任务型读写（满分5分）
You Are What You Eat
Keeping better eating habits can help you reduce (减少) disease. A healthy eating plan means choosing the right food to eat and preparing food in a healthy way.
Toothbrush
Do you often change your toothbrush? Maybe you think it is not necessary. A study shows old toothbrushes bring disease You should often change your toothbrush.
Exercise
Swimming, running, skating, skiing, dancing, walking and some other activities can help you keep healthy. You should exercise at least three times a week and for twenty minutes or more each time. Do it.
Plan Out(规划) Your Life
You should have breakfast before you go to school. Have a proper (合适的) meal for lunch. Follow a healthy diet（饮食）.
【小题1】 How often should you exercise？(1分)
【小题2】A healthy eating plan means （1分）
【小题3】 How to plan out your life?（2分）
【小题4】 You should have breakfast before you go to school.（改成否定句1分）You should exercise at least three times a week
网友回答
(答案→)You should exercise at least three times a week
解析：
【小题1】根据文中You should exercise at least three times a week可知，每周至少三次。
【小题2】根据A healthy eating plan means choosing the right food to eat and preparing food in a healthy way可知，本题的答案是choosing the right food to eat and preparing food in a healthy way。
【小题3】根据Plan Out(规划) Your Life中的内容可知，本题的答案是You should have breakfast before you go to school. Have a proper (合适的) meal for lunch. Follow a healthy diet（饮食）。
【小题4】本句中有情态动词should，变否定句时，应该在其后加上not，故本题的答案是You should not have breakfast before you go to school.