首页
登录
职称英语
共用题干 第一篇Nuclear Power and Its DangerNuc
共用题干 第一篇Nuclear Power and Its DangerNuc
考试题库
2022-08-02
6
问题
共用题干第一篇
Nuclear Power and Its Danger
Nuclear power's danger to health,safety,and even life itself can be summed up in one word:radiation.
Nuclear radiation has a certain mystery about it,partly because it cannot be detected by human senses.It can't be seen or heard,or touched or tasted,even though it may be all around us.There are other things like that. For example,radio waves are all around us but we can't detect them,sense them,without a radio receiver. Similarly,we can't sense radioactivity without a radiation detector. But unlike common radio waves,nuclear radiation is not harmless to human beings and other living things.
At very high levels,radiation can kill an animal or human being outright by killing masses of cells in vital organs.But even the lowest level of radiation can do serious damage.There is no level of radiation that is completely safe.If the radiation does not hit anything important,the damage may not be significant. This is the case when only a few cells are hit,and if they are killed outright,your body will replace the dead cells with healthy ones.But if the few cells are only damaged,and if they reproduce themselves,you may be in trouble.They reproduce themselves in a deformed way.They can grow into cancer. Sometimes this does not show up for many years.
This is another reason for some of the mystery about nuclear radiation.Serious damage can be done without the victim being aware at the time that damage has occurred.A person can be irradiated and feel fine,then die of cancer five,ten,or twenty years later as a result.Or a child can be born weak or liable to serious illness as result of radiation absorbed by its grandparents.
Radiation can hurt us.We must know the truth.Radiation can hurt us in the way that it can________.A:kill large numbers of cells in main organs so as to cause death immediatelyB:damage cells which may grow into cancer years laterC:affect the healthy growth of our offspringD:all of the above
选项
Radiation can hurt us in the way that it can________.
A:kill large numbers of cells in main organs so as to cause death immediately
B:damage cells which may grow into cancer years later
C:affect the healthy growth of our offspring
D:all of the above
答案
D
解析
第一段就明确指出核能的危险在于核辐射。
第三段提到,即使很微量的辐射也会带来严重的后果,主要因为受损伤的细胞会以崎形的方式自我复制,进而转变为癌症。
not be significant指不太要紧的、不致命的,所以选A。
核辐射会给我们选项A、B和C几个方面的损害,只有D概括较全面,所以D正确。
文章第二段和第四段分别提到了不同的“reasons for some of the mystery tbout nuclear radiation",由此可以推断,核辐射仍然是一个未解之谜。
转载请注明原文地址:https://tihaiku.com/zcyy/1500860.html
本试题收录于:
综合A题库综合类分类
综合A
综合类
相关试题推荐
共用题干 廖某委托甲房地产经纪机构(以下称甲机构)寻找房源,并签订了房地产经纪
共用题干 张某委托甲房地产经纪机构(以下称甲机构)为其寻找一套房子。经过反复比
共用题干 张某委托甲房地产经纪机构(以下称甲机构)为其寻找一套房子。经过反复比
共用题干 甲房地产经纪机构(以下称甲机构)是个人独资的房地产经纪机构。张某和王
共用题干 甲房地产经纪机构(以下称甲机构)是个人独资的房地产经纪机构。张某和王
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
随机试题
[originaltext]W:Whendidyoubecomeinterestedincollectingstamps?M:Oh,wh
U.S.ratesofdiseaseandsomecancers,【B1】______ofthebreast,areamongth
[originaltext]TheOrfordnessLighthouse,inSuffolk,is10metersfromthe
某厂所用的燃料油收到基的低位发热量Q(ar,net)=45000kj/kg,则其
按照《证券交易委托代理协议指引》的规定,以下属于客户可以委托证券公司代理的事项有
治疗急性泄泻的主穴是()A.神阙、天枢、足三里、公孙 B.中脘、内关、足
从幼儿在园一日活动的主要类型来分,幼儿园环境可分为游戏活动环境、学习活动环境和(
下述何项是导致麻木的因素A.肝风内动 B.痰浊阻络 C.气血亏虚 D.瘀血
中药养护中吸湿防潮法可采用的干燥剂是A.干冰 B.生石灰块 C.熟石灰块
在施工现场安装、拆卸施工起重机械和整体提升脚手架、模板等自升式架设设备,必须由(
最新回复
(
0
)