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.
1.According to the passage, the danger of nuclear power lies in ________.
A. nuclear mysteryB. radiation detection
C. radiation levelD. nuclear radiation
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
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
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.
活力课时同步练习册系列答案科目：高中英语 来源：2016-2017学年河南郸城县一中高二上开学考试英语卷（解析版） 题型：阅读理解
A few years ago, a company called Space Marketing came up with a plan to send a mile–long advertisement into space. To advertising agencies (机构), it would have been “a dream come true”. However, advertising standards agencies finally decided not to allow Space Marketing to go ahead with their plans and they were forced to give them up.
Space may indeed be the final place for advertisers, because on Earth we are already surrounded by advertising wherever we are and whatever we are doing. Apart from the obvious adverts that we see every day on TV, and in newspapers and magazines, there is a whole ‘other world’ of advertising messages for our attention. There are ads that we see on the side of the bus we catch to work, for example. And what about the logos (商标) we see on the clothing of the people we walk past in the streets?
Most of the time, we are probably not even aware of (意识到的) these less obvious advertising methods, but that doesn’t mean that they don’t work. Take ‘product placement’, for example. You are in a cinema, watching the latest Hollywood movie. Look carefully at the make of car your favorite actor is driving. And what about his watch? Can you see what brand it is? Chances are, you can, and the company that owns the brand is likely to have paid thousands for it to appear in the film.
So, whether Space Marketing finally succeeds in sending ads into space or not is perhaps less important than it might seem. This would not change a thing. Our everyday lives are already strongly influenced by advertising whether we realize it or not.
1.What happened to the plan of sending an ad into space?
A. It came to nothing.
B. It was a dream come true.
C. It had to wait a few years before it was carried out.
D. It was supported by the advertising standards agencies.
2.How does the author explain the “other world” of advertising messages?
A. By showing research findings.
B. By explaining research findings.
C. By giving instructions.
D. By using examples.
3.As a form of advertising, product placement ________.
A. costs a little
B. doesn’t work
C. is less obvious than TV ads
D. mainly appears in Hollywood movies
4.What does the author suggest at the end of the text？
A. We live in a world of advertising.
B. We’ve changed a lot because of advertising.
C. Space Marketing leads in the advertising industry.
D. Space ads will mark the beginning of a new world.
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科目：高中英语 来源：2017届内蒙古高三上期第一次月考英语卷（解析版） 题型：完形填空
阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A Slice of Generosity
It was Saturday and we decided to take our kids for ________ out. We chose a branch of Pizza Express at the Surbiton Street. We entered the restaurant and sat down ________ an empty table. There was an elderly lady dining alone at the next table. It was clear that the lady had ________ needs. After some time, she finished her eating, sat up and went to the ________ to pay the bill. The waitress tried her bank card several times but couldn’t make it.
Then the waitress turned to her and ________ told the lady that there was something wrong with her bank card and it couldn’t be used at that moment. The lady looked ________ and confused, not knowing what to do. The kind and patient waitress told her not to be nervous and that she could call her ________ for help. Hearing that word, Jeremy, my husband, ________ sat up and told the waiting staff that we would pay for the lady's meal. The waitress smiled to us approvingly and said OK. My husband went to her and handed her our bank card. However, just at that moment, the manager arrived. He learned about the matter and turned to the lady, saying that ________ she couldn’t use her bank card to pay, there was no need to worry because Pizza Express had allowed the restaurant to give away two ________ meals every month and on this occasion, they would like to ________ her with a free meal.
She was extremely ________ and apologetic that she had been unable to pay. We were ________ that the lady had been ________ in such a respectful way and that she was not placed in a difficult and embarrassing position. Then, the manager turned and headed to us. He said that, as we had shown such ________ and helpfulness, he would like to ________ the second free meal that the restaurant was able to offer to us! We were extremely surprised! I have never heard of any chain restaurant behaving in such a ________ way. We were quite impressed with gratitude, expressing our ________ to the manager on behalf of both the lady and us. I made sure that the lady was able to get home OK then we thanked the staff and manager again and left the restaurant.
I think Pizza Express, and in particular the manager of the Surbiton branch, ________ our praise and respect. I told the manager that my younger son also had special needs and that I really ________ the way the restaurant had treated this special case.
Everyone may come across something unpredictable and if we can act just like the manager in the Pizza Express, then the world will become a better one.
1.A. funB. musicC. playD. dinner
2.A. inB. behindC. atD. on
3.A. specialB. ordinaryC. extraordinaryD. particular
4.A. kitchenB. counterC. restaurantD. bank
5.A. proudlyB. impatientlyC. hurriedlyD. politely
6.A. satisfiedB. embarrassedC. pleasedD. unfriendly
7.A. managerB. chefC. husbandD. father
8.A. excitedlyB. graduallyC. immediatelyD. happily
9.A. sinceB. forC. asD. though
10.A. freeB. ordinaryC. regularD. cheap
11.A. provideB. fillC. equipD. furnish
12.A. satisfiedB. disappointedC. gratefulD. sympathetic
13.A. interestedB. worriedC. stressedD. relieved
14.A. criticizedB. treatedC. acceptedD. recognized
15.A. modestyB. curiosityC. generosityD. honesty
16.A. deliverB. showC. sellD. donate
17.A. generousB. sillyC. sensitiveD. selfish
18.A. satisfactionB. disappointment
C. thanksD. regret
19.A. receivesB. deservesC. needsD. wants
20.A. disapprovedB. appreciated
C. forgaveD. disliked
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科目：高中英语 来源：2017届江西丰城中学高三上期第一次段考英语试卷（解析版） 题型：语法填空
阅读下面材料，在空白处填入适当的内容（不多于1个单词）或括号内单词的正确形式。
Nowadays, more and more schools in China have rules making students wear school uniforms to school. A lot of Chinese students complain about_ 1. (wear) their school uniforms every day. But do American students get 2. (annoy) about their uniforms, too? American high schools usually have a dress code(衣着标准), 3. is about requirements for students' dressing. Boys at school must wear clean jackets every day. Girls are 4. (luck) than boys, for they have more flexible 5. (choose) than boys. They can either dress similarly to the boys 6. wear a dress. In general, it takes a student 10-15 minutes every morning 7. (dress) up for class. As students do in China, plenty of American students also have their complaints about school uniforms. What if students really dislike the dress code and want to get rid of it? Instead of getting punished, 8. (actual) there're ways to do that. At my school, "dress down" tickets 9. (sell) on school days. If students are willing to buy a ticket, they don't need to wear school uniforms the following day. I have a strong 10. (believe) that one day Chinese students can buy these tickets, too.
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科目：高中英语 来源：2015-2016学年四川成都外国语校高二下期末考试英语卷（解析版） 题型：书面表达
假设你是李华，最近国内一家英文报纸正在讨论北京动物园是否应迁出市区。以下是你所在班级讨论的情况。请你给该报写一封信，反映讨论结果。赞成迁出：1. 游客多，交通堵塞2. 郊区环境好。
反对迁出：1. 建于1906年，中外闻名2. 搬迁易造成动物死亡
注意：1. 词数100– 120;
2. 适当加入细节，以使充实、行文连贯，请勿提及真实学校名称。
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科目：高中英语 来源：2015-2016学年辽宁葫芦岛一中高二下期初摸底考试英语卷（解析版） 题型：短文改错
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏子符号（/\），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误仅限1词；
2. 只允许修改10处，多者（从第11处起）不计分。
Dear Editor,
We are students of Senior Three. We are writing to tell you the result of the survey “To Who You Go When in Trouble ” we have had in our class. Sixty percent of the students prefer to turn on their friends or classmates. Because they think they are of same age and can understand each other better. Thirty percent of the students would rather shared their troubles with their teachers or parents. The reason is that why they are of great experienced and can be believed in. Quite a few students who think them difficult to communicate with others, would rather deal with the troubles by themselves. In our opinions, we’d better turn to our parents or teachers with help. Only in this way can we solve the problems successful.
Yours,
Wang Lin
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科目：高中英语 来源：2015-2016学年辽宁葫芦岛一中高二下期初摸底考试英语卷（解析版） 题型：阅读理解
Back in the days when I wrote my first songs, I hated my voice. I saw myself as a songwriter and guitarist but never a singer! I continued to write songs, and to search for the perfect singer. After a few years I did discover a singer, so we started a project together. We held a few concerts, and put a lot of work into it. She forces me to sing some songs at concerts myself, so I started going to a bar to practice them. This was my first, small breakthrough.
One day she came round to my flat and informed me that she could no longer work with me, and also that the bar owner at the open mic venue(麦克风场地) had replaced us at short notice because some New York jazz star happened to be in town, and was available that evening to perform. The first bit of news made me sad and disappointed, but the second made me angry.
However, that same evening, with as much determination as I could muster (集合), I resolved to play three new songs at the bar, just as I had planned before. I was quite nervous, but I dragged myself down to the bar and sang those songs! I never felt so liberated(无拘束的). That night I couldn’t get to sleep. I was simply astonished, hardly believing that I was a person who acted so courageously, and that I’d been able to sing my songs myself.
Since then I’ve begun to encourage others to adopt a similar approach when they aren’t able to see their own potential. One example is an amateur fiddler (小提琴手) who could barely bring herself to lift her instrument to play in front of people. I forced her to ignore her fear, and simply get on with it. Now, a year or two later, she is a passionate, happy performer in front of any crowd!
Once you get the ball rolling in yourself, you can start inspiring those around you.
1.What was the author’s first breakthrough?
A. She found the perfect singer.
B. She started a project with her partner.
C. She started to practice songs at a bar.
D. She was able to sing all of her songs.
2.How did the author feel when she heard that her partner could no longer work with her?
A. Sad and disappointed.B. Sad and angry.
C. Disappointed and angry.D. Astonished and angry.
3.The amateur fiddler is mentioned in the last but one paragraph in order to show that the author ________.
A. has a good relationship with her
B. encourages others to see their potential
C. can perform in front of any crowd
D. is very interested in making friends
4.What’s the passage mainly about?
A. How to work with other singers.
B. The story of the author and an amateur fiddler.
C. How the author became a singer through her fighting spirit.
D. How to write beautiful songs.
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科目：高中英语 来源：2017届甘肃兰州一中高三9月考英语试卷（解析版） 题型：阅读理解
The Process of Ageing
At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelligence; but at this age the possibility of death is least. Earlier, we were infants and young children, and consequently more vulnerable (易受伤的); later, we shall undergo a progressive loss of our vigorous and resistance which, though vague at first, will finally become so steep that we can live no longer, however well we look after ourselves, and however well society, and our doctors, look after us.
This decline in vigorous with the passing of time is called ageing. It is one of the most unpleasant discoveries which we all make that we must decline in this way, that if we escape wars, accidents and disease we shall eventually “die of old age”, and that this happens at a rate which differs little from person to person, so that there are heavy odds in favor of our dying between the ages of sixty-five and eighty. Some of us will die sooner, a few will live longer — on into a ninth or tenth decade. But the chances are against it, and there is a virtual limit on how long we can hope to remain alive, however lucky and physically strong we are.
Normal people tend to forget this process unless and until they are reminded of it. We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigorous with time, of becoming more likely to die the older we get, was something self-evident, like the cooling of a hot kettle or the wearing-out of a pair of shoes. They have also assumed that all animals, and probably other organisms such as trees, or even the universe itself, must in the nature of things “wear out”.
Most animals we commonly observe do in fact age as we do, if given the chance to live long enough; and mechanical systems like a wound (上发条的) watch, or the sun, do in fact ran out of energy in accordance with the second law of thermodynamics (热力学). But these are not similar or equivalent to what happens when man ages. A run-down watch is still a watch and can be rewound. An old watch, by contrast, becomes so worn and unreliable that it eventually is not worth mending. But a watch could never repair itself — it does not consist of living parts, only of metal, which wears away by friction (摩擦). We could, at one time, repair ourselves — well enough, at least, to overcome all but the most instantly fatal illnesses and accidents. Between twelve and eighty years we gradually lose this power, an illness which at twelve would knock us over, at eighty can knock us out, and into our grave. If we could stay as vigorous as we are at twelve, it would take about 700 years for half of us to die, and another 700 for the survivors to be reduced by half again.
1.What can be learned from this passage is that ______.
A. people usually are unhappy when they are reminded of ageing
B. children reach their full intelligence at the age of twelve years
C. people are usually more likely to die at the age of twelve years
D. our first twelve years represent the peak of human development
2.The underlined word “it” in the last sentence of Paragraph Two refers to ______.
A. remaining alive until 65
B. dying before 65 or after 80
C. remaining alive after 80
D. dying between 65 and 80
3.What does “ageing” mean according to the passage?
A. It is a fact that people cannot live any longer.
B. It refers to a gradual loss of vigor and resistance.
C. It is usually a phenomenon of dying at an old age.
D. It is a period when people are easily attacked by illness.
4.What do the examples of the watch refer to in the last paragraph?
A. Normally people are quite familiar with the ageing process.
B. The law of thermodynamics functions in the ageing process.
C. All animals and other organisms undergo the ageing process.
D. Human's ageing process is different from that of mechanisms.
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科目：高中英语 来源：2016-2017学年黑龙江牡丹江一中高一9月考英语试卷（解析版） 题型：七选五
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
The eyes are the windows of the soul. Having a pair of bright, clear eyes is very important, so we should protect our eyes throughout our lives.
1. Don’t read while lying down or walking. Relax after every hour of reading.
Keep a distance from the TV set when you watch TV and give your eyes a rest every 30 minutes.
Don’t stare at the sun or try to read in the darkness. 2. This can damage your eyes easily.
Get your eyes checked often. Not many people have this habit, but it is necessary. If you feel that there is something wrong with your eyes, get them checked quickly. 3.
4. You can close your eyes for a few seconds or look into the distance for one or two minutes. A small break will relax your eyes and help to stop you from getting eye problems.
Be careful when you choose your glasses. 5. . Make sure your glasses are right for you . If they don’t feel right, get your glasses changed.
A. Develop good reading habits.
B. Rest your eyes whenever you can.
C. Make sure you get enough sleep every night.
D. Glasses that aren’t suitable for you could bring you trouble.
E. Even if you’re wearing sunglasses, never look directly at the sun.
F. Eye problem can be found and treated early with regular checks.
G. Drink green tea every day as a way to protect your eyes against eye problems.
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