首页
登录
职称英语
Could a plant virus have found a way to infect humans? It has always been as
Could a plant virus have found a way to infect humans? It has always been as
游客
2024-02-04
11
管理
问题
Could a plant virus have found a way to infect humans? It has always been assumed that plant viruses cannot infect animals, and vice versa, but plant viruses are known to be【C1】______in human faeces(粪便).
Now Didier Raoult at the University of the Mediterranean in Marseille, France, and his team think a pepper virus is making people【C2】______, too. They have found RNA from the pepper mild mottle virus in the faeces of 7 percent of the 304 adults they tested. Those with the virus were more【C3】______to report fever, abdominal pain and itching(痒)than those without it, his team found.
Not everyone is convinced, however. Because Raoult looked at many possible【C4】______, he would be expected to find a few that randomly【C5】______more common in virus-positive people, says Robert Garry, a virologist at Tulane University in New Orleans, Louisiana. Moreover, in order to enter a cell and replicate, a virus must bind to a receptor on its surface, and a plant virus would be highly unlikely to【C6】______a receptor on a human cell, says Garry.
One possibility, Raoult says, is that the virus does not infect human cells【C7】______. Instead, the naked viral RNA may alter the【C8】______of the cells through a mechanism similar to RNA interference, in which the presence of certain RNA sequences can【C9】______genes on and off. Raoult’s team is now working to【C10】______more direct evidence that the virus does infect humans.
A)abundant F)function K)situations
B)appear G)gather L)surprisingly
C)available H)likely M)symptoms
D)capacity I)recognise N)tested
E)directly J)sick O)turn [br] 【C3】
选项
答案
H
解析
形容词辨析题。分析句子结构可知,空格所在句主语为Those with the virus,空格在系动词were和比较级标志more之后,因此应填形容词。根据句意可知,那些体内携带这些病毒的人——发烧、腹痛和瘙痒。再结合备选项可知,likely“可能的"符合题意。be likely to do意为“可能做……”。
转载请注明原文地址:https://tihaiku.com/zcyy/3421867.html
相关试题推荐
[originaltext]Problemsarealwaysencounteredinone’slifetobefacedand
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
Urbanlifehasalwaysinvolvedabalancingofopportunitiesandrewardsagai
[originaltext]Mathewlivedinabigcity,andalwayshadhishaircutbyth
[originaltext]Mathewlivedinabigcity,andalwayshadhishaircutbyth
Coca-Colahasalwaysbeenmorefocusedonitseconomicbottomlinethanong
随机试题
Whenherealizedhehadbeen______tosignthecontractbyintrigue,hethreate
PeoplewhogrewupinAmericaandWesternEuropehavebecomeusedtotheidea
关于钢筋性能,说法错误的是()。A:设计时应以抗拉强度作为钢筋强度取值的依据
共用题干 患者男性,29岁。3天来高热、头痛、乏力、全身酸痛,行走时小腿疼痛,
公路工程质量评定时,互通式立交工程主要包含的分部工程有( )。 A、桥梁工程
以下不属于国家基本比例尺的是()A:1:1000B:1:1万C:1:10万
患者,男,68岁。3年来小便淋沥不爽,排尿无力,面色酰白,神气怯弱,腰膝酸软,舌
我国《中华人民共和国担保法》规定,一般保证的保证人与债权人未约定保证期间的,保证
试述班主任了解和研究学生的方法。
()是现代社会保障的核心内容,是一国居民的基本保障。A.社会保险 B.社
最新回复
(
0
)