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 fruit 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 list of illnesses caused or made worse by bad eating habits is frightening.
小题1:From the first sentence we know that ________
A．all kinds of food you eat can be made into nourishment
B．your body is make up of the food you eat
C．what you eat has great effect on your health
D．the more you eat, the better you will feel小题2: How do you understand the old saying underlined in the passage?
A．Eating apples regularly brings lots of benefits to our health.
B．Doctors are no longer necessary if we eat an apple every day.
C．The apple is the best among all kinds of fruits.
D．An apple is a good way to cure illnesses.小题3: What can we conclude from the second paragraph?
A．Our bodies need food, or we can’t live.
B．Often eating apples is a good habit.
C．Taking extra vitamin pills is completely useless.
D．A good diet is of great importance for our health.小题4:In modern western countries, ________.
A．people don’t want to pay more attention to their eating
B．lots of people’s illnesses are caused or made worse by bad eating habits
C．people throw everything into their stomachs without digestion
D．people are o
nly too busy to cook meals fro themselves小题5: If we want to keep healthy, we should ________ .
A．only eat an apple a day
B．eat properly
C．take as many vitamin pills as possible
D．throw everything into our stomachs slowly and carefully
RNHCH2R'+HCl(R和R'代表烃基） 
与浓硫酸、浓硝酸混合，在不同温度下会得到不同产物。 