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qhahz
qhahz
29.09.2021 23:31 •  Английский язык

Сократить текст ,чтоб вышел пересказ этого текста ! work of the human heart. the human heart contracts from the first moment of life until the last one. the contractions of the heart pump the blood through the arteries to all the parts of the body. scientists have determined that the total weight of the blood pumped by the heart daily is about ten tons. the rate of heart contractions is regulated by two groups of nerve fibers. it varies in different persons and at different age. physiologists have determined that in the adult the heart makes from 60 to 72 beats per minute. in children the rate of heartbeat is much higher. research work of many scientists has helped to determine that the rate of heartbeat increases 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. research work has given physiologists the possibility to find out that the heart muscle works or contracts about one third of the time of the person's life. the period of rest is shorter during greater physical exertion and longer when the body is at rest. each cardiac cycle consists of three phases: physiologists have called the first phase of short contraction of both atria - the atrial systole. they have called the second phase of a more prolonged contraction of both ventricles - the ventricular systole. the period of rest of the cardiac muscle is called the diastole.

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Ответ:
meri62
meri62
29.09.2021

Сердце человека сжимается с первого момента жизни до последнего. Сокращения сердца перекачивают кровь через артерии во все части тела. Ученые определили, что общий вес крови, перекачиваемой сердцем ежедневно, составляет около десяти тонн.

Частота сердечных сокращений регулируется двумя группами нервных волокон. Она различается у разных людей и в разном возрасте.

Физиологи определили, что у взрослого человека сердце составляет от 60 до 72 ударов в минуту. У детей частота сердцебиения значительно выше. Исследовательская работа многих ученых Установить, что частота сердцебиения увеличивается в зависимости от разных эмоций.

Каждое биение сердца сопровождается периодом отдыха для сердечной мышцы. Каждая волна сокращения и последующий за ней период покоя составляют сердечный цикл.

Исследовательская работа дала физиологам возможность выяснить, что сердечная мышца работает или сокращается примерно в одной трети времени жизни человека. Период покоя короче во время большей физической нагрузки и длиннее, когда тело находится в состоянии покоя.

Каждый сердечный цикл состоит из трех фаз: физиологи назвали первую фазу короткого сокращения обеих предсердий-систолу предсердий. Они назвали вторую фазу более длительным сокращением обоих желудочков-желудочковой систолы. Период покоя сердечной мышцы называется диастол.

4,6(52 оценок)
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Ответ:
Ника12040000
Ника12040000
29.09.2021

1)The teacher asked me to hand in my homework following morning.

2)Sammy told his mom that he didn't want to go to school that day.

3)John told us that he would buy some milk on his way home from work.

4)Lucy told Roy that Tommy hadn't finished eating his dinner.

5)Sue told Harry that her mother would be able to look after the children the following week.

6)Tony's father told us that his son had been practicing the piano night before.

7)Diane told that she had seen Jean two months before.

8)Don told that Mr. White was coming to his café for a cup of coffee every morning.

9)Lan told Ben that Eric had just opened his new shop.

10)Clare told Alan that he had pay the bills on Monday.

1)Mark asked me if I had gone to Bill’s party the night before.

2)He asked what my first book had been about.

3)Paul asked Tina where she had gone on Sunday night.

4)She asked me if I had travelled to many exotic places.

5)Crla asked Richard if he would drive her to work that day.

6)The man asked how my latest book was called.

7)Sara wondered why he was so late for the meeting.

8)The boy asked me if I liked reading comics.

9)She asked her mother if she would be able to go to the cinema that weekend.

10)The teacher asked me how old I was when I had been started learning English.

1)The manager told me not to be rude to the customers.

2)Father asked me to clean the shop in the morning.

3)Mum told me not to forget to lock the kitchen door.

4)The zoo keeper told to stay away from the crocodiles.

5)The guide asked us not to use our mobile phones there.

6)The policeman told robber to put his gun down.

7)The teacher asked us to sit down and open our books..

8)The agent said to the tourist to keep his credit card with him.

9)My friend asked me not to be late for his birthday party.

10)Tom's dad told me to come and stay w them that weekend.

4,8(14 оценок)
Ответ:
Полькаа1642
Полькаа1642
29.09.2021

He has never seen such beautiful pictures.He liked the museum very much.

5 We have just spoken to the Dean about it.

6 Have you already sent the letter? Yes,I have.

7 Help me, please.I"ve lost my key and can't enter my room.

8 Have you ever seen this film?

9 Let's go to the canteen.No, thanks.I"ve just had breakfast.

10 Why have you switched the light on?It's still light in the room.

11 Have you taken my exercise-book?No,I haven't.Who has taken it?

12 They"re going to sell their house.Have you heard anything about it?

13 The students have just spoken to the lecturer about it.

14 Have you already received an answer from Ann?No,we haven't.We haven't written her yet.

4,7(24 оценок)
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