A group of frogs were traveling through the forest, but unluckily two of ____fell into a hole. The other frogs tried to help them. When they saw how____ the hole was, they cried to the two frogs that they could not be saved. The two frogs didn't care and tried their____to jump up out of the hole. The other frogs kept saying that they were sure to die. Finally, one of the two frogs heard____the other frogs were saying and gave up. Then he fell ____and died.

    However, the other frog continued to jump as hard as he could____last, he made it out. When he got out, the other frogs asked, "Did you hear us?" The frog, who had a____hearing, explained, "I thought you were encouraging me ____ the time."

    The story teaches us a ____ There is power of life and death in the tongue(言语）.An encouraging word to those who are down can help them out ____a discouraging word can kill them.

下列物质的工业制法中没有发生化学变化的是(     )

下列有关二氧化碳的检验、制备和用途能达到目的是（　　）

鲁迅先生的这段文字一点不带笑声，竟____把一个喧嚣____而又充满杀lù____的时代，描写得活灵活现。文字的功力，还有老手的驾yù____本领吸引着我，长大后我一定要买一部《鲁迅全集》随身xié____带。