April 11, 2003 12:44 a. m. PST, Associated Press
The respiratory(呼吸系统) virus known as SARS has appeared to spread in the United States only to family members of health workers with close contact to a sick person.
On Thursday, the head of the Centers for Disease Control and Prevention said there might be a case of severe acute respiratory syndrome（综合症） spreading through the workplace.
Dr. Julie Gerberding said a suspected SARS virus patient who became ill after traveling to Asia might have infected a co-worker in Florida, which made her “very worried”.
So far, a dozen people—nine family members and three health workers—were infected after coming into close contact with the person with SARS. The rest of the 166 suspected American cases have something to do with people who were infected while traveling in Asia.
In the Gainesville, Fla. area, a 47-year-old woman was believed to have been infected at work by a 60-year-old woman who was the nation’s first suspected SARS case, said Tom Belcuore, director of the Alachua County health department.
Since the World Health Organization announced a worldwide warning last month about SARS, the United States has started infection control in hospitals and among families of suspected cases.
Florida officials said a school in Okaloosa County went through a cleaning after a 6-year-old boy suspected of having SARS appeared at school with slight symptoms. “Health officials are watching the boys’ contacts at school to make sure no one else is infected,” said Rob Hayes, health department spokesman, “The boy may have been infected from a family member,” Hayes said, “We immediately became aware of it and had the child sent home. He’s staying at home with his family until 10 days after symptoms disappear.”
The researchers guessed that the virus might have come from animals. However, the scientists have not ruled out the possibility that some other microbe might also help make SARS more serious or easier to catch

1. 1.

   The best title for this text is _______

   1. A.
      A Worldwide Warning
   2. B.
      Suspected SARS Cases
   3. C.
      What Is SARS
   4. D.
      Possible Spread of SARS in the USA
2. 2.

   The writer wrote this text mainly to _______

   1. A.
      discuss the danger of SARS
   2. B.
      report research result about SARS
   3. C.
      inform people of the spread of SARS
   4. D.
      explain to the readers what SARS is
3. 3.

   How many cases of suspected SARS are there in the U.S

   1. A.
      according to the text?
      A. 166
   2. B.
      178
   3. C.
      12
   4. D.
      181

Members of an elephant family may be out of sight but they are always in the minds of the herd’s matriarchs (象群的女家长), researchers have found.

Tests have found that female elephants are able to remember the whereabouts of at least 17 family members simultaneously and perhaps as many as 30. They watch which of their relations are ahead of them when the herd searches for food, which of them are lagging behind and which are traveling in separate groups.

Professor Richard Byrne, of the University of St Andrews, said that the elephants performed a good memory by being able to recall where each of their relatives was in a changing environment. “It’s hard enough for us to watch two or three children in a busy shopping centre. Imagine trying to do it with 30 or so,” he said.

Researchers tested the ability of African elephants to remember where each family member had got to. Elephants have poor eyesight but an excellent sense of smell and are able to identify (鉴别) one another from traces of urine (尿) on the ground.

To test the memories of the elephants, samples of urine-soaked earth were collected by researchers and placed in positions where a herd was about to pass. Observations showed that the animals exhibited surprise when they could detect the odor of a family member they knew was behind them. Interest was shown when the urine was that of a close relative traveling in the same group or in a separate herd, but samples left by unknown individuals were ignored.

The researchers, who reported their findings in the journal Biology Letters, concluded: “ It seems that female elephants have a general interest in monitoring family members with whom they are traveling. Elephants’ order of traveling often changes and overtaking is common, suggesting that elephants must frequently update their expectation of where others are in relation to themselves.”

73. According to the passage, female elephants       .

       A. are usually stronger than male elephants

       B. usually stay at home while male elephants search for food

       C. can remember where their family members are while traveling

       D. can recognize the odor of human beings

74. The third paragraph is developed by       .

       A. space                   B. frequency             C. time                     D. comparison

75. Elephants identify their family members mainly by using their       .

       A. eyes                     B. nose                     C. ears                      D. mouth

76. What’s the researchers’ conclusion about their findings?

       A. Male elephants have no interest in other family members.

       B. An elephant never goes to search for food alone.

       C. Elephants don’t stay in the same order while traveling in groups.

       D. Elephants’ abilities to survive are beyond our expectations.

The man was hit       the head       a stone while traveling in the mountain.

A．on: with          B．in; by             C．ON; by            D．in; with

While traveling in Sichuan, you can’t miss ______ people call “The National

Treasure” ―Giant Panda.

       A．that            B．it            C．what             D．which

While traveling in Sichuan，you can’t miss________people call “The National Treasure”—Giant Panda.  

 A．that    B．it     C．what    D．which