[填空题]For high school students, working more than 20 hours a week at a part-time job could be doing more harm than good, a new study suggests. These results (47) a number of recent studies that found no negative effects on students from working intensive hours, but researchers say that the (48) of their data, using advanced statistical measure, may account for this difference.
According to the study, students who worked more than 20 hours a week had lower (49) for educational attainment, lower school engagement, higher levels of substance abuse, and other problem behavior. However, these same students also showed more autonomous(自主) decision-making and had (50) higher grade point averages than teens without jobs.
Additionally, students who worked long hours still (51) negative outcomes up to a year after quitting or reducing hours; researchers advise that working long hours for a year or more of high school could have even

[填空题]For high school students, working more than 20 hours a week at a part-time job could be doing more harm than good, a new study suggests. These results (47) a number of recent studies that found no negative effects on students from working intensive hours, but researchers say that the (48) of their data, using advanced statistical measure, may account for this difference.
According to the study, students who worked more than 20 hours a week had lower (49) for educational attainment, lower school engagement, higher levels of substance abuse, and other problem behavior. However, these same students also showed more autonomous(自主) decision-making and had (50) higher grade point averages than teens without jobs.
Additionally, students who worked long hours still (51) negative outcomes up to a year after quitting or reducing hours; researchers advise that working long hours for a year or more of high school could have even

[填空题]More than five-thousand secondary school students _________________ (因为考试作弊而被学校开除).

[单项选择]

More Than a Ride to School
The National Education Association claims, "The school bus is a mirror of the community." They further add that, unfortunately, what appears on the exterior does not always reflect the reality of a chosen community. They are right -- sometimes it reflects more! Just ask Lies! Denson. Riding the school bus has been more than a ride to school for Lies!.
Bruce Hardy, school bus driver for Althouse Bus Company has been Liesl’s bus driver since kindergarten. Last year when Liesl’s family moved to Parkesburg, knowing her bus went by her new residence, she requested to ride the same bus.
This year Liesl is a senior and will enjoy her last year riding the bus. She says, "It’s been a great ride so far! My bus driver is so cool and has always been a good friend and a good listener. Sometimes when you’re a child adults do not think that what you have to say is important. Mr. Hardy always listens
A. "vehicle".
B. "device".
C. "need".
D. "reflection".

[单项选择] More Than a Ride to School
The National Education Association claims, "The school bus is a mirror of the community." They further add that, unfortunately, what appears on the exterior (外部) does not always reflect the reality of a chosen community. They are right, and sometimes it reflects more! Just ask Liesl Denson. Riding the school bus has been more than a ride to school for Liesl.
Bruce Hardy, school bus driver for Althouse Bus Company has been Liesl’s bus driver since kindergarten. Last year when Liesl’s family moved to Parkesburg, knowing her bus went by her new residence, she requested to ride the same bus.
This year Liesl is a senior and will enjoy her last year riding the bus. She says, "It’s been a great ride so far! My bus driver is so cool and has always been a good friend and a good listener. Sometimes when you’re a child adults do not think that what you have to say is important. Mr. Hardy always listens to what you have to say
A. For 30 years.
B. For 70 years.
C. Since last year.
D. Since 2000.