高三师大附中
湖南师大附中2025届高三月考数学(三)试卷及答案
大联考湖南师大附中2025届高三月考试卷(三)数学时量:120分钟满分:150分一、选择题:本题共8小题,每小题5分,共40分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.集合{}0,1,2,3的真子集个数是()A .7B .8C .15D .162.“11x -<”是“240x x -<”的()A .充分不必要条件B .必要不充分条件C .充要条件D .既不充分也不必要条件3.已知角α的终边上有一点P 的坐标是)4,3(a a ,其中0a ≠,则sin2α=()A .43B .725C .2425D .2425-4.设向量a,b 满足+=-=a b a b ,则⋅a b 等于()A .B .2C .5D .85.若无论θ为何值,直线sin cos 10y x θθ⋅+⋅+=与双曲线2215x y m -=总有公共点,则m的取值范围是()A.1m ≥B .01m <≤C .05m <<,且1m ≠D .1m ≥,且5m ≠6.已知函数()2f x 的图象关于原点对称,且满足()()130f x f x ++-=,且当()2,4x ∈时,()()12log 2f x x m =--+,若()()2025112f f -=-,则m 等于()A .13B .23C .23-D .13-7.已知正三棱台111ABC A B C -所有顶点均在半径为5的半球球面上,且AB =11A B =()A .1B .4C .7D .1或78.北宋数学家沈括博学多才、善于观察.据说有一天,他走进一家酒馆,看见一层层垒起的酒坛,不禁想到:“怎么求这些酒坛的总数呢?”经过反复尝试,沈括提出对于上底有ab 个,下底有cd 个,共n 层的堆积物(如图所示),可以用公式()()()2266n nS b d a b d c c a ⎡⎤=++++-⎣⎦求出物体的总数,这就是所谓的“隙积术”,相当于求数列()()(),11,2ab a b a +++.()()()2,,11b a n b n cd ++-+-= 的和.若由小球堆成的上述垛积共7层,小球总个数为238,则该垛积最上层的小球个数为()A .2B .6C .12D .20二、选择题:本题共3小题,每小题6分,共18分.在每小题给出的选项中,有多项符合题目要求.全部选对的得6分,部分选对的得部分分,有选错的得0分.9.若()202422024012202412x a a x a x a x +=++++ ,则下列正确的是()A .02024a =B .20240120243a a a +++= C .012320241a a a a a -+-++= D .12320242320242024a a a a -+--=- 10.对于函数()sin cos f x x x =+和()sin cos 22g x x x ππ⎛⎫⎛⎫=--- ⎪ ⎪⎝⎭⎝⎭,下列说法中正确的有()A .()f x 与()g x 有相同的零点B .()f x 与()g x 有相同的最大值点C .()f x 与()g x 有相同的最小正周期D .()f x 与()g x 的图象有相同的对称轴11.过点()0,2P 的直线与抛物线2:4C x y =交于()()1122,,,A x y B x y 两点,抛物线C 在点A 处的切线与直线2y =-交于点N ,作NM AP ⊥交AB 于点M ,则()A .5OA OB ⋅=-B .直线MN 恒过定点C .点M 的轨迹方程是()()22110y x y -+=≠D .AB MN选择题答题卡题号1234567891011得分答案三、填空题:本题共3小题,每小题5分,共15分.12.已知复数12,z z 的模长为1,且21111z z +=,则12z z +=_____.13.在ABC 中,角,,A B C 所对的边分别为,,a b c 已知5,4a b ==,()31cos 32A B -=,则sin B =_____.14.若正实数1x 是函数()2e e x f x x x =--的一个零点,2x 是函数()g x =()()3e ln 1e x x ---的一个大于e 的零点,则()122e ex x -的值为_____.四、解答题:本题共5小题,共77分.解答应写出文字说明、证明过程或演算步骤.15.(本小题满分13分)现有某企业计划用10年的时间进行技术革新,有两种方案:贷款利润A 方案一次性向银行贷款10万元第1年利润1万元,以后每年比前一年增加25%的利润B 方案每年初向银行贷款1万元第1年利润1万元,以后每年比前一年增加利润3000元两方案使用期都是10年,贷款10年后一次性还本付息(年末结息),若银行贷款利息均按10%的复利计算.(1)计算10年后,A 方案到期一次性需要付银行多少本息?(2)试比较A B 、两方案的优劣.(结果精确到万元,参考数据:10101.1 2.594,1.259.313≈≈)如图,四棱锥P ABCD -中,底面ABCD 为等腰梯形,22AD AB BC ==2=.点P 在底面的射影点Q 在线段AC 上.(1)在图中过A 作平面PCD 的垂线段,H 为垂足,并给出严谨的作图过程;(2)若2PA PD ==.求平面PAB 与平面PCD 所成锐二面角的余弦值.已知函数()()e sin cos ,x f x x x f x =+-'为()f x 的导数.(1)证明:当0x ≥时,()2f x '≥;(2)设()()21g x f x x =--,证明:()g x 有且仅有2个零点.在平面直角坐标系xOy 中,已知椭圆()2222:10x y C a b a b +=>>的两个焦点为12,F F P、为椭圆C 上一动点,设12F PF ∠θ=,当23πθ=时,12F PF ∆.(1)求椭圆C 的标准方程.(2)过点()0,2B 的直线l 与椭圆交于不同的两点(M N M 、在,B N 之间),若Q 为椭圆C上一点,且OQ OM ON =+,①求OBM OBNSS ∆∆的取值范围;②求四边形OMQN 的面积.飞行棋是大家熟悉的棋类游戏,玩家通过投掷骰子来决定飞机起飞与飞行的步数.当且仅当玩家投掷出6点时,飞机才能起飞.并且掷得6点的游戏者可以连续投掷骰子,直至显示点数不是6点.飞机起飞后,飞行步数即骰子向上的点数.(1)求甲玩家第一轮投掷中,投掷次数X 的均值()()1(k E X kP k ∞===∑()1lim n n k kP k ∞→=⎫⎛⎫⎪ ⎪⎝⎭⎭∑;(2)对于两个离散型随机变量,ξη,我们将其可能出现的结果作为一个有序数对,类似于离散型随机变量的分布列,我们可以用如下表格来表示这个有序数对的概率分布:(记()()()()()(1211,,mni i i j j j i j i p x p x p x y p y p y p x ξη========∑∑,)j y .)ξη1x 2x ...n X 1y ()11,p x y ()21,p x y ...()1,n p x y ()21p y 2y ()12,p x y ()22,p x y ...()2,n p x y ()22p y ...⋯⋯...⋯...my ()1,m p x y ()2,m p x y ...(),n m p x y ()2m p y ()11p x ()12p x ...()1n p x 1若已知i x ξ=,则事件{}j y η=的条件概率为{}j i P y x ηξ===∣{}{}()()1,,j i i j i i P y x p x y P x p x ηξξ====.可以发现i x ηξ=∣依然是一个随机变量,可以对其求期望{}{}()111mi j j i j i E x y P y x p x ηξηξ===⋅===∑∣∣.()1,mj i j j y p x y =∑(i )上述期望依旧是一个随机变量(ξ取值不同时,期望也不同),不妨记为{}E ηξ∣,求{}E E ηξ⎡⎤⎣⎦∣;(ii )若修改游戏规则,需连续掷出两次6点飞机才能起飞,记0ξ=表示“甲第一次未能掷出6点”,1ξ=表示“甲第一次掷出6点且第二次未能掷出6点”,2ξ=表示“甲第一次第二次均掷出6点”,η为甲首次使得飞机起飞时抛掷骰子的次数,求E η.炎德・英才大联考湖南师大附中2025届高三月考试卷(三)数学参考答案题号1234567891011答案C A C B B D A B BC ACD BC一、选择题:本题共8小题,每小题5分,共40分.在每小题给出的四个选项中,只有一项是符合题目要求的.1.C 【解析】集合{}0,1,2,3共有42115-=(个)真子集.故选C .2.A 【解析】解不等式240x x -<,得04x <<,解不等式11x -<,得02x <<,所以“11x -<”是“240x x -<”的充分不必要条件.3.C 【解析】根据三角函数的概念,2442sin cos 2tan 24tan ,sin23311tan 25y a x a αααααα======+,故选C .4.B 【解析】()()()22111911244⎡⎤⋅=+--=-=⎣⎦a b a b a b .5.B 【解析】易得原点到直线的距离1d ==,故直线为单位圆的切线,由于直线与双曲线2215x y m -=总有公共点,所以点()1,0±必在双曲线内或双曲线上,则01m <≤.6.D 【解析】依题意函数()f x 的图象关于原点对称,所以()f x 为奇函数,因为()()()133f x f x f x +=--=-,故函数()f x 的周期为4,则()()20251f f =,而()()11f f -=-,所以由()()2025112f f -=-可得()113f =,而()()13f f =-,所以()121log 323m --=,解得13m =-.7.A 【解析】上下底面所在外接圆的半径分别为123,4r r ==,过点112,,,A A O O 的截面如图:22222121534,543,1OO OO h OO OO =-==-∴=-=,故选A .8.B 【解析】由题意,得6,6c a d b =+=+,则由()()()772223866b d a b d c c a ⎡⎤++++-=⎣⎦得()()7[26212(6b b a b b a ++++++6)]()762386a a ++-=,整理得()321ab a b ++=,所以773aba b +=-<.因为,a b 为正整数,所以3ab =或6.因此有6,3a b ab +=⎧⎨=⎩或5,6.a b ab +=⎧⎨=⎩而63a b ab +=⎧⎨=⎩无整数解,因此6ab =.故选B .二、选择题:本题共3小题,每小题6分,共18分.在每小题给出的选项中,有多项符合题目要求.全部选对的得6分,部分选对的得部分分,有选错的得0分.9.BC 【解析】对于A :令0x =,则01a =,故A 错误;对于B :令1x =,则20240120243a a a +++= ,故B 正确;对于C :令1x =-,则012320241a a a a a -+-++= ,故C 正确;对于D ,由()202422024012202412x a a x a x a x +=++++ ,两边同时求导得()20232202312320242024212232024x a a x a x a x ⨯⨯+=++++ ,令1x =-,则12320242320244048a a a a -++-=- ,故D 错误.故选BC .10.ACD 【解析】()()32sin ,2sin 2sin 4244f x x g x x x ππππ⎛⎫⎛⎫⎛⎫=+=--=- ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭.令()0f x =,则,4x k k ππ=-+∈Z ;令()0g x =,则3,4x k k ππ=+∈Z ,两个函数的零点是相同的,故选项A 正确.()f x 的最大值点是()2,,4k k g x ππ+∈Z 的最大值点是32,4k k ππ-+∈Z ,两个函数的最大值虽然是相同的,但最大值点是不同的,故选项B 不正确.由正弦型函数的最小正周期为2πω可知()f x 与()g x 有相同的最小正周期2π,故选项C 正确.曲线()y f x =的对称轴为,4x k k ππ=+∈Z ,曲线()y g x =的对称轴为5,4x k k ππ=+∈Z ,两个函数的图象有相同的对称轴,故选项D 正确.故选ACD.设直线AB 的方程为2y tx =+(斜率显然存在),221212,,,44x x A x B x ⎛⎫⎛⎫ ⎪ ⎪⎝⎭⎝⎭,联立22,4,y tx x y =+⎧⎨=⎩消去x 整理可得2480x tx --=,由韦达定理得12124,8x x t x x +==-,A .22121212124,84444x x y y OA OB x x y y =⋅=⋅=+=-+=- ,故A 错误;B .抛物线C 在点A 处的切线为21124x x x y ⎛⎫=+ ⎪⎝⎭,当2y =-时,11121244282222x x x x x t x x =-=-=+=-,即()2,2N t -,直线MN 的方程为()122y x t t +=--,整理得xy t=-,直线MN 恒过定点(0,0),故B 正确;C .由选项B 可得点M 在以线段OP 为直径的圆上,点O 除外,故点M 的轨迹方程是()()22110y x y -+=≠,故C 正确;D.222t MN +==,AB =则()2221412222t AB MNt +⎫==+,,m m =≥则12ABm MN m ⎛⎫=- ⎪⎝⎭,设()1,f m m m m =-≥,则()2110f m m=+>',当m ≥,()f m 单调递增,所以()min f m f==,故D 错误.故选BC .三、填空题:本题共3小题,每小题5分,共15分.12.1【解析】设()()12i ,,i ,z a b a b z c d c d =+∈=+∈R R ,因为21111z z +=,所以2122111z zz z z z +=.因为11221,1z z z z ==,所以121z z +=,所以()()i i i 1a b c d a c b d -+-=+-+=,所以1,0a c b d +=+=,所以()()12i 1z z a c b d +=+++=.13.74【解析】在ABC 中,因为a b >,所以A B >.又()31cos 32A B -=,可知A B-为锐角且()sin 32A B -=.由正弦定理,sin 5sin 4A aB b ==,于是()()()5sin sin sin sin cos cos sin 4B A A B B A B B A B B ⎡⎤==-+=-+-⎣⎦.将()cos A B -及()sin AB -的值代入可得3sin B B =,平方得2229sin 7cos 77sin B B B ==-,故7sin 4B =.14.e 【解析】依题意得,1211e e 0x x x --=,即()()12311122e e ,0,e ln 1e 0x x x x x x -=>---=,即()()3222e ln 1e ,e x x x --=>,()()()131122e e e e ln 1x x x x x ∴-==--,()()()()()()211ln 111112212e e ln 1e ,e e ln 1e e x x x x x x x x -+++⎡⎤∴-=--∴-=--⎣⎦,又22ln 1,ln 10,x x >->∴ 同构函数:()()1e e ,0x F x x x +=->,则()()312ln 1e F x F x =-=,又()()111e e e e e 1e x x x x F x x x +++=-+=-+',00,e e 1,e 10x x x >∴>=∴-> ,又()()1e 0,0,x x F x F x +>'>∴单调递增,()()()3122212222e ln 1e e ln 1,e e e ex x x x x x ---∴=-∴===.四、解答题:本题共5小题,共77分.解答应写出文字说明、证明过程或演算步骤.15.【解析】(1)A 方案到期时银行贷款本息为()1010110%26⨯+≈(万元).……(3分)(2)A 方案10年共获利:()()1091.2511125%125%33.31.251-+++++=≈- (万元),……(5分)到期时银行贷款本息为()1010110%25.9⨯+≈(万元),所以A 方案净收益为:33.325.97-≈(万元),……(7分)B 方案10年共获利:()()101010.31 1.3190.310123.52⨯-⨯++++⨯=⨯+= (万元),……(9分)到期时银行贷款本息为()()()()101091.11.11110%110%110%17.51.11-++++++=≈- (万元),……(11分)所以B 方案净收益为:23.517.56-≈(万元),……(12分)由比较知A 方案比B 方案更优.……(13分)16.【解析】(1)连接PQ ,有PQ ⊥平面ABCD ,所以PQ CD ⊥.在ACD 中,2222cos 54cos AC AD CD AD CD ADC ADC ∠∠=+-⋅⋅=-.同理,在ABC 中,有222cos AC ABC ∠=-.又因为180ABC ADC ∠∠+= ,所以()1cos ,0,1802ADC ADC ∠∠=∈ ,所以60ADC ∠= ,3AC =故222AC CD AD +=,即AC CD ⊥.又因为,,PQ AC Q PQ AC ⋂=⊂平面PAC ,所以CD ⊥平面PAC .CD ⊂平面PCD ,所以平面PCD ⊥平面PAC .……(5分)过A 作AH 垂直PC 于点H ,因为平面PCD ⊥平面PAC ,平面PCD ⋂平面PAC PC =,且AH ⊂平面PAC ,有AH ⊥平面PCD .……(7分)(2)依题意,22AQ PA PQ DQ =-=.故Q 为,AC BD 的交点,且2AQ ADCQ BC==.所以2222326,333AQ AC PQ PA AQ ===-.过C 作直线PQ 的平行线l ,则,,l AC CD 两两垂直,以C 为原点建立如图所示空间直角坐标系,则:()()36131,0,0,0,,0,3,0,,,03322D P A B ⎛⎫⎛⎫- ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭,所以()326232613261,0,0,0,,0,,,,,3333263CD CP AP BP ⎛⎛⎛===-=- ⎪ ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭ .设平面PCD 的法向量为(),,x y z =m ,则()0,0,3CD x CP y ⎧⋅==⎪⎨⋅=+=⎪⎩m m取()0,=-m .同理,平面PAB的法向量)1=-n ,1cos<,3⋅>==m n m n m n ……(14分)故所求锐二面角余弦值为13.……(15分)17.【解析】(1)由()e cos sin x f x x x =++',设()e cos sin x h x x x =++,则()e sin cos x h x x x '=-+,当0x ≥时,设()()e 1,sin x p x x q x x x =--=-,()()e 10,1cos 0x p x q x x ''=-≥=-≥ ,()p x ∴和()q x 在[)0,∞+上单调递增,()()()()00,00p x p q x q ∴≥=≥=,∴当0x ≥时,e 1,sin x x x x ≥+≥,则()()()e sin cos 1sin cos sin 1cos 0x h x x x x x x x x x '=-+≥+-+=-++≥,∴函数()e cos sin x h x x x =++在[)0,∞+上单调递增,()()02h x h ∴≥=,即当0x ≥时,()2f x '≥.……(7分)(2)由已知得()e sin cos 21x g x x x x =+---.①当0x ≥时,()()()e cos sin 220,x g x x x f x g x ≥''=++-=-∴ 在[)0,∞+上单调递增,又()()010,e 20g g πππ=-<=->∴ 由零点存在定理可知,()g x 在[)0,∞+上仅有一个零点.……(10分)②当0x <时,设()()2sin cos 0e x x xm x x --=<,则()()2sin 10exx m x '-=≤,()m x ∴在(),0∞-上单调递减,()()01m x m ∴>=,()e cos sin 20,e cos sin 20x x x x g x x x '∴++-<∴=++-<,()g x ∴在(),0∞-上单调递减,又()()010,e 20g g πππ-=-<-=+> ,∴由零点存在定理可知()g x 在(),0∞-上仅有一个零点,综上所述,()g x 有且仅有2个零点.……(15分)18.【解析】(1)设()00,,P x y c 为椭圆C 的焦半距,12122F PF p S c y ∆=⋅⋅,00y b <≤ ,当0y b =时,12F PF S 最大,此时()0,P b 或()0,P b -,不妨设()0,P b ,当23πθ=时,得213OPF OPF π∠∠==,所以c =,又因为12F PF S bc ∆==,所以1,b c ==从而2,a =∴椭圆C 的标准方程为2214x y +=.……(3分)(2)由题意,直线l 的斜率显然存在.设()()1122: 2.,,,l y kx M x y N x y =+.……(4分)1112OBM S OB x x ∆∴=⋅=,同理,2OBN S x ∆=.12OBM OBN S xS x ∆∆∴= (6))联立()22222,141612044y kx k x kx x y =+⎧⇒+++=⎨+=⎩,……(8分)()()()22223164121416430,4k k k k ∴∆=-⨯⨯+=->∴>.……(9分)又121212221612,0,,1414k x x x x x x k k-+==>∴++ 同号.()()2222122121212216641421231414k x x x x k k x x x x kk-⎛⎫ ⎪++⎝⎭∴===+++.()22212122364641616,4,,42143331434x x k k x x k k ⎛⎫>∴=∈∴<++< ⎪⎛⎫+⎝⎭+ ⎪⎝⎭ .令()120x x λλ=≠,则116423λλ<++<,解得()()11,11,3,,11,333OBM OBN S S λ∆∆⎛⎫⎛⎫∈∴∈ ⎪ ⎪⎝⎭⎝⎭ .……(12分)(3)()1212,,OQ OM ON Q x x y y =+∴++.且四边形OMQN 为平行四边形.由(2)知()12121222164,41414k x x y y k x x k k-+=∴+=++=++,22164,1414kQ k k -⎛⎫∴ ⎪++⎝⎭.而Q 在椭圆C 上,2222164441414k k k -⎛⎫⎛⎫∴+⨯= ⎪ ⎪++⎝⎭⎝⎭.化简得2154k =.……(14分)∴线段161219357115224MN ==⋅+,……(15分)O到直线MN的距离d == (16))OMQN 574S MN d ∴=⋅=四边形.……(17分)19.【解析】(1)()115,1,2,3,66k P X k k -⎛⎫==⨯= ⎪⎝⎭ ,所以()()215111,1,2,3,,5126666nk n k k k P X k k kP k n =⎛⎫⋅====⨯+⨯+⨯ ⎪⎝⎭∑ ,记211112666n n S n =⨯+⨯++⨯ ,则2311111126666n n S n +=⨯+⨯++⨯ .作差得:1211111511111111661666666556616nn n n n n n S n n ++⎛⎫- ⎪⎛⎫⎛⎫⎝⎭=+++-⨯=-⨯=-+ ⎪⎪⎝⎭⎝⎭- ,所以()16111661,555566556n nn n n k n S kP k S n =⎡⎤⎛⎫⎛⎫⎛⎫⎛⎫=⋅-+==-+⎢⎥ ⎪⎪ ⎪⎪⎝⎭⎝⎭⎝⎭⎝⎭⎢⎥⎣⎦∑.故()()()116616lim lim 5565nn n n k k E X kP k kP k n ∞∞∞→→==⎡⎤⎛⎫⎛⎫⎛⎫===-+=⎢⎥ ⎪ ⎪⎪⎝⎭⎝⎭⎝⎭⎢⎥⎣⎦∑∑.……(6分)(2)(i ){}E ηξ∣所有可能的取值为:{},1,2,,i E x i n ηξ== ∣.且对应的概率{}{}()()()1,1,2,,i i i p E E x p x p x i n ηξηξξ====== ∣∣.所以{}{}()()()()()111111111,,,nnmn m i i j i j i j i j i i j i j i E E E x p x y p x y p x y p x y p x ηξηξ=====⎛⎫⎡⎤==⋅=⋅= ⎪⎣⎦ ⎪⎝⎭∑∑∑∑∑∣∣又()()()()21111111,,,nmmnmn mj i j j i j j i j j j i j j i j i j y p x y y p x y y p x y y p y E η=======⎛⎫⋅=⋅==⋅= ⎪⎝⎭∑∑∑∑∑∑∑,所以{}E E E ηξη⎡⎤=⎣⎦∣.……(12分)(ii ){}{}{}12355101,;12,;22,63636E E p E E p E p ηξηηξηη==+===+====∣∣,{}()()5513542122636363636E E E E E ηηξηηη⎡⎤==++++⨯=+⎣⎦∣,故42E η=.……(17分)。
2025届湖南省湖南师大附中高三第二次调研语文试卷含解析
2025届湖南省湖南师大附中高三第二次调研语文试卷注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2．回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑，如需改动，用橡皮擦干净后，再选涂其它答案标号。
回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
3．考试结束后，将本试卷和答题卡一并交回。
1、阅读下面的文字，完成下面小题。
当前中国所发生的历史性巨变，实实在在写在祖国的山河大地上。
一个突出的事实是：作为国家地情资料最权威也最为完备、最具连续性的地方志，即便最新编撰，也已经明显跟不上新时代巨变的节奏。
在这样的形势下，文学反映现实并及时记录“地方性知识”的整体性、结构性、历史性变迁，就变得非常紧迫、必要甚至时尚起来。
这样的作品既尊崇以文学方法反映新时代巨变的美学规律，又是对方志记录地方舆地、物产、风俗、传说等传统的继承和发扬，可称之为“新方志文学”。
对“地方性知识”整体性、结构性、历史性变迁的文学性、时代性、连续性、史志性表达，是我对“新方志文学”的一个基本界定。
这里的“地方”当然不是地方志所指的狭义的行政区划，而是包括特定的行业或领城在内，如教育、科技、航天等。
另外，面对新时代的历史巨变，新方志文学所采用的，也并非狭义的纪实手法，而是包含了叙事、抒情、政论、新闻、口述实录等多种方法，而且文体也比较开放，可包括写新时代巨变的诗歌、小说和散文，并不单指纪实文学或报告文学。
时代变革一直是中国当代文学最重要的审美品格。
当前，推动文学创作关注现实、反映新时代历史巨变的呼声更为强烈。
《人民文学》杂志2017年第12期开始推出的《新时代纪事》栏目、就在这方面立起一面旗帜。
栏目不仅发表报告文学类的纪实性作品，也发表长篇小说。
作为全国脱贫攻坚的主战场，贵州2018年出版的一套20部“舍不得乡愁离开胸膛”系列长诗，分别以少数民族村寨及特色小镇、古镇的历史变迁为题材，以诗配画的方式讲述贵州儿女脱贫致富奔小康的精彩故事，也颇具新方志文学的品格。
2024年湖南师大附中高三三模物理试题
2024年湖南师大附中高三三模物理试题一、单选题：本题共7小题，每小题4分，共28分 (共7题)第(1)题下列关于教科书上的四副插图，说法正确的是（ ）A．图甲为静电除尘装置的示意图，带负电的尘埃被收集在线状电离器B上B．图乙为给汽车加油前要触摸一下的静电释放器，其目的是导走加油枪上的静电C．图丙中摇动起电机，烟雾缭绕的塑料瓶顿时清澈透明，其工作原理为静电吸附D．图丁的燃气灶中安装了电子点火器，点火应用了电磁感应原理第(2)题如图为某款手机防窥膜的原理图，在透明介质中等距排列有相互平行的吸光屏障，屏障的高度与防窥膜厚度均为x，相邻屏障的间距为L，方向与屏幕垂直，透明介质的折射率为，防窥膜的可视角度通常是以垂直于屏幕的法线为基线，左右各有一定的可视角度，可视角度越小，防窥效果越好，当可视角度时，防窥膜厚度（ ）A．B．C．L D．2L第(3)题如图，在点电荷Q产生的电场中，将两个带正电的试探电荷分别置于A、B两点，虚线为等势线．取无穷远处为零电势点，若将移动到无穷远的过程中外力克服电场力做的功相等，则下列说法正确的是A．A点电势大于B点电势B．A、B两点的电场强度相等C．的电荷量小于的电荷量D．在A点的电势能小于在B点的电势能第(4)题如图所示是一列简谐横波在某时刻的波形图，已知图中b位置的质点起振比a位置的质点晚0.5s，b和c之间的距离是5m，则此列波的波长和频率应分别为（）A．5m，1Hz B．10m， 2Hz C．5m，2Hz D．10m，1Hz第(5)题如图所示，一段长方体形导电材料，左右两端面的边长都为a和b，内有带电量为q的某种自由运动电荷．导电材料置于方向垂直于其前表面向里的匀强磁场中，内部磁感应强度大小为B。
当通以从左到右的稳恒电流I时，测得导电材料上、下表面之间的电压为U，且上表面的电势比下表面的低．由此可得该导电材料单位体积内自由运动电荷数及自由运动电荷的正负分别为（ ）A．，负B．，正C．，负D．，正第(6)题如图所示为实验室使用的旋转磁极式发电机模型，线圈的匝数，内阻，输出端与理想变压器的原线圈相连，理想变压器原、副线圈的匝数比为，副线圈外接电阻。
哈师大附中2024高三第三次模拟考试语文试题及答案
哈师大附中2024高三第三次模拟考试语文试题及答案一、现代文阅读(35分)(一)现代文阅读I(本题共5小题，18分)阅读下面的文字，完成1～5题。
材料一：最近，一些续写经典名著的故事，以有声读物的形式在播放平台上收获了一批拥趸、获得了不俗的关注。
只不过，这些别开生面甚至出乎意料的情节，并非来自令人的演绎，而是出自机器的计算。
随手搜索AI续写的故事，《两小儿辩日》的结果竟孔夫子骗小孩，组织儿童打架;《桃花源记》的结尾，为了保守秘密村民竟然设计陷害到访的渔人……清奇、古怪甚至狗血的剧情，与原作走向大相径庭，冲击着不少读者的想象力。
在消费了一番由AI创作的“奇文"后，不少人的第一个疑问是，为什么AI续写的东西，常常离经叛道?事实上，人工智能写作遵循着不同于艺术规律却也清晰、可控的技术逻辑。
这种被称作自然语言处理(NLP)的技术，旨在让机器拥有理解并解释人类语言的能力，最终实现人类与机器的顺畅公。
AI续写的故事，不少来自生成式的自然语言生成(NLG)，简单来说就是用大量的文学作品训东模型到成熟，在输入指定需求后模型生成对应的文稿。
现阶段，这种技术“写就”的文本多数还颠三倒四、不合常理，无法与真正的文学挂钩。
但事实上，人工智能写作的商业运用已经不是新鲜事了。
10年前，在地震频发的美国加州，洛杉矶时报》便开始研发用新闻机器人生成地震速报。
只需3分钟，人类惊魂甫定时，一篇规整格的地震速报便可以完成写作与发布。
近几年，类似的应用也在国内得到普及，从天气报道到股动态不一而足。
这类高度结构化的硬新闻，不需要太多创作发挥，只需按实情迅速填空，恰好能挥机器的长处。
不止提供事实，更要探路市美，如今，对人工智能创作的研究可谓方兴表艾。
从AI绘画、音乐作到舞蹈编排，许多审美活动的逻辑正被科学家不断归纳、总结后教给机器。
那么，会有一天，我所有智慧劳动的产品都可以由机器取代，换言之，作家会因为写作机器人而下岗吗?对此，我们无意在这里展开细密的技术哲学分析，亦难以猜测未来人、技术与艺术的具体走向。
江西师大附中2024-2025学年高三年级第二次四校联考物理试题含解析
江西师大附中2024-2025学年高三年级第二次四校联考物理试题注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B 铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B 铅笔绘、写清楚，线条、符号等须加黑、加粗．一、单项选择题：本题共6小题，每小题4分，共24分。
在每小题给出的四个选项中，只有一项是符合题目要求的。
1、—物块的初速为v 0，初动能为E k 0，沿固定斜面（粗糙程度处处相同）向上滑动，然后滑回到原处。
此过程中，物块的动能E k 与位移x ，速度v 与时间t 的关系图像正确的是（ ）A ．B ．C ．D ．2、2019年8月31日7时41分，我国在酒泉卫星发射中心用“快舟一号”甲运载火箭，以“一箭双星”方式，成功将微重力技术实验卫星和潇湘一号07卫星发射升空，卫星均进入预定轨道。
假设微重力技术试验卫星轨道半径为1R ，潇湘一号07卫星轨道半径为2R ，两颗卫星的轨道半径12R R ，两颗卫星都作匀速圆周运动。
已知地球表面的重力加速度为g ，则下面说法中正确的是（ ）A 1gRB ．卫星在2R 轨道上运行的线速度大于卫星在1R 轨道上运行的线速度C ．卫星在2R 轨道上运行的向心加速度小于卫星在1R 轨道上运行的向心加速度D ．卫星在2R 轨道上运行的周期小于卫星在1R 轨道上运行的周期3、有关原子物理学史，下列说法符合事实的是（ ）A ．卢瑟福通过α粒子散射实验提出了原子的枣糕模型B ．能量量子假说是普朗克首先提出的，光子假说则是爱因斯坦首先提出的C ．汤姆孙首先发现了中子，从而说明原子核内有复杂的结构D ．玻尔在光的粒子性的基础上，建立了光电效应方程4、如图所示，是一个研究向心力与哪些因素有关的DIS实验装置示意图，其中质量为m的圆柱体放置在未画出的光滑圆盘边缘，绳子一端连接小圆柱体，另一端连接力传感器，使圆柱体做匀速圆周运动。
2023-2024学年上海师大附中高三上期中英语试卷及答案
2023-2024学年上海师大附中高三上期中英语试卷II.Grammar and VocabularySection ADirections:After reading the passage below,fill in the blanks to make the passages coherent and grammatically correct.For the blanks with a given word,fill in each blank with the proper form of the given word;for the other blanks,use one word that best fits each blank.How to future-proof your career against the threat of AIEver since the industrial revolution,people have feared that technology would take away their jobs.While some jobs and tasks have indeed been replaced by machines,(21)_________ have emerged.The fear that jobs might disappear or be replaced through automation is understandable.Recent research found that a quarter of tasks that humans currently do in the US and Europe could be automated in the coming years.The future of work is a popular topic of discussion,with countless books(22)_________ (publish)each year on the topic.These books speak to the human need to understand how to future might be shaped.A strong theme of concern is found in these books about technology enabling certain tasks to be automated,(23)_________(make)many people out of jobs.Specifically,(24)_________worries people is that knowledge-based jobs--like those in accounting or law--that have long been regarded as being exclusive（专属的、专有的）to well-educated professionals are now under threat of replacement by machines.But there is another, (25)_________(ambitious)way to think about this.Some books stress the potential of humans collaborating with AI,to enhance each other's skills.(26)_________being replaced,lawyers would then be empowered by technology.In reality,automation and empowerment co-exist,both of which(27)_________(concern)with your future career.In light of this,the key to future-proofing your job is continued learning,(28)_________is a valuable skill to develop in any career.Also,critical thinking and analytical skills are going to be particularly central for how humans and machines(29)_________empower one another.Above all,choose a job that you enjoy and keep learning(30)_________if you do need to change course in the future,you know how to.Section BDirections:Fill in each blank with a proper word chosen from the box.Each word can only be used once.Note that there is one word more than you need.A.advanceB.appealC.associationD.differsE.diligentlyF.entirelyG.frustrationH.produceI.uncooperativeJ.vagueK.worthyThe garden pathImagine a plate holding two strawberries,identical in appearance.One came out of a supermarket box.By the time it reached the plate it may have been off the vine for two weeks.The other strawberry was picked from a garden minutes before being eaten.The first one will probably taste like a slightly sour cucumber,with a(n)__31__hint of berry taste.The second is likely to be sweet and floral（花的、花卉的）.Supermarket strawberries are not __32__without advantages:they are convenient and available in the northern hemisphere（地球的半球）in February.But the two berries are distinct from each other in the same way that hearing music in a concert hall__33__from listening to it on a worn-out cassette.The home-grown fruit is an edible（可食用的、能吃的）case for cultivating a home garden.Those who long dismissed gardening as a waste of time__34__this argument with great passion.They think a garden can yield peas that taste like the vibrant,green essence of spring; tomatoes and carrots of incomparable sweetness;and lettuces and herbs that taste like themselves rather than the plastic they are usually packaged in.Growing your own vegetables ensures a reliable supply,offering virtuous seasonal__35__.That attitude misrepresents the ultimate__36__of gardening;it mistakes the product for the purpose.On the other hand,a garden,especially in the early years,can also yield little but__37__. New gardeners may plant the wrong crops for their soil.And even expert gardeners can lose a season's harvest to__38__weather.No matter.The real joy of gardening is the time spent doing it.The deepest pleasure--as with cooking,writing,bringing up children or almost anything worthwhile--is in the work itself.A gardener's memories centre not on the food produced,but on long summer afternoons with hands in the dirt,surrounded by family,if the garden is at home,or deepening__39__with friendsand neighbours in a community garden.To garden is to__40__help life thrive（兴隆、兴旺、繁荣）with love and patience,in the ground and above it.III.Reading ComprehensionsSection ADirections:For each blank in the following passage,there are four words or phrases marked A,B, C and D.Fill in each blank with the word or phrase that best fits the context.Traveler's dilemmaAn airline loses two suitcases belonging to two different travelers,Lucy and Pete.Both suitcases happen to be the same and also contain__41__antiques.An airline manager tasked to settle their claims figures that simply asking the travelers for the price is hopeless,for they may __42__it.Instead,he asks them to write down the price of the antique as any dollar between2and 100__43__so that they can't negotiate with each other.If both write the same number,he will pay each of them that amount.But if they write different numbers,he will assume that the lower one is the actual price and that the person writing the higher number is__44__.In that case,he will pay both of them the lower number along with a(n)__45__and a punishment--the person who wrote the lower number will get$2more as a reward for honesty and the one who wrote the higher number will get$2less instead.__46__,if Lucy writes46and Pete writes100,Lucy will get$48 and Pete will get$44.What numbers will Lucy and Pete write?In1994,economist Kaushik Basu crafted the"Traveler's Dilemma"(TD)to challenge the narrow view of__47__.TD serves the purpose because the game's logic dictates that2is the logical option.Admittedly,Lucy's first idea is that she should write the largest possible number, which will earn her$100if Pete is similarly__48__.Soon,however,it strikes her that if she wrote 99instead,she would make a little more money,because in that case she would get$101.But surely this__49__will also occur to Pete,who will choose99as well.Continuing with this line of reasoning would send the travelers down to the smallest permissible number,namely,2-this is where the__50__leads us.In experimental studies,contrary to the predictions,most people pick$100or a number close to it,either without thinking the problem through or while fully aware they are__51__the reasonable choice.So,while most people instinctively feel that they would select a much highernumber than$2,this instinct seems to__52__the predicted logical outcome,$2.By rejecting the logical choice and acting illogically by writing a higher number,people end up getting a substantially bigger__53__.Based on these studies,researchers have proposed that people appear to have a natural,positive attitude in favor of__54__.This attitude leads to a cooperative model that favors the seemingly unreasonable but__55__strategies.41.A.precious B.identical C.controversial D.fake42.A.assess B.highlight C.neglect D.overstate43.A.intentionally B.precisely C.separately D.casually44.A.supervising B.cheating C.imitating plaining45.A.bonus B.identity C.discipline D.alarm46.A.By contrast B.In addition C.For instance D.On the whole47.A.negotiation B.fairness C.reason D.instinct48.A.calm B.greedy C.foolish D.imaginary49.A.pessimism B.perseverance C.challenge D.insight50.A.evidence B.logic C.goal D.emotion51.A.contributing to B.departing from C.appealing for D.dreaming about52.A.echo B.overlook C.contradict D.alter53.A.punishment B.interest C.investment D.payoff54.A.cooperation B.investigation C.perfection D.imagination55.A.straightforward B.instructive C.acceptable D.beneficialSection BDirections:Read the following two passage.Each passage is followed by several questions or unfinished statements.For each of them there are four choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage you have just read.(A)Do Your Employees suffer from Friday-Itis?Have you heard about Friday-itis,the significant drop in motivation and concentration seen on Fridays among may workers who look forward to their weekend days off but a day in advance?Almost every employee has at some point experienced the need to take an unplanned day offfor rest,for the sake of his physical or mental health.Defined by the Labour Standards Act and most collective agreements and employment contracts,a sick day is a one-time day of leave taken by an employee due to the inability,whether psychological and physical,to be present at his workplace to adequately carry out his professional functions.Short and occasional,this involuntary absence is easily accepted and absorbed by the company.But when it is repeated and almost invariably falls on the eve of a weekend,absence for last minute sickness can quickly give an employer a headache.When it becomes avoidable,systematic and based on a false motive,this"Friday Sickness" syndrome falls into the category of unreasonable and abusive absenteeism.This has significant impact on a company's organizational efficiency,productivity and competitiveness.So much so that many managers avoid setting up important meetings on Fridays,knowing the higher likelihood that their staff will all be at work the rest of the week.Despite the high cost of absenteeism,a study published in2012by the Conference Board of Canada found that only46%of Canadian companies report that they monitor their employees' absences and the reasons given.To properly assess absenteeism means beginning to understand it and not letting it pass.Although abusive in form and use,Friday sick leave can also be explained by other factors that need to be taken seriously.An employee can take a break in the wrong way that he might reasonably need,in connection with factors specific to the company--having a clearly excessive, workload,for example.Focusing on suspicious monitoring or the threat of fines is not a solution for employers. Indirectly forcing presenteeism on an employee,in other words to come in and stay at work even when he has serious reasons not to do so,can be even more damaging for everyone.Statistics Canada estimates that loss of productivity associated with presenteeism is7.5times higher than that caused by absenteeism.56.What is Friday-itis?A.A decrease in motivation on Fridays due to employees anticipating the weekend.B.A medical condition that specifically affects employees on Fridays.C.A term used to describe excessive absenteeism on Fridays.D.A syndrome where employees refuse to work on Fridays.57.According to the passage,what kind of absence does the company easily accept?A.Absence for last minute sickness.B.Repeated absence before weekends.C.Short and occasional absence.D.Avoidable and systematic absence.58.What impact does repeated last-minute sickness absences on Fridays have on employers?A.It leads to increased productivity and competitiveness.B.It causes employees to prioritize rest and their overall well-being.C.It has a negative impact on organizational efficiency and productivity.D.It provides employers with a headache due to the need for more meetings.59.What is the potential consequence of forcing presenteeism on employees?A.It leads to a decrease in overall productivity.B.It results in a decrease in absenteeism rates.C.It helps in improving employees'motivation and concentration.D.It causes employees to take unplanned days off more frequently.(B)Memberships Sun City OV Resident Public Single Couple Single Couple18Hole PlayCurrent Annual$3,590$6,685$4,060$7,175 New Annual$3,770$7,020$4,265$7,535 Current Combo18/9$5,345$6,230 Hyrid(Fee+Reduced Daily Rate)$1,000$1,250New Combo18/9$5,615$6,540 Corporate$3,1039Hole PlayCurrent Annual$2,155$4,020$2,440$4,530 New Annual$2,265$4,220$2,565$4,755Additional Offerings18-Hole Smart Card(Virtual Punch Card)$480$7009-Hole Smart Card(Virtual Punch Card)$32018-HOLE ANNUAL MEMBERSHIPS●Green fees included●Driving range privileges●9-day advance tee time reservations●Corporate Membership:Limited availabilityAfter11:00AM,Mon-Fri;anytime Sat-Sun and holidays9-HOLE ANNUAL MEMBERSHIPS●Green fees included●Driving range privileges●8-day advance tee time reservations●Additional9holes10/11-5/31$20-6/1/-9/19$10MEMBER BENEFITS●NO TRAIL FEE for private cart owners●NO INITIATION FEE●Pro Shop discount25%off apparel10%off all accessories,equipment&golf balls,excluding sale items.●Members and resident's guests play at the resident guest's daily rate when accompanied bymember or resident.Resident guest rate is an additional$10for18and$5for9holes10/11/20-5/31/21●Payment schedule available(9&18-Hole Annual memberships only)50%before July1-balance due by Oct.31NOTE:Membership rates for residents do not include a golf cart.An additional cart fee will be applied for residents when using a club cart.HYBRID MEMBERSHIP●Golf Fee per season(Reduced Daily Rate does not include the rental cart or tax)●Summer18holes-$15/9holes-$10●Fall18holes-$25/9holes$15●Winter18holes$30/9holes$20●Spring18holes-$25/9holes$15●8-day advance tee time reservations●Pro Shop discounts25%off apparel10%off accessories,equipment,shoes,hats,and golfballs,excluding sale items.SMART CARD-10PLAY●10--Pre-paid Green fees●8-day advance tee-time reservations●May be used for guest(s)●No expiration or refunds●Golf cart not included in Resident Smart Card●Public Smart Card includes cartNEW ANNUAL MEMBERS●Purchases your annual pass June1and play for13months(6/1/20-6/30/21)●Proration available after7/15/2160.If you are one of Sun City OV residents'guests who want to play for18-Hole for3days,what is the overall rate?A.$15B.$30C.$45D.$6061.Which of the following is NOT TRUE according to this advertisement?A.If you are a resident,your membership rates will include a golf cart.B.If you apply for a Smart Card,you are not entitled to an opportunity of refunds.C.If you apply for a hybrid membership and you want to save money,you can play in summer.D.For a non-resident to apply for a single18-HPCA membership,you have to pay at least$2030 before July1st.62.Where would you most probably see this ad?A.A food magazine.B.A science journal.C.A travel brochureD.A fitness leaflet.(C)DeafenedIt has always been assumed that noise is a problem unique to animals.But a new study by Ali Akbar has revealed that plants suffer too.That plants can be damaged indirectly by noise pollution has never been in doubt.Since most flowering species depend upon pollinators（授粉者）and most fruit-bearing species need animals to spread around their seeds,it is obvious that if these animal partners are harmed by noise then their botanical counterparts（同类者、极其相似的人或物）will do badly,too.What has remained unknown is whether or not plants themselves suffer directly from noise pollution.Scientists have previously assumed that plants may be able to sense sound waves as they are struck by them.A number of experiments have confirmed this in recent years--plants heavily exposed to ultrasound（超声）in the lab have shown a range of negative responses including the expression of stress-related genes,slowed growth and reduced development of seeds.Yet attacking plants with ultrasound is not the same as growing them in the presence of actual traffic noise.To this end,Ali Akbar decid'ed to set up an experiment to study precisely this question.Working with a team of colleagues,he grew marigolds and sage in his lab that are commonly found in urban environments.The plants were divided into two groups after getting mature.One group was exposed to73decibels（分贝）of traffic noise.The other group was left to grow in silence.After15days had passed,samples were taken from the youngest fully expanded leaves on every plant in the experiment and studied.None of the plants exposed to the traffic noise did well.Analysis of their leaves revealed that all of them were suffering.The team found that a range of hormones（荷尔蒙）normally associated with healthy growth and development in plants were present at significantly reduced levels in the plants exposed to the noise.Two stress hormones,which are normally produced to prevent insect attacks and deal with salty soil or very cold temperatures,were elevated.Ali Akbar's findings make it clear that though plants lack ears,the noise of traffic still bothers them enough to trigger dramatic stress responses that are not much different to those that would befound in plants exposed to drought,highly concentrated salt or heavy metals in their soil.The next question is whether all noise pollution affects all species in the same way.The natural world is by no means silent.Whether some plant species have evolved coping mechanisms, which might one day be collected and transferred into urban-living species,is a mystery worth exploring.63.What did scientists believe in the past?A.Noise is a problem facing both animals and plants.B.Plants can be affected by noise in an indirect way.C.Animal partners can do harm to their botanical partners.D.Sound waves can damage plants they strike.64.What did Ali Akbar want to confirm in their experiment?A.Ultrasound is similar to traffic noise in that it doesn't harm plants.B.Plants exposed to ultrasound exhibit negative signs of growth.C.Traffic noise causes plants to grow unhealthfully and slowly.D.Plant leaves contain hormones dealing with a harsh environment.65.Which of the following statements is TRUE?A.Plants growing is silence have a reduced level of hormones.B.Plants exposed to noise respond differently from those in drought.C.Different noise pollution has the same effect on all species.D.An increases in stress hormones in plants means they are in hardship.66.What can we infer from the passage?A.Some plants may not necessarily be harmed by the sound in nature.B.Some plants have surely developed a method to cope with traffic noise.C.Unban-living species can be engineered to grow well in the natural world.D.The silence in nature promotes the development of noise coping mechanisms.Section CDirections:Read the passage carefully.Fill in each blank with a proper sentence given in the box.Each sentence can be used only once.Note that there are two more sentences than you need.A.So people feel like they are getting more done.B.If you do these or similar things,then you are one of many multitaskers.C.People are less able to filter out their knowledge of the previous task and look at things afresh.D.Some psychologists say that the human brain just isn't good at concentrating on two things at the same time.E.Recent studies,however,show that Melissa and others like her are perhaps getting less done than they think they are.F.Now,with numerous studies to refer to,the answer could not be more clear-multitasking isn't all it's supposed to be.Are you a multitasker?Do you watch TV and cook dinner at the same time?Do you often interrupt your work to check your email?Do you talk on your phone while you're driving?_________67_________ According to a survey by the magazine Scientific American MIND,90percent of American adults multitask regularly.Most people say they multitask because they are too busy,and multitasking saves time. Popular electronic devices like tablets and smart phones make it convenient to do several tasks at once._________68_________Melissa Brown of Evanston,Illinois,says she has no trouble listening to music,surfing the Internet,and sending text messages to friends while she does her homework._________69_________That's because with multitasking,there are actually many "micro-interruptions"in which people stop one task,start another,and eventually return to the first one.These stops and starts make it difficult to concentrate,and so multitaskers actually waste time, according to a study at Microsoft Corporation.In the study,workers who interrupted their work to answer an email or text message took an average of15minutes to return to the work they were doing before the interruption._________70_________This doesn't matter if you're only preparing a salad and listening to the radio,they say.But if you're doing a difficult task that requires thinking,like writing a report, then multitasking can slow you down and cause mistakes.It can even be dangerous,as in the case of people who talk on the phone,eat,or even apply makeup while driving.IV.Summary WritingDirections:Read the following three passages.Summarize the main idea and the main point(s)of the passage in no more e your own words as far as possible.Brain HungerDo you ever feel like no matter how much you eat,you are still not full?You may be suffering from a condition known as"brain hunger".This occurs when the dopamine（多巴胺）signaling in your brain is damaged,making it difficult for your body to recognize when it has had enough food.What are the underlying causes of brain hunger?Genetics can play a role.Research has shown that the dopamine receptor D4gene may be responsible for regulating cognitive functions related to eating behavior and body weight.Some people have this gene variation that does not allow for a normal dopamine release in response to things that typically would bring joy and pleasure,including food.This means that those individuals won't get the same"high"feeling they would normally experience when eating. Obesity is also linked to brain hunger.Brain scans of obese individuals show changes in dopamine signaling pathways which can lead to less recognition of the feeling of being full even after a meal.While it is still unclear whether obesity or genetics is the primary contributor to brain hunger, one thing is certain losing weight alone is not enough for those affected.Studies show that certain areas of the brain responsible for sensing fullness do not change even with weight loss,which could lead to continued hunger and weight regain.So,what came first:genetics or obesity that cause this brain signaling change?It is possible that if someone has a genetic tendency to be affected by this abnormal dopamine signaling,an environmental trigger can start a series of brain hunger which brings about overeating.It is also important to practice mindful eating and pay attention to hunger cues to begin perceiving the feeling of being full.Brain hunger can be an uncomfortable and frustrating condition,but it is possible to manage through a combination of treatments.V.TranslationDirections:Translate the following sentences into English,using the words given in thebrackets.72.要不了多久这款新产品就会被推向市场。
云南省昆明市师大附中2025届高三第二次模拟考试语文试卷含解析
云南省昆明市师大附中2025届高三第二次模拟考试语文试卷注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．1、将下面的五句诗删去一句，再将余下的排序组成七绝，顺序正确的一项是①绿阴冉冉遍天涯②青草池塘独听蛙③秋庭暮雨类轻埃④林莺啼到无声处⑤门外无人问落花A．⑤①④②B．⑤③②①C．③②④⑤D．①②⑤④2、在下面一段文字横线处填入语句，衔接最恰当的一项是王羲之不会想到，他的《兰亭序》，居然引发了一场浩浩荡荡的临摹和刻拓运动，贯穿了其后一千六百多年的漫长岁月。
，，，，，但那条河仍在，带着酒香，流淌到我们面前，①永和九年暮春之初的那个晴日，就这样在历史的长河中被放大了②但这已经不重要了③面对着这些接力似的摹本，我们已无法辨识究竟哪一张更接近它原初的形迹④几乎书法史上所有重要的书法家都临摹过《兰亭序》⑤它容纳了一千多年的风雨岁月，变得浩荡无边⑥一代又一代的艺术家把个人的生命投入进去，转眼就没了踪影A．①⑤④⑥③②B．①⑥②④③⑤C．④①⑥③②⑤D．④③②①⑤⑥3、下列各句中，没有语病的一句是（）A．可以想见，孩子们与书法的亲近不仅仅是学习一撇一捺，更是学习如何做人，甚至是学习先贤的曼妙哲学、绮丽文字。
B．对于驾校教练借口以学员即将三年期满为名义收取的所谓交警部门的“指标费”、“公关费”的行为，广大学员切勿上当受骗。
C．通过政府网站、微博、微信等渠道，加强政策引导，做好疏、堵结合，才会将负面影响变成澄清事实、推动工作的正面力量。
湖南省师大附中2024届高三下模拟考试语文试题及答案
湖南省师大附中2024届高三下模拟考试语文试题及答案注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2．回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
回答非选择题时，将答案写在答题卡上。
写在本试卷上无效。
3．考试结束后，将本试卷和答题卡一并交回。
一、现代文阅读（35分）（一）现代文阅读Ⅰ（本题共5小题，18分）阅读下面的文字，完成小题。
有两大主要因素决定了你什么时候想睡觉，什么时候想醒来。
第一个因素，是你大脑深处的24小时生物钟发射出的信号。
生物钟会制造出循环的昼夜节律，让你在夜晚和白天的常规时段感到疲倦或清醒。
第二个因素，是一种在你的大脑中积聚的化学物质，会制造出“睡眠压力”。
这两个因素之间的平衡决定了你白天的清醒和专注程度，晚上感到疲倦并准备上床睡觉的时间，还在某种程度上决定了你会睡得多好。
对于白天活动的昼行性物种（比如人类）来说，昼夜节律会在白天激活大脑和身体的许多机制，使你保持清醒和警觉。
这些过程会在夜间逐渐变得低缓，从而消除产生警觉性的影响。
值得注意的是，尽管人类显示出一种固定的24小时作息模式，每个人各自的高峰和低谷却有着明显的差异。
对一些人来说，他们在白天很早的时候就达到清醒状态的高峰，而睡眠的低谷也在入夜后早早到来。
这些都是“晨型人”，大约占总人口数的40%。
另一些人则是“夜型人”，约占人口总数的30%。
他们更喜欢很晚入睡，第二天上午很晚才起，甚至下午才起床。
24小时生物时钟坐落在大脑中央一处被称为“视交叉上核”的地方。
你的视交叉上核通过一个叫作褪黑激素的循环信使，将它的日夜反复的信号传递给你的大脑和身体。
褪黑激素的作用就像一个强有力的扩音器，向大脑和身体大声喊出一个明确的信息：“天黑啦，天黑啦！”这时，我们就收到了一份进入夜间的通知，也就是一个着手安排睡眠时间的生物命令。
但是褪黑激素对睡眠本身的形成几乎不产生影响。
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哈师大附中2011年11月高三上学期期中考试英语试题答
案
听力答案1—5 ACBAB 6—10 BACBA 11—15 BCBAC 16—20 ACBCA
单选答案21-25 DBAAB 26-30 ABDAC 31-35 DCCDA
完型答案：36-40 BCCDA 41-45 BDACB 46-50 CADDA 51-55 BBDCA
阅读答案：56-59 CAAC 60-63BDDC 64-67DACD 68-70BAA 71-75CEAGD
改错答案：1. was---were 2. catch---caught 3. out---up 4. to home---home
5. but---and
6. birds---bird
7. fly---to fly
8. delighting---delighted
9. him---them 10. good---well
书面表达范文：
Tracking My Growth
The process of growing up is complex for every person, for there are many influential factors in a person’s growth as well as the development of his personality．As for me, what has affected me most in my both growth and personality are family and friends, the two equally important factors．
After one is born, the first surroundings is the family in which he will grow up．Family plays a significant role in shaping children’s character because it’s children’s most direct source of knowledge and experiences．Those who are brought up in good families tend to possess many pleasant characters and vice versa．
On the other hand, friends in some ways influence him more rapidly than families do．Friends have many different opinions and personalities．Discussing with them builds up his personality．Frankly speaking, I get lots of valuable things from my friends．Family offers me warmth and care．Friends give me strength and horizons．Therefore, both of them are most influential in my growth
哈师大附中2011年11月高三上学期期中考试英语试题答
案
听力答案1—5 ACBAB 6—10 BACBA 11—15 BCBAC 16—20 ACBCA
单选答案21-25 DBAAB 26-30 ABDAC 31-35 DCCDA
完型答案：36-40 BCCDA 41-45 BDACB 46-50 CADDA 51-55 BBDCA
阅读答案：56-59 CAAC 60-63BDDC 64-67DACD 68-70BAA 71-75CEAGD
改错答案：1. was---were 2. catch---caught 3. out---up 4. to home---home
5. but---and
6. birds---bird
7. fly---to fly
8. delighting---delighted
9. him---them 10. good---well
书面表达范文：
Tracking My Growth
The process of growing up is complex for every person, for there are many influential factors in a person’s growth as well as the development of his personality．As for me, what has affected me most in my both growth and personality are family and friends, the two equally important factors．
After one is born, the first surroundings is the family in which he will grow up．Family plays a significant role in shaping children’s character because it’s children’s most direct source of knowledge and experiences．Those who are brought up in good families tend to possess many pleasant characters and vice versa．
On the other hand, friends in some ways influence him more rapidly than families do．Friends have many different opinions and personalities．Discussing with them builds up his personality．Frankly speaking, I get lots of valuable things from my friends．
Family offers me warmth and care．Friends give me strength and horizons．Therefore, both of them are most influential in my growth
1。