.
NOT all memories are sweet. Some people spend all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars. Often they relive these experiences in nightmares.
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(抹去) the effect of painful memories.
In November, experts tested a drug on people in the US and France. The drug stops the body releasing chemicals that fix memories in the brain. 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 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 ruin people’s lives. They come back to you when you don’t want to have them in a daydream or nightmare. They usually come with very painful emotions,” said Roger Pitman, a professor of psychiatryat 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
53．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．an argument about the research on the pill
54．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．wipe out t he emotional effects of memories
55．We can infer from the passage that .
A．people doubt t he 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
56．Which of the following does Rebecca Dresser agree with?
A．Some memories can ruin people’s lives.
B．People want to get rid of bad memories.
C．Experiencing bad events makes us different from others.
D．The pill will reduce people’s sufferings from bad memories.
.
第三节完形填空（共20小题，30分）
As China faced up to a battle against bird flu, the government announced a range of control measures it believed would bring the disease under control.
This bird flu 21 more than 16 people across Asia and was made certain in China in late January, 2008 No 22 cases had been found in the mainland but at least 13 of the country’s 31 provinces, autonomous regions(自治区) and municipalities had 23 the disease in poultry(家禽).
“It 24 a difficult task for China to prevent and control the disease, 25 the government is confident in the fight,” said a Vice-Minister of Agriculture. He gave details of a range of measures designed to 26 the disease spreading. Poultry within 3km of infected farms was to be killed and those within 5km vaccinated(接种疫苗). 27 , there would be constant monitoring(监控) and daily 28 on the disease across the country, and 29 production of bird flu vaccines.
Among the 11 Asian countries and regions 30 by bird flu in animals, only Vietnam and Thailand had reported human cases. The people infected were reported to have 31 the disease from poultry.
While the World Health Organization said there was 32 proof of human transmission(传播) of bird flu, it admitted that two sisters who died of bird flu in Vietnam 33 have caught it from their brother.
The big 34 was that the disease could combine with a human flu virus(病毒) to create a deadly 35 disease that would kill millions of people across the 36 . Many Asian farmers live close with their animals and sell 37 chickens on the market. This greatly increases the 38 of human being infected with bird flu.
An official from WHO said Asian countries affected by bird flu should introduce a more 39 way of raising and selling chickens. They have to completely 40 their lifestyle and attitude towards animals.
21．A．hurt B．hit C．struck D．killed
22．A．animal B．bird C．human D．poultry
23．A．shown B．reported C．struck D．said
24．A．remains B．leaves C．stays D．continues
25．A．but B．and C．while D．so
26．A．fight B．control C．keep D．stop
27．A．However B．Meanwhile C．Therefore D．Instead
28．A．controls B．treatments C．reports D．vaccines
29．A．started B．improved C．increased D．attempted
30．A．affected B．destroyed C．connected D．introduced
31．A．held B．covered C．carried D．caught
32．A．some B．much C．no D．more
33．A．should B．might C．must D．need
34．A．accident B．problem C．task D．flu
35．A．new B．strange C．serious D．bad
36．A．country B．area C．mainland D．globe
37．A．killed B．many C．dead D．live
38．A．speed B．possibility C．introduction D．experience
39．A．healthy B．useful C．simple D．gentle
40．A．stop B．change C．form D．keep
.
I have no idea________is better, so I took of them.
|
A．what; both |
B．what; none |
C．which; both |
D．which; none |
.
Animals suffered at the hands of man________they were destroyed by people to make way for agricultural land to provide food for more people.
|
A．in which |
B．for which |
C．so that |
D．in that |
.
Ten minutes earlier________we could have avoided the accident.
|
A．or |
B．but |
C．and |
D．so |
.
Let’s keep to the point or we________any decision.
|
A．will never reach |
B．have never reached |
|
C．never reach |
D．never reached |
