将一带电的有机玻璃棒靠近带正电的泡沫塑料小球时,相互作用情况如图所示,由此可知:有机玻璃棒带_______电,这是因为_______电荷相互_______。
正;同种;排斥
按生物的生活环境可以把生物分为( )
A.植物、动物和其他生物
B.陆生生物、水生生物和空中飞行的生物
C.作物、家禽和家畜等
D.脊椎动物、无脊椎动物
句型转换(5%,每线0.5)
小题1:“When will he have a concert?” the boy asked.(改为间接引语)
小题1:
The boy asked he have a concert
小题2:These tigers are facing great danger.(改为感叹句)
小题2:
_________ ________ danger these tigers are facing!
小题3:Was he killed? Did he kill himself? I wonder. (合并为一句)
小题3:
I wonder _________ he was killed _________ he killed himself.
小题4:We shall make an extra model.(改为同义句)
小题4:
We shall make __________ ___________ model.
小题5:To prevent us from floating in the air, we must wear special boots.(提问)
小题5:
_________ _________ we wear special boots?