Good afternoon, and welcome to England. We hope that your visit here will be a pleasant one. Today, I would like to draw your attention to a few of our laws.

    The first one is about drinking. Now, you may not buy alcohol in this country if you are under 18 years of age, nor may your friends buy it for you.

    Secondly, noise, Enjoy yourselves by all means, but please don't make unnecessary noise, particularly at night. We ask you to respect other people who may wish to be quiet.

    Thirdly, crossing the road. Be careful. The traffic moves on the left side of the road in this country. Use pedestrian crossings and do not take any risk when crossing the road.

    My next point is about litter（throwing away wasted material in a public place）. It is an offence to drop litter in the street. When you have something to throw away, please put it in your pocket and take it home, or put it in a litter bin.

Finally, as regards smoking, it is against the law to buy cigarettes or tobacco if you are under 16 years of age.

    I'd like to finish by saying that if you requires any sort of help or assistance, you should get in touch with your local police station, who will be pleased to help you.

    Now, are there any questions?

The Young Scientists Club was founded in 1999 with a clear and simple goal—to offer young children quality science-related products that will attract them with the wonders of scientific discoveries and increase their interest in science.

    All the products are designed by a team of Harvard graduates, scientists, educators and parents with one purpose in mind to combine fun and interest with quality and learning in each product. Of course, no product is put on the market before it has passed the final test.

    The Young Scientists Club was created to fill a void(空白) of good-quality science products for young children. They believe that children should know the exciting field of science at any early age with fun and bands-on games, activities and experiments.

    All the young scientists in the club are encouraged to continue their scientific adventures by exploring each different topic in more detail by entering online Young Scientists Clubhouse. There the young scientists can not only explore scientific topics and scientific experiments in depth, but can also e-mail Celsius with questions, results and comments. Celsius loves to e-mail all young scientists back.

Those who are at The Young Scientists Club have received many awards for their products. The Young Scientists Club is excited to realize its goal—-to take children around the world and take part in an educational scientific adventure that lasts a lifetime.

    Nature Nurtures Farm plans to organize some charity activities in this summer. It hopes to teach young people about charity. The farm wants to get about 30,000 dollars through these activities. They will use the money to improve the public water system in the city. Here is the information about these activities.

    Farm Festival

    Time: July 18th, 9 am--4 pm

    Place: Nature Nurtures Farm

    Admission: 10 dollars for anyone 5 or older

    Other: You can enjoy music, feed farm animals, visit the fruit garden and take     pictures.

    Art show

    Time: July 18th, 2 pm--5 pm

    Place: State Capital Museum

    Admission: Free

    Other: 67 works of art will be here. You can buy any one of them, the money will go to the city public water system.

    Mentoring program

    Time: August 7th, 10 am--3 pm

    Place: Nature Nurtures Farm

    Admission: Free

    Other: Teens aged from 7 to 18 can join the program. Children with problems in helping others can get help from this program.

    I ran into quite a few language problems while vacationing ( 度假) with my family last summer. The most embarrassing was when my Mom apologized to the people we were staying with because her “pants were dirty”. They looked at her in amazement, not knowing how to react. You see, Mom had fallen over and gotten mud on her jeans. But in Britain, “pants” means underpants or knickers( 内裤；衬裤), not trousers as it does back home.

    Katie — From America

    I went to stay with a friend on the west coast last summer. Her flat was on the first floor of a high-rise building so I got the lift up. Then I wandered round for ages looking for her flat but couldn't find it. Fed up and tired, I finally had to go out to find a phone box. She explained that her flat was on the first floor, which for me meant the ground floor.

    David — From Britain

    When I asked for the “restroom” in a big department store, people kept directing me to a room with seats where I could sit and “rest”. It took me years to get through to (使...明白)someone that I only wanted the toilet!

    Tom — From America

    Last summer we went on a two-week family touring holiday, so Dad hired a car over the Internet. This was an old vehicle and there turned out (结果是；证明是)to be lots of things wrong with it. When he phoned the hire company and tried to explain that the lock on the boot was broken, they thought he was talking about footwear! He had no idea their word for “boot” was “trunk”. In the end we went to a garage and just solved the problem.

    Mary — From Britain

    So often I hear people justify（为……辩解）their lack of family trips because their children are not old enough to remember them. This reason is so confusing to me. Who would travel based on another person's memory?

    Of course the kids aren't going to remember anything in infancy（婴儿期）, but you will. You will remember all the sweet memories you had with them.

    My parents would take me to Guatemala as a child. I don't remember a lot of the trip, but I do know that when I went back as a young adult, I felt comfortable in my surroundings. I didn't spend my time there discovering a new way of life. I spent the time having fun with my family. I love looking at pictures that we took together when I was my son's age. I don't remember them, but that's not the point. The point is, I was there with my family, and I know I was happy.

    Now that I'm a parent, I can't help but do the same. Last year, we took our 2-year-old son to Disney alongside his great-grandmother. His great-grandmother had recently begun to suffer from Alzheimer's. That trip was timed in the most magical way — right before my son was old enough to remember it and right before his great-grandmother began to forget. This makes me want to cry for them both. How did we get so lucky to have this moment to share with each other before big changes influenced our family forever?

    Realistically speaking, many families do not have the opportunity to travel internationally or visit pricey theme parks. I understand this more than you know, but I'm talking beyond that. They are young but these forgettable moments are still changing them. They will shape your child into who they will be tomorrow. The memories we absorb as their parents are also as influential as we have not finished learning our truths either.

    Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity (湿度).

    In very cold climates, there is a constant danger of developing hypothermia, which is a life-threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0℃. However, differences in persons and even the time of day can cause it to be as much as 6℃ higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4℃. Below 29.4℃, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9-15.6℃. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7℃.

    In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life-threatening hyperthermia typically starts in humans when their temperatures rise to 40.6-41.7℃. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.