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
64
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
Asrecentlyasthirtyyearsago,manyAmericansbelievedthatusingcreditw
抗流感病毒药奥司他韦属于A.血凝素抑制剂 B.RNA聚合酶抑制剂 C.神经氨
水利工程建设项目应当具备以下条件,方可开展施工准备()A、建设项目可行性研究报告
下列图片属于哪种细胞?( ) A.靶形红细胞 B.椭圆形红细胞 C.缗钱
产业政策既有其重要作用也有其局限性,其局限性主要表现为()。A:可能会影响政府
我国法律效益等级从高到低排列正确的是()。A.宪法、法律、行政法规、地方性法
通常说的“挤兑”是指银行面临的()。A.信用风险 B.市场风险 C.操作
下列关于现金股利、票回购和增发新的说法正确有()。A.三者都会改变股数
图示电路中,电压源单独作用时,电压U=U′=20V;则电流源单独作用时,电压U=
小儿出生后正常情况下造血器官主要是A.卵黄囊 B.中胚叶 C.肝脏 D.骨
最新回复
(
0
)