One possible answer to Warm-up: It depends. On one hand, I think it is reasonable for children to care for financial problems. If they do, they will learn that it is not easy for parents to earn money. Therefore, they will save money as long as it is possible. On the other hand, if they care too much for money, they will only concentrate on money. As a result, it will do harm to their mental growth and development. Worrying too much about money will overburden them and distract them from studying.

Key to the Questions for Text Comprehension

1. messages and values from television and from friends.
   
2. the parents.
   
3. paying certain amount of money each week.
   
4. they need more.

Key to the Exercises about the Text

I. Vocabulary:

II. Structure:

1. 1) What the old people need
   2) What the students ought to do
   3) What the disabled people need most
   
   
2. 1) no matter how hard I try
   2) no matter who he is
   3) no matter what way you adopt
   
   
3. 1) It's up to you to support your father.
   2) It's up to the students to decide whether to take the exam or not.
   3) It's up to us to help students improve their English.
   

III. Translation:

1. Children should be encouraged to solve the disputes among themselves.
   
2. One's monthly expenditure mainly depends on his monthly income.
   
3. You must try to find these materials no matter where you will search for them.
   
4. He insisted on seeing his daughter off at the airport though he didn't feel well.
   
5. What you need is what we should offer.
   
6. I suggest that you set aside half an hour each day for reading aloud.
   

(1) The topic sentence is: Baby-sitting with my brother is no fun.
(2) The difference is: Topic sentence usually tells about main idea while the other sentences tell about details that support the idea in topic sentence.
(3) The meaning of words change with time.
(4) The major problem is: There is neither topic sentence nor supporting details.