57.How 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.

　　58.What does the author think of the new immigrants?

　　A)They will be a dynamic work force in the U.S.

　　B)They can do just as well as their predecessors.

　　C)They will be very disappointed on the new land.

　　D)They may find it hard to fit into the mainstream.

　　59.What does Edward Telles’ research say about Mexican-Americans?

　　A)They may slowlu improve from generation to generation.

　　B)They will do better in terms of deucationl attainment.

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

　　D)They may forever remain poor and underachieving.

　　60.What 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 marginalized.

　　D)Teach them standard American English.

　　61.According to the author,the burning issue concerning immigrationg 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 corder

　　D)how to limit the number of immigrants to enter the U.S.

　　Part V

　　Individuals and businesses have legal protection for intellectual property they create and own . intellectual proper _62_from creative thinking and may include products, 63 processes, and ideas. Intellectual property is protected 64 misapproprition(盜用)Misappropriation is taking the Intellectual propetty of others withour ____65____ compensation and using it for monetary gain.

　　Legal protection is provided for the ___66___of intellectual propetty. The three common types of legal protection are patents, copyrights, and trademarks.

　　Patents provide exclusive use of inventions. If the u.s patent office __67__ a patent, it is confirmind that the intellectual property is ___68____. The patent prevents others from making ,using, or selling the invention without the owner’s __69___ for a period of 20 years.

　　Copyright are similar to patents __70___that they are applied to artistic works. A copyright protects the creator of an __72___artisitic or intellectual work, such as a song or a novel. A copyright gives the owner wxclusive rights to copy, __72___ display, or perform the work . the copyright prevents others from using and selling the work , the __73___ of a copyright is typically the lifetime of the author

　　62retrieves
　　deviates
　　results
　　departs

　　63services
　　reservers
　　assumptions
　　motions