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问题 选择题

脊髓从胸段折断的病人，出现大小便失禁的原因是                  （   ）

A．排尿排便的信息不能传导到脊髓

B．大脑不能控制脊髓的反射活动

C．脊髓灰质失去反射功能

D．大小便不受脊髓控制

答案

答案：B

题目分析：排尿中枢、排便中枢是位于脊髓里的低级中枢，其活动受大脑皮层的调节，脊髓从胸段折断的病人，出现大小便失禁，说明脊髓从胸部横断，脊髓里胸部以下的排便、排尿中枢失去了大脑的控制，导致大小便失禁．

阅读理解


Sally: an animal doctor
What’s the worst thing that’s ever happened in your job?
Probably the dog that bit me. It wasn’t a big one - I don’t mind the big ones. The small ones are the worst. It gave me a very nasty bite.
Have you ever done any other jobs?
Yes, I did different kinds of jobs when I was a student. One summer I did fruit-picking in Spain.
What’s the worst job you’ve ever done?
In order to improve my English, I worked for a rich family in New York. I never had a day off and I had to do everything – cooking, cleaning, shopping- and look after their horrible children. I left after two weeks and managed to get a job as a waitress in an Italian restaurant.

Leo: an actor
What’s the worst thing that’s ever happened in your job?
So many bad things have happened-but I think my worst moment was when I read my first bad review in the newspaper. They wrote terrible things about me, and I was so upset. After that I didn’t read my reviews any more.
Have you ever done any other jobs?
Oh yes, it’s hard to make a living as an actor. So I’ve done lots of part-time jobs over the years. For example, I’ve worked in a shop, sold ice cream at the beach and handed out publicity flyers in the street.
What’s the worst job you’ve ever done?
The worst job I’ve ever done was at an egg-packing factory. Working conditions are terrible-you stand for hours at the end of a belt, putting eggs into boxes. You can’t have a break, and if you want to go to the toilet, you have to ask for permission. And worst of all, the smell was terrible- I’ve never eaten an egg since then.
小题1:The underlined word “one” refers to “__________”.
A．dogB．bite
C．eventD．job
小题2:Sally has done the following jobs EXCEPT __________.
A．picking fruit in Spain
B．working for a rich family
C．looking after sick animals
D．cooking in an Italian restaurant
小题3:After reading his first bad review in the newspaper, Leo __________.
A．wrote more reviews
B．replied to every review
C．gave up his job as an actor
D．stopped reading any of his reviews
小题4:What does Leo think of being an actor?
A．It’s hard to make a living.
B．It’s helpful to read his reviews.
C．It’s easy to make lots of money.　
D．It’s fun to have different experiences.
小题5:What did Leo hate most when working at an egg-packing factory?
A．No breaks.B．Standing for too long.
C．The bad smell.D．Putting eggs into boxes.
小题6:The best title of the passage might be __________.
A．An Animal DoctorB．Terrible Job Experiences
C．How to Find a Part-time JobD．Reviews of Sally a nd Leo
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选择题

在下列各组大气垂直分层中，总体而言，温度随着高度的增加而上升的一组是[ ]

A．对流层、电离层

B．平流层、电离层

C．平流层、中问层

D．对流层、中间层
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