完形填空(共20小题；每小题l.5分，满分30分)

Once upon a time, there lived many doves (鸽子) in the jungle. One day they went out in search of food. They flew long distances   1  did not get anything to eat. All of them were now completely  2.

A young dove asked the King Dove, “Your Majesty(陛下), please   3  us to take some rest.” The king replied, “Have   4, my dear young fellow. We shall   5   get something to eat very soon.”

The young dove started flapping(拍打) his wings with   6  and soon left everyone else behind. After some time, he   7  and spoke to others, “Hey, I see lots of   8 down there.”

Hearing this, all the doves started  9  the scattered (散落的) grains under a banyan tree.   10  the King Dove said, “It is too good to be true. There is something wrong. Don’t rush towards the grains. It may be a   11 . Some hunter must have laid a trap(陷阱).”

But the doves were extremely hungry. The   12  of the grains was too tempting (诱惑人的). Without giving a(n)   13  to the king’s advice, they swooped (突然下降) down and started eating the grains. After having a big   14, they tried to fly away only to   15 that they were caught in a net.

The King Dove said, “I told you before that it is a trick of some hunter.”

All of them felt ashamed and   16  . One of them said to the King Dove, “Oh, Your Majesty, please save us.”

So the King Dove said, “All of you must try to fly with the   17  at the same time and in the same   18, all of you.”

Just then they saw a(n)   19  show up. The King Dove said, “Now all of you, fly together.”

So all the doves flapped their wings together and flew with the net. The hunter stood shocked. He couldn’t   20  what he had just seen.

1.                A．but            B．and            C．so   D．however

2.                A．excited         B．surprised       C．tired D．embarrassed

3.                A．let            B．leave           C．permit   D．accept

4.                A．rest           B．courage         C．luck D．belief

5.                A．slowly          B．perhaps         C．possibly  D．surely

6.                A．surprise        B．pleasure        C．force D．anger

7.                A．turned down    B．turned back      C．held back D．held down

8.                A．persons        B．hunters         C．plants    D．grains

9.                A．rushing towards  B．looking for      C．picking up D．dropping down

10.               A．Gladly          B．Amazedly       C．Hardly D．Suddenly

11.               A．magic          B．trick           C．dream D．mistake

12.               A．color          B．smell          C．view  D．sight

13.               A．sound          B．thought         C．idea  D．care

14.               A．meeting        B．discussion       C．meal  D．break

15.               A．appreciate      B．understand      C．realize    D．concern

16.               A．pleased        B．scared         C．full   D．sick

17.               A．food           B．king           C．net   D．wing

18.               A．way           B．place          C．circle D．direction

19.               A．hunter         B．guide          C．adult D．child

20.               A．believe         B．remember      C．tell   D．catch

完形填空(共20小题；每小题l.5分，满分30分)
Once upon a time, there lived many doves (鸽子) in the jungle. One day they went out in search of food. They flew long distances   1  did not get anything to eat. All of them were now completely  2.
A young dove asked the King Dove, “Your Majesty(陛下), please   3  us to take some rest.” The king replied, “Have   4, my dear young fellow. We shall   5   get something to eat very soon.”
The young dove started flapping(拍打) his wings with   6  and soon left everyone else behind. After some time, he   7  and spoke to others, “Hey, I see lots of   8 down there.”
Hearing this, all the doves started  9  the scattered (散落的) grains under a banyan tree.   10  the King Dove said, “It is too good to be true. There is something wrong. Don’t rush towards the grains. It may be a   11 . Some hunter must have laid a trap(陷阱).”
But the doves were extremely hungry. The   12  of the grains was too tempting (诱惑人的). Without giving a(n)   13  to the king’s advice, they swooped (突然下降) down and started eating the grains. After having a big   14, they tried to fly away only to   15 that they were caught in a net.
The King Dove said, “I told you before that it is a trick of some hunter.”
All of them felt ashamed and   16  . One of them said to the King Dove, “Oh, Your Majesty, please save us.”
So the King Dove said, “All of you must try to fly with the   17  at the same time and in the same   18, all of you.”
Just then they saw a(n)   19  show up. The King Dove said, “Now all of you, fly together.”
So all the doves flapped their wings together and flew with the net. The hunter stood shocked. He couldn’t   20  what he had just seen.

PEOPLE who have had a painful experience may wish they could wipe the memory from their minds. Researchers at Johns Hopkins University, US, say that this may someday be possible.
A drug remains far off, but researchers have laid a foundation with their discovery that proteins can be removed from the brain’s fear center to cut memories forever.
Previous research had already shown that a special behavior therapy (治疗) could cut painful memories. But relapse (复发) was possible because the memory hadn’t necessarily disappeared.
By looking at that process, Richard Huganir and Roger Clem, two researchers from Johns Hopkins University, discovered a “window of vulnerability (脆弱的窗口)” when proteins are created. The proteins help signals travel within the brain as painful memories are made. Because the proteins are unstable, they can be easily removed with drugs or behavior therapy to cut memories.
Researchers used mice to find the window, but think the process would be the same in humans. They used electric shocks to make the mice fear a certain sound. The sound triggered (触发) the creation of the proteins, called calcium-permeable (钙通透性) AMPARS, which formed for a day or two in the fear centers of the mice’s brains.
The researchers are working on ways to reopen the window by recalling (唤醒) the painful memory and using drugs to remove the protein. They published their report online last month in Science Express.
Their research has drawn interest and concern from experts in mental healthcare.
Kate Farinholt, a mental health expert with the National Alliance on Mental Illness, Maryland, US, said many people suffering from a painful event might benefit from erasing a memory. “Erasing a memory and then everything bad built on that is an amazing idea, and I can see all sorts of potential ,” she said.
But there are a lot of unanswered questions, too.
“Completely deleting a memory is a little scary. How do you remove a memory without removing a part of someone’s life,” Farinholt said. “And is it best to do that, considering that people grow and learn from their experiences?”
【小题1】What have researchers at Johns Hopkins University found recently?  

PEOPLE who have had a painful experience may wish they could wipe the memory from their minds. Researchers at Johns Hopkins University, US, say that this may someday be possible.

A drug remains far off, but researchers have laid a foundation with their discovery that proteins can be removed from the brain’s fear center to cut memories forever.

Previous research had already shown that a special behavior therapy (治疗) could cut painful memories. But relapse (复发) was possible because the memory hadn’t necessarily disappeared.

By looking at that process, Richard Huganir and Roger Clem, two researchers from Johns Hopkins University, discovered a “window of vulnerability (脆弱的窗口)” when proteins are created. The proteins help signals travel within the brain as painful memories are made. Because the proteins are unstable, they can be easily removed with drugs or behavior therapy to cut memories.

Researchers used mice to find the window, but think the process would be the same in humans. They used electric shocks to make the mice fear a certain sound. The sound triggered (触发) the creation of the proteins, called calcium-permeable (钙通透性) AMPARS, which formed for a day or two in the fear centers of the mice’s brains.

The researchers are working on ways to reopen the window by recalling (唤醒) the painful memory and using drugs to remove the protein. They published their report online last month in Science Express.

Their research has drawn interest and concern from experts in mental healthcare.

Kate Farinholt, a mental health expert with the National Alliance on Mental Illness, Maryland, US, said many people suffering from a painful event might benefit from erasing a memory. “Erasing a memory and then everything bad built on that is an amazing idea, and I can see all sorts of potential ,” she said.

But there are a lot of unanswered questions, too.

“Completely deleting a memory is a little scary. How do you remove a memory without removing a part of someone’s life,” Farinholt said. “And is it best to do that, considering that people grow and learn from their experiences?”

1.What have researchers at Johns Hopkins University found recently?  

A. A new drug to erase painful memories from human brains.

B. A special behavior therapy to erase painful memories.

C. Removing certain proteins from the brain can wipe painful memories.

D. Erasing memory damages a patient’s brain functions.

2.What makes it possible to erase painful memories according to Paragraph 4? 

A. The way the brain cells are created.

B. The unstable character of the proteins in the brain.

C. The strength of the signals the proteins send.

D. The drugs that can stop the formation of memories.

3.Which of the following shows the stages of the process done on mice? 

a. removal of fear proteins            b. making mice fear a certain sound

c. fear proteins created in mice brains   d. making mice recall painful memories

A. a-b-c-d    B. d-a-c-b    C. b-c-d-a    D. c-b-d-a

4.What is Kate Farinholt’s opinion of the research? 

A. People may lose the chance to learn from their bad experiences.

B. The research will be a great breakthrough in treating painful memories.

C. People could suffer long-term memory loss.

D. People could forget happy memories as well.

PEOPLE who have had a painful experience may wish they could wipe the memory from their minds. Researchers at Johns Hopkins University, US, say that this may someday be possible.

A drug remains far off, but researchers have laid a foundation with their discovery that proteins can be removed from the brain’s fear center to cut memories forever.

Previous research had already shown that a special behavior therapy (治疗) could cut painful memories. But relapse (复发) was possible because the memory hadn’t necessarily disappeared.

By looking at that process, Richard Huganir and Roger Clem, two researchers from Johns Hopkins University, discovered a “window of vulnerability (脆弱的窗口)” when proteins are created. The proteins help signals travel within the brain as painful memories are made. Because the proteins are unstable, they can be easily removed with drugs or behavior therapy to cut memories.

Researchers used mice to find the window, but think the process would be the same in humans. They used electric shocks to make the mice fear a certain sound. The sound triggered (触发) the creation of the proteins, called calcium-permeable (钙通透性) AMPARS, which formed for a day or two in the fear centers of the mice’s brains.

The researchers are working on ways to reopen the window by recalling (唤醒) the painful memory and using drugs to remove the protein. They published their report online last month in Science Express.

Their research has drawn interest and concern from experts in mental healthcare.

Kate Farinholt, a mental health expert with the National Alliance on Mental Illness, Maryland, US, said many people suffering from a painful event might benefit from erasing a memory. “Erasing a memory and then everything bad built on that is an amazing idea, and I can see all sorts of potential ,” she said.

But there are a lot of unanswered questions, too.

“Completely deleting a memory is a little scary. How do you remove a memory without removing a part of someone’s life,” Farinholt said. “And is it best to do that, considering that people grow and learn from their experiences?”

What have researchers at Johns Hopkins University found recently?  

A. A new drug to erase painful memories from human brains.

B. A special behavior therapy to erase painful memories.

C. Removing certain proteins from the brain can wipe painful memories.

D. Erasing memory damages a patient’s brain functions.

What makes it possible to erase painful memories according to Paragraph 4? 

A. The way the brain cells are created.

B. The unstable character of the proteins in the brain.

C. The strength of the signals the proteins send.

D. The drugs that can stop the formation of memories.

Which of the following shows the stages of the process done on mice? 

a. removal of fear proteins            b. making mice fear a certain sound

c. fear proteins created in mice brains   d. making mice recall painful memories

A. a-b-c-d    B. d-a-c-b    C. b-c-d-a    D. c-b-d-a

What is Kate Farinholt’s opinion of the research? 

A. People may lose the chance to learn from their bad experiences.

B. The research will be a great breakthrough in treating painful memories.

C. People could suffer long-term memory loss.

D. People could forget happy memories as well.