单词辨义：what, how, where, who和how old怎么用好？

　　1.what意为什么，他最爱问个究竟，专门对句子的事物或一些名称进行提问。例如：

　　This is a bag. What is this?

　　My name is Wang Ming. Whats your name?

　　2.how意为怎样，他最爱关注人的身体情况或事物的性质。请看例句：

　　Jim is fine. How is Jim?

　　This picture is very good. How is the picture.

　　3.where意为哪儿，他最爱打听人家的出处，专门对地点进行提问。请看例句：

　　David is in his room. Where is David?

　　Lily is at school. Where is Lily?

　　4.who意为谁，他专爱对句中的人进行提问。请看例句：

　　That girl is my sister. Lily is eleven. 句中my sister和Lily均是指人，对其提问，非who莫属了。看看问句吧!

　　Who is that girl? 和 Who is eleven?

　　5.how old意为几岁，他专爱打听别人年龄。请看例句：

　　This girl is seven. How old is this girl?