2. 外语
  3. Read the following text and decide which answer best fits each space. For questions 26-45, mark one letter A, B, C or D on y

Read the following text and decide which answer best fits each space. For questions 26-45, mark one letter A, B, C or D on y

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问题     Read the following text and decide which answer best fits each space.
    For questions 26-45, mark one letter A, B, C or D on your Answer Sheet.
    Museum Science
    When deadly virus outbreaks occur, scientists want to know where the disease is coming from and how to stop it. In their search for【C1】______, some will pay a visit to their local museum. They are not trying to take their minds off the outbreak.【C2】______. they come to sift through the museum’s historic collections, looking for【C3】______that might help them save lives.
    For instance, in the 1990s, there was an【C4】______of hantavirus in New Mexico and nearby states. The sometimes-deadly disease【C5】______flulike symptoms and difficulty breathing. At the time, no one knew the【C6】______of the outbreak. Some people even suspected terrorists might have【C7】______the germs as a biological weapon.
    But Robert Baker and his coworkers wondered if a rodent might be to【C8】______This biologist is a director at the Natural Science Research Laboratory at the Museum of Texas Tech University in Lubbock. Baker knew mice and rats can【C9】______viruses to humans. So he turned to the lab’s stores of dried and frozen tissues for help. Those【C10】______included some collected decades earlier from New Mexico rodents.
    His team analyzed deer-mouse lung samples that had been【C11】______in a freezer since the 1980s. Some indeed【C12】______hantavirus. This showed the germ existed in New Mexico long【C13】______the state’s human outbreak developed. The finding suggested biological weaponry was not outbreak’s source. Most【C14】______. it pointed to how people could limit infection with the【C15】______virus: Keep deer-mice out of their garages and homes.
    Robert Bradley now works【C16】______the museum’s curator of mammals. He says the episode taught him an important【C17】______Collections like the one he manages let scientists travel back in【C18】______to answer important questions. "One hundred years from now,【C19】______knows the questions that will be asked?" But, he notes, if samples from the past are【C20】______, they can help future scientists answer their questions.
【C20】
选项 A、valuable
B、available
C、old
D、expensive
答案B
解析 “available”的意思是“现实可用的”。当科学家提出问题的时候，如果过去被储存下来的样本在手边是现实可用的，那么它们将帮助科学家回答问题。
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