Nuclear radiation （核輻射）has a certain mystery, partly because it cannot be detected （探測(cè)）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 or 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 at once by killing plenty of cells in important organs(器官). 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 serious. This is the case when only a few cells are hit, and when they are killed at once. 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(放射治療) and feel fine, then die of cancer five, ten, or twenty years later as a result. A child can be born weak or easy to get serious illness as a result of radiation absorbed by its grandparents.
小題1:According to the passage, the danger of nuclear power lies in       .
A．nuclear mysteryB．radiation detection
C．radiation levelD．nuclear radiation
小題2:Radiation can lead to serious trouble even at the lowest level        .   
A．when it kills a few cells
B．because the killed cells can’t be replaced
C．if it damages a few cells
D．unless the damaged cells can reproduce themselves
小題3:What does the author want to tell us?
A．Radiation can hurt us.B．Radiation is a subject scientists work on.
C．Radiation is a mystery.D．Radiation is the source of cancer.

小題1:D
小題1:C
小題1:A
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科目：高中英語 來源：不詳 題型：完形填空

Which came first, the chicken or the egg? This is one of life’s __1__ questions and people have been debating about it for thousands of years. Now scientists believe they have solved this _2__. Researchers from Sheffield and Warwick Universities in England discovered the answer __3__. They used a super computer to observe the shell-making process while a new shell was __4__. Then they found one protein called OC17 that is __5__ for forming eggshell. This is only found inside a chicken’s body, which is proof that the _6__ came first. The team was __7__ looking at how animals and birds make eggshells but suddenly made their surprising __8__. The big question now is where chickens came from. The _9__ is from dinosaurs.
The research team said eggshells are one of nature’s most __10__ creations. Professor John Harding from the team told reporters: “Understanding how chickens make eggshells is fascinating in itself, but it can also be __11__ in designing new materials.” Eggshells are very lightweight but incredibly strong. Even the most up-to-date materials __12__ by the world’s top engineers can not produce anything as __13__ as an eggshell. Professor Harding added that __14__ eggshells could help to cure bone diseases and design materials for the construction industry.“Nature has found wonderful ways that __15__ for all kinds of problems in materials science and technology — we can learn a lot from them.” he said.
小題1:
A．strangestB．bestC．oldestD．longest
小題2:
A．puzzleB．storyC．historyD．idea
小題3:
A．on purposeB．by chanceC．without hesitationD．a(chǎn)t work
小題4:
A．breakingB．changingC．disappearingD．forming
小題5:
A．necessaryB．easyC．kindD．impossible
小題6:
A．eggB．eggshellC．chickenD．dinosaur
小題7:
A．obviouslyB．originallyC．thoughtfullyD．surprisingly
小題8:
A．inventionB．mistakeC．statementD．discovery
小題9:
A．a(chǎn)nswerB．researchC．keyD．egg
小題10:
A．strangeB．ridiculousC．funnyD．a(chǎn)mazing
小題11:
A．hopefulB．helpfulC．respectfulD．colorful
小題12:
A．boughtB．cutC．designedD．carried
小題13:
A．brilliantB．ordinaryC．1ightD．strong
小題14:
A．findingB．watchingC．studyingD．making
小題15:
A．happenB．workC．waitD．look

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科目：高中英語 來源：不詳 題型：閱讀理解

So you have been called for an interview---well done?Your effort has been paid off? You will feeI better at the interview if you show an understanding of the nature of the organization．
Ask someone who already does it，or check it with one of the advisers．
Ask a member of your family or a friend to act as the employer and to give you an unreal interview．Be as realistic as possible，answer the questions seriously．Afterwards discuss how it went．Think about how the employer would prefer to see your look．Remember---the majority of employers are over 30.
It is not wise to rush out and buy new clothes.which will be worn for the first time at the interview．You’ll feel more at ease in a familiar dress．
Carelessness in any of these could cost you the job．Arrive at least 15 minutes before time，this will give you a chance to have a look around，read the notice board and get the feel of the place．Being late at the interview produces a bad impression．The first impression that the interviewer gets of you is formed as you walk through the door，so take a couple of deep breaths．
Be ready to shake hands if the interviewer offers．
Don’t take a seat until asked．Then sit comfortably．
Make eye contact  when you are greeted and again if you shake hands．And during questioning,eye contact is a form of non-verbal greeting．
Remember the interviewer’s name and use it from time to time．
Be ready for the question “Is there anything you want to ask?” Before the interview you should get ready for two or three such questions．Look on these not just as a chance to get information but as a means to give your employer a better impression．Asking can show knowledge but avoid asking about holidays，pensions(養(yǎng)老金)and so on．It looks as if you are tired even before you begin．You can check on these later，when the hope for job is offered．
And if you fail, look upon the interview as an experience in itself．Learn from it．We wish you good luck and good job hunting．
小題1:Before you go to see the employer，you’d better      .
A．find a dress you have got used to
B．buy some modern shoes，ties，etc．
C．have your hair cut
D．put on your newly-bought clothes
小題2:What does the phrase“eye contact”means?
A．A kind of greeting without words．
B．Shaking hands with the interviewer．
C．Looking at each other for a long time．
D．A way of getting a desirable job．
小題3:People usually do the following things before a job interview．Which is the right order for doing them?
a．Asking a friend to give you an unreal interview．
b．Understanding the nature of the organization．
c．Paying attention to your clothes．
d．Arriving at the place of the interview ahead of time．
e．Getting some information from the advisers．
A．a(chǎn)—e—b—c—dB．d—c—b—a—e
C．b—e—a—c—dD．e—d—a—b—c
小題4:Why do you prepare yourself for some Is--there·-anything·-you·-want--to-say questions?
A．To give the employer more information．
B．To get information about holiday and pension．
C．To impress the employer better and get further information from the company as well．
D．To show that you are the most knowledgeable．

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科目：高中英語 來源：不詳 題型：閱讀理解

If English means endless new words, difficult grammar and sometimes strange pronunciation, you are wrong. Haven't you noticed that you have become smarter since you started to learn a language?
According to a new study by a British university, learning a second language can lead to an increase in your brain power. Researchers found that learning other languages changes grey matter. This is the area of the brain which processes information. It is similar to the way that exercise builds muscles.
The study also found the effect is greater, the younger people learn a second language.
A team led by Dr Andrea Mechelli, from University College London, took a group of Britons who only spoke English. They were compared with a group of "early bilinguals" who had learnt a second language before the age of five, as well as a number of later learners.
Scans showed that grey matter density (密度) in the brain was greater in bilinguals than in people without a second language. But the longer a person waited before mastering a new language, the smaller the difference.
"Our findings suggest that the structure of the brain is changed by the experience of learning a second language," said the scientists.
It means that the change itself increases the ability to learn.
Professor Dylan Vaughan Jones of the University of Wales, has researched the link between bilingualism and maths skills. "Having two languages gives you two windows on the world and makes the brain more flexible (靈活的),"he said. "You are actually going beyond language and have a better understanding of different ideas."
The findings were matched in a study of native Italian speakers who had learned English as a second language between the ages of two and 34. Reading, writing, and comprehension were all tested. The results showed that the younger they started to learn, the better. "Studying a language means you get an entrance to another world," explained the scientists.
小題1:The main subject talked about in this passage is ______.
A．science on learning a second language
B．man’s ability of learning a second language
C．1anguage can help brain power
D．1anguage learning and maths study
小題2: In the second paragraph, the writer mentions “exercise” in order to ______.
A．say language is also a kind of physical labor
B．prove that one needs more practice when he (she) is learning a language
C．to show the importance of using the language when you learn the language
D．make people believe language learning helps grey matter work well
小題3:We may know from the scientific findings that ______.
A．the earlier you start to learn a second language, the higher the grey matter density is
B．there is no difference between a later second language learner and one who doesn't know a second language
C．the experience of learning a second language has bad effect on people's brain
D．the ability of learning a second language is changing all the time
小題4:The underlined word “bilingual'’ probably means ______.
A．a(chǎn) researcher on language learning
B．a(chǎn) person who is good at learning foreign languages
C．a(chǎn) person who can speak two languages
D．a(chǎn)n active language learner

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科目：高中英語 來源：不詳 題型：閱讀理解

Work your brain!
Between 2 and 3 pounds of wonder，it controls everything we say，do or think，who we are and what we care about. The way we walk or laugh or figure out things. What we like and the talents we possess. How we see and talk and run and jump and process our food.
The brain uses 20 percent of our body's oxygen and 20 percent of its blood. Somewhere within its protein，fat, 100,000 miles of blood vessels and 100 billion nerve cells，it helps us remember where we put our gym shoes. Change our temperature so we don't die because of the heat or cold. Speed us up or slow us down. Help us choose between orange juice or orange­flavored drinks.
Its intricacies(復(fù)雜性)are stunning，far beyond anything most of us can imagine. To keep this work of art as polished(有光澤的) as possible we need to eat right，exercise and keep mentally stimulated(刺激)．
Good nutrition helps brain cells communicate with each other. Exercise stimulates a hormone(荷爾蒙)in our brain that improves memory. Mental stimulation keeps you sharp even as you age.
“It's very important that we tell people to be physically active and mentally active，” said neurologist Malcolm Stewart.
“People cannot stop aging，but you're able to reduce the damage；you're able to keep the function up.”
Following are Dr.Stewart's advice for improving brain health：
Nutrition
Avoid fast food. Follow the old adage(格言，諺語)：For breakfast，eat like a king；for lunch，like a queen；for supper，like a beggar.
Exercise
Do a combination of stretching aerobic and muscle­strengthening every day.
Mental games
Try to have a sense of hope about the future. Do puzzles. Listen to music. Reach out to others to make their lives better.
小題1:The purpose of the author in writing this passage is to ______.
A．inform us how the brain works
B．give us advice on how to keep the brain healthy
C．tell us that the brain plays an important role in our lives
D．show how special the brain is to us
小題2:The word “stunning” in Paragraph 5 means ______.
A．interesting 　B．strangeC．significant　D．a(chǎn)mazing
小題3:According to the text，more exercise ______.
A．keeps our mind sharp 　　
B．helps improve our memory
C．gives our brain a rest 　　
D．is good for brain cells communicating with each other
小題4:In order to keep brain healthy，we should avoid ______.
A．eating a good lunch B．doing puzzles
C．eating a large supper D．taking aerobic exercise

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科目：高中英語 來源：不詳 題型：閱讀理解

Besides containing attractive flowers, trees and other plants that beautify the community, eco-friendly rain gardens are healthy for the environment and the people living and working nearby.
A rain garden is not very different from a traditional garden. It is just a far more eco-friendly garden. Usually it is built lower than the ground. Rain gardens make smart use of rain and storm water by temporarily holding water from rain and storms and letting it soak（浸人）slowly into the ground before it runs into streams or enters the public drinking water supply.
Thus, a rain garden keeps the water, allowing it to be used as needed by plants in the rain garden, rather than flowing immediately into nearby streams and going unused. The water will soak slowly into the ground within a day or two. This creates an advantage that the rain garden does not allow mosquitoes to breed. This is a simple, attractive, and eco-friendly “green” way to treat storm water.
What’s more, planting a rain garden helps reduce pollution and improve the environment. Without using expensive machinery and chemicals, rain gardens remove harmful chemicals in the rainwater and cut down on the amount of pollution reaching streams and rivers by up to 30%.
Native plants are recommended for rain gardens because they are more used to the locals climatem, soil, and water conditions. They may attract local wildlife such as native birds. Water your rain garden immediately after planting and once a week, unless you have had at least an inch of rain during the week. Once the native plants establish the necessary root system, it will require little care.
Often, local governments and private businesses develop large rain gardens in their yards and in public parks as a way to improve the environment and solve flooding problems. However, you don’t need to be a professional environmental engineer to create a rain garden. As long as you’re eco-conscious homeowners, you can help the environment by building smaller rain gardens in your yards.
小題1:Which of the following is the eco-friendly function of rain gardens discussed in Paragraph 4?
A．They can keep the rain and storm water.
B．They can help reduce the pollution problem.
C．They can be healthy for the people around.
D．They can make the environment more beautiful.
小題2:One of the main reasons why native plants are recommended is that           .
A．they cost less and are much easier to get
B．they may attract local wildlife to come
C．they require little care from the local gardeners
D．they are more used to the local growing conditions
小題3:What do we know about rain gardens?
A．They need little water after all the plants are planted.
B．They usually need at least an inch of rainwater a week.
C．They may attract local birds and change the locals climate.
D．They may reduce the water pollution problem by 70%.
小題4:Who are the intended readers of the passage?
A．Homeowners.B．Governors.C．Engineers,D．Educators.

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科目：高中英語 來源：不詳 題型：閱讀理解

During the years after the terrorist attack on the World Trade Center, structural engineers have been trying hard to solve a question that would otherwise have been completely unthinkable: Can building be designed to stand catastrophic blasts (攻擊；爆破) by terrorists?
Soon after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) traveled to ground zero as part of a project funded by the National Science Foundation. They spent two days beginning the task of formulating (構(gòu)思) ideas about how to design such structures and to search for clues on how to do so in buildings that were damaged, but still are standing.
“Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage,” said Mr. Bruneau, Ph.D. “Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks,” he added.
Photographs taken by the investigators demonstrate the monumental damage to the World Trade Center towers and buildings nearby. One building a block away from the towers remains standing, but was badly damaged. “This building is many meters away from the World Trade Center and yet we see a column (柱子) there that used to be part of that building,” explained A. Whittaker, Ph.D. “The column became a missile that shot across the road, through the window and through the floor.”
The visit to the area also brought some surprises, according to the engineers. For example, the floor framing (框架) system in one of the buildings was quite strong , allowing floors that were pierced by tons of falling debris (殘礫) to survive. “Good framing systems may provide a simple, but reliable strategy for blast resistance,” he added. Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails. “We also need a better understanding of the mechanism of collapse,” said A. Whittaker. “We need to find out what causes a building to collapse and how you can predict it.”
A. Reinhorn, Ph.D. noted that “earthquake shaking has led to the collapse of buildings in the past. Solutions developed for earthquake-resistant design may apply to blast engineering and terrorist-resistant design. Part of our mission now is to transfer these solutions and to develop new ones where none exist at present.”
小題1:The question raised in the first paragraph is one _____ .
A．that was asked by structural engineers a month ago
B．that is too difficult for structural engineers a month ago
C．that was never thought of before the terrorist attack
D．that terrorists are eager to find a solution to
小題2:The column mentioned by Dr. Whittaker _____ .
A．was part of the building close to the World Trade Center
B．was part of the World Trade Center
C．was shot through the window and the floor of the World Trade Center
D．damaged many buildings near the World Trade Center
小題3:A surprising discovery made by the investigators during their visit to ground zero is that _____.
A．floors in the faraway buildings remained undamaged
B．some floor framing systems demonstrate resistance to explosion
C．complex floor framing systems are more blast resistant
D．floors in one of the buildings were pierced by tons of debris
小題4: What Dr. Reinhorn said in the last paragraph may imply all the following EXCEPT that _____.
A．blast engineers should develop new solutions for terror-resistant design
B．blast engineering can borrow technologies developed for terror-resistant design
C．solutions developed for earthquake-resistant design may apply to terrorist-resistant design
D．blast engineering emerges as a totally new branch of science

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科目：高中英語 來源：不詳 題型：閱讀理解

Most schools forbid chewing gum, but in a few years they might consider changing that rule. Why? Scientists are finding evidence that gum chewing may be good for your health. It may even help improve your test scores.
This exciting research is just beginning. And in the meantime, companies are also experimenting with adding vitamins, minerals, medicines, and other substances that could give gum the power to cure headaches and fight everything from serious diseases to bad breath.
Other researchers are finding that gum might work better than a pill to deliver medicines and other substances into the bloodstream. That’s because the lining (膜) of our cheeks can absorb certain substances more quickly than our stomachs and intestines (腸) can.
That discovery could help other researchers develop medicine-containing gums that fight colds, ease headaches, battle nervousness, and more. Scientists might even create antimicrobial (抗菌的) gums that cure bad breath.
Those projects may take years, but gum scientists have already had at least one recent success: They’ve created a gum that could help us stay awake.
Researchers have produced a gum called Stay Alert. Each stick has as much caffeine as a cup of coffee. It can take an hour for the caffeine in coffee to have its full effect, but the caffeine in Stay Alert hits in just a few minutes.
The gum is easy to transport and it’s stable in cold and hot climates. Unlike a pill, it doesn’t require water to swallow. Those qualities make it easy for soldiers to use.
For now, Stay Alert is available only to the military (軍隊(duì)). The manufacturer may one day offer it for sale to the public. People who work at night, such as truck drivers and medical personnel who ride in ambulances, might benefit from a product like Stay Alert.
小題1: The passage mainly talks about _____.
A．the rule of forbidding chewing gum in school
B．new research on chewing gum
C．different kinds of chewing gum
D．the relationship between chewing gum and medicine
小題2: What does the underlined word “hits” in Paragraph 6 probably mean?
A．Touches.B．Attacks.C．Takes effect.D．Affects badly.
小題3:According to the passage, Stay Alert is a gum which can help people _____.
A．stay awakeB．fight colds
C．cure headachesD．overcome nervousness
小題4: It can be inferred from the passage that _____.
A．stay Alert is not easy to store
B．stay Alert needs water to swallow
C．stay Alert is available to the public now
D．we can’t buy gums that cure bad breath now

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科目：高中英語 來源：不詳 題型：閱讀理解

Before a new type of airplane goes into service, every part of it is tested again and again. But there are two tests that are more important than all the others.
The first is called the " tank(貯水池) test". A modem airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure (結(jié)構(gòu))of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure (壓力) on a small window is like a huge foot that is try­ing to get out. If a small part of the plane were to fail, the plane would explode (爆炸)in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air.  The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger. 
The most dangerous test happens when the new plane is going through test flights in the air. The pilot must find out exactly what happens when the engines (發(fā)動(dòng)機(jī)) are all shut off at once. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers.
小題1:By doing the "tank test", the engineers can find out _______.
A．the amount of air in the planeB．the strength of the plane structure
C．the pressure inside and outside the planeD．the power of the airplane engines
小題2:What will happen to the plane under the "tank test"?
A．It will be broken.B．It will be made stronger.
C．It will be filled with water.D．It will be tested by pilots,
小題3:According to the text, why are test flights most dangerous?
A．The plane may explode in the air.B．The pilot may lose control of the plane.
C．The engines may be damaged.D．Too much air may get into the plane.
小題4:What might be the most suitable title for the text?
A．Two Important Tests on Airplanes B．The Importance of Flying Safely
C．The Danger of Testing Airplanes D．How Airplanes Are Made and Tested

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