M: Kate,may I have a look at your new violin?
W: Oh,sorry,John. I lent it to my neighbor this morning.
W: Do you still live in your old house?
M: No.I am going to move out to a new apartment with an air conditioner.
M: Celia,over here!
W: Hello!Tony,sorry,I'm late.My boss asked me to finish some important work.
M: It's OK. I only got here a couple of minutes ago.
W: Hi, Tom.What are you doing here?
M: I'm waiting to buy a ticket to go home. I have been waiting for two hours. But it seems that I will have to wait for another one hour.
M: Excuse me, Madam.May I take your order?
W: Do you have any specials?
M: Here is the menu.
W: Do you know where Steven is,Mark?
M: Sorry,I don't know. What's the matter?
W: He is supposed to be at the meeting a quarter later．But I can't find him anywhere.
M: Oh, I remember something.John told me that Steven went out for lunch and would come back at 3:30.
W:Then he will be 15 minutes late for the meeting.
M: Don't worry.I'll call him.
W: Eric, you didn't have classes today, but you were not at home. Where did you go?
M: I went to James' house and then we went shopping after lunch.
W: Did you buy anything?
M: Yes, I bought a hat and James helped me to choose．
W: But I don't think you need a hat. Why did you buy it on earth?
M: I bought it because I liked its design.Lots of boys in the school wear hats like it.
W: Well, personally, I don't like it. It looks a little strange for me.
M: Please, Mum. I really like it.James has a hat like this, and Bill does too.
M: Mary, I know you love gardening and you started your gardening business a few years ago.I just wonder how your hobby became your business.
W: Well, I read an article about a woman who'd lost her job. She used her savings to start her own business. And my friends often told me I was a good gardener,and I thought I could do it.
M: How did you get started?
W: Oh, doing small jobs for friends and relatives and I soon found myself getting plenty of work.But there was a lot of rain during that first year,so some jobs took longer than planned.But I got nice comments from people when the jobs were finished.
M: And how are you getting on now?
W: Very well. I get most of my new customers from people who have recommended me and I needn't look for work by knocking on doors.I do advertise, but that's just a few notices in shop windows.
W: I've really given it some thought, and I'm going to go back to school.I'm going to...
M: Well, when?
W: I'm going to take some night courses and maybe within a couple of years,I'll have an..uh...an Associate's degree in Business.
M: Well,when are you going to get started?
W: I'm going to start it this fall.
M: Now, are you sure you can get enough money?
W: I've talked to my parents and they could support me.
M: Well, that's great. I hope you follow through with it. You've been talking about it for years.
W: Well, it took me a while to put it together,but I've finally made up my mind where I'm going and this fall，it will definitely be a "go".
M: Er... I just hope you follow through with it this time．
W: Don't worry. I will.
One way that scientists learn about man is by animals, such as mice, rabbits and monkeys. The scientists in this laboratory are experimenting on mice. They are studying the relationship between diet and health.The mice are in three groups.
All three groups are receiving the same healthy diet.But the amount of food that each group is receiving is different.The first group is eating one cup of food each day,the second is eating two cups, and the third group of mice is eating three cups.
After three years, the healthiest group is the one that is only eating one cup of food each day. The mice in this group are thinner than normal mice.But they are more active. Also they are living longer. Mice usually live for two years. Most of the mice has this group are still alive after three years.The second group of mice has normal weight. They are healthy,too.They are active,but not as active as the thinner mice. And they are only living for about two years.The last group of mice spends most of the day eating or sleeping.They are not very active.These mice are living longer than scientists thought: about a year and a half. But they are not healthy. The experiment is still going on.The scientists hope to finish their studies in two years.