首页
登录
职称英语
[originaltext] Malaria, the world’s most widespread parasitic disease, kills
[originaltext] Malaria, the world’s most widespread parasitic disease, kills
游客
2023-07-19
57
管理
问题
Malaria, the world’s most widespread parasitic disease, kills as many as three million people every year — almost all of whom are under five, very poor, and African. In most years, more than five hundred million cases of illness result from the disease, although exact numbers are difficult to assess because many people don’t (or can’t) seek care. It is unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works. In countries like Tanzania, Mozambique, and the Gambia, no family, village, hospital, or workplace can remain unaffected for long.
Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches. As the parasites multiply, they take over the entire body. Malaria parasites live by eating the red blood cells they infect. They also attach themselves to blood vessels in the brain. If it doesn’t kill you, malaria can happen again and again for years. The disease is passed on to humans by female mosquitoes infected with one of four species of parasite. Together, the mosquito and the parasite are the most deadly couple in the history of the earth — and one of the most successful. Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control. Studies show that mosquitoes are passing on the virus more frequently, and there are more outbreaks in cities with large populations. Some of the disease’s spread is due to global warming.
For decades, the first-choice treatment for malaria parasites in Africa has been chloroquine, a chemical which is very cheap and easy to make. Unfortunately, in most parts of the world, malaria parasites have become resistant to it. Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive. If these drugs should fail, nobody knows what would come next.
Questions 26 to 29 are based on the passage you have just heard.
26. Why don’t many people seek care according to the passage?
27. What do we know about people suffering from malaria?
28. Which may be the reason for the wide spread of the disease?
29. What can be inferred from the passage?
选项
A、No drugs have been found to treat the disease.
B、Malaria has developed its ability to resist parasites.
C、Nobody knows the drug to treat the disease.
D、The alternative treatment is not easily available to most people.
答案
D
解析
根据意思相近的两个选项很可能均不是答案的命题规律,[A]和[C]为答案的可能性很小。短文中提到,目前已经有alternatives,但in short supply,价格very expensive,所以说,对大多数人来说,替代性的治疗方法并不容易得到,故答案为[D]。
转载请注明原文地址:https://tihaiku.com/zcyy/2851059.html
相关试题推荐
[originaltext]M:Aren’tyouevenalittlebitdisappointedthatyoudidn’tget
[originaltext]M:Aren’tyouevenalittlebitdisappointedthatyoudidn’tget
[originaltext]Theevidenceforharmonymaynotbeobviousinsomefamilies.But
[originaltext]IfirstwenttoHarrowinthesummerterm.Theschoolhadthebig
[originaltext]Runnersinarelayracepassastickinonedirection.However,m
[originaltext]Runnersinarelayracepassastickinonedirection.However,m
[originaltext]M:Hello,Mary.Fancymeetingyouhere!W:Hi,Peter.Yes,I’mhe
[originaltext]M:Theserviceinthisrestaurantisreallyterrible.W:Right.I
[originaltext]M:Theserviceinthisrestaurantisreallyterrible.W:Right.I
[originaltext]M:Theserviceinthisrestaurantisreallyterrible.W:Right.I
随机试题
[originaltext]W:Right.Researchersstudiedthisandfoundthat(6/7-1)peoplew
Withtheriseofthegreatmetropolis(大都市)intheindustrialera,cityplanning
重度贫血的血红蛋白浓度是()A.<30g/L B.30~40g/L C.
与机械通气时气道压力无关的因素是:A.气道阻力 B.吸呼比 C.胸肺顺应性
定性风险分析工具和技术不包括()A.概率及影响矩阵 B.建模技术 C.风险紧
防止髋关节过伸的重要结构()A.股骨头韧带 B.髋臼横韧带 C.髋臼
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
生物反馈疗法的禁忌症包括()。 (A)有自杀、自伤观念、冲动、毁物、兴奋不合
甲集团是国内大型粮油集团公司,近年来致力于从田间到餐桌的产业链建设,2018年收
筛检的目的是( )。A.对可疑病人进行确诊 B.评价筛检试验的敏感度 C.
最新回复
(
0
)