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
2015-04-30
37
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
此空格前为动词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://kaotiyun.com/show/r4h7777K
0
大学英语六级
相关试题推荐
Itisimportantthatwebemindfuloftheearth,theplanetoutofwhichwearebornandbywhichwearenourished,guided,heal
Itisimportantthatwebemindfuloftheearth,theplanetoutofwhichwearebornandbywhichwearenourished,guided,heal
Itisimportantthatwebemindfuloftheearth,theplanetoutofwhichwearebornandbywhichwearenourished,guided,heal
Itisimportantthatwebemindfuloftheearth,theplanetoutofwhichwearebornandbywhichwearenourished,guided,heal
Itisimportantthatwebemindfuloftheearth,theplanetoutofwhichwearebornandbywhichwearenourished,guided,heal
A、Salesmen.B、Managers.C、Customers.D、Researchers.B选项的内容表明,本题考查人物身份。由短文中提到的it’simportantforthemanagers…developeffectivema
A、Hisfather’sadvicehelpedhimtodecidewhichjobtotakeup.B、Workinginthesportsteamwashismostimportantexperience.
A、Shehaslostsomeofherimportantstuff.B、Thereissomethingwrongwithhereyes.C、Shedoesn’tknowwheretogettheinform
A、TheNetishealthierthanTV.B、TheNetisnothealthyforpeople.C、TheNetdoesnothelpwithpeople’scommunication.D、The
A、Peopleweremoremoney-conscious.B、Peopleweremorehealth-conscious.C、Thepriceoffruitdroppeddramatically.D、Peoplehad
随机试题
利率风脸
男性,28岁,半小时前被车撞伤,后被送入急诊室。查体:血压60/30mmHg,神志清楚,呼吸困难,面色苍白,四肢发凉,脉搏细速。左胸部压痛,胸壁塌陷,可闻及骨擦音及反常呼吸征,左侧呼吸音消失,右侧呼吸音降低。根据病历摘要在急诊应优先申请哪些辅助检查
维生素D缺乏性手足搐搦症发生惊厥时首选的处理方法为
肺心病、心力衰竭的治疗中最主要的是
下列哪一种情况下,善意第三人不能依据善意取得制度取得相应物权?()
内燃机和机动车制造企业应当按照国家规定的内燃机和机动车(),采用节油技术,减少石油产品消耗量。
在社会主义初级阶段,所有制形式具有多元化的特点,这是因为()。
填入下列横线处的词语,最恰当的一组是()。①你______在这里住一宿,明天再回去。②这场电影______放映了三个小时。③你比他只是______差一点,其实两人不相上下。
汉朝监察京师附近州县和百官的监察机构是()。
•Readthearticleaboutpackagingandlabeling.•ChoosethebestwordtofilleachgapfromA,B,CorDthatfollow.•Forea
最新回复
(
0
)