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
考研
It took decades to prove that cigarette smoking causes cancer, heart disease, and early death. It took【C1】______years to establi
It took decades to prove that cigarette smoking causes cancer, heart disease, and early death. It took【C1】______years to establi
admin
2017-08-11
21
问题
It took decades to prove that cigarette smoking causes cancer, heart disease, and early death. It took【C1】______years to establish that secondhand smoke also kills. Now scientists are worried about another cigarette-related phenomenon: thirdhand smoke. It’s real, and it’s found everywhere. Without knowing it, indoor smokers have left a toxic【C2】______that continues years after their last cigarette was extinguished.
Researchers now know that thirdhand smoke combines with some substances to create new compounds. Thirdhand smoke【C3】______and settles with dust,【C4】______down to carpeting and furniture【C5】______, and makes its way deep into the material in paneling and wall. It【C6】______in the hair, skin, clothing, and fingernails of smokers—【C7】______a mother who doesn’t smoke【C8】______her kids, smokes outside, then comes inside and holds the baby is exposing that child to thirdhand smoke. The new compounds are【C9】______to clean up, have a long life of their own, and many may cause cancer. And the contamination becomes more toxic【C10】______time.
No one knows, in this relatively new field of research, how long the compounds created by smoke and environmental pollutants last. "In homes where we know no smoker has lived for 20 years, we’ve still found【C11】______of these compounds in dust, in wallboard," says a scientist. But scientists do know that babies and children are most【C12】______to the toxic effects of thirdhand smoke. They【C13】______on rugs, fall asleep on carpets, and teethe on furniture, all of which could be【C14】______with thirdhand smoke.
Researchers aren’t just worried about the risk of cancer. Thirdhand smoke could be【C15】______other health problems. Those who move into houses or apartments【C16】______owned by smokers might be exposed as well. And thirdhand smoke is difficult to【C17】______. It’s virtually impossible to remove this stuff【C18】______you remove the flooring and wall.
Experts say much more work needs to be done on the【C19】______of the problem, the health risks, and effective ways to clean up the compounds. They advise parents not to expose their children to thirdhand smoke, not to【C20】______hotel rooms or cars used by smokers.
【C13】
选项
A、jump
B、walk
C、crawl
D、run
答案
C
解析
句中的主语They指代的是babies and children,而fall asleep on carpets,and teethe on furniture涉及的是婴幼儿的行为习惯。C项crawl“爬行”是婴儿活动的典型动作,且在毯子上爬行会最近距离接触三手烟遗留下来的有害物质。
转载请注明原文地址:https://kaotiyun.com/show/2oIZ777K
0
考研英语一
相关试题推荐
Apairofdice,rolledagainandagain,willeventuallyproducetwosixes.Similarly,thevirusthatcausesinfluenzaisconstan
Apairofdice,rolledagainandagain,willeventuallyproducetwosixes.Similarly,thevirusthatcausesinfluenzaisconstan
Apairofdice,rolledagainandagain,willeventuallyproducetwosixes.Similarly,thevirusthatcausesinfluenzaisconstan
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
随机试题
下列与判断病情活动性无关的指标是治疗方案中除应用NSAID对症外,选用哪种治疗方案最好
企业组织结构中的直线关系是指一种( )关系。
下列不计算建筑面积的内容是()。
甲咨询公司与客户签订一个提供咨询服务的合同,从而使企业为客户提供专业意见(专业报告),专业意见针对客户事实情况有关。如果客户终止咨询合同,假定甲咨询公司完全遵守合同义务,合同要求客户赔偿企业发生的成本,另加15%的毛利率,15%的毛利率接近企业类似合同取得
化学理论性知识包括化学基本概念和基本原理,下列对其学习策略描述不正确的是()。
“十月革命一声炮响,给中国送来了马克思列宁主义”。五四运动后,马克思列宁主义得到广泛传播。在中国颂扬俄国革命的第一人是()。
按照资本使用期限的长短,筹资类型划分为()。
面子工程
关于毛泽东思想,下列说法中正确的有()
Chemistrydidnotemergeasascienceuntilafterthescientificrevolutionintheseventeenthcenturyandthenonlyratherslow
最新回复
(
0
)