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4.再读1a，完成1b。
5.再读1a，完成围绕相关知识点所设计的任务。
6.跟读课文。
7.根据关键词复述课文。
8.进行有关电视对孩子影响是否有益的辩论赛。
四、当堂训练
American boys and girls love to watch television. Some children spend six hours a day in school and four to six hours a day in front of the television set. Some even watch television for eight hours or more on Saturday.
Televisions are like books or films. A child can learn bad things and good things from them. Some shows help children to understand the news and places from other countries or other times in history. With television a child does not have to go to the zoo to see animals or to the ocean to see a ship. Boys and girls can see a play, a concert or a game at home.
Television brings many places and events into our homes. Some programs show crime and other things that are bad for children, so parents sometimes help them to find other interesting things to do.
根据材料内容，选择最佳答案。
( )46. Children usually spend _______ a day in school in America.
A. six hours B. more than eight hours
C. only a few hours D. four hours
( )47. Some children spend eight hours more _______ on Sunday.
A. studying B. playing C. watching TV D. helping their parents
( )48. On television children can see _____.
A. games B. big animals C. oceans D. almost everything
( )49 “Television brings many places and events into our homes” means .
A. television makes things happen on homes
B. we can know places and events without going to see them.
C. we can see houses and buildings on TV.
D. we can find them easily.
( )50. Parents sometimes help their children find other things to do when there is ____ for
children.
A. a bad program B. an animal
C. a game D. an uninteresting film