问题 综合

内蒙古锡林郭勒草原的东部,又被称作乌珠穆沁草原。乌珠穆沁草原目前是内蒙古保存最为完好的天然草原,牧草非常繁茂,可以看到“天苍苍,野茫茫”,风吹草低见牛羊”的景观,乌珠穆沁草原被人们喻为“内蒙古最后的天然草原”。结合该图回答问题。(9分)

(1)锡林郭勒草原面临的主要环境问题为什么? 分析该问题产生的原因。

(2)简要分析乌珠穆沁草原牧草繁茂的原因?

(3)在a、b两河上建造水库是否合理?简述其理由?

(4)简要分析在a、b河上水库建成后对当地生态的影响

答案

(1) 草原退化、沙化(荒漠化)(1分) 过度开垦,过度放牧,过度樵采,不合理使用水资源等。(答出3点即可得满分)(3分)

(2) 多条河流注入盆地,水源较为充足。(1分)

(3) 不合理(1分)。该地河流大多为内流河,降水量小,蒸发旺盛,河流的径流量小,内蒙古高原地势平坦,河流落差小。(2分)

(4) a、b两地水库建成后,下游盆地,水源减少,草场退化、沙化严重(2分)

本题考查我国的区域地理综合分析。(1)锡林郭勒位于半干旱地区,由于草原地区的过度开垦,导致了草原的破坏而造成土地荒漠化。产生的原因主要从不合理的人类活动对植被的破坏等方面分析。(2)草原牧草茂盛主要从水分条件分析。(3)图示区域位于内陆地区,河流流量较小,且位于内蒙古高原,地势落差小,故水能资源并不丰富。(4)由于该地区位于内流区,故河流上游水库大量蓄水,将导致中下游地区水量减少,则将导致河流中下游地区的生态环境恶化,导致荒漠化扩展。

阅读理解

For many of us, printed books are satisfying in ways beyond the words they contain. Billions of printed books have been published, read and saved in the 600 years since movable type was invented, so why mess with a good things?

Sony Electronics is doing just that, betting that readers will be won over by the convenience of readability of its new electronic book devices. Sony's reader, the PRS-505, can hold 160 books in its fixed memory, enough to line the shelves on a good-sized wall in the average American home. The $299 device is about the size of a paperback book, but a half-inch thick and weighs less than a pound.

The Sony book reader is revolutionary not only in its storage capacity. The font(字体) is highly readable and adjustable by size. Unlike laptop computers, you can put the Sony in your purse, read it in direct sunlight and even bookmark the pages. And you can connect it to your PC to download books.

Surprisingly, though the reader has liberated the book from paper, electronic books aren't always a bargain. For example, David Baldacci's "Stone Cold" download retails(零售) for $15.19 at the Sony site, while Amazon(卓越网) will deliver a hard copy to your mailbox for $16.19.

The Sony reader also lets you store and play or display music. So what's not to like about the Sony? Well, for many bibliophiles, a lot. Book lovers like to have, hold and keep their volumes, which don't need charging. You can write notes in the margins, and enjoy the ambience they provide on your book shelves.The need for electronic reading devices is likely to grow as more people worried about the billions of tons of paper used for printed material. Many believe the time will come when devices like the Sony reader are as common as printed newspapers and magazines today.

小题1:According to the passage, the Sony book reader _________.

A.is as light as a laptop computer

B.can hold more than 200 books

C.is convenient to carry around

D.cannot be connected to a PC小题2:What is the author’s point when he mentions “Stone Cold”?

A.Amazon’s printed books are very cheap

B.“Stone Cold” can be got from the Sony site and Amazon

C.The Sony book reader is not very cheap to use

D.The Sony book reader can benefit its buyers a lot小题3:The underlined word “bibliophiles” in Paragraph 5 refers to “__________”.

A.music lovers

B.book lovers

C.electronic reading devices

D.Sony readers小题4:According to the author, what’s the future for the electronic reading devices?

A.They’ll replace printed newspapers and magazines

B.They’ll still be more expensive than printed newspapers

C.They’ll become a must in people’s daily life

D.They’ll become more popular as time goes on

填空题