灌溉水源（water sources for irrigation）

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1.The overwhelming flood has polluted the water sources of the city and it is now ____ drinkable water.A、in needB、in shortC、short ofD、needed

2.以灌溉功能为主的水源工程,在农田灌溉期,应当优先保证()。A、生态用水B、养殖用水C、灌溉用水

3.灌溉水源取水方式

4.EThe need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage（短缺）seems strange to someone fortunate enough to live in a high rainfull country, many of the world’s agricultural industries experience constant water shortages.Although dams can be built to store water for agricultural use in dry areas and dry seaons, the costs of water redistribution(重新分配)are very high. Notonly is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys(山谷)are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water many flow easily through pipes to fields,but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.This is particularly troubling ro countries with agricultural industries in areas dependent on irrigation（灌溉）. In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.72. From the first two paragraphs we learnt that _______.A.much of the world’s water is available for useB.people in high rainfll countries feel luckyC.the costs of water redistribution should be consideredD.water can be easily carried through pipes across the world

更多“灌溉水源（water sources for irrigation）”相关问题

第1题：

灌溉水源不包括（）
A.地表灌溉水源
B.地下灌溉水源
C.未经净化处理的工业污水
D.灌溉回归水

正确答案：C
第2题：

For decades，farmers and environmentalists in California have been entangled in a______over laws that limit the amount of water diverted from rivers and streams for irrigation。

A.dispute
B.register
C.conflict
D.negotiation

答案：A
解析：
本题考查词义辨析。题目意为“几十年来，加利福尼亚州的农民和环境保护主义者一直纠结于限制从河流和溪流中分流用于灌溉的水量的法律纠纷。”A选项“辩论，纠纷”，B选项“登记，注册”，C选项“冲突，矛盾”，D选项“谈判，转让”。根据句意，应该是双方就该法律有纠纷，a dispute over laws，法律纠纷，选项A正确。
　　
第3题：

灌溉水源不包括（）
- A、地表灌溉水源
- B、地下灌溉水源
- C、未经净化处理的工业污水
- D、灌溉回归水
正确答案:C
第4题：

节水灌溉（water-saving irrigation）

正确答案: 根据作物需水规律和当地供水条件，高效利用降水和灌溉水，以取得农业最佳经济效益、社会效益和生态环境效益的综合措施。
第5题：

银川平原的灌溉水源来自（）
- A、冰雪融水
- B、湖泊水灌溉
- C、引黄灌溉
- D、地下水灌溉
正确答案:C
第6题：

从事工程建设，占用（）、灌排工程设施，或者对原有灌溉用水、供水水源有不利影响的，建设单位应当采取相应的补救措施；造成损失的，依法给予补偿。
- A、农业灌溉水源
- B、水源
- C、灌溉水源
正确答案:A
第7题：

简述灌溉水源。

正确答案:灌溉水源是指天然资源中可用于灌溉的水体。
灌溉水源主要有地表水、地下水、土壤水、回归水以及微咸水和经过处理的污废水等。
第8题：

单选题
银川平原的灌溉水源来自（）
A
冰雪融水
B
湖泊水灌溉
C
引黄灌溉
D
地下水灌溉

正确答案： D
解析：暂无解析
第9题：

单选题
灌溉水源不包括（）
A
地表灌溉水源
B
地下灌溉水源
C
未经净化处理的工业污水
D
灌溉回归水

正确答案： C
解析：暂无解析
第10题：

问答题
灌溉水源主要有哪些类型？灌溉对水源有何要求？

正确答案：灌溉水源一般分为地面水和地下水两种大的类型。又可细分为河川径流、当地地面径流、地下径流、及城市污水等。灌溉对水源的要求包括水位、水量及水质要求。
解析：暂无解析
第11题：

单选题
Large quantities of water ______ for irrigation.
A
is needed
B
has needed
C
are needed
D
need

正确答案： B
解析：
quantities是复数形式，不管后面接的名词是单数还是复数，谓语动词都用复数。本句里“大量的水被需要”，要用被动语态，故为C。
第12题：

单选题
The author says that in some hot and dry areas it is advisable to _____.
A
build big lakes to store water
B
construct big pumping stations
C
channel water from nearby rivers to cropland
D
build small and cheap irrigation systems

正确答案： C
解析：
细节题。第四段第二句提到，在热带干旱地区可“通过一些小规模的工程，例如在凹地收集雨水，旱时用泵抽雨水来灌溉附近的农田。”这是最便宜的供水方式。
第13题：

灌溉对水源的水质、（）有要求。

正确答案：水位和水量
第14题：

灌溉水源主要有哪些类型？灌溉对水源有何要求？

正确答案: 灌溉水源一般分为地面水和地下水两种大的类型。又可细分为河川径流、当地地面径流、地下径流、及城市污水等。灌溉对水源的要求包括水位、水量及水质要求。
第15题：

水利计算（analysis of irrigation water resources）

正确答案: 在灌溉工程建设和管理中，为经济、有效地利用灌溉水资源所进行的分析计算工作。
第16题：

灌溉（irrigation）

正确答案: 按照作物生长需要，利用水利工程设施有计划地将水送到田间，以补充农田水分的人工措施。
第17题：

灌溉水源

正确答案:是指可以用于灌溉的水资源。
第18题：

灌溉用水量是指灌溉土地需从水源取用的水量，亦称毛灌溉用水量。

正确答案:正确
第19题：

灌溉水源的主要类型

正确答案: 灌溉水源指可以用于灌溉的天然水体，一般分地面水和地下水两种形式。如进一步细分的话，则可分为河川湖泊径流、当地地面径流、地下径流和城市污水等四种。
第20题：

单选题
Since 1960, the fast-growing town of Hotstone, Arizona, has drawn water from the Gray River, which feeds Lake Mudfish. If the town’s water use continues to grow at its present rate, in about 20 years the water level of Lake Mudfish will inevitably decrease to the point that it can no longer support its biologically fragile population of fish.　 The prediction above is based on which of the following assumptions?
A
As the town’s water requirements grow, it will not be able to meet those requirements by drawing on water sources other than the Gray River.
B
Since 1960, the lake’s population of fish has become more biologically fragile.
C
The amount of water that the lake loses to evaporation each year will increase over the next two decades.
D
There are multiple sources of water besides the Gray River that feed into Lake Mudfish.
E
The town of Hotstone will be able to reverse its trend of increasing water use if it implements an aggressive water conservation program.

正确答案： B
解析：
由文段的内容可知，Mudfish湖之所以会干涸是因为Gray River的水都被用来提供给周边的Hotstone和Arizona，所以可知本题应选A项。
第21题：

单选题
According to the passage, which of the following should be considered sources of renewable energy?
A
Petroleum, sunlight and wind power.
B
Gas, water and fossil fuels.
C
Coal, natural gas and hydropower.
D
Sunlight, water and wind power.

正确答案： A
解析：
题目问的是：根据篇章，下列哪一项可以看作是可再生能源的来源？根据常识可知，是日光、水和风力。故选D。
第22题：

名词解释题
灌溉水源

正确答案：是指可以用于灌溉的水资源。
解析：暂无解析
第23题：

单选题
从事工程建设，占用（）、灌排工程设施，或者对原有灌溉用水、供水水源有不利影响的，建设单位应当采取相应的补救措施；造成损失的，依法给予补偿。
A
农业灌溉水源
B
水源
C
灌溉水源

正确答案： C
解析：暂无解析

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灌溉水源（water sources for irrigation）

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