B．wealth

　　C．experience

　　D．practice

　　30．A.as

　　B．but

　　C．or

　　D．and

　　Ⅲ.阅读理解

　　A

　　It is often considered that the schoolyard is where bullies(欺负)go to make other kids a miserable school life, but a new study suggests that classrooms are another popular place.

　　The study，presented recently at the American Public Health Association's yearly meeting in Philadelphia，is based on the results of the research from more than 10,000 middle­school students who answered questions online.

　　Of those researched,43%said they'd been physically bullied within the last month.A bit more than half said they'd been laughed at in an unfriendly way, and half reported being called hurtful names.About one­third said groups had excluded (排斥)them to hurt their feelings.28% said their belongings had been taken or broken；21%said someone threatened to hurt them.According to the results，two­thirds of the students said they'd been bullied in more than one way over the previous month.

　　The study authors mentioned that 8% of the students who answered said they'd missed school at least once during the school year because of fear of being bullied. 25% said they'd taken other actions，such as missing recess(课间)，not going to the bathroom or lunch，missing classes，or staying away from some area of the school to escape from experiencing a bully.

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