Ifyoucan’tmanagetoquitsmokingtoimproveyourownhealth,doi...
问题详情:
If you can’t manage to quit smoking to improve your own health, do it for your kids’ hearing. Teenagers who have been exposed to secondhand smoke have about double the risk of hearing loss of those who had little or no exposure, say researchers from the New York University School of Medicine.
They tested more than 1,500 adolescents (青少年) aged 12 to 19 for blood levels of cotinine, a byproduct of nicotine that forms when people are exposed to cigarette smoke, and then tested their ability to hear high- , medium-, and low-frequency sounds.
The more smoke the teens had been exposed to, the greater their risk of hearing loss. Those with the highest levels of exposure had nearly three times the risk of hearing loss.
Hearing loss was especially marked in the mid- to high-frequency range, which means the adolescents may have difficulty understanding human speech. That could cause problems in school, where kids may be labeled trouble makers.
Surprisingly, some 80 percent of these kids had no idea that they had hearing loss.
More than half of American children and teenagers are exposed to secondhand smoke in their homes. This exposure increases children’s risk of lung cancer, learning disabilities, heart disease, and other diseases.
Scientists suggest that parents minimize their children’s exposure to tobacco smoke and that all children and teenagers exposed to secondhand smoke should be regularly tested for hearing loss, in case hearing aids are needed.
28. According to the passage, teenagers exposed to secondhand smoke may .
A. lose weight B. become short-sighted
C. lose heart D. not hear people well
purpose of this article is to .
A. warn parents against smoking in the face of their children.
B. discourage teenagers from smoking.
C. persuade teenagers to stay away from smokers.
D. encourage teenagers to have regular medical examinations.
’s a surprising fact that .
A. teenagers exposed to secondhand smoke have trouble at school.
B. the majority of the teenagers who suffer from hearing loss are not aware of the problem
C. more than half of American are exposed to secondhand smoke at homes
D. exposure to secondhand smoke can cause a number of problems except hearing loss.
h of the following two things are suggested by scientists according to the passage?
a. Parents should try to smoke as little as possible.
b. Children should take medicine regularly to prevent hearing loss.
c. Children and teenagers exposed to secondhand smoking should be checked regularly.
d. Parents should talk with the teachers about their children’s performance at school.
A. a and b B. a and c C. b and d D. c and d
【回答】
DABB
知识点:健康保健类阅读
题型:阅读理解
-
有关叙述:能说明M比N的非金属*强的叙述是 ①非金属单质...
问题详情:有关叙述:能说明M比N的非金属*强的叙述是 ①非金属单质M能从N的化合物中置换出非金属单质N。 ②M原子比N原子容易得到电子。③单质M跟H2反应比N跟H2反应容易得多。 ④气态*化物水溶液的**H...
-
对于一定量的理想气体,下列说法正确的是______。(选对一个给3分,选对两个给4分,选对3个给6分。每选错一...
问题详情:对于一定量的理想气体,下列说法正确的是______。(选对一个给3分,选对两个给4分,选对3个给6分。每选错一个扣3分,最低得分为0分) A.若气体的压强和体积都不变,其内能也一定不变 B.若气体的内能不变,其状态也一定不变 C.若气体的...
-
下列化学用语表达正确的是( )A.羟基的电子式 B.乙烯的结构简式是CH2CH2C.醛基的结...
问题详情:下列化学用语表达正确的是()A.羟基的电子式 B.乙烯的结构简式是CH2CH2C.醛基的结构简式是—COH D.淀粉的分子式是(C6H10O5)n【回答】D知识点:糖类油脂蛋白质单元测试题型:选择题...
-
目前,制造*自己航母的呼声越来越高,如图所示是某位网友提供的*航母的设想图.一艘航母的舰载机飞离航母后,则...
问题详情:目前,制造*自己航母的呼声越来越高,如图所示是某位网友提供的*航母的设想图.一艘航母的舰载机飞离航母后,则有()A.航母将上浮,所受浮力减小B.航母将下沉,所受浮力增大C.航母将下沉,所受浮力减小D.航母始终漂浮,所受浮力不变【回答】考点:物体的浮沉条件及其应用.347398...
相关文章
- —Mum,canIgoouttoplaywithmyfriendstonight?—OK,butyou
- YourNewYear’splantomovemoreisoneofthetoughesttostickto,...
- 仿照例子把两句合成一句Model:a.Youthinkyou’regoingtovisitNewYorkCit...
- –Youdon’tgotothatsupermarketquiteoften,doyou? --No,Ionl...
- Ifyou’vealwayshopedtogiveupyour9-to-5jobtomovetoMaineto...
- 阅读理解I’mtakingmyfamilytoothercountriestohaveatrip.Mywife...
- Ifyouwanttowriteamoviescript(脚本)yourselfbutdon’tknowhow...
- Inmylife,I'vebeentoldthatteamworkisgolden.Thereisno"i"i...
- —We’redoingalottoprotectourenvironment(环境),butitisnotgo...
- TheInternetisbecomingimportantinourlife.Howmuchdoyoukno...