阅读理解。 Your body, which has close relations with the food you eat, is the most important thing you own, so it needs proper treatment and proper nourishment (营养). The old saying'An apple a day keeps the doctor away. 'is not as silly as some people think. The body needs fruits and vegetables because they contain vitamin C. Many people take extra vitamins in pill form (丸剂) ,  believing that these will make them healthy. But a good diet is made up of nourishing food and this gives all the vitamins you need.  The body doesn't need or use extra vitamins, so why waste money on them? In the modern western world, many people are too busy to bother about eating properly. They throw away the good habits and throw anything into their stomachs, eating hurriedly and carelessly. The illnesses caused or made worse by bad, eating habits are frightening. 1. From the first sentence we know that ____. A. the more you eat,the better you will feel B. your body is made up of the food you eat C. what you eat has great effect on your health D. all kinds of food you eat can be made into your nourishment 2. How do you understand the old saying underlined in Paragraph 1? A. Doctors are no longer necessary if we eat an apple every day. B. Eating apples regularly brings lots of benefits to our health. C. The apple is the best among all kinds of fruits. D. Eating apple is a good way to cure illnesses. 3. In modern western countries, ____. A. people are only too busy to cook meals for themselves B. people don't want to pay more attention to their eating C. people throw everything into their stomachs without digestion D. lots of people's illnesses are caused or made worse by bad eating habits 4. If we want to keep healthy,we should _____ . A. eat properly B. only eat an apple a day C. take as many vitamin pills as possible D. throw everything into our stomachs slowly and carefully