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A single night of taking the drug Ecstasy (摇头丸) can cause serious brain damage and speed up the start of Parkinson’s disease, scientists say. Just two or three Ecstasy tablets can permanently destroy brain cells that affect movement and reasoning, according to American research that links the drug to Parkinson’s for the first time.
A study by a team at Johns Hopkins University in Baltimore, Maryland, involving squirrel monkeys and baboons (狒狒) found that both species suffered permanent damage to key cells, which are lost in Parkinson’s, after receiving three low doses(剂量)of Ecstasy at three-hour periods.
The study is particularly important because baboons are one of the best animal models for the human brain. George Ricaurte, who led the research, said that the widespread abuse of drug might have caused severe damage. “The most troubling result is that young adults using Ecstasy may be increasing their risk of developing Parkinsonism as they get older.”
Alan Leshner, a former director of the US National Institute on Drug Abuse, said, “This study emphasizes the multi-aspect damage that Ecstasy causes to users. We’ve long known that repeated use damages brain cells. But this study shows that even very occasional use can have long-lasting effects on many different brain systems. It sends an important message to young people: don’t experiment with your own brain.”
Janet Betts, a mother whose teenage daughter Leah died after a single Ecstasy tablet in 1995, said, “This comes as no surprise. But people can’t see the effects at first, and they say it won’t happen to them. We’ll see the symptoms later, just as we have with smoking.”
小题1: The article is intended to ______.
A.explain the bad effects of drugs on people’s health
B.warn young people of the risk of taking the drug Ecstasy
C.persuade people out of such bad habits as smoking and using drugs
D.tell us the links between the drug Ecstasy and Parkinson’s disease
小题2: We know from the passage that a low dose of Ecstasy ______.
A.won’t cause serious brain damage
B.can permanently destroy one’s brain cells
C.will result in immediate symptoms
D.may bring on Parkinson’s at once
小题3:Why are squirrel monkeys and baboons involved in the experiments?
A.Because their brain is similar to human being’s.
B.Because these animals usually take drugs.
C.Because these animals will soon get well after the experiment.
D.Because there is a model in the animals’ brains.
小题4: The underlined word “This” in the last paragraph probably means that ______.
A.Leah died after a single Ecstasy tablet in 1995
B.taking drug has the same symptoms as smoking
C.occasional use of the drug can have long-lasting effects on the brain systems
D.people have long known that repeated use of the drug damages brain cells
小题1:B小题1:B小题1:A小题1:C
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科目:高中英语 来源:不详 题型:阅读理解

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This opportunity to escape the realities of everyday life is, I think, the main attraction of a bookshop. There are not many places where it is possible to do this. You can wander round such places to your heart's content. If it is a good shop, no assistant will disturb you with usual greetings, "Can I help you, sir?" Of course you may want to find out where a particular section is. Then, and only then, are his services necessary. However, when he has led you there, the assistant should retire carefully and look as if he is not interested in selling a single book.
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小题1:.
. Which may not be included in the writer's experiences while he is in a bookshop?
A.Getting relaxed without buying a book.
B.Quarrelling with the shop assistant.
C.Buying other books instead of those he wanted.
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小题2:.
. What does the writer mean by saying "time spent in a bookshop can be most enjoyable"?
A.You may free yourself from the real life.
B.Reading is free of charge there.
C.There is nobody disturbing you there.
D.You can enter without any certain reason.
小题3:.
What does the underlined wordengrossed most probably mean in the first paragraph?
A.Lost.B.Forbidden.C.Puzzled.D.Impressed.
小题4:.
. The writer wrote the passage in order to ________.
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科目:高中英语 来源:不详 题型:阅读理解

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THIS was the year the Earth struck back.
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A.earthquakes are happening more often because of human beings
B.earthquakes are causing more damage because of human beings
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B.give the details of some natural disasters of 2010
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科目:高中英语 来源:不详 题型:阅读理解

  The Andrew Romay Immigrant Support Program (ISP) at the International Center provides a welcoming place for immigrants where they can build the skills they need to fully participate in the professional and social life of their new country.
About the Program
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UPCOMING EVENTS
To see a list of upcoming events, visit our News & Events page.
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A.help new immigrants set up a home away from home
B.equip new immigrants with the skills needed
C.provide support for new immigrants in financial need
D.help old immigrants at a critical point
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A.visiting News & Events page
B.surfing Member Resources page
C.contacting Andrew
D.contacting Elaine
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科目:高中英语 来源:不详 题型:阅读理解

The Touchstone
When the great library of Alexandria burned, the story goes, one book was saved. But it was not a valuable book; and so a poor man, who could read a little, bought it for very little money.
The book wasn’t very interesting, but between its pages there was something very interesting indeed. It was a thin strip of vellum on which was written the secret of the “Touchstone”! The touchstone was a small pebble that could turn any common metal into pure gold.
The writing explained that it was lying among thousands and thousands of other pebbles that looked exactly like it. But the secret was this: The real stone would feel warm, while ordinary pebbles are cold.
So the man sold his few belongings, bought some simple supplies, camped on the seashore, and began testing pebbles. He knew that if he picked up ordinary pebbles and threw them down again because they were cold, he might pick up the same pebble hundreds of times. So, when he felt one that was cold, he threw it into the sea. He spent a whole day doing this but none of them was the touchstone. Yet he went on and on this way. Pick up a pebble. Cold - throw it into the sea. Pick up another. Throw it into the sea. Pick up another. Throw it into the sea.
The days stretched into weeks and the weeks into months. One day, however, about mid-afternoon, he picked up a pebble and it was warm. He threw it into the sea before he realized what he had done. He had formed such a strong habit of throwing each pebble into the sea that when the one he wanted came along he still threw it away.
So it is with opportunity. Unless we are careful, it’s easy to fail to recognize an opportunity when it is in hand, and it’s just as easy to throw it away.
小题1:The man bought the book because _____________.
A.he wanted to read itB.it was very interesting
C.there was a secret in the book D.he wanted to find the touchstone
小题2:We can learn from the passage that the touchstone is _________.
A.pureB.coldC.magicD.big
小题3:Why did the man throw the pebbles into the sea?
A.Because he didn’t want to get the same pebbles.
B.Because he didn’t want others to pick them up.
C.Because he didn’t like their ordinary looks.
D.Because he didn’t like the cold feelings.
小题4:What does the author want to tell us in the passage?
A.We should offer opportunities in our life.
B.We should seek for opportunities in the world.
C.We may seize opportunities when we are watchful.
D.We may discover opportunities when forming habits.

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科目:高中英语 来源:不详 题型:阅读理解

Running like the wind, roaring like thunder, tigers have long been feared and respected as a king of the animal world.But last week a report said that there are no more than 30 wild tigers left in south China.
This was the conclusion of a team of scientists from China's State Forestry Administration and the World Nature Fund.
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Sixty-six of the big cats can be found in the cages of a dozen zoos around China.But they are nothing like their wild cousins.They have lost their natural skills such as hunting and killing.If they were set free they could not look after themselves.
"Breeding has damaged the quality of the species", said Pei Enle, deputy director of the Shanghai Zoo.
To reintroduce the species into the wild, the country started a programme to send five to ten young tigers to South Africa.Four of them have already arrived.Progress has been made as two elder tigers have recovered some of their instincts(本能)and can hunt wild animals by themselves at the African base.
" South Africans are very experienced in reintroducing big animals to the wild.The country has very good natural conditions for the tigers to learn in", said Lu Jun, office director of the National Wildlife Research and Development Center." We tried in Fujian Province, but it was not successful as there was not a complete eco-chain(生物链) and there was a lack of space."
The tigers should return to China in 2007 when the reservations in Fujian are ready.
1.What is the main reason for the South China tiger becoming one of the world's top ten most endangered species?
A.Because it has lost its natural instincts.        B.Because there is not a complete eco-chain.
C.Because there is no space for it.                 D.Because uncontrolled hunting has destroyed its natural living conditions.
2.How is the programme of sending several tigers to South Africa getting on?
A.Its effect still remains to be seen.
B.Two tigers can already compete with their wild cousins.
C.Some of the tigers are already on the road to recovering their natural skills.
D.The tigers should be able to recover their instincts completely by 2007.
3.By saying " but they are nothing like their wild cousins", the writer means that ______.
A.they are no longer feared by other wild animals
B.they don't know how to hunt or kill
C.a complete change has resulted in the species because of breeding
D.to reintroduce them into the wild has become an urgent task
4.What is the purpose of sending young tigers to South Africa?
A.To help the tigers recover their ability to live in the wild.
B.To provide them with a better environment.
C.To get the tigers to go on a tour.
D.To find a complete eco-chain for them.
5.Which one is not the reason for South Africa being chosen as the training place?
A.Because the tigers can hunt wild animals by themselves at the African base.
B.Because South Africans are skilled at dealing with the tigers.
C.Because there is a complete eco-chain and enough space there.
D.Because the country has good natural conditions for the tigers to learn in. 

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