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A single night of taking the drug Ecstasy can cause serious brain damage and hasten the【B1】______of Parkinson’s disease, scienti
A single night of taking the drug Ecstasy can cause serious brain damage and hasten the【B1】______of Parkinson’s disease, scienti
admin
2018-04-27
55
问题
A single night of taking the drug Ecstasy can cause serious brain damage and hasten the【B1】______of Parkinson’s disease, scientists say. Just two to three Ecstasy tablets-a quantity that thousands of clubbers take during raves-can permanently 【B2】______ brain cells that affect movement and【B3】______, according to American research that 【B4】______ the drug to Parkinson’ s for the first time.
A study by a team at Johns Hopkins University in Baltimore, Maryland, 【B5】______ monkeys and baboons found that both species of primate【B6】______irreversible damage to key cells 【B7】______ dopamine neurons, which are lost in Parkinson’ s, after receiving three low doses of Ecstasy at three-hour【B8】______.
The study is particularly significant because baboons are one of the best animal models for the human【B9】______. George Ricaurte, who led the research, said that widespread【B10】______of the drug may already be【B11】______victims of such neurological damage. "The most troubling【B12】______is that young adults using Ecstasy may be【B13】______their risk for developing Parkinsonism as they get older."
Alan Leshner, a former director of the US National Institute on Drug Abuse, said: "This study emphasizes the multi-faceted damage that Ecstasy can do【B14】______users. We’ve long known that repeated use damages serotonin brain cells. This study shows that even very【B15】______use can have long-lasting effects【B16】______many different brain systems. It sends an important message to young people: don’t【B17】______with your own brain."
Janet Betts, the Essex mother whose daughter Leah died after a single Ecstasy tablet in 1995, said: "This comes as no【B18】______. People can’t see the effects at first, and they’re in permanent denial, saying it’s not going to happen to them. But we’ll see the【B19】______later, just as we have【B20】______smoking."
【B17】
选项
A、do
B、make
C、use
D、experiment
答案
D
解析
考查上下文文义及动词辨析。根据上下文可以判断出此处说的是不要拿大脑做实验,所以选D.experiment。
转载请注明原文地址:https://kaotiyun.com/show/As6Z777K
0
考研英语一
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