2019届高三二轮专题复习综合测试题(二十七)
2019届高考英语第二轮知识点预测复习题27

名师预测一、AHi, I'm Michael J. Lindell, Inventor, Manufacturer, and President of My Pillow Corporation. Years ago, like you, I found myself extremely frustrated with my pillow going flat. Most pillows are designed to break down. I would wake up in the morning with a sore arm, my neck would hurt, my fingers would be numb, and I would toss and turn all night not knowing why. I tried many different pillows on the market and none of them worked. So, I started to research pillows and study sleep disorders.I was determined to create the world's healthiest, most comfortable, and strongest pillow. My Pillow uses our unique, patented medical fill that stays cool, corresponds to your exact individual needs regardless of sleep position, and stays healthy for your full 10-year guarantee. It is non-allergic, and you can wash and dry it as easily as your favorite jeans.My Pillow is not available in stores. I have spent the last seven years selling My Pillow face-to-face at fairs, expos and events. Hundreds of experts and medical doctors carry and recommend them for their patients. I have been featured on medical talk shows that air around the world. I have sold hundreds of thousands of pillows and have received great gratitude from satisfied customers regarding how My Pillow has changed their lives and provided a more comfortable, restful sleep.And, My Pillow comes in different sizes and is fit for your size andsleeping pattern. So you can be assured that you will have the most comfortable pillow for you.I truly believe it is the best pillow in the world and that if everyone had one and got better sleep, the world would be a much nicer place.文章大意:本文是一篇说明文。
江苏省职业学校对口单招联盟 2019届高三年级第二轮复习调研测试 语 文 参考答案

江苏省职业学校对口单招联盟2019届高三年级第二轮复习调研测试语文参考答案1. C(A.肖xiào B.瞋chēn D.卮zhī)2. A( B.歪风邪气 C.趋之若鹜 D.两全其美)3. D(酬:实现)4. A(见第三册P114原文)5.C(A.搭配不当,将“工程”改为“运输工具”。
B.不合逻辑,“留学生吟诵社”不是朗诵爱好者,在后面加“的社员”。
D.成分残缺,在“生态乡”后加“构想”或“目标”。
)6.B(最后一个句号应放在后引号的外面)7.B(讳饰)8.D(议论)9.D(美国)10.A(应为作者从自己的生活和阅读说起,再展开对中外文学源流的叙述。
)11.C(选文没有涉及“语言具有形成、推动和发展人的感情的作用”的内容。
)12.D(选文没有运用引用论证的方法。
)13.B(A.选文第一段作者对人所共知的语言最基本的实用功能做了简略交代;C. 选文第三段仍是从文学创作的角度来论述语言的功能的;D.小说《祝福》中的祥林嫂总是反复地向别人诉说孩子被狼吃掉的悲惨故事,可以作为“语言具有心理的功能”的例证。
)14.B(文章采用分总结构。
)15.D(下定义:……,称为生物学地球观;……,称为化学地球观;……,称为物理学地球观;分类别:研究地学分三个时代来说明。
)16.C(逻辑顺序)17.D(A.物理学地球观是根据海底岩石的地磁走向推论出板块理论;B.将“现代分子生物学”与“传统生物学”位置互换;C.是指“就有可能打破植物动物的界限”。
)18.B(选文第三段从局部回到整体,总结自然科学体系。
)19.A(B.本文和《伯格曼法则在北极》不同,不是以科学考察的事实来验证科学理论的;C. 这里的“客人”运用比喻的手法形象地表达出了星的爆发的特点;D.本文语言准确严谨又平实通俗,切合科普说明文的要求。
)20.B(B项是定语后置的标志,其余各项是取独)21.D(A项“衡”通“横”;B项“倍”通“背”;C项“盖”通“盍”D项“奉”是进献)22.C(C项被动句,其余各项都是状语后置句)23.C(A项“从而”古义跟从并且;B项“智力”古义智慧力量;D项“以为”古义把……作为)24.B(B项使动,其余各项都是形容词活用作动词)25.A(三个故事分别为“完璧归赵”“渑池相会”“将相和”)26.钟鼓馔玉不足贵,但愿长醉不复醒。
高三二轮专题复习综合测试题(二十七)

1 书面表达
假设你是健康俱乐部的一位志愿者, 根据以下要点, 写一篇 100 词左右的英语短文, 帮
助广大市民更好地了解和预防 H1N1 流感: (1)该流感已在许多国家爆发,病例每天持续增
多; (2)该流感与其他季节性流感传播方式一样,通过咳嗽、喷嚏等在人群中传播;
4 阅读填空 When are kids ready for friends ,
and how can parents help? __1__The roots of friendshilife . When babies like my daughter play , even alongside other children , they’ re still playing by themselves .It ’ s called parallel play. By the time a child is two , she’ ll be interested in taking turns and playing cooperatively . __2__This helps kids learn languages and other skills from each other . Children between the ages of three and six play directly with each other . Their games have rules. And friendship only gets more important from there on out , as kids gain the life skills that will lead to future ind ependence from their parents. __3__Weston’ s three advice books for girls , list a few things parents can do to instill friendship skills . “ They can be role models themselves by enjoying their own friends and showing that friendship is part of their own lives ,” Weston says.“ Small children need to learn to say thank you and wave bye- bye,” Weston says. __4__ Weston’ s point here is important : __5__They ’re not focused on being liked as much as they actively like others . A . Kids who make friends easily take an interest in other people . B.If Sally jumped off a cliff , she will feel very sad . C.She’ ll still do some similar playing , though. D. All the time , parents can help ready their children for successful friendships . E. It ’ s well known that kids in middle schools place a high value on friendship . F. And they can pass on some of those unwritten rules of friendship . G. Older kids need to learn about hurt feelings . 1. __________ 2. ___________ 3. __________ 4. __________ 5. __________
2019版《3年高考2年模拟》高考英语二轮:模拟组合练(二十七)

模拟组合练(二十七)Ⅰ.阅读理解(2018河南高三4月毕业班高考适应性考试,D)When it comes to mental illness,many people often find it tough to get the help they need. This is especially true for young students to make the transition(过渡) to college life.“Sometimes,students don’t realize how hard it is to adjust to college,”said Laura Smith, associate dean of students at the University of Texas at Dallas.“You’re not the big fish in your classes anymore;you have all kinds of personal stress;you’re away from home.Dealing with these things is not easy.”Students who are going through these problems sometimes want to reach out.But if students don’t feel comfortable seeking help,many feel that it’s the responsibility of their university to help them.“I really wish that there was more importance placed on how counseling(咨询) centers help students,” said Comnie Trinh.“Counseling services are just as important as academics and sports.”Trinh,27,graduated from Texas Woman’s University in2015.During college,she hosted various workshops on how to handle mental health condition.Trinh used her own story to connect with students who might be facing similar problems.High academic pressures,cultural differences as an Asian American and stressful social situations stood out as some of the most common causes of Trinh’s anxiety.It was only after years of personal problems that she could admit that reaching out isn’t a sign of weakness.“If you feel you can’t connect with other people around you,you should address the issue without shame,” Trinh said.“You’ll find that there are a lot of people out there who sincerely want to help you.”1.The passage can be seen as the author’s reflections upon.A.college lifeB.counseling servicesC.mental healthD.cultural differences2.What’s Trinh’s preferred solution to the problems mentioned?A.Making self-criticism.B.Handing the problems actively.C.Solving the problems on her own.D.Finding the causes of the problems.3.What does the underlined phrase“connect with” in the last paragraph probably mean?A.Get along with.B.Join together with.C.Be related to.D.Get through to.4.What can we learn from the text?A.Counseling services help do research.B.Adjusting to college life is a piece of cake.C.Hosting workshops improves students’ ability.D.Being brave to get help is not a sign of weakness.Ⅱ.七选五(2018重庆七校第三次诊断)How to write about yourselfWriting about yourself can seem embarrassing at first.But don’t worry.1.Just introduce yourself.Writing about yourself can be tough,because you’ve got a lot to say, your whole lifetime of experiences,talents,and skills in a paragraph,or a couple of paragraphs. Whatever kind of writing you’re planning on doing,whatever your purpose is,just think about it like you’re introducing yourself to a stranger.What do they need to know?Start with a short list of your talents and interests.If you’re not sure what to choose to start, or if you’re only allowed to pick one thing for the assignment,2.3.Pick a specific one among many topics,describe it in detail,and use that to introduce yourself.It’s better to pick one thing and use it to describe yourself in lots of detail,than to give someone a big long list of general topics.Use a few good details.When you’ve got a specific topic,describe it specifically,giving us something unique to hold onto.Remember you’re telling us about you.So4.Be modest.Even if you’re very accomplished,talented,or cool,you want to come across like a down-to-earth person.5.List your accomplishments and your successes,but temper(使缓和)them with some more modest language,for example,if you want to say“I’m the best and most dynamic(精力充沛的;有创新思想的) worker at my company right now,so you should want to hire me for my talents”,just try“I was lucky enough to be awarded three‘Employee of the Month’ awards at my present job,more than any other employee” instead.A.try listing out as many of them as possible that will help you decideB.the more details you give,the better it will beC.Be dynamicD.Narrow your topicE.Don’t write about yourself to brag(吹嘘)F.Learn the basics and you’ll be able to make your personal writing stand outG.what seems the most interesting1. 2. 3. 4. 5.Ⅲ.语法填空(2018山东淄博一模)British Prime Minister Theresa Mary May paid an1(office)visit to China from Jan.31to Feb.2.She said in her2(speak)on Jan.31,“With the building of the global comprehensive strategic partnership towards the21st century between China and the UK,the relationship has3 (deep)by people-to-people and cultural exchanges between the two countries.”In exchanges between China and the UK,British tea has become a cultural part that has to be mentioned.Tea,4the important goods of the ancient Maritime Silk Road,was once an important carrier of Sino-British trade relations,and has existed for thousands of years.Throughbusiness and trade5has covered more than10,000kilometers and100years,Chinese tea has officially entered every corner of Europe.The UK,however,is the European country most6 (affect)by tea culture.The popularity of tea-drinking in Britain was first limited to the royal ter,when expensive7(tea)were sold in certain cafes,women were initially not allowed to enter.It wasn’t81706that Thomas Twining founded the world’s first dry tea and coffee shop in London.The tea shop quickly became a favorite place for London women.9(strong)promoted by those fashionable women,10(taste)tea gradually became popular among the upper class of Britain.In the eyes of people who love tea culture all over the world,Twinings tea has become a representative of British tea.1. 2. 3. 4. 5.6.7.8.9.10.Ⅳ.短文改错(2017河北唐山一模)假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。
中等职业学校对口单招 2019届高三年级第二轮复习调研测试 数学答案

中等职业学校对口单招2019届高三年级第二轮复习调研测试数学答案一、选择题(本大题共10小题,每小题4分,共40分.在下列每小题中,选出一个正确答案,请在答题卡上将所选的字母标号涂黑)二、填空题(本大题共5小题,每小题4分,共20分) 11. 4 12. 4 13. 34-14. ]1,43( 15. ]3,1[三、解答题(本大题共8小题,共90分)16. (本题满分8分)解(1)由题意得:不等式022>+-a ax x 的解集为R. 即,0442<-=∆a a所以10<<a . ……………………………4分(2)由题意得:⎪⎩⎪⎨⎧+≤->+>-2210220122x x x x ,所以31≤<x ,所以不等式的解集为]3,1( ……………………………8分 17.(本题满分10分)解(1)由题意得:A (3,8),0=b , 所以xa x f =)(,因为A (3,8)在)(x f 上, 所以2=a ,所以x x f 2)(=. ……………………………5分 (3)2=m ,所以153162)9(log )4()213(4=-+=-+f g g . ……………………………10分 18. (本题满分12分)(1)由题意得:A=1, 126543ππ-=T , 所以WT ππ2==,所以W=2,因为),过点(1-65)2sin(πϕ+=x y , 所以6πϕ-=,所以)62sin()(π-=x x f . ……………………………6分(2)因为1)62sin()(=-=πA A f ,因为A 为锐角, 所以3π=A ,因为23sin 21==∆A bc S , 所以2=c ,因为3cos 2222=-+=A bc c b a , 所以3=a ,所以2233sin sin sin ===++AaC B c b ……………………………12分 19.(本题满分12分)解:(1)由题意知基本事件总数为12. 表示双曲线的随机事件数为5.125)(=A P所以方程122=+b y a x 表示双曲线的概率为125. ……………………………6分(2)满足条件的事件B 是,1222≤+-nm n m 所以034≥-n m .165221431)(=⨯-=B P 直线0=-ny mx 与圆()()12122=-+-y x 相交的概率是165.……………………………12分20.(本题满分14分)解:(1)当1=n 时,12411=+a a 解得611=a 当2≥n 时,12411=+--n n a S ,所以0)1214()24(=-+--+n a n S n a n S 所以01224=--+n a n a n a ,即126-=n a n a ,所以311=-n a n a 所以}{n a 为等比数列,所以11-=n q a n a =n n )31(211)31(61⨯=-⨯…………………………6分 (2)①因为01211=+-+-+n a n a n b n a n b n a ,所以211=-++n a nb n a n b即21=-+n c n c ,所以}{n c 为等差数列,又11=c所以12-=n n c ……………………………10分②)121121(21)12)(12(111+--=+-=+n n n n n c n c所以12)1211215131311(21+=+--++-+-=n nn n n T ……………………………14分 21.(本题满分10分)(1)设该公司每天的最高产值为 z 万元。
2019届高考英语二轮复习专题精讲:第27讲-高考词汇2019拓展(含答案)

第27讲高考词汇2018拓展开篇语1.abandon2.abnormal3.abolish4.abortion5.abrupt6.absence7.absolute 8.abstract9.absurd 10.abundant11.abuse 12.academy13.accelerate 14.access15.accessible 16.accommodation17.accompany 18.accomplish19.accountant 20.accumulate21.accuracy 22.accustomed23.acknowledge 24.acquaintance25.acquire 26.acquisition27.acute 28.adapt29.adaption 30.addicted31.addiction 32.adequate33.adjust 34.adjustment35.admirable 36.admission37.adolescence 38.adolescent39.adopt 40.adore41.advocate 42.affect43.affection 44.agency45.agenda 46.agent47.aggressive 48.agricultural49.agriculture 50.alarm51.album 52.alcoholic53.algebra 54.alley55.allocate 56.allowance57.alongside 58.alternative59.altitude 60.aluminium61.amateur 62.ambiguous63.ambition 64.ample65.amuse 66.anchor67.anecdote 68.anniversary69.annual 70.antique71.apart 72.apparent73.appeal 74.appendix75.appetite 76.applaud77.applicant 78.appoint79.appreciation 80.appropriate81.approval 82.approve83.arbitrary 84.arch85.architecture 86.artificial87.assess 88.assessment89.assist 90.assistance91.associate 92.assume93.assumption 94.astonish95.athletic 96.attain97.attend 98.attraction99.authentic 100.authority101.autonomous 102.awesome 103.awkward1.bachelor2.bacterium3.bakery4.balcony5.ballet6.ban7.bandage 8.barber9.barbershop 10.bare11.barrier 12.bay13.beancurd 14.bedding15.behalf 16.being17.belly 18.beneficial19.bent 20.betray21.bid 22.bingo23.biochemistry 24.biography25.bishop 26.bless27.bond 28.boom29.booth 30.border31.botanical 32.botany33.bounce 34.bound35.boundary 36.bow37.boycott 38.bravery39.breakthrough 40.breathless41.brewery 42.brick43.brochure 44.brunch45.buddhism 46.buffet47.bungalow 48.burden49.bureaucratic 50.burst1.cab2.cafeteria3.calculate4.campaign5.canal6.candidate7.capsule 8.caption9.carbon 10.carrier11.carve 12.cast13.casual 14.catalogue15.catastrophe 16.category17.cater 18.catholic19.caution 20.celebration21.cell 22.certificate23.champion 24.changeable25.chaos 26.characteristic27.cheers 28.choir29.choke 30.chorus31.christian 32.circuit33.circulate 34.circumstance 35.civilian 36.clarify37.classify 38.clay39.click 40.clumsy41.coincidence 42.colleague 43.collection 44.collision45bine 46edy47mand 48mercial49mit 50mitment51munism 52munist53pass 54pensate55petence 56plex57ponent 58promise59pulsory 60.concrete 61.condemn 62.confidential 63.conflict 64.congratulate 65.conscience 66.consensus 67.conservation 68.conservative 69.considerate 70.consistent 71.constitution 72.construct 73.consultant 74.consume75.container 76.contradict 77.contradictory 78.contribute 79.controversial 80.conventional 81.convey 82.convince 83.correspond 84.corrupt85.counter 86.crash87.cream 88.crew89.criterion 90.crossing 91.cube 92.cubic93.cuisine 94.cure95.curious 96.currency 97.curriculum 98.customs1.dam2.dash3.database4.dawn5.deadline6.debate7.decade 8.declare9.decline 10.decoration 11.delay 12.delete13.deliberately 14.delicate 15.delight 16.deliver17.departure 18.deposit19.depth 20.desperate 21.destination 22.diagram23.digest 24.digital25.dignity 26.dilemma27.dimension 28.dioxide29.diploma 30.directory 31.disappoint 32.discourage 33.discrimination 34.disgusting35.distribute 36.disturbing 37.diverse 38.dizzy39.donate 40.dot41.download 42.draft43.drawback 44.due45.dull 46.dynamic47.dynasty1.eager2.ecology3.edition4.effect5.elect6.electronic7.elegant 8.emperor9.ending 10.endless11.enlarge 12.enquiry13.enterprise 14.entertainment 15.entry 16.equality17.equip 18.erupt19.evaluate 20.eventually 21.evident 22.evolution 23.expand 24.expense25.explicit 26.explore27.expose 28.extension1.fade2.faith3.fancy4.fantasy5.fasten6.feast7.federal 8.ferry9.fibre 10.fiction11.figure 12.finance13.fingernail 14.fireworks 15.flee 16.flexible17.float 18.fluency19.forbid 20.foresee21.forgetful 22.format23.former 24.fortnight 25.fortune 26.fountain27.fragile 28.fragrant29.framework 30.freezing31.friction 32.frontier33.fundamental 34.funeral35.furnished1.gallery2.gallon3.garment4.gather5.gay6.geometry7.glance 8.glare9.globe 10.goal11.goods en13.gradual 14.grand15.graph 16.grateful17.gravity 18.greet19.grill 20.grocer21.growth 22.guarantee1.haircut2.handful3.handy4.hardship5.harmony6.hatch7.headline 8.hearing9.helmet 10.herb11.holy 12.hook13.howl 14.hurricane15.hydrogen1.identification2.ignore3.immigration4.import5.impressrm7.initial 8.inspire9.institution 10.insure11.intend 12.interval13.irrigation1.jet2.jog3.jungle ck menterntterundry6.league7.liberty 8.liberation9.librarian 10.loaf11.loss 12.lounge1.maid2.manner3.maple4.marathon5.marble6.mask7.mass 8.matter9.mature 10.maximum11.means 12.meanwhile13.media 14.medium15.melon 16.memorial17.merchant 18.merciful19.merely 20.mess21.messy 22.microscope23.microwave 24.mineral25.minimum 26.minister27.ministry 28.mist29.mobile 30.monument31.mop 32.Moslem33.motivation 34.motor35.motto 36.mountainous37.mourn 38.musical 39.mustard 40.mutton1.nationwide2.navy3.negotiate4.noble5.novelist6.numb7.nutrition1.obtain2.obvious3.occupation4.occur5.offence6.offshore7.oilfield 8.opening9.opera 10.oppose11.optional 12.orbitan 14.origin15.outcome 16.outline 17.output 18.outspoken 19.outstanding 20.outward(s) 21.oval 22.overhead 23.overlook 24.overweight 25.owe 26.ownership1.packet2.paddle3.pan4.pancake5.panic6.paperwork7.parallel8.participate9.particular 10.partly11.passer-by 12.passive 13.patent 14.pause15.pedestrian 16.pension 17.perform 18.performance 19.performer 20.perfume 21.permanent 22.permit23.personnel 24.pest25.phenomenon 26.pianist 27.pile 28.pill29.pin 30.pint31.plot 32.plug33.poison 34.poisonous 35.pole 36.polish37.politician 38.politics 39.porriage 40.portable 41.porter 42.positive 43.possess 44.possession 45.poster 46.postpone 47.potential 48.pray49.prayer 50.precious 51.precise 52.predict 53.preference 54.pregnant 55.prejudice 56.premier57.preparation 58.prescription 59.presentation 60.preserve61.press 62.previous63.primitive 64.principle65.privilege 66.procedure67.profession 68.prohibit69.promote 70.psychology 71.pulse 72.punctual73.punctuation 74.purchase75.pure 76.pyramid1.quake2.qualification3.questionnaire4.queue5.quilt6.quit1.racial2.radiation3.radioactive4.radium5.rag6.rail7.rainbow 8.rainfall9.random 10.range11.rare 12.rate13.raw 14.ray15.razor 16.rebuild17.reception 18.receptionist 19.recipe 20.recommend21.recreation 22.rectangle23.refer 24.referee25.reference 26.reflect27.refresh 28.regardless 29.register 30.regulation 31.reject 32.relate33.relative 34.relay35.relevant 36.religion37.religious 38.remark39.represent 40.representative 41.reputation 42.request43.rescue 44.resemble45.reservation 46.reserve47.resign 48.resist49.restriction 50.revolution 51.rewind 52.rhyme53.rid 54.ridiculous 55.rigid 56.ripe57.ripen 58.rob59.roll 60.rooster61.root 62.rot63.rough 64.roundabout 65.routine 66.royal67.rugby 68.ruin1.sacred2.sacrifice3.salute4.saucer5.scan6.scar7.scare 8.sceptical 9.scold 10.scratch 11.sculpture 12.seagull 13.seaweed 14.section15.security 16.seek(sought, sought) 17.seize 18.semicircle19.seminar 20.separation21.session 22.settlement23.settler 24.severe25.shabby 26.sharpen27.sharpener 28.shaver29.shelter 30.shortly31.shot32.shrink (shrank/shrunk, shrunk/shrunken)33.shuttle 34.sideroad(sidewalk)35.sideway 36.sideways37.signature 38.significance39.sincerely 40.skateboard41.skip 42.skyscraper43.slavery 44.slice45.slide 46.slim47.slip 48.smog49.sneaker 50.sneeze51.sniff 52.sob53.socialism 54.socialist55.socket 56.solar57.sorrow 58.soul59.souvenir 60.sow (sowed, sown/sowed)61.spade 62.spear63.specialist 64.specific65.spin 66.spiritual67.split 68.sponsor69.spoonful 70.spray71.squeeze 72.stable73.staff 74.stain75.stainless 76.starvation77.starve 78.statesman/woman79.statistics 80.statue81.steady 82.steward83.stewardess 84.stoc king85.storage 86.stout87.straightforward 88.strait89.strength 90.strengthen91.stress 92.strike93.string 94.stubborn95.style 96.subjective97.submit 98.subscribe99.substitute 100.suck101.suffering 102.suite103.sunburnt 104.superb105.superior 106.supreme107.surplus 108.surgeon109.surround 110.surrival111.suspension 112.swap113.sear (swore, sworn) 114.swift 115.swing 116.switch117.sword 118.sympathy119.symphony 120.symptom121.systematic1.tablet2.tailor3.talent4.tank5.target6.tasteless7.tax 8.taxpayer9.teamwork 10.teapot11.tease 12.technical13.technique 14.telescope15.temple 16.temporary17.tend 18.tendency19.tense 20.tension21.tentative 22.terminal23.terrify 24.terror25.thankful 26.theft27.theme 28.theoretical29.theory 30.thermos31.thinking 32.thirst33.thorough 34.thrill35.thriller 36.throughout37.thunderstorm 38.tight39.tin 40.tip41.tire 42.tiresome43.tissue 44.tolerate45.tortoise 46.tough47.tourism 48.tournament49.track 50.tractor51.tram 52.transform53.transparent 54.trap55.treat 56.tremble57.trend 58.trial59.troublesome 60.trunk61.tube 62.tune63.turkey 64.turning65.twist 66.typhoon67.typical1.unable2.unbearable3.unbelievable4.uncertain5.uncomfortable6.unconditional7.unconscious 8.underline9.undertake 10.underwear11.unemployment 12.unfit13.unfortunate 14.union15.unique 16.unite17.universal 18.unlike19.unrest 20.unwilling21.update 22.upper23.upset 24.upward(s)25.urban 26.urge 27.urgent1.vacant2.vague3.vain4.valid5.valley6.variety7.version 8.vertical9.via 10.vice11.victim 12.videophone13.violate 14.violence15.violinist 16.virtue17.virus 18.visa19.vital 20.vivid21.voluntary 22.vote1.wag2.walnut3.ward4.warehouse5.warmth6.wax7.wedding 8.weed9.weekly 10.weep11.welfare 12.westward(s)13.widow 14.wipe15.withdraw 16.witness17.woollen 18.worn19.worthwhile 20.worthy21.wrestle 22.wrinkle1.yawn2.yell1.zip2.zipper3.zone4.zoom。
2019高考数学二轮专项练习精品--推理证明、复数、算法框图

2019高考数学二轮专项练习精品--推理证明、复数、算法框图【考纲解读】1.理解复数的基本概念;理解复数相等的充要条件;了解复数的代数表示法及其几何意义、2.会进行复数代数形式的四那么运算、② 了解复数代数形式的加、减运算的几何意义、3.了解合情推理的含义,能利用归纳和类比等进行简单的推理,了解合情推理在数学发现中的作用、4.了解演绎推理的重要性,掌握演绎推理的基本模式,并能运用它们进行一些简单推理、5.了解合情推理和演绎推理之间的联系和差异、6.了解直接证明的两种基本方法——分析法和综合法;了解分析法和综合法的思考过程、特点、7.了解间接证明的一种基本方法——反证法;了解反证法的思考过程、特点、9.了解算法的含义,了解算法的思想;理解程序框图的三种基本逻辑结构:顺序、条件分支、循环、10.理解几种基本算法语句——输入语句、输出语句、赋值语句、条件语句、循环语句的含义、【考点预测】今年高考对本部分知识的命题主要有以下两个方面: 1.复数与算法框图是历年高考的热点内容,考查方式主要在客观题中出现,一般只有一个选择或填空,考查复数的基础知识、算法框图以循环结构为主,难度较低。
2.推理证明也是高考的一个重点内容,考查方式多样,在客观题中主要考查合情推理中的归纳与类比,证明题目多以解答题的一个分支出现,常与数列、导数、不等式等知识结合,理科可能考查数学归纳法,难度较高,将继续强调考查逻辑推理、归纳等能力。
【要点梳理】1.合情推理与演绎推理:合情推理包括归纳与类比,明确演绎推理的三个模式〔大前提、小前提、结论〕.2.直接证明与间接证明:直接证明包括分析法(执果索因)与综合法(执因索果);常用的间接证明方法是反证法,反证法主要用于证明唯一性与否定性命题,其主要步骤是否定结论、证明、得出矛盾、肯定结论.3.(理科)数学归纳法:用来证明与自然数有关的等式、不等式、整除及几何等问题。
证明时,特别注意第二步,要弄清式子的构成规律,充分利用题目中的条件和假设,适当变形。
2019届高考化学二轮复习羟醛缩合专题卷

羟醛缩合专题1、仔细体会下列有机合成过程中碳骨架的构建及官能团的引入和转化,完成下题:已知两个醛分子在NaOH溶液作用下可以发生加成反应,生成一种羟基醛:肉桂醛F(分子式为C9H8O)在自然界存在于桂油中,是一种常用的植物调味油,工业上主要是按如下路线合成的:已知:反应⑤为羟醛缩合反应。
请回答:(1)肉桂醛F的结构简式为:。
E中含氧官能团的名称为。
(2)反应①~⑥中符合原子经济性的是。
(3)写出下列转化的化学方程式:②,③。
写出有关反应的类型:②⑥。
(4)符合下列要求的E物质的同分异构体有种(苯环上有两个取代基,其中有一个甲基在对位且属于酯类)。
2、尼龙是目前世界上产量最大、应用范围最广、性能比较优异的一种合成纤维。
以X为原料合成尼龙-66的流程如下:已知部分信息如下:I.Z的化学式为C6H10O4。
Ⅱ.X和浓溴水反应产生白色沉淀。
Ⅲ.某些醛与醛之间能发生羟醛缩合反应,例如:RCHO+CH3CHO RCH(OH)CH2CHO RCH=CHCHO+H2O请回答下列问题:(1)X的化学名称为___ ____。
W的结构简式为___ ____。
T的分子式为___ ______。
(2)反应②的条件为_____ _____。
(3)写出反应④的化学方程式______ _____。
反应⑤的类型为_____ ______。
(4)G是Z少一个碳原子的同系物,M是G的同分异构体。
M既能发生银镜反应和水解反应。
又能和碳酸氢钠反应产生气体,M的结构共有种,其中,在核磁共振氢谱上有3个峰的结构简式为___3、肉桂醛在食品、医药化工等方面都有应用。
(1)质谱分析肉桂醛分子的相对分子质量为132。
其分子中碳元素的质量分数为81.8%,其余为氢和氧。
分子中的碳原子数等于氢、氧原子数之和。
肉桂醛的分子式是。
(2)肉桂醛具有下列性质:请回答:①肉桂醛是苯的一取代物,核磁共振氢谱显示,苯环侧链上有三种不同化学环境的氢原子,其结构简式是。
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2019届高三二轮专题复习综合测试题(二十七)1书面表达假设你是健康俱乐部的一位志愿者,根据以下要点,写一篇100词左右的英语短文,帮助广大市民更好地了解和预防H1N1流感:(1)该流感已在许多国家爆发,病例每天持续增多;(2)该流感与其他季节性流感传播方式一样,通过咳嗽、喷嚏等在人群中传播;(3)建议:不随便当众咳嗽、打喷嚏,经常洗手,生病时在家休息……________________________________________________________________________2阅读填空__1__It is a very happy day for many boys and girls.Before the term ends in some schools,the children act a nativity(基督诞生) or “birth” play,showing how Jesus was born in a stable(马棚).On the twentyfou rth of December,all children are very excited.__2__The younger children think that Father Christmas will come down the chimney or fireplace,so they hang up a sock for him to put presents in.The greedy ones even hang up a pillowcase o r a sack to try to get more presents.__3__On Christmas morning,the children wake up very early.Some even turn on the light at two o’clock,and most of them are awake by six o’clock although it is not light in England for another hour or two at this time of the year.__4__At about on e o’clock in the afternoon,the Christmas dinner is brought in.__5__Children search in their Christmas pudding for new coins which are hidden in it.The rest of the day is full of games and eating until the happiest time of all Christmas holidays comes to an end.A.People are often busy going shoppi ng.B.The turkey or chicken is quickly eaten.C.Now the Chinese people also celebrate Christmas.D.Children look for their presents,and the young ones play while the dinner is prepared.E.Later that night,parents will put presents in the sock,and leave others at the side of the bed.F.Usually they are sent to bed early so that their parents can get the presents ready.G.Christmas Day falls on the twentyfifth of December.1.__________ 2.___________ 3.__________4.__________ 5.__________3短文改错After I finished the school this year,I began to look for a work.Now several month later,I still hadn’t found a job that I was interested.Last Sunday morning I received a phone call from a m an calling him Mr.Smith.He said to me on the phone,“I hear that you do very well in your studies.I may have a job for you.”I entered his office with a beaten heart.How I hoped that I will go through the jobhunting talk today and he would take me on like a lab assistant.But to my surprised,what he said was disappointing.He only needed a model.4阅读填空When are kids ready for friends,and how can parents help?__1__The roots of friendship reach far earlier into a child’s life.When babies like my daughter play,even alongside other children,they’re still playing by themselves.It’s called parallel play.By the time a child is two,she’ll be interested in taking turns and playing cooperatively.__2__This helps kids learn languages and other skills from each other.Children between the ages of three and six play directly with each other.Their games have rules.And friendship only gets more important from there on out,as kids gain the life skills that will lead to future ind ependence from their parents.__3__Weston’s three advice books for girls,list a few things parents can do to instill friendship skills.“They can be role models themselves by enjoying their own friends and showing that friendship is part of their own lives,”Weston says.“Small children need to learn to say thank you and w ave byebye,”Weston says.__4__ Weston’s point here is important:__5__They’re not focused on being liked as much as they actively like others.A.Kids who make friends easily take an interest in other people.B.If Sally jumped off a cliff,she will feel very sad.C.She’ll still do some similar playing,though.D.All the time,parents can help ready their children for successful friendships.E.It’s well known that kids in middle schools place a high value on friendship.F.And they can pass on some of those unwritten rules of friendship.G.Older kids need to learn about hurt feelings.1.__________ 2.___________ 3.__________4.__________ 5.__________5短文改错In order to realize his dream,Bill Gates,richest man in the w orld,gave up studying in Harvard University,that is the most famous in the world.He set up a company and researching the computer software.An old saying go,“Interest is the best teacher.”I quite agree with this idea.I began to be cr azy about English when I was a little girl.I got particular interested in foreign cultures or customs.To meet us curiosity,I read English stories every day.It seemed to bethe best “meal” of a day.As for a result ,I always did very well in English exam .Interest is the key of success .答案 1书面表达 参考范文As we know ,a growing outbreak of H1N1 flu has been sparked in many countries .An increasing number of cases are being reported every day .It’s thought that H1N1 flu spreads in the same way that regular seasonal influenza viruses do ,that is ,spreading from person to person ,mainly through the coughs and sneezes of people who are sick with the virus .Faced with this severe disease ,h ere are some everyday measures we should take to stay healthy .First ,cover your nose and mouth with a tissue when you cough or sneeze .Wash your hands often with soap and water ,especially after you cough or sneeze .Avoid touching your eyes ,nose or mouth .Germs spread that way .If you get sick ,stay home from work or school and limit contact with others to keep from infecting them .Finally ,H1N1 flu is not a terribly deadly disease ,which is curable .So ,don’t be nervous and just keep calm as usual . 2阅读填空1.G 2.F 3.E 4.D 5.B 3短文改错 After I finished the school this year ,I began to look for a work 或work job.Now several month monthslater ,I still hadn’t found a job that I was interested∧in .Last Sunday morning I received a phone call from a man calling him himselfMr .Smith .He said to me on the phone ,“I hear that you do didvery well in your studies .I may have a job for you .”I entered his office with a beaten beating heart .How I hoped that I will wouldgo through the jobh unting talk today and he would take me on like asa lab assistant .But to my surprised surprise,what he said was disappointing .He only needed a model . 4阅读填空1.E 2.C 3.D 4.G 5.A5短文改错In order to realize his dream ,Bill Gates ,∧therichest man in the world ,gave up studying in Harvard University ,that whichis the most famous in the world .He setup a company and re searching 或researching researchedthe computer software .An old saying go goes ,“I nterest is the best teacher .”I quite agree with this idea.I began to be crazy about English when I was a little girl .I got particular particularlyinterested in foreign cultures or and customs .To meet us mycuriosity ,I read English stories every day .It seemed to be the best “meal” of a day.As for a result ,I always did verywell in English exam exams .Interest is the key of tosuccess .。