C) The health problems of children raised by a singleparent.

D) The deciding factor in children's academicperformance.

【详解】B)。推理判断题。讲座开头提到，一项最新研究发现，自制力弱的孩子成年后在健康、金钱和遵纪守法方面的表现都会比较差一些，接下来，讲座主要讲了孩子的自制力与未来成功的关系。

24. What does the study seem to show?

A) Children raised by single parents will have a hard timein their thirties.

B) Those with a criminal record mostly come from singleparent families.

C) Parents must learn to exercise self-control in front oftheir children.

D) Lack of self-control in parents is a disadvantage fortheir children.

【详解】D)。推理判断题。讲座中提到，研究中发现，自制力弱的孩子很有可能来自单亲家庭，家长健康状况不佳，吸毒现象严重，这种氛围对孩子的影响非常糟糕。上一代缺乏自控也会对下一代造成负面影响。

25. What does Moffitt say is the good news from theirstudy?

A) Self-control can be improved througheducation.

B) Self-control can improve one's financialsituation.

C) Self-control problems may be detected early inchildren.

D) Self-control problems will diminish as one growsup.

【详解】A)。细节推断题。讲座临近结束时提到了关于自制力的一个好消息，那就是自制力是可以通过教育来提升的，家长、学校都可以教导孩子以提高他们的自制力。

From a very early age, some children exhibit betterself-control than others. Now, a new study that began with about1,000 children in New Zealand has tracked how a child's lowself-control can predict poor health, money troubles and even acriminal record in their adult years. Researchers have beenstudying this group of children for decades now. Some of theirearliest observations have to do with the level of self-control theyoungsters displayed. Parents, teachers, even the kids themselves,score the youngsters on measures like “acting before thinking” and“persistence in reaching goals”. The children of the study are nowadults in their thirties. Terry Moffitt of Duke University and herresearch colleagues found that kids with self-control issues tendedto grow up to become adults with far more troubling set of issuesto deal with.

“The children who had the lowest self-control when theywere aged 3 to 10, later on had the most health problems in theirthirties and they had the worst financial situation and they weremore likely to have a criminal record and to be raising a child asa single parent on a very low income.”

Speaking from New Zealand via Skype, Moffitt explainedthat self-control problems were widely observed and weren't just afeature of a small group of misbehaving kids.