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 immediately by killing masses of cells in vital organs. But even the lowest levels can do serious damage. There is no levels of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and if they are killed immediately. 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 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(輻射)and feel fine, then die for cancer five, ten, or twenty years later as a result. Or a child can be born weak as a result of radiation absorbed by its grandparents.
Radiation can hurt us. We must know the truth.
【小題1】Which of the following statements is true?

A．Nuclear radiation is just like common radio waves.
B．Nuclear radiation can cause cancer to human beings.
C．Nuclear radiation can be detected by human senses.
D．Nuclear radiation can be safe to human beings if its level is low.
【小題2】How can nuclear radiation kill an animal?
A．By damaging its heart.
B．By killing a few cells.
C．By hitting any place in its body.
D．By killing many cells in important organs.
【小題3】If a human being is hit by nuclear radiation, he may __________.
A．die of cancer after many years
B．die immediately
C．have a child who may be born weak
D．a(chǎn)ll of the above


【小題1】B
【小題2】D
【小題3】D

解析文章大意：本文向我們介紹了核能對我們健康的危害。核能對人類的健康、安全乃至生命所造成的危害可用一個單詞加以概括：輻射。
【小題1】B　細(xì)節(jié)理解題。由第二段第一句話可知，C項(xiàng)錯誤；由第二段最后一句話“But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things. ”可知，核輻射對人類健康有害，它和一般的微波不一樣，所以A、D項(xiàng)錯誤；由第三段倒數(shù)第二句話可知，B項(xiàng)正確。
【小題2】D　推理判斷題。由第三段第一句話“At very high levels, radiation can kill an animal or human being immediately by killing masses of cells in vital organs.”可知，D項(xiàng)正確。
【小題3】D　細(xì)節(jié)理解題。由第四段倒數(shù)后兩句話可知，A、C項(xiàng)正確；由第三段第一句話可知，A項(xiàng)正確。所以選D項(xiàng)。

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D．Thin people may be fat inside.
【小題2】Doctors have found ________.
A．being slim doesn't mean you are not fat inside
B．internal fat is the cause of heart disease and diabetes
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D．the exact dangers of internal fat
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A．People with heart disease all have internal fat.
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When another old cave is discovered in the south of France，it is not usual news．Rather，it is art ordinary event．Such discoveries are so frequent these days that hardly anybody pays heed to them．However，when the Lascaux cave complex was discovered in 1940，the world was amazed．Painted directly on its walls were hundreds of scenes showing how people lived thousands of years ago．The scenes show people hunting animals，such as bison or wild cats．Other images show birds and，most noticeably，horses，which appear in more than 300 wall images，by far outnumbering all other animals．

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Unfortunately，the paintings have been exposed to the destructive action of water and temperature changes，which easily wear the images away．Because the Lascaux caves have many entrances，air movement has also damaged the images inside．
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科目：高中英語 來源： 題型：閱讀理解

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The area where a pride lives is big! We roar (咆哮) to tell each other where we are and to warn strangers to stay away.
Come to meet my new baby brother. His name is Leon. See the spots on his fur? We lions are born spotted or striped (有條紋的). As we grow older, the spots gradually disappear.
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Since we are full, it’s time to go to find a nice place for a sleep. Bye!
【小題1】From the text, we can learn that Lisa comes from______.

A．Asia B．Africa C．Europe D．America
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B．the animal that is dangerous
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C．Lions usually hunt for food in the evening.
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A．doctors B．political leaders C．children D．hunters
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A．hunts more often than his sisters
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