首页
登录
职称英语
Recently, the news has been filled with reports of the "bird flu." Asia is o
Recently, the news has been filled with reports of the "bird flu." Asia is o
游客
2024-02-23
44
管理
问题
Recently, the news has been filled with reports of the "bird flu." Asia is on a region-wide health aleft, with governments slaughtering millions of chickens to contain outbreaks of the bird flu in Thailand, Vietnam, Cambodia, South Korea, Japan and China.
Influenza -- commonly called "flu" -- is one of the oldest and most common diseases known to man. It can also be one of the deadliest. The great "Spanish flu" pandemic(传染病)of 1918-1919 was considered the worst plague in history, killing up to 40 million people with half of the world’s population infected in only a few months.
Influenza can also infect many different warm-blooded animals, such as birds. However, the "flu" virus usually develops different variants that are specialized for each species of animal that they infect. Cross species infections are rare.
A flu strain called influenza A(H5N1)appears to have made a successful jump from birds to humans. The viral strain(病毒株)was first isolated from South African birds in 1961. The first known human infection occurred in a Hong Kong child in May of 1997. By the end of 1997, there were 13 confirmed cases and four deaths, all in Hong Kong. In an attempt to stop the spread of the disease, the government of Hong Kong ordered the slaughter of all chickens, ducks, geese, and domestic pigeons.
Human infected with H5N1 so far are thought to have caught the disease from fowl and no person-to-person transmissions have been reported. The World Health Organization, however, fears that the bird flu is highly adaptable and might leap the species barrier. It says anyone exposed to the disease should be quarantined(隔离)to avoid contact with sufferers of regular human influenza. [br] The "Spanish flu" was the worst plague in history because ______.
选项
A、it led to a terrible loss of human life
B、it was the earliest kind of flu
C、it broke out after World War One
D、it infected many animals as well
答案
A
解析
题干中出现的关键词“Spanish flu”带引号并且有大写这个特征,可以据此很快定位到第二段。A)是对原文killing up to 40 million people with half of the world’s population infected的概括,是正确的。B)中的earliest过于绝对;C)不能作为原因。
转载请注明原文地址:https://tihaiku.com/zcyy/3474795.html
相关试题推荐
Recently,thenewshasbeenfilledwithreportsofthe"birdflu."Asiaiso
Recently,thenewshasbeenfilledwithreportsofthe"birdflu."Asiaiso
[originaltext]AmotherinTamilNadu,India,recentlyhadaquestionforou
[originaltext]W:Whathaveyoubeenuptorecently?M:Burningthemidnightoil
Theheatingsystemhasrecentlybeen______tomakeitmoreefficient.A、modified
Recentlytheyoungcoupleshave______argumentswitheachotherfortrifles.A、c
Asksomeonewhattheyhavedonetohelptheenvironmentrecentlyandtheywi
Asksomeonewhattheyhavedonetohelptheenvironmentrecentlyandtheywi
Asksomeonewhattheyhavedonetohelptheenvironmentrecentlyandtheywi
Asksomeonewhattheyhavedonetohelptheenvironmentrecentlyandtheywi
随机试题
NewYorkisoneofthe(11)largeAmericancitiestohave.someofitspolicemen
Whycouldn’tJanetcomeWtheclassofDr.Ellis?[originaltext]M:Hello.MattE
采用adopt;use
Text4MostforecastssuggestthatBritai
图示结构中,柱顶水平位移最小的是()。A. B. C. D.
女性,42岁,风湿性心脏病二尖瓣狭窄伴关闭不全,心电图示心房纤颤。患者休息时就有
我国银行间市场债券结算采用( ),统一通过中央国债登记结算有限责任公司的中央债
通过抑制H+/K+-ATP酶治疗消化性溃疡的药物是()。A.兰索拉唑 B.西
社区服务(活动)方案过程评估一般只能采取( )。A.整体评估法 B.个别评估
关于税收支出的说法不正确的是( )。A.税收支出的目的是取得收入 B.照顾性税
最新回复
(
0
)