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It happened one morning 20 years ago．A British scientist Alec Jeffrey came across DNA fingerprinting: He identified the patterns of genetic material that are unique to almost every individual．His discovery changed everything from the way we do criminal investigations to the way we decide family law．But the professor of genetics at the University of Leicester, UK, is still surprised, and a bit worried, by the power of the technology he released upon the world．
The patterns within DNA are unique to each individual, except identical twins, who share the same pattern．The ability to identify these patterns has been used to convict（证明…有罪） murderers and to clear people who are wrongly accused．It is also used to identify the victims of war and settle disputes over who is the father of a child．
Jeffrey said he and his colleagues made the discovery by accident while tracking genetic variations（变异）．But, within six months of the discovery, genetic fingerprinting had been used in an immigration case, to prove that an African boy really was his parents’ son．·In 1986, it was used for the first time in a British criminal case: It cleared one suspect after being accused of two murders and helped convict another man．
DNA testing is now very common．In Britain, a national criminal database established in 1995 now contains 2．5 million DNA samples．The U．S．and Canada are developing similar systems． But there are fears about the stored DNA samples and how they could be used to harm a person’s privacy．That includes a person’s medical history, racial origin or psychological profile．“There is the long-term risk that people can get into these samples and start getting additional information about a person’s paternity（父子关系）or risk of disease,” Jeffrey said．
DNA testing is not an unfailing proof of identity．Still, it is considered a reasonably reliable system for determining the things it is used for．Jeffrey estimates the probability of two individuals’ DNA profiles matching in the most commonly used tests at one in a billion．
1．According to the text, DNA testing can NOT be used in _______ ．
A．doing criminal investigations B．deciding family law
C．clearing wrongly accused people D．telling twins apart
2．DNA samples are not popular with all the people because _______ ．
A．the government in Britain establishes a criminal database
B．the US and Canada develop similar systems
C．DNA samples can be used to harm a person’s privacy
D．DNA testing is too expensive and dangerous now
3．Where will you most probably find this article?
A．In a guidebook． B．In a storybook．
C．In a science fiction． D．In a scientific magazine．
4．Which is the best title for the passage?
A．Discovery of DNA testing by Jeffery B．Practice of DNA testing in court
C．DNA testing in the present situation D．Benefits and side effects of DNA testing
查看习题详情和答案>>Thursday.
The Academy cited Le Clezio as "author of new departures and poetic adventure, explorer of humanity
beyond civilization."
Le Clezio, 48, received much attention with his first novel The Interrogation in 1963 and made the
breakthrough as a novelist with Desert in 1980, for which he was rewarded a prize from the French
Academy.
This novel Dserte contains magnificent images of a lost culture in the North African desert, contrast
with a description of Europe seen through the eyes of unwanted immigrants, the Swedish Academy said
in the statement.
The emphasis in Le Clezio's work has increasingly moved in the direction of an exploration of the
world of childhood and of his own family history, the academy added.
Le Clezio was born 1940 in Nice of France, but both parents had strong family connections with the
former French colony Mauritius. At the age of eight, he moved to Nigeria with his family. During the
month-long voyage to Nigeria, he began his literary career with two books Un long voyage and Oradi noir.
He has taught at universities in Bangkok, Mexico City, Boston, Austin and Albuquerque among other
places. Since the 1990s, Le Clezio and his wife share their time between Albuquerque in New Mexico, the
island of Mauritius and Nice.
This was the fourth of the prestigious Nobel Prizes handed out this year, with awards in chemistry,
physics and medicine made in the past three days.
The Nobel Prizes have been awarded annually since 1901 to those who "conferred (给予) the greatest
benefit on mankind during the preceding year."
The annual Nobel Prizes are usually announced in October and are handed out on Dec. 10, the anniversary
of the 1896 death of Alfred Nobel, a Swedish industrialist and the inventor of dynamite.
Each prize consists of a medal, a personal diploma and a cash award of 10 million Swedish kronor (1.4
million U.S. dollars).
B. Desert
C. Un Long voyage
D. Oradi noir
B. encouraged
C. referred
D. thought
B. Le Clezio got a personal diploma, a medal in all for the Nobel Prize.
C. The Nobel Prizes are awarded yearly in October.
D. Le Clezio moved to Nigeria in 1948.
B. Four Nobel Prizes have been handed out this year.
C. The Nobel Prizes have been awarded annually.
D. Life of a French writer-Le Clezio.
B. In a history book.
C. In a newspaper.
D. In a travel leaflet
It happened one morning 20 years ago. A British scientist Alec Jeffrey came across DNA fingerprinting: He identified the patte
rns of genetic material that are unique to almost every individual. His discovery changed everything from the way we do criminal investigations to the way we decide family law. But the professor of genetics at the University of Leicester, UK, is still surprised, and a bit worried, by the power of the technology he released upon the world.
The patterns within DNA are unique to each individual, except identical twins, who share the same pattern. The ability to identify these patterns has been used to convict(证明…有罪) murderers and to clear people who are wrongly accused. It is also used to identify the vi
ctims of war and settle disputes over who is the father of a child.
Jeffrey said he and his colleagues made the discovery by accident while tracking genetic variations(变异). But, within six months of the discovery, genetic fingerprinting had been used in an immigration case, to prove that an African boy really was his parents’ son.·In 1986, it was used for the first time in a British
criminal case: It cleared one suspect after being accused of two murders and helped convict another man.
DNA testing is now very common. In Britain, a national criminal database established in 1995 now contains 2.5 million DNA samples. The U.S. and Canada are developing similar systems. But there are fears about the stored DNA samples and how they could be used to harm a person’s privacy. That includes a person’s medical history, racial origin or psychological profile. “There is the long-term risk that people can get into these samples and start getting additional information about a person’s paternity(父子关系) or risk of disease,” Jeffrey said.
DNA testing is not an unfailing proof of identity. Still, it is considered a reasonably reliable system for determining the things it is used for. Jeffrey estimates the probability of two individuals’ DNA profiles matching in the most commonly used tests at one in a billion.
【小题1】According to the text, DNA testing can NOT be used in _______ .
| A．doing criminal investigations | B．deciding faraily law |
| C．clearmg wrongly accused people | D．telling twins apart |
| A．the government in Britain establishes a criminal database |
| B．the US and Canada develop similar systems |
| C．DNA samples can be used to harm a person’s privacy |
| D．DNA testing is too expensive and dangerous now |
| A．In a guidebook. | B．In a storybook. |
| C．In a science fiction. | D．In a scientific magazine. |
| A．Discovery of DNA testing by Jeffery | B．Practice of DNA testing in court |
| C．DNA testing in the present situation | D．Benefits and side effects of DNA testing |
It happened one morning 20 years ago. A British scientist Alec Jeffrey came across DNA fingerprinting: He identified the patterns of genetic material that are unique to almost every individual. His discovery changed everything from the way we do criminal investigations to the way we decide family law. But the professor of genetics at the University of Leicester, UK, is still surprised, and a bit worried, by the power of the technology he released upon the world.
The patterns within DNA are unique to each individual, except identical twins, who share the same pattern. The ability to identify these patterns has been used to convict(证明…有罪) murderers and to clear people who are wrongly accused. It is also used to identify the victims of war and settle disputes over who is the father of a child.
Jeffrey said he and his colleagues made the discovery by accident while tracking genetic variations(变异). But, within six months of the discovery, genetic fingerprinting had been used in an immigration case, to prove that an African boy really was his parents’ son.·In 1986, it was used for the first time in a British criminal case: It cleared one suspect after being accused of two murders and helped convict another man.
DNA testing is now very common. In Britain, a national criminal database established in 1995 now contains 2.5 million DNA samples. The U.S. and Canada are developing similar systems. But there are fears about the stored DNA samples and how they could be used to harm a person’s privacy. That includes a person’s medical history, racial origin or psychological profile. “There is the long-term risk that people can get into these samples and start getting additional information about a person’s paternity(父子关系) or risk of disease,” Jeffrey said.
DNA testing is not an unfailing proof of identity. Still, it is considered a reasonably reliable system for determining the things it is used for. Jeffrey estimates the probability of two individuals’ DNA profiles matching in the most commonly used tests at one in a billion.
1.According to the text, DNA testing can NOT be used in _______ .
A. doing criminal investigations B. deciding faraily law
C. clearmg wrongly accused people D. telling twins apart
2.DNA samples are not popular with all the people because _______ .
A. the government in Britain establishes a criminal database
B. the US and Canada develop similar systems
C. DNA samples can be used to harm a person’s privacy
D. DNA testing is too expensive and dangerous now
3.Where will you most probably find this article?
A. In a guidebook. B. In a storybook.
C. In a science fiction. D. In a scientific magazine.
4.Which is the best title for the passage?
A. Discovery of DNA testing by Jeffery B. Practice of DNA testing in court
C. DNA testing in the present situation D.Benefits and side effects of DNA testing
查看习题详情和答案>>
It happened one morning 20 years ago. A British scientist Alec Jeffrey came across DNA fingerprinting: He identified the patterns of genetic material that are unique to almost every individual. His discovery changed everything from the way we do criminal investigations to the way we decide family law. But the professor of genetics at the University of Leicester, UK, is still surprised, and a bit worried, by the power of the technology he released upon the world.
The patterns within DNA are unique to each individual, except identical twins, who share the same pattern. The ability to identify these patterns has been used to convict(证明…有罪) murderers and to clear people who are wrongly accused. It is also used to identify the victims of war and settle disputes over who is the father of a child.
Jeffrey said he and his colleagues made the discovery by accident while tracking genetic
variations(变异). But, within six months of the discovery, genetic fingerprinting had been used in an immigration case, to prove that an African boy really was his parents’ son.·In 1986, it was used for the first time in a British criminal case: It cleared one suspect after being accused of two murders and helped convict another man.
DNA testing is now very common. In Britain, a national criminal database established in 1995 now contains 2.5 million DNA samples. The U.S. and Canada are developing similar systems. But there are fears about the stored DNA samples and how they could be used to harm a person’s privacy. That includes a person’s medical history, racial origin or psychological profile. “There is the long-term risk that people can get into these samples and start getting additional information about a person’s paternity(父子关系) or risk of disease,” Jeffrey said.
DNA testing is not an unfailing proof of identity. Still, it is considered a reasonably reliable system for determining the things it is used for. Jeffrey estimates the probability of two individuals’ DNA profiles matching in the most commonly used tests at one in a billion.
62. According to the text, DNA testing can NOT be used in _______ .
A. doing criminal investigations B. deciding faraily law
C. clearmg wrongly accused people D. telling twins apart
63. DNA samples are not popular with all the people because _______ .
A. the government in Britain establishes a criminal database
B. the US and Canada develop similar systems
C. DNA samples can be used to harm a person’s privacy
D. DNA testing is too expensive and dangerous now
64. Where will you most probably find this article?
A. In a guidebook. B. In a storybook.
C. In a science fiction. D. In a scientific magazine.
65. Which is the best title for the passage?
A. Discovery of DNA testing by Jeffery B. Practice of DNA testing in court
C. DNA testing in the present situation D.Benefits and side effects of DNA testing
查看习题详情和答案>>