名校课堂系列答案科目：高中英语 来源： 题型：阅读理解
A chemical important of brain development may play a role in explaining why some people are genetically (由基因决定地) likely to suffer from anxiety and could lead to new treatments, U．S. researchers said.
They said highly anxious rats which were kept had very low levels of a brain chemical called fibroblast growth factor 2 or FGF2, compared with rats that were more relaxed. But when they improved the anxious rats' living conditions—giving them new toys to explore and a bigger cage to live in—levels of this brain chemical increased and they became less anxious.
“The levels of this brain chemical increased in response to the experiences that the rats were exposed to. It also decreased their anxiety.”Javier Perez of the University o f Michigan said in a telephone interview. “It made them behave the same way as the rats that were relaxed，”he said.
In a former study of people who were severely depressed before they died, the team found the gene that makes FGF2 was producing very low levels of the growth factor, which is known primarily for organizing the brain during development and repairing it after injury.
Perez thinks the brain chemical may be a marker for genetic vulnerability (脆弱性) to anxiety and depression. But it can also respond to changes in the environment in a positive way, possibly by preserving new brain cells.
While both the calm and anxious rats produced the same number of new brain cells, these cells were less likely to survive in the high－anxiety rats, the team found. Giving the rats better living conditions or injecting them with FGF2 helped improve cell survival.
“This discovery may pave the way for new, more specific treatments for anxiety that will not be based on sedation(药物镇静), but will instead fight the real cause of the disease，” Dr. Pier Vincenzo Piazza from France said in a statement.
6. We know from the passage that with the levels of FGF2 decreasing, the rats will ________.
A. die of anxiety soon B. suffer from a headache
C. become more relaxed D. become more anxious
7. What's the better way to increase the levels of FGF2?
A. Introducing more companions to the anxious rats.
B. Improving the living conditions of the anxious rats.
C. Injecting the anxious rats with some special medicine.
D. Giving the anxious rats more time to relax.
8. The underlined word “it” in Paragraph 4 refers to ________.
A. the team B. the gene
C. the growth factor D. the brain
9. What's the main influence of the new discovery?
A. Doctors won't use any medicine to cure anxiety.
B. Doctors may treat anxiety more efficiently.
C. Doctors will find the real cause of anxiety.
D. Doctors may find new medicine for anxiety.
10. Which of the following would be the most suitable title for the passage?
A. Anxious rats and relaxed rats
B. Anxiety—a serious mental disease
C. Scientific research into the brain is important
D. Brain chemical may play key role in anxiety
查看答案和解析>>
科目：高中英语 来源：河北省唐山一中2010年高考冲刺英语试题（二） 题型：阅读理解
It was 3:00 a.m. Rain beat against the windows. Tamsen Bell’s cellphone began to ring so she jumped out of bed quickly for she knew that someone was in trouble, and it was up to her and the other members of the Marin Search and Rescue Team to help. The team has a motto: “Any time, any place, any weather.” Bell, 18, joined the search-and-rescue team when she was 14 years old, the youngest age at which a person can join. “I remember the first search I ever went on,” Bell says. “I was very nervous.” Thanks to the strict training program, Bell now is no longer nervous and a lot more confident.
When Bell was 16 years old, she took a lead role in a tough search-and-rescue action that she says changed her life. While hiking, a 60-year-old woman fell off a cliff and landed on a mountain ledge(岩石架). Bell slid down in a seated position to get to where the injured woman lay. The situation was very dangerous and she had to make a quick decision which could have endangered the woman’s life. Bell helped to lift the woman onto a litter(担架), and her teammates then pulled the litter up the mountain using ropes. The rescue took more than eight hours , the longest in the history of the team.
Afterwards, Bell said she realized that she could keep cool in stressful situations. The experience inspired her to devote her life to helping others. She remains a search-and-rescue member and plans to study nursing in college.
“Search-and-rescue work may be tough, but it is rewarding. The best part is the support, and the common feeling that everyone on the team wants to make people’s lives better.” Said Bell.
1. According to the passage, we know that Bell ______.
A. was the youngest member in the team
B. plays a leading role in every task
C. majored in nursing in college
D. learned a lot through the training program
2. Why does Bell say that the tough action changed her life?
A. She learnt to make quick decisions when in danger.
B. She learnt to transport the injured to safety through a litter.
C. The experience inspired her to devote herself to helping others
D. The experience made her realize that she could calm down even in danger.
3. Which of the following is TURE about Bell’s tough task?
A. It was the toughest task in the history of the team.
B. Bell slid down the cliff seated in a litter.
C. It’s the first task Bell took part in after the training program.
D. Bell played a very important role in the action.
4. The passage is mainly about_______.
A. a tough task Bell carried out
B. Bell’s job as a young search-and-rescue member
C. how people keep cool in dangerous situations
D. what search-and-rescue tasks are
查看答案和解析>>
科目：高中英语 来源：2013届浙江省宁波市鄞州区高三5月适应性考试英语试卷（带解析） 题型：阅读理解
“Well, what did I say？Buck’s a real fighter, all right,” said Francois the next morning when he discovered that Spitz had disappeared and that Buck was covered in blood．
“Spitz fought like a wolf,” said Perrault, as he looked at the bites all over Buck．
“And Buck fought like ten wolves,” answered Francois. “And we'll travel faster now. No more Spitz，no more trouble.”
Francois started to harness the dogs. He needed a new lead-dog, and decided that Solleks was the best dog that he had. But Buck jumped at Solleks and took his place．
“Look at Buck！” said Francois，laughing. “He's killed Spitz，and now he wants to be lead-dog．Go away, Buck！”
He pulled Buck away and tried to harness Solleks again．Solleks was unhappy too. He was frightened of Buck, and when Francois turned his back，Buck took Solleks’ place again. Now Francois was angry．
“I'll show you! ” he cried，and went to get a heavy club from the sledge．
Buck remembered the man in the red coat，and moved away. This time，when Solleks was harnessed as lead-dog，Buck did not try to move in．He kept a few meters away and circled around Francois carefully. But when Francois called him to his old place in front of Dave, Buck refused．He had won his fight with Spitz and he wanted to be lead－dog．
For an hour the two men tried to harness him．Buck did not run away，but he did not let them catch him．Finally，Francois sat down，and Perrault looked at his watch．It was getting late. The two men looked at one another and smiled. Francois walked up to Solleks，took off his harness， led him back and harnessed him in his old place．Then he called Buck. All the other dogs were harnessed and the only empty place was now the one at the front. But Buck did not move．
“Put down the club,” said Perrault．
Francois dropped the club, and immediately Buck came up to the front of the team．Francois harnessed him, and in a minute the sledge was moving．
Buck was an excellent leader. He moved and thought quickly and led the other dogs well. A new leader made no difference to Dave and Solleks; they continued to pull hard．But the other dogs had had an easy life when Spitz was leading．They were surprised when Buck made them work hard and punished them for their mistakes. Pike，the second dog，was usually lazy；but by the end of the first day he was pulling harder than he had ever pulled in his life. The first night in camp Buck fought Joe，another difficult dog，and after that there were no more problems with him．The team started to pull together，and to move faster and faster．
“I've never seen a dog like Buck!” cried Francois, “Never! He's worth a thousand dollars. What do you think, Perrault? ”
Perrault agreed．They were moving quickly，and covering more ground every day. The snow was good and hard，and no new snow fell．The temperature dropped to 45°C below zero, and didn't change．
This time there was more ice on the Thirty Mile River, and they crossed in a day．Some days they ran a hundred kilometers，or even more. They reached Skagway in fourteen days; the fastest time ever．
【小题1】The writer mentioned “the man in the red coat” in the passage to show that____.
| A．the man in the red coat once beat Buck severely with a club. |
| B．Buck remembered Francois was the man in the red coat. |
| C．the man in the red was quite friendly to Buck in his memory. |
| D．Buck remembered Francois was a friend of the man in the red coat. |
| A．He wanted to get rid of Joe. |
| B．He wanted to make some trouble. |
| C．He was interested in fighting with others. |
| D．He wanted to teach Joe a lesson. |
| A．Dave stood in the second position in the team. |
| B．Joe was always quite lazy in the team. |
| C．Pike was a trouble-maker in the team. |
| D．Solleks was hard-working in the team. |
| A．annoying | B．admirable | C．aggressive | D．average |
| A．He killed Spitz at the beginning of the story. |
| B．He punished them for their mistakes. |
| C．He fought Joe the first night in camp. |
| D．They reached Skagway in the fastest time ever. |
| A．The Fight with Dogs | B．The New Lead-dog | C．A Dog Called Buck | D．A Real Fighter |
查看答案和解析>>
科目：高中英语 来源：2012-2013学年安徽泗县二中高一下期期末考试英语卷（带解析） 题型：阅读理解
“Well, what did I say？Buck’s a real fighter, all right,” said Francois the next morning when he discovered that Spitz had disappeared and that Buck was covered in blood．
“Spitz fought like a wolf,” said Perrault, as he looked at the bites all over Buck．
“And Buck fought like ten wolves,” answered Francois. “And we'll travel faster now. No more Spitz，no more trouble.”
Francois started to harness the dogs. He needed a new lead-dog, and decided that Solleks was the best dog that he had. But Buck jumped at Solleks and took his place．
“Look at Buck！” said Francois，laughing. “He's killed Spitz，and now he wants to be lead-dog．Go away, Buck！”
He pulled Buck away and tried to harness Solleks again．Solleks was unhappy too. He was frightened of Buck, and when Francois turned his back，Buck took Solleks’ place again. Now Francois was angry．
“I'll show you! ” he cried，and went to get a heavy club from the sledge．
Buck remembered the man in the red coat，and moved away. This time，when Solleks was harnessed as lead-dog，Buck did not try to move in．He kept a few meters away and circled around Francois carefully. But when Francois called him to his old place in front of Dave, Buck refused．He had won his fight with Spitz and he wanted to be lead－dog．
For an hour the two men tried to harness him．Buck did not run away，but he did not let them catch him．Finally，Francois sat down，and Perrault looked at his watch．It was getting late. The two men looked at one another and smiled. Francois walked up to Solleks，took off his harness， led him back and harnessed him in his old place．Then he called Buck. All the other dogs were harnessed and the only empty place was now the one at the front. But Buck did not move．
“Put down the club,” said Perrault．
Francois dropped the club, and immediately Buck came up to the front of the team．Francois harnessed him, and in a minute the sledge was moving．
Buck was an excellent leader. He moved and thought quickly and led the other dogs well. A new leader made no difference to Dave and Solleks; they continued to pull hard．But the other dogs had had an easy life when Spitz was leading．They were surprised when Buck made them work hard and punished them for their mistakes. Pike，the second dog，was usually lazy；but by the end of the first day he was pulling harder than he had ever pulled in his life. The first night in camp Buck fought Joe，another difficult dog，and after that there were no more problems with him．The team started to pull together，and to move faster and faster．
“I've never seen a dog like Buck!” cried Francois, “Never! He's worth a thousand dollars. What do you think, Perrault? ”
Perrault agreed．They were moving quickly，and covering more ground every day. The snow was good and hard，and no new snow fell．The temperature dropped to 45°C below zero, and didn't change．
This time there was more ice on the Thirty Mile River, and they crossed in a day．Some days they ran a hundred kilometers，or even more. They reached Skagway in fourteen days; the fastest time ever．
【小题1】The writer mentioned “the man in the red coat” in the passage to show that____.
| A．the man in the red coat once beat Buck severely with a club. |
| B．Buck remembered Francois was the man in the red coat. |
| C．the man in the red was quite friendly to Buck in his memory. |
| D．Buck remembered Francois was a friend of the man in the red coat. |
| A．He wanted to get rid of Joe. |
| B．He wanted to make some trouble. |
| C．He was interested in fighting with others. |
| D．He wanted to teach Joe a lesson. |
| A．Dave stood in the second position in the team. |
| B．Joe was always quite lazy in the team. |
| C．Pike was a trouble-maker in the team. |
| D．Solleks was hard-working in the team. |
| A．annoying | B．admirable | C．aggressive | D．average |
| A．He killed Spitz at the beginning of the story. |
| B．He punished them for their mistakes. |
| C．He fought Joe the first night in camp. |
| D．They reached Skagway in the fastest time ever. |
| A．The Fight with Dogs | B．The New Lead-dog |
| C．A Dog Called Buck | D．A Real Fighter |
查看答案和解析>>
科目：高中英语 来源：2012-2013学年浙江省宁波市鄞州区高三5月适应性考试英语试卷（解析版） 题型：阅读理解
“Well, what did I say？Buck’s a real fighter, all right,” said Francois the next morning when he discovered that Spitz had disappeared and that Buck was covered in blood．
“Spitz fought like a wolf,” said Perrault, as he looked at the bites all over Buck．
“And Buck fought like ten wolves,” answered Francois. “And we'll travel faster now. No more Spitz，no more trouble.”
Francois started to harness the dogs. He needed a new lead-dog, and decided that Solleks was the best dog that he had. But Buck jumped at Solleks and took his place．
“Look at Buck！” said Francois，laughing. “He's killed Spitz，and now he wants to be lead-dog．Go away, Buck！”
He pulled Buck away and tried to harness Solleks again．Solleks was unhappy too. He was frightened of Buck, and when Francois turned his back，Buck took Solleks’ place again. Now Francois was angry．
“I'll show you! ” he cried，and went to get a heavy club from the sledge．
Buck remembered the man in the red coat，and moved away. This time，when Solleks was harnessed as lead-dog，Buck did not try to move in．He kept a few meters away and circled around Francois carefully. But when Francois called him to his old place in front of Dave, Buck refused．He had won his fight with Spitz and he wanted to be lead－dog．
For an hour the two men tried to harness him．Buck did not run away，but he did not let them catch him．Finally，Francois sat down，and Perrault looked at his watch．It was getting late. The two men looked at one another and smiled. Francois walked up to Solleks，took off his harness， led him back and harnessed him in his old place．Then he called Buck. All the other dogs were harnessed and the only empty place was now the one at the front. But Buck did not move．
“Put down the club,” said Perrault．
Francois dropped the club, and immediately Buck came up to the front of the team．Francois harnessed him, and in a minute the sledge was moving．
Buck was an excellent leader. He moved and thought quickly and led the other dogs well. A new leader made no difference to Dave and Solleks; they continued to pull hard．But the other dogs had had an easy life when Spitz was leading．They were surprised when Buck made them work hard and punished them for their mistakes. Pike，the second dog，was usually lazy；but by the end of the first day he was pulling harder than he had ever pulled in his life. The first night in camp Buck fought Joe，another difficult dog，and after that there were no more problems with him．The team started to pull together，and to move faster and faster．
“I've never seen a dog like Buck!” cried Francois, “Never! He's worth a thousand dollars. What do you think, Perrault? ”
Perrault agreed．They were moving quickly，and covering more ground every day. The snow was good and hard，and no new snow fell．The temperature dropped to 45°C below zero, and didn't change．
This time there was more ice on the Thirty Mile River, and they crossed in a day．Some days they ran a hundred kilometers，or even more. They reached Skagway in fourteen days; the fastest time ever．
1.The writer mentioned “the man in the red coat” in the passage to show that____.
A．the man in the red coat once beat Buck severely with a club.
B．Buck remembered Francois was the man in the red coat.
C．the man in the red was quite friendly to Buck in his memory.
D．Buck remembered Francois was a friend of the man in the red coat.
2. Why did Buck fight Joe the first night in camp?
A．He wanted to get rid of Joe.
B．He wanted to make some trouble.
C．He was interested in fighting with others.
D．He wanted to teach Joe a lesson.
3. According to the passage, which of the following is true about the other dogs?
A．Dave stood in the second position in the team.
B．Joe was always quite lazy in the team.
C．Pike was a trouble-maker in the team.
D．Solleks was hard-working in the team.
4. What did Francois think of Buck at the end of the passage?
A．annoying B．admirable C．aggressive D．average
5. Which of the following best shows that Buck was an excellent leader?
A．He killed Spitz at the beginning of the story.
B．He punished them for their mistakes.
C．He fought Joe the first night in camp.
D．They reached Skagway in the fastest time ever.
6.Which of the following is the best title for the passage?
A．The Fight with Dogs B．The New Lead-dog C．A Dog Called Buck D．A Real Fighter
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
