精英家教網 > 高中英語 > 題目詳情
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．at 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．answerB．researchC．keyD．egg
小題10:
A．strangeB．ridiculousC．funnyD．amazing
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

小題1:C
小題1:A
小題1:B
小題1:D
小題1:A
小題1:C
小題1:B
小題1:D
小題1:A
小題1:D
小題1:B
小題1:C
小題1:A
小題1:C
小題1:B

小題1:C oldest“古老的”。
小題1:A puzzle“難題，謎團”。
小題1:B by chance“偶然”。符合題意。
小題1:D shell-making process“蛋殼形成的過程”，故選D。
小題1:A necessary，是蛋殼形成必須的。
小題1:C chicken“(小)雞”，蛋白質OC17只存在雞的體內，故先有雞。
小題1:B originally“最初，起初”，起初在觀察蛋殼如何形成時，
小題1:D discovery“發(fā)現(xiàn)”�！巴蝗话l(fā)現(xiàn)了這個現(xiàn)象”。
小題1:A“答案是雞來自恐龍”。answer與question對應。
小題1:D根據文意知，選D，蛋殼是自然界最令人驚異的發(fā)明之一。
小題1:B helpful“有幫助的”。蛋殼能幫助組織新物質。
小題1:C designed“被......設計”。
小題1:A brilliant“燦爛的，光輝的”。形容蛋殼的優(yōu)點。
小題1:C研究團隊是在“研究”蛋殼。
小題1:B work for…“為......效力”。自然界蘊含解決各種問題的奇妙的的方法。
練習冊系列答案
相關習題

科目：高中英語 來源：不詳 題型：閱讀理解

A student is learning to speak British English. He wonders(想知道): Can I communicate(交際) with Americans? Can they understand me? Learners of English often ask: What are the differences between British and American English? How important are these differences?
Certainly, there are some differences between British and American English. There are a few differences in grammar. For example, speakers of British English say “in hospital” and “Have you a pen?” Americans say “in the hospital” and “Do you have a pen?”.Pronunciation is sometimes different. Americans usually sound theirs in words like “bird” and “hurt”. Speakers of British English do not sound theirs in these words. There are differences between British and American English in spelling and vocabulary. For example, “colour” and “honour” are British, “color” and “honor” are American.
These differences in grammar, pronunciation, spelling and vocabulary are not important, however. For the most part, British and American English are the same language.
小題1:According to this passage, a student who is learning to speak American English might be afraid that __________.
A．British people cannot understand him
B．American people cannot understand him
C．the grammar is too hard for him
D．the spelling is too hard for him
小題2:American English and British English are different in __________.
A．spellingB．pronunciationC．grammarD．all of the above
小題3:What is NOT mentioned(提及) in the passage?
A．Whether there are differences between British English and American English.
B．Whether British English and American English are one language or two.
C．How the differences between British English and American English came about.
D．How important the differences are.
小題4:Most ______say “Do you have a watch?”
A．British peopleB．AmericansC．childrenD．teachers
小題5:According to this passage, British people and Americans have ______ difficulty in understanding each other.
A．littleB．muchC．someD．great

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

People live in different parts of the world and lead different types of lives. Their lifestyles change across the different areas in the world. What is the difference between a city and country life? Let us see.
We can see the modern facilities everywhere in the city like the Internet, telephone, television and satellite communication facilities are widely available in the city. A majority of families in the city are enjoying this technological advancement.
The increasing population has led to an imbalance in human population. More and more industries have led to environmental problems like pollution.
However, the rise in economic growth has resulted in a self-centered nature of society. While technological advancement has brought the world closer, human beings have gone far apart from each other.
The country is not crowded with constructions all over. Houses are rather widely spaced with enough room for fields and gardens. The country is the only area fortunate enough to house the greens. People in the country live in close to nature. Apart from people, there is room for pets and animals that help keep a balance in nature.
Due to a lesser number of people in the country, it is not overcrowded by people. These areas have least amounts of pollution. Pollution is less also because of very less number of industries in the country. The life may not be as enjoyable as that in the city, but the people there are generous, kind and friendly. The country is the one where humanity(人性) is still alive.
Every coin has two sides to it. While we can’t enjoy expensive things and technology in the country, it is rich in its relationship with ‘nature’. The city life is modern in technology and career opportunities. However, the falling humanity and a bad environmental balance affect the bright future of city life.
小題1:What’s the main purpose of the passage? _________.
A．To persuade more people to live in the country.
B．To inform us of some information about a better life.
C．To tell us differences between city life and country life.
D．To explain why people don’t want to live in the city.
小題2:Which of the following shows the right structure of the passage? __________.
①                   ①                                       ①
A．②③④⑤⑥B．②③④⑤⑥⑦C．①②③④⑤⑥D．④⑤⑥②③
⑦                                           ⑦                ⑦
小題3: According to the passage, the main reason for pollution is ____________.
A．technology and economyB．population and industries
C．population and humanityD．industries and balance.
小題4:The underlined word in the fifth paragraph most probably refers to ___________.
A．green gasB．green buildingsC．green landsD．green animals
小題5:It can be inferred from the last paragraph that __________
A．it’s up to you whether to choose city life or country life.
B．both city life and country life have advantages and disadvantages.
C．more and more people will move to the country in the future.
D．the young prefer city life while the old choose country life.

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

In many parts of the world，cars play an important role in daily life and many societies would not exist without them. So the idea that in 20 years’ time, no one will own cars may be hard to believe. But this is the prediction made by a team of transport researchers who are taken seriously, not only by government but also by car manufacturers.
The Human Science and Advanced Technology Institute at Loughborough in the UK is part of an international research program. The team there believes that by 2020 all cars will be computerized, which will mean much saving，no accidents and better use of roads. The super-intelligent car of the 21st century will drive itself, and it will not be owned by one individual. Instead, we will have a choice of cars and change them as frequently as we change our clothing.
According to Dr. David Davis，who leads the research team, these predictions are based on the rising cost of the car culture, which had blocked up our cities, polluted our air, and caused more deaths than both world wars put together.
Davis says cars will be fitted with some intelligent devices to regulate the distance between one car and another. The car will automatically speed up, or slow down, to match the speed of the car in front. Computers are much safer drivers than people, so cars in a road train will be able to drive much closer together than cars driven by people. By 2010, Dr. David Davis believes, car technology will give motorists a clear view of the road, whatever the weather conditions, by projecting an image of the road ahead on to the car’s windscreen. And by 2020, cars will travel in convoy linked to each other electronically. Cars will be connected by an electronic tow bar to the car in front to form “road-trains”. “The front vehicle in such a train burns the normal amount.” says Davis. “But all the others in the train would bum about ten percent 0f the normal amount, and so produce about ten percent of the pollution.”
小題1: We know from the passage that governments and car manufacturers        .
   A. do not believe the prediction that no one will own cars by 2020
   B. are devoted to the technological revolution in car industry
C. consider the predictions seriously
   D. have put the super-intelligent car into mass production
小題2: Which of the following will be the characteristic of the cars of 2020?
   A. The car will speed up out of control．
   B. We will own as many cars as we want．
C. All cars will be driven by computers．
D. Cars will produce more pollution than present ones．
小題3:The leader of the research team believes that the present car culture will change because        .
A. cars play a very important role in daily life
B. many societies would stop functioning without cars
C. cars should not be owned by one individual
D. it causes many deaths to human society
小題4:The expression closest in meaning to the phrase “in convoy” in the last paragraph is        .
A. in line         B. sidelong
C. side by side     D. shoulder to shoulder
小題5: What will happen if cars are joined to each other electronically in 2020？
A. Motorists will get a clear view of the road．
B. The weather condition will not have effect on motorists．
C. There will be less pollution caused by car．
D. All trains will burn less fuel than present．
 

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Goals can help you do, be and experience everything you want in life. Instead of just letting life happen to you, goals allow you to make your life happen.
Successful and happy people have an idea of how their life should be and they set lots of goals to help them succeed. By setting goals you are taking control of your life. It’s like having a map to show you where you want to go. Think of it this way. There are two drivers. One has a destination in mind which is laid out for her on a map. She can drive straight there without any wasted time or wrong turns. The other driver has no goal or destination or map. She starts off at the same time from the same place as the first driver, but she drives without an aim around, never getting anywhere, just using up gas and oil. Which driver do you want to be？
Winners in life set goals and follow through on them. Winners decide what they want in life and then get there by making plans and setting goals. Unsuccessful people just let life happen by accident. Goals aren’t difficult to set―and they aren’t difficult to reach. It’s up to you to find out what your goals and ideals（理想）really are.
Research tells us that when we write a goal down, we are more likely to achieve. Written goals can be reviewed regularly，and have more power. Like a contract with yourself, they are harder to neglect（忽視）or forget. Also when you write your goals in a particular way, you are able to make yourself be continuously alert（警覺）to situations that will further your goals.
小題1:The writer gave the example of two drivers to show                .
A．how stupid the first driver wasB．the importance of having a map and right direction
C．how stupid the second driver wasD．the importance of setting goals
小題2:According to the passage, successful people are different from unsuccessful ones because   .
A．the successful people set goals for everything and can get help from others
B．the unsuccessful people always set unrealistic plans for themselves
C．the successful people set goals in their lives and make plans to carry it out
D．the unsuccessful people make plans for everything but can not work hard
小題3:According to the passage, the most important thing in realizing one’s ideal is to      .
A．try to be realistic about one’s ability
B．let others help him or her to make his or her dream come true
C．let others understand him or her first，then work together with them
D．have a clear mind of what he or she wants in life
小題4:Which of the following is TRUE according to the passage？
A．Goals can make you gain everything you want in life
B．Only successful people can be happy
C．If you want to succeed，you need a set long-term goals instead of short-term Goals
D．When we put our goal down on papers, we are more likely to succeed
小題5:Which is the best title for the passage?
A．Goals help you succeedB．How to succeed
C．Why we always failedD．A research on setting goals

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

When you’re surfing the Internet on your laptop from your dorm or home, do you know your personal details are being gathered secretly? And would you be surprised to know the information may be sold cheaply to advertisers and marketers?
According to an investigation by The Wall Street Journal, all it takes is a tiny file in a computer-a single code consisting of a long series of numbers and letters- to record the computer user’s age, gender, location, favorite movies and hobbies.
The newspaper reports that Lotame Solutions Inc., a New York company, uses sophisticated(高科技) software called a "beacon" to capture what people are typing on a website.
Lotame packages that data into profiles（個人資料）about individuals, only without their names, and sells the profiles to companies seeking customers．Batches of such data may be sold for a few dollars.
The Wall Street Journal survey discovered that spying on Internet users is one of the fastest-growing businesses on the World Wide Web.
The "cookie"- a tiny text file put on your PC by websites or marketing firms which might be used to remember your preferences for one site, or to track you across many sites is already old news．There are new and more complex tools such as "beacons" which scan in real time what people are doing on a webpage．These beacons instantly assess the Internet user’s location, income, shopping interests and even medical conditions.
Millions of Internet users around the world also face unprecedented（空前的）threats．Private, sensitive, personal and business information is being gathered and sold without their knowledge.
Companies insist the information they gather is anonymous and the data is used harmlessly. But the technology has grown so powerful that even some of the biggest websites in the US don’t know that they were installing intrusive files on visitors’ computers．These include MSN.com and Yahoo.com.
Next time you visit a webpage and find an ad banner advertising something you’ve been planning to buy, don’t be amazed that your computer can read your mind.
小題1:The purpose of the passage is to          .
A．introduce a tiny file in a computer-a single code
B．show how your individual information was let out when you surf the Internet
C．show how to protect your privacy
D．introduce a sophisticated software called a "beacon"
小題2:．All of the following statements are Wrong except          .
A．Lotame sells the profiles about individuals to companies seeking customers with their age, gender, location, hobbies and names
B．spying on Internet users is the fastest-growing businesses on the World Wide Web
C．some of the biggest websites in the US know they were installing intrusive files on visitors’ computers
D．a tiny file in a computer-a single code consisting of a long series of numbers and letters can record users’ information
小題3:It can be inferred that          .
A．because the data is used harmlessly．Internet users around the world will not face threats
B．when a person surf the Internet, his personal details may be let out without his knowledge
C．your computer can really read your mind
D．MSN.com and Yahoo.com．use software to capture what people are typing on a website
小題4:According to the passage, “beacon”          .
A．is a tiny text file put on your PC by websites
B．is a soft ware that can package that data into profiles about individuals
C．can assess the Internet user’s location, income, shopping interests and even medical conditions
D．is not more complex than the "cookie"
小題5:What’s the writer’s attitude to this problem?
A．NeutralB．WorriedC．Optimistic D．Indifferent

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

In today's world of cell phones, mini laptops and MP3 players, most people have at least one time-telling tool with them. Since these devices are so common, is time running out for the 500-year-old watch? According to some consumers, yes. New Jersey teenager Charlie Wollman says a watch is "an extra piece of equipment with no necessary function." Many young adults agree ─ and use their cell phones to tell time. Louis Galie, a senior vice president at Timex, said that fewer young people wear watches today than five years ago. As a result, some people claim that the watch industry is at a crossroads.
However, watchmakers optimistically say that watches regain popularity when consumers reach their 20s and 30s. By then, they are willing to spend money on a quality timepiece that doesn't just keep good time. Fifty years ago, watchmakers boasted(自夸) about their products' accuracy. But in recent years, the watch industry has transformed itself into an accessory(附件，配件) business. And for many today, the image(外形) a watch communicates has become more important than the time it tells.
"Complications" ─ features that go beyond simple timekeeping ─ are an important part of a watch's image. Today's watches offer a host of features that suit almost any personality. These features include altitude trackers(追蹤器), compasses(指南針), lunar calendars, USB drives, and even devices that measure the effectiveness of golf swings!
Creativity is also a key element in today's watches. For example, Japanese watchmaker Tokyoflash makes watches that don't even look like watches. The company's popular Shinshoku model uses different color lights to tell the time. It looks more like a futuristic bracelet(手鐲) than a watch. Another Japanese watchmaker, EleeNo, makes a "handless" watch. Using a ring of circles to keep time, this watch makes an excellent conversation piece.
Whether a watch communicates fashion sense, creative flair or a love of sports, consumers want their timepieces to stand out. Nowadays, everyone has the same kind of gadget in their bags, so people want to make a statement with what's on their wrists(手腕). Will this interest in wrist fashion last? Only time will tell!
小題1:Why aren’t watches popular with young people as before?
A．Because watches cannot keep good time as cell phones, mini laptops and MP3 players.
B．Because watches are featured by the disadvantages of simple function
C．Because watches are too expensive to afford.
D．Because watches don’t have beautiful appearance as other modern time telling tools.
小題2: What does the underlined sentence in Paragraph 1 mean?
A．Watching-making is facing a survival crisis challenge.
B．Watching-making is faced with the developing opportunity.
C．Watching-making becomes the sun rising industry.
D．Watching-making has a specific development target.
小題3: It can be implied that ____________________.
A．people will gradually lose interest in watches as they grow older
B．watchmakers hardly change the development strategy for watches
C．today’s watches are better than those in the past in quality
D．customers used to be more concerned with the quality of a watch than with its image.
小題4:The following qualities can make a watch popular EXCEPT _________.
A．multifunctionB．accuracyC．nice designD．low price
小題5:What’s the best title of the passage?
A．Watches and TeenagersB．The History of Watches
C．The Accuracy of WatchesD．Watches Tell More Than Time

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Honeybees
Honeybees can do three kinds of jobs.
It is one of the most unusual insects in the world. Bees are special because they divide up their honeybee work. Each bee has a certain job to do.
The busiest bee is the worker. Workers build the nest, called a hive. Inside the hive, workers make a honeycomb from wax(蜂蠟). They store honey there for food. Workers are always cleaning and fixing the hive. They even stand at the opening and fan their wings to cool the hive. Worker bees will attack anything—even people—to keep their hive safe.
Another kind of bee is the drone(雄蜂). Drones are male bees, and their job is to fly with the queen bee and mate with her. After the queen mates, the worker bees drive the drones away. The drones then starve to death.
The third kind of bee is the queen. Each hive needs only one queen, and her job is laying eggs. She can lay as many as 2, 000 eggs a day.
小題1:The bee’s nest is called a _______.    
A．hive B．honeycomb C．drone D．wax
小題2:Which jobs do workers do?
A．They lay 2, 000 eggs each day and build a nest.
B．They mate with the queen bee and then starve.
C．They clean the hive and keep it cool.
D．They attack the queen bee.
小題3:According to the story, bees _______.  
A．are very dangerous insects
B．will attack anything or anyone to protect the hive, if necessary
C．are like any other insect that flies
D．eat each other as food
小題4:The drone is driven away when its job is finished, because _______.  
A．it attacked the workersB．it is no longer needed in the hive
C．the queen bee has diedD．it ate the queen bee

查看答案和解析>>

科目：高中英語 來源：不詳 題型：閱讀理解

Nuclear radiation （核輻射）has a certain mystery, partly because it cannot be detected （探測）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.

查看答案和解析>>

同步練習冊答案