C

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(證明…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(變異). 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(父子關(guān)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

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（2）提綱表格式

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（2010·山東省臨港一中高三上學(xué)期10月月考）

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III. 完形填空(共20小題;每小題分，滿分20分)

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                   Catch of a Lifetime

He was 11 years old and often went fishing in a lake. On the day   36   the bass (鱸魚) season opened, he and his father were fishing early in the evening,   37   sunfish. Then he practiced casting. When his pole   38  , he knew something huge was   39  . His father watched   40   as the boy skilfully worked the fish alongside the dock.   41  , he very carefully lifted the   42   fish from the water. It was the largest one he had ever seen,    43    it was a bass. The father lit a match and looked at   44  . It was 10 P.M. — two hours before the season opened. He looked at the fish, then at the boy.

“You’ll have to   45  , son,” he said.

“Dad!” cried the boy.

“There will be other fish,” said his father.

“Not as big as this one,” cried the boy.

  46   no one had seen them, nor could anyone ever know what time he caught the fish, the boy could   47   by his father’s firm voice that the decision was   48  . He obeyed and lowered it into the black   49  . The boy suspected that he would   50   again see such a great fish.

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36. A. until     B. when C. after   D. before

37. A. providing    B. catching    C. feeding      D. supplying

38. A. broke down       B. broke up    C. turned over       D. doubled over

39. A. on the other end       B. in the dark     

C. in the deep water      D. on the other bank

40. A. with anxiety       B. in surprise 

C. with admiration        D. with anger

41. A. Finally B. Unfortunately    C. Actually     D. Accordingly

42. A. active B. discouraged       C. energetic   D. exhausted

43. A. and      B. but     C. however    D. yet

44. A. his watch    B. the bass      C. the sunfish  D. the boy

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46. A. Even though      B. Now that         C. Ever since        D. In case

47. A. say       B. tell     C. speak  D. talk

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49. A. container     B. sea      C. water  D. river

50. A. ever     B. once   C. then    D. never

51. A. wrong  B. right C. satisfactory       D. pleased

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55. A. wrong B. right C. harm D. Good

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D

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