【題目】材料分析題。

材料一

2016年10月2日，位于陜西和山西交界處的黃河壺口瀑布迎來(lái)數(shù)萬(wàn)人圍觀。從空中俯瞰黃河壺口瀑布飛流直下，氣勢(shì)磅礴。

材料二

壺口瀑布是黃河中游流經(jīng)晉陜大峽谷時(shí)形成的一個(gè)天然瀑布。深約50米，最大瀑面3萬(wàn)平方米，是中國(guó)僅次于貴州省黃果樹(shù)瀑布的第二大瀑布。在水量大的季節(jié)，壺口瀑布?xì)鈩?shì)恢宏。

材料三

延安基本氣候情況（1971——2000年資料統(tǒng)計(jì)）

月份

1月

2月

3月

4月

5月

6月

7月

8月

9月

11月

11月

12月

平均溫度（℃）

-5.5

-1.8

4.5

12.2

17.6

21.4

23.1

21.6

16.8

10.0

2.8

-3.5

平均降水（mm）

8.0

5.0

17.6

26.8

41.7

67.7

112.1

117.5

68.0

35

18.6

8.2

【1】結(jié)合材料,分析壺口瀑布最佳的觀賞時(shí)間是不是10月？為什么？并說(shuō)明理由。（不少于100字）

【答案】最佳觀賞時(shí)間不是10月。因?yàn)閴乜谄俨細(xì)鈩?shì)是否恢宏主要是看其水量的大小。從延安基本氣候情況來(lái)分析10月份并非降水高峰期。延安壺口瀑布最佳的觀賞時(shí)間是7、8月份。咱們國(guó)家東部季風(fēng)區(qū)的雨帶隨時(shí)間由南向北推移，正常年份7、8月份到達(dá)華北地區(qū)。

【解析】

試題分析：最佳觀賞時(shí)間不是10月。因?yàn)閴乜谄俨細(xì)鈩?shì)是否恢宏主要是看其水量的大小。從延安基本氣候情況來(lái)分析10月份并非降水高峰期。延安壺口瀑布最佳的觀賞時(shí)間是7、8月份。咱們國(guó)家東部季風(fēng)區(qū)的雨帶隨時(shí)間由南向北推移，正常年份7、8月份到達(dá)華北地區(qū)。

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