如表表示合成氨反应（N₂+3H₂⇌2NH₃）在不同条件下达到平衡时混合物中氨的含量起始时v（N₂）：v（H₂）═1：3．分析表中数据，回答下列问题：

（1）200℃、100MPa时，平衡混合物中氨的含量已达0.988，如果继续增大压强____ 

（填“能”或“不能”）使平衡混合物中氨的含量等于1，理由是：____ 

（2）欲使平衡混合物中氨的含量增大，则可采取的措施有：____ 

（3）欲使平衡混合物中氨的含量为0.710，则选择的反应条件应为：____ 

It's ____ leg.

阅读短文从方框中选择适当的单词填空（每词限用一次）

     Long long ago, there was a very old man called Yu Gong. There were two ____ Near his house. They were so high and big that it took a____ time to walk to the other side.The old man told his family that they should help him to move the mountains.
    Yu Gong and his family kept on digging day after day and year after year. ____ a god was so moved ____ Yu Gong that he sent two gods to take the mountains away.
    This story reminds us that you can never know what will happen ____ you don't try to do it．