首页
登录
职称英语
The reason fruits and vegetables are so important to your overall health is
The reason fruits and vegetables are so important to your overall health is
游客
2023-08-22
14
管理
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 [br] 【C2】
选项
答案
C
解析
该空格前为名词body’s cells,空格后为并列短语food and oxygen,因此填入该空格的词应为动词。根据句意及上下文语义关系可知,此处所选单词应表示“转换”之意,选项中A、C两项都有转变的意思,二者的区别在于change通常指形式、形态上的变化,而convert一词则指事物本质上的改变,此处“把食物和氧气转化为能量”是本质上的改变,所以C是最佳答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2948638.html
相关试题推荐
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
[originaltext]VitaminDhelpsbonesandmusclesgrowstrongandhealthy.
[originaltext]VitaminDhelpsbonesandmusclesgrowstrongandhealthy.
[originaltext]W:I’vebeenreadingaboutanewhealthysnackfood.It’smadefr
Theproblemofhowhealth-careresourcesshouldbeallocatedorapportioned,
Theproblemofhowhealth-careresourcesshouldbeallocatedorapportioned,
Here’sawarningfromhealthexperts:Sittingisdeadly.Scientistsareinc
随机试题
OregonMomForcedtoTreatBabyforHIVKathleenTysonwantsdesperatelyto
Almostallhumanbeingsaremuchmore(intelligence)______thananimals.intelligen
SocialmediapresentschallengetouniversitiesUniversitieshav
太学是中国历史上有文献记载的正式设立大学的开端,是中国高等教育由萌芽走向雏形的表
下列不属于自带电源非集中控制型系统主要组成的是()。A.应急照明配电箱 B.
电容的单位是()。A.欧姆 B.法拉 C.焦耳 D.安培
牙周膜中的纤维有A.牙槽嵴组 B.根尖组 C.水平组 D.斜行组 E.以
《中国银行业自律公约实施细则》适用于中国银行业协会全体会员单位。
共用题干 第二篇TheIcemanOnaSeptemberdayin
患者,男性,喝醉酒后,撞在护栏杆上,伤及左腰部,由朋友陪同前来就诊。除全面查体之
最新回复
(
0
)