阶段检测卷一答案(可编辑word)
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阶段性检测卷一(第1~4章)(时间:35分钟满分:46分)一、选择题(本大题共6小题,每小题3分,共18分。
每小题给出的四个选项中,只有一个是正确的)1.(2020·镇江中考)以图中哪一个物体为参照物,正在下降的跳伞员是静止的()A.地面B.地面上行驶的汽车C.降落伞D.正在上升的无人机2.下列关于光现象的说法中正确的是()A.日偏食是由于光发生折射而形成的B.我们能看到鲜艳的黄色的花是因为花能反射黄色的光C.夏天雨过天晴,我们看到路边小草上的“一滴露珠也能折射出太阳的光辉”其实是光的反射现象D.当观众的目光都投向领奖者时,光的传播方向是从观众到领奖者3.(2020·仙桃中考)下列关于声现象的说法中,正确的是()A.吹奏长笛时,笛声是由空气柱的振动产生的B.声音的传播不需要介质,能在真空中传播C.声音在空气中的传播速度大于在水中的传播速度D.“震耳欲聋”主要描述声音的音调高4.(2020·内江中考)受新冠疫情的影响,春季开学前,许多地区开展了“停课不停学”的网课学习。
小王戴着中间薄、边缘厚的眼镜进行网课学习,关于小王的眼睛及眼镜的说法,正确的是()A.小王是远视眼B.小王的眼镜是凹透镜C.小王的视网膜上成的像是放大的D.小王的视网膜上成的像是虚像5.(2020·恩施州中考)一盏探照灯的灯光射向水池,如图所示,在没有水的池底C处形成一个光斑。
在逐步注水的过程中,B处的人看到池底的光斑会()A.在原地不动B.先向左移再向右移C.向左移动D.向右移动6.用如图的装置做“探究凸透镜成像规律”的实验时,已知凸透镜的焦距为10 cm,下列说法正确的是()A.烛焰在如图所示的位置时,成像特点与照相机成像特点相同B.若将蜡烛移到光具座42 cm刻度处时,烛焰所成的像是倒立、放大的C.若将蜡烛移到光具座30 cm刻度处时,烛焰所成的像是等大的D.若将蜡烛从光具座30 cm刻度处向远离凸透镜方向移动时,烛焰所成的像将逐渐变大二、填空题(每空1分,共7分)7.(2020·河池中考)如图所示,刻度尺的分度值为mm;铅笔的长度为cm。
学校 班级 姓名 考场 座位号密封装订 线密 封 线 内 不 要 答 题2020—2021学年度第一学期12月份四校阶段性检测高一年级 英语 试卷一、听力(共20分)第一节:(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A 、B 、C 三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What kind of clothes does the woman like? A .Formal clothes.B .Casual clothes.C .Popular clothes.2.What will the man do tonight? A .Buy flowers.B .Phone his mother.C .Have dinner with his mother.3.What is the woman likely to do?A .Look for a street.B .Take a flight.C .Get on the bus.4.What is the man afraid of?A .Pain in his neck.B .Running the marathon.C .Having to stop training. 5.What does the man think of the smartphone? A .It is expensive.B .It is not cool.C .It deserves the money.第二节:(共10小题:每小题1.5分,满分15分)听下面几段材料。
每段材料后有几个小题,从题中所给的A ,B 、C 三个选项中选出最佳选项,并在试卷的相应位置。
听每段材料前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
每段材料读两遍。
马鞍山二中2021届高一上学期第一次阶段性检测化学试卷命题:王华龙审题:陶金圣可能用到的相对原子质量:H 1 C 12 N 14 O 16 S 32 Cl 35.5 K 39 Ca 40一、选择题(每小题只有一个选项符合题意,每题3 分,共48分)1.假如你家里的食用芝麻油不当心混入了部分水,利用你所学的学问,接受最简便的分别方法是2.下列括号中的分别方法运用得当的是A.植物油和自来水(蒸馏) B.水溶液中的食盐和碘(分液)C.自来水中的杂质(萃取) D.CaCO3和CaCl2(溶解、过滤、蒸发)3.现有下列四种因素:①温度和压强②所含微粒数③微粒本身大小④微粒间的距离,其中对气体物质体积有显著影响的是A.①②③ B.①③④ C.①②④ D.①②③④4.下列物质中,在标准状况下,体积最大的是A.8 g H2 B.48 g O2 C.71 g Cl2 D.1 000 g H2O5.有一份气体样品的质量是14.2 g,体积是4.48 L(标准状况下),该气体的摩尔质量是A.28.4 B.28.4 g / mol C.71 D.71 g / mol6.为了除去粗盐中的Ca2+、Mg2+、SO2-4及泥沙,得到纯洁的NaCl,可将粗盐溶于水,然后在下列操作中选取必要的步骤和正确的操作挨次①过滤②加过量NaOH溶液③加适量盐酸④加过量Na2CO3溶液⑤加过量BaCl2溶液A.⑤④①②③ B.④①②⑤③ C.⑤②④①③ D.①④②⑤③7.下列叙述正确的是A.1 mol H2O的质量为18 g/mol B.3.01×1023个SO2分子的质量为32 gC.CH4的摩尔质量为16 g D.标准状况下,1 mol任何物质体积约为22.4 L8.下列化学试验操作中,一般状况下不能相互接触的是A.用胶头滴管向试管滴液体时,滴管尖端与试管内壁B.过滤操作中,漏斗颈与烧杯内壁C.分液操作中,分液漏斗颈与烧杯内壁D.过滤操作中,玻璃棒与三层滤纸9.相等物质的量的CO和CO2,下列比较中正确的是①所含的分子数目之比为1:1 ②所含的氧原子数目之比为1:2③所含的碳原子数目之比为1:1 ④所含的原子总数目之比为2:3A.①② B.②③ C.①②③ D.①②③④10.试验室从碘水中提取碘的操作,正确的是A.分液、蒸馏 B.过滤、蒸发 C.萃取、分液 D.萃取、分液、蒸馏11.除去下列物质中的杂质(括号内为杂质),所选用的试剂及操作方法均正确的一组是选项待提纯的物质选用的试剂操作的方法A CaO(CaCO3) 水溶解、过滤、结晶B Cu(CuO) 稀盐酸溶解、过滤、洗涤、干燥C CuSO4(H2SO4) 氢氧化钠溶液过滤D CO(H2) 氧气点燃12.a mol H2SO4中含有b个氧原子,则阿伏加德罗常数可以表示为A.ab4 B.ba4 C.abmol-1 D.ab4mol-113.下列条件中,两种气体所含原子数肯定相等的是A.同质量、不同体积的N2和CO B.同温度、同体积的H2和N2C.同体积、同密度的C2H6和NO D.同压强、同体积的N2O和CO214.同温同压下,相同体积的甲、乙两种气体的质量比为17:14,若乙气体是CO,则甲气体可能为A.H2SB.HClC.NH3D.Cl215.在同温、同压下,A容器的氮气和B容器的氨气中,若它们所含的原子数相等,则这两个容器的体积之比是A.2:1 C.2:3 B.1:2 D.1:316.在相同状况下,一个空瓶,若装满O2称其质量为36 g,若装满CO2称其质量为42 g,若装满A气体,称其质量为52 g,则A的相对分子质量是A.16 B.32 C.64 D.128二、填空题(共44分)17.(1) N2、CO2、SO2三种气体的物质的量比为1∶1∶1时,它们的分子个数比为________;质量比为________;同温、同压下体积之比为________。
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注:资料封面,下载即可删除江苏省泰州中学高一年级第一次质量检测数学试卷一、单项选择题: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.用“book ”中的字母构成的集合中元素个数为( ) A.1B.2C.3D.42.二次函数2416y x =-的零点为( ) A.()20±,B.2±C.()40±,D.4±3.能正确表示集合{|02}M x R x =∈≤≤和集合{}20|N x R x x =∈-=关系的Venn 图是( )A. B. C. D.4.命题“存在实数x ,使1x >”的否定是( ) A.对任意实数x ,都有1x > B.存在实数x ,使1x ≤ C.不存在实数x ,使1x ≤ D.对任意实数x ,都有1x ≤5.“1a =”是“关于x 的方程230x x a -+=有实数根”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6.若0a b <<,则下列不等式中不成立的是( ) A.11a b> B.22a b > C.a b >-D.11a b a>- 7.己知05x <<,()5y x x =-,则下列说法中正确的是( )A.y 的最大值为52 B .y 的最小值为52 C.y 的最大值为254D.y 的最小值为2548.若x A ∈,则1A x ∈,就称A 是具有伙伴关系的集合.集合11,0,,2,52M ⎧⎫=-⎨⎬⎩⎭的所有非空子集中具有伙伴关系的集合的个数为( ) A.1B.3C.7D.31二、多项选择题:共4小题,每小题5分,共20分.在每小题给出的四个选项中,有多项符合题目要求,全部选对的得5分,部分选对的得3分,有选错的得0分. 9.下列命题能表述“x R ∃∈,23x >”的有( ) A.有一个x R ∈,使得23x >成立 B.对有些x R ∈, 使得23x >成立 C.任选一个x R ∈,都有23x >成立 D.至少有一个x R ∈,使得23x >成立10.已知关于x 的不等式20ax bx c ++>的解集是1,22⎛⎫- ⎪⎝⎭,则下列结论中正确的是( ) A.0a >B.0b >C.0c >D.0a b c -+>11.下列不等式中恒成立的是( ) A.222(1)a b a b +--B.111a b ab + 4(5)x >-D.2ab ab a b+12.已知关于x 的不等式2260(0)kx x k k -+<≠,则下列说法中正确的是( ) A.若不等式的解集为3{}2|x x x ->-或,则25k =-B.若不等式的解集为1R,x x x k ⎧⎫∈≠⎨⎬⎩⎭,则6k =C.若不等式的解集为R ,则k <D.若不等式的解集为∅,则k ≥三、填空题:共4小题,每小题5分,共20分13.已知12a ≤≤,36b ≤≤,则32a b -的取值范围是______.14.已知x R ∈,集合{}23,,1A x x =-+,{}23,21,1B x x x =--+,且{3}AB =-,则A B =______.15.下列所给的各组p ,q 中,p 是q 的充分条件的有______,p 是q 的必要条件的有______.(填序号) ①:R p x ∈,:N q x ∈;②p :四边形是矩形,q :四边形是正方形;③p :方程()200ax bx c a ++=≠有两个不等的实数解,2:40q b ac ->;④:0p ab =,22:0q a b +=. 16.已知0x >,0y >,且3622x y+=.若247x y m m +>-恒成立,则实数m 的取值范围为______. 四、解答题:共6小题,共70分.解答时写出必要的文字说明、证明过程或演算步骤 17.(10分)已知20p x ->:,:40q ax ->,其中a R ∈且0a ≠.(1)若p 是q 的充分不必要条件,求实数a 的取值范围; (2)若p 是q 的必要不充分条件,求实数a 的取值范围. 18.(12分)解下列不等式: (1)251360x x +-< (2)21202x x -++< (3)5132x x +≤- (4)()()()12253x x x x --<-+19.设集合{}2320A x x x =-+=,(){}222(1)50B x x a x a =+++-=.(1)若{2}A B =,求实数a 的值;(2)若AB A =,求实数a 的取值范围;20.(12分)给出如下三个条件:①充分不必要;②必要不充分;③充要.请从中选择一个条件补充到下面的横线上.已知集合14{|}P x x =≤≤,1{}1|S x m x m =-≤<+,则x P ∈是x S ∈的条件.若存在实数m ,求出m 的取值范围;若不存在,请说明理由.21.为了鼓励大学毕业生自主创业,某市出台了相关政策,由政府协调,企业按成本价提供产品给大学毕业生自主销售,成本价与出厂价之间的差价由政府承担.某大学毕业生按照相关政策投资销售一种新型节能灯.已知这种节能灯的成本价为10元/台,出厂价为12元/台,每月的销售量y (台)与销售单价x (元)之间的关系近似满足一次函数10500y x =+.(1)设他每月获得的利润为W 元,写出W 与X 之间的函数关系式.(2)根据相关部门规定,这种节能灯的销售单价不得高于25元.如果他想要每月获得不少于3000元的利润,那么政府每个月为他承担的总差价的取值范围是多少?22.(12分)已知集合P 中的元素有()*3n n N ∈个且均为正整数,将集合P 分成元素个数相等且两两没有公共元素的三个集合A ,B ,C ,即P AB C =,A B =∅,A C =∅,B C =∅,其中{}12,,,n A a a a =⋅⋅⋅,{}12,,,n B b b b =⋅⋅⋅,{}12,,,n C c c c =⋅⋅⋅.若集合A ,B ,C 中元素满足12n c c c <<,k k k a b c +=,1,2,,k n =⋅⋅⋅,则称集合P 为“完美集合”,(1)若集合3{}12P =,,,1,23456{}Q =,,,,,判断集合P 和集合Q 是否为“完美集合”?并说明理由. (2)若集合1356}4{P x =,,,,,为“完美集合”,求正整数x 的值.江苏省泰州中学高一年级第一次质量检测数学试卷(答案)一、单项选择题: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.用“book ”中的字母构成的集合中元素个数为( ) A.1 B.2 C.3 D.4【答案】C2.二次函数2416y x =-的零点为( ) A.()20±, B.2±C.()40±,D.4±【答案】B3.能正确表示集合{|02}M x R x =∈≤≤和集合{}20|N x R x x =∈-=关系的Venn 图是( )A. B. C. D.【答案】B4.命题“存在实数x ,使1x >”的否定是( ) A.对任意实数x ,都有1x > B.存在实数x ,使1x ≤ C.不存在实数x ,使1x ≤ D.对任意实数x ,都有1x ≤ 【答案】D5.“1a =”是“关于x 的方程230x x a -+=有实数根”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【答案】A提示 若方程x 的方程230x x a -+=有实数根,则940a ∆=-≥, 即94a ≤,所以“1a =”是“关于x 的方程230x x a -+=有实数根”的充分不必要条件 6.若0a b <<,则下列不等式中不成立的是( ) A.11a b> B.22a b > C.a b >-D.11a b a>- 【答案】D提示 因为0a b <<,所以0b ->,从而0a a b <-<,所以11a b a<-. 7.己知05x <<,()5y x x =-,则下列说法中正确的是( )A.y 的最大值为52 B .y 的最小值为52 C.y 的最大值为254D.y 的最小值为254【答案】C 8.若x A ∈,则1A x ∈,就称A 是具有伙伴关系的集合.集合11,0,,2,52M ⎧⎫=-⎨⎬⎩⎭的所有非空子集中具有伙伴关系的集合的个数为( ) A.1 B.3C.7D.31【答案】B提示 因为1M -∈,所以111M =-∈-;因为2M ∈,所以12M ∈. 因此,M 的所有非空子集中具有伙伴关系的集合有{}1-,1,22⎧⎫⎨⎬⎩⎭,11,,22⎧⎫-⎨⎬⎩⎭.二、多项选择题:共4小题,每小题5分,共20分.在每小题给出的四个选项中,有多项符合题目要求,全部选对的得5分,部分选对的得3分,有选错的得0分. 9.下列命题能表述“x R ∃∈,23x >”的有( ) A.有一个x R ∈,使得23x >成立 B.对有些x R ∈, 使得23x >成立 C.任选一个x R ∈,都有23x >成立D.至少有一个x R ∈,使得23x >成立 【答案】ABD10.已知关于x 的不等式20ax bx c ++>的解集是1,22⎛⎫- ⎪⎝⎭,则下列结论中正确的是( ) A.0a > B.0b > C.0c >D.0a b c -+>【答案】BC11.下列不等式中恒成立的是( ) A.222(1)a b a b +--B.111a b ab + 4(5)x >-D.2ab ab a b+【答案】ACD提示 对于A ,22222(1)(1)(1)0a b a b a b +---=-+-.对于B ,当0a <,0b <时,110a b +,10ab>.对于C 4=当且仅当1x =-时取“=”. 对于D ,当0a <,0b <时,0a b +<,左边0<,右边>0; 当0a >,0b >时,2a b ab +,所以2abab a b+.12.已知关于x 的不等式2260(0)kx x k k -+<≠,则下列说法中正确的是( ) A.若不等式的解集为3{}2|x x x ->-或,则25k =-B.若不等式的解集为1R,x x x k ⎧⎫∈≠⎨⎬⎩⎭,则k =C.若不等式的解集为R ,则6k <-D.若不等式的解集为∅,则k ≥ 【答案】ACD三、填空题:共4小题,每小题5分,共20分13.已知12a ≤≤,36b ≤≤,则32a b -的取值范围是______.【答案】[90]-,14.已知x R ∈,集合{}23,,1A x x =-+,{}23,21,1B x x x =--+,且{3}A B =-,则A B =______.【答案】{0,1,2,3,4}AB =--.15.下列所给的各组p ,q 中,p 是q 的充分条件的有______,p 是q 的必要条件的有______.(填序号) ①:R p x ∈,:N q x ∈;②p :四边形是矩形,q :四边形是正方形;③p :方程()200ax bx c a ++=≠有两个不等的实数解,2:40q b ac ->;④:0p ab =,22:0q a b +=. 【答案】.③ ①②③④ 16.已知0x >,0y >,且3622x y+=.若247x y m m +>-恒成立,则实数m 的取值范围为______. 【答案】(,3)(4,)-∞+∞提示由题意及基本不等式可得136132414(4)12(121222222y x x y x y x y x y ⎫⎛⎫⎛+=++=++⨯+=⎪ ⎪⎝⎭⎝⎭, 当且仅当32x =,6y =时取“=”,所以2127m m >-,解得4m >或3m <. 四、解答题:共6小题,共70分.解答时写出必要的文字说明、证明过程或演算步骤 17.(10分)已知20p x ->:,:40q ax ->,其中a R ∈且0a ≠.(1)若p 是q 的充分不必要条件,求实数a 的取值范围; (2)若p 是q 的必要不充分条件,求实数a 的取值范围.【解析】设命题p 对应的集合为{}20|A x x =->,即{}|2A x x =>. 命题q 对应的集合为{}40B x ax =->.(1)因为p 是q 的充分不必要条件,所以AB ,即0,42,a a>⎧⎪⎨<⎪⎩,解得2a >,故实数a 的取值范围为(2)+∞,(2)因为p 是q 的必要不充分条件,所以BA .①当0a >时,由B A ,得42a>,解得02a <<; ②当0a <时,显然不满足题意. 综上,实数a 的取值范围为(0)2,. 18.(12分)解下列不等式: (1)251360x x +-< (2)21202x x -++< (3)5132x x +≤- (4)()()()12253x x x x --<-+解:(1)23,5⎛⎫- ⎪⎝⎭(2)x <x > (3)[)13,3-(4)1x ≠19.设集合{}2320A x x x =-+=,(){}222(1)50B x x a x a =+++-=.(1)若{2}A B =,求实数a 的值;(2)若AB A =,求实数a 的取值范围;解:∵2320x x -+=,∴1x =或2x =,故集合2{}1,A =. (1)∵{2}AB =,∴2B ∈,代入B 中的方程,得24301a a a ++=⇒=-或3a =-.当1a =-时,2{}2B =-,,满足条件; 当3a =-时,{}2B =,满足条件. 综上,实数a 的值为-1或-3.(2)对于集合B ,()224(1)458(3)a a a ∆=+--=+. ∵AB A =,∴A B ⊆①当0∆<,即3a <-时,B =∅,满足条件; ②当0∆=,即3a =-时,{}2B =,满足条件; ③当0∆>,即3a >-时,{}12B A ==,才能满足条件, 则由根与系数的关系,得2122(a 1)12a 5+=-+⎧⎨⨯=-⎩,解得25,27,a a ⎧=-⎪⎨⎪=⎩矛盾. 综上,实数a 的取值范围是{}3a a -.20.(12分)给出如下三个条件:①充分不必要;②必要不充分;③充要.请从中选择一个条件补充到下面的横线上.已知集合14{|}P x x =≤≤,1{}1|S x m x m =-≤<+,则x P ∈是x S ∈的条件.若存在实数m ,求出m 的取值范围;若不存在,请说明理由.【解析】:若选择①,即x P ∈是x S ∈的充分不必要条件,则PS 则S ≠∅,即11m m -≤+,解得0m ≥,且11,14,m m -≤⎧⎨+≥⎩两个等号不同时成立,解得3m ≥,故3m ≥,即实数m 的取值范围是[3,)+∞. 若选择②,即x P ∈是x S ∈的必要不充分条件,则S P .当S ≠∅时,11m m ->+,解得0m <. 当S ≠∅时,11m m -≤+,解得0m ≥,且11,14,m m -≥⎧⎨+≤⎩两个等号不同时成立,解得0m ≤,所以0m =. 综上,实数m 的取值范围是(],0-∞.若选择③,即x P ∈是x S ∈的充要条件,则P S =,即11,14,m m -=⎧⎨+=⎩此方程组无解,则不存在实数m ,使x P ∈是x S ∈的充要条件21.为了鼓励大学毕业生自主创业,某市出台了相关政策,由政府协调,企业按成本价提供产品给大学毕业生自主销售,成本价与出厂价之间的差价由政府承担.某大学毕业生按照相关政策投资销售一种新型节能灯.已知这种节能灯的成本价为10元/台,出厂价为12元/台,每月的销售量y (台)与销售单价x (元)之间的关系近似满足一次函数10500y x =+.(1)设他每月获得的利润为W 元,写出W 与X 之间的函数关系式.(2)根据相关部门规定,这种节能灯的销售单价不得高于25元.如果他想要每月获得不少于3000元的利润,那么政府每个月为他承担的总差价的取值范围是多少?【解析】:(1)依题意可知每台的销售利润为()10x -元,每月的销售量为()10500x -+台,所以每月获得的利润W 与销售单价X 之间的函数关系式为()()1010500W x x =--+.(2)由每月获得不少于3000元的利润,得()()10105003000x x --+≥,化简得2608000x x -+≤,解得2040x ≤≤.又因为这种节能灯的销售单价不得高于25元,所以2025x ≤≤.设政府每个月为他承担的总差价为p 元,则()()121010*********p x x =-⋅-+=-+.由2025x ≤≤,得500201000600x ≤-+≤.故政府每个月为他承担的总差价的取值范围为]500[600,元22.(12分)已知集合P 中的元素有()*3n n N ∈个且均为正整数,将集合P 分成元素个数相等且两两没有公共元素的三个集合A ,B ,C ,即P A B C =,A B =∅,A C =∅,B C =∅,其中{}12,,,n A a a a =⋅⋅⋅,{}12,,,n B b b b =⋅⋅⋅,{}12,,,n C c c c =⋅⋅⋅.若集合A ,B ,C 中元素满足12n c c c <<, k k k a b c +=,1,2,,k n =⋅⋅⋅,则称集合P 为“完美集合”,(1)若集合3{}12P =,,,1,23456{}Q =,,,,,判断集合P 和集合Q 是否为“完美集合”?并说明理由.(2)若集合1356}4{P x =,,,,,为“完美集合”,求正整数x 的值. 【解析】:(1)对于集合3{}12P =,,,取{}1A =,{}2B =,{}3C =,满足P A B C =,A B =∅,A C =∅,B C =∅,且111a b c +=,所以集合P 为“完美集合”.若1,23456{}Q =,,,,为“完美集合”,则存在A ,B ,C , 使得Q A B C =,A B =∅,A C =∅,B C =∅.设A 中各元素的和为M ,B 中各元素的和为N ,C 中各元素的和为L ,则12345621M A L ++=+++++=且M A L +=,所以212L =,它不是整数, 故Q 不是“完美集合”.(2)因为1356}4{P x =,,,,,为“完美集合”,由(1)可知7x ≥. 根据定义可知n c 为P 中的最大元素,故2c x =.又C 中各元素的和为134561922x x L ++++++==,所以C 的另一个元素为192x -, 它是1,3,4,5,6中的某个数,所以x 的值可能为17,13,11,9,7.当7x =时,}7{6C =,,}3{1A =,,}4{5B =,,满足定义要求:当9x =时,}9{5C =,,}3{1A =,,}6{4B =,,满足定义要求;当11x =时,11{4}C =,,}5{1A =,,}6{3B =,,满足定义要求;当13x =或17x =时,13{3}C =,或17{1}C =,,3和1没办法写成两个元素的和, 故不满足定义要求.综上,x 的值为7,9,11。
济宁一中2017级高三年级第一学期阶段检测数学试题2019.10出题人:杨涛审题人:张善举、曹雷注意事项:1.本试卷分为第I卷(选择题)和第II卷(非选择题)两部分,共4页,满分150分,考试用时120分钟。
2.选择题答案请填涂在答题卡的相应位置,非选择题答案必须用黑色签字笔写在规定的答题区域内,否则不得分。
第Ⅰ卷(共60分)一、选择题:本大题共12小题,每小题5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.已知集合,,则的子集个数为()A.B.C.D.2.已知复数,则在复平面上对应的点所在象限是()A.第一象限B.第二象限C.第三象限D.第四象限3.在等差数列中,若,,则()A.B.C.D.4.下列函数中,既是奇函数又在定义域内递增的是()A.B.C.D.5.,则的值为()山东中学联盟A.B.C.D.6.已知向量,,则“”是为钝角的()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7.若向量,的夹角为,且,,则向量与向量的夹角为()A.B.C.D.8.函数在上单调递增,且关于对称,若,则的的取值范围是()A.B.C.D.9.设函数,若,()A.B.C.D.10.函数(其中,)的图象如图所示,为了得到的图象,只需把的图象上所有点()A.向左平移个单位长度B.向左平移个单位长度C.向右平移个单位长度D.向右平移个单位长度11.在中,是的中点,,点在上且满足,则等于()A.B.C.D.12.定义在R上的函数满足:,,则不等式的解集为()A.(3,+ ∞) B.(-∞,0)∪(3,+ ∞)C.(-∞,0)∪(0,+∞) D.(0,+∞)第Ⅱ卷(共90分)二、填空题:本题共4小题,每小题5分.13.若等差数列的前项和为,则_________.Sdzxlm14. 已知,,且共线,则向量在方向上的投影为__________.15.设,将的图像向右平移个单位长度,得到的图像,若是偶函数,则的最小值为__________.16.已知函数,则当函数恰有两个不同的零点时,实数的取值范围是.三、解答题:本题共6个大题,共70分.解答应写出文字说明、证明过程或演算步骤.17.(本小题满分10分)已知函数y=ax(a>0且a≠1)在[1,2]上的最大值与最小值之和为20,记.(1)求a的值;(2)证明;(3)求的值.18.(本小题满分12分)已知函数.(I)求函数的最小正周期和对称中心坐标;(II)讨论在区间上的单调性.19.(本小题满分12分)已知中,角的对边分别为,.(1)求角的大小;(2)若,求的面积.20. (本小题满分12分)设Sn为数列{an}的前n项和.已知an>0,a2n+2an=4Sn+3.(1)求{an}的通项公式;(2)设bn=1anan+1,求数列{bn}的前n项和.21. (本小题满分12分)某品牌电脑体验店预计全年购入360台电脑,已知该品牌电脑的进价为3 000元/台,为节约资金决定分批购入,若每批都购入x(x∈N*)台,且每批需付运费300元,储存购入的电脑全年所付保管费与每批购入电脑的总价值(不含运费)成正比(比例系数为k),若每批购入20台,则全年需付运费和保管费7 800元.(1)记全年所付运费和保管费之和为y元,求y关于x的函数;(2)若要使全年用于支付运费和保管费的资金最少,则每批应购入电脑多少台?22.(本小题满分12分)已知为实数,函数.(1)讨论函数的单调性;(2)若函数有两个不同的零点,①求实数的取值范围;②证明:.济宁一中2017级高三年级第一学期第二次阶段检测数学答案一、选择题。
2019-2020学年度第一学期第一阶段教学检测七年级语文试题(卷)注意事项:1.本试卷共8页,满分120分,时间120分钟;2.试卷中如有答题纸,请在答题纸上作答;如无答题纸,请直接在试卷上作答;一、积累和运用(17分)1.下列各组词语中,加点字的读音全都正确的一组是()(2分)A.抖擞.(sǒu)一霎.(shà)徘徊.(huí)絮.叨(xù)B.嘹.亮(liáo)贮.蓄(zhù)分歧.(qí)莅.临(wèi)C.瓜蒂.(dì)姊.妹(zǐ)梗.概(gěng)侍.弄(shì)D.粗犷.(kuǎng)捶.打(chuí)祷.告(dǎo)棱.镜(léng)2.下列各组词语中,汉字书写全都正确的一组是()(2分)A.朗润澄清瘫痪呼朋引伴B.酝酿骄媚稀疏翻来覆去C.安适凄冷憔粹各得其所D.宽敞晰沥烂漫花枝招展3.请从下面词语中选出最符合语境的词语填写在横线上。
(2分)(1)有人吐槽新旧两部《亮剑》中,秀芹含泪与李云龙最后(诀别离别分别)时,一个表现得大义凛然,一个却像撒泼!(2)母亲节那天,我给妈妈送了一束鲜艳的康乃馨,这让她(喜出望外忍俊不禁喜上眉梢)。
4.经典诗文默写。
(6分)(1),以观沧海。
水何澹澹,。
(曹操《观沧海》)(2),江春入旧年。
(王湾《次北固山下》)(3),小桥流水人家,古道西风瘦马。
(马致远《天净沙·秋思》)(4)牛背上牧童的短笛,。
(朱自清《春》)(5),从头到脚都是新的,他生长着。
(朱自清《春》)5.阅读下面的语段,完成后面的题目。
(3分)①提高道德品质的水准,是自我修养和后天环境教育共同一齐作用的结果。
②其中,自我修养是内因,后天环境教育通过内因能起作用。
③因而:社会中的每一个人,都必须自觉地加强道德品质的自我修养。
(1)第①句有语病,请将修改后的句子写在下面的横线上。
上海市育才中学2021级高三第一学期10月练习考试时间120分钟,满分140分I.Listening Comprehension25分Section A10分Directions:In Section A,you will hear ten short conversations between two speakers.At the end of each conversation,a question will be asked about what was said.The conversations and the questions will be spoken only once.After you hear a conversation and the question about it,read the four possible answers on your paper,and decide which one is the best answer to the question you have heard.1. A.To a bank. B.To a travel agency.C.To a drugstore.D.To Spain.2. A.He forgot to submit his paper. B.He misremembered the deadline.C.He didn't finish his paper on time.D.He couldn't focus his mind on the paper.3. A.She is a movie enthusiast. B.She prefers thrillers to romances.C.She doesn't like thrillers.D.She is not in the mood for any movie.4. A.Because she is not good at calculating.B.Because she hurried to finish the report.C.Because she is quite a careless person.D.Because she cited unconfirmed figures.5. A.Lily forgot to deliver discs to the man.B.The man failed to renew the address.C.Lily planned to visit the new dormitory.D.The discs might have been mailed to the former place.6. A.The woman doesnt enjoy the leftovers.B.The man is an excellent cook in the army.C.The man has invited many people for lunch.D.The man intentionally prepared much food.7. A.The man should be more diligent.B.Cramming is effective for an exam.C.Biology is indeed difficult to learn.D.The man shouldn’t have stayed up that late.8. A.Arrange to apply for another room.B.Make a complaint about her roommate.C.Ask her roommate to move out of the room.D.Change rooms with someone in the housing office.9. A.Helen’s hard work is rewarding.B.Helen is an accomplished job hunter.C.Helen always complains about her job.D.Helen is viewed as a model by the speakers.10. A.Every student should value Chinese culture.B.Chinese students are humble and reserved.C.He is deeply impressed by Chinese culture.D..Chinese students lack the courage to share ideas.Section B15分Directions:In Section B,you will hear two short passages and one longer conversation,and you will be asked three questions on each of the passages and the conversations.The passages and the conversations will be read twice,but the questions will be spoken only once.When you hear a question,read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Questions11through13are based on the following passage.11. A.To relocate to safer grounds. B.To migrate with the seasons.C.To seek more hunting grounds.D.To gather more food for survival.12. A.It once belonged to the North sea. B.It was drowned by the melt water.C.It was an island abundant in wildlife.D.It was unveiled by the modern fishermen.13. A.Polar ice caps will continue to melt at a rapid rate.B.The sea floor witnessed the rise and fall of the Europe.C.Doggerland is the birthplace of English civilization.D.Coastal residents are vulnerable to the climate change.Questions14through16are based on the following passage.14. A.Scientists in Britain are going to collect rocks on Mars.B.The discovery of Boron is a milestone in Mars exploration.C.Evidence indicates there exist plants and animals on Mars.D.The microscope is mainly used to identify different rocks.15. A.Basic molecules for life. B.More essential chemicals.C.Holes caused by microbes.D.Ancient material from Mars.16. A.The development of life on Mars. B.The search for signs of life on Mars.C.The importance of research on rocks.D.The discovery of surface water on Mars. Questions17through20are based on the following conversation.17. A.To practise skateboarding. B.To encourage teenagers in trouble.C.To support a non-profit organization.D.To fulfil his dream of touring Europe.18. A.They served as tour guides for Joe. B.They kept a record of Joe’s journey.C.They transported equipment for Joe.D.They took care of Joe’s accommodation.19. A.He covered a rather long distance. B.He tried to follow his friends’van.C.He fell down and broke the trainers.D.He climbed over the rugged mountains.20. A.Prepare for another trip. B.Resign from his current job.C.Write a book about his journey.D.Renew a contract with the organization.II.Grammar and Vocabulary20分Section A GrammarDirections:After reading the passage below,fill in the blanks to make the passage 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.10分Do you know someone who is exceptionally picky when it comes to the food to eat,the clothes to wear,or the people to date?Choosy people tend to be somewhat overly analytical-they carefully weigh the pros and cons of most decisions.As a result,they tend to take a lot of time (21)________(make)up their minds.Remember Jerry from Seinfeld?He was extremely picky regarding the people he dated.Any physical flaw,(22)________small,was Jerry's reason for rejecting a possible dating partner.I hada friend who was like that.He didn't like the shape of this girl's chin,or another(23)_______ears were“too large for her face.”As a result,he rarely dated anyone.A waitress told me a story of a particular picky woman.The restaurant had a special salad(24)________tons of ingredients.This woman would go down the list of ingredients and say,“I don't like cucumbers,take that out...take out the cilantro,no tomatoes,etc.”The waitress said that by the time she was done,it was(25)________salad of just iceberg lettuce!People who are not picky-the opposite end of the scale-tend to be(26)________(impulsive),flexible,and open to experience.Our research found that some people are only picky in particular areas of their lives-eating, dating,or when(27)________(evaluate)goods for purchase,although most were picky in most things.Picky people tend to analyze,and often overanalyze,the choices that they are about to make.Some of them can drive salespersons crazy as they hesitate,evaluate.and hesitate again.A contractor(承包商),who(28)________(remodel)a couple of houses,told me the story of two extreme clients.The first,who was extremely choosy,took forever to decideon bathroom fixtures,appliances,cabinets,and paint.(29)________________the non-picky one,looked at three similar colors and said,“They're all ok,you choose.”While choosy individuals(30)________spend long time deciding,being analytical and slowing to act,non-choosy people's impulsiveness may lead to quick,and unwise decisions. However,the truth is that non-choosy people may also make their quick decisions,and rationalize them to make them fit,even if it wasn't the best decision in the first place.Section B VocabularyDirections:Complete the following passage by using the words in the box.Each word can only be used once.Note that there is one word more than you need.10分A.claimedB.evacuateC.fabricsD.regularE.significantlyF.sinkG.rainstorms H.similar I.initially J.swallowing K.thought“It was a wave of water,”says Oulimata Sambe.She points out the still-sodden(湿透的) armchairs,muddy wardrobe and the water stain a metre and a half up the wall in her small house in Ngor,a fishing village within Dakar,the capital of Senegal.“I had two grandkids on my bed,I had to(31)______them out of the window,”she adds.Not faraway,underpasses on Dakar's scenic corniche(滨海路)became car-(32)______lakes.Just weeks earlier another downpour had turned quiet streets in Dakar into raging rivers and collapsed a section of motorway.(33)______events regularly occur across the region.Recent flooding and landslides also killed eight people in Freetown,the capital of Sierra Leone.In June flooding killed12people in Abidjan,the commercial capital of Ivory Coast.Floods in Lagos,Nigeria’s commercial capital, (34)______another seven lives.Even when they are not deadly,city floods ruin lives and livelihoods.Storm water recently flooded the biggest textile(纺织业)market in Kano,a city in northern Nigeria,destroying hundreds of thousands of dollars’worth of(35)______.Unusually heavy rains have become(36)______more common over the past30years, leaving huge numbers of people at risk.In places this is partly because of deforestation.A recent study by Christopher Taylor of the UK Centre for Ecology and Hydrology,a research institute, and his coauthors found that afternoon(37)______in deforested parts of coastal west Africa happen twice as often compared with30years ago.Their frequency went up by only about a third in places that kept their forests.Yet(38)______flooding of cities in west Africa is not only caused by heavier rain.Unplanned urbanization is also to blame.As cities have grown,builders have thrown up concrete walls with little(39)______about providing drainage,making it harder for water to find a clear path to the sea.As ever larger areas have been paved over,there has been less exposed soil into which water can gently(40)______away.And as cites get more packed with new arrivals,their few functioning drains get overwhelmed or clogged.III.Reading Comprehension45分Section 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.15分When Harry told me that he was leaving the company,one of the first things he said to me was that he didn’t like emotional goodbyes.I have decided to take him at his word.Everything you will hear me say tonight is straightforward and___41___,just like the man himself.Harry has been in the finance departent for seven years.In that time,he has not done anything remotely___42___.I asked several people if they had anecdotes(轶事)about him,and the best they could come up with is that he once accidentally changed a formula in the annual budget spreadsheet.Since the___43___was quickly spotted and fixed,it had no impact at all.Will Harry be___44___?Not at all,though for reasons that he may not fully grasp.This is an evening in which the person who is leaving receives presents(as well as a card from people whose names you don't recognize but who just loved working with you).But the___45___goes both ways.The leavers have a parting gift of their own to present:a convenient scapegoat(替罪羊).When someone dies,the convention is not to speak ill of the departed.When an employee ___46___a company,it's the opposite.Things that don't work as well as they should can be laid at the door of someone who won't___47___.Frustrations that have been suppressed can finally be blamed on someone.When we speak of you,we will say things like“Harry had many strengths but...",and we will___48___ourselves that you held us back a bit.This will not be true,but it will be___49___.I'd like to take this opportunity to tell you that we are grateful for this___50___ act of service,which can last for as long as a year after someone has actually left the building. After that,memories tend to fade.I wish I could promise you that you are part of company folklore,or that your role in banning plastic straws from the office will ring through the ages. ___51___,the only guarantee I can give is that no one here will ever read your exit-interview notes.This may all seem a little___52___.You have spent many years at the company,and yet will probably___53___.But in spite of that,you should still feel___54___in your time here.To have done your work well and to leave at a time of your choosing are achievements that are beyond most people.So please raise your glasses to Harry.He has been an excellent colleague and won't really be___55___.41.A.off the guard B.to the point C.in the swing D.on the horizon42.A.funny B.impressive C.correct D.creative43.A.breakdown B.discovery C.mistake D.crack44.A.hated B.remembered C.adored D.forgotten45.A.impact B.exchange C.ceremony D.end46.A.joins B.founds C.reforms D.exitse up B.answer back C.leave off D.back away48.A.persuade rm C.remind D.caution49.A.pointless B.consequential C.significant D.convenient50.A.selfless B.grand C.final D.accidental51.A.Instead B.Otherwise C.Besides D.Therefore52.A.weird B.amusing C.exciting D.sad53.A.make no difference B.leave little traceC.have some sayD.produce much impact54.A.regret B.guilt C.pride D.pain55.A.missed B.replaced C.erased D.blamedSection BDirections:Read the following three passages.Each passage is followed by several questions or unfinjshed 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.22分AWorth nearly$ltrn,Facebook is the world’s sixth-most-valuable company.Its revenues have grown by56%in the past year,and its share price by more than a quarter.Nearly3bn people use its products every month.Why did such a successful company change its name as Meta?The likely official reason for the rebranding is that the firm has outgrown the social network that Mark Zuckerberg started17years ago in a Harvard dorm.Today it includes other social apps (Instagram,WhatsApp,Messenger)and video hardware(Oculus,Portal).It has launched a digital wallet(Novi)and may yet offer a currency(Diem).Mr Zuckerberg expects people eventually to associate his firm more with the“metaverse”(元字宙),a virtual space for work play and more, than with social media.Facebook wouldn't be the first tech giant to do so.In2015Google set up Alphabet,a holding company for the search engine and its many side projects.Under this model,Facebook would become just another app within a wider family,though by far it has been the biggest earner.There is another possible motive for a makeover.For all its financial success,the Facebook brand has become tarnished.The social network is blamed for fueling everything from teenage anorexia(厌食症)to uprising at the US Capitol.Public trust in it is lower than in most tech giants, and falling.Although two years ago the firm started branding its apps as being“from Facebook”, its new smart glasses,which can record video and take phone calls,feature only the logo of its partner,Ray-Ban.A former employee revealed that Facebook was trying to cover up a drop in young American users.Mr Zuckerberg himself has been a reason for much of the criticism of Facebook,and of bossy tech firms more generally.As the all-powerful founder,he has a higher profile than his opposite numbers at TikTok,YouTube and other social networks.Normally,a brand facing a reputational crisis might dump its unpopular CEO.But Mr Zuckerberg’s position is immovable, which may explain why he would want to dump the brand instead.56.Facebook changed its name because________.A.it wanted people to associate its name with universeB.it was trying to follow the fashion led by GoogleC.it expected to expand its business to a wider rangeD.its former name has brought bad reputation to the company57.What can we know about Facebook?A.It was founded by Zuckerberg in Harvard's dormitory.B.It has a positive influence on teenagers’mind and actions.C.It is as popular among young people in the US as it was.D.It produced smart glasses with two companies’logos on it.58.What does the underlined word“tarnished”mean in the passage?A.distinguishedB.abandonedC.globalizedD.spoiled59.This passage probably appears in________.A.a science reviewB.a business magazineC.a technical reportD.the website of FacebookBThe Pros and Cons of Napping●Daytime resting:helpful or harmful?Getting some sleep,even a short afternoon nap,may seem like a good thing for people with sleep disorders.But for those with insomnia and an already decreased desire to sleep at night, midday shut-eye can actually be counterproductive.So before you curl up on the couch this afternoon,consider whether your quick fix might backfire when you lie down in bed tonight.●Trouble sleeping at nightIf you have insomnia,naps present a problem,even if you feel tired during the day.Napping during the day can perpetuate bad sleep habits for people with temporary sleep issues caused by stress,illness,or jet lag too.“Even just a little bit of a power nap reduces your night time sleep drive,”says Ralph Downey III,PhD,director of the Sleep Disorders Center at Loma Linda University Medical Center in Califoria.“The nap becomes nothing more than another episode of fragmented sleep.”●Getting through the dayIf you don't have a problem getting your z’s at night,a quick nap can work wonders to pull you through a tiresome or sleep-deprived day.In fact,a2008study found that a45-minute daytime nap can improve memory function.And previous studies have found that naps can lower blood pressure.Those who suffer from narcolepsy or shift-work syndrome may also benefit from daytime naps,says James Wyatt,PhD,director of the Sleep Disorders Service and Research Center at Rush University Medical Center in Chicago.●Fatigue could be a warning signIf you're constantly fighting the urge to sleep during the day and falling asleep instantly at night,you might have obstructive sleep apnea,a condition in which you stop breathing while you sleep.In this case,naps won't help.By wearing a continuous positive airway pressure(CPAP) machine that flows oxygen through your nose,however,you'll likely sleep more soundly and wake refreshed whether from a good night's rest or a quick catnap.60.If you suffer from insomnia________.A.midday shut-eye may be helpfulB.a short afternoon nap is probably a good thingC.napping during the day is considered a good habitD.a little bit of a power nap decreases your night time sleep desire61.A quick nap can be beneficial for common people except those________.A.who have a problem falling into sleep at nightB.whose memory is not good enoughC.who suffer from shift-work syndromeD.whose blood pressure is too high62.It can be inferred from the passage that________.A.naps are helpful for those who have obstructive sleep apneaB.more oxygen through your nose might improve sleep qualityC.a45-minute daytime nap can be beneficial for those with insomniaD.a quick nap can pull everyone through a sleep-deprived dayCDelivering life-saving drugs directly to the brain in a safe and effective way is a challenge for medical providers.One key reason:the blood-brain barrier,which protects the brain from tissue-specific drug delivery.Methods such as an injection or a pill aren't as precise or immediate as doctors might prefer,and ensuring delivery right to the brain often requires invasive risky techniques.A team of engineers from Washington University in St.Louis has developed a new nanoparticle generation-delivery method that could someday vastly improve drug delivery to the brain,making it as simple as a sniff.“This would be a nanoparticle nasal spray,and the delivery system could allow medicine to reach the brain within30minutes to one hour,”said Ramesh Raliya,research scientist at the School of Engineering&Applied Science.“The blood-brain barrier protects the brain from foreign substances in the blood that may injure the brain,”Raliya said.“But when we need to deliver something there,getting through that barrier is difficult and invasive.Our non-invasive technique can delivel drugs via nanoparticles so there’s less risk and better response times.”The novel appronch is based on aerosol(气落胶)science and enginecring principles that allow the gencation of monodisperse nanoparticles,which can deposit on upper regions of the nasal cavity via spread.The nanoparticles were tagged with markers,allowing the researchers to track their movement.Next,researchers exposed locusts’antenna(触角)to the aerosol,and observed the nanoparticles travel from the antennas up through the olfactory nerve,which is used to sense the smell.Due to their tiny size,the nanoparticles passed through the brain-blood barrier,reaching the brain and spreading all over it in a matter of minutes.The team tested the concept in locusts because the blood-brain barriers in the insects and humans have similarities.“The shortest and possibly the easiest path to the brain is through your nose,”said Barani Raman,associate professor of biomedical engineering.“Your nose,the olfactory bulb and then olfactory cortex:two steps and you’ve reached the cortex.”To determine whether or not the foreign nanoparticles disrupted normal brain function,Saha examined the physiological response of olfactory neurons in the locusts before and after the nanoparticle delivery and found no noticeable change in the electrophysiological responses was detected.“This is only a beginning of a set of studies that can be performed to make nanoparticle-based drug delivery approaches more principled”Raman said.The next phase of research involves fusing the gold nanoparticles with various medicines,and using ultrasound to taarget a more precise dose to specific areas of the brain,which would be especially beneficial inbrain-tumor cases.63.This passage is mainly about________.A.a novel method of drug deliveryB.a challenge facing medical staffC.a new medicine treating brain diseasesD.a technique to improve doctors’ability64.According to the passage,which of the following statements is TRUE?A.Doctors prefer using methods like an injection to treat diseases.B.Locusts were taggged with markers to track their movement.C.The blood-brain barrier lowers the effectiveness of a pill.D.The medicine could reach the brain within half an hour.65.The researchers focused their study on locusts because________.A.human and locusts have similar structures that protect brain from foreign substances.B.the delivery process consists of the olfactory bulb and the olfactory cortexC.locusts have changeable electrophysiological responses to nanoparticlesD.The shortest and possibly the safest path to the brain is through human’s noses66.________would most be interested in reading this passage.A.A lung cancer patient who needs operation immediatelyB.A college student who majors in medical technologyC.A senior doctor who is about to retireD.A high school teacher who is teaching biologySection CDirections:Read the following passage.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 woman held tightly her phone to her heart,the way a missionary might hold a Bible.She was anxious to take a picture of a stunning bouquet of flowers,but first she had toget through a crowd of others who were doing the same.(67)___________For the34th year,florists were asked to create bouquets that respond to pieces of art on display,from ancient carvings to contemporary sculptures.A tower of baby’s breath imitates a waterfall in a nearby painting by Gustav Grunewald.Red flamingo flowers and neon blue sticks echo a surreal portrait of a woman by Salvador Dali.It's amazing and also extremely Instagrammable,to the point that it has become a problem.(68)__________Institutions of fine art around the world face similar problems as the desire to take photographs becomes a huge draw for museums as well as something that upsets some of their sponsors.So the de Young responded with a kind of agreement:carving out“photo free”hours during the exhibition’s six-day run.One common complaint in the ongoing debates over the effect of social media on museum culture is that people seem to be missing out on experiences because they are so busy collecting evidence of them.A study published in the journal Psychological Science suggests there is truth to this.It found that people who took photos of an exhibit rather than simply observing it had a harder time remembering what they saw.(69)__________Linda Butler,the de Young’s head of marketing,communications and visitor experience,acknowledges that not everyone wants amuseum to be“a selfie playland”.Yet a lot of other people do,and her take is that the de Young is in no position to claim that one motivation for buying a$28ticket is more valid than another.If we removed social media and photography,she says,“we should risk becoming irrelevant”.(70)__________On this visit to the museum,most people seemed to treat the photo craze as the new normal.Many politely waited their turn and got out of other people's shots even as visitors bumped into each other in crowded galleries.IV.Summary Writing:10分Directions:Read the following passage.Summarize the main idea and the main points)of the passage in no more e your own words as far as possible.71.It is a common sight on campus or in the streets:a young person rides by on an electric scooter,traveling quickly and proudly.But Beijing's traffic authorities have said that starting on Sept.5,people who are caught riding electric scooters on public roads or bicycle lanes will be fined10yuan.They will also be given a warning not to use the vehicles on public roads again.The announcement was made after traffic police in Shanghai started a campaign to get electric scooters off public roads,with police officers stopping riders because the scooters could cause traffic problems.The Beijing Consumer Association said it had tested more than20electric scooters of different brands recently and found that most had substandard brakes.It added that16 of the tested scooters could go faster than the maximum20km per hour set for electric bikes. According to the traffic police,people who ride electric scooters at certain speeds can easily bump into the vehicles in the vehicle lane and hurt people who walk in the bicycle lanes.But seeing the benefits that electric scooters have brought to young people,experts are worried that the ban may take effect slowly.Electric scooters are a great answer to the“last mile problem of getting from a public transport station to one’s home.They're light enough to throw over your shoulder.They're easy to ride just about anywhere and don't need a lot of physical effort.The scooter can travel25km on one charge.It's convenient and easy to control.They are also good for the environment.Unlike cars and buses.electric scooter produce no carbon dioxide,need no fuel and make almost no noise.For many young people,they use them to copy cool celebrities they have seen in videos.第II卷V.Translation:(3+3+4+5=15’)Directions:Translate the following sentence into English,using the words given in the brackets.72.在场的人都觉得他说的话不能证明他是无辜的。
2022-2021学年度第一学期月考试题2022.10.14.高一语文一、本大题共10小题,每小题2分,共20分。
1.下列词语中,加点字的读音全部正确的一项是()A.遒.(qiú)劲分.(fèn)外百舸.(kě)争流沁.(qìn)人心脾B.颓圮.(pǐ)谒(yè)见头晕目眩.(xuàn)自怨自艾(ài)C.衣钵.(bō)逶迤.(yí)荆棘.(jí)丛生扼腕.(wàn)长叹D.漂泊.(pō)冰屑.(xiāo)虎踞(jù)龙盘瞋.(chēn)目而视2.下列词语中,字形全部正确的一项是()A.慷慨追溯天纶之乐峥嵘岁月B.萧瑟消散星辉斑斓悄无生息C.匾额呕歌忸怩担忧林阴大道D.寥廓凌侮诲人不倦轻歌曼舞3.依次填入下列各句横线处的词语,最恰当的一组是()①发源于青海省的三江源培育了中华儿女,同时也了灿烂夺目的中华文明。
②日方歪曲历史,既损害了两国人民的感情,也损害了双方的根本利益。
③碳排放过量会给地球生态环境带来严峻危害,假如不加以,必定会威逼人类生存。
A.孕育一再遏制B.哺育一再遏制C.孕育一再遏止D.哺育一再遏止4.下列各句中,加点的成语使用不恰当...的一项是()A.她出身于音乐世家,长期的耳闻目睹....,加上勤奋努力,使得她年纪轻轻就显示出惊人的音乐才华。
B.中国第一艘航母正式交接入列的消息兴奋人心....,尽管尚未形成航母编队作战力量,但其意义深远。
C.今年中秋、国庆双节相邻,由于各大景区未雨绸缪....,应对得当,旅游黄金周没再变成“难过周”。
D.今年夏天抗击洪涝灾难,让我们看到了坚强、团结、友爱,这才是我们国家不行或缺....的力气之源。
5.下列各句中,没有..语病、表意明确的一句是()A.学校抓不抓青少年抱负训练的问题,是关系到祖国建设事业后继有人的大事,必需引起高度重视。
B.电子阅读的普及,不仅给现代人带来丰富多样的阅读内容,也在悄然转变着人们在纸质阅读时代所形成的审美趣味和观赏习惯。
扁桃体属于免疫器官,所以它属于器官这个结构层次 ,C 正确。
玉米花具有风媒花的特点:花朵小,没有艳丽的花冠和芳香的花蜜;花粉多而轻;柱头有 分叉或黏液,有利于风力传粉,A 正确。
11.C 酒精能溶解叶绿素,但酒精是易燃、易挥发的物质 ,直接加热容易引起燃烧发生危险 ,因 此应把叶片放入装有酒精的小烧杯中,隔水加热,C 错误。
阶段检测卷一第一、二、三单元一、单项选择题(每小题1分,共15分) 1.D 竹外桃花三两枝,春江水暖鸭先知”体现了温度对生物的影响,D 错误。
2.B 葵花向日倾体现了生物能够对外界刺激作出反应 ,B 正确。
3.A 一个探究实验中只能有一个实验变量 ,其他因素均处于相同且理想的状态 ,这样便于排 除其他因素对实验结果的干扰。
甲实验装置形成了干燥和湿润的两种环境 ,实验变量是水分。
乙实验装置形成的实验变量有两个 ,一个是水分,另一个是光照,这样不能保证实验结果的不 同是由某一变量引起的,因此A 正确。
4.A 旗形树是经常吹定向强风形成的,是环境对生物的影响,A 正确。
5.B 从图甲转为图乙是由低倍镜换成了高倍镜 ,首先要移动玻片把物像移动到视野中央 ,然 后转动转换器,当换上高倍镜后,视野变暗,需要调节光圈或反光镜使视野变得亮一些 ,最后转 动细准焦螺旋使物像更加清晰 ,B 符合题意。
6.D ①心脏能不断收缩和舒张,主要由肌肉组织构成;②唾液腺是分泌唾液的腺体,主要由上皮组织构成;③大脑属于神经系统,主要由神经组织构成;④股骨是具有支持、 连接、 保护和营养等功能的器官,主要由结缔组织构成,而机械组织属于植物的组成结构 ,D 正确。
7.D ④是根冠,具有保护作用,属于保护组织,D 错误。
8.C 9.D 胚是由受精卵发育来的,D 错误。
10.A17.答案(1)光照是否是种子萌发的必要条件(2)光照、不同植物的种子(3)充足的空气、一12.B a步骤是把盆栽的天竺葵放黑暗处一昼夜,目的是耗尽叶片中的淀粉,A错误。
无锡华仕中学第一学期初一年级语文学科第一次阶段性检测试卷(满分100分,考试时间150分钟)一、基础知识及运用(共24分)1、根据拼音写汉字或给加点字注音(4分)(1)bì益(2)瘦骨lín xún (3)镌.刻(4)xiá疵2、根据课文默写(10分)(1)潮平两岸阔,。
(2),铜雀春深锁二乔。
(3)梅须逊雪三分白,。
(4)万水千山。
(5)然而当初她的芽儿,,。
(6)谁道人生无再少?,。
(7)王湾的《次北固山下》中描写时序交替中的景物,暗示着时光流逝,蕴含着自然理趣的诗句是:,。
3、解释下列加点的词(4分)昂首观之,项为之强.。
又留蚊于素.帐中,徐.喷以烟,使其冲烟飞鸣,作青云白鹤观,果如鹤唳云端,怡然.称快。
(1)项为之强.(2)又留蚊于素.帐中(3)徐.喷以烟(4)怡然.称快4、.下列句子中加点词语使用不恰当的一项是(2分) ( )A .三十年来,社会沧桑巨变....,《读者》做精神家园守望者的宗旨却始终未变。
B.炮轰食品犯罪行为,维护百姓餐桌安全,是时代赋予新闻工作者义不容辞....的责任。
C.为保障游客权益,使游客在参差不齐....的旅游信息中不受骗,国家大力整顿了旅游市场。
D.网络交友已是许多人玩腻了的游戏,可有些年轻人依然乐此不疲....,一个个前赴后继地扎进去。
5、找出下列语句中没有语病的一句 (2分) ()A.为了防止酒驾这类事件不再发生,交警部门采取了强有力的措施。
B.今年是中国共产党建党90周年,全国各地开展了以“忆党史、感党恩、跟党走”为主题的系列活动。
C.随着农家乐的兴起和快速发展,使长沙乡村旅游已逐步上升到一个产业化阶段。
D.从2011年6月1日起,我国所有动车组列车将基本上完全实行实名制购票。
6、在下面语段的空白处依次填入的一组句子,排序正确的一项是(2分) ( )生命中没有导演,谁都无法为自己的人生进行彩排。
但我们可以是编剧,把生活变成我们想要的体裁:那些风花雪月的浪漫可以改编成诗歌,那些柴米油盐的琐碎,那些坎坷不平的经历。
阶段检测卷一
第一、二、三单元
一、单项选择题(每小题1分,共15分)
1.D“竹外桃花三两枝,春江水暖鸭先知”体现了温度对生物的影响,D错误。
2.B葵花向日倾体现了生物能够对外界刺激作出反应,B正确。
3.A一个探究实验中只能有一个实验变量,其他因素均处于相同且理想的状态,这样便于排除其他因素对实验结果的干扰。
甲实验装置形成了干燥和湿润的两种环境,实验变量是水分。
乙实验装置形成的实验变量有两个,一个是水分,另一个是光照,这样不能保证实验结果的不同是由某一变量引起的,因此A正确。
4.A旗形树是经常吹定向强风形成的,是环境对生物的影响,A正确。
5.B从图甲转为图乙是由低倍镜换成了高倍镜,首先要移动玻片把物像移动到视野中央,然后转动转换器,当换上高倍镜后,视野变暗,需要调节光圈或反光镜使视野变得亮一些,最后转动细准焦螺旋使物像更加清晰,B符合题意。
6.D①心脏能不断收缩和舒张,主要由肌肉组织构成;②唾液腺是分泌唾液的腺体,主要由上皮组织构成;③大脑属于神经系统,主要由神经组织构成;④股骨是具有支持、连接、保护和营养等功能的器官,主要由结缔组织构成,而机械组织属于植物的组成结构,D正确。
7.D④是根冠,具有保护作用,属于保护组织,D错误。
8.C扁桃体属于免疫器官,所以它属于器官这个结构层次,C正确。
9.D胚是由受精卵发育来的,D错误。
10.A玉米花具有风媒花的特点:花朵小,没有艳丽的花冠和芳香的花蜜;花粉多而轻;柱头有分叉或黏液,有利于风力传粉,A正确。
11.C酒精能溶解叶绿素,但酒精是易燃、易挥发的物质,直接加热容易引起燃烧发生危险,因此应把叶片放入装有酒精的小烧杯中,隔水加热,C错误。
12.B a步骤是把盆栽的天竺葵放黑暗处一昼夜,目的是耗尽叶片中的淀粉,A错误。
d步骤用碘液染色,叶片见光部分变蓝色,C错误。
本实验能证明光合作用产生淀粉和需要光,不能验证叶绿体是光合作用的场所,D错误。
13.B白天适当升温可以提高光合作用速率,A错误;夜晚降温可以减弱蔬菜的呼吸作用,从而使有机物得到积累,C错误;光是光合作用的条件,适当增强光照可增强光合作用的速率,和呼吸作用无关,D错误。
14.A从曲线中看出,随着光照强度升高,BC段光合作用速率基本不变,可能与原料等其他条件有关,A错误。
15.B甲装置中的氢氧化钠溶液吸收玻璃罩内的二氧化碳,而乙装置中清水不吸收,故此实验中的变量是二氧化碳,B错误。
二、非选择题(共35分)
16.答案(1)物质循环能量流动(2)A→植食性动物→B10
(3)C二氧化碳太阳
解析图示A能被植食性动物捕食,并且实线箭头可以和环境中的物质相互循环,因此A可以代表生产者,B代表肉食动物,C代表分解者。
虚线箭头是单向的、不可循环的,因此虚线表示的是能量流动。
(2)食物链反映的是生产者与消费者之间吃与被吃的关系,所以食物链中不应该出现分解者和非生物部分,因此图中食物链:A→植食性动物→B。
若植食动物获得1千焦的能量,则至多消耗A 1÷10%=10(千焦)能量。
(3)细菌无成形的细胞核,因此图中生物可能不具有成形细胞核的是C分解者。
碳元素在无机环境中主要以二氧化碳的形式存在,它通过植物的光合作用进入生物体内。
生产者通过光合作用制造有机物,把光能转化为化学能储存在有机物中,所以食物链中所有生物散发的能量最初来自太阳。
17.答案(1)光照是否是种子萌发的必要条件(2)光照、不同植物的种子(3)充足的空气、一
定的水分、适宜的温度(4)95%(5)需要光不能见光与光照无关
解析(1)由3组对照实验可以看出小李同学做实验要探究的问题是:光照是否是种子萌发的必要条件。
(2)在探究种子的萌发是否需要光照时,有无光照是影响种子萌发的因素,实验变量是光。
对照实验要遵循单一变量原则。
本实验选用了烟草、苋菜、蚕豆种子各200颗,可探究不同植物种子萌发是否需要光照。
(3)种子萌发的外界条件:充足的空气、一定的水分、适宜的温度。
(4)发芽率是指发芽种子数占种子总数的百分比,根据表格中的数据可知烟草种子在光下的发芽率=发芽种子数÷种子总数×100%=190÷200×100%=95%。
(5)根据记录结果可以看出:烟草种子在见光情况下发芽率为95%,在不见光情况下发芽率为3%,说明烟草种子的萌发需要光;苋菜种子在见光情况下发芽率为2%,在不见光情况下发芽率为96%,说明苋菜种子萌发不能见光;蚕豆种子在见光情况下发芽率为90%,在不见光情况下发芽率为89%,两种情况下发芽率基本差不多,说明蚕豆种子的萌发与光照无关。
18.答案(1)异花传粉(2)光合(3)叶绿体、线粒体(4)48
(5)盘状RR、Rr或rr盘状南瓜、球状南瓜
解析(1)单性花植物进行的一定是异花传粉,南瓜的植株上既有雄花又有雌花,说明南瓜的花是单性花,其进行的传粉方式是异花传粉。
(2)南瓜果实中的营养物质来源于植物体进行的光合作用。
(3)细胞内有两种能量转换器:叶绿体和线粒体,叶绿体是绿色植物细胞进行光合作用的场所;线粒体存在于动物细胞和植物细胞中,是细胞呼吸作用的主要场所。
南瓜的叶片细胞中既含有叶绿体又含有线粒体。
(4)南瓜的果皮是由南瓜子房的子房壁发育成的,因此其细胞内染色体数目与南瓜正常体细胞的染色体数目相同,与生长素溶液处理无关。
因此,这种果实的细胞中染色体数目为48条。
(5)若用纯种的盘状南瓜与球状南瓜杂交,杂交后所结的果实全为盘状南瓜。
说明盘状为显性性状。
如果把这些盘状南瓜的种子种下去,在自然条件下,所结果实的基因组成为RR盘状、Rr盘状、rr球状。
19.答案(1)叶(2)氧气(3)筛管(4)二氧化碳是光合作用的原料吗将叶片中原有的淀粉耗尽或运走(5)a淀粉
20.答案(1)呼吸作用释放的二氧化碳量光合作用吸收的二氧化碳量和呼吸作用释放的二氧化碳量之间的差值(2)3.525 ℃(26 ℃)光合作用固定的二氧化碳量是呼吸作用释放二氧化碳量的2倍(净光合速率与呼吸强度相等)(3)二氧化碳浓度光照强度
解析(1)若将题述装置置于暗处,叶片只能进行呼吸作用,因此测定单位时间内叶室中的二氧化碳含量变化值表示呼吸作用释放的二氧化碳量。
若将题述装置置于适宜强度的光照下,叶片同时进行光合作用和呼吸作用,因此测定相同单位时间内叶室中的二氧化碳含量变化值表示光合作用吸收的二氧化碳量和呼吸作用释放的二氧化碳量之间的差值。
(2)光照1小时,15 ℃时光合作用固定的二氧化碳量:实际光合作用=净光合作用(即光照下测定的二氧化碳吸收量)+呼吸作用(黑暗下测定的二氧化碳释放量)=2.5+1=3.5 (mg/h)。
图乙中净光合速率最大时最有利于植物积累有机物,对应的温度是25 ℃(26 ℃)。
两条曲线的交点表示光合作用固定的二氧化碳量是呼吸作用释放二氧化碳量的2倍(净光合速率与呼吸强度相等)。
(3)影响光合作用的环境因素包括温度、光照强度、二氧化碳浓度、含水量和矿质元素的含量等。