Question

do you know that the human body and a car have something in common? both need tune - ups to work efficiently. just as a car engine needs oil to make the parts go, a body needs oxygen to work. exercise helps bring more oxygen to the body. so you might say that exercise is a tune - up for the body.
not only does exercise help the body by increasing the flow of oxygen, but it helps the heart, too. even a simple walk can make the heart pump faster. by pumping faster, the heart works harder and becomes stronger. therefore, exercise can help keep your heart young and healthy.
besides these two very important reasons to exercise, activity can help a person feel better. exercise such as swimming, bicycling, and walking can be fun and relaxing. experts say that exercise reduces stress and makes a person more cheerful.
remember, your body, like a car, is made to move. when it doesnt, things start to break down. its up to you to make sure that your body is in top condition.

1. in one paragraph, summarize the main idea of this article.
2. why is your body like a car?
3. what three important benefits does exercise give you?
4. what is oxygen?

Explanation:

1. The article compares the human body to a car, stating both need 'tune - ups' to function well. Exercise is that 'tune - up' for the body, increasing oxygen flow, strengthening the heart, reducing stress, and making a person feel better. It emphasizes the importance of exercise to keep the body in top condition.
2. Both the human body and a car need 'tune - ups' to work efficiently. A car engine needs oil and a body needs oxygen, and both are made to move.
3. Exercise increases oxygen flow to the body, strengthens the heart, and reduces stress and makes a person more cheerful.
4. Oxygen is a gas that the body needs to work. Exercise helps bring more of it to the body.

Answer:

1. The article emphasizes that exercise is crucial for the body as it is like a 'tune - up', increasing oxygen flow, strengthening the heart, reducing stress, and keeping the body in good condition, similar to how a car needs maintenance to work well.
2. They both need 'tune - ups' to work efficiently, with a car needing oil and a body needing oxygen, and both are designed to move.
3. Increases oxygen flow, strengthens the heart, reduces stress and makes one more cheerful.
4. A gas the body requires to function.