Section BDirections:    In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on the Answer Sheet with a single line through the centre.                                     Passage OneQuestions 11 to 13 are based on the passage you have just heard.

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• 1                                    Passage TwoQuestions 14 to 16 are based on the passage you have just heard.

  A.It limited their supply of food.

  B.It made their eggshells too fragile.

  C.It destroyed many of their nests.

  D.B.It made their eggshells too fragil

  E.C.It destroyed many of their nests.D.It killed many baby bald eagles.

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• 2                                   Passage ThreeQuestions 17 to 20 are based on the passage you have just heard.

  A.Whether it can be detected and checked.

  B.Whether it will lead to widespread food shortage.

  C.Whether global warming will speed up in the future.

  D.B.Whether it will lead to widespread food shortag

  E.C.Whether global warming will speed up in the future.D.Whether it will affect their own lives.

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• 3By saying “... owners of well over half of all World Wide Web sites have set up home without fitting locks to their doors” (Lines 3-4, Par

  A.2), the author means that ________.A.those happy times appear still to be with us

  B.there simply wasn’t any crime to worry about

  C.many sites are not well-protected

  D.hackers try out tricks on an Internet site without actually breaking in

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• 4SATAN, a program designed by Dan Fanner can be used ________.

  A.to investigate the security of Internet sites

  B.to improve the security of the Internet system

  C.to prevent hackers from breaking into websites

  D.to download useful programs and information

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• 5Fanner’s program has been criticized by the public because.

  A.it causes damage to Net browsers

  B.it can break into Internet sites

  C.it can be used to cause disorder on all sites

  D.it can be used by people with evil intent

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