2023届专题09数学答案

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第二节主题语境：人与自然一生态保护保护北极熊种群【主旨大意】本文是一篇说明文。文章介绍了北极熊种群数量越来越少、迫切需要保护的现状。【解析】The polar bear is found in the Arctic Circle and some big landmasses as far south as Newfoundland.While they are rare north of88,there is evidence 61.that they range all the way across thethat引导同位语从句，补充说明evidence的具体内容，引导词在句中只起连接作用Arctic,and as far south as James Bay in Canada.It is difficultt tofigure out a global population of polar bears as much of the rangehas been 62.poorly studied;however,biologists calculate that修饰谓语has been studied,作状语there are about 20,000-25,000 polar bears worldwide.Modern methods 63.of/for tracking polar bear populationsmethod of/for doing sth.“做某事的方法'have been employed only since the mid-1980s,and are expensive64.to perform consistently over a large area.In recent years some“be 形容词 todo”句型中通常使用不定式的主动形式表示被动意义Inuit people in Nunavut 65.have reported increases in bearIn recentyears为现在完成时标志词；主语some Inuit people为复数sightings around human settlements,leading to a 66.belief that前有不定冠词a修饰，且作leading to的宾语，用名词populations are increasing.Scientists have responded by 67.noting作介词by的宾语，用动名词形式that hungry bears may be congregating()around human set-tlements,leading to the illusion (that populations are68.higher than they actually are.Of 69.the nineteen recognizedthan为比较级标志词特指已知的19个北极熊亚种群polar bear subpopulations,three are declining,six 70.are stable,时态与“three are declining”一致；six指six polar bear subpopulations,所以谓语动词用复数one is increasing,and nine lack enough data.

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第四部分写作第一节短文改错主题语境：人与自我一生活与学习一发现自己的足球天赋【主旨大意】本文是一篇记叙文。文章主要讲述了作者因为一件偶然的事情对足球产生了兴趣，最终成为了一名好球员的故事。【解析】I became interesting in playing football thanks to a smallinterestedbe/become interested in“对…感兴趣'accident.One afternoon where I was in primary school,I waswhen先行词afternoon表示时间，定语从句缺时间状语walking by the school playground.Suddenly football fell just ina泛指“一个足球”，football为以辅音音素开头的可数名词front of me but almost hit me.I stopped the ball and kicked itand前后为顺承关系hardly back to the playground.To everyone's surprising,the ballhardsurprise指用力地把球踢回操场，to one's surprisehard表示“猛烈地：用力地”“使某人惊讶的是”went into the net.All the football player on the playgroundplayersplayer为可数名词且其前有限定词“all"修饰，应用复数形式cheered loudly,say that I had a talent for football.Fromnowsayingthen与其逻辑主语为主谓关系，指在“a small accident”现在分词作伴随状语后，用from then onon,I started to play my football with classmates after school.play与球类名词连用时，球类名词前不用限定词I am a good player now.