Урок 33 • Повторение и обобщение изученного РАБОТА В ГРУППЕ
4
Реши задачи.
а) Пешеход двигается со скоростью 5 км/ч. Сколько километ-
ров он пройдёт за 2 часа?
б) Велосипедист едет со скоростью 15 км/ч. Какой путь он
проедет за 5 часов?
в) Сколько метров пробежит спортсмен, если он будет бе-
жать 5 минут со скоростью 200 м/мин?
г) Скорость пешехода - 5 км/ч, что в 3 раза меньше скорости
велосипедиста. Узнай скорость велосипедиста.
УМОЛЯЮ УМОЛЯЮ У МЕНЯ ОСТАЛОСЬ 10 МИНУТ ДАМ 85 ОЧКОВ
Albert Einstein was an outstanding German-born theoretical physicist and one of the fathers of modern physics. He received a Nobel Prize in Physics and was an Honorary Doctor of about 20 leading universities in the world. Einstein wrote more than 300 scientific papers and 150 books on the history and essence of science. He was born on March 14th, 1879, in Ulm, in the family of a salesman. His father and his uncle were the founders of one electrical equipment company. His mother was a housewife. When he was still a toddler, his family moved to Munchen where Albert attended a Catholic elementary school. Later, he transferred to Gymnasium, which now has his name. When he turned 14, he moved to Switzerland, where he studied at the Zurich Polytechnic School. Starting from 1909, he taught at this educational institution and became a Professor.
At the age of 34, he was already the director of the Institute of Physics and a Professor of the University of Berlin. In 1933 he was forced to leave Germany by the Nazis. He moved to the USA then and lectured there at Princeton until his death. His three important scientific works on the theory of relativity, the Brownian motion and quantum theory were published already in 1905. The next year, he created the formula about the relation between mass and energy. In 1916, he predicted the phenomenon of induced radiation of atoms. A year later he completed the general theory of relativity. His theory for the first time in science showed the link between the space-time geometry and distribution of mass in the universe. This theory was based on Newton’s gravitational law. Although Einstein’s theories seemed too revolutionary for that time, he soon received a number of confirmations.
In 1920s and 1930s the anti-Semitism was gradually gaining popularity in Germany. His theory of relativity became a subject of criticism. When the scientific work became impossible in his native country, he moved to the USA. There, he instantly received a professorship at the Princeton Institute for Advanced Study. Unified field theory became the subject of his scientific research for the last twenty years of his life. He tried to bring the theory of gravitation and electromagnetic field together. During the Second World War, he heard of the German uranium project and wrote an open letter to the US President Franklin warning about the possible consequences of the Nazi’s creation of atomic bomb. Shortly before his death, Einstein signed a petition addressed to the governments of all countries, warning them about the dangers of hydrogen bomb and nuclear weapons.
An outstanding and brilliant physicist died on April 18th, 1955. During his life he had a great number of honorary awards and world recognition. He had once received an offer to become the president of Israel, which he politely refused. In 1999, “The Times” magazine named him the man of the century. Einstein was married twice. He met his first wife when he was studying in Zurich. The couple had two sons. In 1919, he got a divorce and married his widowed cousin Elsa, who died in 1936. In his free time he liked playing the violin and was rather good at it. Another cherished hobby of the scientist was sailing.(Про Альберта Эйнштейна)
Объяснение:
Today healthy lifestyle is becoming more and more popular both with the old and the young. People have become more health-conscious. They say that the greatest wealth is health. And it’s so true. The healthier we are, the better we feel. The better we feel, the longer we live.
A healthy diet is an essential part of staying healthy. We know that we should not stuff ourselves with fast food, sweets, sausages, pastry and fat food. Due to medical research, this type of food shortens our life, it leads to obesity, heart and blood vessels diseases, diabetes, gastric problems and lots of other serious ailments. To prevent all these problems we should enjoy well-balanced home-made meals with a lot of organic fruits, vegetables, dairy products, grains and seafood. We are what we eat.
Keeping fit and going in for sports is also important for our health. Lack of exercise in our life is a serious problem. In big cities people spend hours sitting in front of computers, TV-sets and other gadgets. We walk less because we mainly use cars and public transport. We certainly don’t have to be professional sportsmen, but we should visit fitness clubs, go jogging, walk much, swim, go cycling or roller-skating or just dance. Doctors say that regular moderate physical activity is necessary for our body because it protects us from strokes and heart diseases, flue and obesity.
We must understand the harm of bad habits for our health. Smoking, drinking or taking drugs mean serious illnesses and even death from lung cancer or liver diseases, for instance. Cigarettes kill about 3 million heavy-smokers every year. Drug addicts die very young. So I think there is no place for bad habits in a healthy way of life.
Taking a proper rest and getting enough sleep, from 8 to 10 hours daily, are also great healthy habits. Sleep is the food for our brain and the rest for our muscles. Moreover we should avoid getting nervous or worried for no reason.
Healthy way of life concerns our body, mind and soul. Healthy people live longer, they are more successful and they enjoy their life. I believe that it’s not difficult at all to follow these simple rules, and they are worth it.
Перевод
Сегодня здоровый образ жизни становится все более популярным среди молодых и пожилых. Люди стали более внимательными к своему здоровью. Говорят, что здоровье – это самое большое богатство. И это чистая правда. Чем здоровее наш организм, тем лучше мы себя чувствуем. Чем лучше мы себя чувствуем, тем дольше мы живем.
Здоровая диета – важная часть здоровой жизни. Мы знаем, что мы не должны заполнять свой организм едой фаст-фуд, сладостями, колбасными и мучными изделиями, жирными продуктами. Согласно медицинским исследованиям, такая еда сокращает жизнь, ведет к ожирению, заболеваниям сердца и кровеносных сосудов, диабету, желудочным проблемам и многим другим серьезным недугам. Для того, чтобы предотвратить эти проблемы, нам следует наслаждаться сбалансированной домашней едой, богатой органическими фруктами, овощами, молочными продуктами, злаками и морепродуктами. Мы есть то, что мы едим.
Оставаться подтянутым и заниматься спортом – это тоже важный момент для нашего здоровья. Недостаток движения в нашей жизни является серьезной проблемой. В больших городах люди часами сидят перед компьютером, телевизором и другими гаджетами. Мы меньше ходим пешком, поскольку пользуемся, главным образом, автомобилями и общественным транспортом. Разумеется, мы не обязаны становиться профессиональными спортсменами, но нам нужно посещать фитнесс-клубы, заниматься бегом, много ходить, плавать, кататься на велосипеде или роликах или просто танцевать. Врачи утверждают, что регулярная умеренная физическая активность необходима для нашего тела, так как она защищает нас от сердечных заболеваний и приступов, гриппа и ожирения.
Мы обязаны понимать пагубное влияние вредных привычек на наше здоровье. Курение, алкоголизм и наркомания означают серьезные заболевания и даже смерть от рака легких или заболеваний печени, к примеру. Сигареты убивают около 3 миллионов курильщиков ежегодно. Наркоманы умирают очень молодыми. Поэтому, я считаю, что в здоровом образе жизни нет места для вредных привычек.
К здоровым привычкам также относятся хороший отдых и достаточный сон, от 8 до 10 часов ежедневно. Сон – это пища для нашего мозга и отдых для наших мышц. Более того, нам следует избегать нервничать или беспокоиться без особого повода.
Здоровый образ жизни затрагивает наше тело, ум и душу. Здоровые люди живут дольше, они более успешны и получают удовольствие от жизни. Думаю, что следовать этим простым правилам совсем несложно, и они стоят того.