1. Fill in the gaps with the missing remarks
Teacher: Good day. Nice to see you.
Student:
Teacher: Imagine that you see your friend in the crowd. You want him to notice you. It is so
noisy in the street. What will you do?
Student:
Teacher: Yes, you will shout very loudly. It means you shout at the top of the lungs.
Lets see how strong our lungs are.
2. Look at the picture and writes down the English names of the respiratory organs.
Nose
1.; 2.; 3.; 3.; 4.( bronchus, bronchi); 5.; 6.; 7.
3.Study the new words
1. respiratory system
2. to bring oxygen
3. to remove carbon dioxide
4. breathing-
5. inspiration -
6. expiration-
7. small sacs
8. mediastinum-
9. covered by the pleura
10. base
11. apex
12. border
13. surface
14. vital capacity
15. fill with the air
16. absorb oxygen
17. waste product
18. expel from the body
4. Read the text. Translate the sentences with the new words from ex.3.
The Respiratory System
The respiratory system brings oxygen into the body and removes carbon dioxide. This process is called breathing. It consists of inspiration and expiration. The organs of this system are the nose, pharynx, larynx, trachea and lungs. When you breathe, air travels through your nose, down the trachea, and into bronchi. These bronchi branch into smaller passages called bronchioles and finally into small sacs called alveoli.
The lungs are the most important organs of the respiratory system. There are two lungs in the body. The right lung has three lobes and the left lung has only two lobes. The lungs are separated by the mediastinum and covered by the pleura. They have bases, apexes, borders and surfaces. The average vital capacity is about 3-4 liters.
During inspiration, the alveoli in the lungs are filled with air. It is here that oxygen is exchanged for carbon dioxide. Blood cells absorb oxygen from the capillaries in the alveoli, as carbon dioxide, a waste product, is released back into the lungs from the veins. During expiration, the carbon dioxide is expelled from the body. Oxygen-rich blood then travels to the heart so it can be pumped back to the body where it is needed.
5. Answer the questions
1. What does the respiratory system does?
2. What does the breathing process consist of?
3. What are the organs of the respiratory system?
6. Complete the sentences
1. Lungs are
2. There are two
3. The right lung
4. The left lung
5. The lungs are separated
6. The lungs have
7. Their vital capacity is
7. Put the sentences into the logical order
When you breathe, the air:
- travels down the throat through the larynx and trachea.
- one bronchus leads to the right lung and one to the left lung
- bronchioles end in tiny air sacs called alveoli
- goes into the lungs through tubes called bronchi
- in the lungs, the bronchi divide into smaller bronchi
- enters the body through the nose or the mouth
- and then into even smaller tubes called bronchioles
8.Fill in the gaps using the text The Respiratory System.
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1. _______________branch into smaller passages called bronchioles.
2. The alveoli in the lungs are filled with air during __________________.
3. Oxygen is exchanged for carbon dioxide in the ___________________.
4. ______________ absorb oxygen from the capillaries in the alveoli.
5. _______________is released back into the lungs from the veins.
6. The carbon dioxide is expelled from the body during _______________.
9. Study the idiomatic expressions. Learn them
1. be led by the nose by-
2. follow ones nose-
3. have a nose for-
4. look down ones nose-
5. with ones nose in the air-
6. not to see beyond the end of ones nose-
10. Translate into English.
1. .
2. , .
3. .
4. , .
5. , .
6. .
11. Speak about the respiratory system
