Not long ago， many people believed that babies only wanted food and to be kept warm and Some people thought babies were not able to learn things until they were five or six months 不久之前，许多人认为婴儿的基本需求是食物和保持温暖干燥人们以为婴儿只有到了五六个月大的时候才会开始学东西Yet doctors in the United States say babies begin learning on their first day of The Eunice Kennedy Shriver National Institute of Child Health and Human Development is a federal government Its goal is to identify which experiences can influence healthy development in human 然而，美国的医生声称婴儿在他们出生的头几天便开始学习肯尼迪施莱佛国立儿童健康和人类发展机构是联邦政府代理机构，他的目标是鉴别那些能影响人类健康发展的经验Research scientists at the institute note that babies are strongly influenced by their They say a baby will smile if her mother does something the baby A baby learns to get the best care possible by smiling to please her mother or other This is how babies learn to connect and communicate with other human beings该机构的调查科学家们注意到婴儿很大程度上受环境的影响，如果婴儿的母亲做了什么他们喜欢的事情，这个婴儿就会笑婴儿学着通过微笑来愉悦母亲或者监护人来达到得到最好的照料的目的这就是婴儿如何学习与他人联系交流的方式
