The major problems with America’s railroad system in the mid 19th century lay in ________.

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• 1Some people feel that ________.

  A.artificial hearts are seldom effective

  B.the country should not spend so much money on artificial hearts

  C.the country is not spending enough money on artificial hearts

  D.America’s health-care programs are not doing enough for the nation’s health

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• 2The word “them” in Line 7, Par

  A.2 refers to ________.A.doctors who treat heart diseases

  B.makers of artificial hearts

  C.America’s health-care programs

  D.new models of artificial hearts

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• 3The new models of artificial hearts are expected ________.

  A.to have a working life of 10 or 20 years

  B.to be set fully in the patient’s chest

  C.to be equipped with an external power source

  D.to create a new passage for infection

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• 4From the passage we know that Symbion Inc ________.

  A.has been banned by the government from producing artificial hearts

  B.will review the effects of artificial hearts before designing new models

  C.may continue to work on new models of reliable artificial hearts

  D.can make new models of artificial hearts available on the market in 10 to 20 years

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• 5According to the passage the Jarvik-7 artificial heart proved to be ________.

  A.a technical failure

  B.a technical wonder

  C.a good life-saver

  D.an effective means to treat heart disease

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• 6The building of the first transcontinental system ________.

  A.brought about a rapid growth of industry and farming in the west

  B.attracted many visitors to the construction sites

  C.attracted laborers from Europe

  D.encouraged people to travel all over the county

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• 7The best title for this passage would be ________.

  A.Settlements Spread Westward

  B.The Coast-to-Coast Railroad: A Vital Link

  C.American Railroad History

  D.The Importance of Trains in the American Economy

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• 8The construction of the transcontinental railroad took ________.

  A.9 years

  B.7 years

  C.4 years

  D.3 years

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• 9What most likely made people think’ about a transcontinental railroad、

  A.The possibility of government support for such a task.

  B.The need to explore Utah.

  C.The need to connect the east coast with the west.

  D.The need to del, clop the railroad industry in the west.

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• 10We had a party last month, and it was a lot of fun, so let’s have ________ one this month.

  A.another

  B.more

  C.the other

  D.other

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