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    Hi，my name is Eric．My  1 name is Li Mobai.I am an English boy．I 2 in China with my parents now．I'm tall and strong．I have short brown hair．

    Now,I  3  in N0．1 Middle school in Shanghai．I'm in Class l，Grade 7．I'm the class monitor．I can 4Chinese very well．I  5 maths and music，too．I 'm a member(成员)of the Music Club．I like 6 Chinese songs．Zhang Jie is my favourite star．I like sports very much．At weekends，I often play7 table tennis and basket

ball with my parents．  8  we go swimming

I have many good friends at school. I often  9them study English after school．So they think I'm a(n)  10  boy．They all like me very much．

    Do you like me? Do you want to make friends with me?

体育课上，老师一声“向前看齐”，队伍很快就排直了。实际上是每位同学前面的一位同学，如果挡住了前面所有的同学，就可使队伍站直了，这可以用____ 来解释 。

用第一行的物体可以画出第二行的哪个图形?连一连。

如图中的实验，是为了检测石墨电极芯的（　　）