下图表示某草原生态系统各成分之间的关系。请据图回答下列问题:

（1）图中的植物是生态系统中的_____________者，动物是生态系统中的_____________者。

(2)通过食物链和食物网，生态系统进行着_________________

和能量流动，且能量传递具有单向性和_________________的特点。

(3)在农田生态系统中，人们研究其能量流动的目的是为了使能量尽可能多的流向对人类有益的一面。我市牡丹区杜庄村的一些瓜农，利用农作物秸秆反应堆技术在大棚内种植甜瓜，使甜瓜提早上市，取得了较好的经济效益这种技术不但提高了大棚内的温度，而且提高了土壤的肥力，它主要是利用了_______________等分解者，将秸秆中的_________________分解成供甜瓜利用的简单物质，并释放出_______________________。

阅读下面短文，根据短文内容判断句子的正误。正确的涂 “A”，错误的涂 “B”。（共5小题，每小题2分；计10分）

When I was a boy, I didn't have any hair on my head. So I was very shy. I liked to watch my friends play in the park. Sometimes I would join them, but most of the time I just watched them play.

Every day, we would see an old man walking in the park. He had big ears and no hair. We thought he was dumb (哑的). Every time when my friends saw him, they would say loudly, "Hey, Mr. Dumb, what's the time?” But they got no answer.

One early evening, I was standing outside my house, and I saw the old man coming. I was not with any of my friends and there were no other kids around to say the usual words of "greeting( 问候)”.

But how could I let the old man walk by without saying anything? So for the first time, I asked, “Hey, Mr. Dumb, what’s the time?"

The old man looked at me. Then he looked at his watch and answered, "It's six thirty. " I ran into my house and never said that "greeting" to the old man after that day.

小题1:The boy often played with his friends together.

小题2:The boy’s friends were very polite to the old man.

小题3:Neither the boy nor the old man had any hair on the head.

小题4:Actually, the old man could hear and speak.

小题5:At last ,the boy felt ashamed of what he did with the old man.