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The researchers treated colon (结肠) cancer cells with fifty milligrams of apple extract (苹果汁). Extracts from the apple skin reduced the growth of cancer cells by forty-three percent. Extracts from the fruit's flesh reduced the growth of cancer cells by twenty-nine percent.
The researchers also treated human liver (肝) cancer cells with apple extract. Extracts from the apple skin reduced the growth of those cells by fifty-seven percent. Extracts from the fleshy part of the apple reduced the cancer cells by forty percent.
Lead researcher Liu Ruihai said scientists have long known that apples are good for human health. He says some scientists are interested in testing single vitamins or other substances to see if they alone fight disease. He says his study shows no single substance works alone to reduce cancer. Instead, the combination of chemicals in apples is effective and eating fruit and vegetables is better than taking extra vitamin pills.
2-5-A
1. Most people like music. In fact, we are surrounded by it. It's on the radio and television and can be heard in stores and offices. However, not everyone likes the same kind of music.
2. The manager of the music shop was called Brian Epstein. Because so many people had asked for a record by the Beatles, Epstein decided to go and listen to the group himself.
3. Firstly I would like to talk about classical music and its representative composers, then I will move on to jazz music, and finally I will focus on pop music in the last century.
4. We listen to exciting music and our hearts beat faster, our blood pressure rises, and our blood flows more quickly. In short, we're stimulated.
2-5-B
Background Music
Background music may seem harmless, but it can have a powerful effect on those who hear it. Recorded background music first found its way into factories, shops and restaurants in the USA. Very soon it spread to other parts of the world. Now it is becoming difficult to go shopping or eat a meal without listening to music.
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To begin with, background music was intended simply to create a soothing atmosphere. Recently, however, it's becoming a big business. An American marketing expert has shown that music can boost sales or increase factory production by as much as a third.
But it has to be the light music. Lively music has no effect at all on sales. Slow music can increase receipts by 34%. This is probably because shoppers slow down and have more opportunity to spot items they would like to buy. Yet, slow music isn't always the answer. The expert found that in restaurants slow music meant customers took longer to eat their meals, which reduced overall sales. So restaurant owners might be well advised to play faster music to keep the customers moving -- unless, of course, the resulting indigestion leads to complaints.
2-5-C
Celine Dion
Celine Dion is the youngest of 14 children in a working-class family in Quebec, Canada. Her parents, who both loved music, encouraged her to develop her musical talent. At 12, Celine had composed the song \Was Only a Dream\Her mother and brother helped her to make a recording of that song and sent it off to an address they found on an album of a popular French singer. The address was that of Rene Angelil, who became her first conquest, but there would be millions more.
Celine's rise from a teenage singer to a pop superstar has been steady, but not without difficulties. Record companies were at first less enthusiastic about investing in a teenager than Angelil, who mortgaged his own home to pay for her first album. But her first two albums won a great success. And by 1983 she became the first Canadian ever to have a gold record in France.
In 1990, Celine made her first English language record with Unison but her real breakthrough in America came when she was selected by Disney to sing the theme song of Beauty and the Beast. The song went to No. 1 on the chart and won both a Grammy and an Academy award. In 1996 she performed at the opening ceremonies of the 1996 Atlanta Olympic Games and in 1997, she recorded the theme song for Titanic, and her name became synonymous with the enormously successful film.
Celine Dion's favorite theme is love. She sings the depth and the power of love in a great many of her hits such as \Love\
2-6-A
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Identifying the Major Event in a Conversation
W: Here we are, Mr. Wang. This is a newly-built building.
M: What a fine building! How many floors are there?
W: Forty. Our company has offices on four floors in the building.
M: Yours is really a big company.
W: Yes, it is. The sales office is on the first floor. The marketing and accounting offices are on the second floor. And we have many other departments: personnel. research, etc. They are all on the 8th floor.
M: Where's the manager's office?
W: It's on the 9th floor.
Passage:
Ladies and gentlemen, welcome to our company. Our company was established in 1999. It is a joint-venture company specializing in sportswear. Most of our products are for young students; some are for adults. All our products sell well both at home and abroad. In recent years, we have expanded our markets from China to Southeast Asia, East Africa, North America, and South America.
2-6-B
Who Is to Be Promoted?
(The Personnel Department is having a meeting. Joan Black is the chairperson of the meeting. )
Joan: I think John Jeffrey's already been with the company for 20 years. Surely he's not still expecting promotion. Do you agree, Peter?
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Peter: Well. in my opinion, John's always shown great loyalty to the company. It's time this was rewarded. What do you think, Clive?
Clive: It's not just a question of loyalty. Would he be any good at the job? He would need to manage a small team -- he's got no experience of that yet.
Peter: He never will have any experience unless we give him a chance!
Joan: We can't afford to be sentimental. I don't think he's the man for the job. He's always been a follower, not a leader. Let's move on to the other candidates. Rita Hayden has already shown great personnel management skill, I feel, even if she's ...
Peter: Oh, come on, Joan! Rita's still learning her trade! We can't afford to take a risk with someone so inexperienced.
Clive: I agree with Peter. I favor Susan Palmer. She's got a lot of experience. She's already worked in the department on other occasions so she knows the ropes and she's ...
Joan: But Susan's always struck me as a bit cautious. We need someone dynamic for this job.
Peter: I'd agree with Clive. I think Susan Palmer would do a good job. Maybe she's a bit cautious but she's solid, reliable... We need those qualities too.
Joan: Well, if you're both so sure, I suppose I'll have to agree. Still, we'll wait a week before confirming it just in case any other applicants put their names forward.
2-6-C
A Good Salesman
Mr Stevenson was the owner of a general appliance store. He had seen many newly-weds coming into his store to shop for their first refrigerator, washer and dryer, and air-conditioner. Pen and pencil in hand, they would ask him a lot of questions about price, features and after-sale services, but they would usually walk away at the end of their inquiry.
The other day a young couple came into his store. They asked him all the usual questions and he answered all of them patiently. But when he suggested an order at the end, they replied firmly, \
Although feeling a bit disappointed, Mr Stevenson did not show it. Instead, he smiled, moved
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closer and said, %understandable. I do the same. In fact, they sell the same stuff as we do. But if you buy things there, there is something you will not get. And that is me. I come with everything I sell. I've been in the business for thirty years and in a few years' time I'm going to give my store to my daughter and son-in-law. I hope they will carry on the family business. I stand behind everything I sell and I will make sure that you will never regret buying things from me.\
After this short speech Mr Stevenson offered the young couple some ice cream to thank them for their interest.
Impressed by his honesty and sincerity, the young couple decided to place an order.
2-7-A
Dialogue
M: Excuse me, do you have a T-shirt of this kind in a larger size?
W: What size do you want?
M: Medium.
W: Pardon?
M: I want a medium.
W: Here's a medium in black. Do you like it?
M: Well, I like the picture on the front, but I'd prefer a white one with a slogan on the front.
W: Here's a white one in medium. And it's 100% cotton.
M: Perfect. I'll take it.
2-7-B
Fashion -- Image or Reality?
Why do people spend so much money on fashion? Do they want to create an image or make sure they are not old-fashioned? Do people really judge each other by the clothes they wear? The
全汇总整理大学英语听说教育教案学生用书听力材料
