1、Unit 2Healthy eating营养专家们经过仔细研究为学生准备了丰富的午餐食谱。Whats for lunch?That question is on the minds of many food experts and nutritionists.The food we eat should help us grow and develop properly.Nutritionists study food to see if it is healthful or nutritious.What we eat at lunch can satisfy about onethird
2、of our daily food needs.So experts are studying school lunches.They believe that a healthful lunch should have many of the nutrients a student needs.A nutrient is the part of a food used by the body for growth and energy.Protein，fats，carbohydrates，vitamins，minerals，and calories，or food energy，are ex
3、amples of nutrients.Not all foods contain the same amount or kind of nutrients.Calories supply your body with energy.Protein is used by your body to replace and build new cells.Vitamins help you to grow.Vitamin D keeps bones healthy.Minerals，such as iron，move oxygen through the body.Nutritionists ha
4、ve learned that too much fat，sugar，and salt is not good for you.School dietitianskeep this in mind when they plan the lunch menu.But even a wellbalanced lunch will not nourish the student who just does not eat.So nutritionists are looking for ways to make school lunches taste better.Some school diet
5、itians are adding nutrients to favorites such as pizza，tacos，and milkshakes.1nutritionist n营养学家2protein n. 蛋白质3carbohydrate n. 糖类4dietitian n. 营养师5nourish vt. 营养6taco n. 墨西哥煎玉米粉卷1What kind of food should we eat?_2Should a wellbalanced lunch have too much fat，sugar and salt?_【答案】1.We should eat the food that can help us grow and develop properly.2.No.
