Which of the following statements is meant by the writer、

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• 1James R. Ehleringer tried to find out

  A.if our bodies break water down into its parts.

  B.if it is possible to collect hair samples across the country.

  C.if tap water contains unique proportions of isotopes of hydrogen and oxygen.

  D.if the composition of hair can indicate exactly where people are from.

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• 2What does the writer say about tap water、 Which of the following is NOT correct、

  A.Tap water reflects the concentrations of hydrogen and oxygen isotopes in different regions.

  B.Tap water is a kind of soft drink in the United States.

  C.Tap water contains unique proportions of isotopes of hydrogen and oxygen.

  D.Tap water is used to cook food.

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• 3Which of the following statements is true、

  A.Americans do not like to make generalizations about themselves on the basis of regional differences.

  B.Americans have fixed ideas about different people coming from different regions and areas within their own country.

  C.Americans think that they are equal to one another no matter where they were born.

  D.Americans are trying hard to iron out their regional differences

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• 4Americans are disturbed by generalizations others make about them because

  A.different Americans have different sources of origin.

  B.not all Americans were born and raised in the U. S.

  C.American culture has not been thoroughly studie

  D.D.they, as individuals, do not have the same ideas and ways of doing things.

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• 5Individual Americans may think that their values

  A.are based on their personal choices.

  B.are forced on them by the society in which they were born.

  C.can also be found in other cultures.

  D.should be recognized the world over.

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• 6What does the last paragraph tell you、

  A.The new technique can tell precisely where a person lives.

  B.Water supplied in different regions all come from the same source.

  C.Types of water used in different regions provide useful information for the police.

  D.Hair samples provide the most important clues to identify crimes.

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• 7Which of the following is closest in meaning to the title、

  A.Human hair may help detectives to solve crimes.

  B.Animal hair may help detectives to solve crimes.

  C.Detectives watch hairy criminals closely.

  D.Most detectives are hair specialists.

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• 8what have the Ford motor company, General Motor’s and Honda done concerning electric cars、

  A.They have started to produce electric cars.

  B.They have done extensive research on electric cars.

  C.They have given up producing electric cars.

  D.They have produced thousands of electric cars.

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• 9According to Tim Holmes of Ford Europe, battery-powered cars

  A.Will be the main transportation vehicles in the future.

  B.Will not be the main transportation vehicles in the future.

  C.Will be good to the environment in the future.

  D.Will replace petrol-powered vehicles in the futur

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• 10Which auto manufactures are still producing electric vehicles、

  A.Toyota and Nissan.

  B.General Motor’s and Honda.

  C.Ford and Toyota.

  D.Honda and Toyota.

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