Why some youngsters approach food as an adventure and others insist on mono-meals of macaroni (通心粉) cheese? It turns out kids' tastes for food don't happen by accident. Studies show that children prefer the flavors they experience early on, including while they're in the womb (子宫). A doctor is drawing on that research to help get more pregnant and nursing women to eat healthy and varied diets because doing so will make their babies tend to eat what's good for them. According to Alan Greene, a professor on children health at Stanford University and the author of the new Feeding Baby Green, children can acquire what he calls nutritional intelligence, which will help them choose healthy food later in life. And this intelligence springs from food impress, which begins during pregnancy. "How a child learns to eat is one of the most important health issues in this country," he says, "It's learned behavior." In his book, Greene paints a vivid picture of the budding foodie. A fetus (胎儿) in the second and third month has highly sensitive taste buds that get to experience whatever mom is eating. Fetuses remember flavors from this time in the womb and seek them out after birth. This process explains why adopted infants, when swept off to a new culture, years later prefer their native foods even though they may never have actually eaten them in the conventional sense. A study published last year in a scientific journal revealed the long-term effect of food impress. In the experiment, half of the pregnant and nursing animals were given a balanced diet of healthy foods. The other half ate some healthy food, as well as a large amount of items filled with sugar, salt and fat. Scientists found that offspring of the animals who had eaten only healthy items tended to choose those same healthy items when they became adults. They were also significantly more likely to have normal weight, blood sugar, etc. compared with the junk-food-eaters' offspring, who made less healthy choices as adults and were significantly more likely to be fat.1. To shape her baby a healthy food habit, a pregnant woman should ________.A) learn to eat green food onlyB) make a balanced food choice C) get rid of her own food preferenceD) promote her nutritional intelligence2. Prof. Greene's research is to find out ________.A) the differences between youngsters and children's food preferencesB) the differences between food impress and nutritional intelligenceC) whether food preference is acquired by nature or learned behaviorD) whether mothers' food habit during pregnancy has influence on their kids' food preference 3. The expression "budding foodie" (Para. 3) can be best replaced by ________.A) growing eater B) new food choiceC) increasing appetiteD) developing preference4. The animal experiment mentioned in the last two paragraphs can prove that ________.A) animals have the same food preference as human beings doB) animals tend to choose healthy food when they become adultsC) animals have much longer food impress effect than human beings doD) animals will experience similar influence of food choice as human beings do 5. It can be inferred from the passage that ________.A) fetus will have a vivid picture of what their mother once eatB) the nutritional intelligence can only be acquired in one's childhoodC) a healthy diet should contain no large amount of sugar, salt and fat D) adopted children will not develop their preference for their local food