the American Red Cross hospital in Milan可知，海明威在那次夜袭中身受重伤。35.C。理解主旨要义。文章的主体部分分别介绍了海明威在Milan和Fossalta的经历。最后，作者总结了海明威在意大利的战争经历促成了他的经典作品A Farewell to Arms。因此，本文用Young Hemingway in Italy作标题最合适。第二节主题语境：人与自我一一生活本文是说明文。文章介绍了如何解决邻里间的矛盾。36.G。根据下文中的so he or she may not even be aware that their activity is a source of concernoyou可知，邻居们可能意识不到自己的行为影响到了他人，因此设空处应该指出邻居和我们看问题的角度不同，G项符合语境。下文中的he or she指代G项中的yourneighbour.37.F。上文提到通过写信与邻居沟通的方式，F项指出需注意写信的语言和用词，符合语境。F项中的language和words都与上文中的letter相呼应。38.A。根据下文中的such as a mediator可知，下文阐释了设空处，设空处应是mediator的上义词，而A项中的a third party包含了a mediator,符合语境。39.C。根据下文中的making a complaint about your neighbour's actions to a responsibleauthority.可知，下文提出了另一种解决邻里间矛盾的方法，因此设空处应与矛盾无法解决相关，C项符合语境。C项中的the matter和下文中的the problem相呼应。40.D。根据下文的内容可知，本段旨在说明邻里间的冲突尽量不要上升到“对簿公堂”的地步，D项呼应了该主旨，符合语境。D项中的law and lawyers和下文中的Legal battles和legal action相呼应。【补充解释】1.low-key(para.1):低调的，不招摇的2.take on sth(para.3):看法；意见语言运用第一节主题语境：人与社会一一社会本文是新闻报道。12岁的珊文·古立斯·铃木用自己筹到的钱去往巴西的里约热内卢参加联合国大会，并在会上做了发言，她的发言引起了人们的广泛关注。41.A。根据下文中的when she was12可知，珊文当时还很小。42.B。根据文中的she wanted not only to go there but also to ..something和下文中的shehad something to say可知，珊文决定要去参加联合国大会并要发言。43.A。根据文中的She started to raise money for the.and when she was12,she had sufficientmoney for the11,000-kilometre journey可知，珊文开始为去巴西的旅行筹钱，当她12岁的时候，她筹集到了足够的费用。44.B。根据下文中的she had something to say,and when she made her five-minute speech tothe UN Assembly可知，珊文确定自己有话要说。45.D。根据下文珊文的发言内容以及最后一段中的Severn showed that young people canmake a difference可知，珊文为了做一场有影响力的发言而付出了很大的努力。46.C。根据下文中的pollution and the hunting of animals to extinction可知，珊文谈到了环境问题。47.D。48.B。根据下文中的She contrasted them with children in richer countries who havemore than they…and throw things away可知，珊文提到了世界上许多地区的儿童的状况，尤其是处在贫穷和饥饿中的儿童。

结一致共抗疫情的情形。31.C。理解主旨要义。通读全文可知，本文主要讲述了毛伊岛的Skylar Kuroda在SisterCities International Young Artists and Authors Showcase2021这一比赛中因其一首诗荣获诗歌组的第一名。D篇主题语境：人与社会一一科学本文是说明文。研究表明，男性在夏季会吃得更多，这是因为男性的皮肤脂细胞在夏季会释放更多的胃饥饿素(ghrelin)。32.A。理解具体信息。根据第二段中的Levy and her team noticed the unexpected effectduring experiments on mice that explored mechanisms behind skin cancer可知，Levy原本要做的实验是找出小鼠患上皮肤癌背后的机制。33.B。理解具体信息。根据第三段中的To see if humans do the same,the researchers usedexisting data on...national health survey可知，研究人员为了证实人类是否也有类似的情况，参考了一份政府常规膳食调查问卷，由此可知，研究人员是参照政府调查而得出结论的。34.D。推断。根据第五段中的exposing male mice to UV light,,which is present in sunlight,raised levels of ghrelin secretion Boosted ghrelin secretion was also seen in skin samples thatwere.to UV light in the lab可知，不管是雄性动物皮肤还是人类男性皮肤，紫外线光照(UV light)都会导致ghrelin(胃饥饿素)水的提高。35.A。推断。根据最后一段中的It is unclear why the effect happens,,but it may be an adaptiveresponse to fuel greater physical activity in summer可知，虽然Ley无法确切解释这种情况为什么会发生，但她推测这可能是人在夏季的一种本能调节，因为在夏季需要消耗更多的能量。因此，作者在文章结尾引用Levy的话是为了给该研究一个可能的解释。第二节主题语境：人与自我一一生活与学本文是说明文。文章主要介绍了如何提高专注力、保持大脑敏锐的三个建议。36.A。根据下文中的But don't believe the hype可知，设空处与相信某些夸张宣传有关。A项符合语境，与后面的分句合起来表明很多网上的信息对提高脑力的方法进行夸张宣传，误导读者。A项中的believe与下文中的believe是原词复现。37.C。根据本段小标题Create the right environment和下文中的surround yourself withobjects…可知，作者在本段强调环境的重要性，重点是周围物体的设置，因此C项“你应该注意周围的物体”符合语境。C项中的objects和surround分别与下文中的objects和surround是原词复现。38.G。本段介绍浏览可爱的儿童或动物幼崽照片对提高注意力的帮助。选项中的G项与照片有关，G项中的these images指代上文中的cute baby photos。39.F。根据下文中的The foods that will ruin your productivity.可知，设空处与“smart'”foods相对应，介绍影响生产效率的食物，F项符合语境，与上文形成对照。F项中的affectyour focus and productivity与下文中的ruin your productivity相呼应。40.B。根据下文中的but when it comes to the human brain,,there are things you can do tosharpen.its vitality可知，设空处应与下文形成转折，B项符合语境，表明守旧的人很难接受新事物，与下文大脑可以通过一些活动来磨砺、适应和改变它的活力形成转折。语言运用第一节主题语境：人与自我一一做人与做事本文是夹叙夹议文。作者饱受抑郁症困扰20多年，在作者进行深入反思之后，他决定开始

ways than just looking at it,especially a traditional storyline or plot that we all learned in school.With those words of encouragement and wisdom,good luck!We can't wait for your submissions!21.How many stories can a participant submit at most?A.One.B.Two.C.Three.D.Four.22.What may the first-place prize winner get?A.A $1,000 prize.B.A return of $17 entry fee.C.Meeting with Brandon Hobson.D.Publication in a past issue of ASF.23.Which of the following may be qualified to participate?A.Volunteers of ASF.B.A new fiction writer.C.Prize winners last year.D.Students of the judge's.BMuch of our thinking about health is based on wishful thinking.But science providesclear and simple advice for a healthy life.Graham Lawton explores the evidence.Grahamproves that you don't have to be a health and fitness extremist to be reasonably healthy.Hehas rounded up the latest and strictest health research and changed it into useful advice on allthe big health questions:diet,weight loss,exercise,sleep,ageing and so on.Graham,New Scientist feature writer,is not the common health expert.He sometimeseats fast food.He has a gym membership but rarely uses it.And he takes medicine to keep hisblood pressure under control.He neither has a diet plan nor a 6-week program to keep fit and thin.But he does have a much better weapon:science.In a talk,Graham explains the basicscience,tells people some of the secrets of science,teaches people to use the ability of judge-ment to tell the good from the bad,and helps them to see beyond the headlines.The talkallows people to eat healthily,lose weight,and sort the truth out from science facts.But he loves outdoor sports.Last year Graham cycled over 1,200 miles and ran the samedistance of 15 marathons.He often goes swimming outdoors,walks up eight flights of stairsto his desk instead of taking the lift.He eats his five copies of fruit and vegetables a day,keeps enough water in his body,and doesn't eat much meat.Despite all the bad habits,hisgood ones seem to be winning.Graham is 50,but his "biological age"was recently measuredas45.24.What can we learn about Graham?A.He has some bad habits.B.He has an extremely strict diet.C.He looks down on common health experts.D.He always bases health on wishful thinking.【高一英语第4页（共10页）】·23-198A·

28.What is the new curriculum supposed to be according to Curran?A.Appealing.B.Controversial.C.Typical.29.What can we know about computing subjects in Australian schools?D.Challenging.A.They are harder than advanced maths subjects.B.They are valued negatively by many schools.C They are less popular with today's teenagers.D.They are keeping a continuous rate of updating.30.How does the new program encourage the students to take computing subjects?A.By offering high-tech jobs to them.B.By turning lessons into virtual ones.C.By letting them choose subjects freely.D.By showing applications of the subjects.31.What can be the best title for the text?BA.A new curriculum fails to work with Australian studentsB.Australian students are deserting the computing subjectsC.How did an Australian student fall in love with computing?D.Why did Australian schools stick with computing subjects?DMany sensing systems used in water have a problem:They rely on batteries that are oftenmade from unsustainable materials,so such batteries will need replacing at some point.To look for a cleaner,more long-lasting alternative,Zhonglin Wang at the Chinese Acad-emy of Sciences,Beijing,and his colleagues have created a self-charging buoy ()It usesnanogenerators(纳米发电机)to gain power from the movement of waves..The buoy consists of an acrylic(丙烯酸的)ball about 10 centimeters across and fournanogenerators connected to a part that collects the produced charge.As the water movesback and forth through the nanogenerators,they generate around 24.5 milliwatts of power.It is suggested that the buoy could be used to check and monitor water levels for earlyflood warning systems.However,there are already many effective and cheap alternatives forthis task,says Wouter Buytaert at Imperial College London.Non-contact methods,such aslidar(激光雷达)，are probably more suitable for sensing water levels,he explains."The new power generation method could prove useful for situations in which non-contactmethods aren't workable,though,such as water quality sensing,"Buytaert says."Therehave been devices similar to the buoys in measuring and checking long-term water quality.Butif such application is combined with the function of power colecting shown here,it could bemore promising,"Buytaert says.However,if used in rivers,the buoy would possibly be damaged by rising oiomoving water,especially if they are fixed at the rapids of the flood as an early warning【高三英语第6页（共10页）】·23-210C·

本文是新闻报道。一天午夜，一位出租车司机在行驶过程中偶遇需要帮助的老年人并及时伸出了援助之手。21.B。根据下文中的Wells ran outside可知，Wells从家里跑出来寻求帮助。22.A。23.C。24.B。根据文中的Her husband had..out of bed and after20 minutes of..shewas unable to.him off the floor和下一段中的help her husband back into bed可知，Wels的丈夫从床上摔了下来，她试图将他从地板上抬起来，但经过20分钟的努力，最终还是以失败告终。25.D。26.B。根据文中的Wells ran outside to see if any of her neighbors were still up but couldnot see any lights on in the nearby.可知，Wels跑到外面，想看看是否还有没睡觉的邻居，但她没看到附近邻居家里的灯亮着。27.D。根据文中的She was about to.an ambulance when she saw..coming down her road和上文中的He was about to pick up a customer in Salwayash around midnight when Lynda Wellscame...out of her house可知，Nells正要叫救护车，突然看到一辆车的车灯向她靠近。28.B。根据上文中的Her husband had.out of bed和文中的She asked Good if he wouldcome inside and ..her,to which he agreed,and together they were able to help her husband backinto bed可知，Nells问Good是否愿意进家里帮她，Good同意了，他们一起帮助Wells的丈夫回到床上。29.A。30.A。根据文中的Wells did not.have time to ask the driver for his name before theywent their.ways可知，Nells甚至没来得及问一下司机的名字，就与司机分道扬镳了。31.C。根据最后一段中的I was able to connect with him on Facebook可知，通过社交媒体，Wells与Good取得了联系。32.A。33.D。根据文中的I am so.that Good just happened to be driving down the road atthat.moment可知，Wells说：“我太幸运了，Good恰好在那一刻开车经过这里。”34.C。根据下文中的come inside and help me可知，Good心地善良，他进家帮助了Wells夫妇。35.C。根据下文中的I was able to connect with him on Facebook so I could take him a gift tosay thank you可知，Nells很开心自己能够在Facebook上与Good取得联系，这样她就可以给他送礼物表示感谢了。第二节主题语境：人与社会一一文化本文是新闻报道。新西兰两位高中生荣获2022“新西兰汉语周”青少年大使称号。36.being。考查动词-ing形式。设空处作for的宾语，应用动词-ing形式，故填being。37.celebration。考查名词。根据设空处前的a可知，应用名词，表示“庆祝活动”，故填celebration。38.held。考查动词-ed形式。设空处与from September25 to October1一起作后置定语，修饰a.and culture,且hold与a...and culture之间为逻辑上的动宾关系，应用动词-ed形式，故填held。39.were offered。考查一般过去时的被动语态。根据语境可知，设空处所在句描述的是发生在过去的事情，且Joshua and Wil训iam与ofer之间为被动关系，应用被动语态，故填were offered。40.impressive。.考查形容词。设空处作定语，修饰performances and results,.表示“令人印象深刻的”，故填impressive。41.of。考查固定搭配。pay off为固定搭配，表示“得到回报”，故填off。42.what。考查连接词。设空处引导的句子作of的宾语，且设空处在从句中作had

度的两倍，而最新的研究发现，北极变暖的速度几乎是全球变暖速度的四倍。也就是说，北极变暖的速度远比预想得快。33.D。推断。第二段首句是本段主旨句，作者在本段主要解释为什么北极比地球上其他地方变暖的速度快。作者指出了最显而易见的一个因素一一海冰的消失。之后，作者对此进行了具体的解释一一永久冰层变少，季节性的冰融化早，再次形成较晚。融化的海水吸收阳光，使得海水升温，引起更多的冰融化，从而加快了北极变暖的速度。34.C。推断。根据第四段的首句Rapid Arctic warming has an effect on people and animals living far from thepolar areas及该段所给实例可知，Davy认为，北极气温上升会影响到其他地方。35.A。理解具体信息。根据倒数第二段的内容及最后一段中的We have more work to do to find the cause forthe model error可知，Armour认为研究者们应该努力改进气候模型。第二节主题语境：人与自然一一环境保护本文是说明文。土库曼斯坦的达尔瓦扎天然气坑洞的大火燃烧了40多年，该国计划扑灭这一“地狱之门”大火。36.E。E项与本空前两句组合，对达尔瓦扎天然气坑洞的现状、成因、别称和特点作了较为全面的介绍，符合语境。37.D。本空上句提到他们（科学家们）认为几周后该坑洞中的天然气就会烧光，D项指出“然而，大火已经持续燃烧了40多年”，与本空上句构成转折关系，介绍了与科学家的预测相反的结果。38.A。本段分析了为什么要灭火的原因。根据本段中的The second reason推断，本空为第一个原因，故选A项。本空后两句指出土库曼斯坦的天然气含量，说明这些天然气本可用于发展经济、改善民生，结果却被白白烧尽，验证了A项为正确选项。A项中的The first reason has to do with与本段中的The secondreason has to do with相照应。39.B。本空上句提到研究表明，土库曼斯坦的甲烷排放强度居世界第二，B项“但为什么甲烷排放如此危险？”为过渡句，从甲烷排放的角度继续探讨该坑洞的大火对环境的破坏，本空下句接着分析了其原因，与B项意思连贯。B项中的methane emissions与本空上句中的methane emissions构成原词复现关系：40.F。根据本段前的小标题“火最终会被扑灭吗？”可知，本段介绍该天然气坑洞中的大火能否被扑灭，本空下句说明达尔瓦扎的天然气正在缓慢燃烧，而不会自然熄灭，由此推断，F项“目前还不清楚这一天然气坑洞的大火是否会成功扑灭”符合语境。语言运用第一节主题语境：人与社会一一体育本文是记叙文。Kekoa Latimore成立了非营利组织Pushing for Education,教圣迭戈的中学生玩滑板。41.C。根据本段中的has loved skateboarding since his childhood可知，Latimore从小热爱玩滑板，他成立了Pushing for Education组织，与青少年分享这份热爱。42.D。根据下段中的He teaches at three schools now可知，Latimore去圣迭戈的一些中学，利用放学后的时间教学生玩滑板。43.A。44.B。45.C。根据本段中的You have to learn how to accept falling and getting hurt和even if you knowyou might fail可知，Latimore谈及了学生应该如何面对失败。他认为，为了学好滑板，他们必须学会如何接受摔倒、受伤，即失败，即使失败了也必须学会再次尝试。他认为学滑板能教会学生很多人生经验。46.D。根据本空前的He teaches at three schools now可知，Latimore目前在三所学校教滑板，去更多的学校是他的一个目标。47.A。根据本空后的host an exhibition,inviting many schools to skate together以及下段的内容可知，Latimore举办了公开示范表演，邀请许多学校的学生一起玩滑板，这说明他不想局限于只教学生们玩滑板，还想把这项课后活动提升到一个新的水。

阜阳一中20222023学年度高一第一学期第三次月考英语考生注意：1.本试卷满分150分，考试时间120分钟。2.答题前，考生务必用直径0.5毫米黑色墨水签字笔将密封线内项目填写清楚。3.考生作答时，请将答案答在答题卡上。选择题每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑；非选择题请用直径0.5毫米黑色墨水签字笔在答题卡上各题的答题区域内作答，超出答题区域书写的答案无效，在试题卷、草稿纸上作答无效。4.本卷命题范围：新人教版Book()ne。第一部分听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。1.What does the woman think of her dress?A.It's a little small for her.B.It fits her very well.C.It's quite beautiful.2.How will the speakers go to the hospital?A.On foot.B.By bus.C.By bike.3.Where are the speakers?A.In Blackpool.B.In London.C.In Manchester.4.How much does the ticket cost?Λ.$3.B.$7.C.$10.5.What are the speakers mainly talking about?A.A football match.B.Their weekend plans.C.The weather.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料，回答第6、7题。6,Who will meet the woman at the airport?A.The man.B.The man's workmate.C.The man's brother.7.What does Mark look like?A.He has red hair.B.He's rather thin.C.He wears a brown cap.听第7段材料，回答第8、9题。8,Why does the man want to move?A.He dislikes his roommate.B.The rent of the house is rising.C.He finds it uncomfortable to live in the house.23031A

"Here I am!"Dylan cried.The fireman tied a red band around Dylan's eyes and took him for a drive.The fireman helped Dylan out of the car and led him somewhere with a lot of people.Then a fireman untied the band,and Dylan saw that he was in a firehouse.He was surrounded byfiremen!"Dylan,"one of them said."I'm Captain Ryan,and I hereby make you a deputy!"Dylanwas glad!He couldn't stop smiling,and he was even happier when he went for a ride in the big firetruck!It was the happiest day in Dylan's life.Many years later,he returned to the fire station-this time as a fireman and he saw his pictures still hanging on the wall.He'd made it!He'dbecome a hero！部分解析阅读第一节A篇主题语境：人与自我一一生活本文是应用文。文章是四条徒步路线的活动简介。2l.D。理解具体信息。根据The Introductory Walk部分中的we will pass Dumcrieff Housewhere he once lived可知，这条徒步路线将路过历史名人的故居。22.B。理解具体信息。根据The Dark Sky Walk部分中的Elizabeth will..tell you some of thescience and stories behind the stars and the rest of our universe可知，由Elizabeth Tindal带队的路线适合天文爱好者。23.B。理解具体信息。根据The Riverside Meander部分中的It might be a little muddy inplaces so you are advised to wear walking boots可知，在The Riverside Meander徒步路线中会有泥泞的路段，因此该活动强调了参与者应该穿徒步靴。B篇主题语境：人与自我一一做人与做事本文是记叙文。美国知名畅销小说家John Grisham在成为律师之后才发现自己对写作的热情，他坚持书写并走上了另外一条精彩的人生路。24.C。理解具体信息。由第一段中的John Grisham had no interest.professional career和第二段中的Inspired by a case..write a novel可知，Grisham在走上律师职业道路之前对写作并没有兴趣，他是在一次法庭案件观摩之后才燃起热情，决定开始写小说。25.A。推断。由第二段中的Although A Time to Kill only sold a disappointing5,000 copies可知，Grisham第一部小说的市场反响并不是很好，销量较低，这说明只有一少部分人对他的小说感兴趣。26.B。理解具体信息。由第三段中的With the success of..write full-time可知，Grisham的第二部小说大获成功，他因此放弃律所，专职从事写作。27.D。理解具体信息。由最后一段中的He returned.win a settlement for the family of arailroad worker可知，Grisham参与这起法律案件是为了维护工人家庭的权益。C篇主题语境：人与社会一一科学与技术本文是说明文。纳米技术的发展运用正在把科幻故事中的场景变为现实。28.B。理解词汇。根据第二段中的nanoscience has explored ways of applying this research todifferent types of technology可知，科学家正把纳米技术应用到不同领域，下一段提到研究成果，故本句起到承上启下的作用：它已经开始产生越来越多样且有趣的发展。engender意为“产生；带来；引起”。29.A。推断。根据第三段中的Although not yet available in hospitals,this gel is likely to help

23.C。理解具体信息。根据Curriculum information中的Module4一Energy,HilIs,,andBumps-Energy gained可知，在第四单元的学中，学生可以了解能量。B篇主题语境：人与自我一一生活与学本文是记叙文。文章介绍了英国的一位“钢铁奶奶”，她是英国年龄最大的铁人三项女性运动员，她还创办了慈善团体来鼓励老年人一起运动。24.A。理解具体信息。根据第一段中的Just as incredible is the fact that Edwina Brocklesby or“Eddie'”as she's known only took up running in her50s可知，Eddie在她50多岁的时候才开始练跑步。25.D。理解具体信息。根据第二段中的It promotes sport for older people and started withevents in London's parks和Our core message is that it's never too late to start exercising可知，Eddie创办Silverfit的目的是鼓励老年人锻炼身体。26.B。推断。根据第三段中的but by the end of the first month I could run up hills.Thanks toSilverfit,,today I am really fit,I am off all medication可知，身患癌症的Len Bass为了重获健康开始参加Silverfit,.坚持运动之后他的身体有明显好转，他已经停止了所有药物治疗。27.C。推断。根据第一段中的With her boundless energy and infectious smile she inspireseveryone she meets和倒数第二段中的I've got my freedom back and it's all down to thewonderful Eddie..She's amazing可知，许多人在Eddie的鼓舞下开始参与运动并变得更加健康。由此可见，她的故事很鼓舞人。【补充解释】lose count (of sth)(para.1):to forget the total of sth before you have finished counting itbe down to sb(para.4):be caused by a particular person由…引起（或造成）C篇主题语境：人与社会一一历史、社会与文化本文是议论文。作者通过举例论证了语言的变化是不可避免的，也是人类社会发展进步的需要。28.C。推断。第二段中作者提到不同地域的人表达方式不同，即使是同一社区，不同年龄、籍贯、社会或教育背景的人说话方式也不同，人们在交流过程中会受到彼此的影响，从而改变自己的语言，这表明：语言变异是受到人为影响的。29.B。理解观点、态度。根据第三段中的Swift once wrote that we should find a way to stopour language from changing可知，Swift对语言的变化持否定态度。30.C。理解具体信息。根据最后一段中的Samuel Johnson wrote about his desire to write adictionary that would fix the pronunciation of English and keep it pure可知，Samuel Johnson编撰字典的初衷是保护英语的纯粹性，规范人们对英语语言的使用。31.A。理解主旨要义。文章阐述了语言变化的各种原因，同时表明这种变化更多情况下是自然发生的，是不可避免的。因此A项最适合作本文的标题。D篇主题语境：人与自然一一自然生态本文是说明文。一些小鸟会从其它动物身上偷毛发来搭建自己的鸟巢，这种行为具有一定的冒险性，但是研究人员认为这值得它们冒险。32.B。理解具体信息。根据第二段中的The behavior has rarely been described by scientistsBird watchers and people with dogs knew much more about this behavior than scientiststhemselves可知，科学家并不了解鸟从其它动物或人身上偷毛发的行为。33.D。理解观点、态度。根据第三段中的During the count,,they saw something unusual.

(2)由题知g()=2sin(4x-零)，由方程g)-号，得8in(4x晋)-号，即sin(4x-子)-3.....。。。......。6分因为x[语竖1，可得4一骨∈[受6m]。设0=4-吾，其中0e[受6m],即sim0=4…7分结合正弦函数y=sin0的图象，如图yy=00,5元可得方程sin0=子在区间[受，6m]有5个解，即n=5,….…9分其中0十02=3π，02十0s=5π，0十04=7π，04十0=9π，即4知-子+4-号=3m,4-子+4，-号=5m,4-号+4-号=7,4-晋+4x-号=9m解得十十=竖十云=瓷么十=登12…11分所以a+2+2十…十2x4十=（十）+(2+)+（十x)+(x4十）=23·…12分2解，0旧为。n28西-27所以乙N08-吾，A81=-2.∠0B产-ABI4OA=4sin0,……2分10B到=4sim(3F-0）=4sim(开+0）.……4分(2)因为AB引=22，∠MAB=∠MBA=T,所以AM=BM=2,…5分在△OMB中，由余弦定理易得OM2=|OB+|BM2-2 OBBMI cos(于+0），|oM2=16sim(年+0)+4-16sim(年+0)cos(F+0）=16simr(年+9）+4-16sin(至+0）cos(至+0）=8[1-cos(+20)]+4-8sin(5+20）=8sim20-8c0s29+12=82sin(20-T）+12,…7分因为0（不，受），所以29-∈（，F）sin(20-T)(91……8分当sim(20-）=1，即9=时，1OM2取最大值12+8√2，OM取最大值2十22，…10分此时10A=4sin=2V2+厄，OBl=4sin(于+F)=2V2+厄，故当|OA|=|OB|=2√2+√2时，OM取最大值2+2√2.12分【高一下学期第二次阶段性考试·数学参考答案第4页（共4页）】23096A