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" Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt. "Now, I can
" Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt. "Now, I can
admin
2023-03-06
31
问题
" Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt. "Now, I can see people’s faces." The 65-year-old is one of six people in the world to receive gene therapy for a【C1】________type of inherited eye disease【C2】________choroideremia (an eye disease). The first published【C3】________of the trial, released today, suggest that【C4】________people’s genes can stop the disease from causing blindness—and【C5】________sight in those whose vision has become【C6】________.
Choroideremia is caused by【C7】________in the CHM gene. In those who have the disease, a【C8】________of REP-1 means that cells in the eyes stop working and slowly begin to【C9】________causing blindness. Enter gene therapy, which uses a virus to insert a【C10】________copy of a gene into cells with a gene defect and could【C11】________be used to treat many genetic conditions. Robert MacLaren of the University of Oxford and his colleagues decided to see if it could【C12】________choroideremia. Starting two years ago with Wyatt, they【C13】________a virus carrying a corrective copy of the CHM gene into the eyes of people with choroideremia. Today the team【C14】________that of the six people who received the treatment six months【C15】________or longer, all have described【C16】________in their vision. Still, the long-lasting effects of the treatment remain【C17】________Wyatt had the treatment first, so can【C18】________that the benefits seem to last two years,【C19】________he’s just one case. The treatment also can’t replace cells that have been【C20】________destroyed.
【C11】
选项
A、on average
B、above all
C、in principle
D、for example
答案
C
解析
该句说“基因疗法的治疗是给有基因缺陷的细胞注入……,这种疗法可以用于治疗很多基因方面的疾病”。结合第一段指出的“针对无脉网络膜的基因疗法尚处于试验阶段”,可知基因疗法的疗效都只是在理论阶段,所以推断用此方法去治疗别的基因类疾病也只能是理论上的,故此处选C项in principle,表示“原则上,理论上”。
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0
考研英语一
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