题目内容

【题目】每年3月22日是 “世界水日”,今年主题是“水与粮食安全”,回答下面小题。

1我国水资源季节分配特点是( )

A. 夏秋少,冬春多 B. 夏秋少,冬春也少

C. 夏秋多,冬春少 D. 夏秋多,冬春也多

2我国水、土资源的分布情况是( )

A. 南方耕地多,水资源少 B. 北方耕地多,水资源多

C. 南方耕地少,水资源多 D. 北方耕地少,水资源少

【答案】

1C

2C

【解析】

1本题考查我国水资源分布特点。我国位于太平东部,受海陆热力差异影响,形成了典型的季风气候。夏季陆地形成低压,海洋形成高压,风从海洋吹向陆地,带来充足的降水。所以我国水资源的季节分配特点是夏秋多,冬春少。

2我国水、土资源的分布情况是南方耕地少,水资源多,北方耕地多,水资源少。

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【题目】Potato chips are very popular in the world. Do you know how they were invented (发明)? In 1853, a native (本土的) American named George Crum made the first potato chips. Crum was a chef (厨师) in an expensive restaurant in Saratoga Springs, New York. One day, a customer (顾客) did not like the French fries. He said they were cut too thick. That day Crum was in a bad mood, so he cut the potatoes really, really thin and he cooked them for a long time until they were very crispy (酥脆的). He wanted to make the customer dislike them. But the customer loved them very much and asked for more.

Other people wanted Crum’s potato chips. Now, there was a new food on the menu—Saratoga chips. Soon Crum opened his own restaurant and made his special chips. It took a long time to make potato chips. People peeled the potatoes by hand. Then in 1920, the automatic (自动的) potato peeler changed everything. Now it was faster and easier to make potato chips. Now potato chips were not a specialty. They were a popular snack food, but only in the north.

A salesman named Herman Lay wanted to sell potato chips in the south. He sold potato chips in bags. His business grew. Today, Americans eat a lot of potato chips every day.

阅读短文, 判断正(T)误(F)。

1At first the French fries were very thin.

2George Crum didn’t open his own restaurant.

3Before 1920, it was not easy to make potato chips.

4George Crum invented (发明) a kind of machine which could peel potatoes.

5It was George Crum who brought the potato chips to the south.

【题目】读资料回答问题。

节水农业要“量水而种”,面对今春引黄灌溉水量严重短缺的紧迫形势,宁夏河套灌区掀起一股打井抗旱保春耕的热潮。许多专家学者和水利工作者提出,开发地下水资源,固然是当前解决宁夏河套灌区农业灌溉用水紧张状况的重要手段,但也应坚持“量水而种”的原则,大面积压缩高耗水的农作物,在农业种植结构调整中“找水”。一提节水灌溉,许多人首先想到的是工程节水,如砌护渠道、实行低压管灌、上喷灌设施多,其实这只是节水农业的一个方面。实践表明,运用科学技术调整工业种植结构进行节水,同样大有可为。

在宁夏盐池县城西滩、红寺堡扶贫开发区,近年部分农民在政府的引导下,调整种植业结构,引种耐旱饲草苜蓿,每年只需灌溉两到三次水便可获得丰收。

调整单一的农业种植结构,改变的不单单是用水方式,对农民增收也会产生很大影响。“中国枸杞之乡”中宁县的农民,纷纷压缩粮食种植,扩大高效节水经济作物枸杞的种植面积,经营一亩地的枸杞,每年不仅比种粮少灌几次水,还能获得种粮5倍以上的经济收入。

(1)宁夏地理位置有什么特点?请分析宁夏发展农业生产的条件。

(2)黄河流经宁夏,对宁夏而言,发展节水农业是否必要?

(3)宁夏发展“节水农业”采取了哪些措施?收到了怎样的效果?

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