NOT all memories are sweet. Some people -- all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars (伤痕).
Now American researchers think they are close to developing a pill, which will help people forget bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it might reduce, or possibly erase, the effect of painful memories.
In November, experts tested a drug on people in the US and France. The drug stops the body producing chemicals that fix memories in the brain (大脑). So far the research has suggested that only the emotional effects of memories may be reduced, not that the memories are erased.
The research has caused a great deal of discussion. Some think it is a bad idea, while others support it.
Supporters say it could lead to pills that prevent or treat soldiers' troubling memories after war. They say that there are many people who suffer from terrible memories.
"Some memories can destroy people's lives. They come back to you when you don't want to have them in a daydream or nightmare (噩梦). They usually come with very painful emotions," said Roger Pitman, a professor of psychiatry at Harvard Medical School. "This could relieve a lot of that suffering."
But those who are against the research say that changing memories is very dangerous because memories give us our identity (特质). They also help us all avoid the mistakes of the past.
"All of us can think of bad events in our lives that were horrible at the time but make us who we are. I'm not sure we want to wipe those memories out, "said Rebecca Dresser, a medical ethicist.
【小题1】The passage is mainly about          

A．a new medical invention

B．a new research on the pill

C．a way of erasing painful memories

D．a discussion about the research on the pill

【小题2】The drug tested on people can           

A．cause the brain to fix memories

B．stop people remembering bad experiences

C．prevent body producing certain chemicals

D．erase the emotional effects of memories

【小题3】We can infer from the passage that            

A．people doubt the effects of the pills

B．the pill will stop people's bad experiences

C．taking the pill will do harm to people's health

D．the pill has probably been produced in America

【小题4】Which of the following does Rebecca Dresser agree with?

A．Some memories can destroy people's lives.

B．People want to remove bad memories.

C．Experiencing bad events makes us different from others.

D．The pill will reduce people's sufferings from bad memories.

—Tom, please wash the fruit more times.

  --I see. People use chemicals______on their fields.

A. much too         B. too much           C. many too           D. too many

 

Not all memories (记忆)are sweet. Some people spend all their lives trying to forget bad experiences. Wars and traffic accidents can leave people with terrible physical and mental scars. Often they appear again in dreams.

Now American researchers think they are close to developing a pill(药丸), which will help people forget bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it might reduce（减少）, or possibly erase(抹去) the effect of sad memories.

In November, some scientists tested a drug(药) on people in the US and France. The drug stops the body producing chemicals(化学品) that fix memories in the brain. So far the research has suggested that only the mental effects of memories may be reduced, not that the memories are erased.

The research has caused plenty of argument. Some think it is a bad idea, while others support it.

Supporters say it could lead to pills that prevent or treat soldiers’ troubling memories after war. They say that there are many people who suffer from terrible memories.

“Some memories can destroy(破坏) people’s lives. They come back to you when you don’t want to have them in a dream. They usually come with very sad feeling.” said Roger Pitman, a scientist of psychiatry at Harvard Medical School. “This could relieve(减轻) a lot of that suffering.”

But those who are against the research say that it is very dangerous to change memories because memories give us our identity(特质). They also help us all get away from the mistakes of the past.

“All of us can think of bad events in our lives that were terrible at the time but make us who we are. I’m not sure we want to erase those memories,” said Rebecca Dresser.

1.The passage is mainly about __________.

A．a new medical invention

B．a new research on memories

C．a way of erasing sad memories

D．an argument about the research on the pill

2.The drug tested on people can __________.

A．cause the brain to fix memories

B．stop people remembering their experiences

C．prevent body producing certain chemicals

D．erase the emotional effects of memories

3.The word “scars” in Paragraph One is close in meaning to _________.

A．good stories                           B．sad feelings

C．experiences                           D．memories

4.Which of the following does Rebecca Dresser agree with?

A．Some memories can destroy people’s lives.

B．People want to get away from bad memories.

C．Experiencing bad events makes us different from others.

D．The pill will reduce people’s sufferings from bad memories.

 

阅读理解

High in the mountains, and deep in the forest, lives a lake with many plants and animals in and around her. The plants and animals have enough food and clean water to keep them healthy. The wind carries pure air, and the rain comes down clear and clean.

But recently, Lucy Lake and her friends haven’t been feeling very well. All the plants and animals get together to talk about the problem. “Why are we sick?” “What can we do?” ask all of them. No one has any answers.

Just then two hikers appear. The animals tell them about their problems. “Can you help us?” they ask. “Yes,” one hiker says. “I think it’s because of acid rain.”

“Acid rain comes from chemicals(化学物质) in the air. The pollution comes from factories, cars and trucks.”

“So, although I don’t want to, I help the pollution travel through the air!” says the wind. “And I carry it to the land!” cries the rain. 

“If you can help us think of some solutions(解决方法), we will send a message to tell people how to clean up our environment,” one hiker says. 

With the help of the plants and animals, the two hikers make a list of ideas for saving Lucy Lake and her friends.

Time passes, and the forest and lake begin to feel a little better.

The next time the hikers climb up the mountains to Lucy Lake, they smile at what they find. “We’re glad things have started to change,” one hiker says. “And we’re glad you helped us make a difference,” says the other.

1.The underlined word “pure” can be replaced by “____”.

A．polluted

B．clean

C．cold

D．cool

2.The two hikers are most probably ____.

A．scientists

B．teachers

C．doctors

D．reporters

3.____ have (has) nothing to do with the cause of acid rain.

A．The rain

B．Human beings

C．The wind

D．The plants and animals

4.The underlined word “you” refers to (指) ____. 

A．Lucy Lake	B．the plants and animals
C．one of the two hikers	D．the wind and the rain

5.Which of the following is NOT true?

A．Acid rain is very harmful only to plants and animals.

B．Human activities are the main cause of acid rain.

C．Acid rain can make the living things in the environment get sick.

D．We should clean up our environment to protect us against acid rain.

 

NOT all memories are sweet. Some people -- all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars (伤痕).

Now American researchers think they are close to developing a pill, which will help people forget bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it might reduce, or possibly erase, the effect of painful memories.

In November, experts tested a drug on people in the US and France. The drug stops the body producing chemicals that fix memories in the brain (大脑). So far the research has suggested that only the emotional effects of memories may be reduced, not that the memories are erased.

The research has caused a great deal of discussion. Some think it is a bad idea, while others support it.

Supporters say it could lead to pills that prevent or treat soldiers' troubling memories after war. They say that there are many people who suffer from terrible memories.

"Some memories can destroy people's lives. They come back to you when you don't want to have them in a daydream or nightmare (噩梦). They usually come with very painful emotions," said Roger Pitman, a professor of psychiatry at Harvard Medical School. "This could relieve a lot of that suffering."

But those who are against the research say that changing memories is very dangerous because memories give us our identity (特质). They also help us all avoid the mistakes of the past.

"All of us can think of bad events in our lives that were horrible at the time but make us who we are. I'm not sure we want to wipe those memories out, "said Rebecca Dresser, a medical ethicist.

1.The passage is mainly about          

A．a new medical invention

B．a new research on the pill

C．a way of erasing painful memories

D．a discussion about the research on the pill

2.The drug tested on people can           

A．cause the brain to fix memories

B．stop people remembering bad experiences

C．prevent body producing certain chemicals

D．erase the emotional effects of memories

3.We can infer from the passage that            

A．people doubt the effects of the pills

B．the pill will stop people's bad experiences

C．taking the pill will do harm to people's health

D．the pill has probably been produced in America

4.Which of the following does Rebecca Dresser agree with?

A．Some memories can destroy people's lives.

B．People want to remove bad memories.

C．Experiencing bad events makes us different from others.

D．The pill will reduce people's sufferings from bad memories.