In American crime movies, policemen search crime scenes for anything that might belong to a criminal— bits of fingernail , blood or hair— in order to find out who they are. What they hope to find is the key to their identity—their DNA.

DNA is the chemical that contains a person’s genetic makeup. Every person, except for identical twins, has unique DNA information. That is why we can use it to identify someone.

There is no doubt that DNA evidence is becoming a very powerful tool for law enforcement (實(shí)施)officers. In the US, all 50 states and the federal government keep DNA databases of some criminals after they have been convicted（宣告有罪）. Whenever a crime happens, the police collect DNA from the crime scene and compare this with samples they already have in the criminal database. If they match any suspect in the database, then they’ve caught their criminal. Even if they don’t, the DNA sample can still be used to determine the person’s sex, height, hair and eye color and other characteristics. This helps police to create a physical profile of the criminal.

Some people feel that the database should be made bigger to contain everyone’s DNA and help to solve many more crimes. This would also avoid mistakes when someone is wrongly convicted of a crime. DNA doesn’t make mistakes.

However, other people are worried that it would violate their privacy. Someone’s DNA can be used to gather information such as the person’s family and ethnic（種族的） background, whether he or she has a gene mutation（突變）or certain genetic diseases, and other personal issues. People are afraid that this information might be used inappropriately. They may fear that employers might read it and treat them differently. People may also be afraid that personal data might get into the hands of insurance firms or loan companies. For example, if they knew from your DNA that you had a genetic risk of a serious disease, they might be able to refuse you life insurance, a loan, or even a job.

Clearly, the use of DNA evidence will continue to help the police solve crimes. However, social and ethical concerns about DNA will also remain a topic of debate.

47. What is the article mainly about?

A. The possibilities opened up by DNA technology     B. The controversy over DNA databases

C. How DNA databases are built                    D. What role DNA plays in solving crimes.

48. Which is TRUE according to the article?

A. DNA evidence has been widely used in criminal law cases.

B.Everyone in the world has their own unique DNA composition.

C. In America, anyone who has been convicted must submit a  DNA sample.

D. America’s DNA database is the biggest national DNA database in the world.

49. Some people suggest building a database containing everyone’s DNA because _____.

A. it would mean fewer people commit crimes.

B. it would make it more convenient for the government to gather information

C. it would help the police identify suspects more efficiently and accurately

D. such a database could be helpful in many more fields besides solving crimes

50. What is the great concern over the DNA database according to the article?

A. Some people might make use of it to make money.

B. It would threaten people’s individual privacy and rights.

C. The DNA stored in the database might be labeled wrongly.

D.The DNA would have a gene mutation and become inaccurate.

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科目：高中英語 來源：2012-2013學(xué)年四川省雅安中學(xué)高一10月月考英語試卷（帶解析） 題型：閱讀理解

Robert Frost was one of America’s best known and most honored serious writers. But his fame came late in his life.
He was born in San Francisco, California in 1874. He lived in California during his early  childhood. He was named after the chief Southern general in America’s Civil War. The general’s name was Robert Edward Lee. The poet was named Robert Lee Frost, because his father wanted to honor the general.
Someone once asked another American writer, Ernest Hemingway, how to become a writer. The best thing, he said, was to have an unhappy childhood. If this is true, Robert Frost’s childhood was unhappy enough to make him a very good writer. Robert Frost’s father was a reporter who wanted to be a politician. He often drank too much wine and became angry. Robert was the victim (受害者) of his anger.
Robert Frost finished high school in 1891. After high school, Robert’s grandfather offered to pay his costs at Dartmouth College. But Robert left the school after a few months. He did not like it. He spent the next few years working at different jobs. At one time, he worked in a factory. Later, he repaired shoes. He was a teacher. He was a reporter. Always, he wrote poetry.
Robert Frost attended Harvard University for two years. After that, he returned to the many jobs  he held before. For a while, Frost tried to take care of a farm in the state of New Hampshire. He was not a successful farmer. And he continued to write poetry. He said that until 1930, he earned only about ten dollars a year from writing.
In 1912, he decided to try to make a new start. He took his family to Britain. The cost of living was low. In Britain, Frost found a publisher for his first book of poems. The book was called A Boy’s Will. When it appeared in 1913. Frost received high praise from British readers. Praise was something he had not received in his own country.
Ezra Pound, another American poet living in Britain, read the poems and liked them very much. He wrote a magazine article about Frost. He also helped get Frost’s second book of poems published in America. That book was called North of Boston.
【小題1】The followings are writers EXCEPT ________.

A．Robert Edward LeeB．Robert Lee Frost
C．Ernest Hemingway D．Ezra Pound
【小題2】The passage wrote about Hemingway in order to show that
A．he had great influence on Frost’s poetry and life
B．Frost’ s poetry style was the same as Hemingway’s
C．Frost was unhappy because he was the victim of his father
D．Frost spent his childhood unhappily
【小題3】What can we learn from the passage?
A．Once Frost’s first book was published he gained great praise in his country.
B．After leaving Harvard University, he began to learn to write poetry.
C．Frost was found lo have a gift in poetry while he studied in high school.
D．Robert Frost’s father was angry and drank a lot because he didn’t realize his dream.
【小題4】What’s the passage mainly about?
A．Robert Frost’s unhappy childhood.B．Robert Frost’s first and second book.
C．Robert Frost’s family and jobs.D．Robert Frost’s life and poetry.

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科目：高中英語 來源：2012-2013學(xué)年陜西省寶雞中學(xué)高二第一次月考英語試卷（帶解析） 題型：閱讀理解

Laptop computers are popular all over the world. People use them on trains and airplanes, in airports and hotels. These laptops connect people to their workplace. In the United States today, laptops also connect students to their classrooms.
Westlake College in Virginia will start a laptop computer program that allow students to do schoolwork anywhere they want. Within five years, each of the 1500 students at the college will receive a laptop. The laptops are part of a ＄10 million computer program at Westlake, a  110-year-old college. The students with laptops will also have access to the Internet. In addition, they will be able to use e-mail to “speak” with their teachers, their classmates, and their families. However, the most important part of the laptop program is that students will be able to use computers without going to computer labs. They can work with it at home, in a fast-food restaurant or under the trees-anywhere at all!
Because of the many changes in computer technology, laptop use in higher education, such as colleges and universities, is workable. As laptops become more powerful, they become more similar to desktop computers. In addition, the portable computers can connect students to not only the Internet, but also libraries and other resources. State higher-education officials are studying how laptops can help students. State officials are also testing laptop programs at other universities, too.
At Westlake College, more than 60 percent of the staff use computers. The laptops will allow all teachers to use computers in their lessons. As one Westlake teacher said, “Here we are in the middle of Virginia and we’re giving students a window on the world. They can see everything and do everything.”
【小題1】The main purpose of the laptop program is to give each student a laptop to ________.

A．use for their schoolworkB．a(chǎn)ccess the Internet
C．work at homeD．connect them to libraries
【小題2】Why is the word “speak” in the second paragraph in quotation marks(引號)?
A．They don’t really talk.B．They use the computer language.
C．Laptops have speakers.D．None of the above reasons is correct.
【小題3】Which of the following is true about Westlake College?
A．All teachers use computers.B．1500 students have laptops.
C．It is an old college in America.D．Students there can do everything.
【小題4】‘A window on the world ’ in the last paragraph means that students can           .
A．a(chǎn)ttend lectures on information technology
B．travel around the world
C．get information from around the world
D．have free laptops
【小題5】What can we infer from the passage?
A．The program is successful.B．The program is not workable.
C．The program is too expensive.D．We don’t know the result yet

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科目：高中英語 來源：2012-2013學(xué)年江蘇省海安縣實(shí)驗(yàn)中學(xué)高二上學(xué)期期中考試英語試卷（帶解析） 題型：閱讀理解

Common sense would tell us that physically active children may be more likely to become active and healthy adults.
In the United States, elementary and middle schools are advised to give students two and a half hours of physical activity a week. That is what the Centers for Disease Control and Prevention and the American Heart Association recommend. They say high schools should provide about four hours of physical activity each week.
Yet many schools across the country have reduced their physical education programs. Just this week, a study reported that life expectancy has fallen or is no longer increasing in some parts of the United States. The situation is worst among poor people in the southern states, and especially women. Public health researchers say it is largely the result of increases in fatness, smoking and high blood pressure. They also blame differences in health services around the country.
In 2006, a study found that only four percent of primary schools provided daily physical education all year for all grades. This was true of eight percent of middle schools and two percent of high schools. The study also found that twenty-two percent of all schools did not require students to take any P.E.
Charlene Burgeson , a health expert says one problem for P.E. teachers is that schools are under pressure to put more time into academic subjects. Also, parents may agree that children need exercise in school. Yet many parents today still have bad memories of being chosen last for teams because teachers favored the good athletes in class.
But experts say P.E. classes have changed. They say the goal has moved away from competition and toward personal performance, as a way to build a lifetime of activity. These days, teachers often lead activities like weight training and yoga.
Some parents like the idea of avoiding competitive sports in P.E. class. Yet others surely dislike that idea. In the end, schools may find themselves in a no-win situation.
【小題1】 The underlined word “expectancy” in Paragraph 3 probably means “       ”                            

A．qualityB．lengthC．exceptionD．depth
【小題2】According to the passage which of the following may not lead to poor health?
A．Fatness.B．Smoking
C．High blood pressure.D．Health service
【小題3】 What can be inferred after you read this passage?
A．Physical activities are becoming more and more popular in American schools.
B．All the schools provided daily physical education all year for all students.
C．Parents think children need physical education for their bad memories.
D．Students spent less time on physical education for academic pressure.
【小題4】 What is the main idea about this passage?
A．P.E. is the most important subject for all students.
B．P.E has changed its goal for some reasons in America.
C．It introduces us the present situation of P.E in American schools and its cause.
D．P.E can help students improve their academic subjects.

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科目：高中英語 來源：2011-2012學(xué)年福建省清流一中高二12月月考英語試卷（帶解析） 題型：閱讀理解

You may know the English letters A, B and C. But do you know there are people called ABC? You may like eating bananas. But did you know there is a “banana person”? How strange! Are these people from “another Earth”? No. They are just Chinese people like you and me.
ABC means American-Born Chinese. An ABC is a Chinese, but was born in the United States. Sometimes, people call an ABC a “banana person”. A banana is yellow outside and white inside. So, when a person is a banana, he or she is white inside—thinking like a Westerner and yellow outside—looking like a Chinese.
Do you know why? Usually, ABCs know little about China or the Chinese language. Some of them don’t speak Chinese.
But if ABCs cannot speak Chinese, can we still call them Chinese people? Yes, of course. They are Chinese. They are overseas  Chinese. These people may be citizens of another country like the US, Canada or Singapore. But they have Chinese blood. Their parents, grandparents or even great-grandparents were from China. They all have black eyes and black hair.
But they are not Chinese citizens. They are not the people of the People’s Republic of China. For example, we all know the famous scientist  C.N. Yang(楊振寧). He got the Nobel Prize for Physics in 1957. The Chinese love him, but he is an American citizen.
【小題1】What’s the author’s purpose in writing this passage?

A．He wants to tell us something about “ABC”.
B．He wants to show that Chinese are well respected in America.
C．He wants to tell us some knowledge about the English language.
D．He wants to introduce the American culture to us.
【小題2】Chinese in Western countries are called “banana persons” because ____.
A．their bodies are white inside but yellow outside
B．they think like Westerners but look like Chinese
C．they were born in China but go to study in America
D．they like to eat bananas
【小題3】C.N. Yang is mentioned here to show that ____.
A. American Chinese are great      
B. we love American Chinese
C. The Chinese can win Nobel Prizes
D. American Chinese are not Chinese citizens
【小題4】Which is NOT true?
A. ABCs are Chinese people.
B. ABCs are all “banana persons”.
C. If you go to America or another country one day, you’ll really become an ABC.
D. ABCs know our country very little.
【小題5】What does the underlined word in the passage mean?
A．People who born and live or work in other countries.
B．People who love other countries.
C．People who know other countries very much.
D．People who can speak other countries’languages.

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科目：高中英語 來源：2011年黑龍江省大慶鐵人中學(xué)高二下學(xué)期期末考試英語卷 題型：填空題


【小題1】A clone is an organism which is genetically i__________(同一的) to another one.
【小題2】 During the war, Germany o________(占領(lǐng)) many countries.
【小題3】 At one point, military commanders thought about a__________(放棄) the operation.
【小題4】 When he first arrived in the U.S, Yao was an i_________ hit among basketball fans nationwide.
【小題5】 In America, the development of social skills is c____________(認(rèn)為) as important as the development of intellectual skills.
【小題6】 Would you please say something about the h__________(精彩生活) of your senior year?
【小題7】 The chair was i________ (打算) for you, but she took it away.
【小題8】All the people in the world are looking forward to building a better society in h________(和諧) with nature.
【小題9】I thought she had retire, but a__________(顯然) she hasn’t.
【小題10】She was strongly r______________(推薦) for the post.

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