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云南省昆明市第一中学2025届化学高二上期中学业水平测试试题含解析

云南省昆明市第一中学2025届化学高二上期中学业水平测试试题含解析

云南省昆明市第一中学2025届化学高二上期中学业水平测试试题注意事项:1.答题前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在条形码区域内。

2.答题时请按要求用笔。

3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试卷上答题无效。

4.作图可先使用铅笔画出,确定后必须用黑色字迹的签字笔描黑。

5.保持卡面清洁,不要折暴、不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。

一、选择题(每题只有一个选项符合题意)1、1997年,第一只“克隆羊”在英国诞生,“克隆羊”的关键技术之一是找到一些特殊的酶,它们能激活普通体细胞,使之像生殖细胞一样发育成个体。

下列有关酶的叙述错误的是A.酶是一种特殊的蛋白质B.酶的催化作用具有选择性和专一性C.酶通常具有高效催化作用D.高温或紫外线的照射会增加酶的活性2、鉴别油脂和石蜡油的试剂最好是A.硫酸B.食盐C.NaOH的酚酞溶液D.Na2CO3溶液3、如图是某元素原子结构示意图,下列关于该元素的判断正确的的是()A.位于第三周期元素B.属于第VII族元素C.该元素的化合价只有-2价D.该原子在化学反应中容易得到2个电子4、下列事实中,不能用勒夏特列原理解释的是A.氯水中存在平衡Cl2+H2O HCl+HClO,当加入AgNO3溶液后溶液颜色变浅B.反应CO+NO2CO2+NO(正反应放热),升高温度可使平衡向逆反应方向移动C.在合成氨工业中,常通入过量的氮气以提高氢气的利用率D.合成氨反应N2+3H22NH3(正反应放热)中使用催化剂5、下列有关热化学方程式的表示及说法正确的是A.已知2H2(g)+O2(g)=2H2O(g) ΔH=-483.6 kJ/mol,则氢气的燃烧热为241.8 kJ/molB.已知C(石墨,s)=C(金刚石,s) ΔH>0,则金刚石比石墨稳定C.含20.0 g NaOH的稀溶液与稀硫酸完全中和,放出28.7 kJ的热量,则该反应中和热的热化学方程式为NaOH(aq)+1/2H2SO4(aq)=1/2Na2SO4(aq)+H2O(l) ΔH=-57.4 kJ/molD.已知I2(g)+H2(g)=2HI(g) ΔH1,I2(s)+H2(g)=2HI(g) ΔH2,则ΔH1>ΔH26、某化学反应的能量变化如下图所示。

云南省昆明市第一中学2024-2025学年高二上学期期中考试数学试题

云南省昆明市第一中学2024-2025学年高二上学期期中考试数学试题

云南省昆明市第一中学2024-2025学年高二上学期期中考试数学试题一、单选题1.过点()1,1P -且平行于直线y x =的直线方程为()A .20y x -+=B .20x y +-=C .20x y -+=D .0x y +=2.下列函数中,是奇函数且最小正周期为1的函数为()A .()cos y x π=B .()tan y x π=C .()sin y x π=D .()sin y x π=3.已知0a b >>,椭圆1E :22221x y a b+=和2E :2222111x y a b +=++的离心率分别为1e ,2e ,则()A .12e e >B .12e e <C .12e e =D .1e ,2e 的大小关系不确定4.在ABC V 中,内角A ,B ,C 所对的边分别为a ,b ,c ,若12AB BC ac ⋅=,则cos B 的值为()A .B .12-C .12D 5.在正四面体ABCD 中,M 为BC 的中点,则直线AM 和CD 夹角的余弦值为()A .13B .12C D .66.已知()2,2A --,()2,6B -,()4,2C -三点,点P 在圆224x y +=上运动,则222PA PB PC++的取值范围为()A .[]72,88B .[]36,44C .⎡⎣D .[]36,887.已知F 是椭圆C :()222210+=>>x y a b a b的右焦点,点P 在椭圆C 上,线段PF 与圆22224c b x y ⎛⎫-+=⎪⎝⎭相切于点Q ,且4PF QF = ,则椭圆C 的离心率等于A .13B .12C .3D .28.边长为2的正三角形ABC 的内切圆上有一点P ,已知AP xAB yAC =+,则2x y +的取值范围是()A .3⎡⎣B .13,1⎡⎤⎢⎥⎣⎦C .1,13⎛⎫⎪⎝⎭D .⎣⎦二、多选题9.已知圆O :222x y r +=(0r >)与圆M :()()223416x y -+-=,则下列说法正确的有()A .若1r =,则两圆外切B .若1r =,直线1x =-为两圆的公切线C .若2r =,则两圆的公共弦所在直线方程为6850x y ++=D .若()0,1r ∈,则两圆外离10.已知()()12(,0),,00F C F c c ->是椭圆222:1(1)xE y a a+=>的左、右焦点,点P 在椭圆E 上,设O 为坐标原点,且2 POF 为等边三角形,则下列说法正确的是()A .120PF PF ⋅= B .122PF PF =C .2c =D .点P 11.若0,0a b >>且41a b ++=,则下列不等式中一定成立的是()A 92B .15a b +C 12D 3>三、填空题12.函数()sin cos f x x x =+的值域为.13.一动圆与圆22650x y x +++=外切,同时与圆226910x y x +--=内切,则动圆圆心的轨迹方程为.14.如图所示平行六面体1111ABCD A B C D -中,1111,6045,===∠=∠=︒=︒∠AB AD AA DAB DAA BAA ,则1AC =.四、解答题15.如图所示,在长方体1111ABCD A B C D -中,1AD =,12AB AA ==,N 、M 分别AB 、1C D 的中点.(1)求证://NM 平面11A ADD ;(2)求证:NM ⊥平面11A B M .16.已知椭圆()2222:10x y C a b a b+=>>的左焦点为()11,0F -,且经过点3(1,)2.(1)求椭圆C 的方程;(2)过点1F 作倾斜角为45 的直线l ,直线l 与椭圆C 相交于,A B 两点,求AB 的长度.17.在ABC V 中,内角A ,B ,C 所对的边分别为a ,b ,c ,已知2c =,π3C =,()sin sin 2sin2C B A A+-=(1)求ABC V 的面积S ;(2)求ABC V 的内切圆半径r .18.已知圆C 经过点()52A -,和()32B ,,且圆心C 在直线1l :20x y --=上.(1)求圆C 的标准方程;(2)已知过点()33M --,的直线2l 被圆C 所截得的弦长为8,求直线2l 的方程.(3)圆C 关于直线1y =-的对称圆是圆Q ,设()11M x y ,、()22P x y ,是圆Q 上的两个动点,点M 关于原点的对称点为1M ,点M 关于x 轴的对称点为2M ,如果直线1PM 、2PM 与y 轴分别交于()0m ,和()0n ,,问m n ⋅是否为定值?若是求出该定值;若不是,请说明理由.19.如图,在四棱锥P ABCD -中,底面ABCD 是边长为2的菱形,平面PAD ⊥平面ABCD ,PA CD ⊥,60ABC ∠=︒,1PA =,点E ,F 分别为棱PD ,BC 的中点,点G 在线段AF 上.(1)证明:PA ⊥平面ABCD ;(2)求点F 到平面PCD 的距离;(3)设直线EG 与平面ABCD ,平面PAD ,平面PAF 所成的角分别为1θ,2θ,3θ,求123sin sin sin θθθ++的最大值.。

云南省昆明市第一中学2024届物理高二上期中教学质量检测试题含解析

云南省昆明市第一中学2024届物理高二上期中教学质量检测试题含解析

云南省昆明市第一中学2024届物理高二上期中教学质量检测试题注意事项:1.答题前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在条形码区域内。

2.答题时请按要求用笔。

3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试卷上答题无效。

4.作图可先使用铅笔画出,确定后必须用黑色字迹的签字笔描黑。

5.保持卡面清洁,不要折暴、不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。

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、在电场中的某点放一个检验电荷,其电荷量为q,受到的电场力为F,则该点的电场强度为FEq,下列说法正确的是()A.若移去检验电荷,则该点的电场强度为0B.若检验电荷的电荷量变为4q,则该点的场强变为4EC.若放置到该点的检验电荷变为-2q,则场中该点的场强大小不变,但方向相反D.若放置到该点的检验电荷变为-2q,则场中该点的场强大小、方向均不变2、一个物体沿直线运动,从t=0时刻开始,物体的-t的图象如图所示,图线与横、纵坐标轴的交点分别为-1 s和0.5 m/s,由此可知A.物体做速度大小为0.5 m/s的匀速直线运动B.物体做变加速直线运动C.物体做匀加速运动,加速度的大小为1 m/s2D.物体做匀减速运动,初速度大小为0.5 m/s3、当导体球靠近带正电的金属球时,周围的电场线如图所示。

则a、b两点的电场强度A.大小不等,方向不同B.大小不等,方向相同C.大小相等,方向不同D.大小相等,方向相同4、如图所示是“探究导体电阻与其影响因素”的装置图,a、b、c、d为四条不同的金属导体.在长度、横截面积、材料三个因素方面,b、c、d跟a相比,分别只有一个因素不同:b与a的长度不同;c与a横截面积不同;d与a材料不同.用电压表分别测量a、b、c、d两端的电压.则下列说法正确的是( )A.根据a、c两端的电压的关系可知导体电阻与导体长度有关B.根据a、b两端的电压的关系可知导体电阻与横截面积有关C.根据a、d两端的电压的关系可知导体电阻与材料有关D.由实验结论可得出导体电阻与导体的长度、横截面积、材料无关5、如图所示,竖直平面内有一固定的光滑椭圆大环,其长轴长BD=4L、短轴长AC=2L。

云南省昆明市第一中学2025届高三下学期联合考试数学试题含解析

云南省昆明市第一中学2025届高三下学期联合考试数学试题含解析

云南省昆明市第一中学2025届高三下学期联合考试数学试题注意事项: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。

一、选择题:本题共12小题,每小题5分,共60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.下列判断错误的是( )A .若随机变量ξ服从正态分布()()21,,40.78N P σξ≤=,则()20.22P ξ≤-=B .已知直线l ⊥平面α,直线//m 平面β,则“//αβ”是“l m ⊥”的充分不必要条件C .若随机变量ξ服从二项分布: 14,4B ξ⎛⎫⎪⎝⎭, 则()1E ξ= D .am bm >是a b >的充分不必要条件2.在ABC ∆中,,A B C ∠∠∠所对的边分别是,,a b c ,若3,4,120a b C ︒==∠=,则c =( )A .37B .13C D 3.设双曲线221x y a b+=的一条渐近线为2y x =-,且一个焦点与抛物线24x y =的焦点相同,则此双曲线的方程为( ) A .225514x y -= B .225514y x -= C .225514y x -= D .225514x y -= 4.已知甲、乙两人独立出行,各租用共享单车一次(假定费用只可能为1、2、3元).甲、乙租车费用为1元的概率分别是0.5、0.2,甲、乙租车费用为2元的概率分别是0.2、0.4,则甲、乙两人所扣租车费用相同的概率为( ) A .0.18B .0.3C .0.24D .0.365.已知A ,B 是函数()2,0ln ,0x x a x f x x x a x ⎧++≤=⎨->⎩图像上不同的两点,若曲线()y f x =在点A ,B 处的切线重合,则实数a 的最小值是( ) A .1-B .12-C .12D .16.关于函数11()4sin 4cos 2323f x x x ππ⎛⎫⎛⎫=+++ ⎪ ⎪⎝⎭⎝⎭,有下述三个结论:①函数()f x 的一个周期为2π;②函数()f x 在423,ππ⎡⎤⎢⎥⎣⎦上单调递增; ③函数()f x 的值域为[4,42]. 其中所有正确结论的编号是( ) A .①②B .②C .②③D .③7.阅读下侧程序框图,为使输出的数据为,则①处应填的数字为A .B .C .D .8.一个袋中放有大小、形状均相同的小球,其中红球1个、黑球2个,现随机等可能取出小球,当有放回依次取出两个小球时,记取出的红球数为1ξ;当无放回依次取出两个小球时,记取出的红球数为2ξ,则( ) A .12E E ξξ<,12D D ξξ< B .12E E ξξ=,12D D ξξ> C .12E E ξξ=,12D D ξξ<D .12E E ξξ>,12D D ξξ>9.已知:|1|2p x +> ,:q x a >,且p ⌝是q ⌝的充分不必要条件,则a 的取值范围是( ) A .1a ≤B .3a ≤-C .1a ≥-D .1a ≥10.设全集U =R ,集合{}02A x x =<≤,{}1B x x =<,则集合A B =( )A .()2,+∞B .[)2,+∞C .(],2-∞D .(],1-∞11.已知集合2{|1}A x x =<,{|ln 1}B x x =<,则 A .{|0e}A B x x =<< B .{|e}A B x x =< C .{|0e}A B x x =<<D .{|1e}AB x x =-<<12.设1F ,2F 是双曲线()2222:10,0x yC a b a b-=>>的左,右焦点,O 是坐标原点,过点2F 作C 的一条渐近线的垂线,垂足为P .若16PF =,则C 的离心率为( )A .2B .3C .2D .3二、填空题:本题共4小题,每小题5分,共20分。

2025届昆明市第一中学化学高一第一学期期中统考试题含解析

2025届昆明市第一中学化学高一第一学期期中统考试题含解析

2025届昆明市第一中学化学高一第一学期期中统考试题考生请注意:1.答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内,不得在试卷上作任何标记。

2.第一部分选择题每小题选出答案后,需将答案写在试卷指定的括号内,第二部分非选择题答案写在试卷题目指定的位置上。

3.考生必须保证答题卡的整洁。

考试结束后,请将本试卷和答题卡一并交回。

一、选择题(共包括22个小题。

每小题均只有一个符合题意的选项)1、下列关于物质分类的正确组合是()A.A B.B C.C D.D2、用NaCl 固体配制0.1mo/L 的NaCl 溶液1000mL,下列操作或说法正确的是A.将5.85gNaCl 固体溶于IL水中可配成0.1mol/L的NaCl 溶液B.配制溶液时容量瓶中原来有少量蒸馏水不会影响实验结果C.固体溶解后,将溶液转移到容量瓶中,然后向容量瓶中直接加水稀释到刻度线D.称量时,将固体NaCl 直接放在天平左盘上3、为确定某溶液中是否存在Cl﹣、SO42-和CO32-,进行如下实验:①取少量溶液滴加Ba(NO3)2溶液,产生白色沉淀。

②然后继续加入稀盐酸至溶液呈酸性,产生无刺激性气味且能使澄清石灰水变浑浊的气体;白色沉淀部分溶解。

③取上层清液继续滴加Ba(NO3)2溶液至无沉淀时,再滴加AgNO3溶液,产生白色沉淀。

根据实验,以下推测不正确的是( )A.一定有SO42-B.一定有CO32-C.不能确定Cl﹣是否存在D.不能确定SO42-是否存在4、下列物质,前者属于电解质,后者属于非电解质的是A.NaCl晶体、BaSO4B.NaHCO3、蔗糖C .铜、二氧化硫D .稀盐酸、酒精 5、某化学兴趣小组进行如下实验:实验① 向4KMnO 晶体中滴加浓盐酸,产生黄绿色气体2Cl ; 实验② 向2FeCl 溶液中通入少量实验①中产生的2Cl ,溶液变为黄色; 实验③ 取实验②中生成的溶液滴在淀粉KI 试纸上,试纸变为蓝色。

2024届云南省昆明市第一中学高三第十次月考英语试题

2024届云南省昆明市第一中学高三第十次月考英语试题

2024届云南省昆明市第一中学高三第十次月考英语试题一、阅读理解Some Innovative BuildingsCube Houses (Rotterdam, Netherlands)Inspiration: Trees in a forestSize: About one-fourth the size of a basketball courtAs a popular attraction, the 38 Cube Houses are also real houses that people live in! The cubes have concrete foundations and floors with a wood-frame living space on top. The furniture is tailor-made to fit the odd angles. Architect Piet Blom designed the homes based on the idea of “living as an urban roof”. Wonder Works (Pigeon Forge, the USA)Inspiration: A laboratory in an Italian-style villaSize: About nine-tenths the size of a football fieldLooking at the cracks in this building, you might think, Is it about to collapse? And how do they get palm trees to grow upside down? But the upside-down features are just for show. This indoor amusement park is actually pretty normal with more than 100 hands-on science exhibits and activities. Guangzhou Opera House (Guangzhou, China)Inspiration: Erosion (侵蚀) of rocks and landscapesSize: About 13 times the size of a football fieldThe Guangzhou Opera House was designed by Iraqi-born architect Zaha Hadid. Though nature inspired the architect, she used 21st-century construction and design methods to make her design a reality. GPS positioning and laser techniques helped shape the structure. Bubble Palace (Cannes, France)Inspiration: “Habitology”—the idea that habitats should use nature’s curves (曲线)Size: Almost three times the size of a basketball courtThis house may look like a space settlement, but it’s really a 10-bedroom palace. Made of cave-like bubbles, it also has ponds, waterfalls, swimming pools, an outdoor theater and views of the Mediterranean Sea. Architect Antti Lovag had the bubbles built out of iron bars covered with wire web and concrete, and then coated with a mix of fiberglass and plastic.1.Which building involves a visual trick?A.Cube Houses.B.Wonder Works.C.Guangzhou Opera House.D.Bubble Palace.2.What inspired the design of Zaha Hadid?A.Trees in a forest.B.A laboratory in a villa.C.A concept on habitat.D.A geographic phenomenon.3.Where is the smallest building of the four located?A.In China.B.In France.C.In Netherlands.D.In the USA.At first glance, 15-year-old Kenan Pala seems like a typical teenager, playing video games with his friends, but he also loves finance and economics and invests in the stock (股票) market. He founded Kids4Community, a nonprofit offering volunteer projects for kids, when he was just 12.The idea came out of his family’s experience. Pala’s parents came to the U.S. from Turkey in 1998 and founded a company. “We started very little here,” said Pala’s mother. “But for the help we got along the way, we wouldn’t have been where we are.” The Palas wanted their children to live by this lesson, so they encouraged them to give back to the community.Anyone can donate with Kids4Community, but its events are intended for kids. Pala’s organization aims to boost young people’s involvement in community efforts because many organizations don’t let children volunteer.Last month, Kids4Community volunteers made 2,000 hygiene kits containing shampoo, toothbrushes, toothpaste, and other supplies. Kids4Community organizes the event annually and distributes the kits to the needy through Christmas Day. In fall, the group’s efforts are focused on disaster victims. Over the years, it has made care packages for survivors of earthquakes and Hurricanes.Another key focus is homelessness — an issue that has taken on particular significance. Years ago, Pala was jogging along the beach when he came across a sickly baby seal (海豹), surrounded by people who were caring for it and calling for help. “Hours later, I saw a homeless person, also sick and needing help, but people were just ignoring him,” Pala said. Now, Kids4Community organizes initiatives both to meet physical needs of the homeless and give them a sense of dignity and hope.In the coming years, Pala wants to expand Kids4Community’s reach beyond San Diego and perhaps beyond California.4.What does the Pala family lesson convey?A.Responsibility.B.Forgiveness.C.Gratitude.D.Struggle. 5.What does Kids4Community mainly work on in autumn?A.Disaster relief.B.Supplies delivery.C.Disaster forecast.D.Supplies production.6.Why is Pala’s experience with the seal mentioned?A.To advocate wildlife conservation.B.To launch the initiatives for the homeless.C.To praise the warm-hearted people.D.To account for his attention to homelessness. 7.Which of the following best describes Pala?A.Disciplined and reliable.B.Committed and consistent.C.Insightful and intelligent.D.Public-spirited and enterprising.Joyce Loaiza lives alone, but when returning to her apartment at a senior community, she often has a chat with a friendly female voice. The 81-year-old is among the first in the United States to receive the robot ElliQ made by Intuition Robotics, which has been the only device using artificial intelligence specifically designed to address loneliness of the old.Looking like a small table light, the device has an eyeless, mouthless head. It remembers each user’s interests and their talks, helping create a special experience with each new discussion, which can be as deep as the meaning of life or as light as a small joke. “She’ll make comments like, ‘I would go outside if I had hands, but I can’t hold an umbrella,’” said Loaiza. ElliQ also plays music and provides spiritual sayings. It leads exercises, asks about the owner’s health, and gives reminders to take medicines and drink water. It can also support video calls and contact family, friends, or doctors in an emergency.The average user interacts with ElliQ more than 30 times a day and more than 90 percent report lower levels of loneliness, Intuition Robotics CEO Dor Skuler said.Brigham Young University professor Julianne Holt-Lunstad, who studies the effects of loneliness on health, worries that a device like ElliQ might have short-term helpful effects but it could make people less likely to seek human contact. She noted that the difficult feeling ofloneliness should push people to reconnect socially.Skuler and state officials agreed that ElliQ is not an alternative to human contact. But some older people cannot leave home or do not have many friends. Charlotte Taylor, director of an Area Agency on Aging, said Covid-19 left many older people more disconnected. Her agency has provided 300 ElliQs which, she believes, help the situation. She said, “People generally like her and she makes them smile.”8.What can we infer from Loaiza’s comments on ElliQ?A.It sometimes fails to be of any help.B.It is humorous and has the human touch.C.Some of its comments make no sense.D.It shows an interest in the outside world. 9.What concerns Holt-Lunstad about ElliQ?A.Its inefficiency to ease loneliness.B.Its failure to push people to reconnect.C.Its potential for being addictive.D.Its replacement for human interactions. 10.How does Taylor find ElliQ?A.Novel.B.Popular.C.Satisfying.D.Advanced. 11.What can be a suitable title for the text?A.Chatty Robot Helps Seniors Fight Loneliness B.AI-based Device Is to Dominate Elders’ LifeC.ElliQ: a Revolutionary Innovation in AI Field D.ElliQ: a Remarkable Assistant after Covid-19Even minor changes in behavior can have a positive environmental impact. Therefore, it is suggested to remove or reduce single-use plastic bags from your shopping trips, because the bags break down slowly, causing them to linger in landfills. But how long does a plastic bag really stick around?The Center for Biological Diversity estimates that it takes a bag roughly 1000 years to break down. The term “break down” is a little misleading, though. Plastic ends up photodegrading (光降解) from ultraviolet (紫外线) radiation because the majority of microorganisms cannot eat it. And even after the bags degrade, the micro-plastics they leave behind may still harm the environment.While 1000 years seems long, it is only an estimate. Since the invention of plastic bags inthe 1950s or so, humankind has never actually seen the substance break down in real time. Instead, scientists have adopted respirometry tests (呼吸运动测量法), which helps estimate the breakdown rate of an organic substance by measuring the CO2 that the microorganisms produce when breaking down the material. When an organic substance, such as food waste, is present, CO2 levels rise, which allows scientists to estimate the rate of breakdown. However, because plastic bags don’t produce any CO2,—microorganisms aren’t eating them, the bags are just sitting there. If buried in a landfill and sheltered from ultraviolet light, plastic bags will last a very long time.Bags have an impact on the environment beyond just their removal. It takes fossil fuels to make bags; one estimate puts this amount at 12 million barrels (桶) of oil annually. And after a bag has served its purpose in a consumer’s hands, it may then enter the food chain for wildlife. Plastic that builds up along the food chain is consumed by creatures like birds and fish.While reducing the use of plastic bags is a good idea, choosing a cloth bag might not be the habit that will help the environment the most. The carbon footprint left by the cloth bags must be countered by thousands of uses.12.What does the underlined word “linger” in Paragraph 1 probably mean?A.Reproduce.B.Integrate.C.Emerge.D.Last.13.What do we know about the breakdown of plastic bags?A.Its duration of 1000 years is an overestimate.B.Exposure to ultraviolet light is essential to it.C.Respirometry tests effectively estimate its rate.D.The level of CO2 released during it usually rises.14.What is Paragraph 4 mainly about?A.The multiple environmental costs of plastic bags.B.The consumption of fuels for plastic bag production.C.The harm of plastic bags to the food chain for wildlife.D.The challenge of removing plastic bags from the ecosystem.15.Which of the following is proposed according to the last paragraph?A.Declining plastic shopping bag offers.B.Reducing the production of plastic bags.C.Reusing the same cloth bag repeatedly.D.Switching from plastic bags to cloth ones.If you’re struggling to save money, you’re not alone. Less than half of Americans have enough emergency savings to cover at least three months’ expenses. 16 . Here are several practical ways to help you spend less. 17If you want to determine how to save money, you need to figure out how to spend less of it. Many bank statements include categorized spending reports. These can provide a good sense of where your money has been going and identify opportunities to reduce your costs. If you’re married, making this review process a shared task can help cut expenses and increase savings. Be a strategic grocery shopperWhile you’ll need to keep buying groceries despite higher prices, you can make an effort to avoid throwing away unused food. As you make your grocery list, think about what ended up being thrown away last time. Those who made a shopping list in advance throw away less food. 18 Break up with brand namesA comparison of ingredients and labels on things like noodles may show affordable alternatives to be just as nutritious and high-quality as the top-shelf ones. 19 . Try to find more affordable alternatives for any such brand-name household items you may be buying. Challenge yourself to a spending freezeOne way that can be effective in taking control of your finances is a spending freeze, during which you cut all unnecessary spending for a set period. 20 . The extra money you’ll have at the end of the month can be added to savings or used to pay down debt.A.Review your spending habitsB.Compare other banking optionsC.So take extra time to plan out your upcoming mealD.Saving money isn’t easy these days but it’s not impossibleE.Prices remain high on expenses such as housing, food and transportationF.This gives you a sense of just how much you’re spending on nonessentialsG.The same concept may apply to non-food items such as paper and hand soap二、完形填空On Sept. 17, 2022, a father and son set out to begin the first of three legs of the Ironmancompetition in Cambridge, Maryland. Jeff Agar, 59, and his son, Johnny Agar, 28, weren’t the 21 participants. Johnny has cerebral palsy (脑瘫), resulting in his difficulty walking and muscle weakness. Jeff would act as his arms and legs, 22 carrying the weight of his son throughout the race. To 23 as completion, competitors must complete a(n) 24 140 miles of swimming, bicycling and running in under 17 hours.From the day Johnny was born, Jeff and his wife refused to let their son be 25 by disability. 26 to show Johnny that he could pursue his dream of being an athlete, when he was 15 years old, they 27 him up with my Team Triumph, an organization that helps kids with 28 engage in endurance (耐力) sports.Johnny became 29 to racing, and Jeff wanted to be a part of it. Jeff began waking up at 4 am to run while 30 Johnny in a racing chair. Every morning, he 31 himself to run increasingly longer distances.After 16 hours, 55 minutes and 35 seconds, the father and son 32 the finish line together. As the crowd 33 and congratulated Johnny, Jeff kept a low 34 . “He didn’t want attention to his finish line moment,” says Johnny. “He wanted it to be 35 .”21.A.distinct B.typical C.ambitious D.amateur 22.A.consciously B.anxiously C.hopefully D.literally 23.A.qualify B.emerge C.serve D.continue 24.A.impressive B.smooth C.frightening D.exhausting 25.A.given away B.turned down C.taken on D.held back 26.A.Forced B.Discouraged C.Determined D.Prepared 27.A.signed B.cheered C.lifted D.brought 28.A.experiences B.difficulties C.capacities D.disabilities 29.A.sensitive B.attracted C.limited D.important 30.A.pushing B.comforting C.displaying D.treating 31.A.permitted B.warned C.drove D.persuaded 32.A.drew B.left C.spotted D.crossed 33.A.thanked B.surrounded C.encountered D.disturbed 34.A.voice B.rate C.profile D.grade 35.A.theirs B.mine C.yours D.his三、语法填空阅读下面材料, 在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

云南省昆明市第一中学2024届高三第七次高考仿真模拟数学试题

云南省昆明市第一中学2024届高三第七次高考仿真模拟数学试题

一、单选题二、多选题1. 已知与均为单位向量,其夹角为,则命题:是命题:的( )A .充分不必要条件B .必要不充分条件C .充分必要条件D .既不是充分条件也不是必要条件2. 过点作两条直线与抛物线相切于点A ,B,则弦长等于( )A .8B .6C .4D .23. 直线的方程为,当原点到直线的距离最大时,的值为( )A.B.C.D.4. 已知向量,则( )A.B.C.D.5. 若,则A.B.C.D.6. 若,则的最小值为A .8B .6C .4D .27. 设,则有( )A.B.C.D.8.设函数若函数有两个零点,则实数m 的取值范围是( )A.B.C.D.9. 的展开式中,下列结论正确的是( )A .展开式共7项B .项系数为280C .所有项的系数之和为2187D .所有项的二项式系数之和为12810.若过作的垂线,垂足为,则称向量在上的投影向量为.如图,已知四边形均为正方形,则下列结论正确的是()A .在上的投影向量为B .在上的投影向量为C .在上的投影向量为D .在上的投影向量为11. 围棋是古代中国人发明的最复杂的智力博弈游戏之一.东汉的许慎在《说文解字)中说:“弈,围棋也”,因此,“对弈"在当时特指下围棋,现甲与乙对弈三盘,每盘赢棋的概率是,其中甲只赢一盘的概率低于甲只赢两盘的概率.甲也与丙对弈三盘,每盘赢棋的概率是,而甲只赢一盘的概率高于甲只赢两盘的概率.若各盘棋的输赢相互独立,甲与乙、丙的三盘对弈均为只赢两盘的概率分别是和,则云南省昆明市第一中学2024届高三第七次高考仿真模拟数学试题云南省昆明市第一中学2024届高三第七次高考仿真模拟数学试题三、填空题四、解答题以下结论正确的是( )A.B.当时,C .,使得对,都有D .当时,12. 关于复数(i 为虚数单位),下列说法正确的是( )A.B .在复平面上对应的点位于第二象限C.D.13. 已知,则___________.14. 曲线在点处的切线方程为___________.15. 已知为常数)的展开式中各项系数之和为1,则展开式中的系数为___.16. 某企业为检查一条流水线的生产情况,随机抽取该流水线上的件产品作为样本测出它们的长度(单位:),长度的分组区间为、、、,.由此得到样本的频率分布直方图,如图所示.(1)在上述抽取的件产品中任取件,设为长度超过的产品数量,求的分布列和数学期望.(2)从该流水线上任取件产品,设为长度超过的产品数量,求的数学期望和方差.17.如图,在直三棱柱中,,D 是棱的中点.(1)求证:平面平面;(2)求平面与平面所成锐二面角的余弦值.18. 已知函数.(1)求函数在上的最大值和最小值;(2)在中,角所对的边分别为,满足,,,求的值.19. 如图,已知曲线及曲线.从上的点作直线平行于轴,交曲线于点,再从点作直线平行于轴,交曲线于点,点的横坐标构成数列.(1)试求与之间的关系,并证明:;(2)若,求的通项公式.20. 甲、乙两人进行乒乓球比赛,规定比赛进行到有一人比对方多赢局或打满局时比赛结束.设甲、乙在每局比赛中获胜的概率均为,各局比赛相互独立,用表示比赛结束时的比赛局数.(1)求双方打满四局且比赛结束,甲获胜的概率;(2)求的分布列和数学期望.21. 如图,三棱柱中,底面,,,,为侧面的对角线的交点,为棱的中点.(1)求证:平面;(2)求直线与平面所成角的正弦值.。

昆明民办初中排名一览表

昆明民办初中排名一览表

昆明民办初中排名一览表昆明民办初中是昆明市的一所非公办初中学校,由民间组织或个人举办,其办学方式和课程设置与公办初中有所不同。

昆明市的民办初中数量众多,因此对于家长和学生来说,了解各个民办初中的排名情况是十分重要的。

下面将为大家介绍昆明市民办初中的排名一览表。

一、昆明市民办初中排名一览表1. 昆明市第一中学2. 昆明市第二中学3. 昆明市第三中学4. 昆明市第四中学5. 昆明市第五中学6. 昆明市第六中学7. 昆明市第七中学8. 昆明市第八中学9. 昆明市第九中学10. 昆明市第十中学二、昆明市民办初中排名一览表解读1. 昆明市第一中学:作为昆明市民办初中的领军学校,昆明市第一中学以其优秀的教育质量和卓越的教学成果受到广大家长和学生的认可和赞誉。

学校秉承“德智体美劳全面发展”的办学理念,注重培养学生的综合素质和创新能力。

2. 昆明市第二中学:昆明市第二中学在昆明市民办初中中排名居第二位,学校注重学生的学术能力培养,提供优质的教学资源和良好的学习环境。

学校积极开展各类学科竞赛和课外活动,培养学生的综合素质和团队合作精神。

3. 昆明市第三中学:昆明市第三中学是一所具有较高声誉的民办初中学校,学校注重学生的全面发展,培养学生的创新思维和实践能力。

学校拥有一支高素质的教师队伍和先进的教学设施,为学生提供良好的学习条件和发展平台。

4. 昆明市第四中学:昆明市第四中学在昆明市民办初中中排名居第四位,学校注重学生的个性发展和兴趣培养,提供多样化的课程和活动。

学校积极推行素质教育,培养学生的综合素质和创新能力。

5. 昆明市第五中学:昆明市第五中学是一所综合性的民办初中学校,学校注重学生的学科知识和实践能力培养。

学校拥有一支高水平的教师队伍和先进的教学设施,为学生提供良好的学习环境和发展平台。

6. 昆明市第六中学:昆明市第六中学是一所具有较高声誉的民办初中学校,学校注重学生的创新思维和实践能力培养。

学校积极推行素质教育,培养学生的综合素质和团队合作精神。

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云南省昆明市第一中学
作者:赵露
来源:《课堂内外·创新作文高中版》2016年第11期
试题展示>>
阅读下面的材料,根据要求写一篇不少于800字的文章。

(60分)
在各种P图软件盛行的今天,网络和各种社交平台上出现了许多漂亮而相似的面孔。

这种“网红脸”图片只需“一键美颜”或几个简单步骤就能美化,却缺失了真我;简单便捷的美化大行其道,却饱受诟病。

与此相反,摄影师小李却是先拍摄黑白照片,又用类似工笔画的手法在电脑上一层层上色,每幅照片的后期处理大约都要二十多天,他从不省去任何一个步骤,不怕麻烦与复杂,一笔一笔地“画”出了极具中国古典韵味的作品。

他走了一条很窄的路,却独树一帜。

要求:综合材料内容及含意,选好角度,确定立意,明确文体,自拟标题,不要套作,不得抄袭。

写作导引>>
这是一道故事型材料作文题。

材料描述了在各种P图软件盛行的今天,摄影师小李却不为所动,反潮流而行,走出了一条独树一帜的成功之路。

小李的原型,在现实中是一位年轻的孙姓摄影师。

他的作品惊艳了许多人,征服了许多人。

这次作文材料取于现实生活,呈现出鲜明的对比:流行便捷失去真我,沉静踏实不怕麻烦却能独树一帜。

考生阅读完材料,很容易抓住其中的关键词“独树一帜”,但“独树一帜”也是因人而异的,每个人都有自己独特的地方,世间有多少人,就有多少“独树一帜”。

所以审题的关键在于,小李的“独树一帜”是怎样的?是从何而来的?如果审题只关注关键词,而忽略材料中各种要素的联系,很容易犯“盲人摸象”“断章取义”的毛病,将“独树一帜”孤立地作为立意要点,空泛而谈。

反观近年的高考全国卷材料作文的写作要求,从原先的“选好角度,确定立意”变为“综合材料内容及含意,选好角度,确定立意”,其实这正是对自选角度的宽泛无界做出了限制,更注重材料中要素与结果之间的因果逻辑或条件逻辑,无形中让立意变窄,以免考生以关键词为起点,漫无边际地发散。

这样的变动,提升了对考生的思维要求,体现出高考改革中注重思维质量的趋向。

因而命制这道材料作文时,笔者有意将材料的中心含义与常规的“匠心”“坚持”做了区分,以提醒考生勿要滑入套板反应中。

捕捉到材料中的一点信息就盲目动笔的方法不可取,做好透彻思考、综合考虑才动笔方为可行之道。

在审题时,考生还会注意到“流行”“失去真我”“不怕麻烦与复杂”“独树一帜”这些关键词。

考生要理清这些关键词之间的逻辑联系,使话题集中。

写作时,可从以下几方面立意:
1. 以沉静的心,走务实之路;
2. 认真踏实,方能做独特的自我;
3. 抵抗捷径,拒绝浮躁。

佳作展评>>
点点滴滴方是真
文/ 夏璇
滴水穿石饱含了内心坚毅的力量,一刀一笔刻出的大同佛像凝聚着对佛家的信仰。

如今的人们,若失去了真我,便仅如行尸走肉一般,魂随风飘散,而找不到真正的归宿。

守住真我,需要点点滴滴的积累,也必备一颗坚定自我的心。

摄影师小李用类似工笔画的手法,用心努力地“画”出了独树一帜的极具中国古典韵味的作品,让人感受到真我的魅力。

那是一针一线编制的星宿传奇。

深夜,灯下还有一个人未眠,他手中柔滑的丝绸像他的内心一样纯净;六十年的坚持不懈,他守住了真我。

在上海的一幢旧宅里,栖身着一位九十二岁高龄的旗袍大师。

在六年前,他刚刚放下手中的针线。

从上世纪九十年代起,他便随师父学做旗袍,辛苦的时候一天都不能合眼,手上的茧坚硬如铁,但他依然一针一线认真地任丝线在蕾丝中穿梭、跳跃。

科技日渐发达,市场上的旗袍渐渐多以机器生产为主,这样做旗袍不仅高效,而且针脚紧密。

他的徒弟和家人都劝他改为机织,但他不愿意,因为他放不下多年来对旗袍的深情,他说:“若不是亲手缝制,那一切服饰都失去了最真的价值。


是的,在旗袍上,我们看到了他用针线守住的真我。

这位匠人也选了一条窄窄的道路,但独树一帜。

点点滴滴的辛劳成就了他的真我。

美丽的苏州是昆曲的发源地之一,萦绕在耳边的乐曲让人心旷神怡,著名的《新白娘子传奇》也来自于《白蛇传》的章节,那里坚持传承的昆曲名家数不胜数,他们的剧本都是用心编写的,虽然没有电视剧那么波澜起伏,但一直以来他们都保留着对昆曲的那一份热情。

曹文轩坚守独特的文风,他离不开心里童年的那片田野,坚持用纯净的文学来成就真我,一笔一画留住的是对文学的信仰。

守住真我,点点滴滴创造生命的奇迹,让自我的力量成为远航的动力。

摄影师小李用自己一层一层的涂染为照片保留了独特的生机,他不随波逐流的性情成为了他成功路上的力量。

成功之路是没有捷径的,守住真我并一路向前才是独具魅力的。

我们也应拥有屈原那种“虽体解吾犹未变兮,岂余心之可悲”的精神,保留真我,独树一帜,积累点点滴滴,创造辉煌!
点评:本文主旨明确,紧扣材料立意:“坚守真我,彰显传统元素,独具魅力。

”事实论据令人信服,从旗袍制作到昆曲逐层深入,展示了传统文化的独特魅力,论据翔实具体,颇具特色,论证简洁有力,语言表达自然灵动,令人耳目一新。

文章既突出地体现了考场作文的特质,又充分地展示了作者的个性:独具慧眼地发现了传统精品中独特的内涵,列举事例娓娓道来,水到渠成,巧妙点题,行文规范而不失灵动。

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