首页
登录
职称英语
Schools looking to ban cell phones may have a new excuse: a growing number o
Schools looking to ban cell phones may have a new excuse: a growing number o
游客
2023-07-20
11
管理
问题
Schools looking to ban cell phones may have a new excuse: a growing number of people are developing an allergy to metal in the devices. We all know that food; allergies are on the rise—a study last year showed the rate at 1 per 70 children, compared with 1 in 250 in the 1970s. But at last month’s meeting of the American College of Allergy, Asthma & Immunology, allergists reported that many substances that once seemed innocuous (无害的) are now leading to allergic reactions, too.
Allergies can develop when young bodies come into contact with a new substance, and an increasing number of kids have early exposure to tech tools and "adult" products that can lead to a lifetime of reactions. For instance, the nickel hardware often used on phone trim and faceplates can lead to red, itchy skin where the phone is pressed against the face of someone who developed a nickel allergy at a young age. It’s especially problematic for women, says Luz Fonacier, an allergist who attended the conference. Young girls are often first exposed to nickel when they get their ears pierced, and therefore are more likely to develop sensitivity to the metal that can cause allergic reactions later on.
Temporary tattoos could be another allergy trigger. They share a pigment (色素) used in hair dyes, which can lead to problems down the line. "You might have kids developing the sensitivity now, and then finding out only when they’re much older and decide to dye their hair, then have an attack," says Fonacier.
Foods that were once considered low risk, like pumpkin, are now causing some allergic reactions, too.
So what’s behind all these newfangled allergens (过敏原)? Some researchers believe that as humans live in cleaner, safer and more disease-free environments, the immune system—given less to do thanks to antibiotics and Clorox (次氯酸钠)—turns on substances once considered safe. Others note that children are being exposed to more and more new foods and foreign substances at earlier ages, which could up the chances of developing sensitivity. To be safe, Fonacier recommends that children avoid piercing until after age 10. And it’s all just another reason to keep those cell phones and temporary tattoos away from young hands. [br] It is believed that in cleaner and safer environments the immune system will______.
选项
A、not work because of the disease factors
B、rely on antibiotics and Clorox
C、have very weak response to some substances
D、function more efficiently than in the ordinary environments
答案
C
解析
细节推断题。由定位句可知,“当人类生活在更干净、更安全、更不受疾病侵扰的环境中时,免疫系统 由于抗生素和次氯酸钠的缘故,免疫系统很少起作用一会对一些曾经认为是安全的物质不设防”,因此由于环境太好使人类免疫系统不能发挥应有的作用,故C)“对一物质有非常微弱的反应”与文意相符,为正确答案。
转载请注明原文地址:https://www.tihaiku.com/zcyy/2852234.html
相关试题推荐
Womenareonthevergeofoutnumberingmenintheworkforceforthefirstti
Womenareonthevergeofoutnumberingmenintheworkforceforthefirstti
Womenareonthevergeofoutnumberingmenintheworkforceforthefirstti
Womenareonthevergeofoutnumberingmenintheworkforceforthefirstti
Averyimportantworldproblemistheincreasingnumberofpeoplewhoactual
Averyimportantworldproblemistheincreasingnumberofpeoplewhoactual
Averyimportantworldproblemistheincreasingnumberofpeoplewhoactual
Includedinthe______ofthepublicschoolsintheUnitedStatesisthesocializ
Ourlibraryhasboughtanumberofnew______booksonEnglishlanguageteaching
ATheSpanishGovernmentissoworriedaboutthenumberofyoungadultsstil
随机试题
[originaltext]W:Oh,Jack.I’mgladIcaughtyou.IwanttotellyouIhaveto
HowtoBeEffectiveReaders?I.Introductionofreadingand
下列函数中,在(0,+∞)为增函数的是A.y=x2+x B. C. D
2021年4月30日,中共中央政治局就新形势下加强我国生态文明建设进行第二十九次
A.寒积便秘 B.热积便秘 C.阳虚便秘 D.肠燥便秘 E.虫积便秘郁李
方中均含有麻黄与桂枝的是A.小青龙汤和大青龙汤 B.地黄饮子和桑螵蛸散
对肝功能有损害的抗结核药物是( )。A.利福平 B.异烟肼 C.吡嗪酰胺
女性患者拔牙4天后出现剧烈疼痛,最可能的原因是A.牙髓炎 B.牙周病
隧道施工中,新奥法施工变形观测现场一般采用()观测。A.经纬仪 B.全站仪
某施工单位在参加投标中有违法行为,建设行政主管部门的处罚决定于5月20日作出,施
最新回复
(
0
)