1、备课资料Background Information1. Healthy dietMost people, young or old, dont know how to plan a healthy diet. Some people eat too much, and some eat too little. Many people dont eat breakfast at all except for a cup of coffee, and most people eat a very heavy and greasy dinner. One important factor in a
2、 healthy diet is balance. A balanced diet contains enough amounts of food for the three meals of a day and a variety of foods such as vegetables, fruits, eggs, milk, cereals(谷类食品)and meat. For breakfast, which starts you off on a long days work, you need enough food to provide you with enough energy
3、. Lunch is equally important. If you dont store enough energy at lunchtime for a long afternoon of work, you will easily feel tired. But after dinner, normally you relax yourself and dont need much energy, so its preferable to have a light dinner. Moreover, varieties of food give you different kinds
4、 of nutrients your body needs. If your diet lacks variety, you are bound to be deficient in nutrition. Your diet is essential to your health. If you often feel tired or fall sick, its likely that you dont have a balanced diet.2. Fast foodIts Saturday afternoon and you are downtown with your friends.
5、 Youve been shopping all morning and youre hungry! But where are you going to eat? Theres a good chance that youll go to a fast food restaurant like Pizza Hut, Burger King or Wendys. The biggest problem is choosing one because there are so many.In the last thirty years fast food has become a major p
6、art of our diets. Fast food is cheap, easy to find and easy to eat. You can even eat a burger while you are driving. Try doing that with a bowl of spaghetti(意大利面条 )! Families stop at Pizza Hut on the way home from a day trip. Young people meet at McDonalds for a burger at lunchtime. Busy office work
7、ers buy nice sandwiches at Subway(赛百味三明治店). Its so quick and easy.But is fast food healthy? Richard Benton is a nutritionist and he says that fast food can be healthy food. “Most fast food restaurants have healthy choices like salads and thin chicken sandwiches, ” he says, “Fast food is OK as long a
8、s you dont eat too much of it. ”People who do eat too much fast food can have health problems. In the United States, 300 000 people a year die from illness related to obesity(肥胖症 ). Twenty percent of children in the United States are overweight. The problem has spread as Western fast food has become
9、 popular in countries like China, India and Japan. Five to ten percent of Chinese children are now overweight.Also, some fast foods have a lot of fat and sugar. Some health experts believe that high-fat and high-sugar foods change childrens behavior. A recent study in Japan found that badly behaved
10、children ate more fast food than well-behaved children.The good news is that fast food is changing. It is becoming healthier. Thai, Turkish(土耳其的), Japanese and Filipino fast food is becoming popular in the United States. You can have a quick snack in Elephant Jump(Thai), Jollibee(Filipino)or Yoshino
11、ya(Japanese)if you dont want a pizza.3. SnacksEven if we choose nutritious food for our main meals, we probably still need to refuel now and then. We can give our body and brain more energy by eating snacks. Good snacks should not have too much fat or sugar. That means that an apple, a banana, or an
12、 orange is a good choice, but a bar of chocolate or a bag of potato chips is not. Fruit gives us carbohydrates, which our body and brain use for energy. They also give us fibre and Vitamin C. Most fruits are naturally sweet and we can eat them just the way they areall we have to do is clean or peel
13、them.Fruit is not the only healthy snack. There are many recipes for simple and healthy snacks that can be prepared in about 15-20 minutes. Here are two recipes you can try.ShaomaiIngredients: pork, black mushrooms, chopped green onions, green beans, and Shaomai skins.Cut the pork and the black mush
14、rooms into pieces. Mix the pork, mushrooms, beans and the chopped onions in a bowl. Fill and fold the skins. Steam the Shaomai over boiling water for 7 or 8 minutes.Chicken Roll-upsIngredients: soft bread, chicken, bacon, one tomato, lettuce, cheese.Cook the chicken and cut it into small pieces. Fry the bacon and cut it into small pieces. Chop the tomato, and add some lettuce and the cheese. Mix them all together in a bowl. Spoon some of the mixture onto the bread and roll it up.
