题型:语法填空(语篇) 题类:常考题 难易度:困难
陕西省西安市莲湖区2019-2010学年高二下学期英语期末联考试卷
Scientists from Britain and Kenya may have found a way to control malaria (疟疾) and possibly destroy one of the world's most dangerous (disease). The scientists say they have found a microbe (微生物) that prevents mosquitoes from being infected with the organism causes the disease.
A report on the research was published in Nature Communications. It says the microbe (complete) protects the insects from infection. The microbe (call) Microsporidia MB. The scientists found it inside the body of mosquitoes (live) around Lake Victoria in Kenya. Experts say they do not know how the microbe prevents the mosquitoes from carrying the malaria. But they suspect that it affects the mosquito's (nature) defenses so the insect does not become (infect).
The researchers say the next step is to study ways to release the microbe-carrying mosquitoes the wild. Malaria kills about 400,000 people every year. The disease spreads to people through mosquito bites. Mosquito nets and insect-killing chemicals (help) people fight against malaria over the past 20 years. This is especially the case in African countries south of the Sahara Desert. , mosquitoes in some areas are becoming resistant to chemical products. The World Health Organization (WHO) predicts that the number of malaria deaths could reach 769,000 or higher this year.
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