2. 考研
  3. "Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt "Now, I can se

"Before the operation, I would look at someone and all I could see for their face was jelly," says Jonathan Wyatt "Now, I can se

admin2017-01-09  7
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 66-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.
【C5】
选项 A、restore
B、return
C、improve
D、lose
答案A
解析 空格前的and表明前后是并列、顺承的关系，意思相近。空格前是说……基因能防止失明，所以空格后就应该是恢复视力了，故选A项restore“恢复”。
转载请注明原文地址:https://kaotiyun.com/show/ecoZ777K
0

考研英语一

相关试题推荐
随机试题
最新回复(0)