[单项选择]Watching television is an important activity of children. Children in the United States watch an average of three to four hours of television a day. By the time of high school graduation(毕业), they will have spent more time watching television than they have in the classroom.
Time spent watching television takes away from important activities, such as reading, school work, playing, exercise, and family talks. Children who watch a lot of television are likely to.
· Have lower grades in school
· Read fewer books
· Have problems with attention
· Exercise less
· Be too fat
Parents can help by:
· Watching programs with children
· Selecting appropriate (恰当的) shows
· Placing time limits on the television watching
· Turning off the TV during family meals and study time
Choose shows that meet the developmental (发展的，成长的) needs of your child. Some children’s shows on TV are good, but soap operas, and adult talk shows are not. Set certain
A. not do well in their studies.
B. have little difficulty paying attention to one thing
C. do more exercise

[单项选择]Watching television is an important activity of children. Children in the United States watch an average of three to four hours of television a day. By the time of high school graduation(毕业), they will have spent more time watching television than they have in the classroom.
Time spent watching television takes away from important activities, such as reading, school work, playing, exercise, and family talks. Children who watch a lot of television are likely to.
· Have lower grades in school
· Read fewer books
· Have problems with attention
· Exercise less
· Be too fat
Parents can help by:
· Watching programs with children
· Selecting appropriate (恰当的) shows
· Placing time limits on the television watching
· Turning off the TV during family meals and study time
Choose shows that meet the developmental (发展的，成长的) needs of your child. Some children’s shows on TV are good, but soap operas, and adult talk shows are not. Set certain
A. the advantages and disadvantages of watching TV
B. the disadvantages of watching TV and suggestions for the parents
C. the disadvantages of watching TV

[单项选择]The most important economic activity in Canada is ______.
A. mining B. fishing
C. farming D. manufacturing

[单项选择] -----was the most important economic activity in the US until about 1800.
A. Agriculture, which
B. If agriculture
C. Agriculture
D. There was agriculture

[单项选择]While watching television, （）
A. the doorbell rang
B. the bell of the door was ringing
C. we heard the doorbell ring
D. we rang the doorbell

[单项选择]As a project manager, the most important activity to ensure customer and stakeholder satisfaction is （）.
A. documenting the performance measurements
B. reporting changes and updating the project plan and other project documents where appropriate
C. reporting project status timely and regularly
D. documenting the requirements

[填空题]There is nothing worth watching on the television, so we ________________(倒不如去看电影).

[填空题]For most people television is the most important ______.

[填空题] Television now plays such an important part in so many people’’s lives that it is (36)_________for us to try to decide whether is a (37)_________or a curse. Obviously television has both (38)_________and disadvantages. But do the former (39)_________ the latter In the first place, television is not only a convenient source of entertainment, but also a (40)_________cheap one. They just sit comfortably at home and enjoy (41)_________series of programmes rather than to go out in search of (42)_________ elsewhere. Some people, however, (43)_________ that this is precisely where the danger lies. The television viewer needs to do nothing. (44) __________________. Secondly, television keeps one informed about current events, allows one to follow the latest developments in science and politics. Yet here again there is a danger. The television screen itself has a terrible, almost physical fascination for us. (45) __________________. There are many other arguments for and against