Рассмотрим ответы на Страница 145 из учебника по английскому языку для 6 класса Комаровой
4 Read the text and answer the questions.
Heart rate
When we do sports or any exercise, our muscles need more oxygen. Oxygen travels around the body in the blood and it is the heart which pumps blood round the body — it needs to be strong to do this. The heart muscle contracts or beats automatically and this is your heart rate. In adults this heart rate is normally about 70 beats per minute. For children, the heart rate is about 100 beats per minute. When we do exercise our heart rate goes up because the heart beats faster, so that more oxygen can travel to the muscles that need it.
1 How does oxygen travel around the body?
2 What is the normal heart rate for adults?
3 What is the normal heart rate in children?
4 What happens to the heart rate when we exercise?
Project
Test your heart rate when you exercise and show your results to your classmates and teacher.
Plan
Copy this table in your notebook.
Heartbeat experiment
Number of heartbeats per minute when relaxed
Number of heartbeats per minute after doing some activity
Number of heartbeats per minute after doing a lot of activity
Research
Find your normal heart rate:
1 Find your pulse on your wrist. Count how many times your heart beats in 30 seconds.
2 Multiply the number by two to find your normal heart rate.
3 Make a note of this number in the table.
Prepare
1 Walk around the room for one minute. Take your pulse again and make a note of your heart rate.
2 Now run as fast as you can for two minutes.
3 Take your pulse again and make a note of your heart rate.
4 Fill in the table with your heart rate results.
Present your material
Make a graph to show the changes in your heart rate with activity. Write a description of the experiment and compare with your classmates.
4 Read the text and answer the questions.
Heart rate
When we do sports or any exercise, our muscles need more oxygen. Oxygen travels around the body in the blood and it is the heart which pumps blood round the body — it needs to be strong to do this. The heart muscle contracts or beats automatically and this is your heart rate. In adults this heart rate is normally about 70 beats per minute. For children, the heart rate is about 100 beats per minute. When we do exercise our heart rate goes up because the heart beats faster, so that more oxygen can travel to the muscles that need it.
1 How does oxygen travel around the body?
2 What is the normal heart rate for adults?
3 What is the normal heart rate in children?
4 What happens to the heart rate when we exercise?
Project
Test your heart rate when you exercise and show your results to your classmates and teacher.
Plan
Copy this table in your notebook.
Heartbeat experiment
Number of heartbeats per minute when relaxed
Number of heartbeats per minute after doing some activity
Number of heartbeats per minute after doing a lot of activity
Research
Find your normal heart rate:
1 Find your pulse on your wrist. Count how many times your heart beats in 30 seconds.
2 Multiply the number by two to find your normal heart rate.
3 Make a note of this number in the table.
Prepare
1 Walk around the room for one minute. Take your pulse again and make a note of your heart rate.
2 Now run as fast as you can for two minutes.
3 Take your pulse again and make a note of your heart rate.
4 Fill in the table with your heart rate results.
Present your material
Make a graph to show the changes in your heart rate with activity. Write a description of the experiment and compare with your classmates.
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