номер 3, страница 50 - гдз по английскому языку 8 класс учебник Эванс, Дули

3. 8.1.1.1 8.3.5.1 8.3.6.1 Explain the words in bold. Then, in pairs, ask and answer questions based on the text.

A: What is a muscle?

B: It's a bundle of ... etc

Muscles

Except for thinking, everything we do depends on our muscles! Muscles allow us to sit, move, talk, write, read, breathe and even digest our food!

A muscle is a bundle of elastic tissue which becomes shorter and thicker when it 1)..... a signal from our nerves or hormones. There are three kinds of muscle: skeletal muscle, smooth muscle and cardiac muscle.

Skeletal muscles are also called voluntary muscles, because we can control their movement when we want to. These muscles vary in size and strength, from the small muscles around our eyes to the large, strong muscles of our thighs. They are attached 2)...... the bones of our skeleton, and each muscle can move a part of the body in a certain direction. Even quite simple actions, 3)..... as kicking a ball or smiling, require several muscle groups to work together.

Smooth muscles are in most of the body's internal organs. For example, smooth muscles in our stomach move food through our digestive system. Tiny muscles in our eyes 4)..... the pupil bigger or smaller when the light is bright or dark. All smooth muscles contract and relax automatically, 5)..... us needing to think about it, and so they are called involuntary muscles.

The third group, cardiac muscles, are only in the walls of the heart. These muscles contract and relax automatically in a powerful, regular rhythm to pump blood 6)..... our body. Our heart beats about 70 times a minute, every 7)...... minute of our lives, without ever resting.

Muscle tissue

Skeletal muscle

Smooth muscle

Cardiac muscle

Заполните пропуски в тексте, выбрав правильный вариант ответа для каждого номера.

Ответ:

1. D gets - получает

2. C to - к

3. D such - такой

4. B make - делают

5. A without - без

6. C around - по

7. B single - каждый