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Mark these sentences true, false or ds (doesn't say) 1. people couldn't communicate before they invented the alphabet. 2. in the ancient world people also had big, fast communication networks. 3. marathon is the name of a place in ancient greece. 4. in medieval times people used the telegraph. 5. the american indians used smoke signals because they couldn't read or write. 6. people invented the post in the 18th century. 7. in the 19 th century people used some code for the telegraph. 8. at dede gorgud's time on unhappy days people set a fire on the hills. 9. people all over the world communicate only by the help of birds. это тексты для вот это первый текст in the ancient world there were thousands of foot messengers who formed an ancient communication network. one of the most famous messengers in history was a greek soldier. he ran to athens to bring the news of the greek victory over the persian. when he got to athens and gave the news, he fell dead of exhaustion . he had covered a distance of 26 miles. in honour of that soldier, sportsmen nowadays run the same distance — a marathon. when the telephone invented in 1876 everybody thought that it to be a real miracle. the telephone and the telegraph were the fastest means of communication that people could imagine. in the 19 century people used to say: we have invented everything we could .as we know today it is just the benning. in the middle ages life was hard and dangerous. it was very important to have good neighbours and to get news quickly. so people used the high towers of their castles to send and receive messages about the enemies. american indians didn't build high towers but used smoke signals to send important information. это 2 текст from ancient times, fire has been a means of communication. even at dede gorgud's time on happy days people set a fire at the top of the highest mountain. if there was set one fire, it meant that people celebrated a very special, happy event, if there were set two fires it meant that something wrong had happened, they were in danger or the enemy was at the door. a dove has always been the symbol of peace all over the world. in old times a dove was a mediator to deliver a message from one place to the other. people communicated with each other by the help of the dove. when people didn't have the alphabet or they couldn't read or write they drew pictures on the walls or rocks. these pictures tell people the stories of their everyday life, battles and culture. gobustan is a lively sample and one of the first holy places of art culture of the world where the ancient dance and musical culture are formed.

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nastena544
nastena544
4,5(27 оценок)
1. people couldn't communicate before they invented the alphabet.=false(in the ancient world there were thousands of foot messengers who formed an ancient communication network.) 2. in the ancient world people also had big, fast communication networks.=true (in the ancient world there were thousands of foot messengers who formed an ancient communication network.=здесь можно под вопросом поставить и ответ false, так как по сути не сказано, что это был быстрый способ сообщения..то есть сомнительно)) 3. marathon is the name of a place in ancient greece.=false (he had covered a distance of 26 miles. in honour of that soldier, sportsmen nowadays run the same distance — a marathon.  ) 4. in medieval times people used the telegraph.=false(people used the high towers of their castles to send and receive messages about the enemies.) 5. the american indians used smoke signals because they couldn't read or write.=d.s (american indians didn't build high towers but used smoke signals to send important information.  =но не сказано, что они это делали потому, что не умели читать и писать) 6. people invented the post in the 18th century.=d.s 7. in the 19 th century people used some code for the telegraph.=d.s 8. at dede gorgud's time on unhappy days people set a fire on the hills.=false (not only on unhappy but on happy days, too) 9. people all over the world communicate only by the help of birds.=false
Raptilla
Raptilla
4,7(58 оценок)
1/ false 2/ true 3/   false 4/ false 5/ true 6/ ds 7/ ds 8/false 9/false
xzc999
xzc999
4,5(8 оценок)

aerobic and anaerobic exercises.

there is a division of sports exercises intensity to aerobic (aka cardio), anaerobic and mixed. the difference between this tipes of exercises are in the way to supply muscules with oxygen. during the aerobic training there is enought oxygen entering the body to the muscules, and during the anaerobic - there is a lack of it. from this differense we have an important consequenses:

during the training the energy of the body is taken from atp (adanoisine triphosphate) but for the synthesis of atp in different types of trainings different substanses are used. during the aeribic exersises this substances are glucose from the blood and fat from the adipose tissue. during the anaerobic - only glucose from blood. that's why it is belived that anaerobic exercises are useless in trying to get slimmer. 

how to distinguish aerobic and anaerobic exericises?

the main thing is a pulse rate, more precisely, it's percentage of the maximum heart rate. to get this number for yourself, substract your age in years from 220. anaerobic training is 50% of this number and more.

what types of exersices are aerobic an anaerobic?

aerobic: running, swimming, biking, aerobics (which is why it is called so).

anaerobic: power loads - bar, fitness equipment.

and of course running and swimming may become anaerobic too if you'll try to hard. it is worht remember if your goal is to loose weight.

 

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