Unit 2 Cloning.阅读理解A(2016高考全国乙卷)I am Peter Hodes，a volunteer stem cell courier.Since March 2012，Ive done 89 tripsof those,51 have been abroad.I have 42 hours to carry stem cells (干细胞) in my little box because Ive got two ice packs and thats 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，weve 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 checkin desk at Providence，the lady on the desk said：“Well，Im really sorry，Ive got some bad news for youthere 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 patientplease，please，youve 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，rerouted(改道) me through Newark and got me back to the UK even earlier than originally scheduled.For this courier job，youre consciously aware that in that box youve got something that is potentially going to save somebodys life.【语篇导读】本文是一篇记叙文。大家都知道，医生是救死扶伤的典范，作者虽然不是医生，但他的工作也与很多人的性命息息相关，大家快来读一读文章，了解一下他的工作吧！1Which of the following can replace the underlined word “courier” in Paragraph 1?AproviderBdelivery manCcollector Dmedical doctor解析：选B。词义猜测题。根据画线单词后的Ive done 89 trips以及.from the time the stem cells are harvested from a donor to the time they can be implanted in the patient，weve got 72 hours .可知，“我”是一个运送干细胞的人，运送有严格的时间限制，故B项“送货员”与之相符合。其他三项的意思：provider供应者；collector收集者，收藏家；medical doctor医生。2Why does Peter have to complete his trip within 42 hours?AHe cannot stay away from his job too long.BThe donor can only wait for that long.CThe operation needs that much time.DThe ice wont last any longer.解析：选D。细节理解题。根据第一段的I have 42 hours to carry stem cells in my little box because Ive got two ice packs and thats how long they last.可知，保存干细胞的冰只能维持42个小时，所以“我”必须在这个时间内送达，D项与之相符合。A、B、C三项在文中未提及。3Which flight did the woman put Peter on first?ATo London. BTo Newark.CTo Providence. DTo Washington.解析：选B。细节理解题。根据第二段的最后一句She arranged for a flight .for me，rerouted me through Newark and got me back to the UK .可知，她先安排“我”去了Newark，然后再转到英国，故选B项。BFor foreigners, entering a public toilet in China can be a horrifying experience. In the 1990s, a third of all complaints to tourism officials in Beijing concerned the design, and the bad smell of public toilets.China has battled smelly toilets for at least 2,000 years. In the Kingdom of Wei (220266 AD.), visitors to the palace bathrooms would find boxes to cover their nose and ward_off unpleasant smells. Both flushing (冲水) toilets and toilet paper were invented in China, however, only for the use of the emperor.Today Chinese scientists have claimed victory in their battle to improve public restrooms, introducing a bacterial spray that can almost get rid of all the bad smell. First, a set of six types of bacteria work to break down the smelly compounds and then a perfume made from orange skin lightly scents (使芳香) the air. The “smellfree toilet” study from the Chinese Academy of Science was declared the “ultimate” cure to an_“urgent”_national_issue.“Five scientists have worked on this from 2011 to the beginning of this year，” said Dr. Yan Zhiying, a bacteriologist with the academys Chengdu Institute of Biology, adding that they had spent &140,000 on the project.“Some local government officials here visited a sewage(污水) plant and saw that the treatment technology had come from Japan. They wanted a homegrown solution so they asked us to work on it，” he added.“We obtained bacteria from all types of waste from humans, pigs, chicken and ducks, and we tested our compounds one by one，” he said.“The smells coming out of public toilets, or trash cans, are made up of more than 160 different compounds，”he explained, adding that their bacteria spray can change and absorb many of them.He boasted that the Chinese formula (配方), which costs only around 5 per liter, has no side effects and can be used to remove any bad smell.4The underlined words “ward off” in Paragraph 2 can be replaced by _.Akeep out Btake outCgive ont Dcome out5The underlined phrase “an urgent national issue” refers to _.Athe treatment of sewageBa horrifying experienceCthe bad smell of public toiletsDthe 160 smelly compounds6Which has not been mentioned as an advantage of the bacteria spray?ALow price. BNo side effects.CRemoving bad smells. DBeautiful design.7Which can we infer after the spray is used in toilets in China?APeople neednt use flushing toilets.BA perfume is given off in the air.