6) Few pastimes bring a family closer together than gathering around and listening to mother or father read good story
7) Man differs most from all the other animals in his ability to learn and use language but we still do not know exactly how this is done.
8) Generally speaking(In general), young people are less conservative(保守)than old people.
9) The way the brain works is far more complicated than they had thought.
10) The more scientists find out, the more questions they are unable to answer.