题目内容：

If you're concerned about gaining weight over the upcoming holiday season，consider eating more slowly and you might consume less，a study suggests.Diet experts have been promoting this advice for years，and now nutrition scientists at the University of Rhode Island have some new data to back it up.

They had 30 normal－weight，college－age women come into a laboratory for lunch on two separate occasions.Each time，the women were offered a huge plate full of delicious food，plus a glass of water.They were asked to eat until the point of comfortable fullness.On one occasion，they were instructed to eat as quickly as they could; on the other occasion they ate slowly and put down their spoons between bites.

They did not know the food and water was weighed before and after the meal to determine the amount consumed.Findings were: When eating quickly，the women consumed 646 calories in about nine minutes.When eating more slowly，they had an average of 579 calories in about 29 minutes.

“They ate 67 calories more in nine minutes than they did in 29 minutes，” says lead researcher Kathleen Melans.“If you add that up over three meals a day, that's a big difference in calories.”

“Upon completion of the meal and an hour afterward，the women were less satisfied and hungrier when eating quickly compared with when they ate slowly，” she says.They said they enjoyed the meal more when they were taking their time.Not surprisingly，the women drank more water when they ate more slowly，and researchers are doing a follow－up study on whether that factor contributed to their feeling fullness.

One way to help control calories intake during Thanksgiving is “to slow down and savor(品味) and enjoy your food more，” she says.

1.What is the difference between the two occasions on which these women had their lunch？

A. They reached different points of fullness.

B. They were provided with different amounts of food.

C. They ate their lunch at different speeds.

D. They were offered different kinds of food.

2.The aim of the study is to find whether speed influences____people eat.

A. how well    B. how much

C. what    D. the way

3.According to the passage，which of the following statements is TRUE？

A. These women didn't know the weight of the food until they finished the meal.

B. The food and water wasn't weighted until the end of the meal.

C. The amount of food consumed had little to do with the eating speed.

D. The more quickly they ate，the more calories they consumed.