问题 选择题

下列关于湿地的叙述中,正确的是(  )

A.湿地号称“地球之肾”是由于湿地具有多种生态服务功能,且服务价值较高

B.湿地号称“天然水库”是因为湿地就是水库,它包括天然湖泊、人工湖泊

C.湿地能为人类提供水源,但是不能发展航运

D.湿地是重要的环境资源,它能降解污染物,故人类可以向湿地中大量排放废物

答案

答案:A

湿地不仅为人类的生产、生活提供多种资源,而且具有巨大的生态效益,在抵御洪水、调节径流、蓄洪防旱、控制污染、调节气候、控制土壤侵蚀、促淤造陆、美化环境等方面有其他系统不可替代的作用,被誉为“地球之肾”。但是任何对环境具有保护功能的地理事物,对污染物的降解都是有一定限度的。所有季节性或常年积水地段,包括沼泽、泥炭地、湿草甸、湖泊、河流及洪泛平原、河口三角洲、滩涂、珊瑚礁、红树林、水库、池塘、水稻田以及低潮时水深浅于6米的海岸带等,均属湿地范畴。有些湿地,如河流可以通航。

阅读理解

阅读理解。

     It's been claimed that playing a musical instrument makes you smarter. New research suggests that

regularly playing a musical instrument changes the shape and power of the brain, and may be used in therapy

(疗法) to improve cognitive (认知) skills. 

     Experts say there is growing evidence that musicians have brains that are structurally and functionally

different from those of non-musicians, especially in the areas of the brain used in processing (处理信息).

     The parts of the brain that control motor skills, the storage of audio information, hearing and memory

become larger and more active when a person learns how to play an instrument and can apparently improve

the alertness (警觉) and planning.

     Lutz Jancke, a psychologist at the University of Zurich, said, "Leaning to play a musical instrument has

great benefits and can increase IQ by seven points in both children and adults. We found that even people

over the age of 65, after four or five months of playing an instrument for an hour a week, had strong changes

in the brain." The parts of the brain that control hearing and memory, and the part that controls the hands,

among others, all become more active.

     "Of course music isn't the only answer, but I do believe that it should be used in addition to other things."

     Mr. Jancke also said that learning a musical instrument could also make it easier to learn foreign languages

and make one more sensitive to understanding the emotions of others. "So not only does this make it easier to

pick up other languages and have a better memory of one's own, we have also seen musicians are able to pick

out exactly what others are feeling just by the tones of their voices-sympathy, disappointment, that kind of

things."

     He added, "Several studies indeed show that playing music increases memory and language skills, but

more research is needed."

1. What is the passage mainly about? [ ]

A. How to use musical instruments.

B. How music affects the brain.

C. How playing music makes people smarter.

D. The development of research into music.

2. Compared with non-musicians, ______. [ ]

A. musicians are better at foreign languages

B. musicians are more active in sports

C. musicians have stronger emotions

D. musicians' brains work differently in processing

3. Which of the following is NOT a benefit of playing an instrument? [ ]

A. It makes it easier for one to pick up foreign languages.

B. It allows one to show his feelings more exactly to others.

C. It gives one a better memory in one's own language.

D. it makes one understand others' feelings better.

4. From Luz Jancke we lean that ______. [ ]

A. playing an instrument benefits children more than adults

B. playing an instrument has no benefits for people over 65

C. some studies show playing music can increase memory

D. he will do more research into brain development and music

单项选择题 A1型题