首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、It is a drug to make people sleepy. B、It lessens people’s independence. C、It weakens the effect of alcohol. D、It stimulates th
A、It is a drug to make people sleepy. B、It lessens people’s independence. C、It weakens the effect of alcohol. D、It stimulates th
admin
2016-11-26
32
问题
Many people who drink alcohol also like to smoke cigarettes. Drinking and smoking seem to be closely linked. Some people might even say they go together hand-in-hand.
But this may be more than just a mixing of two fairly common activities.
New research has looked more closely at the relationship between cigarettes and alcohol. And the relationship is one of equal dependence. Smoking and drinking seem to feed on each other.
These are the exact words of Mahesh Thakkar. He is head of research in the Department of Neurology at the University of Missouri’s School of Medicine.
Thakkar explains that when a person drinks alcohol they get sleepy. He says a drug in cigarettes fights that sleepy feeling. That drug, nicotine, can be addictive; smokers need more cigarettes because of their body’s growing dependence on the drug.
So, if a person smokes, then he or she is much more likely to drink alcohol, and vice versa. Thakkar says, "They feed off one another."
Researchers already knew that people who use alcohol often smoke. In fact, earlier research shows that more than 85 percent of alcohol-dependent American adults also depend on nicotine.
Thakkar’s earlier research showed that nicotine combined with alcohol stimulates what he calls the "reward center" of the brain. However, the new study shows a dependent relationship between the substances.
Thakkar says his team "found that nicotine weakens" the sleep-causing effects of alcohol. It does this by activating an area of the brain called the basal forebrain. According to the Psychology Definition website, that area is responsible for memory, learning and attention.
For this new experiment, Thakkar and his team used equipment that measures brain activity in rats. They injected the rats with both nicotine and alcohol, and then studied brain activity in the animals as they slept. The researchers found that nicotine goes through the basal forebrain and cancels out the sleep-causing effects of alcohol.
So, why is this new research important?
The World Health Organization says 7 million people die every year from alcohol and nicotine use.
Mahesh Thakker and his team identified why alcohol use and smoking are often linked. He says this knowledge may help people break their addictions to alcohol and nicotine.
The researchers published their findings in the Journal of Neurochemistry.
20. What is the relationship between smoking and drinking?
21. What do we know about nicotine?
22. What is the significance of the new study?
选项
A、It is a drug to make people sleepy.
B、It lessens people’s independence.
C、It weakens the effect of alcohol.
D、It stimulates the reward center.
答案
C
解析
根据录音可知,尼古丁可以减少酒精带来的困意,所以C项“它弱化酒精的作用”正确。尼古丁是香烟中的一种药物,能减轻酒精造成的困意,A项与原文相反。人们抽烟后会对尼古丁产生依赖,但并不是说尼古丁会降低人们的独立性,B项利用dependence制造干扰。尼古丁和酒精混合作用可以刺激大脑的奖赏中枢(reward center),但并未说尼古丁本身刺激奖赏中枢,D项错误。
转载请注明原文地址:https://kaotiyun.com/show/N1F7777K
0
大学英语六级
相关试题推荐
A、Herexamshavealreadybegun.B、Shehasfinishedtwopapers.C、She’stryingtocompleteherpapers.D、She’stoobusytoworko
A、Makeadecisionquickly.B、StudyItalianwithhim.C、Findoutaboutcourses.D、OffertoteachItalianatthecommunitycollege
A、Afour-yearcollegedegree.B、Lettersofreference.C、Extensivetravelexperience.D、Experienceworkingwiththepublic.D由于申请
Greece,economically,isintheblack.Withverylittletoexportotherthansuchfarmproductsastobacco,cottonandfruit,th
Itlookedlikeatypicalbusinessmeeting.Sixmen,neatlydressedinwhiteshirtsandties【C1】______intotheboardroomofasma
A、Othertypesofdiseasesarecloselylinkedtopeople’shabits.B、Healthylifestylecansurelylowertheriskofgettingcertai
A、Sellingdirecttothepublic.B、Sellingthroughtheirownchain.C、Sellingbyonlinestores.D、Sellingthroughsmallshops.C事
A、Thetwelfth.B、ThethirteenthC、Thefourteenth.D、Thefifteenth.B根据原文,最积极参与体育运动的是18至26岁的人。故答案是B。从选项可以初步猜测题目与数字范围有关。听完录音,可得知对话
A、Toachieveastateofdeeprelaxationispossiblethroughvariousmeans.B、Sittinginanarmchaircanreflectone’scharacter.
A、Talkers.B、Thespeakeasy.C、Thespacemaker.D、Texters.C推断题。文中提到两类人:speakeasy与spacemaker,并说后者在讲电话时需要有自己的空间,不让别人听到的那一类人。故C正确。
随机试题
Apgar评分判断新生儿临床恶化的顺序是
下列选项,哪项中含有保护期限不受时间限制的知识产权?()
简述深静脉置管术的适应证。
下列不符合非感染性内膜炎的描述是
生化药物的鉴别试验常以标准品或对照品作阳性对照,目的是
患者女,40岁,“宫颈糜烂”手术治疗后,为病人提供护理内容正确的是
特别适合用于与不易见面的家长联系的书面联系形式是()。
省、自治、真辖市的人发代表大会常务委员会在本级人发代表大会闭会期间,经()通过,可以、罢免本级人民代表大会选出的个别全国人民代表大会代表。
一个运动队有多个队员,一个队员仅属于一个运动队,一个队一般都有一个教练,则实体运动队和队员的联系是
Youwillnowlistentoaconversation.Youwillthenbeaskedaquestionaboutit.Afteryouhearthequestion,youwillhave20
最新回复
(
0
)