看拼音，写词语。

表示严肃认真的词语是____，我能用它写一句话：____

完形填空
   Dodtors tell us that we should have a 1 from work for a week or two weeks
every year. If it is possible, they say, we should2 our homes and go to another3 of the country. We should go away for4 Then, after the holidays, we will be5and get ready for6 again.
   But some people do not want to leave their homes and 7 in other places. They think their  8  are best of all. And some people can have a rest in 9way. They can go to visit their friends. They can have a 10holiday together.

电视机厂计划每月生产电视机500台，技术改造后10个月的产量就比全年计划产量多450台，实际平均每月生产多少台？　

生态农业是指运用生态学原理，在环境与经济协调发展的思想指导下，应用现代科学技术建立起来的多功能综合农业生产体系，如图是某农业生态系统的结构模式图，请据图回答：