What does the author think of the new immigrants、

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• 1How were immigrants viewed by U.S. Congress in early days、

  A.They were of inferior races.

  B.They were a Source of political corruption.

  C.They were a threat to the nation’s security.

  D.They were part of the nation’s bloodstream.

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• 2What is the author’s purpose in writing this passage、

  A.To remind people of the need of sustainable development

  B.To suggest ways of ensuring sustainable food production

  C.To advance new criteria for measuring farming progress

  D.To urge people to rethink what sustainable agriculture is

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• 3What will agriculture be like in the 21st century

  A.It will go through radical changes

  B.It will supply more animal products

  C.It will abandon traditional farming practices

  D.It will cause zero damage to the environment

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• 4What does the author think of traditional farming practices、

  A.They have remained the same over the centuries

  B.They have not kept pace with population growth

  C.They are not necessarily sustainable

  D.They are environmentally friendly

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• 5Specialisation and the effort to increase yields have resulted in________.

  A.Localised pollution

  B.the shrinking of farmland

  C.competition from overseas

  D.the decrease of biodiversity

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• 6What does Edward Telles’ research say about Mexican-Americans、

  A.They may slowly improve from generation to generation.

  B.They will do better in terms of educational attainment.

  C.They will melt into the African-American community.

  D.They may forever remain poor and underachieving.

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• 7What should be done to help the new immigrants、

  A.Rid them of their inferiority complex.

  B.Urge them to adopt American customs.

  C.Prevent them from being marginalize

  D.D.Teach them standard American English.

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• 8According to the author, the burning issue concerning immigration is_______.

  A.How to deal with people entering the U.S. without documents

  B.How to help immigrants to better fit into American society

  C.How to stop illegal immigrants from crossing the border

  D.How to limit the number of immigrants to enter the U.S.

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