Ⅰ.阅读理解
A
Marissa Sumathipala，a student at Broad Run High School outside of Washington，D.C.，was practicing with her recreational figureskating team when she crashed with another skater.Her head hit against the ice heavily.Everything went black.
Up to that point，Sumathipala’s entire life had centred around her sport—her daily schedule，exercise routine，even her diet.She had hopes of making the 2018 Olympic team.The fall on the ice would change everything，including her direction.
Sumathipala had a brain injury and it ended her skating career.Symptoms lasted for years.Her memory felt unclear at times.She’d find herself dizzy，sick，or exhausted.Sumathipala consulted doctors，so many that she “lost count”. But no one had answers.
Sumathipala began to realize that there was so much unknown about the brain.She set out to find the answers herself，a path that would eventually bring her to Harvard University，where she’d concentrate on the human brain.Throughout her four years，Sumathipala homed in on brain science.She worked with the McCarroll Lab at Harvard Medical School，helping develop a new method for sequencing synapses(神经突序列) in the brain，which are crucial for memory and learning.Even as an undergraduate，her colleagues were so struck by how mature her thinking already was about science that she quickly became a trusted and valued member of the lab.
Also，Sumathipala competed with the Harvard Figure Skating Club all four years.She helped increase its membership and introduced new skaters to the sport she still loves.“I spent a long time struggling with my identity，”she said.“Growing up I was just a skater and then，when I got injured，I had to rebuild my identity.Then I was a scientist.Now，I identify as being both a skater and a scientist.”
Reflecting on her years at Harvard，Sumathipala said one of the things she’s most grateful for is seeing how things have come full circle for her.
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语篇解读 本文是一篇记叙文，讲述了玛丽莎·苏马蒂帕拉因脑部受伤，导致记忆受损，被迫放弃滑冰转而专注于人脑研究，在科学领域有所建树的同时又致力于滑冰事业的故事。
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1．What do we know about Sumathipala’s injury?
A．It stopped her skating eventually.
B．It led to her loss of eyesight.
C．It changed her life direction.
D．It was easily cured by doctors.
答案 C
解析 细节理解题。根据第二段中的“The fall on the ice would change everything，including her direction.”可知，苏马蒂帕拉的受伤改变了她的人生方向。故选C。
2．In what way did Sumathipala think she could find the answer to her disease?
A．Turning to doctors.
B．Going on practicing.
C．Rebuilding her identity.
D．Doing research on brain herself.
答案 D
解析 细节理解题。根据第四段前三句可知，她认为专注于人脑研究会帮助她找到答案。故选D。
3．What does the underlined phrase “homed in on”in paragraph 4 probably mean?
A．Focused on. B．Returned to.
C．Attended to. D．Stayed at.
答案 A
解析 词义猜测题。根据画线词上文“bring her to Harvard University，where she’d concentrate on the human brain”可知，苏马蒂帕拉在哈佛大学就读期间专注于人脑研究。由此可推知，画线短语词义与focus on接近，意为“专注于”。故选A。
4．What made things come full circle for Sumathipala?
A．Deep love for figureskating.
B．Her determination to achieve life goals.
C．The praise from her lab colleagues.
D．Good relationship with new skaters.
答案 B
解析 推理判断题。通读全文尤其根据倒数第二段中的“Growing up I was just a skater and then，when I got injured，I had to rebuild my identity.Then I was a scientist.Now，I identify as being both a skater and a scientist.”可推知，事情回到原点是因为她拥有坚定的实现目标的决心。故选B。
