题目内容：

When you sit and watch TV hour after hour, do you ever think of what it may be doing to your health?

More and more children are becoming overweight（超重）and near-sighted ___41_ they spend too much time in front of the TV. Also, they are growing less and less creative（有创造性的）because watching TV doesn’t __42__ any active thought.

Last week, the TV-Turnoff Organization began its ninth TV-Turnoff __43__ in the USA. The Organization encourages people to play games, read books, lie under a tree, talk to family members and friends __44___ watching TV.

American school children __45__, on average(平均), 1000 hours a year watching TV--more time than they spend in school. That’s too much, said the doctors __46__organized this year’s TV-Turnoff Week.

Doctors said that the __47_ children watch television, the more overweight they may become. The food children eat while they watch the television makes this weight __48_ more serious.

To keep mentally and physically healthy, children need to take exercise, talk with friends and family, read, and __49_ the world around them. Could you go a week without television? It might be __50__ 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. fewer        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