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【题目】读图1和图2,完成下列各题。

(1)图七中的山脉①是我国重要的地理分界线,该山脉以南地区主要油料作物是。从图八可知我们贵港市所在省区盛产(填经济作物),作物熟制为
(2)A区域与C区域的划分依据是因素。
(3)C地区跨经度广,东西距离大,各地距海洋远近不同,自然景观东西差异明显,自东向西依次为森林草原、、荒漠草原、荒漠等。
(4)D地区主要的自然环境特征为业是本区主要的生产方式;本区种植业主要分布在海拔较低,水热条件较好的地带。

【答案】
(1)油菜;甘蔗;一年两熟至三熟
(2)400mm年等降水量线
(3)草原
(4)高寒;畜牧;河谷
【解析】读图可知,(1)左图中的山脉①是秦岭,它和淮河构成了我国南方地区和北方地区的分界线;该山脉以南为南方地区,主要油料作物是油菜。从右图可知,广西壮族自治区的贵港市盛产甘蔗,这里的作物熟制为一年两熟至三熟。(2)A区域为北方地区,C区域为西北地区,两区域的划分依据是400mm年等降水量线,此线以东为季风区,以西为非季风区。(3)C地区跨经度广,东西距离大,各地距海洋远近不同,降水由东向西逐渐减少;自然景观东西差异明显,自东向西依次为森林草原、草原、荒漠草原、荒漠等。(4)D地区为青藏地区,这里海拔高,气温低,主要的自然环境特征为高寒,畜牧业是本区主要的生产方式;本区种植业主要分布在海拔较低,水热条件较好的河谷地带。
所以答案是:(1)油菜;甘蔗;一年两至三熟;(2)400mm年等降水量线;(3)草原;(4)高寒;畜牧;河谷。

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