读音节，写词语。

完形填空

     There is a saying, “No sports, no life.” Sports are very important to us. Sports help us to stay  1  and get good grades. Everyone in our class   2  sports. Our favourite  3  is PE. We only have PE lessons  4  a week, but we play sports every day. The most popular sport in our class is basketball. The boys enjoy  5  it, and many of the  6  like it, too. Another popular sport is football and there   7  a lot of football fans (球迷) in ourclass. When the weather is 8 , we often play ping-pong outside.We hardly ever (几乎不) play volleyball. We think it's  9. We have a basketball team. Our team often has friendship (友谊) matches (比赛) with teams from other schools. When there is a match, many of us go to  10  it. It's very interesting.

下列图象能正确反映实验过程中相应量变化的是（　　）

下列各句中，没有语病的一句是 (　　)

如图是某区域的电场线分布图，a、b是电场中的两个点，Ea和Eb 分别表示a、b两点电场强度的大小，下面说法正确的是（     ）