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
外语
The reason fruits and vegetables are so important to your overall health is that they are major purveyors of antioxidants. A
The reason fruits and vegetables are so important to your overall health is that they are major purveyors of antioxidants. A
admin
2015-02-12
72
问题
The reason fruits and vegetables are so important to your overall health is that they are major purveyors of antioxidants.
Antioxidant molecules are like the missile【C1】______system of your body, preventing damage from molecular bombs called free radicals. It works like this: in order to breathe, move, or eat, your body’s cells【C2】______food and oxygen into energy. This chemical reaction releases【C3】______byproducts, the free radicals we mentioned. Basically, they’re highly reactive【C4】______of oxygen that are missing an electron.
【C5】______for that missing electron, they steal them from normal cells, damaging the healthy cell and its
DNA in the【C6】______. This damage eventually【C7】______to any number of major health problems, including heart disease, memory loss, and cancer.
Antioxidants, however,【C8】______with this process by giving free radicals one of their own electrons to stabilize them. Or they combine with free radicals to form different, more【C9】______compounds. There are also antioxidant enzymes that help free radicals react with other chemicals to produce safe, instead of toxic, substances. Antioxidants, for instance, help prevent "bad" LDL cholesterol from becoming【C10】______and forming plaque(斑). This is the reason the health establishment is so insistent on people eating more fresh produce: It provides around-the-clock defenses against free-radical damage to your arteries.
A)change B)contributes C)convert D)defense E)Desirous
F)Desperate G)forms H)harmful I)interfere J)offense
K)participates L)process M)stable N)stickier O)thinner
【C3】
选项
答案
H
解析
给空格前为动词release,空格后为名词byproducts,因此填入该空格的词应为形容词。原句意为“这一化学反应释放——副产品,即上面提到的自由基”,自由基是有害物质,因此所选单词应表示“有害的”,选项中只有H符合句意,harmful意为“有害的”。
转载请注明原文地址:https://www.kaotiyun.com/show/iVh7777K
0
大学英语六级
相关试题推荐
A、Toplantmorefastgrowingtrees.B、Tofindnewmaterialsformakingpaper.C、Todevelopnewprintersusingrecycledpaper.D、
Fortyyearsagonoonewasconcernedaboutthehealthoftheocean,inspiteofthefactthatmanyfisheries(渔业)werebeingoverh
Languageis,andshouldbe,alivingthing,constantlyenrichedwithnewwordsandformsofexpression.Butthereisavitaldis
Manyyoungpeoplebelievegoodgradesandexcellentinternshipswilllandthemtheiridealjob.However,contrarytowhattheyt
Manyyoungpeoplebelievegoodgradesandexcellentinternshipswilllandthemtheiridealjob.However,contrarytowhattheyt
Well-to-doparentsareincreasinglyoptingtosendtheirchildrentosingle-sexprepschools,reversingthetrendofrecentyear
Inthemarket’seyes,thelatestroundofconsumer-spendingnewswasgood.Itwassogoodthatthestockshadanotherbubblingd
A、Therewereonlygrandparentsandchildren.B、Therewasonefather,onemother,andtheirchildren.C、Thereweremanyrelatives
A、Themanshouldgofortheexchangeprogramme.B、Themaniskiddingherbytheexchangeprogramme.C、Sheisconsideringnotgoi
ZandraJohnsonisalivingproofthatitisnevertoolatetostartyourownbusiness.Afternearly40yearsofbeingahousewif
随机试题
党的十六大提出了()
下述肺炎克雷白杆菌肺炎的临床表现中,哪一项诊断价值最大
11个月患儿,因腹泻、呕吐入院,诊断为重型婴儿腹泻,经输液6h后排尿,但出现精神萎靡,心音低钝,四肢无力,腹胀,肠鸣音减弱,应考虑为( )。
防雷接地的引下线明装为__________,暗装为__________。
港口与航道工程中,影响挖泥船时间利用率因素的说法,错误的是()。
托收属于银行信用,托收银行与代收银行对托收的款项能否收到负有责任。()
债务人或者第三人将其动产或权利移交债权人占有,用以担保债权的履行,这种担保方式称为()。
出征:击鼓:士气
从1927年7月大革命失败到1935年1月遵义会议召开之前,“左”倾机会主义的错误先后三次在党中央的领导机关取得了统治地位,即
WhatwasthecauseofthestampedeataHindufestival?
最新回复
(
0
)