【題目】讀“我國某地區(qū)地形及降水分布圖”,回答下列問題。
(1)讀圖1中年等降水量線的分布,總結本區(qū)域降水分布規(guī)律 , 據此推斷其主要影響因素是。
(2)圖1中①山脈是 , 是我國高原和平原的分界線。
(3)圖2中③河流是。
(4)圖示范圍中,我國疆域的四至點有幾個
A.沒有
B.1個
C.2個
D.3個
(5)當黑龍江還是冰天雪地時,海南島已經開始播種栽秧,其影響因素是:。
(6)圖2中序號④所示位置是以重工業(yè)為主的工業(yè)基地。
【答案】
(1)自東向西降水量逐漸減少;海陸因素
(2)大興安嶺;內蒙古;東北
(3)松花江
(4)C
(5)緯度因素
(6)遼中南
【解析】(1)本區(qū)域即東北地區(qū)降水分布規(guī)律自東向西降水量逐漸減少,據此推斷其主要影響因素是海陸因素。(2)圖中①山脈是大興安嶺,是我國內蒙古高原和東北平原的分界線。(3)圖2中③河流是松花江;(4)我國領土東至黑龍江省黑龍江與烏蘇里江主航道中心線的匯合處,西至新疆維吾爾自治區(qū)帕米爾高原;我國領土北至黑龍江省漠河縣北端的黑龍江主航道中心線,南至海南省南沙群島曾母暗沙。圖示范圍中,我國疆域的四至點有2個;(5)受緯度因素的影響,當黑龍江還是冰天雪地時,海南島已經開始播種栽秧;(6)讀圖可知,④是以重工業(yè)為主的遼中南工業(yè)基地。
所以答案是:(1)自東向西降水量逐漸減少;海陸因素;(2)大興安嶺;內蒙古;東北;(3)松花江;(4)C;(5)緯度因素;(6)遼中南。
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