【題目】下圖為我國(guó)部分省區(qū)2005～2010年人口凈遷移率(遷入率與遷出率之差，正數(shù)表示人口凈遷入。反之為凈遷出)與人口自然增長(zhǎng)率分布圖。讀圖，完成下列各題。

【1】下列有關(guān)我國(guó)部分省區(qū)2005～2010年人口變化狀況的敘述，正確的是

①江西省凈遷入人口數(shù)增加 ②天津人口增長(zhǎng)率大于四川

③廣東自然增長(zhǎng)人口數(shù)大于凈遷入人口數(shù) ④貴州人口凈減少

A．①② B．③④ C．②③ D．①④

【2】圖中人口數(shù)量的變化

A．使北京、上海、天津城市用地面積增大

B．引起江西、貴州的人口合理容量增大

C．增強(qiáng)了廣東、浙江第一產(chǎn)業(yè)的活力

D．使北京、上海人口老齡化問題更加嚴(yán)重

【答案】

【1】C

【2】A

【解析】

試題分析：

【1】讀圖，根據(jù)材料信息，江西省凈遷遷率小于0，表示遷入人口數(shù)少，是凈遷出，①錯(cuò)。天津凈遷入率和自然增長(zhǎng)率都大于0，人口增加率數(shù)值大，而四川人口凈遷移率小于0，自然增長(zhǎng)率大于0，人口增長(zhǎng)率較小。所以天津的人口增長(zhǎng)率大于四川，②對(duì)。結(jié)合圖中數(shù)值，廣東自然增長(zhǎng)率7，人口凈遷入率約是1，自然增長(zhǎng)人口數(shù)大于凈遷入人口數(shù)，③對(duì)。貴州人口自然增長(zhǎng)率超過7，遠(yuǎn)大過人口凈遷入率，貴州人口增加的多，④錯(cuò)。C對(duì)。

【2】圖中北京、上海、天津人口增加率都大于0，人口增長(zhǎng)快，城市規(guī)模擴(kuò)大，用地面積增大，A對(duì)。影響人口容量的主要因素是資源、科技水平、對(duì)外開放度和消費(fèi)水平，人口數(shù)量不是影響人口的合量容量的因素，B錯(cuò)。第一產(chǎn)業(yè)是農(nóng)業(yè)，廣東、浙江外來人口多，主要是進(jìn)入城市務(wù)工的，主要從事第二、三產(chǎn)業(yè)，C錯(cuò)。進(jìn)入北京、上海的外來人口，多為青、壯年，不會(huì)加劇老齡化，D錯(cuò)。

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