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
A candlelit dinner works wonders for romance. Now scientists say it could also be good for your heart. Breathing in candle smoke
A candlelit dinner works wonders for romance. Now scientists say it could also be good for your heart. Breathing in candle smoke
admin
2017-08-11
17
问题
A candlelit dinner works wonders for romance. Now scientists say it could also be good for your heart. Breathing in candle smoke causes beneficial【C1】______in your heart rhythm, they claim. It is thought that tiny salt particles released when the candle burns are【C2】______the effect
The researchers monitored the hearts of 13 men and women as they breathed in air【C3】______into a small chamber. In some【C4】______the air included smoke from candles in a second room. The volunteers didn’t know which type of air they were breathing, but when it included candle smoke, their heart rate variability【C5】______.
Everyone’s heart rate varies【C6】______all the time, beating a little bit faster when we breathe in than when we breathe out This is perfectly healthy and a sign that the brain is【C7】______and able to regulate the heart But this variation【C8】______as we get older and if we【C9】______heart problems. In the study, it was increased by【C10】______candle smoke.
Researcher Christina Isaxon said the concentration of smoke【C11】______during the study was similar to that created by a candlelit dinner. As the volunteers could not see the candles and weren’t told what they were breathing, the effect could not be explained【C12】______by the calming effect of candlelight.
Dr Isaxon believed that tiny particles of the candle smoke could be responsible for the beneficial effects. These particles are【C13】______regulating the heart’s rhythm and in sending messages between cells in the body. More salts are produced when a【C14】______is still. The study did not find any【C15】______health effects of the smoke—【C16】______she admitted she did not ’make a huge effort’ to find any.
Soot, black powder in the smoke, from lit candles has been【C17】______health problems in the past. The American Chemical Society has warned that common wax candles release【C18】______harmful chemicals linked to cancer and other illnessea It recommends using beeswax.
Dr Isaxon used candles made of a natural fat in her study. She recommended using candles that are as natural as possible and avoiding【C19】______and dyes as they may give off【C20】______chemicals when burned.
【C5】
选项
A、deteriorated
B、recovered
C、improved
D、injured
答案
C
解析
首段提到吸入蜡烛燃烧产生的烟雾能给心率带来有利的影响。由此可判断当志愿者呼吸的空气中含有蜡烛烟雾时,他们的心率变异性会有所改善。C项improved“改善,好转”代入后可指心率变异性增高,语义符合语篇逻辑。
转载请注明原文地址:https://jikaoti.com/ti/p0r7FFFM
0
考研英语一
相关试题推荐
Sevenyearsago,agroupoffemalescientistsattheMassachusettsInstituteofTechnologyproducedapieceofresearchwhichsh
Sevenyearsago,agroupoffemalescientistsattheMassachusettsInstituteofTechnologyproducedapieceofresearchwhichsh
Sevenyearsago,agroupoffemalescientistsattheMassachusettsInstituteofTechnologyproducedapieceofresearchwhichsh
Theproducedepartmentsofthefuturemaylooklikenothingonearth,andwithgoodreason.Chinesescientistshavebeengrowing
Sevenyearsago,agroupoffemalescientistsattheMassachusettsInstituteofTechnologyproducedapieceofresearchshowing
Inrecentdecades,scientistshavebecomeincreasinglyawareoftheparttheobserver【C1】______inthescientificprocess.Inthe
Inrecentdecades,scientistshavebecomeincreasinglyawareoftheparttheobserver【C1】______inthescientificprocess.Inthe
Inrecentdecades,scientistshavebecomeincreasinglyawareoftheparttheobserver【C1】______inthescientificprocess.Inthe
Inrecentdecades,scientistshavebecomeincreasinglyawareoftheparttheobserver【C1】______inthescientificprocess.Inthe
随机试题
美国管理学家布莱克和穆顿认为最有效的领导类型是()。
宫内节育器的避孕机制哪项正确
A.丹毒B.气性坏疽C.痈D.破伤风E.急性蜂窝织炎可以利用自动免疫预防发病的是()
下列关于直肠肛管周围脓肿的描述中,不正确的是
违反行政许可法的行政法律责任形式主要有( )。
教师提问学生,要求学生列举砖头的各种用途,学生给出的可能的答案是:建房子用的材料、打人的武器、用于垫高、用于固定某东西。这种寻求答案的思维方式是()。
下列选项中,不能在裁剪或覆盖后折成如图所示立方体的是()。
最早阐述人文主义教育思想的人文主义者是意大利的()。
WhatisDr.Francis?
Itneverrainsbutitpours.Justasbossesandboardshavefinallysortedouttheirworstaccountingandcompliancetroubles,a
最新回复
(
0
)