This weekend is Tim's ____(nine) birthday, he asked his father to buy him ____new ipad. But this worries Tim's father much, can Tim use the ipad ____ (correct)? Will it be a good or bad present for the little boy?

    We all know that the computer is a great ____ (invent) in the world, it is very ____ (use) for people's life. It's interesting for people ____ watch movies or play games with ipads or computers. Now ____ (million) of people are using it every day.____it also may be bad to young people in some ways. Some children are very ____ (interest) in playing games or reading books, it may hurt ____ (they) eyes and make their study worse. All the parents hope their children can find better ways of using it.

请据图填空（内填序号，横线上填文字）

眼虫、变形虫等属于____门，此门动物一般身体微小，结构简单，整个身体只有一个细胞构成；腔肠动物生活在水中，体壁由____层和中胶层构成，体内有消化腔，有口无肛门；爬行动物皮肤干燥而又粗糙，皮肤表面覆盖着无数角质的细鳞，可以____，适应陆地生活．