（2025·贵州黔南·三模）Oasis agriculture is a unique agricultural practice that thrives in the middle of arid and semi-arid regions, where water is a limited resource. These oases, usually forms where underground water reaches the ground, create fertile soil in deserts, allowing crops and plants to grow in such tough conditions. AlUla, an area in northwest Saudi Arabia, is a perfect example of this type of farming, with a history of thousands of years.
The formation of AIUla’s oasis results from a dry riverbed that channels water from distant rain into the valley, enriching the soil with minerals from the neighboring basalt (玄武岩) plains. This natural water source not only helped plants to grow and attracted animals but also became the home of early human societies. Around 5, 000 years ago, people started to grow cereal grains in this area. Scientists have found evidence of ancient farming and diets in old grains, seeds, and wood, showing how important the oasis was for these early communities.
Today, oases like AlUla are not only centers for farming but also places where trade, knowledge, and farming methods have been shared for centuries. However, these oases now face serious threats. For example, climate problems are changing rain patterns and making areas drier. Harmful farming practices and city expansion are using up water supplies, causing water levels to drop and soil to lose quality. Competition for limited resources is making social and economic gaps wider, putting oasis agriculture at risk. Without quick action, its future is uncertain.
To protect oasis agriculture, sustainable management is needed. This includes using water-saving irrigation systems, avoiding water waste, and encouraging natural farming with varied crops. It is also vital to include local communities in protecting oases, as they have valuable knowledge passed down through generations. By doing these, we can ensure oasis agriculture survives and helps protect both Earth’s biodiversity and cultural history.
23．In which regions is oasis agriculture mainly applied?
A．Regions with limited water. B．Regions with frequent floods.
C．Extremely cold regions. D．Highly populated regions.
24．What is the primary cause of AlUla’s oasis formation?
A．The discovery of ancient farming and diets.
B．Minerals from the nearby plains.
C．A dry riverbed transporting rainwater to the valley.
D．The settlement of ancient people.
25．Why are the examples mentioned in Paragraph 3?
A．To analyze the limitation of oasis agriculture.
B．To prove the importance of oases.
C．To stress the effects on developing oasis agriculture.
D．To illustrate the specific threats to oases.
26．Which suggestion does the author agree with?
A．Growing single crops for higher efficiency. B．Adopting eco-friendly farming policies.
C．Relying only on government-led conservation. D．Banning using all irrigation systems.
【答案】23．A 24．C 25．D 26．B
【知识点】科普知识 、环境保护、说明文
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