真题研读

串词文章 · 第 4 篇 · 自然、环境与健康

The Valley Farm

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Mei, a physician, and her brother Tom, a physicist, farm forty acres in a valley on a peninsula, its boundary a bay shore. They grow grain crops, rear dairy cows and keep a tame donkey that bites nails. In ordinary years they reap a considerable yield; this year drought and flood ruined the crops. Elsewhere on the continent it was worse: hunger spread and cattle starved. Agriculture is literally tied to climate.

Tom's answer lies in the dirt. Organic soil, rich in decaying leaves, absorbs abundant water in floods and holds it in droughts. It serves as a carbon sink, trapping carbon from the atmosphere. At the expense of a season's profit, he set aside ten acres for timber and planted beans alongside grain crops. Impressed, Mei wiped the dirt off her boots. In effect, this practical plan tackles climate change.

Motor pollution reached the greenhouse, so Tom equipped the roof with solar panels and built a turbine whose generator ran on bay winds. Copper wires and pipes carried electricity and water. Unfortunately, solar output depends on the frequency of cloudy days, and humidity damaged a panel. Even so, the efficient system consumed half the fuel, an apparent reduction within monthly cycles.

Mei's monthly clinic treated chronic diseases whose symptoms people neglect or underestimate. No cure exists; nutrition is vital. Fewer crisps and calories, more grain. She taught a slim teenager to boil or roast vegetables and check the proportion of each ingredient. A feverish man got a fluid diet. Children came with insect bites and painful scars. Farm animals strengthen the immune systems of exposed children, whereas isolated children suffer.

Tom taught astronomy on the lawn, showing how planets revolve around the sun, and made a long exposure of stars above the horizon. The universe began with an explosion, yet much remains a mystery. On an outdoor expedition, stunned children found the fossil of a sea creature. Tom explained evolution: species evolve and adapt to habitats as genes change, and biology students confirm it with genetic tests.

Geese migrate across the globe to the bay. A bird of passage starves if its habitat disappears, so conservation topped the agenda. Tom formulated a framework of guidelines and criteria for waterside building. A chemical factory upriver sought permission to expand; its dense smoke and chemicals would compound the damage. Mei suspected a hidden agenda. Her conscience forbade staying indifferent.

The council appointed Tom to lay out the plan. Some members came across as passive or dull; complaints called it radical, ambitious, at best a novelty. Tom stayed objective, without boasting. His brief summarized the evidence, pointing to exact figures for carbon density at each soil depth: success resulted from routine, not mere luck. Owing to observation and calm tolerance, he won over the council.

The council voted to restrict the factory, constrain its waste and give priority to wetland conservation. Its voluntary initiative was bound to succeed: volunteers planted trees on the desert edge, cut a blaze on each trunk and built a shelter in the shade. On behalf of the village, Mei added her signature. Its signature solar pump secured funding, and the hitherto unknown village gained a considerable reputation.

Then an intense storm sank a boat, a rail segment was suspended, and a blaze in the timber store caused chaos. Nerves were strained; repairs strained the budget. Tom adjusted the schedule, curbed waste and minimized risks with restraint. Nobody could speculate about the odds of the next disaster; the future stayed vague. A paradox: change rendered life stable. Conversely, villages refusing change faced inevitable decline.

Scientists came to evaluate the organic farm. Their scrutiny was intense, yet their extensive report called it a worthy, leading example of organic growth that surpassed expectations. Undoubtedly, success lies in collective engagement and acceptance, they wrote, drawing a distinction between change and talk. The report informed national guidelines, offered a new definition of success and distinguished the valley. Inspired, a northern counterpart opted to reproduce it in a parallel project.

Visitors arrived in unexpected quantity. Mei, accompanied by the donkey, gave brief tours. Its gentleness, a characteristic visitors found attractive, invited children to interact with it. A sign at the entry offered an explanation and an instance of each method. One desirable trick: rotating crops cuts reliance on fertilizer. Tom seized the cue and founded a shop, a new sales channel for organic food, which bolstered income and reinforced success.

After the guests' departure, Mei watched milk foam as it boiled. Tom was fairly sure the soil, and likewise the harvest, would improve. Weather still dictates much; their existence comprises sun, soil and people. Tom's premise was realistic: an imaginative idea, implemented at a steady pace by people who dedicate their time, can unify a community, enrich its land and fulfill its hopes. That inspiration will steer them on to consolidate gains and never quit.