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Malaria, the world's most widespread parasitic(寄生蟲引起的) 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 not 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 can 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 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.
小題1:According to paragraph 1, many people don't seek care because___.
A.they can remain unaffected for long
B.it is unusual to seek care
C.they are too poor
D.there are too many people suffering from the disease
小題2:People suffering from malaria___.
A.have to kill female mosquitoes
B.have ability to defend parasites
C.have their red blood cells infected
D.have sudden fever, followed by chills
小題3:Which of the following may be the reason for the wide spread of the disease?
A.Its outbreaks in cities with large populations.
B.Its ability to pass on the virus frequently.
C.Its resistance to global warming.
D.Its ability to defend itself and resist new drugs.
小題4:It can be inferred from the passage that___.
A.no drugs have been found to treat the disease
B.the alternative treatment is not easily available to most people
C.malaria has developed its ability to resist parasites
D.nobody knows what will be the drug to treat the disease
小題5:Which of the following questions has NOT been discussed in the passage?
A.How can we know one is suffering from malaria?
B.How many people are killed by malaria each year?
C.Why are there so many people suffering from malaria?
D.What has been done to keep people unaffected for long?

小題1:C
小題2:C
小題3:D
小題4:B
小題5:D

試題分析:文章介紹痢疾對人的健康的危害,分析人們患瘧疾的原因,瘧疾廣泛傳染的原因和痢疾的治療方法。
小題1:推斷細節(jié)題。根據第一段中的“It is not 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.”可判斷出許多人不進行治療的原因是他們太窮,沒有錢治療瘧疾。選C。
小題2:細節(jié)題。根據第二段中的“Malaria parasites live by eating the red blood cells they infect.”可判斷出人們患瘧疾的原因是他們的紅血球受到了感染。選C。
小題3:細節(jié)題。根據第二段中的“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.”可判斷出瘧疾廣泛傳染的原因是它有保護自己和抵抗新藥的能力。選D。
小題4:細節(jié)推斷題。根據最后一段中的“Successful alternatives that help prevent resistance are already available,but they have been in short supply and are very expensive.”可推斷出由于新的治療瘧疾的藥物缺乏并且很貴,所以大多數(shù)人不能用新的治療方法治療。選B。
小題5:正誤判斷題。根據短文的內容可判斷出短文沒有涉及“做什么來使人們長時間不感染?”選D。
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