题目内容

【题目】2014年6月初至7月下旬,在国家林业局治沙办的统一安排下,规划院会同西北院抽调专业技术骨干组成了指导组,对全国11个荒漠化和沙化重点监测省区进行了技术指导工作。据此完成下面小题。

【1】我国西北地区成为全球同纬度地区降水最少,干旱程度最高的地带,原因是

①远离海洋,深居内陆 ②高原、山地阻隔,水汽难以到达 ③地处高压控制,下沉气流为主 ④植被破坏严重,蒸发作用强烈

A. ①② B. ②③ C. ③④ D. ①④

【2】下列荒漠化问题与所对应的地区,正确的是

A. 江南丘陵——次生盐渍化

B. 西南喀斯特地区——红漠化

C. 西北干旱地区——沙漠化

D. 黄淮海地区——石漠化

【答案】

【1】A

【2】C

【解析】试题分析:

【1】西北地区降水少,主要是由于其海陆位置和地形造成的。与植被破坏没有必然联系,且西北地区位于西风带,不位于副高控制区,故选A。

【2】我国荒漠化江南丘陵为红色荒漠,A错。西南喀斯特地区主要为石漠化,B错。西北干旱地区主要为沙漠化,C对。黄淮海地区主要为次生盐碱化,D错。故选C。

练习册系列答案
相关题目

【题目】概要写作

阅读下面短文,根据其内容写一篇60词左右的内容概要。

For those who study the development of intelligence in the animal world,selfawareness is an important measurement.An animal that is aware of itself has a high level of intelligence.

Awareness can be tested by studying whether the animal recognizes itself in the mirror,that is,its own reflected image.Many animals fail this exercise bitterly,paying little attention to the reflected image.Only humans,and some intelligent animals like apes and dolphins,have been shown to recognize that the image in the mirror is of themselves.

Now another animal has joined the club.In the Proceedings of the National Academy of Sciences,researchers report that an Asian elephant has passed the mirror selfreflection test.

“We thought that elephants were the next important animal,”said Diana Reiss of the Wildlife Conservation Society,an author of the study with Joshua M.Plotnik and Fans B.M.de Waal of Emory University.“With their large brains,” Reiss said,“elephants seemed like cousins to apes and dolphins.”

The researchers tested Happy,Maxine and Patty,three elephants at the Bronx Zoo.They put an 8footsquare mirror on a wall of the animals’ play area (out of the sight of zoo visitors) and recorded what happened with cameras,including one built in the mirror.

The elephants used their long noses to find what was behind it,and to examine parts of their bodies.

Of the three,Happy then passed the test,in which a clear mark was painted on one side of her face.She could tell the mark was there by looking in the mirror,and she used the mirror to touch the mark with her long nose.

Diana Reiss said,“We knew elephants were intelligent,but now we can talk about their intelligence in a better way.”

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

________________________________________________________________________

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网