问题 单项选择题

男,44岁,感冒后进行性四肢无力伴麻木,对称性痛,温,振动觉消失,无汗,伴尿潴留,考虑患者为()。

A.急性硬脊膜外脓肿

B.脊柱结核

C.急性脊髓炎

D.转移性肿瘤

E.脊髓出血

答案

参考答案:C

解析:急性脊髓炎多急性起病,青壮年较常见,病前常有感染症状,可有过劳、外伤及受凉等诱因,多为双下肢麻木无力、束带感。多有运动障碍、感觉障碍和自主神经功能障碍,如早期尿潴留等。

阅读理解

阅读理解。

     "I wish Central Bank would be robbed," George Pickens said to himself. He had been making this

wish daily from the time he had started work as a teller (银行柜员) at the bank.

     All over the country banks were being robbed, George thought sourly. Why not this bank? Were

robbers scornful of its four-million-dollar capital?Were they afraid of Mr. Ackerman, the old bank guard, who hadn't pulled out his gun in twenty-two years?

     Of course, George had a reason for wanting the bank to be robbed. After all, he couldn't simply take

the thick bundles of bills that were under his hands all day long. So he had thought of another way to get

them. His plan was simple. It went like this:

      If Bank Robber A holds up Bank Teller B…

      And if Bank Teller B gives Bank Robber A a certain amount of money…

     What is to prevent Bank Teller B from keeping all the money left and claiming that it was stolen by

Bank Robber A?There was only one problem. Where was Bank Robber A?

     One morning George entered the bank feeling something was about to happen. "Good morning, Mr.

Burrows." he said cheerfully. The bank president muttered something and went into his office.

     At two o'clock Bank Robber A walked in. George knew he was a bank robber. For one thing, he

slipped in. For another, he wore a mask.

     "This is a holdup." the man said roughly. He took a pistol from his pocket. The guard made a small

sound. "You," the bank robber said, "lie down on the floor." Mr. Ackerman lay down. The robber

stepped over to George's cage.

     "All right." he said. "Hand it over."

     "Yes, sir." said George. "Would you like it in ten-or-twenty-dollar bills?"

     "Just hand it over!"

     George reached into his cashbox and took all the bills from the top section-close to six thousand

dollars. He passed them through the window. The robber snatched them, stuffed them into his pocket,

and turned to leave.

     Then, while everyone watched Bank Robber A, Bank Teller B calmly lifted off the top section of the

cashbox and slipped bills from the bottom section into his pockets.

     The bank robber was gone. George fainted. When he woke he smiled up at the worried faces looking down at him. "I'm all right." he said bravely.

      "Perhaps you should go home, George." Mr. Bell, the chief auditor, said.

     As soon as he was safely behind his bedroom door, George took the money from his pockets and

counted it. He had seven thousand dollars. He was very happy.

     The next morning when George arrived at the bank, it was not open for business. But everyone was

there, helping to examine the bank's records for the special audit (审计师) Mr. Bell was taking.

     George was called into Mr. Burrows' office. The bank president seemed strangely cheerful. "George,"

he said, "I want you to meet Mr. Carruthers, who used to be president of our bank."

     "Good morning, George." said Mr. Carruthers. "I was sorry to hear you fainted yesterday. Are you all

right now?"

     "Yes, sir. Just fine, thanks."

     "I'm glad to hear it. That was quite an adventure. It just goes to show how easy it is to rob our bank."

     "Sir?"said George, confused.?

     "George, I was sorry to give you a hard time yesterday, but with all the banks being robbed these

days I thought it would be a good idea to prove that our little bank can be robbed too.     That's why I

played my little game yesterday, just to keep everybody on his toes."

"I don't understand." said George. "What game?"

     The old man laughed and whipped out a mask. He placed it over his face and said, "All right. Hand it

over!" Mr. Burrows laughed but George did not.

     "And the money?" George asked in a small voice.

     "Don't worry." Mr. Carruthers said. "I put it all back in your cashbox, all six thousand. We're just

finishing up the audit now." George turned cold with fear.

     Behind them, the door opened and Mr. Bell, the chief auditor, put his head into the room. "Mr.

Burrows," he said gravely, "may I see you a moment?"

1. George Pickens wished for a robbery because it would ___ .

A. help him take money without being caught    

B. make him look like a hero 

C. show that Central Bank was important

D. he will be praised by the bank president

2. Which of the following is suitable for the     ?

A. I am old but I am strong.    

B. I have retired, but I haven't stopping thinking.

C. It's only a small trick.      

D. It's a coincidence.

3. George fainted after the bank robber was gone because ____.

A. he was terrified                

B. he had a heart attack.

C. he had to pretend he was terrified  

D. he was too excited

4. Why didn't George laugh at the end of the story?

A. He turned pale and fainted again.  

B. He knew that his stealing would be discovered.

C. Mr. Bell had discovered that 6,000 dollars was missing.

D. He would be laid off even be sent to prison.

5. What can we conclude from this story? 

A. Interest is the best teacher.  

B. Honesty is the best policy.

C. All roads lead to Rome.      

D. Greed leads to crime.

阅读理解

400-year-old plants from the Little Ice Age were brought back to life, which could help us understand how the Earth will deal with climate change.

Moss(藓类植物) found buried beneath the Teardrop glacier(冰川) on Ellesmere Island in Canada has been brought back to life. Findings suggest that these plants could help repopulate regions exposed by melting ice caps. Plants that were buried beneath thick ice in Canada more than 400 years ago and were thought to have frozen to death have been brought back to life by Canadian scientists.

Samples of the moss plant, covered by the glacier during the Little Ice Age of 1550 to 1850 AD, were replanted in a lab at the University of Alberta and grew new stems(茎). Researchers now think these findings can give indication as to how regions can recover as the ice covering them melts.

Biologist Dr. Catherine La Farge and her team at the University of Alberta were exploring the region around the Teardrop glacier on Ellesmere Island. Ice on Ellesmere Island region has been melting at around four meters each year for the past nine years. This means that many areas of land that were previously covered by ice have since been exposed. Many ecosystems that were thought to have been destroyed during the Little Ice Age between 1550 and 1850 AD can now be studied, including many species that have never been studied before.

While examining an exposed area of land, La Farge and her team discovered a small area of moss called Aulacomnium turgidum. It is a type of bryophyte(苔藓类植物) plant that mainly grows across Canada, the US and the Highlands of Scotland.

Dr La Farge noticed that the moss had small patches of green stems, suggesting it is either growing again or can be encouraged to repopulate. Dr La Farge told the BBC, “When we looked at the samples in detail and brought them to the lab, I could see some of the stems actually had new growth of green branches, suggesting that these plants are growing again, and that blew my mind. When we think of thick areas of ice covering the landscape, we’ve always thought that plants have to come from refugia(濒绝生物保护区), never considering that land plants come from underneath a glacier. It’s a whole world of what’s coming out from underneath the glacier that really needs to be studied. The ice is disappearing pretty fast. We really have not examined all the biological systems that exist in the world; we don’t know it all.”

Dr La Farge took samples of the moss and, using carbon-dating techniques, discovered that the plants date back to the Little Ice Age. Dr La Farge’s team took the samples, planted them in dishes full of nutrient-rich potting soil and fed them with water.

The samples were from four separate species including Aulacomnium turgidum, Distichium capillaceum, Encalypta procera and Syntrichia ruralis. The moss plants found by Dr La Farge are types of bryophytes. Bryophytes can survive long winters and regrow when the weather gets warmer.

However, Dr La Farge was surprised that the plants buried under ice have survived into the twenty-first century. Her findings appear in proceedings(论文集)of the National Academy of Sciences.

小题1:Dr La Farge’s research is of great importance to ________.

A.knowing what the plants during the Little Ice Age were like

B.understanding how ecosystems recover from glaciers.

C.regrowing many species that have been destroyed before.

D.figuring out the effects of melting ice caps on moss.小题2:The underlined part “blew my mind” in Paragraph 6 can best be replaced by “________”.

A.surprised me

B.greatly frightened me

C.put my doubt out of my mind

D.was exactly what I had in my mind小题3:According to the passage, Aulacomnium turgidum ________.

A.lives better in small groups

B.is very active in hot weather

C.is strong enough to survive coldness

D.is chosen from Canadian refugia小题4:Which of the following would be the best title for the passage?

A.Bryophyte ecology is greatly affected by climate change.

B.400-year-old moss’s survival is a mystery to solve.

C.Moss in ancient times was discovered in Canada.

D.400-year-old plants were brought back to life.