his brothers;at school he respects his teachers and shares the feelings of his classmates. He treats those truly who are true to him. In a word,he has all the good characteristics （特征）that I don't have. I can follow him as a model. With his help I can be free from all difficulties.

　Indeed,if I have such a person as my friend, I shall never fear difficulty and I shall never know the existence of the word "failure".

21. This passage tells us .

A. how to make friends with others.

B. how to help friends

C. what kind of person the writer's friend is.

D. What kind of person we should make friends with.

22. According to the writer,an ideal friend refers to .

A. a friend without bad habits B. a famous man

C.a perfect man D. a respectable man

23.From the passage we can learn that .

A.the writer and his ideal friend have a lot to learn from each other

B.the writer has a lot to learn from his ideal friend

C.the writer's ideal friend has a lot to learn from him

D.the writer has only a little to learn from his ideal friend

　This is not a diet. It's a simple way to lose weight. You don't have to give up the food you love or join a gym. You just follow some habits thin people have. Keep them, and you'll become thin.

　◆Wake-up

　 When you wake up in the morning, sit up slowly without using your hands. With legs straight out, lean forward(前俯) until you feel sore(酸痛的) in your back. It will use up 10 calories.

　◆Start with soup

　 Order a clear soup, and have it before the main food. In this way, you'll feel fuller, so you'll eat less when the main food comes.

　◆An apple or more a day

　 Apples are full of fiber(纤维) and water, so your stomach will want less. Studies show that people who eat at least three apples or pears a day may lose weight.

　◆Talk it up

　 Every time you use the cell phone, stand up and walk around. Heavy people sit on average two and a half hours more each day than thin people. This skill is very important as standing up and walking around will burn up 50 or more calories.

　 Use these skills, and you will have a big weight loss.

24.The text is to encourage you to ______.

A.go on a diet B.give up your favorite foods

C.join a gym D.follow some habits of thin people

25.Which of the following ways is a good choice to become thin?