问题 综合

43.读下图,回答问题。

 

(1)图中M地以南山脉的名称是__________。该山脉起伏和缓,试简述其成因。

(2)试比较图中河流R东、西岸支流的水文特征。(提示:从水量、含沙量、水位季节变化和落差等方面比较)

支流水量含沙量水位季节变化落差
东岸    
西岸    
(3)图中M地的农业地域类型属__________。试分析其形成的区位因素。

(4)图中的洋流是__________。该洋流对图中大陆东岸气候的影响,夏季较冬季更为明显,试根据提供的信息,分析其原因。

答案

(1)阿巴拉契亚山脉

该山脉位于(美洲)板块内部。长期经受外力(流水、冰川)侵蚀作用,所以,山脉起伏和缓。

(2)

支流水量含沙量水位季节变化落差
东岸
西岸
(3)乳畜业

气候冷湿,利于多汁牧草生长;城市、人口集中,市场需求量大;交通便利。

(4)黑西哥暖流

原因:夏季,大陆为低压,海洋为高压,大陆东岸盛行东南风,风从海洋吹向大陆,东南风经墨西哥暖流增湿后到达大陆西岸,所以,夏季墨西哥暖流对大陆东岸的气候影响大;冬季,大陆为高压,海洋为低压,大陆东岸盛行偏北风,风从大陆吹向海洋,所以,冬季墨西哥暖流对东岸的气候影响小。

单项选择题
单项选择题

Research on animal intelligence always makes us wonder just how smart humans are. (1) the fruit-fly experiments described by Carl Zimmer in the Science Times. Fruit flies who were taught to be smarter than the average fruit fly (2) to live shorter lives. This suggests that (3) bulbs burn longer, that there is a(n) (4) in not being too bright.

Intelligence, it (5) , is a high-priced option. It takes more upkeep, burns more fuel and is slow (6) the starting line because it depends on learning — a(n) (7) process — instead of instinct. Plenty of other species are able to learn, and one of the things they’ve apparently learned is when to (8) .

Is there an adaptive value to (9) intelligence That’s the question behind this new research. Instead of casting a wistful glance (10) at all the species we’ve left in the dust I.Q.-wise, it implicitly asks what the real (11) of our own intelligence might be. This is (12) the mind of every animal we’ve ever met.

Research on animal intelligence also makes us wonder what experiments animals would (13) on humans if they had the chance. Every cat with an owner, (14) , is running a small-scale study in operant conditioning. We believe that (15) animals ran the labs, they would test us to (16) the limits of our patience, our faithfulness, our memory for locations. They would try to decide what intelligence in humans is really (17) , not merely how much of it there is. (18) , they would hope to study a(n) (19) question: Are humans actually aware of the world they live in (20) the results are inconclusive.

8()

A.fight

B.doubt

C.stop

D.think