题目内容：

    It is no secret that physical activity is necessary to a person’s well-being. Because children are continuously developing physically and emotionally, they are especially affected by the benefits of activity. Former First Lady Michelle Obama’s Let’s Move initiative reports that nearly one-third of US children are overweight or obese, and that “schools are a key setting for kids to get their 60 minutes of play with moderate activity, given the significant portion of time they spend there.”

Physical education programs in schools directly benefit students’ physical health. Regular exercise promotes muscles and bone development. In addition to participating in physical activity, students in P.E. learn the fundamentals of a healthful lifestyle, the building blocks upon which they can develop into healthy, knowledgeable adults.

Though the lack of attention on P.E. is often justified as an opportunity to spend more time in the classroom, studies show that physical activity contributes to improved academic performance. Regular activity during the school day is strongly associated with higher concentration levels. A statewide policy in North Carolina requires that children from kindergarten to eighth grade participate in 30 minutes of physical activity each day.

Activities in P.E. help children develop healthful social interactions. From a young age, children learn cooperation through group activities and form a positive sense of identity as part of a team. Such group activities are continually important as children grow older. The International Platform on Sport and Development states that sport has been used as a practical tool to engage young people in their communities through volunteering, resulting in higher levels of leadership and community engagement among young people.

The benefits of P.E. to a child’s mental health are both complex and comprehensive. Improved physical health, academics and social interactions all contribute to good mental health. Physical activity sets the stage for a good night’s sleep, provides more energy to participate in hobbies and interact with others.

1.The first paragraph implies that            .

A.children are becoming much lazier nowadays

B.some schools have forbidden physical activity

C.most parents are dissatisfied with school education

D.schools must pay more attention to physical education

2.Physical education is ignored in a way because            .

A.children dislike taking physical activity B.schools are worried about children’s safety

C.students should have more time for study D.less sporting equipment is available to school children

3.What is the author’s possible attitude towards the policy in North Carolina?

A.Skeptical. B.Favorable.

C.Ambiguous. D.Objective.

4.Which is NOT a benefit of P. E. classes?

A.They assure you of a successful future. B.They keep your mind in a good state.

C.They help you focus on your studies. D.They do good to your social skills.