A car needs gas to run and your body also needs food to work for you. Eating the right kind of food is very important. It can help your body grow strong to take care of what you eat.

There are four main food groups altogether. The dairy group has food like milk, cheese and sour milk. The other three groups are the meat and fish group, the fruit and vegetable group, and the bread and rice group. Each meal should have at least one food from all four main groups. With all these food together, you will be given enough energy(能量)during the day.

  It is easy to get into bad eating habits. You may eat your breakfast in a hurry to get to school on time. Or you may not have time for a good lunch. It may seem easy to finish your supper with fish and chips all the time. But you will find your self tired in these days and you can not think quickly.

  Watching what you eat will help keep your body healthy and strong. It is also good to take some exercise. It will help you eat more if you take a walk or play games in the open air. Having a good eating habit with some exercise is the key to your health.

77. Which of the following diets do you think is the best one?

A. Eggs, tomatoes and chicken.

B. Milk, bread, cabbages and beef.

C. Corn, fish, cream and pork.

D. Rice, beancurd, apples, fish and chicken.

78. Which of the following is a good eating-habit?

A. Going to school without any breakfast.

B. Eating fish and chips for supper all the time.

C. Finishing your lunch in a very short time.

D. Having at least one food from all four groups each meal.

79. In this passage the writer mainly tells us that   

A. every person needs food to grow well

B. taking exercise can keep your body strong

C. right kind of food with exercise will keep you healthy

D. enough energy helps people think more quickly

80. The underlined word "dairy" in the second passage means   

  A. the shop that sells milk and butter 

  B. the food made out of cows such as milk and butter

  C. a farm where cows are kept

  D. a place where milk products are made

    Cats are creatures of habit. They like to go to sleep about the same time every day and for a certain length of time. They seem to have a natural clock inside them that tells them when to sleep. Cats increase their regular sleep with occasional cat naps(打盹). Some experts feel that humans could also benefit from this habit. Cat naps help to build up energy in the body. They are also a good way to get rid of trouble! Since cats have the same moods(情绪)as humans, some experts believe that people can improve their moods. People might become happier.

    A number of famous people have copied cats by taking cat naps during the day. The naps would usually last from 15 to 30 minutes. Winston Churchill took cat naps. So did Presidents Harry Truman, John F. Kennedy, and Lyndon B. Johnson. These famous men were known for their energy. They were also able to work long hours, often into the night. Napping was their secret.

73.From this selection we know that cats ________.

  A. do not have regular sleep

  B. have occasional sleep as well as naps every day

  C. take naps to add to their regular sleep

  D. take naps when they are not happy

74.Taking cat naps ________.

  A. will make a person lazy and tried   B. is a bad habit

  C. will make people feel better    D. can help people to become famous

75.Naps usually last ________.

  A. three hours                    B. less than half an hour

  C. forty-five minutes               D. fifty-five minutes

76.This selection was probably written to ________.

  A. show how lazy cats are                  B. talk about the habits of cats

  C. tell about famous people and their habits D. persuade people to take naps

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