首页
登录
职称英语
Two groups of scientists demonstrated last week for the first time that the
Two groups of scientists demonstrated last week for the first time that the
游客
2023-09-01
47
管理
问题
Two groups of scientists demonstrated last week for the first time that the body launches a massive, effective counter-attack on the virus soon after infection of HIV begins. If doctors can figure out how to reproduce that early, powerful immune response, they might be able to develop better treatments to (47)______ stages of the disease. The researchers should be (48)______—and more than a bit of luck. After all, to study someone at the beginning of a relatively (49)______ phase of the HIV infection, they had to find people who did not yet realize they had contracted the virus. It (50)______ that at least a third of HIV-infected people develop a fever or a severe sore throat within a few weeks to months after first (51)______. Such signs, which usually clear up in their own, can easily be (52)______ as a bad flu. In order to identify seven young men suffering from a primary HIV infection, the researchers took this project by (53)______ in hospital emergency rooms and talking to colleagues.
Using advanced laboratory tests that had been developed only in the past few years, both sets of scientists discovered an (54)______ growth of virus in the men’s blood streams. Each liter of the men’s blood contained as many as 10 million infectious viruses.
Within days after the virus burst, the researchers measured a rapid increase in the bloodstream of the number of anti-HIV antibodies(抗体). These Y-shaped bits of protein sought out the virus and targeted it for (55)______. Once the antibody attack reached full scale in the seven test subjects, the level of HIV in the bloodstream dropped (56)______. In the majority of cases, the researchers could detect little or no virus two to three weeks later. In other words, the normal immune system can shut down the AIDS virus. Now researchers must figure out exactly how the body puts together this early effective defense and how the virus manages, years later, to avoid it.
Word Bank:
A. destruction I. abruptly
B. interrupt J. segregation
C. impair K. testifies
D. residing L. lively
E. misdiagnosed M. explosive
F. exemplified N. silent
G. persistent O. exhausting
H. exposure
[br]
选项
答案
G
解析
单从句子结构上看,空中可填入形容词与be构成系表结构,也可以填入过去分词构成被动语态。此处说科学成果的取得不能只靠一点运气,言外之意是强调研究者需要献身精神(这一点从后文的内容中也可推知)。persistent意为“坚持不懈的,持之以恒的”,与此处的语义相符,因此G为答案。L. lively“活泼的”和N. silent“沉默的”与科研的语境不符:O. exhausting不能修饰人。此处不强调被动,因此排除E. 和 F。
转载请注明原文地址:http://tihaiku.com/zcyy/2975182.html
相关试题推荐
Scientistshavediscoveredstrandsofgeneticcodelinkedtoshortsight,th
Scientistshavediscoveredstrandsofgeneticcodelinkedtoshortsight,th
Scientistshavediscoveredstrandsofgeneticcodelinkedtoshortsight,th
Onefactwasclearlydemonstratedbytheearlysleepresearchers:oneparto
Generationgapsarenothingnew.Imperfectcommunicationbetweenagegroups
Generationgapsarenothingnew.Imperfectcommunicationbetweenagegroups
Generationgapsarenothingnew.Imperfectcommunicationbetweenagegroups
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
[originaltext]Americanscientistsaredevelopingmapsthatcanidentifyare
ScientistshavelongbelievedonewaytostoptheEarth’satmospherefromw
随机试题
Therewerenotickets_____forSunday’sperformance.A、possibleB、probableC、avail
Althoughinteriordesignhasexistedsincethebeginningofarchitecture,it
Thesurvivorspouredinandinandpackedtheirbodiessotighttosleeponthe
请阅读Passage1,完成小题。 Passage1Ofallthe
能够从上述资料中推出的是:A.2014年全国风力发电年末累计装机容量同比增量
A.质势 B.病势 C.从化 D.传变 E.易感性不同体质类型所具有的潜
根据所给资料,下列说法正确的是:①从2009年到2012年湖北省棉花总产量虽有升
关于行政处罚决定的表述,不正确的是( )。A.违法行为已构成犯罪的,直接作出判
以下关于法律关系的说法正确的是()。A.法律关系的主体即自然人和法人 B
矿井架空乘人装置运送人员时应遵守的规定( )。A.吊椅中心至巷道一侧突出部分的
最新回复
(
0
)