1 . Today's world is not an easy adjustment for young adults. Key skill set for success is persistence (毅力), a characteristic that researchers say is heavily influenced by fathers. Researchers from Brigham Young University discovered that fathers are in a unique position to help their adolescent children learn persistence.

BYU professors Laura Padilla-Walker and Randal Day arrived at these findings after following 325 American families over several years. And over time，the persistence gained through fathers led to higher achievement in school.

"There are relatively few studies that stress the unique role of fathers，"Padilla-Walker said. "This research also helps to prove that characteristics such as persistence-which can be taught-are key to a child's life success.”

Researchers determined that dads need to practice an "authoritative" parenting style. Authoritative parenting is not authoritarian:rigid，demanding or controlling. Rather，an authoritative parenting style includes some of the following characteristics:children feel warmth and love from their father；responsibility and the reasons behind rules are stressed children are given an appropriate level of autonomy(自主权).

In the study，about 52 percent of the dads exhibited above-average levels of authoritative parenting. A key finding is that over time，children raised by an authoritative father were significantly more likely to develop persistence，which leads to better outcomes in school.

This particular study examined 11 to 14-year-olds living in two-parent homes. Yet the researchers suggest that single parents still may play a role in teaching the benefits of persistence，which is an avenue of future research.

1. What is special about the BYU professors' study?

A．It centered on fathers' role in parenting.

B．It was based on a number of large families.

C．It analyzed different kinds of parenting styles.

D．It aimed to improve kids' achievement in school.

2. What would an authoritative father do when raising his children?

A．Ignore their demands.	B．Make decisions for them.
C．Control their behaviors.	D．Explain the rules to them.

3. Which group can be a focus of future studies according to the researchers?

A．Single parents.

B．Children aged from 11 to 14.

C．Authoritarian fathers.

D．Mothers in two-parent homes.

4. Which of the following is the best title for the text?

A．Three Characteristics of Authoritative Fathers.

B．Key Skills for Young Adults to Succeed in Future.

C．Children Tend to Learn Determination from Father.

D．Family Relationship Influences School Performance.