Since the one-baby policy____小题1:____(carry) out in China, Chinese families have been shrinking from one with over 10 members to the other with only three including parents and one baby. Things are usually out of our expectation. Apart from the benefits____小题2:____have been mentioned enough, small families are now beginning to have ___小题3:___own problems. Because parents are having fewer children, they increasingly feel the need___小题4:___(control) the lives of those children. As a result, many children are becoming less___小题5:___(depend), determined and ambitious than in the past.

Parents today discourage their children from doing housework, extracurricular activities and socializing___小题6:___they fear it will interrupt their education.For example, when I was younger I wanted to learn the guitar___小题7:___my parents wouldn’t allow me because they believe it would distract me from my studies. They are happy as long as I perform___小题8:___(wonder) in my exams but don’t seem concerned about how I develop___小题9:___a person.

To some extent, I understand parents’ concerns, but I think they should love their children for___小题10:___they are, not what they want them to be. We deserve the chance to chase our own dreams and learn on our own. Even if we fail, we can learn from those failures.

简述动物细胞培养的特点与营养需求。