首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Although we already know a great deal about influenza, it is difficult for epidemiologists(流行病学家), who study infectious disease,
Although we already know a great deal about influenza, it is difficult for epidemiologists(流行病学家), who study infectious disease,
admin
2013-11-11
34
问题
Although we already know a great deal about influenza, it is difficult for epidemiologists(流行病学家), who study infectious disease, to【C1】______when and where the next flu epidemic will occur, and how【C2】______it will be. There are three kinds of influenza virus, known as A, B and C. Influenza C virus is relatively stable and causes mild【C3】______that do not spread far through the population. The A and B types are【C4】______, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies which confer(给予)immunity to that strain of virus, but a virus with the capacity to change its character is able to bypass this【C5】______. Variability is less developed in the influenza B virus, which affects only human beings. An influenza B virus may cause a widespread epidemic but will have little effect if【C6】______into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The influenza A virus, which【C7】______affects animals, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the unparalleled pandemic, or world epidemic. Accurate prediction is difficult because of the complication of the【C8】______. A particular virus may be related to one to which some of the population have【C9】______involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence, the ease with which it can be【C10】______and the strength of the opposition it encounters. Scientists, however, have a reliable general picture of the world situation, according to which we may take some precautions.
A)partially I)epidemics
B)guess J)also
C)factors K)attacks
D)equally L)introduced
E)generally M)unstable
F)protection N)infections
G)transmitted 0)predict
H)severe
【C6】
选项
答案
L
解析
此处应填动词。分析句子结构可知if后省略了it is,it指代influenza B virus。再根据主语与所填词的关系,如果表主动用现在分词,如果表被动则用过去分词。可选项有G)transmitted和L)introduced,确定它们是主语的被动动作。introduce into意为“传入,引入”,符合文意。transmit后面一般不接into,而接to表示传染的对象,故排除G)transmitted,选L)introduced。
转载请注明原文地址:https://kaotiyun.com/show/ea27777K
0
大学英语六级
相关试题推荐
A、Theyhavetodotheirownmaintenance.B、Theyhavetofurnishtheirownhouses.C、Theywillfinditdifficulttomaketherest
A、Onemightnotbeindependentwork.B、Theyarenotwellwrittenatall.C、Theyaredifficulttounderstand.D、Neitherwaswritt
A、Studyinghistory.B、Buyinglotterytickets.C、Registeringforcourses.D、Goingtoanartgallery.C女士说电子工程学和艺术史报选的最后限期快到了,而男士正
Pretendingtobehappycanactuallymakeyoumore【B1】______—especiallyifyou’reawoman,accordingtoanewstudy.Researc
A、Thewomenhavemorefreedomandcanshareindecisions.B、Thewomendonothavetobetheheadsofthefamily.C、Thewomen’sr
AsurprisingnumberofJapaneseseemtobeactuallyenjoyingtherecession.Pressedbytheircompaniestoworkfewerhours,they
Researchnowsuggestscompaniesthattrytomakeemployeeshappycouldbenefitfromimprovedlevelsofproductivity.WhereSloug
A、Amancarefulwithmoney.B、Abook-lover.C、Anoisyreader.D、Atrouble-maker.A选项表明,本题考查人物性格或爱好等。由对话中男士提到的BeforeIpaymymon
1.简单描述图表内容2.分析变化的原因3.总结这种变化的趋势或影响
中国正在收紧对房屋抵押贷款的限制,希望能够给房地产市场降温。中国房地产市场使得房价超出了大多数中国人的承受能力。政府表示,第一次买房需要支付的首付从20%提高到30%。购买第二套住房需支付的首付从40%上升到50%。政府禁止对购买第三套住房的人发放贷款。这
随机试题
试画出单相全波可控整流电路的原理电路。(由1台整流变压器、2只晶闸管构成)
一健康男性,输血前肝功能正常,所有肝炎病毒血清学检查指标均为阴性,输血后发生病毒性肝炎,可能因输血而感染的肝炎病毒是()
中毒伴肾功能不全或昏迷患者不宜使用下列哪种方法()
27岁经产妇,妊娠27周出现皮肤瘙痒,巩膜轻微发黄半月,无其他不适。血压126/84mmHg,前次妊娠有同样病史,于产后黄疸自行消退。化验ALT140单位。本例最可能的诊断是
A.糖浆B.微晶纤维素C.微粉硅胶D.PEG6000E.硬脂酸镁溶液片中可以作为润滑剂的是
原始社会规范之所以不能称为“法”,下列对于原因的阐述正确的有()。
按《工程建设项目勘察设计招标投标办法》规定,投标保证金()。
隧道工程的关键工序有()。
A.口唇及口周皮肤B.角化黏膜C.牙龈D.非角化黏膜E.口角区、口唇内侧黏膜固定性药疹的好发部位是()。
将考生文件夹下.HOWA文件夹中的GNAEL.DBF文件删除。
最新回复
(
0
)