听力题The dog has often been an unselfish friend to man

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听力题Canada is located in northern North America

听力题M: Hello

听力题Questions 8 to 11 are based on the conversation you have just heard

听力题The word laser stands for "light amplification by stimulated emission of radiation". To many people lasers are very (36) ___________, but a laser is simply a (37) ___________that produces a very strong light. The light from a laser is called (38) ___________ light because it is light that moves in only one direction. In contrast, incoherent light, like the light form the sun or a light , (39) ___________, moves away from its (40)___________in all directions and (41) ___________in a narrow beam. As soon as the laser was developed, scientists began thinking of practical (42)___________for it. One of the earliest uses was to make extremely (43)___________measurements of distance and speed. As time passed, many more applications for the laser were developed. (44)______________________________. From laser printers to technology by which whole encyclopedias of information can be stored on a laser disk (called a CD-ROM) and read by a computer, lasers are revolutionizing computers. Lasers have also made a big difference in the way telephones work. Instead of changing sound waves to electricity that travels through copper wire, (45) _________________________________. One such fiber can carry more than a million conversations at the same time! (46)_____________________________________.

听力题 The university was asking students to select summer social topics for projects to undertake. Ding Ling proposed the idea of accessing the AIDS town, and university officials approved the project. After contacting officials at the institution, Ding Ling got on the train for her hometown with fellow student Zhou Wang on July 20. On July 21, when the two girls finished breakfast in a small restaurant after they had just arrived at the town, the keeper told Ding in a low voice that the man who ate breakfast beside her was an AIDS patient, which surprised the two. AIDS was all around them. AIDS patients in their hometown live just as anyone else does. They do not stay in any one centralized place to receive treatment. If they need help, they go to the medical institution just like any other patient world. There are no divorce cases in the town because of HIV infections, and local residents do not discriminate the HIV carriers, the two girls said. The students said their most unforgettable day was July 16, when they had the lunch with a female AIDS patient whose husband knew of her illness before they were married. But her husband still resolutely loved her and took on the responsibility of looking after his wife. After the pair returned to school, many friends urged them to go to the hospital to check whether they had been infected or not. They just smiled, declining to be checked. HIV can only be spread by sexual contact or blood-to -blood contact. The biggest wish for Ding is to see an 8-year-old child, Huan Huan, who was infected by her mother, during upcoming Spring Festival. She hopes to bring the little girl some clothes and food, and to take along a camera to record happy moments in the lives of AIDS patients. The university was asking students to select summer social topics for projects to undertake. Ding Ling proposed the idea of accessing the AIDS town, and university officials approved the project. After contacting officials at the institution, Ding Ling got on the train for her hometown with fellow student Zhou Wang on July 20. On July 21, when the two girls finished breakfast in a small restaurant after they had just arrived at the town, the keeper told Ding in a low voice that the man who ate breakfast beside her was an AIDS patient, which surprised the two. AIDS was all around them. AIDS patients in their hometown live just as anyone else does. They do not stay in any one centralized place to receive treatment. If they need help, they go to the medical institution just like any other patient world. There are no divorce cases in the town because of HIV infections, and local residents do not discriminate the HIV carriers, the two girls said. The students said their most unforgettable day was July 16, when they had the lunch with a female AIDS patient whose husband knew of her illness before they were married. But her husband still resolutely loved her and took on the responsibility of looking after his wife. After the pair returned to school, many friends urged them to go to the hospital to check whether they had been infected or not. They just smiled, declining to be checked. HIV can only be spread by sexual contact or blood-to -blood contact. The biggest wish for Ding is to see an 8-year-old child, Huan Huan, who was infected by her mother, during upcoming Spring Festival. She hopes to bring the little girl some clothes and food, and to take along a camera to record happy moments in the lives of AIDS patients.

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听力题 How many teeth have you had filled in the past two years? If you follow the advice of Dr. Faustick, you may be able to reduce the number of your visits to a dentist. Dr. Faustick conducted a two-year survey to find out how to prevent or reduce dental decay. 946 students took part in an experiment. 523 students cleaned their teeth within ten minutes of eating. When possible they used a toothbrush; when this was impossible they washed their mouth with water. The remaining 423 students merely cleaned their teeth when they went to bed and when they got up in the morning. All the students had their teeth X-rayed at the end of the first and second year. At the end of the first year, the night and morning group had three times as many decayed teeth as the clean-after-each-meal group. At the end of the second year the latter group had 53 percent fewer decayed teeth than the former group. Dr. Faustick has cleaned his teeth after a meal for 13 years and has not had a single decayed tooth. He pointed out that sugar is a major agent in dental decay, especially the sugar in sweets, cakes, and soft drinks. Ideally you should keep a toothbrush in your pocket and use it immediately after you have finished eating. When this is impractical you can at least make sure that you have a drink of water and let the water through your teeth to force out any particles of food. Seven out of ten people loose at least half of their teeth by the time they are 50. Many have a complete set of false teeth by that time. In any case neither toothache nor a visit to a dentist is very pleasant. So it is worthwhile making an effort to keep your own teeth as long as possible. The main preventative agent is simply water. How many teeth have you had filled in the past two years? If you follow the advice of Dr. Faustick, you may be able to reduce the number of your visits to a dentist. Dr. Faustick conducted a two-year survey to find out how to prevent or reduce dental decay. 946 students took part in an experiment. 523 students cleaned their teeth within ten minutes of eating. When possible they used a toothbrush; when this was impossible they washed their mouth with water. The remaining 423 students merely cleaned their teeth when they went to bed and when they got up in the morning. All the students had their teeth X-rayed at the end of the first and second year. At the end of the first year, the night and morning group had three times as many decayed teeth as the clean-after-each-meal group. At the end of the second year the latter group had 53 percent fewer decayed teeth than the former group. Dr. Faustick has cleaned his teeth after a meal for 13 years and has not had a single decayed tooth. He pointed out that sugar is a major agent in dental decay, especially the sugar in sweets, cakes, and soft drinks. Ideally you should keep a toothbrush in your pocket and use it immediately after you have finished eating. When this is impractical you can at least make sure that you have a drink of water and let the water through your teeth to force out any particles of food. Seven out of ten people loose at least half of their teeth by the time they are 50. Many have a complete set of false teeth by that time. In any case neither toothache nor a visit to a dentist is very pleasant. So it is worthwhile making an effort to keep your own teeth as long as possible. The main preventative agent is simply water.

听力题 A small dog brought disaster to a small English town last week. It was trying to cross a busy street but was too frightened to leave the strip in the middle of the street. A truck driver parked his truck on the side of the road and got out to help it. While he was going to get the dog, his truck rolled down the street. It smashed into four parked cars, crashed through a fence, rolled down a bank and smashed into a row of houses. Only the driver was hurt. The dog bit him on the hand while he was carrying it. Here is another story about dogs. A nine-year-old child who nearly drowned while she was swimming in a home swimming pool, was saved by the family dog on Saturday. The child was alone in the large pool at the time. The family of the dog said it would receive an extra large bone as a reward. A small dog brought disaster to a small English town last week. It was trying to cross a busy street but was too frightened to leave the strip in the middle of the street. A truck driver parked his truck on the side of the road and got out to help it. While he was going to get the dog, his truck rolled down the street. It smashed into four parked cars, crashed through a fence, rolled down a bank and smashed into a row of houses. Only the driver was hurt. The dog bit him on the hand while he was carrying it. Here is another story about dogs. A nine-year-old child who nearly drowned while she was swimming in a home swimming pool, was saved by the family dog on Saturday. The child was alone in the large pool at the time. The family of the dog said it would receive an extra large bone as a reward.

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听力题M: Would you like a cup of coffee? W: Yes

听力题M: Are you ready for the trip to the museum in the Big Apple? I can hardly wait. W: The Big Apple? What are you talking about? M: The Big Apple is the nickname for New York City. You are going to New York with: us, aren''t you? W: Yes, I''m going. I''m especially looking forward to seeing the Museum of Modern Art. There''s special show of 20th century American painters there. But, tell me, where did the nickname the Big Apple come from? M: The jazz musicians of the 1920s are responsible for the name. When they played a concert in a city, they called that city an apple. Of course, New York was the biggest city in the country and the best place for a jazz concert. So, the musicians called it the Big Apple. W: Amazing! New York is such a fascinating place and it even has an interesting nickname, one that it''s had for more than 50 years. M: Are you ready for the trip to the museum in the Big Apple? I can hardly wait. W: The Big Apple? What are you talking about? M: The Big Apple is the nickname for New York City. You are going to New York with: us, aren''t you? W: Yes, I''m going. I''m especially looking forward to seeing the Museum of Modern Art. There''s special show of 20th century American painters there. But, tell me, where did the nickname the Big Apple come from? M: The jazz musicians of the 1920s are responsible for the name. When they played a concert in a city, they called that city an apple. Of course, New York was the biggest city in the country and the best place for a jazz concert. So, the musicians called it the Big Apple. W: Amazing! New York is such a fascinating place and it even has an interesting nickname, one that it''s had for more than 50 years.

听力题Questions 22 to 25 are based on the passage you have just heard

听力题 Many people catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can''t they find a cure for the common cold? The answer is easy. There''re actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn''t a cure for each one. When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and causes a blockage in it. You feel terrible because you can''t breathe well, but your body is actually eating the virus. Your temperature rises and you get a fever, but the heat of your body is killing the virus. You also have a running nose to stop the virus from getting to your cells. You may feel miserable, but actually your wonderful body is doing everything it can to kill the cold. Different people have different remedies for colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some people take hot baths and drink warm liquids. Other people take medicines to relieve various symptoms of colds. There is one interesting thing to note: Some scientists say taking medicines when you have a cold is actually bad for you. The virus stays in you longer because your body doesn''t develop a way to fight it and kill it. Many people catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can''t they find a cure for the common cold? The answer is easy. There''re actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn''t a cure for each one. When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and causes a blockage in it. You feel terrible because you can''t breathe well, but your body is actually eating the virus. Your temperature rises and you get a fever, but the heat of your body is killing the virus. You also have a running nose to stop the virus from getting to your cells. You may feel miserable, but actually your wonderful body is doing everything it can to kill the cold. Different people have different remedies for colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some people take hot baths and drink warm liquids. Other people take medicines to relieve various symptoms of colds. There is one interesting thing to note: Some scientists say taking medicines when you have a cold is actually bad for you. The virus stays in you longer because your body doesn''t develop a way to fight it and kill it.

听力题W: Good morning. Housing Office

听力题 I read in the newspaper the other day that we tell between two hundred and three hundred lies every day. It makes me wonder if honesty is still important. There are so many times when we just seem to expect people to be dishonest rather than honest. We expect individuals to try to take advantage of other people whenever they can. And we sometimes expect politicians not always to be honest in their dealings. And we even expect students, sometimes, to cheat on exams or to do things to help their scores. I wonder that if it''s really fair to these people, because I still think there are honest people. The other day a very good friend of mine and I were in a restaurant. When the cashier gave him back his money after we got out of the restaurant, he realized that he had ten or fifteen dollars more than he was supposed to have. He didn''t even hesitate at all. He went right back in and gave it back, and of course, the cashier was very happy. But, I was pleasantly surprised, because it means that there really are people running around who are honest. I read in the newspaper the other day that we tell between two hundred and three hundred lies every day. It makes me wonder if honesty is still important. There are so many times when we just seem to expect people to be dishonest rather than honest. We expect individuals to try to take advantage of other people whenever they can. And we sometimes expect politicians not always to be honest in their dealings. And we even expect students, sometimes, to cheat on exams or to do things to help their scores. I wonder that if it''s really fair to these people, because I still think there are honest people. The other day a very good friend of mine and I were in a restaurant. When the cashier gave him back his money after we got out of the restaurant, he realized that he had ten or fifteen dollars more than he was supposed to have. He didn''t even hesitate at all. He went right back in and gave it back, and of course, the cashier was very happy. But, I was pleasantly surprised, because it means that there really are people running around who are honest.

听力题M: Come on, Julie

听力题Questions 19 to 21 are based on the passage you have just heard

听力题 Nearly 400 years ago a young man traveled up to London. The young man had come on foot from Stradford-on-Avon, a small town on the Avon. He was poor, but he had confidence in his future, the future of a great actor. His name was William Shakespeare. He had not been in London very long before he noticed that play-goers all went to the theatre on horseback. "Here is an opportunity!" he thought,"There must be someone to take care of the horses when people are watching a play." So he began to do the job and he did it so well that people all liked him very much. Soon the actors found the young man a very promising actor and he was given an opportunity to play a part on the stage. From that time on, his name became known. But he was not content with the life of an actor. He took great interest in play-writing. The plays he wrote, popular in England of his own time and up to the present day, have shown him to be one of the greatest writers the world has ever produced. He is among those who are loved by the people in all time and in all lands. Nearly 400 years ago a young man traveled up to London. The young man had come on foot from Stradford-on-Avon, a small town on the Avon. He was poor, but he had confidence in his future, the future of a great actor. His name was William Shakespeare. He had not been in London very long before he noticed that play-goers all went to the theatre on horseback. "Here is an opportunity!" he thought,"There must be someone to take care of the horses when people are watching a play." So he began to do the job and he did it so well that people all liked him very much. Soon the actors found the young man a very promising actor and he was given an opportunity to play a part on the stage. From that time on, his name became known. But he was not content with the life of an actor. He took great interest in play-writing. The plays he wrote, popular in England of his own time and up to the present day, have shown him to be one of the greatest writers the world has ever produced. He is among those who are loved by the people in all time and in all lands.