首页
登录
从业资格
根据以下材料,回答 It′s one of our common belief
根据以下材料,回答 It′s one of our common belief
资格题库
2022-08-02
88
问题
根据以下材料,回答It′s one of our common beliefs that miceare afraid of cats. Scientists have long known that even if a mouse has neverseen a cat before, it is still able to detect chemical signals released from itand run away in fear. This has always been thought to be something that is hard-wiredinto a mouse′ s brain.But now Wendy Ingram, a graduate student atthe University of California, Berkeley, has challenged this common sense. Shehas found a way to "cure" mice of their inborn fear of cats by infectingthem with a parasite, reported the science journal Nature.The parasite, called Toxoplasma gondii,might sound unfamiliar to you, but the shocking fact is that up to one-third ofpeople around the world are infected by it. This parasite can cause different diseasesamong humans, especially pregnant women--it is linked to blindness and thedeath of unborn babies.However, the parasite′s effects on mice areunique, Ingram and her team measured how mice reacted to a cat′ s urine (尿) before and after it was infected by the parasite. They noted thatnormal mice stayed far away from the urine while mice that were infected withthe parasite walked freely around the test area.But that′s not all. The parasite was foundto be more powerful than originally thought--even after researchers cured themice of the infection. They no longer reacted with fear to a cat′s smell, whichcould indicate that the infection has caused a permanent change in mice′ sbrains.Why does a parasite change a mouse′s braininstead of making it sick like it does to humans? The answer lies in evolution."It′s exciting scary to know how aparasite can manipulate a mouse′s brain this way," Ingram said. But shealso finds it inspiring. "Typically if you have a bacterial infection, you go to a doctor andtake antibiotics and the infection is cleared and you expect all the symptomsto also go away." She said, but this study has proven that wrong. "This may have huge implicationsfor infectious disease medicine."Which of the following statements istrue according to the passage?A.Toxoplasma gondii causes people strangeand deadly diseases.B.With certain infection the infectiousdisease cannot be cured completely.C.Human beings infected by toxoplasmagondii will have permanent brain damage.D.Toxoplasma gondii is harmful to humanbeings, but it does no harm to mice.
选项
A.Toxoplasma gondii causes people strangeand deadly diseases.
B.With certain infection the infectiousdisease cannot be cured completely.
C.Human beings infected by toxoplasmagondii will have permanent brain damage.
D.Toxoplasma gondii is harmful to humanbeings, but it does no harm to mice.
答案
B
解析
细节题。寄生虫会对未出生的小孩造成致命性的伤害,故A排除;文章只表明这种感染对老鼠的大脑有永久性的改变,并没有提及人类,故C排除;寄生虫对人类有危害,但是并不能说明对老鼠没有危害,故D排除。文章最后一段指出,人们一旦受到细菌感染就希望吃抗生素来清除所有的感染并希望所有的症状都能消失,但是这种想法是错误的,故可以推断出B与原文相符。
转载请注明原文地址:http://tihaiku.com/congyezige/1924829.html
本试题收录于:
教师招聘 中学题库教师招聘分类
教师招聘 中学
教师招聘
相关试题推荐
医疗事故处置中患者有权复印或复制的材料是A、手术同意书 B、疑难病例讨论记录
下列各项中,属于发生医疗事故争议时,应在医患双方在场的情况下封存和启封的材料是A
消费者可根据自行判断并进行购买和使用的药品是A.麻醉药 B.进口药 C.处方
感染根据病原体感染的次数、时间先后和种数,其分类不包括的是A、原发感染 B、继
抗恶性肿瘤药物根据作用机制分类不包括的是A、细胞周期非特异性药物 B、破坏CN
小儿肺炎抗生素使用原则错误的是A、早期治疗 B、足量、足疗程 C、根据病原菌
选择抗癫痫药物是根据A、发作的诱因 B、发作的病因 C、发作的类型 D、发
根据成就动机理论,力求成功者最可能选择的任务的成功概率为()。A.25%
《中华人民共和国义务教育法》是根据_____和_____确定的。
根据《中华人民共和国教育法》的规定,中小学实行_____负责制。
随机试题
Americancitiesare【C1】______otherdriesaroundtheworld.Ineverycount
[originaltext]Homesecurity,ofcourse,referstomakingsurethatnoonec
[A]try[B]earlier[C]published[D]scientific[E]life[F]weight[G]classified[
科学家们很早就发现,地球绕着太阳转。Scientistshavelongdiscoveredthattheearthmovesaroundth
原发性甲状旁腺功能减退的实验室检查常表现为A.血清碱性磷酸酶(ALP)正常 B
Alltheflights______becauseofthesn
根据材料,如果2010年该企业税负增长率维持在2009年的水平上,2010年的税
厌恶疗法常用的厌恶刺激包括()。 (A)电刺激(B)药物刺激 (C)想象
根据规定,以银行为付款人的,应自收到委托收款及债务证明的次日起一定期限内出具拒绝
(2020年真题)某按单价合同进行计价的招标工程,在评标过程中发现某投标人的总价
最新回复
(
0
)