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课件网) 专题三 完形填空 题组五 A 语篇类型：记叙文 主题语境：人与自然 （2025·江西师大附中等校联考） To some, oysters are a culinary （食物的） delight or the creators of shining pearls. But for Demi Johnson, these seemingly . .1. . shellfish can play their parts in another way. . .2. ., just a single oyster can clean up 50 gallons of seawater daily by filtering （过滤） out harmful substances. When many oysters gather together, they form reefs （礁） that offer . .3. . to countless marine species. Demi discovered oysters' . .4. . power through oyster gardening— a （n） . .5. . that oysters are raised in cages underwater. Back in 2022 when she first . .6. . the work, she was totally a green hand. Recently, after completing the free training course . .7. . by the Mississippi Oyster Gardening Program, she now becomes well . .8. . about the subject. Every week, Demi heads for her cages, dragging them up and shaking to . .9. . them of seaweed and mud while checking for . .10. . like crabs and snails that might harm oysters. Once her oysters mature enough, she will “transplant” them to reefs, where they will help . .11. . the oyster population. New baby oysters need attachment to these adult oyster shells to grow. Demi's work creates a cycle of . .12. .. So far, Demi has successfully raised over 1,500 oysters. Her . .13. . even earned her a National Geographic award. . .14. . keeping ＄1,000 prize for herself, she donated to further conservation work. For Demi, the real . .15. . is the satisfaction of knowing she's making a real difference to marine ecosystems.#1.6 1. ( ) A. humble B. odd C. symbolic D. alternative A [解析] 根据下文中的“just a single oyster can clean up 50 gallons of seawater daily by filtering out harmful substances”可知，牡蛎能净化 海水、过滤有害物质，这说明牡蛎看似不起眼（humble），却有重要 作用。 2. ( ) A. Annually B. Strangely C. Initially D. Amazingly D [解析] 根据下文中的“just a single oyster can clean up 50 gallons of seawater daily”可知，一只牡蛎每天能净化大量海水，这是令人惊讶的 （Amazingly）。 3. ( ) A. energy B. shelter C. bonus D. qualification B [解析] 根据上文中的“they form reefs”以及常识可知，礁石可以为海洋 生物提供庇护所（shelter）。 4. ( ) A. electrical B. temporary C. ecological D. imaginary C [解析] 根据上文中的“just a single oyster can clean up 50 gallons of seawater daily by filtering out harmful substances”可知，牡蛎能净化 海水、过滤有害物质，这些都体现了它们的生态（ecological）作用。 5. ( ) A. practice B. opportunity C. resolution D. sample A [解析] 根据下文中的“that oysters are raised in cages underwater”可知， 这里描述的是一种养殖牡蛎的做法（practice）。 6. ( ) A. broke down B. related to C. withdrew from D. took up D [解析] 根据下文中的“she was totally a green hand”可知，这里说的是 她开始从事（took up）牡蛎养殖这项工作。 7. ( ) A. shut B. run C. restricted D. skipped B [解析] 根据下文中的“by the Mississippi Oyster Gardening Program”可 ... ...
