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While we are still children ,most of us live at home with our parents, more or less peacefully . But as we become teenagers , things change ,and we begin to grow apart from our parents . This means we are almost ready to leave the house where we grew up and make a new home of our own .
All humans must do this ,but they don’t all do it in the same way . If ,for instance ,you belong to a primitive tribe (原始部落) ，then as you grew up ,you’d learn the skills you needed as an adult---how to catch fish ,how to keep the house and look after children . You would be ready to marry in your early teens and you would build a house and live near your family in the village.
This seems a very old way of life , but it is what humans have been used to through hundreds of years. And it is what we are still used to in the 21st century ,for man hasn’t changed in the short time since he became civilized(文明的). But could you leave home and look after yourself during the teen years ? Most people would not do very well . Why ? Because although man hasn’t changed very much , the society he lives in has changed greatly ,which means that we have to learn more and more before we are ready to leave our parents’ shelter( 居所 ) and live alone .
However ,sometimes it is very frustrating to live at parents’ home . Parents can be very upset about late nights ,criticizing friends and always saying that we are noisy and dirty . But we still need our emotional (情感的) shelter till we finish our studies , and that is why we usually stay in our parents’ home until we feel grown up enough to deal with living alone .
【小題1】When does the relationship with parents start changing ?

　　More and more children are becoming overweight and near-sighted　 1　 they spend too much time in front of the TV. Also, they are growing less and less creative since watching TV doesn’t　 2　 any active thought．

　　Last week, the TV-Turnoff Organization began its ninth W-Turnoff　 3　 in the US. The organization encourages people to play games, read books, lie under trees, talk to family members and friends　 4　 watching TV.

　　American school children　 5　 , on average, 1,000 hours a year watching TV--- more time than they spend in school. That’s too much, say the doctors　 6　 organized this year’s TV-Turnoff Week.

　　Doctors say that the　 7　 children watch television, the more overweight they may become. The food children eat while they watch the television makes this weight　 8　 more serious.

　　To keep mentally and physically healthy, children need to take exercise, talk with friends and family, read, and　 9　 the world around them. Could you go a week without television? It might be　 10　 for many TV lovers, but why not give it a try?

　　1.A. because 　　　　　　　　    B. until 　　　　　　   C. whether 　　　　 D. though

　　2.A. find 　　　　　　　　　　　　  B. need 　　　　　　  C. lose 　　　　　　   D. know

　　3.A. Day 　　　　　　　　　　　　  B. Week 　　　　　　 C. Month 　　　　   D. Year

　　4.A. together with 　　　　　　 B. because of 　　 C. lots of 　　　　   D. instead of

　　5.A. cost 　　　　 

　　　　　　　　 B. spend 　　　　    C. use 　　　　　　    D. do

　　6.A. whom 　　　　　　　　　　   B. whose 　　　　   C. which 　　　　    D. who

　　7.A. later 　　　　　　　　　　　　  B. earlier 　　　　    C. longer 　　　　    D. less

　　8.A. problem 　　　　　　　　    B. question 　　　　 C. thing 　　　　　　 D. lesson

　　9.A. explore 　　　　　　　　　　 B. invent 　　　　    C. find 　　　　　　   D. make

　　10.A. easy 　　　　　　　　　　    B. happy 　　　　    C. dangerous 　　  D. difficult

Give her the letter ______ she comes.

[    ]

　　A. when   B. while   C. until   D. since