题目内容：

    Parents can cut the chances of their children getting fat simply by keeping them longer at table. Just three extra minutes at a family mealtime could help prevent child fatness. The reasons might lie in communication and the importance of a scheduled mealtime.

Dr Barbara Fiese said, “Children, whose families have a 20-minute meal over four times a week, weigh lighter than kids who leave the table after15 to 17 minutes. Over time, those extra minutes per meal add up and become really powerful.”

Researchers studied 200 family mealtimes, testing the influences of mealtime habits of families with children in primary school. They found that families, who said that shared mealtimes were an important part of family life and had special meaning for them, were less likely to have fat children. Similarly, families who talked more together and communicated more positively during the meal, were more likely to have healthy-weight children.

Teaching families how to make full use of family mealtimes was a wise idea. “This is something we can do and teach. It’s also important to recognize the increasing differences of families and their complex living schedules that may challenge(挑战) their abilities to plan ahead and set some time to communicate with each other,” said Dr Fiese.

Families in poorer US neighborhoods faced more problems, including poor chances of getting healthy food. But even so, regular high quality family mealtimes made a difference to the children’s weight. Dr Fiese said, “Three to four extra minutes per meal will make a healthy weight more possible.”

1.How long is reasonable for a family mealtime according to the text?

A.About 10 minutes. B.About 12 minutes

C.About 15 minutes D.About 20 minutes.

2.What’s the advantage of a longer family mealtime according to the text?

A.Children can better enjoy their meals.

B.Children can have a good rest while eating.

C.Children can communicate more during the time.

D.Children can have more time to choose what they like.

3.What does the author want to show in paragraph3?

A.The result of a study. B.Different eating habits.

C.Causes of child fatness. D.The importance of normal eating

4.What can be the best title for the text?

A.Mealtime talk helps to lose weight

B.Healthy food makes normal weigh

C.Poorer families have thinner children

D.Longer family mealtimes help prevent child fatness