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
2017-02-17
66
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.
【C7】
选项
A、elastic
B、alert
C、awake
D、open
答案
B
解析
根据healthy的语义,可知心率变化是人脑健康的积极反应,从而让大脑进一步地调节心脏(is…able to regulate the heart.)。B项alert“警惕的,机警的”代入后,句意为“大脑警觉性高,有能力调节心脏”。
转载请注明原文地址:https://www.kaotiyun.com/show/HiEZ777K
0
考研英语一
相关试题推荐
Aspeopleinrichcountriesknowverywell,eatingtoomuchfoodandburningtoolewcaloriesiswhyasubstantialnumberofus
Afull-timejobdoesn’thavetodestroyallhopeoffamilydinnersorafternoonplaytime.Womencanincreasetheirchancesofge
关于宇宙起源的科学发现——1998年英译汉及详解Theywere,byfar,thelargestandmostdistantobjectsthatscientistshadeverdetected:astripof
技术与天才哪个对科学发展更重要——1994年英译汉及详解Accordingtothenewschoolofscientists,technologyisanoverlookedforceinexpandingthehori
如何充分利用上大学的时间——1986年英译汉及详解Itwouldbeinterestingtodiscoverhowmanyyoungpeoplegotouniversitywithoutanyclearideaof
如何充分利用上大学的时间——1986年英译汉及详解Itwouldbeinterestingtodiscoverhowmanyyoungpeoplegotouniversitywithoutanyclearideaof
人类性格与行为形成的原因及影响——1990年英译汉及详解Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsareformed.Itisnote
Scientistsaresupposedtochangetheirminds.【F1】Havingadoptedtheirviewsonscientificquestionsbasedonanobjectiveevalu
SupposeyouacceptthepersuasivedatathatinequalityhasbeenrisingintheUnitedStatesandmostadvancednationsinrecent
随机试题
钢直尺使用完毕要及时将尺面擦拭干净,以免锈蚀。()
与顺铂相比,卡铂的特点/优点是
华法林中毒宜选用以下哪一种药物解救()。
下列国际金融机构中,根据“布雷顿森林协定”建立起来的有()。
将yOz平面上的曲线z=ey(y>0)绕。轴旋转一周,所得旋转曲面方程是()。
有关唾液的性质错误的是()。
Pricesandwagesarefellow-travelers.
能够存放组合框的所有项目内容的属性是( )。
Sexprejudicesarebasedonandjustifiedbytheideologythatbiologyisdestiny.Accordingtotheideology,basicbiologicala
Inmanybusinesses,computershavelargelyreplacedpaperwork,becausetheyarefast,flexible,anddonotmakemistakes.Asone
最新回复
(
0
)