7．We may know from the scientific findings that ________.

　　A．the earlier you start to learn a second language the higher the grey matter density is

　　B．there is no difference between a later second language learner and one knowing a second language

　　C．the experience of learning a second language has bad effect on people’s brain

　　D．the ability of learning a second language is changing all the time

　　解析：选A。推理判断题。根据第五段得知。

　　8．In the last two paragraphs, the author wants to tell us that ________.

　　A．learning a second language is the same as studying maths

　　B．early learning of a second language helps you a great deal in study other subjects

　　C．Italian is the best choice for you as a second language

　　D．you’d better choose the ages between 2 and 34 to learn a second language

　　解析：选B。主旨大意题。作者在最后两段继续阐述其中心论点：即外语的学习宜早不宜迟。

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