题目内容：

    Taking paternity leave (陪产假) shortly after the birth of a new son or daughter may be the key to developing strong father-child bonds that last for years, says new research from Ball State University.

“We find that 9-year-olds report greater satisfaction with father involvement,” said Richard Petts, a Ball State sociology professor who carried out the research with Chris Knoester at the Ohio State University and Jane Waldfogel at Columbia University. “They feel closer to their fathers and report better communication with their dads if their fathers take paternity leave, and especially if their fathers take two or more weeks of leave.”

“We found evidence that part of the reason why two or more weeks of paternity leave may lead to 9-year-olds expressing greater satisfaction seems to be that longer periods of paternity leave-taking link to parental relationship satisfaction,” said Petts.

The study is the latest in a series examining the effects of parental leave in the development of children and its influence on the family. It is also the first research known to assess the associations between paternity leave and children’s opinions of father-child relationship quality in the United States, Petts said.

Petts said the findings of the study will help families and policymakers (政策制定者) who aim to strengthen families and improve higher quality father-child relationships.

The present structure (结构) of paternity leave in the United States provides limited opportunities for fathers to take leave and, in fact, often discourages fathers from taking leave, he said.

“The possibility to take leave is often limited to higher-income families,” Petts said. “A lack of a national paid family leave policy limits access to important benefits for American families. The present structure may be increasing inequalities.” Petts said that providing equal access to paternity leave may help to change these patterns and strengthen family relationships.

1.How was the research probably carried out?

A.By tracking families. B.By talking with mothers.

C.By interviewing the kids. D.By recording children’s behavior.

2.What is found about paternity leave?

A.It makes young kids become dependent.

B.It is determined by parental relationships.

C.It encourages men to become better fathers.

D.It improves father-child relationship quality.

3.What do we know about the research?

A.It is welcomed by young fathers. B.It is the first to study parental leave.

C.It is probably helpful to policymakers. D.It is more important than similar studies.

4.What is the problem with the present structure of paternity leave in the US?

A.Paid paternity leave is only two weeks long.

B.There is no policy to encourage paternity leave.

C.Low-income families think little of paternity leave.

D.High-income fathers are too busy to take paternity leave.