如图为模拟膈肌运动的示意图，下列叙述错误的是（　　）

下列实例中，为了加快蒸发的是（　　）

一般情况下，在人体内主要作为备用能源物质贮存的是 (    ) 

如图是手电筒的结构示意图，请在虚线框内画出它的电路图．

阅读下面的短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式。
    Peter is ____ really interesting boy. This is his tree house. It's very cool. Look! What's that next to the desk? It's Peter's dog. ____(it)name is Angelina. It's a funny dog. It can____(smile). There's a radio and some picture____(book)on the desk.  Look at the wall.  You can see a map of America and a clock on it. Peter usually____(go)to his tree house at weekends with his friends. They play games and have a good time there.