When people lose legs after accidents or illnesses, emergency care and artificial limbs(假肢)often allow them to walk again. Newts (蠑螈) in the same situation, on the other hand, can grow limbs back on their own! Scientists have known for a long time that certain animals can re-grow limbs, but they haven’t quite figured out how these creatures do it.
Researchers have now come up with some new ideas. Their work may give people the ability to re-grow lost limbs. The researchers started with two simple experiments:when you cut a newt’s leg at the ankle, only the foot grows back;when you cut off a leg at the very end, the whole leg grows back. In both cases, the re-growth begins with stem cells. Stem cells can develop into nearly any type of cell in the body.
How do a newt’s stem cells know when to grow only a foot and when to re-grow a whole leg?
This question relates to another mystery. In newt’s, a cut-off leg will grow back only if the nerve bundle(神經(jīng)束)in it also grows back , but if something prevents the nerve bundle from growing, the stem cells at the wound won’t re-grow a new leg.
In its study, a British team focused on a protein called n-AG. When the team prevented nerves in a limb from growing, but added the n-AG protein to stem cells in the limb, the limb still re-grew. That protein seems to guide limb re-growth. People have proteins that are similar to n-AG. Further research into these materials may someday help human limbs recover by themselves.
40. In the experiments, the researchers cut off a newt’s foot or leg to find out _____.
A. what stem cells were                    B. whether they would grow back
C. how long it would take to re-grow    D. how they would re-grow
41. A newt will re-grow its leg if _____.
A. its ankle was cut off but the nerve bundle was good
B. its leg was cut off and the nerve bundle stopped growing
C. its leg was cut off and the nerve bundle could grow back
D. its ankle and the nerve bundle were cut off
42. What do the underlined words “these materials” refer to?
A. Nerve bundles and proteins.         B. Proteins similar to n-AG.
C. Stem cells and proteins.              D. Stem cells and nerve bundles.
43. The first sentence of the passage _____.
A. acts as a lead–in                      B. shows where researchers got their new ideas
C. states the author’s opinion           D. describes the result of researchers’ studies
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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

No matter how long your life, you will, at best, be able to read only a few books of all that have been written, and the few you do read should include the best. You can rejoice in the fact that the number of such is relatively small.
________________ Yet there is a surprising uniformity in the lists which represent the best choices of any period. In every age, the list makers include both ancient and modern books in their selections, and they always wonder whether the moderns are up to the great books of the past.
What are the signs by which we may recognize a great book? The four I will mention may not be all they are, but they are the ones I’ve found most useful in explaining my choices over the years.
Great books are probably the most widely read. They are not best sellers for a year or two. They are enduring best sellers. GONE WITH THE WIND has had relatively few readers compared to the plays of Shakespeare or DON QUIXOTE. It would be reasonable to estimate that Homer’s Iliad(伊麗亞特)has been read by at least 25,000,000 people in the last 3000 years.
Great books are popular, not pedantic. They are not written by specialists about specialties for specialists. Whether they are philosophy or science, or history or poetry, they treat of human, not academic problems. They are written for men, not professors. To read a textbook for advanced students, you have to read an elementary textbook first. But the great books can be considered elementary in the sense that they treat the elements of any subject matter. They are not related to one another as a series of textbooks, graded in difficulty or in the technicality of the problems with which they deal.
Great books are always contemporary, the most readable and instructive.
Great books deal with the persistently unsolved problems of human life. There are genuine mysteries in the world that mark the limits of human knowing and thinking. Inquiry not only begins with wonder, but usually ends with it also. Great minds acknowledge mysteries honestly. Wisdom is fortified, not destroyed, by understanding its limitations.
64.Which of the following can be put in the blank in the second paragraph?
A.Great books deal with the persistently unsolved problems of human life.
B.It is to be expected that the selections will change with the times
C.The listing of the best books is as old as reading and writing.
D.The fundamental human problems remain the same in all ages.
65.According to the author, Gone With The Wind is ________.
A.a(chǎn) best seller                                               
B.disgusted by readers who like Shakespeare
C.read more often than Don Quixote        
D.a(chǎn) great book
66.In the passage “pedantic” means ________.
A.showing the feelings, esp, those of kindness, which people are supposed to have
B.serving as practical examples
C.being elementary
D.paying too much attention to details in books
67.The best title for this passage is ________.
A.Great Books in Your Life       B.Great Books in Your Speciality
C.How to Find a Great Book?    D.What Is a Great Book?

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

It came with devastating force,a natural disaster of strange intensity that shocked the world and killed tens of thousands.The waters have now receded,but disease and food and water shortages trouble a number of countries around the Indian Ocean.Millions of survivors face serious problems.
The number of survivors in need of food aid after the Indian Ocean disaster has climbed to 5 million people.They stretch from Somalia to Thailand,and the figure could rise further,the United Nations has said.
Relief teams hope to reach all of the estimated 700 000 hungry in Sri Lanka within three more days.It could take longer before enough food aid gets to the nearly 1 million people in need in hard-to-reach parts of Indonesia.Another serious problem is the need for purified water.
Although aid had poured in from all over the world to the disaster areas,“Logistics is the big problem here—just getting the stuff out to people who need it,”said Ron Libby,emergency management specialist at the USA agency for International Development.
Relief efforts are hindered by the difficulty of delivering aid to the more than 1000 islands scattered across hundreds of kilometers of ocean.
For those who survived the tsunami's force,disease is now the No.1 problem.Five million people are short of water,food and basic sanitation across the region.World Health Organization(WHO) crisis chief David Navarro said 50 000 more people could die from disease and other causes,as has been the case in previous humanitarian emergencies.
WHO said it had already received a handful of reports of malaria(瘧疾) and dengue fever(登革熱) and hundreds of reports of diarrhea(腹瀉) and infected wounds.It said millions of water purification tablets had been sent to Asia,along with sanitation engineers to rebuild water sanitation infrastructure.
Psychologists are warning that mental health problems caused by the tsunami could prove harder to resolve than the physical damage.
Some survivors say they are plagued by recurring nightmares about walls of water.Many locals are afraid to return to beachside homes.Officials also warn that suicide rates could rise dramatically as parents struggle with guilt at losing children.
Psychologists estimate that 20 to 30 per cent of people who face traumatic events eventually develop symptoms,such as alcohol abuse,lack of concentration at work and an inability to develop close relationships.
Although the Thai Government has offered to build temporary beachside housing,many refugee families are refusing to come down from the hills.Others are afraid to go back to jobs on the sea.
Over 150 000 people were killed by the tsunami,but hundreds and thousands more have been left with no means to earn a living.
In the village of Akirapettai in India,all that is left is the twisted wreckage of the fishing fleet.Dakshina Murti,a fisherman,not only lost three family members,but also lost his boats,his nets,everything.
“Everything's gone,”he says.With no government aid so far,all he has is a wreck.There are several million people who suffered the same experience.Homes have been destroyed,as well as wharves,docks,and sheds.
For now,rebuilding the economy remains a distant concept.
小題1:This passage is mainly about _________that happened around the Indian Oceans.
A.the causes of the tsunamiB.the result after the tsunami
C.the sign of the tsunamiD.the warning of the tsunami
小題2:According to what the United Nations has said,the number of survivors in need of food aid after the disaster _________.
A.is not more than 5 millionB.is less than 5 million
C.has reached 5 millionD.won't reach 5 million
小題3:From the passage we learn that _________ is the most serious problem for the time being.
A.diseaseB.foodC.waterD.house
小題4:The passage tells us that such a disaster,as tsunami will cause diseases and _________ as well.
A.Dengue feverB.diarrheaC.MalariaD.mental health problem

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing, but it can give a false sense of security.
New research shows long-term sleep loss cannot be cured that easily. Scientists researched the effects of short- and long-term sleep loss and found that those who suffer long-term sleep loss may function normally soon after waking up, but experience steadily slower reaction times as the day goes by, even if they had tried to catch up the previous night.
The research has important safety significances in an increasingly busy society, not just for shift-workers but for the roughly one in six Americans who regularly get six hours or less of sleep a night.
“We know that staying awake 24 hours without sleep will affect your performance to do all sorts of things, and this effect equals to drinking too much when driving,” said lead researcher Dr. Daniel Cohen of Boston’s Brigham and Women’s Hospital. But when those who suffer long-term sleep loss become all-nighters, “the harm is increased ten times,” Cohen said.
The National Institutes of Health says adults need seven hours to nine hours of sleep for good health. Regularly getting too little sleep increases the risk of health problems, including memory impairment and a weakened immune system. More immediately, too little sleep affects reaction times; sleepiness is to blame for car crashes and other accidents.
It has critically important complicated and unexpected results for anyone who works “crazy hours” and thinks they are performing fine with a few hours of weeknight sleep, said Harris, director at New York’s Montefiore Medical Center. “Don’t think you can just bank up your sleep on the weekend, because it doesn’t work that way,” he warned.
小題1:The text mainly advises people ______.
A.to sleep more timeB.to sleep in on Saturday
C.to sleep scientifically D.to sleep little on weekend
小題2:People with long-term sleep loss ______.
A.a(chǎn)re quicker in thinkingB.may feel refreshed soon after waking up
C.a(chǎn)re surely energeticD.can have a strong sense of security
小題3:What can we learn from the text?
A.Most of the Americans get six hours or less of sleep a night.
B.Staying up is worse for those who suffer long-term sleep loss.
C.Traffic accidents have little to do with sleepiness.
D.One in six Americans are all-nighters.
小題4:Which of the following is the immediate effect of long-term sleep loss?
A.Health problemsB.Immune system
C.Reaction timesD.Memory impairment
小題5:The underlined phrase “bank up” in the last paragraph most probably means ____.
A.pile upB.pick upC.a(chǎn)dd upD.build up

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


NEW YORK (Reuters Health)--Two years after New York City declared war on artificial trans fats(人造反式脂肪酸), nearly all city restaurants had successfully cut the fats from their menus, health officials reported Monday.
In December 2006, the city’s Board of Health decided to launch a gradual trans-fat phase-out (逐步淘汰)from all licensed eating establishments--including restaurants, school cafeterias and street vending spots. Then many cities like Washington, San Francisco and Philadelphia, reflected it actively.
By November 2008, more than 98 percent of city restaurants had stopped using artificial trans fats for cooking, frying and baking, researchers with the city’s health department report in the Annals of Internal Medicine.
Trans fats have become notorious because they not only raise so-called “bad” LDL cholesterol (膽固醇), as the fats in animal products do, but also lower levels of so-called “good”HDL cholesterol.
While some meats and dairy products naturally contain trans fat, most trans fats in people’s diet are artificial; they are formed when manufacturers add hydrogen to vegetable oil to make it become solid. These so-called partially hydrogenated oils were main products in foods, like crackers, cookies and pastries, and widely used by restaurants in cooking, frying and baking.
When the restriction was first adopted, the researchers note, some critics claimed it was an Orwellian measure, while others worried that restaurants would have a tough time finding suitable trans-fat replacements.                                                     
However, the transition has been smooth, Angell’s team writes, declaring that trans-fat restriction “is now a largely unnoticed part of New York City life.”
Ridding the food supply of trans fats, the researchers write, could potentially improve the cholesterol levels of millions of people.
1. In which city the local health department first decide to stop artificial trans fats?
A. Washington.    B. San Francisco.     C. Philadelphia.      D. New York.
2. We can learn from the third paragraph that ________.
A. in the city most people still use artificial trans fats
B. only a few restaurants still use trans fats and the decision win most people’s support
C. the city’s decision proves to be useless
D. many people think using artificial trans fats is not so bad
3. The underlined word “notorious” in the fourth paragraph means ________.
A. having a very bad reputation          B. having a very good reputation
C. nutritious                         D. delicious
4. What is the main idea of the passage?
A. New York restaurants are nearly all trans-fat-free (無(wú)……有)
B. None of the restaurants in the U.S can use trans fats.
C. Most of the restaurants still use trans fats once in a while.
D. Trans fats are bad for health.

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

      For as long as I can remember, I have been very bad at arguing with people. As soon as someone disagrees with me, I get angry because I feel attacked, like the other person is out to show that I am wrong. And for some reason, I hate being wrong! So my immediate reaction is to get very defensive, I raise my voice, and I end up saying something I later regret. Needless to say, the whole thing ends with me beating myself up, and the other person feeling alienated (疏遠(yuǎn)) from me. This bothers me especially because my mother does the exact same thing and I hate it!
I have noticed this tendency in me for a long time now, but I have never been able to stop. I did some anger management work with a therapist (治療專家) a while ago, but because I moved and turned to an advisor at school who cannot see me regularly, I have not been able to continue this important work. They tell you to stop and count to 10, control your breathing, calm yourself down before you talk. But that's the whole problem, I could never think of stopping myself until it was too late! The hurtful things had already come out of my mouth, and I was stuck picking up the pieces.
Right now the problem is urgent because my relationship with a wonderful boyfriend is in danger because of my insecurity and hatred of being wrong. He is closing himself off to me because I have hurt him, and no doubt I am no longer attractive as a woman with no confidence in herself and a bad temper. How do I stop ruining my relationships and hating myself? How do I stop hating being wrong?
67. In what situation will the writer get angry easily?
A. When she has argument with people.
B. When people disagree with her.
C. When she is attacked.
D. When she does something wrong.
68. What does the underlined part in the first paragraph mean?
A. My mother disagrees with me.
B. My mother alienates herself from me.
C. My mother has the same problem with me.
D. My mother does the same wrong to me.
69. In the second paragraph, what does the underlined word "tendency" refer to?
A. Being bad at arguing with people.
B. Hating being wrong.
C. Being lost to others.
D. Hating my mother.
70. We can infer from the third paragraph that
A. the writer feels helpless with her problem
B. the writer finds it hard to count from one to ten
C. the writer has received effective advice about her problem
D. the writer is under the treatment of a therapist
71. What did the writer imply in the last paragraph?
A. She is closing herself off to her boyfriend.
B. She is much hurt by her boyfriend.
C. Her boyfriend has broken up with her.
D. She has to solve her problem in no time.

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

 
C
New York City was dealing with a growing public health threat Sunday after tests confirmed (證實(shí)) that eight students at a private Catholic high school had contracted(感染)the same strain of the AH1N1 flu that has ravaged (重創(chuàng)) Mexico . Some of the school’s students had visited Cancun on a spring break trip two weeks ago .
Officials reported 68 U.S. cases of AH1N1 flu in five states so far , with the latest in Ohio and New York . Unlike in Mexico , cases in the United State have been mild – and U.S. health authorities can’t yet explain why .
In New York City , Centers for Disease Control and Prevention confirmed that there were 45 cases , Mayor Michael Bloomberg said .
About 100 students at St. Francis Preparatory School complained of flu-like symptoms(癥狀) ; further tests will determine how many of those cases are AH1N1 flu. St. Francis is the largest private Catholic high school in the nation , with 2, 700 students . The school canceled classes on Monday and Tuesday in response to the outbreak .
Bloomberg stressed that the New York cases were mild and many are recovering , but said that some family members of students also had flu symptoms .
In Mexico , health officials say a strain of AH1N1 flu has killed up to 160 people and sickened over 2, 000 . New York officials said the flu strain discovered in the patients here is the same strain as in Mexico , though all the New York cases are mild .
AH1N1 flu is a respiratory (呼吸道) disease of pigs caused by type A flu viruses . Human cases are uncommon but can occur in people who are around pigs . It also can be spread from person to person . Symptoms include a high fever , body aches , coughing , sore throat and respiratory congestion .
49.The passage seems to suggest that _________ .
New York City hasn’t done enough to prevent the disease
the AH1N1 flu in the U.S. likely came from Mexico
people appear to have immunity (免疫力) to the virus
children are likely to be infected with the AH1N1 flu
50. What did St. Francis do in response to the outbreak ?
A. The school called off courses .
B. The school handed out masks to every student .
C. The school planned another trip to Cancun .
D. The infected students were required to stay at home .
51.Compared with cases in the U.S. cases in Mexico are _________ .
A. milder      B. more typical     C. more severe      D. more gentle
52. Which is the main idea of the article ?
A. AH1N1 flu is spreading quickly globally .
B. Many people died of AH1N1 flu in Mexico
C. How does AH1N1 flu spread ?
D. AH1N1 flu is confirmed in New York City

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Cancer researchers urged people on Wednesday to take more vitamin D to lower risk of cancer, saying studies showed a clear link. “Our suggestion is for people to increase their intake (吸入,攝入), through diet or a vitamin supplement,” Dr. Cedric Garland said in a telephone interview.
Garland's research team reviewed 63 studies, including several large long-term ones, on the relationship between vitamin D and certain types of cancer worldwide between 1966 and 2004. “There's nothing that has this ability to prevent cancer,” he said, urging governments and public health officials to do more to fortify (增強(qiáng)) foods with vitamin D. Garland is part of a University of California at San Diego Moores Cancer Center team that published its findings this week online in the American Journal of Public Health. Vitamin D is found in milk, as well as in some fortified orange juice, yogurt and cheeses, usually at around 100 international units(IU)a serving. “People might want to consider a vitamin supplement to raise their intake to 1000 IUs per day” Garland said, adding that it was well within the safety guidelines established by the National Academy of Sciences.
The authors said that taking more vitamin D could be especially important for people living in northern areas, which receive less vitamin D from sunshine.
“African Americans, who don't produce as much of the vitamin because of their skin colour, could also benefit significantly from a higher intake,” the authors said.
61. According to the passage, people are advised to take more Vitamin D, because__.
A. it is nutritious             B. it can‘t harm people’s health
C. it can lower cancer risk      D. it is not taken enough every day
62. Which of the following can not help people get more Vitamin D?
A. Have some sunshine        B. Have more meat
C. Have more fortified cheese   D. Have a vitamin supplement
63.Who can Garland probably be?
A. A health researcher        B. A doctor   
C. A scientist               D. A public health official
64.Which of the following food can lower people‘s chance of getting cancer?
A. Milk                    B. Fortified orange juice
C. Fortified yogurt           D. All of the above
65.People from which area should take more Vitamin D according to the passage?
A. Asian people               B. African people 
C. American people            D. European people

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科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


D        
"In only six days I lost seven pounds of weight. "
"Two full inches in the first three days!"
These are the kinds of statements used in magazine, newspaper, radio and television ads, promising new shapes and new looks to those who buy the medicine or the device. The promoters of products say they can shape the legs, slim the face, smooth wrinkles, or in some other way to add to beauty or desirability.
Often such products are nothing more than money-making things for their promoters. The results they produce are questionable and some are dangerous to health.
To understand how these products can be legally promoted to the public, it is necessary to understand something of the laws covering their regulation. If the product is a drug, FDA(Food and Drug Administration )can require proof (證明) under the Food, Drug, and Cosmetic Act that is safe and effective before it is put on the market. But if the product is a device, FDA has no authority to require premarketing proof of safety or effectiveness. If a product already on the market is a danger to health. FDA can request the producer or distributor to remove it from the market voluntarily, or it can take legal action, including seizure (查封) of the product.
One notable case a few years ago involved an electrical device called the Relaxacisor, which had been sold for reducing the waistline. The Relaxacisor produced electrical shocks to the body through contact pads. FDA took legal action against the distributor to stop the sale of the device on the grounds that it was dangerous to health and life.
Obviously, most of the devices on the market have never been the subject of court proceedings (法律訴訟),and new devices appear continually. Before buying, it is up to the consumer to judge the safety or effectiveness of such items.
71. It can be inferred that the ads mentioned in the text are        .
A. objective    B. costly    C. unreliable    D. illegal
72. Which of the following is true according to the text?
A. The court is in charge of removing dangerous products.
B. New products are more likely to be questionable.
C. The production of a device must be approved by FDA.
D. The promoters usually just care about profits.
73. FDA can ask for the proof of safety and effectiveness of a product        .
A. if it is a drug      
B. if it is a device
C. if its consumers make complaints
D. if its distributors challenge FDA's authority
74. The Relaxacisor is mentioned as        .
A. a product which was designed to produce electricity
B. a product whose distributor was involved in a legal case
C. a successful advertisement of a beauty product
D. an example of a quality beauty product
75. The author intends to        .
A. make consumers aware of the promoters' false promises
B. show the weakness of the law on product safety
C. give advice on how to keep young and beautiful
D. introduce the organization of FDA

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