问题 单项选择题 A1/A2型题

脊髓灰质炎病毒感染人体主要通过()

A.虫媒传播

B.输血传播

C.呼吸道传播

D.直接接触传播

E.消化道传播

答案

参考答案:E

解析:小RNA病毒科肠道病毒属根据宿主范围和致病性分为4个亚组,即脊髓灰质炎病毒、柯萨奇病毒、埃可病毒和新肠道病毒。脊髓灰质炎病毒呈世界性分布,是引起脊髓灰质炎的病原体,经消化道传播。人受脊髓灰质炎病毒感染后大多无症状,常为亚临床感染。只有约0.1%的感染者因病毒侵犯中枢神经系统,破坏脊髓前角运动神经元,导致弛缓性肢体麻痹。本病多见于儿童,故又称小儿麻痹症。

阅读理解

阅读理解。

  Every child has a dream of what they want to be, right? When Rence Butts

was little, her dream was to become a volunteer firefighter because her father

was one. Sadly, when she was 14, her father died and she was never able to

volunteer with him. Rence's story doesn't end there, however, which is why I

think of her as a true heroine. She was strong-minded and never gave up, which

makes her a good firefighter.

  Some days she must be ready to deal with any emergency, like fighting a

fire, dealing with a car accident or helping someone who's sick. Other days she

is in the driver's seat. Sometimes Rence works nine to eleven days a month on

24-hour shifts. She also has a family to take care of. Her husband is a firefighter,

too.

Rence remembers the first time she fought a fire. She was awoken early in the

morning by the alarm. She said she was very nervous but did what she had to do.

When I asked Rence what the best part of her job is, she replied. "Helping

people and saving their lives." I think that shows signs of being a true heroine.

She's always glad to do anything for anyone in need. With 140 people in her

station, Rence is one of the only three women.

  I think she's great. We could never live without people like her who is glad

to help others. Rence's deed helps me believe that I can do anything. I hope

someday to be just like her: to wake up and help people every day.

1. When her father died, Rence Butts _____.

A. gave up her dream                  

B. decided to do as her father did

C. married a firefighter                

D. became a child without family

2. What is Rence's husband?

A. A driver.      

B. A writer.        

C. A doctor.      

D. A fireman.

3. Which of the following is TRUE according to the passage?

A. The writer learns a lot from Rence.

B. There are 143 members in the station.

C. Rence works 9 to 11 hours every day.

D. Rence wants to be famous by doing so.

4. What does the writer think of Rence Butts?

A. Clever.        

B. Careful.        

C. Helpful.        

D. Outgoing.

5. What's the best title for the passage?

A. True heroine                      

B. A busy volunteer

C. A famous woman                  

D. A sweet dream

选择题