courier job, you’re consciously aware that in that box you’ve got something that is potentially going to save somebody’s life.
21. Which of the following can replace the underlined word “courier” in Paragraph 1?
A. provider B. delivery man C. collector D. medical doctor
22. 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 very much.
D. The ice won’t last any longer.
23. Which flight did the woman put Peter on first?
A. To London. B. To Newark. C. To Providence. D. To Washington.
本文是一篇记叙文。主要讲述了作者在一次运送造血干细胞途中的一段经历，表现了人们之间的友爱。
21.推理判断题。根据文章第一段第三句 “from the time the stem cells are harvested from a donor to the time they can be implanted in the patient” 可以推测，“我”负责的时间段是当干细胞从捐献者身体里取出之后到送到患者那里，可知“我”的身份像一个投递员（delivery man）。A项，意为“供应商”，C项，意为“收集者”，D项，意为“药物医生”，均不符合文意。故正确答案为B。
22.细节理解题。根据文章第一段第二句 “I have 42 hours to carry stem cells in my little box because I've got two ice packs and that’s how long they last” 可知，“我”有42小时来用“我”的小箱子携带干细胞因为“我”有两个冰袋，并且能持续制冷42小时。超过了42小时，冰袋就不会再持续维持低温了。故正确答案为D。
23.细节理解题。根据文章第二段最后一句 “re-routed me through Newark and got me back to the UK even earlier than originally scheduled” 可知，在“我”说了“我”的处境以后，值机柜台的服务人员为“我”安排了一架小飞机并为“我”改道经过 Newark 并返回英国。所以 Peter 首先到达 Newark。故正确答案为B。
