单选题 When I was at school, our teacher told the class "You are what you eat." My friends and I would laugh and call each other “hamburger” and “biscuits”. Our teacher was trying to show us the importance of eating the right food to stay healthy.
Food influences our health. We"ve all heard advice such as, "Milk can make you sleepy. To stop feeling sleepy you should eat peanuts," or "Garlic(大蒜) helps you not to catch a cold." Everyone has their own advice to give, but some of these pieces of advice seem not to agree with each other.
But there does seem to be proof that we are what we eat. A few decades ago there were big campaigns to make British people healthier. We threw out our chip(薯条)pan which we had used until then to make chips every day for dinner. We replaced our chips with boiled potatoes. At first I felt like my potatoes had no taste at all. But after a while I started to prefer healthier food because I felt stronger and I didn"t get sick so often.
Japanese people are known to be the healthiest in the world because of the food they eat. The healthiest Japanese people eat rice and fish and vegetables every day. They drink green tea or water when they"re thirsty. The traditional Japanese food is famous for helping you to live a longer and healthier life.
When you know the effects of different types of food, you can use your knowledge well and eat what you want to become.

【正确答案】 C

【答案解析】推断题。从第三段的最后一句“But after a while I started to prefer healthier food because I felt stronger and I didn"t get sick so often.”可知，作者在吃了煮土豆之后身体变强壮了，也不常生病了。所以他任务煮土豆对他的健康有益。