The human cardiovascular system consists of the heart , the blood vessels ,and blood.

Model: a tendency; to expand old universities; in Britain
There is a tendency to expand old universities in Britain.
1) nearly 1900 institutes of higher learning; in America
2) more than 40 universities; in Britain
3) numerous societies; in British universities
4) more than 150,000 students; at the Open University

предложений.

arteries to all the parts of the body Scientists have determined that the total weight of the blood pumped by the hemi daily is about 10 tons. Physiologists have established that in the adult the heart makes from 60 to 7,' beats per minute.4n children the rate of heartbeat is much higher. Research work of many scientists has helped to determine that the rate of heartbeat increase depending on different emotions. Each beat of the heart is followed by a period of rest for the cardiac muscle Each wave of contraction and a period of rest following it compose a cardiac cycle The period of rest is shorter during greater physical exertion and longer when the body is at rest. The physiologists called the first phase of short contraction of both atria - the atrial systole, the second phase of more prolonged contraction of both ventricles- the ventricular systole. The period of rest of the cardiac muscle is called the diastole The blood received by the left atrium from the pulmonary circulation is discharged out by the left ventricle to the systemic circulation through the aorta. The atria act as receiving chambers.

“far,” and phone, meaning "sound," and refers to a telecommunications device that allows the human voice to travel across great distances. There are different types of telephones and corresponding types of telephone systems. The three main types of telephone systems are Plain Old Telephone Service, cellular wireless phones, and Internet
Protocol phones.
Landline telephone systems are part of the Plain Old Telephone Service (POTS), the analog service with copper wiring that is the direct great-grand-baby of the original telephone system courtesy of Alexander Graham Bell. The advantages include standardized equipment, predictable sound quality, and — due to direct connections to the central office of the company — no need to share the system’s capacity with
others. Because switches are in place, creating a private circuit for each phone call, it is also called the Public Switched Telephone Network (PSTN). A new-fangled term, given the recent alternatives, is “landlines.”
Another of the types of telephone systems is for cellular wireless phones, with individual companies having their own networks with varying technology. Like POTS systems, cellular wireless telephone systems are full-duplex systems, meaning that both people on the call can talk at the same time, but cell phones use radio frequencies, rather than copper wire. Though cellular networks began as mobile voice networks only, they now carry both voice and data. Some networks are national,
while others are international, and new technologies are continually in development. The networks known as 3G support not only cell phones, but also netbook computers, smartphones, and wireless modem aircards.
Internet Protocol (IP) telephone systems, also called Voice over Internet Protocol (VoIP), are another group of the telephone systems that are in use in the 21st century. This type of telephone service piggy-backs on existing Internet service, either cable service or DSL broadband. A device called an Analog Telephone Adaptor is the go between that connects whatever phone you happen to have with either your broadband modem – or your router, if you have one.
IP systems can be set up with a single line for both Internet and telephone service, which can save money.
With an Integrated T1 line, instead of being set up for voice, on the one hand, or data, on the other, the T1 line is able to handle both. With Dynamic T1, the line is capable of assigning bandwidth as needed, given the current use.

country, with a large circulation, giving general news. There are two main types of national papers - the "popular" papers and the "quality" papers. The popular papers are smaller in size (they are tabloid size), with lots of pictures, big headlines and short articles. They are easy to read and often contain little truthful information. They give much space to opinions. They usually have "human interest" stories - stories about ordinary people and events. Examples of this type of newspapers are "The Daily Mail". "The Sun", etc. "Quality" papers appeal to the more serious reader, who wants to read about politics and foreign affairs. These papers such as "The Daily Telegraph", "The Guardian" are bigger in size (they are called "broad-sheets"), with longer articles and a wider coverage of events. They have different pages for home news, foreign affairs, features articles, fashion, business, sport and so on. People in Britain buy more papers on Sunday than on weekdays. The Sunday papers have a higher circulation than the dailies. As with the dailies, there are both popular and quality Sunday newspapers. The quality ones have different sections and a colour magazine (usually full of advertisements).

Northern Ireland.
England, Wales and Scotland occupy the territory of Great Britain and Northern Ireland is situated in the northern part of Ireland. The territory of the United Kingdom is about 244000 square kilometres. The population is over 56 million people. The capital of the United Kingdom is London.
The surface of the United Kingdom varies greatly. The northern and the western parts of the country are mountainous and are called the Highlands. All the rest is a vast plain which is called the Lowlands. The mountains are not very high. The rivers are not very long. The most important of them are the Severn and the Thames. There are many beautiful lakes in the mountainous part of the country.
The mountains, the Atlantic Ocean and the warm waters of the Gulf Stream influence the climate of GreatBritain. It is mild the whole year round. Winters are not cold and summers are not hot.
Great Britain is a highly developed industrial country. It is known as one of the world’s largest producers and exporters of iron and steel products, machinery and electronics, chemicals and textile. One of the industries is shipbuilding.
Great Britain is a country with old cultural traditions and customs. The most famous educational centres are Oxford and Cambridge universities. They are considered to be the intellectual centres of Europe. The education is not free, it is very expensive.
The United Kingdom is a monarchy and the Queen is the head of the state. But in practice it is ruled by the government with the Prime Minister at the head. The British Parliament consists of two chambers: the House of Lords and the House of Commons.
There are three main political parties in Great Britain: the Labour party, the Conservative party and the Liberal party.Перевести текст !!! не с переводчика !