单选题
U.S. health officials are increasing surveillance measures
at doctors' offices and international borders to guard against the spread of
swine flu. Washington also has begun dispersing medicine from a federal
stockpile. The Centers for Disease Control and Prevention says
there have been only mild cases of swine flu in the United States, but experts
remain on guard. Acting agency director, Richard Besser, says
the epidemic in Mexico prompted U.S. doctors to begin monitoring actively for
possible infections. "We are asking doctors when they see
someone who has flu-like illness who has traveled to an affected region, to do a
culture, take a swab in the nose and send it to the lab so we can see: is it
influenza, is it this type?" he said. Speaking Sunday at the
White House, Besser said the extra detection efforts have enabled officials to
find more infections than under normal circumstances. He also says he expects
the number of infections will rise and the illness will spread to other U.S.
regions, as doctors continue to monitor the problem. The
Centers for Disease Control and Prevention says it does not recommend people
travel to Mexico, where the outbreak of swine flu is centered and more than 100
deaths have been reported. But officials have not ordered a travel ban to the
country. Homeland Security Secretary Janet Napolitano says,
instead, airlines have the option of screening passengers on flights from
Mexico. "We are letting air carriers and our employees at the
gates on those flights make sure that they are asking people if they are sick;
and if they are sick, that they should not board the plane," she said.
Denise Korniewicz, an infectious disease expert at the University of
Miami, says officials should take bolder steps to screen passengers at
international borders, as Japan and other Asian nations are doing.
"We have a very transient population here. And Japan has taken a lot of
precautions. What Japan is doing is they are making everyone take a temperature
when they get off the airplane," she said. "As far as I am concerned, I think
that is a good idea." U.S. officials say they are holding off
on more aggressive actions because the outbreak has been limited in the United
States and they do not want to cause a health scare. Korniewicz
says around the country health centers are putting in place emergency response
measures aimed at limiting disease outbreaks.
单选题
What promotes American doctors to begin monitoring actively for
possible infections?
A.There have been serious cases of swine flu in the United States.
B.U.S. health officials are increasing surveillance measures at doctors'
offices.
单选题
When someone has flu-like illness, why will a swab be taken in the nose
and sent to the lab?
A.To find more infections than under normal circumstances.
B.To examine if it is influenza or swine flu.
C.To see if the illness is serious.
D.To stop the illness spread to other areas.
【正确答案】
B
【答案解析】[解析] 本题依据第四段最后一句话，“...so we can see: is it influenza, is it this type”，以便查明：到底是流感，还是猪流感?A、C、D均不符合题干要求，没有依据。所以本题答案选B。
单选题
Why are people advised not to travel to Mexico?
A.Because it is the most serious area for the outbreak of swine flu.
B.Because a travel ban to the country has been ordered.
C.Because more than 100 cases of swine flu have been reported.
D.The Centers for Disease Control and Prevention forbids doing so.
【正确答案】
A
【答案解析】[解析] 本题依据第六段第一句话，“...Mexico, where the outbreak of swine flu is centered and more than 100 deaths have been reported.”，墨西哥是猪流感疫情爆发的中心，已报告的死亡病例超过100人。因此A正确。B项错误，禁令还没有下达。C项错误，100例死亡病例而非感染病例。D项错误，该中心建议而非禁止。所以本题选A。
单选题
What is one of the precautions that Japan has taken?
A.They make sure that they are asking flight passengers if they are
sick.
B.They are taking a temperature of every passenger when they get off the
airplane.
C.They are screening passengers on flights from Mexico.
D.They are forbidding people travelling to Mexico.
【正确答案】
B
【答案解析】[解析] 本题依据倒数第三段第三句话，“What Japan is doing is they are making everyone take a temperature when they get off the airplane”，日本的做法是，他们让所有下飞机的乘客量体温。其他几项均与日本无关。故本题选B。
单选题
Which statement is not true according to the passage?
A.U.S. health officials are increasing surveillance measures at doctors'
offices.
B.So far, the cases of swine flu in the United States are not very
serious.
C.U.S. officials are determined to take more aggressive actions against
swine flu.
D.Besser says the number of infections will probably rise.
【正确答案】
C
【答案解析】[解析] A出自第一段第一句话“U.S. health officials are increasing surveillance measures at doctors' offices and international borders to guard against the spread of swine flu”，美国卫生官员加强在医生诊所和国际边界的监测措施，防止猪流感的蔓延。B依据第二段“The Centers for Disease Control and Prevention says there have been only mild cases of swine flu in the United States”由mild可知情况并不严重。根据倒数第二段，美国官方尚不准备采取强有力的措施，所以，C错误。D依据第五段第二句话“He also says he expects the number of infections will rise and the illness will spread to other U.S. Regions”他预计感染的数量将上升。故本题选C。