题目
Nuclear power's(核能的) danger to health, safety, and even life itself can be described in one word: radiation(辐射). Nuclear radiation has a certain mystery about it, partly because it cannot be detected (探测) 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 (细胞) in important organs (器官). But even the lowest levels 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 an unusual 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 knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents. Radiation can hurt us. We must know the truth. 【小题1】According to the passage, the danger of nuclear power lies in ________. A．nuclear mystery B．radiation detection C．radiation level D．nuclear radiation 【小题2】Radiation can lead to serious results even at the lowest level ________. A．when it kills few cells B．if it damages few cells C．though the damaged cells can repair themselves D．unless the damaged cells can reproduce themselves 【小题3】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 younger generation D．lead to all of the above results 【小题4】Which of the following can be best inferred from the passage? A．The importance of protection from radiation cannot be overemphasized (过分强调). B．The mystery about radiation remains unsolved. C．Cancer is mainly caused by radiation. D．Radiation can hurt those who do not know about its danger.
Nuclear power's(核能的) danger to health, safety, and even life itself can be described in one word: radiation(辐射).
Nuclear radiation has a certain mystery about it, partly because it cannot be detected (探测) 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 (细胞) in important organs (器官). But even the lowest levels 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 an unusual 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 knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.
Radiation can hurt us. We must know the truth.
【小题1】According to the passage, the danger of nuclear power lies in ________.
【小题2】Radiation can lead to serious results even at the lowest level ________.
【小题3】Radiation can hurt us in the way that it can ________.
【小题4】Which of the following can be best inferred from the passage?
Nuclear radiation has a certain mystery about it, partly because it cannot be detected (探测) 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 (细胞) in important organs (器官). But even the lowest levels 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 an unusual 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 knowledge of the person at the time that damage has occurred. A person can be irradiated(放射治疗) and feel fine, then die of cancer five, ten, or twenty years later as a result. Or a child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.
Radiation can hurt us. We must know the truth.
【小题1】According to the passage, the danger of nuclear power lies in ________.
| A．nuclear mystery | B．radiation detection |
| C．radiation level | D．nuclear radiation |
| A．when it kills few cells |
| B．if it damages few cells |
| C．though the damaged cells can repair themselves |
| D．unless the damaged cells can reproduce themselves |
| 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 younger generation |
| D．lead to all of the above results |
| A．The importance of protection from radiation cannot be overemphasized (过分强调). |
| B．The mystery about radiation remains unsolved. |
| C．Cancer is mainly caused by radiation. |
| D．Radiation can hurt those who do not know about its danger. |
题目解答
答案
【答案】
【小题1】D
【小题2】B
【小题3】D
【小题4】A
【小题1】D
【小题2】B
【小题3】D
【小题4】A
解析
步骤 1：理解问题
问题要求我们根据文章内容回答关于核辐射的几个问题。文章主要讨论了核辐射的危险性，包括其对健康、安全和生命的威胁，以及其不可见性和长期影响。
步骤 2：分析问题
【小题1】文章中提到核能的危险性可以用一个词来描述，即辐射。因此，核能的危险性在于核辐射。
【小题2】文章提到，即使在最低水平，辐射也能造成严重的损害。如果辐射只损伤了少量细胞，这些细胞可能会以异常的方式繁殖，导致癌症。因此，即使在最低水平，辐射也能导致严重的后果。
【小题3】文章提到，辐射可以通过杀死重要器官中的大量细胞导致立即死亡，也可以通过损伤细胞导致癌症，还可以影响后代的健康。因此，辐射可以通过以上所有方式伤害我们。
【小题4】文章提到，辐射的危险性在于其不可见性和长期影响，因此，保护自己免受辐射的伤害是非常重要的。因此，从文章中可以推断出，保护自己免受辐射的伤害是非常重要的。
问题要求我们根据文章内容回答关于核辐射的几个问题。文章主要讨论了核辐射的危险性，包括其对健康、安全和生命的威胁，以及其不可见性和长期影响。
步骤 2：分析问题
【小题1】文章中提到核能的危险性可以用一个词来描述，即辐射。因此，核能的危险性在于核辐射。
【小题2】文章提到，即使在最低水平，辐射也能造成严重的损害。如果辐射只损伤了少量细胞，这些细胞可能会以异常的方式繁殖，导致癌症。因此，即使在最低水平，辐射也能导致严重的后果。
【小题3】文章提到，辐射可以通过杀死重要器官中的大量细胞导致立即死亡，也可以通过损伤细胞导致癌症，还可以影响后代的健康。因此，辐射可以通过以上所有方式伤害我们。
【小题4】文章提到，辐射的危险性在于其不可见性和长期影响，因此，保护自己免受辐射的伤害是非常重要的。因此，从文章中可以推断出，保护自己免受辐射的伤害是非常重要的。