题目内容：

    2019-nCoV, a cousin of the SARS virus, has infected more than 10000 people since the outbreak began in Wuhan, China, in December. Scientist Leo Poon, who first decoded the novel virus, thinks it likely started in an animal and spread to humans.

“What we know is that it causes pneumonia (肺炎) and then doesn’t respond to antibiotic (抗生素) treatment, which is not surprising, but then in terms of death rate, SARS kills 10% of the individuals,” Poon, a virologist at the School of Public Health at The University of Hong Kong, said.

2019-nCoV can make people sick, usually with a mild to moderate upper respiratory tract illness (上呼吸道疾病), similar to a common cold. Coronavirus symptoms include a runny nose, cough, sore throat, possibly a headache and maybe a fever, which can last for a couple of days. For those with a weakened immune system, the elderly, there’s a chance that the virus could cause a lower, and much more serious, respiratory tract illness like a pneumonia orbronchitis (支气管炎).

There are a handful of human coronaviruses that are known to be deadly.

Middle East Respiratory Syndrome (中东呼吸综合症), also known as the MERS virus, was first reported in the Middle East in 2012 and also causes respiratory problems, but those symptoms are much more severe. Three to four out of every 10 patients infected with MERS died, according to the CDC.

Severe Acute Respiratory Syndrome, also known as SARS, is the other coronavirus that can cause more severe symptoms. First identified in Guangdong Province in southern China, according to the WHO, it causes respiratory problems but can also cause diarrhea (腹泻), fatigue (疲劳), shortness of breath, respiratory distress (呼吸窘迫) and kidney failure (肾衰). Depending on the patient’s age, the death rate with SARS ranged from 0-50% of the cases, with older people being the most vulnerable (易受伤害的).

Viruses can spread from human contact with animals. Scientists think MERS started in camels, according to the WHO. With SARS, scientists suspected civet cats were to blame.

When it comes to human-to-human transmission of 2019-nCoV, often it happens when someone comes into contact with the infected person’s secretions (分泌物). Depending on how virulent (有毒的) the virus is, a cough, sneeze or handshake could cause exposure. The virus can also be transmitted by touching something an infected person has touched and then touching your mouth, nose or eyes. Caregivers (护理人员) can sometimes be exposed by handling a patient’s waste, according to the CDC.

1.Which of the following can explain the underlined word “decoded”in paragraph 1?

A.found or discovered something.

B.put something into a code.

C.changed something into ordinary language.

D.changed something into a form that can be processed.

2.Which of the following statements is true?

A.Antibiotic treatment has some effect on 2019-nCoV.

B.2019-nCoV usually causes severe illness similar to a pneumonia or bronchitis.

C.Novel Coronavirus Pneumonia, MERS and SARS are all caused by corona viruses.

D.2019-nCoV spreads just by getting close to the infected person.

3.What type of writing is the passage?

A.An instruction. B.A news report.

C.An advertisement. D.A scientific paper.