下图为风成地貌成因示意图,读图完成18-19题风源地风力搬运:润甲跃移推移风成地貌成因示意图18-19题图18.下列地貌景观可能分布在甲地的是①②⑧④A.①B.②C.③D.④19.乙地易受风沙危害,人们常用沙障防沙,其原理是A.增加地表粗糙度,降低风速B.截留水分,利于植物成活C.增加降水,有利于植物生长D.吸收地下水,增加土壤湿度羚羊峡谷是世界上著名的狭缝型峡谷,位于美国亚利桑纳州的沙漠中的一处河道中,该河道在一年中长期处于干涸状态。完成20-21题羚羊峡谷地表(左图)内部地貌(右图)20-21题图20.形成羚羊峡谷的外力作用是A.风力侵蚀B.流水侵蚀C.流水溶蚀D.冰川侵蚀21.影响峡谷进一步增大、增深的因素有装中女地A.侵蚀速度B.基岩岩性C.搬运速度D.风化速度右图是学生地貌成因实验过程截图,完成22-23题22-23题图
编辑技术(如CRISPR/Cas)的问世源自人们在本世纪初对细菌抵御噬菌体的机理研究不少的细菌第一次被特定的噬茵体感染后,由细菌Cas2基因表达的Cs2核酸内切酶(蛋白质)便会随机低效切断入侵的噬菌体DNA双链,并将切下的DNA片段插入CRISPR位点,形成“免疫记忆”。当细菌再次遭遇同种噬菌体时,由CRISPR位点转录产生的crRNA便会将另一种核酸内切酶(如Cas9)准确带到入侵者DNA处,并将之切断,即“免疫杀灭”,过程如图所示。下列说法错误的是A.细茵体内发生图中的①过程,船要细茵提供场所、模板、原料、能量等B.图中②过程的机理类似于mRNA与DNA模板链的结合C.核酸内切酶Cas2通过识别特定序列的DNA,在特定位点将DNA切断D.细菌利用CRISPR/Cas分子装置剿灭入侵噬菌体的过程相当于高等动物的特异性免疫34.如图为甲、乙两种单基因遗传病的遗传家系图,甲病由等位基因A/a控制,乙病由等位基因B/b控制,其中一种病为伴性遗传,Ⅱs不携带致病基因。甲病在人群中的发病率为1625。不考虑基因突变和染色体畸变。下列叙述正确的是O正常男性、女性画D患甲病男性、女性目●患乙病男性、女性睏御患甲乙病男性、女性自自25A。人群中乙病患者男性多于女性B.I,的体细胞中基因A最多时为4个C.Ⅲ6带有来自I2的甲病致病基因的概率为16D.若Ⅲ与正常男性婚配,理论上生育一个只患甲病女孩的概率为1/20835.现建立“动物精原细胞(2n=4)有丝分裂和减数分裂过程”模型。1个精原细胞(假定DNA中的P元素都为32P,其它分子不含32P)在不含32P的培养液中正常培养,分裂为2个子细胞,其中1个子细胞发育为细胞①。细胞①和②的染色体组成如图所示,H(h)、R()是其中的两对基因,细胞②和③处于相同的分裂时期。下列叙述正确的是细胞@,细胞②4细胞⑤细胞⑥细胞③细胞分细胞①
趋势是8.在黑暗条件下,将分离得到的类囊体放在pH4的缓冲溶液中,使类萋体内外的pH相等,然后迅速转移到含有ADP和P的pH8的缓冲溶液中,结果检测到有ATP的生成。根据实验分析,下列叙述正确的是A.实验中溶液的H+均来自水的裂解B.黑暗条件下植物叶肉细胞中的叶绿体可产生ATPC.光照条件下植物细胞叶绿体中类囊体的腔内H+浓度较高D.若使类囊体的脂双层对H+的通透性增大,ATP生成量不变9。如图表示温度对野生型小麦光合作用与细胞呼吸的影响,已知其他条件相同且适宜,P点为两条曲线的交点。下列叙述3.753.53.5正确的是三3.53252.5P2.2521.751.5.1.510.75005101520253035温度℃照暗条件下一光照条件下A.P点时表示植物的光合速率等于呼吸速率B.在温度5C~30℃的区间,温度是限制光合作用的主要因素C.P点时若突然降低光照,短时间内三碳酸的合成速率升高D.若昼夜等长且不考虑温度的变化,25℃时该野生型小麦有机物积累速度最快
(2)等量蒸馏水(3)促进效果(或叶绿素含量与对照组的差值)(4)提高叶绿素含量有利于加强光合作用,促进CO2的吸收【解析】(1)叶肉细胞中的光合色素位于叶绿体的类囊体薄膜上,叶绿素主要吸收可见光中的红光和蓝紫光。叶绿体中色素的提取常用无水乙醇。(2)对照组一般喷施等量蒸馏水。(3)由于各实验组的促进效果比较显著,但在7到21d中促进效果无明显变化,说明纳米硒发挥作用的时间集中在喷施后的7d以内。(4)提高叶绿素含量有利于加强光合作用,促进CO2的吸收,有利于实现碳中和。16.(18分)果蝇的长翅受M和N两个显性基因控制,m基因控制残翅,n基因控制小翅,两对基因独立遗传。某研究小组选择纯合的残翅雌果蝇与小翅雄果蝇杂交。F1全为长翅果蝇,F1的雌雄果蝇随机交配,F2中长翅:小翅:残翅=9:3:4,且小翅果蝇均为雄性。回答下列问题:(1)根据题意分析,M、m基因位于染色体上。亲本雌雄果蝇的基因型分别为(2)根据F2中残翅果蝇的比例,推出当、m基因同时存在时果蝇表现为残翅,遗传学上把这种现象称为“隐性上位”。请以现有纯合残翅、小翅雌雄果绳为实验材料设计两代杂交实验验证m基因对基因具有“隐性上位”效应。(写出杂交方案和预期结果)杂交方案:预期结果:(3)若F1中的一只长翅雄果蝇不小心受到X射线的辐射,继续将其与多只F:长翅雌果蝇杂交,得到后代中残翅占1/2,出现这种结果的可能原因有(不考虑变异致死问题):①;②。在不再进行杂交实验的基础上,可以通过的方法判断具体是上述哪种原因。【答案】(I)常mmX XN、MMX"Y(2)让纯合残翅雄果蝇分别与纯合的小翅雌果蝇杂交得F1,各组合F,中的雌雄果蝇随机交配得F2,统计每个杂交组合F2的表现型及比例F2小翅:残翅=3:1或长翅:小翅:残翅=3:3:2(3)①基因突变②染色体结构变异(缺失)光学显微镜镜检【解析】(1)由题意可知,F2中长翅:小翅:残翅=9:3:4,且小翅果蝇均为雄性,由于基因控制小翅,因而N、n基因位于X染色体上,又因为两对基因独立遗传,所以M、m基因位于常染色体上。由于F1全为长翅果蝇,亲本又是纯合子,所以亲本中,残翅雌果蝇基因型为mmX X,小翅雄果蝇基因型为MMXY。(2)根据F2中残翅果蝇的比例,推测当、m基因同时存在时果蝇表现为残翅,遗传学上把这种现象称为“隐性上位”;为了证明m基因对n基因具有“隐性上位”效应,应该让纯合残翅雄果蝇(mmX"Y、mmXY)和纯合的小翅雌果蝇(MMX"X)杂交得F1(MmXX"、MmX"Y或MmX X"、MmXY),让各杂交组合F1中的雌雄果蝇随机交配得F2,若F2果蝇的表现型及比例为小翅:残翅=3:1或长翅:小翅:残翅=3:3:2,则可以说明m基因对n基因具有“隐性上位”效应。(3)由于亲本中的一只长翅雄果蝇受到X射线的辐射,将其与多只F1长翅雌果蝇杂交,得到后代中残翅果蝇占1/2,出现这种结果的可能原因有①该长翅雄果蝇发生基因突变;②该长翅雄果蝇发生染色体结构变异;以上两种变异分别属于基因突变和染色体变异,染色体变异可以在光学显微镜下观察到,而基因突变不能,故可通过光学显微镜来判断是哪种变异。¥染色体工程也叫染色体操作,是按照人们的需求对生物的染色体进行操作,添加、削弱或替代染色体,从而达到定向育种或创造人工新物种的目的。分析以下操作案例,回答下列问题:(1)我国科学家成功将酿酒酵母的16条染色体融合成为1条染色体,并将这条染色体移植到去核的酿酒酵母细胞中,得到仅含1条线型染色体的酿酒酵母菌株SY14,SY14能够存活且表现出相应的生命特性。这项研究开启了人类“设计、再造和重塑生命”的新纪元。获得SY14运用的可遗传变异原理是,SY14的染色体DNA上有(填“16”或“多于16”)个RNA聚合酶的结合位点。(2)珍珠贝(2)卵母细胞处于减数第二次分裂中期,精子入卵后,刺激卵母细胞继续完成第二次分裂并排出第二极体。若用细胞松弛素阻滞第二极体排出,可获得三倍体珍珠贝;若阻滞正常珍珠贝受精卵的第一次卵裂,·119.
can题型12attend高考完形填空题型my夹叙夹议文、说明文和议论文ndy atof the主题语境话题Mum人与自我核心素养典顺示例内在美比外在美更重要人与社会勤于反思,自我管理Passage 1fallen认真聆听的好处和重要性从我做起,问题解决Passage 2Were人与自然Passage 3they气候变化对森林的影响和谐共处,爱护家园aid toPassage 1For many years,I was so wrapped up in my6.A.tied upB.cut awayem toC.took turnsD.took painslongkids and my family that I ignored how I looked.B.turningas ifThe words“1_maintenance”described my7.A.sendingD.bringingthanapproachto beauty perfectlyC.succeeding8.A.casuallyB.temporarilyhen IIt wasn't until recently,when I had myC.brieflyD.improperlynold apicture taken for a work ID,that I 2 the9.A.teachingB.fooling"Youth Train"had left the station,and I was noC.decoratingD.enjoyingtheselonger on it.The woman in the ID picture looked10.A.lovesB.helps3 and definitely middle-aged.C.changesD.shapesFor a few days,I was a little 4 by the11.A.trickB.rolefact that I was no longer the sweet,young thing IC.jokeD.gamethought I was.For those few days,I tried a little12.A.reliefB.beliefharder to 5 younger and brighter.I 6C.powerD.beautywith my hair and added extra eyeliner.13.A.innerB.naturalI thought I was 7 in my seeking for aC.outsideD.moralyouthful glow until one of my new co-workers14.A.beatsB.meets8 asked me a question that told me I wasC.warmsD.restricts15.A.behaviouralB.genuine9only myself."I don't suppose you knowD.biologicalwhat beauty is,do you?"she asked.C.physicalThat simple question opened my weary eyes oncePassage 2and for all.My family 10 me not for my no-Do you listen?Do you really listen?Is therelonger-shiny hair but because the 11 I'm playing,more to listening than just hearing?that is my husband's wife and my kids'mom.Listening is,by far,one of the most importantSomeone once said that 12 is the first giftaspects of communication.So often,you paygiven and the first one taken away.I agree butattention to your way of speaking,your 1.only when it comes to 13 beauty.When ityour dialect,but neglect your ability to listen.comes to staying young,a mind-lift 14 a face-It is my 2 that people scream out orlift any day.The 15beauty,the stuff insidechange the intended purposes of much of whatthey hear.Too often,we consider listening thethat all of us have,lasts a lifetime.3 part of conversation,although it requires1.A.delicateB.constantour focus,purpose,and active participation.C.slightD.lowListening means to give ear to,to pay2.A.realizedB.recognizedattention to,to 4,to witness,to hear withC.acknowledgedD.recommendedthoughtful 5,or to understand.3.A.energeticB.cautiousThe most basic of all human needs is the needC.enthusiasticD.tiredto understand and to be understood.The only way4.A.confusedB.interestedto understand is to 6C.botheredD.desiredLearn to be an active listener.Give off positive5.A.actB.dressbody language.7 a willingness to socialize.AskC.behaveD.pretend《英语55上nacepLfmediapoimlmenml,atemtroeiieoe,
三、完形填空(每小题1分,共26分】A)请先阅读下面短文,掌捏其大意,然后从各小题所给的A、B、C、D四个选项中选出可以填人相应空白处的最佳选项,并在答题卡上将该项涂黑。Most of us fear failure ()However,without failure,progress would be29Every failure.even the 30 one,helps us learn to do things differently in thefuture.Pete Athans is a mountaineer.He has 31 the world's highest peak (seven times."Failure gives you a32 to think more carefully.When you 33again,you will choose a better way to deal with it,"Athans said.He believes the diffi-culties he met taught him that it was important to choose a less challenging 34 afterhis first climbing to Qomolangma.Learning from past mistakes and 35 changeshelped him to reach the top of the Qomolangma 36.Failure also 37 us that things can go wrong-sometimes with terrible 38Gerlinde Kaltenbrunner is the first woman to get to all 14 of the world's 8,000-meterpeaks without using extra oxygen.In 2007,while climbing in Nepal,39 met anavalanche(雪).Luckily,she survived(¥存),40 two nearby Spanish climbersdied.The experience taught Kaltenbrunner that no matter how well a person prepared,41 things can still happen.The event of that day troubled her deeply.Kaltenbrunner42 to learn from the experience and move on."I 43 I couldn't stop bad thingsfromn happening,"she says,"but I couldn't stop climbing-this is my life."29.A.bornB.relaxedC.impossibleD.successful30.A.worstB.cleverestC.luckiestD.easiest31.A.soldB.createdC.reachedD.rode32.A.businessB.sentenceC.partnerD.chance33.A.give upB.tell jokesC.take risksD.cut down34.A.hauseB.gardenC.roadD.restrcom35.A.makingB.gettingC.spreadingD.repeating36.A..correctlyB.simplyC.politelyD.successfully37.A.remembersB.tellsC.raisesD.discovers38.A.resultsB.plansC.directionsD.addresses39.A.sheB.heC.ID.you40.AandB.证C.butD.so41.A.activeB.goodC.poorD.bad42.A.rushedB.increasedC.dependedD.decided43.A.warnB.knowC.hopeD.holdB)请先阅读下面短文,擎其大意,然后用方框中所给词的适当形式填空,并将答案镇写到答题卡的相应位置。每个词限用一次。fascinating bit work inside different its but makerestroomcreatetowerWhat comes to your mind when you hear the name Big Ben?Most people think ofthe 44 clock tower in London.That's not quite right,though.Big Ben is actually thename of the big bell (45 the tower.Big Ben is the biggest of the tower's fivebells.A hammer (in the clock tower will hit the bell on the hour and 46 itring.On the quarter hours,the same thing bappens to the four smaller bells around BigBen.It 47 a piece of wonderful music.The bell first rang in July,1859.However,that September a crackappeared on Big Ben.After that it has been quiet for four years.Engineers solved theproblem by iurning Big Ben a 48.That made the hammer hit it in a(n)49place.The crack is still there today.【江西省023九年级第一次动段适应性评估·英语第3页(共8页)】【R一PGZX A一JX】。小L-G以XA一IYn扫描全能王创建百草
30.What can be inferred about United Airlines?A.It promises to use bio-fuel in 2050.C.It stopped carbon emissions in 2016.B.It has a pioneering spirit.31.What might be the best title for the text?D.It shows no interest in electric air taxis.A.The Promising Future of Air Travel Is Seen NowB.More Companies Are Developing Green TechnologiesC.Electric Air Taxis Will Make Getting to the Airport EasyD.Electric Air Taxis Will Be Put Into Wide Use in the FutureDEdible()citiesare becoming inresngy popular around thewrd.the ity of AndernachGermany,who livesr happenstobe in thetw of peopeiseuraged to pick and takewhatever they want from the fruiting trees and bushes in the town terTh,which sitin the RhineRiver Valley,ismog the growing nmber of be citeacros the globe Since thestarof the pogram2010.there ismore than enough produce to go around everyyear regardess of whether sm grabsinepear or a bag full of potatoes."People here are very proud when talking to others about our edible ityshared Bettina Schneider,cityteam coordinator(for the Edible Cities Network in Andernach."The land that was changed into fruitinggardens and orchards()in Andernach was previously overgrown.But today the town is covered with peach,almond and pear trees."Andernach's public gardens and orchards have also inspired other cities in Germany and throughout theEuropean Union tofollow suit.Today,the Edible Cities Networka group of about 150 cities worldwide with fruittrees and vegetable gardens in public places for anyone to access free of chargeis funded by the European Commission."Public green natural spaces in cities are incredibly valuable,and even more so as temperatures rise andcities become more crowded,"said Ina Saumel,a principal investigator for the Edible Cities Network.Sheexplained that Edible Cities Network's goal is to encourage people to get involved in their urban parks instead ofonly thinking of them as passive places.Many cities in the United States have also started similar projects.There are public lands from Seattle toNorth Carolina where people are welcome to pick and take from fruiting trees and bushes.32.What can people do in an edible city?A.Grow fruit trees and potatoes anywhere.B.Pick agricultural products on public land.C.Go to any restaurant to enjoy food for free.D.Make a fortune by selling apples and peaches33.What is Andernach residents'attitude toward their edible city?A.Favorable.B.Intolerant.34.What is the goal of the Edible Cities Network?C.Doubtful.D.Unclear.A.To enable people to access fresh food.C.To stop people from living a busy life.B.To make the cities cleaner and nicer.35.What is most likely to be discussed following the last paragraph?D.To involve people in their urban parks.A.Some edible cities in America.C.Evaluations about edible cities.B.Predictions about edible cities.D.People's dependence on edible cities.【高二英语第5页(共8页)】
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M:Do you like volleyball?W:Yes,I play volleyball with friends.I also watch volleyball games on TV.M:Do you know the volleyball starYuan Xinyue?W:Yes,she plays volleyball well.Tony,do you like volleyball?M:Yes.I don't play it but I watchvolleyball games.W:Do you like Yuan Xinyue?M:Yes,she is great.请听第4段对话,回答第13至第15小题。M:Gina,do you like ping-pong?W:Yes,I do.I play ping-pong afterschool.M:Do you play it with your classmates?W:No,I play it with my cousin.Weare in the same school.M:Is your cousin Mike?W:Yes,he is a soccer star in our school.(下转A1、A4版中缝)