问题补充：
I have a little brother who is 11 years this year. We get on well with each other and have had a good times together. Several days ago, I bought a book to him. The book is written by those which have won Nobel Prize and it aim to help children learn about the unknown world. Before I bought the book, I have read it. I felt that it is a good book for him, because he is interesting in new things and has so much questions. I hope that through reading book, my brother can learn more about the world and know how to do a good person.years后加old
答案：
(答案→)years后加old
解析：文章介绍作者给弟弟买了一本由获得诺贝尔奖的人写的书。希望通过读这本书，弟弟能够更多的了解这个世界，学会做个好人。
【小题1】我有一个小弟弟今年11岁。…Years old“多大岁数”，
【小题2】我们相处的很好，玩的很愉快。Have a good time“玩得愉快”
【小题3】几天前，我给他买了一本书。Buy sth for sb.为某人买…
【小题4】书是由获得诺贝尔奖的人写的。这里是定语从句，先行词是those那些人，定语从句用which → who
【小题5】它的目的是帮助孩子了解未知的世界。考查动词“旨在”，主语是it，谓语用单数：aims
【小题6】在我买这本书前，我已经读过了。因为是过去买的，所以是过去的过去的动作，用过去完成时：have → had
【小题7】我感觉这对他来说是一本好书，因为他对新事物很感兴趣。修饰人用interested
【小题8】修饰可数名词复数questions用many
【小题9】我希望通过读这本书，我弟弟能够更多的了解这个世界。这本书是特指：reading 后加the
【小题10】知道怎么做个好人。这里是be a good person系表结构，
