问题 阅读理解与欣赏
阅读下面说明文,完成后面题目。
植物聊天
  ①近日,科学家们研究发现很多植物可以组建自己的联络系统,以便于互相聊天或者发出警告。我们眼中的植物不再是那种被动的生命,只能站在一个地方等待被砍掉或者吃掉。植物自己构建的内部交流网络可以高效率地工作,帮助各种植物传递有用的信息。
  ②很多种草本植物,例如草莓、三叶苜蓿、芦苇或是羊角芹都会自发地组建这种聊天网络。在这个聊天网络中,每一株植物都会释放和接受特殊信使物质所携带的信息,使其在网络中与其他植株共享信息。这种工作原理和现在的计算机网络的拓扑结构十分相似。让人们好奇的是,植物们在这个网络里面都谈些什么呢?
  ③一个科研小组发现一些聪明的植物们会在危险迫近的时候通过这个网络发布警告信息,如果有一株植物被毛虫等动物咬食了,那么在同一个体系中的其他植物都会接到内部的警告信号。
  ④在接到警告信号之后,这些还没有被咬的植物就会进行化学物质防御和机械防御,使得自己比较不容易受到毛虫等的侵害。多亏有了“植物聊天系统”,植物们才可以在危险全面到来之前准备一些防御措施。目前的试验显示,这种植物自发的交流防御机制可以有效地减小植物受侵害的程度,提高植物的生存能力。
  ⑤当然,任何事物都有可能是一把双刃剑,对互联网来说是这样,对植物聊天网络来说也是如此。就好比网络上流行的计算机病毒,在植物聊天网络中,有些特殊的病毒就利用植物释放信息物质的机制进行传播,使得只要有一株处于聊天网络中的植物被感染,整个网络内的植物往往都逃脱不了被感染的危险。
  ⑥这项研究令人称奇的地方在于它改变了人们对于植物的传统观念。我们现在才发现,那些我们身边最常见的植物其实早就是网上聊天的高手了。
1.本文是一篇_________说明文,向我们介绍了__________________的道理。第②段运用的说明方法主要有:__________________。
2.作者说:“当然,任何事物都有可能是一把双刃剑,对互联网来说是这样,对植物聊天网络来说也是如此。”请结合文章内容,说说植物聊天网络是“双刃剑”的具体表现。
___________________________________________________
答案

1.事理 植物通过自己的网络系统可以进行联系 举例子、打比方

2.植物聊天可以让植物在危险到来前作一引起防御措施,减少自身受伤害程度,提高生存能力;但同时植物聊天系统会让有些特殊病毒进行传播,使整个网络中的植物被感染。(意对即可)

阅读理解

第三部分阅读理解(共20小题,每小题2分,满分40分)

When my daughter, Sophie, was admitted to a college we were very happy, but a little worried about becoming empty nesters. I knew I had to do something to help myself adapt, starting with the summer before she left.

Sophie had a pack of colorful T-shirts. I knew she wouldn’t wear them any more, so I decided to make a quilt out of them for her bed at college. It focused my energy, and also let me relive some memories. I tried to work on the quilt when Sophie wasn’t at home----which turned out to be often. She was very busy with her friends. Even when she was around, her door was shut more than usual. I felt a bit hurt. After all, we didn’t have much time together before she went to college, I was already missing her, and she hadn’t ever left yet.

When we arrived at the college, a wave of emotion flooded me. I tried to hold it back, but Sophie saw it in my face. She took a big red book from her bag. “ I made this for you, Mom,” she said. Then I knew why she had been staying behind a closed door that summer. It was an album of photographs documenting the life of our family over the last 17 years.

I broke into tears. Some of it was sadness at having to let her go, but some of it was joy. I knew that our connection was more powerful than ever, and that we’d always be connected by the strongest of threads, the love that went into every stitch of her quilt and every photo of my album.

In Sophie’s dormitory I unfolded the quilt on her bed. For a moment she was speechless. Then she threw her arms around me . “Mom, I love you,” she said. One of her new friends was calling her outside. Sophie turned, and I let her go.

56.What do we learn about Sophie from the passage?

A. She did not understand how her mother felt about her leaving.

B. She had few friends, and kept to herself at home that summer.

C. She made a photo album to show her love.

D. She liked her colorful T-shirts very much.

57.Why did the author feel hurt, according to the second paragraph?

A. Because Sophie was not interested in what she was doing.

B.Because Sophie had little time for her.

C.Because Sophie was going to leave home for a long time.

D.Because Sophie did not help her to make the quilt.

58.How did the author feel when they arrived at the college?

A. She felt worried.

B.She felt nervous.

C.She was sorry to be leaving her daughter.

D.She missed her daughter very much.

59.Why did the author finally let her daughter go?

A. She realized that her daughter had to go to college by herself.

B.She realized that the love between them would never be cut off.

C.Sophie’s present had made her forget her sorrow.

D.Sophie’s new friends were calling her outside the dormitory.

单项选择题 A1型题