求高中英语课文 [急]

Unit 13 we are what we eat
Choosing what to eat is no longer as easy as it once was.Our eating habits have changed,as has our way of life,and the fuel we need for our body is also different.Traditional diets often have too much fat and too many calories for the 21st-centurt person.If we want to keep with the high pace of modern life,we had better learn to make the right choices about what and how we eat.
Stores offer all kinds of food and snacks and we have to make many choices.When we choose what to buy and eat,we had better think whether the food willgive us the nutrients we need.Some nutrients help build our body and make it stronger.Protein,for exampel,is good for our muscles.Fish,meat and beans contain a lot of protein.Calcium,which is fond in eggs milk and other dairy product,is good for our bones and teeth.We should also eat carbohydrates,the main tuel for our body,which can get from breat,rice and noodles.other nutrients,such as fibre and minerals,help our bod