[单项选择]Television plays a very important part (21) most people’s lives. It changes (22) way of seeing the world; it helps people know (23) in the world; it shows people and places in other countries. Children needn’t (24) to the zoo to see animals or (25) to see the ships. They can watch a play, a concert or a game (26) the television set. (27) , people can make themselves relaxed after one day’s work. However, some children spend four to six hours (28) TV, or even longer on weekends. Sometimes the program is not fit (29) children, so the parents should find them (30) to do.
A. when is happening B. what is happening C. what happening is

[单项选择]Television plays a very important part (21) most people’s lives. It changes (22) way of seeing the world; it helps people know (23) in the world; it shows people and places in other countries. Children needn’t (24) to the zoo to see animals or (25) to see the ships. They can watch a play, a concert or a game (26) the television set. (27) , people can make themselves relaxed after one day’s work. However, some children spend four to six hours (28) TV, or even longer on weekends. Sometimes the program is not fit (29) children, so the parents should find them (30) to do.
A. at B. in C. for

[单项选择]The design of the kite plays its part in determining the size of the flight envelope just as much
A. as wind strength does
B. than does wind strength
C. as does wind strength
D. than wind strength does

[简答题]Although human error plays its part, it is by no means the only cause of accidents.

[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]Peter plays the piano very well, （　） violin is his favorite instrument.
A. because
B. as
C. since
D. yet