19．Rebecca，who is a 25-year-old woman，has a rare condition．She can remember all the events she has experienced in her life．The events are so vivid，as if they happened just moments ago．But her vivid memories often become a reality．Rebecca said，"When I relive memories，the emotions come back．So if it's something that happened when I was younger，my emotions are about what I felt then．I also re-experience pain．For example，I remember falling over and hurting my left knee when I was three．When talking about it now，I'm getting pain in my left knee．"
However，there are times when Rebecca's memories prove to be too overwhelming，and she has learnt relaxation and mindfulness（聚神） techniques to solve．"At school，it is a hindrance．I'm not very quick at processing things，so there is always so much going through my mind．At night，I have to sleep with the radio on and a soft light．If it's too dark or quiet，my mind just recalls all these memories and I can't sleep，"Rebecca said．
In addition，Rebecca has no control over whether the memories she recalls will be positive or negative-recalling painful experiences with such vividness that she has suffered from post-traumatic （创伤后的） stress disorder．Rebecca said，"Recently，I went back to my old school for my sister's high school graduation．Being in that building again brought all those memories flooding back．I burst into tears and had to leave．"
Rebecca and her mother Mrs．Barnes got in touch with the University of California in 2011．It was there that Rebecca knew she had Highly Superior Autobiographical Memory （HSAM）．It's reported that Rebecca is one of just 80people worldwide，who have HASM．"Finding out about HASM has been such a positive experience．Now，Rebecca has been more positive and able to do things independently，which has been excellent，"Mrs．Barnes said．
28．What's wrong with Rebecca？D
A．She hardly sleeps well at night．
B．She usually gets hurt easily by others．
C．She can't distinguish between reality and dreams．
D．Her vivid memories lead her to experience sufferings．
29．What does the underlined word"hindrance"mean in Paragraph 2？B
A．Priority．
B．Difficulty．
C．Advantage．
D．Opportunity．
30．What can we learn from Paragraph 3？C
A．Rebecca had a strong dislike of going to school．
B．Rebecca was moved to tears at her sister's graduation．
C．Rebecca and her sister once studied in the same school．
D．Rebecca enjoyed a happy life during her high school years．
31．It can be inferred from the last paragraph that RebeccaA．
A．has got her life improved gradually
B．was influenced by her mother to be positive
C．was admitted into the University of California
D．became well-known due to her rare condition．
分析 本文是一篇人物故事类阅读，属于记叙文，主要讲述的是丽贝卡患有一种奇怪的病，她可以非常形象地回忆痛苦，并感同身受．
解答 28．D．细节理解题．根据She can remember all the events she has experienced in her life．The events are so vivid，as if they happened just moments ago．可知，丽贝卡的奇怪的病是可以非常形象地回忆痛苦．故选D．
29．B．词义猜测题．根据第二段I'm not very quick at processing things，so there is always so much going through my mind．At night，I have to sleep with the radio on and a soft light．If it's too dark or quiet，my mind just recalls all these memories and I can't sleep，"Rebecca said．可知，丽贝卡的这个能力在学校时为她带来的是负面的影响．故选B．
30．C．推理判断题．根据Being in that building again brought all those memories flooding back．I burst into tears and had to leave．"可知，在那座建筑里，再次带来了所有回忆的洪水．所以丽贝卡曾经在这所学校就读．故选C．
31．A．细节理解题．根据Now，Rebecca has been more positive and able to do things independently，which has been excellent，"Mrs．Barnes said．可知，现在，丽贝卡已经更积极，能够独立做事情，这是很好的．故选A．
点评 本文是一篇人物故事类阅读，题目涉及多道主旨大意题，细节理解题，推理判断题．做题时学生应仔细阅读原文，把握文章主要内容，联系文章上下文内容并结合所给选项含义，从中选出正确答案，一定要做到有理有据，切忌胡乱猜测．
