EveryAmericanfamilyhasitsowntr-优题课

Dogs are known for their sense of smell．They can find missing people and things like bombs and illegal drugs．Now a study suggests that the animal known as man’s best friend can even find bladder（膀胱）cancer．
Cancer cells are thought to produce chemicals with unusual odors（气味）．Researchers think dogs have the ability to smell these odors, even in very small amounts, in urine（尿）．The sense of smell in dogs is thousands of times better than in humans．
The study follows reports of cases where, for example, a dog showed great interest in a growth on the leg of its owner．The man was later found to be skin cancer．Carolyn Willis led a team of researchers at Amersham Hospital in England．They trained different kinds of dogs for the experiment．The study involved urine collected from bladder cancer patients, from people with other diseases and from healthy people．Each dog was tested 8 times．In each test there were 7 samples for the dogs to smell．The dog should signal the one from a bladder cancer patient by lying down next to it．Two cocker dogs were correct 56 percent of the time．But the scientists reported an average success rate of 41 percent．The British Medical Journal published the research．In all, 36 bladder cancer patients and 108 other people took part．During training, all the dogs reportedly even identified（认出）a cancer in a person who had tested healthy before the study．Doctors found a growth on the person’s right kidney（肾）．Carolyn Willis says dogs could help scientists identify the combined chemicals produced by bladder cancer．That information could then be used to develop machines to test for the chemicals．The team also plans to use dogs to help identify markers for other kinds of cancer．
49．What’s the general idea of the text?
A．Dogs have a good sense of smell B．Dogs can help cure cancer
C．Dogs can smell cancer D．Dogs help perform experiments
50．According to the text, people who suffer bladder cancer_____
A．often have urine with unusual smell B．probably smoke cigarettes in their life
C．can easily make dogs lie down
D．are likely to die within nine years
51．The underlined word “involved” in the text is closest in meaning to _____．
A．showed B．used C．proved D．preferred
52．What can we conclude from the last paragraph?
A．Dogs can only smell bladder cancer．
B．Dogs have a good knowledge of cancer．
C．Cancer doesn’t have any sign in the beginning．
D．Scientists might invent some equipment to test cancer．

第二部分阅读理解（共两节，满分40分）
（共15小题；每小题2分，满分30分）
阅读下列四篇短文，从每小题后所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该选项涂黑。
Cao Min couldn’t believe she was experiencing exactly what she had seen years ago in the film “Titanic”．
Cao and her two children from Anhui Province were traveling on board the “Liaoludu 7” on February 22．They were among the first people on the ship who were rescued by lifeboats．Cao’s one-year-old son was the youngest passenger on board．
The “Liaoludu 7” was traveling in the Bohai Straits from Lvshun in Liaoning Province to the port city of Longkou in Shandong Province．It suddenly lost its power at 2:30 pm and tilted（倾斜）on its side．With 81 people on board, the ferry（渡船）began to sink．
“I was so scared that my legs couldn’t move forward．They kept shaking even when I was asked to jump onto a lifeboat,” Cao recalled．
Upon receiving the may•day appeal（紧急呼救）, China Marine Search and Rescue Centre immediately informed the State Council．The center sent eight lifeboats to the sinking ship and asked for help from the Ministry of Agriculture, the Navy and nearby fishing boats．
After more than four hours of fighting strong winds and freezing ocean water, the passengers were rescued．All but four survived．These four died after spending too long time in the freezing waters, according to a spokesperson for the Beijing-based center．
46．According to the passage, which of the following is TRUE?
A．The film “Titanic” had been on show again in Shanghai．
B．Cao’s two-year-old son was the youngest passenger on board．
C．“Liaoludu 7” with all passengers on board survived．
D．The ferry began to sink on the way to the port of Shangdong Province．
47．The underlined word “scared” in paragraph 4 means “__________” in English．
A．anxious B．unfortunate C．frightened D．disappointed
48．From the passage we can infer that __________．
A．China Marine Search and Rescue Centre quickly carried out the rescue task
B．the center sent eight lifeboats and asked for help from the United Nations
C．the passengers were fighting strong winds and freezing ocean water for one hour
D．the ferry sank into the sea immediately it tilted on its side at 2:30 pm

When Toyota’s president, Akio Toyoda, apologized for the recalls that have harmed Toyota’s reputation, he talked not just about his company’s fate, but also his nation’s.
“I hope to return Toyota to profit and contribute to the revitalization of Japan,” he said.
Once a leading symbol of Japan’s rise to global economic might, Toyota has become one of the most obvious signs of its decline. And even before the recalls, Japan’s rivals(竞争对手) from South Korea and China had started overtaking Japan in key industries from semi－conductors to flat-panel televisions. And Toyota on Tuesday issued another damaging recall, this time of its popular Prius car.
“At this rate, Japan will sink into the sea,” said Masatomo Tanaka, a professor at the Institute of Technologists. “If Toyota is not healthy, then Japan is not healthy.”
Many economists and business leaders say they hope that Toyota’s trouble will be the wake – up call that Japan needs to understand that its reliance on manufacturing(制造业) and industrial exports, which served the country so well after World War II, is no longer wise.
Yukio Noguchi, a professor of finance at Waseda University in Tokyo, said Japan must finally step into a post - industrial, service-based economy — a painful shift that the United States and Great Britain underwent in the 1980s. Others said Japan should focus on high-end, high-profit products, like robots and fuel cells, rather than mass-produced goods subject to quality-control issues.
“Even Toyota can fail. Even Lexus, even Prius,” said Mr. Noguchi. “Our world-leading manufacturing industry may no longer world-leading. This has a strong impact on the national psyche.”
According to the Cabinet Office, manufacturing accounted for 22% of Japan’s entire economic output in 2008, down from 28% in 1990. however, manufacturing’s share of the economy still remains far above the level of 12% in the US. And few economists or journalists here advocate abrupt shifting. Rather, the feeling is that Japan needs to find a new balance by replacing its traditional industries with more information technology and software industries in which it is weak.
Yet this shift will be hard for Japan, where many policy makers and experts still seem to cling to the old model of heavy industries and consumer goods. If Japan can pull it off, it could serve as a model for other export – dependent Asian nations, which will also eventually face the same choice.
“I hope that Toyota will change our way of looking at our economy,” Mr Noguchi said. “We cannot survive if we continue to stick to the old type of industries.”
67．Since the Second World War, have been contributing much to Japan’s economy.
A．high – end and high – profit products like robots and fuel cells
B．manufacturing and industrial exports
C．information technology and software industries
D．industries from semi – conductors to panel – televisions
68．Which of the following statements is TRUE according to the passage above?
A．Few Japanese economists advocate a rapid shift into a service – based economy.
B．Most journalists in Japan advocate an abrupt change into a post – industrial economy.
C．Many economists hold that it is too early for Japan to shift into a service – based economy.
D．No Japanese reporters think it high time for Japan to step into a post – industrial economy.
69．The underlined part “cling to” probably means in the passage.
A．hold on to B．keep up with C．turn to D．pick up
70．From the passage we know the way out for Japan to get itself free from its decline consists in
.
A．keeping up its reliance on manufacturing
B．continuing to focus on its industrial export
C．speeding up its shift into a post – industrial economy
D．increasing its manufacturing

An analysis by Mount Sinai researchers of over eight years of dietary data from more than 400,000 people has found that the relationship between high consumption of fruits and vegetables and a reduced risk of cancer is not as strong as commonly thought. The study is published online April 6, 2010 in the Journal of the National Cancer Institute. It is widely believed that a diet rich in fruits and vegetables can reduce the risk of cancer. In 1990, the WHO recommended eating five servings of fruits and vegetables a day to prevent cancer and other diseases. However, although many studies have been conducted since then, none have been able to confirm an association between fruit and vegetable intake and cancer resistance.
Paolo Boffetta, MD, MPH, lead author of the study and Deputy Director of The Tisch Cancer Institute at Mount Sinai School of Medicine, and colleagues analyzed data from the EPIC study to evaluate relationships between cancer risk and intake of total fruit and vegetables combined.
The EPIC followers, which are ongoing and organized by professor Elio Riboli at Imperial College in London, included 142,605 men and 335,873 women surveyed between 1992 and 2000 from 10 Western European countries. Detailed information on their dietary habits and lifestyle differences was obtained. After 8.7 years of follow – up, more than 30,000 of the study's participants were diagnosed with cancer.
Dr. Boffetta and colleagues found a small but significant opposite relationship between high intake of fruits and vegetables and overall cancer risk. In this population, an increase of 200 grams a day of fruits and vegetables resulted in a reduction of about 3 percent of cancer risk. Vegetable consumption by itself also afforded a modest benefit but was restricted to women. Heavy drinkers who ate many fruits and vegetables had a somewhat reduced risk, but only for cancers caused by smoking and alcohol.
"The bottom line here is that, yes, we did find a protective effect of fruit and vegetable intake against cancer, but it is a smaller connection than previously thought," said Dr. Boffetta. "Any cancer protective effect of these foods is likely to be modest, at best.
"However, eating fruits and vegetables is beneficial for health in general and the results of this study do not justify changing current recommendations aiming at increasing intake of these foods," said Dr. Boffetta.
63．A new study shows that .
A．eating fruits and vegetables is beneficial to health
B．a diet rich in fruits and vegetables can reduce the risk of cancer
C．eating five servings of fruits and vegetables a day can prevent cancer and other diseases
D．the association between fruit and vegetable intake and cancer resistance is small
64．Before this study, people would believe that.
A．high intake of fruits and vegetables can prevent cancer and other diseases
B．heavy drinkers have the slightest chance of cancer
C．the WHO’s recommendations were modest
D．the WHO’s recommendations aim at increasing intake of fruits and vegetables
65．The population who took part in this study amounted to .
A．142,605 B．335,873 C．more than 400,000 D．30,000
66．From this study, we can infer that .
A．the intake of fruits and vegetables will be no longer necessary
B．the connection between fruits and vegetables intakes and cancer resistance is smaller than originally thought
C．taking in fruits and vegetables will still be appreciated in spite of the new discovery
D．any cancer protective effect of these foods is likely to be modest

It is love that makes the world go round. And it is also love that has such power to overcome all difficulties. So we say: “Love will find a way.” As smile is a facial expression showing pleasure, affection, and friendliness, it is the commonest way to show our good will perfectly without saying anything. A Chinese saying runs: “never hit a person who is smiling at you.” It is a time-proven fact that the smile is a language all its own— a universal language—understood by the people of every nation in the world. We may not speak the same tongue as our foreign neighbors, but we smile in the same tongue. We need no interpreter for thus expressing love, happiness, or good will.
One day while shopping in a small town in southern California, it was my misfortune to be approached by a clerk whose personality contradicted mine. He seemed most unfriendly and not at all concerned about my intended purchase. I bought nothing, and marched angrily out of the store. My anger toward that grew with each step. Outside, standing at the corner, was a dark-complexion young man in his early twenties. His expressive brown eyes met and held mine, and in the next instant a beautiful, dazzling smile covered his face. I gave in immediately. The magnetic power of that shining smile drove away all bitterness within me, and I found the muscles in my own face happily responding. “Beautiful day, isn’t it?” I remarked, in passing. The, suddenly something inside me sent me turning back. “I really owe you a debt of gratitude,” I said softly. His smile deepened, but he made no attempt to answer. A Mexican woman and two men were standing nearby. The woman stepped forward and eyed me inquiringly. “Carlos, he no speak English,” she volunteered. “You want I should tell him something?” In that moment I felt transformed. Carlos’ smile had made a big person of me. My friendliness and good will to ward all mankind stood ten feet tall. “Yes,” my reply was enthusiastic and sincere, “tell him I said ‘Thank you!’” “Thank you?” The woman seemed slightly puzzled. I gave her arm a friendly pat as I turned to leave. “Just tell him that,” I insisted. “He’ll understand. I am sure!” Oh, what a smile can do! Although I have never seen that young man again, I shall never forget the lesson he taught me that morning.
From that day on, I became smile – conscious, and I practice the diligently, anywhere and everywhere, with everybody. When I got excited in traffic, taking the right – of – way (公路用地) from the other car with my stupid mistake, I’d smile and shrug my shoulders apologetically. This action on my part would always draw a good – natured smile in return. If the other fellow was at fault – and if I could remember my resolution in time! – he’d get a broad smile of understanding. This took a bit of doing at first. I’ll admit it wasn’t always easy, but it was fun. The results were sometimes amazing. Many times, a broad, friendly smile would completely turn aside ill – feeling and tension. I’m wondering now how many tragic add dents could be avoided on our overcrowded highways, if every driver remembered to smile!
59．The author got angry while shopping one day because .
A．of the clerk’s unfriendliness and lack of concern
B．of her misfortune
C．she failed to purchase what she intended
D．a dark – complexion young man laughed at her
60．From the conversation between the author and the Mexican woman, we can infer that the woman .
A．was well – educated but unwilling to help others
B．was able to speak English
C．knew some English and was ready to help others
D．was familiar with the young man
61．In the author’s opinion, if all people remembered to smile when driving, .
A．many traffic accidents could be avoided
B．they would receive a good natural smile in return
C．they could get a broad smile of understanding
D．they wouldn’t feel any tension
62．The best title for this passage could be .
A．The Art of Smiling B．The Universal Language
C．The Power of Love D．The Magic Power of Friendship

A．watching a movie	B．making visits
C．having a big meal	D．watching football

A．He is too thankful to say a word.	B．His mind is on the food before him.
C．He feels too excited to speak.	D．He is shy to speak in public.