Unit3Ahealthylife健康生活课件（新人教选修6）.ppt

The Importance of Healthy Eating 饮食对健康有很大的影响。如果你想保持健康，就应该多吃健康的食物。;Have you ever heard the saying “You are what you eat”？In some sense，this is true，because if you eat unhealthy food you are prone2 to be an unhealthy person.The food we eat is extremely important.Therefore，if you value your health，you should learn as much about healthy eating as possible. Healthy eating is important from the day we were born.As children，we grow rapidly and this is due in part to the food we eat.Food provides us not only with fuel to live our daily lives，but also with the substances2 that build our bones，muscles，and organ tissues.Not getting enough nutrients can cause a variety of problems.;Healthy eating is also important to maintain functions.In our daily lives，we use energy to think，walk，talk，breathe，and perform other actions.The energy comes from fat that remains in the body and our daily food intake.If you don’t eat healthy food，you will feel weak. Lastly，healthy eating is important to prevent illness.When we do not get the right nutrients，the body’s natural defense system against diseases will be weakened，allowing viruses and bacteria to attack the body.It’s like a well-trained army—if the army doesn’t have enough to eat，it will not do well in battle.;Learning how to eat healthy food is therefore an important lesson，and one which we should begin learning as children. 生词小贴士： 1．prone adj.有……倾向的　2.substance n．物质　3.nutrient n．营养物质　4.maintain v．保持