Задание 4:Continue the following statements.
1. The British system of units, the metric system of units and the International
system of units (SI) are ...
2. Everyone who knows arithmetic can ...
3. Before the introduction of the metric system ...
4. The conversion to a higher quantity in a metric system is done ...
5. In 1791 the French Academy of Science decided ...
6. The two French scientists took this distance ...
7. Metre was also used to measure ...
8. The main advantage of the metric system is ...
9. The unit of mass was defined ...
10. The SI system is derived ...
Текст
Задание 1: Read the text: The metric system
Physics measures such physical quantities as time, length, mass, density, velocity, area, volume, temperature and energy. Different units of length and mass exist. Nearly all of them are interrelated. Nowadays, three main systems of measurement are widely used: the British system of unity, the metric system of units and the International system of units (SI).
With a few exceptions, all the nations of the world use the metric system. It is so easy that anyone who knows arithmetic can learn it quickly. Before the introduction of the metric system (metre — kilogram—second), the British foot—pound—second system was widely used. But the latter system (which is still in use in Great Britain and the USA) was very complicated and caused serious difficulties in the international trade. For example, in the British system 1 mile is equal to 1760 yards, 1 yard — to feet and 1 foot — to 12 inches. This means that it’s very difficult to convert units. But in the metric system each unit is a multiple of the following lower unit by ten. Therefore, the conversion to a higher quantity is done by moving the decimal point to the right to the required number of places, and vice versa.
The idea of decimal system was realised only at the end of the 18th century. In 1791, the French Academy of Science decided that the stand¬ard of length should be one ten-millionth part of the distance from the Equator to the North Pole. The two French scientists charged with the task took this distance on a line running through Paris and divided it into 10 000 000 equal parts. They called one of the parts a metre (‘measure’), which became the main unit. Metre was also used to measure area and volume. Thus a square metre and a cubic metre appeared.
The main advantage of the system is that for shorter measurements the metre is divided by ten, so a decimal system was used. Shorter units had Latin prefixes and longer ones — Greek prefixes. So, ‘millimetre’ is Latin for ‘a thousandth part of a metre’ and ‘kilometre’ is Greek for ‘a thou¬sand metres’.As for the unit of mass, it was defined as the mass of a cubic centime-tre of water at the temperature of 4 °C (the temperature of its maximum density). As we know, the name of this unit is gramme.
The SI units is derived from the metric system and was internationally accepted in 1960. Besides metre (m), kilogram (kg) and second (s), its basic units are Kelwin (K), ampere (a), mole (mol), and candle (cd). This system was introduced in our country in the 1960s and every day wemeas¬ure things by the units from this system.
ответ:English in the life
The modern world is becoming smaller all the time. Every day distances between different countries seem less. For this reason it's becoming more and more important to know different languages, especially English.
One billion people speak English today. That's about 20% of the world's population. 400 million people speak English as their first language. For the other 600 million people it's either a second language or a foreign language.
English is the first language in the United Kingdom, the United States of America, Australia and New Zealand. It is one of the official languages in Canada, the Irish Republic and the Republic of South Africa.
As a second language English is spoken in more than 60 countries. It is used by the government, businessmen and universities.
English is the language of politics and diplomacy, science and technology, business and trade, sport and pop music. 80% of all information in the world's computers is in English. 75% of the world's letters and faxes are in English. 60% of all international telephone calls are made in English. More than 60% of all scientific journals are written in English.
To know English today is absolutely necessary for every educated person, for every good specialist. Learning a language is not an easy thing. It's a long and slow process that takes a lot of time and patience. But it's a must.
English is taught throughout the world and a lot of people speak it quite well. In our country English is very popular: it is studied at schools (sometimes even at nursery schools), colleges and universities.
Everyone will speak English soon — I'm sure of it. We all need to understand each other. To do that we need an international language, and that's English.
Объяснение:
Usually a small, quiet town west of London, Ascot becomes a high-society hotspot for five days in June. hippodrome 1) The owner of the "jewel in the crown" of British horse racing, known for big wins and amazing outfits. because the queen 2) is present in person, the event 3) is known as "Royal Ascot". It is the most popular equestrian event in Europe and over the past 4 years has attracted up to 300 thousand horse racing participants per day. The players aren't the only ones who get nervous when the horses jump out of the starting gate. In addition to the £ 5.5 million prize money, there is a lot at stake for horse owners, trainers and jockeys. if a horse wins, its value (5) soars and also boosts the career of an atd jockey trainer. however, preparing for race 6) will not be easy. Ascot Racecourse 7) is considered one of the most demanding in the world. Horse racing isn't the only thing that gets people's attention at Ascot. it's also a fashion show like no other! On Women's Day, what women (8) wear when they arrive often gets more press coverage than what happens at the racetrack. participants of the races in the "royal enclosure" are required to comply with a strict dress code. men should wear morning coats and top hats. ladies wear evening dresses and hats and, in the latter case, often show off outrageous models. her Majesty's hats are usually more conservative!