（1）成语“坐井观天”青蛙看到天只有井口那么大，请你在甲图中作出青蛙看到天的范围。（A点是青蛙位置）

（2）根据平面镜成像特点，在图乙中画出物体AB在平面镜MN中所成的像A'B'。

（3）如图丙所示，平而镜前的一个发光点S所发出的光经过平而镜反射后的光线已经被画出，请你在丙图中用作图法找到发光点s的位置。

下列现象的微观解释中，不正确的是(      )

完形填空

    Mr. Wu is having a class in Class Five．He is asking students to think about(思考)  1  future 1ife．Here are some students' opinions(观点)．  

    Zhang Wei thinks people will live in the2like fish．because in the future people will 3organic silicon(有机硅)to breathe(呼吸)in the sea．And people will build 4and schools in the sea．Then they can see doctors and go to school．He

thinks life in the sea will be very 5  and comfortable．

    Luo Li thinks  6 in the future will be great．Every family will have a car．And these cars will 7  in the sky．People will drive cars to their offices．

  Wang Kai thinks machines like robots will do work for people,   8  people will have more 9  time to enjoy life．He thinks people will have short winter holidays but long  10holidays because the summer will be very long．