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.
我是彼得·霍德斯，一名志愿者干细胞快递员。自2012年3月以来，我已经完成了89次运输任务，其中51次是在国外。我有42小时的时间携带干细胞，因为我有两个冰袋，这就是它们的持续时间。总的来说，从干细胞从捐献者身上采集到可以植入患者体内的时间最多有72小时，所以我始终意识到时间的重要性。

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 fights 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 plance to be held for me.re-routed(改道)me through Newark and got me back to the UK even earlier than originally scheduled.
去年我有过一次旅行，当时我在美国遇到了飓风。我在罗德岛的普罗维登斯取到了干细胞，然后计划飞往华盛顿，再返回伦敦。但是当我到达普罗维登斯的值机柜台时，柜台的女士对我说：“很抱歉，我有一些坏消息要告诉你——从华盛顿没有航班。”于是我拿起我的盒子，放在柜台上，我说：“这个盒子里有急需用于患者的干细胞——请，请你一定要帮我回到英国。”她立刻放下了所有的事情。她为我安排了一架小型飞机的航班，并为我重新规划了通过纽瓦克的路线，让我比原计划更早地回到了英国。

For this courier job, you’re consciously aware than that box you’re got something that is potentially going to save somebody’s life.
对于这份快递员工作，你清楚地意识到你手中的盒子里装着可能拯救某人生命的东西。

1. Which of the following can replace the underlined word “courier” in Paragraph17
   A provider B delivery man
   C collector D medical doctor
   答案：B

2. Why does Peter have to complete his trip within 42hours?
   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.
   答案：D

3. Which flight did the woman put Peter on first?
   A. To London B. To Newark
   C. To Providence D. To Washington
   答案：B