最新上海高一上期中考试摸底测试卷
2024届上海市新中高级中学物理高一第一学期期中检测模拟试题含解析
2024届上海市新中高级中学物理高一第一学期期中检测模拟试题请考生注意:1.请用2B 铅笔将选择题答案涂填在答题纸相应位置上,请用0.5毫米及以上黑色字迹的钢笔或签字笔将主观题的答案写在答题纸相应的答题区内。
写在试题卷、草稿纸上均无效。
2.答题前,认真阅读答题纸上的《注意事项》,按规定答题。
一、选择题:(1-6题为单选题7-12为多选,每题4分,漏选得2分,错选和不选得零分) 1、物体做匀加速直线运动,经过A 点的速度是v A ,经过B 点的速度是v B ,C 为AB 的中点,则经C 点的速度的大小是 ( )A .2A B v v +B .A B v v ⋅C .222A B v v - D .222A Bv v +2、如图为一智能机器人的行走速度随时间变化的 v-t 图像,由图可知A .机器人先向前运动,后反向运动B .机器人先做匀加速运动,后匀减速运动C .机器人的加速度先变大,后变小D .机器人的加速度先变小,后变大3、某同学在墙前连续拍照时,恰好有一小白色重物从墙前的某高处由静止落下,拍摄到重物下落过程中的一张照片如图所示.由于重物的运动,它在照片上留下了一条模糊的径迹.已知毎层砖的平均厚度为6.0cm ,这个照相机的曝光时间为2.0×10-2s ,则( )A .石子下落到A 位置时的速度约为60m/sB .石子下落到A 位置时的速度约为12m/sC .石子下落到A 位置所需的时间约为0.6sD .石子下落到A 位置所需的时间约为1.2s4、 “叠罗汉”是一种高难度的杂技.由六人叠成的三层对称静态造型如图所示,假设每个人的质量均为m ,下面五人弯腰后背部呈水平状态,则底层中A 、B 两人的右脚对水平地面的压力之比约为( )A .1B .45C .78D .7105、将一质量为5kg 的木块放置在一倾角为30的斜面上,木块静止在斜面上,现用一个沿斜面向上的F =5N 的力作用在木块上,木块仍然保持静止。
上海市七宝中学2023-2024学年高一上学期期中语文试题(含解析)
上海七宝中学高一年级期中考试语文试卷(含解析)(2023.11)(说明:本试卷满分150分,时间150分钟,所有答案均写在答题纸的相应位置上)一、积累与运用(10分)(一)(5分)1.按要求填空。
(1)______________,渚清沙白鸟飞回。
(杜甫《登高》)(2)_________,食野之苹。
(曹操《短歌行》)(3)鹰击长空,___________,万类霜天竞自由。
(毛泽东《沁园春·长沙》)(4)李白《梦游天姥吟留别》中的“__________,_________”两句,正面描写出天姥山直插云霄、耸立天外的雄伟气势。
【答案】①.风急天高猿啸哀②.呦呦鹿鸣③.鱼翔浅底④.天姥连天向天横⑤.势拔五岳掩赤城【解析】【详解】本题考查学生默写常见的名句名篇的能力。
易错字词:啸、呦、翔、拔。
(二)(5分)按要求选择。
2.假设你为学校“读书节”设计一张宣传海报,下列最适合选用的一项是()A.纸上得来终觉浅,绝知此事要躬行。
(实践)B.世事洞明皆学问,人情练达即文章。
规律C.察己则可以知人,察今则可以知古。
反省、知新D.问渠那得清如许,为有源头活水来。
3.下面是某高三学生参加高校自主招生的自荐信,画线部分可能存在不得体的表达。
尊敬的学校领导:您好!①感谢您在百忙之中阅读我的自荐信。
我是XX,来自XX市XX中学,学习成绩优秀,曾担任校学生会文艺部部长,爱好写作。
我获得过第十九届“语文报杯”全国中学生作文竞赛高中组一等奖;也曾代表学校参加市中学生辩论大赛,②以敏捷的反应和出众的口才令对手自惭形秽,③获得“最佳辩手”称号。
贵校历史悠久,底蕴深厚,④能进入贵校中文系学习是我的理想。
⑤贵校的自主招生条件也非常符合我的标准。
⑥请您一定不要拒绝我,⑦圆我的大学中文系之梦。
此致敬礼!自荐人:XXXXX年X月X日有几处画线部分存在不得体...的表达?()A.1处B.2处C.3处D.4处【答案】2.D 3.C【解析】【2题详解】本题考查学生语言表达得体的能力。
2023-2024学年上海市市西中学高一上学期期中考试物理试卷含详解(含解析)
上海市市西中学2023学年度第一学期期中考试高一物理(考试时间:60分钟 卷面满分:100分)一、单项选择题(1-8题每题3分,9-12题每题4分,共40分)1. 下列物理量在求和运算时遵循平行四边形定则的是( )A. 时间B. 路程C. 加速度D. 温度2. 下列关于质点的说法正确的是( )A 研究和观察日食时,可以把太阳看成质点B. 研究地球的公转时,可以把地球看成质点C. 研究地球的自转时,可以把地球看成质点D. 原子核很小,所以总是可以把它看成质点3. 下列情景中,两个物体a ,b (a ,b 均处于静止状态,接触面光滑)间一定有弹力是( )A. B.C. D.4. 关于力的分解,下列叙述正确的是( )A. 分力一定小于合力B. 任何一个力都只有一种分解情况C. 10N 的力可以分解为16N 和5N 的两个分力D. 10N 的力可以分解为12N 和6N 的两个分力5. 骑自行车的人沿着斜坡下行做变速运动,第1s 内通过1m ,第2s 内通过2m ,第3s 内通过3m ,第4s 内通过4m .则些列说法正确的是:( )A. 第2s 内的平均速度是2m/s .B. 第2s 末的瞬时速度为2 m/s .C. 前2s 内的平均速度为2m/s .D. 前3s 内的平均速度为3m/s .6. 甲、乙两个物体在同一条直线上运动,它们的速度图像如图所示,则( ).的A. 甲、乙两物体的加速度方向相反B. 甲物体的加速度比乙物体的加速度小C. 甲物体的初速度比乙物体的初速度大D. 在时间内,甲物体的位移小于乙的位移7. 汽车刹车后做匀减速直线运动,最后停下来,在刹车过程中,汽车前半程的平均速度与后半程的平均速度之比是( )A. B. C. D. 8. 以36km/h 的速度沿平直公路行驶的汽车,遇障碍物刹车后获得大小为a =4m/s 2的加速度,刹车后第3s 内,汽车走过的路程为( )A. 12mB. 2mC. 10mD. 0.5m9. 如图所示,某学习小组利用直尺估测反应时间:甲同学捏住直尺上端,使直尺保持竖直,直尺零刻度线位于乙同学的两指之间。
2022-2023学年上海市高一上册期中数学模拟试题(含解析)
2022-2023学年上海市高一上册期中数学模拟试题(含解析)一、填空题1.9的平方根是_____.【答案】3±【分析】根据平方根的定义确定结果.【详解】设9的平方根为x ,则29x =,所以3x =±,即9的平方根是3±.故答案为:3±.2=_____.【答案】23a 【分析】根据分数指数幂的运算直接化简即可.23a =.故答案为:23a .3.已知集合{1,2,5},{1,2,3}A B ==,则A B = __.【答案】{1,2}【分析】利用交集的定义直接求解.【详解】因为集合{1,2,5},{1,2,3}A B ==,所以A B = {1,2}.故答案为:{1,2}4.不等式403x x -<+的解集为__.【答案】(3,4)-【分析】转化为()()340x x +-<求解即可.【详解】解:因为()()403403x x x x -<⇔+-<+,解得34x -<<,所以,不等式403x x -<+的解集为(3,4)-故答案为:(3,4)-5.若关于x 的多项式方程2223ax bx c x x ++=++恒成立,则实数b =__.【答案】2【分析】根据题意结合二次函数和一次函数分析运算.【详解】∵2223ax bx c x x ++=++,则()()21230a x b x c -+-+-=恒为0,当10a -≠,即1a ≠时,则二次函数()()2123y a x b x c =-+-+-不恒为0,不合题意,舍去;当10a -=,即1a =时,则()230b x c -+-=恒为0,①当20b -≠,即2b ≠时,则一次函数()23y b x c =-+-不恒为0,不合题意,舍去;②当20b -=,即2b =时,则30c -=,解得3c =;综上所述:1,2,3a b c ===.故答案为:2.6.已知,R x y ∈,命题“若21x y xy +>⎧⎨>⎩,则11x y >⎧⎨>⎩”是__命题.(填“真”或“假”)【答案】假【分析】用特殊值法验证即可得出该命题为假命题.【详解】已知,R x y ∈,当1,42x y ==时,满足21x y xy +>⎧⎨>⎩,但此时不满足11x y >⎧⎨>⎩,故命题“若21x y xy +>⎧⎨>⎩,则11x y >⎧⎨>⎩”是假命题.故答案为:假.7.已知:12,:x x m αβ-<<,若α是β的充分条件,则实数m 的取值范围为__.【答案】3m ≥【分析】先解出条件α所表示的不等式,再根据充分条件性质可得条件α所表示的集合是条件β所表示集合的子集,即可得出结果.【详解】解:由题知():1,3,:x x m αβ∈-<,若α是β的充分条件,则{}{}13x x x x m -<<⊆<,故3m ≥.故答案为:3m ≥8.已知关于x 的不等式20ax bx c ++>的解集为{|32}x x -<<-,求关于x 的不等式20cx bx a -+>的解集为__.【答案】11,32⎛⎫ ⎪⎝⎭【分析】根据不等式解集得到5,6b a c a ==且a<0,代入得到(21)(31)0x x --<,解得答案.【详解】由题意得0,(3)(2),(3)(2)b ca a a<-=-+-=-⋅-,所以5,6b a c a ==,故20cx bx a -+>,即2650ax ax a -+>,(21)(31)0x x --<,故解集为11,32⎛⎫⎪⎝⎭.故答案为:11,32⎛⎫⎪⎝⎭9.关于x 的不等式220kx kx k +++≥的解集为R ,则实数k 的取值范围为___.【答案】[0,)+∞【分析】按0k =和0k ≠分类讨论,0k ≠时结合二次函数性质求解.【详解】当0k =时,满足题意;当0k ≠时,2Δ4(2)0k k k k >⎧⎨=-+≤⎩,解得0k >,所以实数k 的取值范围为[0,)+∞.故答案为:[0,)+∞.10.已知正数,x y 满足1x y +=,若不等式12m x y+>对任意正数,x y 恒成立,则实数m 的取值范围为__.【答案】(,3-∞+【分析】变换1212()x y x y x y ⎛⎫+=++ ⎪⎝⎭,展开利用均值不等式计算最值得到答案.【详解】由题意得12122()33y xx y x y x y x y⎛⎫+=++=+++ ⎪⎝⎭当且仅当y =,即1x =,2y =-所以实数m 的取值范围为(,3-∞+.故答案为:(,3-∞+11.已知222a b +=,则a b +的取值范围是_________.【答案】[]22-,【解析】解法一:考虑到已知条件的形式,利用三角换元方法,使用辅助角公式化简后,根据三角函数的值域求得a b +的取值范围;解法二:利用拓展到实数范围内的基本不等式222a b ab +≥(,,a b R a b ∈=时取等号)得到()()2222a b a b +≥+,进而求得a b +的取值范围.【详解】解法一:令,a θb θ==,则[]sin 2sin 2,24a b ⎛⎫+=+∈- ⎪⎝⎭πθθθ.故答案为:[]22-,.解法二: 222a b ab +≥,∴()()2222a b a b +≥+又 222a b +=,()2a b 4∴+≤,2,2a b 2a b ∴+≤∴-≤+≤,当1a b ==-时2a b +=-,当1a b ==时2a b +=,a b ∴+的取值范围是[]22-,,故答案为:[]22-,.【点睛】本题考查已知两数平方和为定值求这两数和的取值问题,有多种方法可以处理,可以采用三角换元法,也可以采用基本不等式(拓展的实数范围内的基本不等式)法.方法一中,已知222a b r +=时可做三角换元cos ,sin a r b r θθ==,方法二中,()()2222a b a b +≥+是在实数范围内恒成立的一个不等式,常用来研究平方和与和的关系.12.已知关于x 的方程22430x ax a -+-=的两个根为1x 、2x ,且在区间()12,x x 内恰好有两个正整数,则实数a 的取值范围是______.【答案】813,79⎛⎤ ⎥⎝⎦【分析】设()2243f x x ax a =-+-,对称轴为x a =,先通过0(0)00f a ∆>⎧⎪≥⎨⎪>⎩大概确定a 的范围,进而可确定对称轴的位置,再通过(1)0(2)0(3)0413f f f a <⎧⎪<⎪⎪≥⎨⎪⎪<≤⎪⎩可得实数a 的取值范围.【详解】解:设()2243f x x ax a =-+-,对称轴为x a =,由已知有:0(0)00f a ∆>⎧⎪≥⎨⎪>⎩,则413a <≤,则y =f (x )的对称轴方程为:x a =∈4(1,]3,由在区间()12,x x 上恰好有两个正整数,则(1)0(2)0(3)0413fffa<⎧⎪<⎪⎪≥⎨⎪⎪<≤⎪⎩,解得:87139a<≤,即实数a的取值范围是87139a<≤,故答案为:813 ,79⎛⎤ ⎥⎝⎦.二、单选题13.下列式子的值为32a-的是()ABCD【答案】D【分析】根据根式与分数指数幂之间的转化,逐一化简即可得到结果.23a=32a=23a-=32a-=,故选:D.14.如果22a b>,那么下列不等式中成立的是()A.0a b>>B.0a b>>C.||||a b>D.a b>【答案】C【分析】根据不等式的性质和取特殊值即可得答案.【详解】因为22a b>,故由不等式的性质得a b>,故C选项正确;对于A选项,当2,1a b==时满足22a b>,但0a b>>不成立,故A选项错误;对于B选项,由于()()2232->-,但320-<-<,故B选项错误;对于D选项,由于()()2232->-,但32-<-,故D选项错误.故选:C.15.下列不等式中等号可以取到的是()A2≥B.221222xx++≥+C.2212xx+≥D.1||32||3xx++≥+【答案】C【分析】根据基本不等式使用条件逐一检验取等条件即可得答案.【详解】解:对于A0>2≥=,当且仅当,即24x=-,故等号不成立,故A不符合;对于B,因为220x+>,所以221222xx++≥=+,当且仅当22122xx+=+,即21x=-,故等号不成立,故B不符合;对于C,因为20x>,所以2212xx+≥=,当且仅当221xx=,即1x=±时取等号,故C符合;对于D,因为30x+>,所以1323xx++≥=+,当且仅当133xx+=+,即2x=-,故等号不成立,故D不符合.故选:C.16.已知一个有四个数字元素的集合S,S的所有子集的元素和(空集的元素和认为是零)的总和等于16192,则S的元素之和等于()A.2021B.2022C.2023D.2024【答案】D【分析】设{},,,S a b c d=,列举出S所有的子集,可知所有子集的元素和为8888a b c d+++,由此可求得+++a b c d的值.【详解】设{},,,S a b c d=,则S的所有子集为:∅,{}a,{}b,{}c,{}d,{},a b,{},a c,{},a d,{},b c,{},b d,{},c d,{},,a b c,{},,a b d,{},,a c d,{},,b c d,{},,,a b c d,共16个;则S的所有子集的元素和的总和为888816192a b c d+++=,S∴的元素之和为1619220248a b c d+++==.故选:D.三、解答题17.设集合{}{}2=|60,|43--<=-≤≤+P x x x Q x a x a.(1)若P Q Q⋃=,求实数a的取值范围;(2)若P Q⋂=∅,求实数a的取值范围.【答案】(1)02a≤≤(2)7a ≥或5a ≤-【分析】(1)首先求集合P ,再根据P Q ⊆,列式求实数a 的取值范围;(2)根据P Q =∅ ,比较端点值,列式求实数a 的取值范围.【详解】(1)260x x --<,得23x -<<,所以(){}=2,3,|43P Q x a x a -=-≤≤+,若P Q Q ⋃=,则P Q ⊆,所以4233a a -≤-⎧⎨+≥⎩,所以02a ≤≤;(2)若P Q =∅ ,则43a -≥或32a +≤-,所以7a ≥或5a ≤-.18.设全集为R ,集合2|11x A x x ⎧⎫=≤⎨⎬-⎩⎭.(1)用区间表示补集A ;(2)若集合{||2||1|3}B x x x =++-=,求A B ⋃.【答案】(1)(,1)[1,)-∞-+∞ (2)[2,1]-【分析】(1)根据不等式的解法先求出集合A ,再用区间表示,进而求出补集A 即可;(2)先求出集合B ,再根据并集的运算法则即可求出A B ⋃.【详解】(1)由211011x x x x +≤⇔≤--,故[1,1)A =-,则(,1)[1,)=-∞-+∞ A ;(2)由{||2||1|3}[2,1]B x x x =++-==-,结合上一问有[1,1)A =-,所以=[2,1]A B B ⋃=-.19.某玩具所需成本费用为p 元,且p 关于玩具数量x (套)的关系为:211000510p x x =++,而每套售出的价格为q 元,其中()(),xq x a a b bR =+∈.(1)问:玩具厂生产多少套时,使得平均成本最少?(2)若生产出的玩具能全部售出,且当产量为150套时利润最大,此时每套价格为30元,求a 、b 的值.(利润=销售收入-成本).【答案】(1)玩具厂生产100套时,平均成本最少;(2)25a =,30b =.【分析】(1)建立函数的解析式,利用基本不等式可求得函数的最值;(2)根据利润=销售收入-成本,求出利润函数,再利用当产量为150套时利润最大,此时每套价格为30元,结合二次函数的基本性质建立条件关系,即可求出a 、b 的值.【详解】(1)由题意,每套玩具所需成本费用为2110005100010552510x xp x xx x ++==++≥+=,当且仅当100010x x=时,即当100x =时,每套玩具所需成本费用最少为25元;(2)利润()()2211110005510001010x y xq x p x a x x x a x b b ⎛⎫⎛⎫⎛⎫=-=+-++=-+-- ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭,若生产的玩具能全部售出,且当产量为150套时利润最大,此时每套价格为30元,则51501121015030ab a b -⎧=⎪⎛⎫-⎪ ⎪⎨⎝⎭⎪⎪+=⎩,解得25a =,30b =.【点睛】本题考查利用函数模型解决实际问题,同时也考查了利用基本不等式和二次函数求最值,考查计算能力,属于中等题.20.已知1x ,2x 是一元二次方程24410kx kx k -++=的两个实数根.(1)若两根异号,求实数k 的取值范围;(2)是否存在实数k ,12123(2)(2)2x x x x --=-成立?若存在,求出k 的值;若不存在,请说明理由.(3)求使12212x x x x +-的值为整数的实数k 的整数值.【答案】(1)()1,0-(2)不存在,理由见解析(3)k 的值为2-或3-或5-【分析】(1)结合韦达定理,即可求解;(2)利用反证法先假设存在实数k ,使得()()12123222x x x x --=-成立,根据一元二次方程有两个实数根可得95k =,因此原假设不成立,故不存在;(3)根据题意()22212121221121244224411x x x x x x k x x x x x x k k +++-=-=-=-=-++,可得1k +能被4整除,即可求出k 的值.【详解】(1)由题意得()()122104Δ44410k x x k k k k +⎧=<⎪⎨⎪=--⨯⨯+>⎩,即10k -<<,所以实数k 的取值范围为()1,0-.(2)不存在,理由如下:因为1x ,2x 是一元二次方程24410kx kx k -++=的两个实数根,所以()()20Δ44410k k k k ≠⎧⎪⎨=--⨯⨯+≥⎪⎩,所以0k <,由根与系数的关系得121x x =+,1214k x x k+=,所以21212121213(2)(2)2()92942k x x x x x x x x k +--=+-=-⨯=-,解得95k =,而0k <,故不存在实数k 使得12123(2)(2)2x x x x --=-成立.(3)由根与系数的关系得212122112()4241x x x x x x x x k ++-=-=-+,因为41k -+的值为整数,而k 为整数,所以1k +只能取1±、2±、4±,又0k <,所以整数k 的值为2-或3-或5-.21.若对一个数集,0P P ∈,若任取P 中的两个非零元素,他们加、减、乘、除后的结果都仍属于P ,则称数集P 为数域,如有理数集Q 为有理数域,实数集R 为实数域.(1)判断整数集Z 是否为数域,并说明理由;(2)判断数集{|,Q,Q}M x x b a b ==+∈∈是否为数域,并说明理由;(3)若,A B 为任意两个数域,判断,A B A B 是否为数域,并说明理由.【答案】(1)不是,理由见解析;(2)是,理由见解析;(3)A B ⋂是,A B ⋃不是,理由见解析.【分析】(1)分析Z 中两个非零元素的加减乘除是否属于Z ;(2)在M 中,任取两个非零元素,分析其加减乘除是否属于M ;(3)根据交集和并集的定义,先推理A B ⋂,再推理A B ⋃.【详解】(1)在Z 中取1,2两个元素,则120.5Z ÷=∉,所以不是;(2)在M中取()()11111222220,0x b a b x b a b =+≠=+≠,并且12x x ≠,则有)()121212x x a a b b M±=±+±∈,)()12122112122x x a b a b a a b b M +++∈,121121212222222222222x a b a b a a b b Mx a b a b⎛⎫--=+∈--⎝⎭,所以M是数域;(3)对于A B⋂,若存在两个元素a A b A∈∈,,并且,a Bb B∈∈,则,a A Bb A B∈∈,由数域的定义可知,,a b A a b B a b A B±∈±∈∴±∈ ,,,ab A ab B ab A B∈∈∴∈ ,,,b b bA B A Ba a a∈∈∈ ,所以A B⋂是数域;对于A B⋃,不妨假设{}{}|,Q,Q,|,Q,QA x x b a bB x x a b a b=+∈∈=+∈∈,在A中取1x b+,在B中2x b+,()0a≠,则12,x A B x A B∈∈,121212,,x x a A x x B x x A B-=∉-∉∴-∉ ,所以A B⋃不是数域.综上,(1)Z不是数域;(2)M是数域;(3)A B⋂是数域,A B⋃不是数域.。
上海市徐汇区、金山区、松江区2025届高一化学第一学期期中复习检测模拟试题含解析
上海市徐汇区、金山区、松江区2025届高一化学第一学期期中复习检测模拟试题注意事项:1.答题前,考生先将自己的姓名、准考证号填写清楚,将条形码准确粘贴在考生信息条形码粘贴区。
2.选择题必须使用2B铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。
3.请按照题号顺序在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、试题卷上答题无效。
4.保持卡面清洁,不要折叠,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、牛奶和豆腐中含有丰富的钙,这里的“钙”应理解为( )A.元素B.单质C.原子D.分子2、下列说法中,正确的是A.物质的量就是物质的质量B.摩尔既是物质的数量单位又是物质的质量单位C.摩尔质量等于物质的相对分子质量D.阿伏加德罗常数可以近似表示为6.02×1023mol-13、同体积同物质的量浓度的AgNO3溶液中分别加入同体积的NaCl、MgCl2、AlCl3溶液,恰好使Cl-完全转化为沉淀,则三种溶液的物质的量浓度之比为A.1:1:1 B.1:2:3 C.1:4:9 D.6:3:24、下列反应既是置换反应又是氧化还原反应的是A.2F2+2H2O== 4HF+O2B.Cl2+H2O== HCl+HClOC.3NO2+H2O== 2HNO3+ NO D.2Na2O2+2H2O== 4NaOH +O2↑5、下列关于氯气及其化合物的叙述正确的是A.氯气不溶于水,因此可用排水法收集氯气B.氯气在常温下能与铁反应,故不能用铁罐存放液氯C.光照新制氯水有气体逸出,该气体是氧气D.氢气在氯气中燃烧产生淡蓝色火焰6、逻辑推理是化学学习常用的思维方法,下列推理正确的是( )A.氧化物都含有氧元素,含有氧元素的化合物一定是氧化物B.氧化还原反应中有元素化合价的改变,有元素化合价改变的化学反应一定是氧化还原反应C.电解质是溶于水或熔融状态下能够导电的化合物,溶于水能导电的化合物一定是电解质D.中和反应有盐和水生成,有盐和水生成的反应一定是中和反应7、下列有关说法正确的是A.1L水中溶解了40.0 g NaOH,该溶液的物质的量浓度为1 mol/LB.从1L2mol/L的NaCl液中取出0.5L,取出的该溶液的浓度为1mol/LC.中和100 mL 1mol/L的H2SO4溶液,需NaOH8.0gD.配制500mL0.5mol/L的CuSO4溶液,需40.0g胆矾8、下列关于胶体的相关说法不正确的是( )A.向沸水中逐滴滴入饱和氯化铁溶液加热得红褐色液体,即为Fe(OH)3胶体B.向Fe(OH)3胶体中逐滴滴入稀硫酸,现象是先出现红褐色沉淀,后溶解转为黄色溶液C.江河入海口三角洲的形成通常与胶体的性质有关D.纳米材料微粒直径一般从几纳米到几十纳米(1 nm=10-9 m),因此纳米材料属于胶体9、认识反应条件对化学反应的影响,对学好化学具有重要意义,下列说法中正确的是A.偏铝酸钠溶液中加入一定量的盐酸,最终一定得到Al(OH)3沉淀B.钠在敞口容器中存放或在空气中燃烧的产物都是Na2O2C.向NaOH溶液中通入少量CO2或过量CO2都只生成Na2CO3D.氯化铝和少量的氨水或过量的氨水反应都得到Al(OH)3沉淀10、以下实验操作过程中,溶液里无固体物质析出的是()A.向CuCl2溶液中加入钠的小颗粒B.向Fe2(SO4)3溶液中加入少量铜粉C.向Mg(NO3)2溶液中加入Na2O2粉末D.向Fe(OH)3胶体中逐滴加稀硫酸11、下列物质中,属于纯净物的是A.浓硫酸B.碘酒C.液氨D.84消毒液12、实验室利用下列反应装置模拟侯氏制碱法制备NaHCO3,反应原理为:NH3+CO2+H2O+NaCl=NaHCO3↓+NH4Cl,下列说法错误的是()A.通过活塞K可控制CO2的流速B.装置b、d依次盛装饱和Na2CO3溶液、稀硫酸C.装置c中含氨的饱和食盐水提高了CO2吸收效率D.反应后将装置c中的锥形瓶浸入冷水充分冷却,过滤得到NaHCO3晶体13、配制250mL 0.10mol/L的盐酸溶液时,下列实验操作会使配制的溶液浓度偏高的是A.容量瓶内有水,未经过干燥处理B.定容时,仰视刻度线C.用量筒量取浓盐酸时,用水洗涤量筒2~3次,洗涤液倒入烧杯中D.定容后倒转容量瓶几次,发现液体最低点低于刻度线,再补加几滴水到刻度线14、下列化学反应的离子方程式正确的是()A.碳酸钠溶液与石灰乳的反应:CO32-+Ca2+=CaCO3↓B.氢氧化钡溶液与稀硫酸反应:Ba2++SO42-+H++OH-=BaSO4↓+H2OC.铜片插入硝酸银溶液:Cu+Ag+=Cu2++AgD.硫酸铜溶液中滴加氢氧化钡溶液Ba2++2OH-+Cu2++SO42-=BaSO4↓+Cu(OH)2↓15、关于胶体的性质与应用,相关说法错误的是A.静电除尘器除去空气或工厂废气中的飘尘是利用了胶粒的带电性B.由于胶粒之间有排斥作用,胶粒不易聚集成大的颗粒,这是胶体具有介稳性的主要原因C.纳米材料微粒直径一般从几纳米到几十纳米,因此纳米材料属于胶体D.Al(OH)3胶体吸附水中的悬浮物属于物理过程16、下列说法正确的是( )①钠燃烧时发出黄色的火焰②过氧化钠能与酸反应生成盐和水,所以过氧化钠是碱性氧化物③过氢化钠能与水反应,所以过氧化钠可以作气体的干燥剂④过氧化钠中阴阳离子个数比为1:1⑤钠是一种很强的还原剂,钠可以把锆、铌等金属从它们的化合物的水溶液中置换出来⑥Na2O2分别与水及CO2反应产生相同量的O2时,需要水和CO2的质量相等⑦可用水来确定某Na2O粉末中是否含有Na2O2⑧将足量的Na2O2、Na2O分别加到酚酞试液中,最终溶液均为红色A.①②⑤⑦B.①⑧C.①②⑤⑧D.①⑦二、非选择题(本题包括5小题)17、如图表示的是A→E五种物质的相互转化关系,其中A为淡黄色固体,B为单质,D为正盐。
上海市2023-2024学年高一上学期期中考试历史试卷(含解析)
上海市2023-2024学年高一上学期期中考试历史试卷学校:___________姓名:___________班级:___________一、单选题1.中国已发现的旧石器时代代表性的遗存有距今约170万年的和距今约70万至20万年的。
他们从事,过着群居生活。
下列选项填空正确的是()A.北京人元谋人采集渔猎B.元谋人北京人采集渔猎C.北京人元谋人原始农耕D.元谋人北京人原始农耕2.我国早期农耕文明形成南稻北粟格局的主要原因是()A.地理气候B.饮食习惯C.历史传统D.酋长喜好3.一位官员因为在父丧期间,让婢女服侍他吃药,被人检举违反礼法,因而受到清议的批判,甚至使他的仕途受阻。
这位官员最可能处于何时()A.秦汉B.魏晋C.隋唐D.宋明4.《左传》日:“桀有昏德,鼎迁于商,载祀六百。
商纣暴虐,鼎迁于周。
”下列成语中的“鼎”与材料中的“鼎”含义相同的是()A.人声鼎沸B.鼎鼎有名C.三足鼎立D.问鼎中原5.某同学查阅了有关“文成公主入藏”、“汉人胡食”、“北魏孝文帝改革”的一些历史资料进行主题探究,他探究的主题是()A.统一国家的建立B.民族融合C.繁荣与开放的社会D.民族关系的发展6.三国两晋以来,一些声名显赫的家族世代把持宫位:享受政治经济等特权,形成一个特殊的社会阶层,称为()A.庶族B.士族C.党人D.博士7.在三国鼎立示意图中②代表()A.鲜卑B.魏C.蜀D.吴8.五代十国时期,“十国”中的南汉位于地图中的()处附近。
A.C B.E C.H D.N9.下图为我国古代地方权力强弱变化图,较为正确的是()A.B.C.D.10.“盛世时期”是封建社会少有的经济发展、社会稳定时期。
各个盛世都具有共同特征:国家统一,经济繁荣,政局稳定,社会久安,国力强大,文化昌盛等。
以下不属于盛世时期的是()A.百家争鸣时期B.文景之治时期C.光武中兴时期D.贞观之治时期11.如图是上海崧泽遗址出土的家猪陶塑,据此可推测()A.上海是最早驯养家猪的地区B.上海崧泽文化以驯养牲畜为主C.上海的手工业水平领先全国D.上海于新石器时代已产生农业12.顾炎武在《日知录》中描述“邦无定交,土无定主"的社会现象最可能集中出现在()A.夏商时期B.西周时期C.东周后期D.两汉时期13.探究因果关系是历史学习的重要技能。
上海市2023-2024学年高一上学期期中考试生物试卷(含解析)
上海市2023-2024学年高一上学期期中考试生物试卷学校:___________姓名:___________班级:_________一、单选题1.下列有关生物工程方面的叙述中,正确的是()A.叶肉细胞离体培养时,经再分化过程可形成愈伤组织B.培养流感病毒时应选用无菌的牛肉汤C.在青霉菌体内获取青霉素属于基因工程的实例D.基因工程、细胞工程都能克服远缘物种杂交之间障碍2.下列关于用显微测微尺测量蚕豆叶下表皮保卫细胞长度实验的叙述中,正确的是()A.不同放大倍数下,目镜测微尺每小格所代表的长度基本相同B.测量过程中常需转动目镜,以使测微尺与保卫细胞的长径平行C.从低倍镜换为高倍镜时,需调节粗调节器,使物象清晰D.只要使用同一批蚕豆叶材料,不同保卫细胞的大小就一致3.如图为显微镜高倍镜下测量细胞长度的示意图,下列相关叙述正确的是()A.可直接测得该细胞的实际长度B.图中所示为物镜测微尺C.转为低倍镜后,读数会变大D.可通过旋转目镜调整测微尺的位置4.下列关于组成细胞的元素和化合物的说法不正确的是()A.细胞中不存在无机自然界没有的特殊元素B.磷脂、叶绿素、质粒和NADH共有的元素为C、H、O、NC.某链状的十肽分子中,共有12个N,其中10个在肽键中,2个在R基团中D.构成多糖、蛋白质、核酸等生物大分子基本骨架的元素是C5.马拉松长跑运动员在进入冲刺阶段后,少数运动员下肢肌肉会发生抽搐,这是由于大量排汗的同时,机体也向外排出过量的物质是()A.Zn2+B.Ca2+C.Mg2+D.Fe2+6.脂肪在人体内代谢的最终产物是()A.水和CO2B.甘油和脂肪酸C.氨基和尿素D.水和无机盐7.某条多肽链由124个氨基酸构成,下图为此多肽链部分结构,请据图判断下列叙述中正确的是()A.该多肽链含有124个肽键B.图中含有的R基是①②④⑥⑧C.从图中可推知该肽链至少含有2个游离的羧基D.该多肽合成时会产生水8.赫尔希和蔡斯分别用35S和32P标记T2噬菌体的蛋白质和DNA,下列被标记的部位组合正确的是()A.①④B.①③C.①②D.②④9.以下四个选项中属于血红蛋白结构简式的是()A.B.C.D.10.生活在沙漠中的生物,其细胞中含量最多的化合物是()A.水B.无机盐C.糖类D.蛋白质11.下列关于细胞内化合物的叙述,正确的是()A.水是细胞内唯一的溶剂,不参与细胞内的化学反应B.哺乳动物血液中Ca2+含量过低,会引发抽搐C.葡萄糖是细胞内最重要的贮能物质D.蛋白质的空间结构发生改变,不会影响生物学活性12.细胞的遗传物质是()A.糖类 B.糖类和脂质 C.核酸D.核酸和蛋白质13.蓝细菌和黑藻等大量繁殖会形成水华,影响水质和水生动物的生活。
上海市市西中学2023-2024学年高一上学期期中考试数学试卷
上海市市西中学2023-2024学年高一上学期期中考试数学试卷学校:___________姓名:___________班级:___________考号:___________一、填空题二、单选题①M 中的元素都不是P 的元素;②M 中有不属于P 的元素;③M 中有P 的元素;④M 中的元素不都是P 的元素.A .1B .2C .3D .413.已知:奇函数()y f x =,x ∈R 在()0,∞+严格递减,则下列结论正确的是()A .()y f x =在(),-∞+∞严格递减B .()y f x =在(],0-∞上严格递减C .()y f x =在[](),10a a a +≥上严格递减D .()y f x =在[]2,1a a -上严格递减14.设()()3,01,0x x f x f x x ⎧<⎪=⎨-≥⎪⎩,若()f x x a =+有且仅有三个解,则实数a 的取值范围是()A .(),1-∞B .()1,2C .()0,2D .(),2-∞三、解答题15.解关于x 的不等式:()22240x a x a -++>.16.(1)利用定义证明:函数()33f x x x =+-在(),-∞+∞上单调递增.(2)求方程330x x +-=的实数解(精确到0.1).17.如图,正方形ABCD 的边长为2,E 为边AB 上的一点,,(02)EB a a =<<.F 为线段ED 上的一点,FG BC ⊥,垂足为G ,FH CD ⊥,垂足为H .(1)设FG x =,试将矩形FGCH 的面积S 表示成关于x 的函数;(2)求矩形FGCH 的面积S 的最大值.18.已知定义在实数集R 上的偶函数()y f x =和奇函数()y g x =满足()()12x f x g x ++=.(1)求函数()y f x =和()y g x =的解析式;(2)设:()2221h x x mx m m =++-+(其中m 为常数),若:()22h g x m m ⎡⎤≥--⎣⎦对于[]1,3x ∈恒成立,求m 的取值范围.。
2024届上海市高一上学期期中考试英语试卷及答案
2023-2024学年高一第一学期期中考试英语试卷考生注意:1.本场考试时间120分钟,满分150分.2.作答前,考生在答题纸正面填写学校、姓名、考生号,粘贴考生本人条形码.3.所有作答务必填涂或书写在答题纸上与试卷题号对应的区域,不得错位.在草稿纸、试卷上作答一律不得分.4.用2B铅笔作答选择题,用黑色笔迹钢笔、水笔或圆珠笔作答非选择题.I.Listening Comprehension(30分)Section A(10*1=10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.At8:30.B.At9:00. C.At9:30. D.At10:00.2.A.Daughter and son. B.Father and daughter. C.Husband and wife. D.Mother and son.3.A.In a bank.B.In a post office.C.In a supermarket. D.In a restaurant.4.A.A policeman. B.A lawyer. C.A sales manager.D.A coach.5.A.Catch a train home.B.Do her homework. C.Go to the theater. D.Go to work.6.A.John didn’t do well in the exam.B.John doesn’t worry about the exam result.C.The exam was easier than the previous one.D.John is sure that he will do better in the next exam.7.A.The man couldn’t leave the parcel here.B.Some information is required.C.The details of the parcel are needed.D.The privacy of the owner is guaranteed.8.A.She is not available tonight. B.She is looking forward to the next party.C.She is going to hold a party next time.D.She is sorry for not being able to attend.9.A.The room is really dirty.B.The room is not as dirty as the woman expects.C.In the woman’s eyes,the room is not dirty.D.The man doesn’t think the room is dirty.10.A.Taking the doctor’s advice completely. B.Drinking a little every day.C.Serving a moderate(适量的)amount of alcohol.D.Giving up smoking and drinking. Section B(10*2=20分)Directions:In Section B,you will hear several longer conversation(s)and short passage(s),and you will be asked several questions on each of the conversation(s)and the passage(s).The conversation(s) and passage(s)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.Mother’s shouting. B.The unusual smell.C.The terrible sound.D.The heat of the fire.12.A.At the supermarket. B.In the kitchen.C.In the bed.D.In the living room.13. A.She forgot to turn off the stove.B.It took long to put out the fire.C.She would probably be punished by her mother.D.She would have to study music against her will.Questions14through16are based on the following passage.14.A.Because they want to relax. B.Because they have a lot of leisure time.C.Because they are looking for fun.D.Because they want to find something valuable.15. A.They are tired of luxurious but not practical goods.B.They want to get value for money.C.They appreciate the real crafts of the old workman.D.They consider the price of used goods reasonable.16.A.Popularity of second-hand books. B.Real artist works in the past.C.A real bargain in local bookstores.D.A new fashion about second-hand goods.Questions17through20are based on the following conversation.17. A.He is a musician. B.He is interested in computer programming.C.He advertised his room for rent.D.He’s living with some other students now.18. A.In the newspaper. B.On campus(大学校园).C.At the neighborhood.D.On the college brochure.19.A.It must be in a good condition. B.It must have clean surroundings.C.It should guarantee her privacy.D.It doesn’t cost much to rent.20. A.Amy will share the house with Tom. B.Amy is not easy to live with.C.Tom is also the owner of the house.D.Amy and Tom are both studying in college.II..Grammar and Vocabulary.(24分)Section A(10*1=10分)Directions:Beneath each of the following sentences there are four choices marked A,B.C and D.Choose the one answer that best completes the sentence.A LETTER TO MY DAUGHTERDear Daughter,I know perhaps you will be surprised to read this:I remember well what it was like to be a teenager.As I watch you prepare for your first day of senior high school,there are a few things I want you __21____(know).You may___22____(put)yourself under pressure to make sure that everything is perfect for that first day,but I want you to know that there’s no such thing as perfect.I___23____(say)it before,but it bears___24___(repeat).There is nothing perfect.There is only good enough,but___25___is mostimportant is believing you’re enough —just as you are.Also,remember___26____you’re not in this boat alone.You’re not the only one facing a new school,new classmates,new teachers,new expectations and new pressures.__27____some point,everyone else is —or was —where you are right now.I hope you find comfort in that.There might be some people who will not always be so friendly to you.You will find such people not only in senior high school,but throughout your adult life..As you go forward into this new chapter in your life,I hope you’ll realize early that most often we ___28__(hold)back by the limitations we put on ourselves —by the stories we tell ourselves aboutwho and what we are.___29___you’re tempted to say,“I can’t ...”or “I’m not ...”about ___30___you really want to achieve,I hope you’ll change that story —becauseyou can and you are.Section B (10*1=10分)Directions:Fill in each blank with a proper word chosen from the box.Each word can be used only once.Note that there is one word more than you need.This is a story about how a foreigner got confused about a Mexican word even though she could speak ____31____Spanish.It happened when she ___32____foot on Mexican soil for the first time.She asked an ice-cream seller for an ice-cream,and he said “ahorita.”She thought it would be ____33_____immediately because the word can be directly translated to “right now.”But she waited for half an hour and still no ice-cream came.When she asked the seller about it,he said “ahorita”again,with his face showing ____34_____.She felt ____35___between waiting and walking away.Finally,she had to go home,so she ____36___to the seller that she could not wait any longer.Years later back in Mexico,she came to realise that the meaning of “ahorita”changes according to its ____37____.It could mean “tomorrow,”“within five years,”“never,”or even “no,thanks”when one wants torefuse an ___38____.“Ahorita Time”is a ___39___of different cultural understandings of time.That is,understanding “ahorita”takes not a fluency in the language,but a fluency in the_____40______.Section C (4*1=4分)Directions :Complete the following sentences by using the words in the box.Each word in the box can only be used once.There are two words more than you need _____41.______thinking is essential for students when they are writing.42.The students had high _____________for their future.43.Have you any ____________to make upon my article?44.I was _____________by his comments about my clothes.III.Reading Comprehension (55分)Section A (15*1=15分)Directions:For each blank in the following passage there are four words orA.blankB.temptationmentsD.embarrassedE.creativeF.expectations A.confusionB.deliveredC.reflectionD.offerE.contextF.setG.signaled H.fluent I.torn J.culture K.genuinephrases marked A,B,C and D.Fill in each blank with the word or phrase that best fits the context.People think children should play sports.Sports are fun,and playing with others.However, playing sports can have__45effects on children.It may produce feelings of poor self-respect or aggressive(好斗的,挑衅的)behavior in some children.According to research on kids and sports, 40,000,000kids play sports in the US.Of these,18,000,000say they have been46at or called names(被骂)while playing sports.This leaves many children with a bad__47_of sports.They think sports are just too aggressive.Many researchers believe adults,especially parents and coaches,are the main_48of too much aggression in children's sports.They believe children49aggressive adult behavior.This behavior is then further strengthened(巩固,加强)through both positive and negative feedback.Parents and coaches are powerful teachers because children usually look up to them.Often these adults behave aggressively themselves,sending children the message that50is everything.Many parents go to children's sporting events and shout_51_at other players or cheer when their child behaves52.As well, children arc even taught that hurting other players is53or are pushed(督促,逼迫)to continue playing even when they are injured.54,the media makes violence(暴力)seem exciting. Children watch adult sports games and see violent behavior replayed over and over on television.As a society,we really need to55this problem and do something about it.Parents and coaches56should act as better examples for children.They also need to teach children better 57.They should not just cheer when children win or act aggressively.They should teach children to58,themselves whether they win or not.Besides,children should not be allowed to continue to play when they are injured.If adults allow children to play when injured,this gives the message that59is not as important as winning.45.A.restrictive B.negative C.active D.instructive46.A.knocked B.glanced C.smiled D.shouted47.A.impression B.concept C.taste D.expectation48.A.resource B.cause C.course D.consequence49.A.question B.understand C.copy(模仿) D.neglect50.A.winning B.practising C.fun D.sport51.A.praises B.orders C.remarks D.insults(侮辱)52.A.proudly B.ambitiously C.aggressively D.bravely53.A.acceptable B.impolite C.possible D.accessible54.A.By contrast B.In addition C.As a result D.After all55.A.look up to B.face up to C.make up for e up with56.A.in particular(尤其)B.in all C.in return D.in advance57.A.techniques B.means C.values(价值观) D.directions58.A.respect B.relax C.forgive D.enjoy59.A.body B.fame C.health D.spiritSection B(16*2=32分)Directions:Read the following four passages.Each passage is followed byseveral 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)Even at school there had been an unhealthy competition between George and Richard.“I’ll be the first millionaire in Coleford!”Richard used to boast.“And you’ll be sorry you knew me,”George would reply“because I’ll be the best lawyer in the town!”George never did become a lawyer and Richard never made any money.Instead both men opened bookshops on opposite sides of Coleford High Street.It was hard to make money from books,which made the competition between them worse.Then Richard married a mysterious girl.The couple spent their honeymoon on the coast—but Richard never came back.The police found his wallet on a deserted beach but the body was never found. He must have drowned.Now with only one bookshop in town,business was better for George.But sometimes he sat in his narrow,old kitchen and gazed out of the dirty window,thinking about his formal rival(竞争对手). Perhaps he missed him?George was very interested in old dictionaries.He’d recently found a collector in Australia who was selling a rare first edition.When the parcel arrived,the book was in perfect condition and George was delighted.But while he was having lunch,George glanced at the photo in the newspaper that the book had been wrapped in.He was astonished—the smiling face was older than he remembered but unmistakable! Trembling,George started reading.“Bookends have bought ten bookstores from their rivals Dylans.The company,owned by multi-millionaire Richard Pike,is now the largest bookseller in Australia.”60.George and Richard were______at school.A.roommatesB.good friendspetitorsD.booksellers61.How did George feel about Richard after his disappearance?A.He envied Richard’s marriage.B.He thought of Richard from time to time.C.He felt lucky with no rival in town.D.He was guilty of Richard’s death.62.George got information about Richard from______.A.a dictionary collector in AustraliaB.the latter’s rivals DylansC.a rare first edition of a dictionaryD.the wrapping paper of a book63.What happened to George and Richard in the end?A.Both George and Richard became millionaires.B.Both of them realized their original ambitions.C.George established a successful business while Richard was missing.D.Richard became a millionaire while George had no great success.(B)The Best Way to See Singapore.See More for Less!City Sightseeing$33/A,$23/C,FREE/T24hours of Unlimited Touring–9a.m.to6p.m.Duration:1day(unlimited rides)Attractions:Civic District,Orchard Road,BotanicGardens,Little India,Chinatown&more along the City& Heritage routes.It is easy to enjoy Singapore with the City Sightseeing open-top touring system.Spot an interesting place or sight?Simply hop off and walk around and you can continue the tour later by hopping on the next bus.With one bus arriving every20minutes,the City Sightseeing system links you to major sights,attractions and hotels!*Guests Helpline:6338–6877DUCK$33/A,$23/C,$2/TDaily:9:30a.m.–5:30p.m.Duration:60minutesRide the original DUCK!Hop on this amphibious(两栖的)craft for a sightseeing tour which covers both land and sea!*Free bus transfer;most popular tour;1st and original DUCK;unique land&sea adventure.*For More Information,call6338–6859.Night Sa fari$49/A,$33/C,FREE/TTour Time:6:00p.m.–10:00p.m.Duration:4hoursObserve the night activities of the1,000over nocturnal(夜间活动的)animals in the Night Safari–the world’s firstwildlife night park,for an adventure you’ll never forget.*Free&easy with2-way bus transfer.*For More Information,call6338–6826.Flyer$53/A,$37/C,Free/TOpen Hours:Daily9:00a.m.–9:00p.m.Duration:30minutesFeast your eyes on Singapore’s magnificent cityscape from aheight of165metres on the world’s largest observationwheel.Get your cameras ready as you experience a360-degree panoramic(全景的)view of the city and the Marina Bay area.*Free bus transfer;free river transfer.*For More Information,call6338–3311A–adult,C–children(3-12),T–toddler(2&below)64.If David and his9-year-old son are both animal lovers,they had better dial for more information before their tour.A.6338–6859B.6338–6826C.6338–3311D.6338–687765.John wants to have a bird’s-eye view of the whole city of Singapore during his short stay there, so is his best choice.A.City SightseeingB.DUCKC.Night SafariD.Flyer66.Mr.Smith is going to take his wife,his13-year-old daughter and his1-year-old son to visit Singapore at their own leisurely pace,he should get at least ready.A.$89B.$91C.$99D.$10167.What is the most suitable item for Peter to choose who loves adventure and he has only one free hour to tour?A.City SightseeingB.DUCKC.Night SafariD.Flyer(C)Fishy Weather ConditionsLaj amanu,Australia,is a dry little town,sitting right on the edge of the Tanami desert.Can you imagine how surprised people were when live fish rained down on them from a darkgray cloud.It happens that there are similar cases in England and Honduras.How do clouds make fishy?The simple answer is that they don’t.There is a particular weather phenomenon(现象)called a waterspout.A waterspout is just like a tornado(龙卷风),only it forms above oceans,lakes,or rivers.Like a tornado,a waterspout moves in a circle at high speeds.When it moves above the water,it tends to carry the fish with it,as well as frogs orother small plants or animals.Scientists couldn’t work it out at first.To make matters stranger still,the fish in Honduras were very much alive when they rained down to the ground,but they were all blind.In England and Australia,it rained fish and snakes,and none were blind.It was difficult to puzzle out,but the blind fish gave them a place to start.Scientists knew that some fish that lived in deep,underground caves with no light sources often lost their eyesight.So when blind fish rained down on Honduras,scientists began toconnect some clues(线索,提示).Clearly,these particular fish were pulled from an underground water sourceby force.It has rained fish on every continent,and each time,people have tried in various ways to explain this strange phenomenon.Historically,villagers thought the“fishes from the heavens”might be answers to prayers(祈祷)for food.Others suggested that floods overran river banks and oceans,leaving the fish on the city streets.No scientist had actually seen the rain as it occurred, only the fish left on the ground.But in1990,a National Geographic team happened to be in Honduras when the Rain of Fishes began.They recorded what was happening and made historyby finally proving that the fish really did fall from the sky.This huge breakthrough wasn’t just a spot of good luck.It changed thousands of yearsof myths(虚构的事;谬论)and legends into true stories and provided scientific explanations for how fish came to live in deep caves.It explained ancient cave paintings and cast(投射光线)new light on how species have spread over time.It turned out to be a lot more than just a little fishy weather.68.According to the passage,a waterspout________.A.can make animals blindB.is difficult to catch on filmC.can carry items(物品)with itD.is a dangerous sea creature69.The blind fish made the scientists start to think that________.A.raining fish was a warning of natural disastersB.animals changed to match their environmentsC.the weather system differed from place to placeD.the waterspout theory seemed more possible70.The first sentence in the last paragraph probably suggests that________.A.waterspouts came to be a center of scientific researchB.the scientists were fortunate to have made their discoveriesC.hard work went into determining the cause for the raining fishD.the scientists relied heavily on unusual events to drive their studies71.The author writes the passage to________.A.explain what caused the fishy weatherB.describe the magic phenomenonC.persuade people to protect the environmentD.encourage people to do scientific research(D)A study involving8,500teenagers from all social backgrounds found that most of them are ignorant(无知的)when it comes to money.The findings,the first in a series of reports from NatWesl that has started a five-year research project into teenagers and money,arc particularly worrying as this generation of young people is likely to be burdened with greater debts man any before.University tuition fees(学费)are currently capped at£3,000annually,but this will be reviewed next year and the Government is under enormous pressure to raise the ceiling.In the research,the teenagers were presented with terms(条款)of four different loans but 76per cent failed to identify the cheapest.The young people also predicted that they would be earning on average£31.000by the age of25,although the average salary for those aged22to29is just£17,815.The teenagers expected to be in debt when they finished university or training,although half said that they assumed the debts would be less than£10.000.Average debts for graduates are £12,363.Stephen Moir,head of community investment at the Royal Bank of Scotland Group which owns NatWest,said."The more exposed young people are to financial issues,and the younger they become aware of them,the more likely they arc to become responsible,forward-planning adults who manage their finances confidently and effectively."Ministers are deeply concerned about the financial pressures on teenagers and young people because of student loans and rising housing costs.They have just introduced new lessons in how to manage debts.Nikki Fairweathcr.aged15.from St Helens,said that she had benefited from lessons on personal finance,but admitted that she still had a lot to learn about money.72.Which of the following can be found from the five-year research project?A.Students understand personal finances differently.B.University tuition fees in England have been rising.C.Teenagers tend to overestimate their future earnings.D.The students'payback ability has become a major issue.73.The phrase"to raise the ceiling"in paragraph2probably means"______".A.to raise the student loansB.to improve the school facilitiesC.to increase the upper limit of the tuition(学费)D.to lift the school building roofs74.According to Stephen Moir,students_______.A.are too young to be exposed10financial issuesB.should learn to manage their finances wellC-should maintain a positive attitude when facing loansD.benefit a lot from lessons on personal finance75.What can we learn from the passage?A.Many British teenagers do not know money matters wellB.Teenagers in Britain are heavily burdened with debts.C.Financial planning is a required course at college.D.Young people should become responsible adults.Section C(8分)Directions: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.Its goal is to have good,clean,fair food for all people.B.Today,there are great concerns about the way people grow and produce food.C.It should arrive on our plates in the cleanest and most environmentally responsible way.D.All people should be able to purchase healthy food.E.This event wasn’t the only thing that started the Slow Food Movement.F.Today the Slow Food Movement has already expanded out of Italy.The Slow Food Movement started in Rome,Italy in1986.When a new McDonalds was opening near a beautiful historic place,some people stood outside the restaurant and shouted,“We do not want fast food.We want slow food!”(76)________One day Carlo Petrini went to a restaurant to eat a traditional meal.But thefood didn’t taste the same as he remembered.He learned that the peppers were shipped from abroad because the prices were low.This deeply concerned Carlo.Carlo wanted people to care about where their foods came from and how their foods madetheir culture special.So he started a group to encourage this idea.It soon became the Slow Food Movement.(77)________First,what is good food?Good food is fresh.The vegetables are eaten close to the placewhere they are grown.The fish hasn’t been sitting for days before it is eaten.Good food is seasonable.It should be grown at the best time of the year for that food.Good food satisfies the senses.It should look good,smell good and taste good.And finally,good food is cultural food. Each country has special foods that make it different.Second,food should be clean.(78)________Farmers use chemicals to kill insects andfeed plants.But the chemicals can also harm the natural environment around farms.Over time, they can cause health problems in people too.Clean food means food that does not harm our bodies or the environment.And third,food should be fair.Food should not cost too much money.(79)________Thepeople who grow and make food should be paid fairly for their work.They should work in safe, Healthy conditions.第二卷I.Translation.(3+4+4+5=16分)80.作为学生,我们不应该无视校纪校规。
上海市高一上学期数学期中考试试卷含答案(共3套)
上海高一上学期期中考试试卷数学(满分100分,考试时间100分钟)一、 填空题(每题3分,共30分) 1. 若集合{}2=1,A x xx R ≤∈,{}2=,B y y x x R =∈,则AB =______.2. 函数1x y +=的定义域是 .3. 函数()fx 是1,b a ⎡⎤-⎣⎦上的奇函数,且,a b R+∈,则a b ⋅的最大值为 .4. 已知()2y f x x=+是奇函数,且()11f =.若()()2g xf x =+,则()1g -=____.5. 已知不等式11axx <-的解集为()()12,,-∞+∞,则a= .6.函数y =单调递减区间是 .7. 已知函数()fx 在(),-∞+∞上是增函数,,a b R ∈,那么命题“如果0a b +≥,则()()()()f a f b f a f b +≥-+-”的逆命题的真假性是 .(填:真或假)8. 若关于x 的不等式222x x a -+≥-无解,则实数a 的取值范围是 . 9. 已知()10=10,,x fx x ⎧≥⎨-<⎩,则不等式()()225x x f x ++⋅+≤的解集是 .10. 已知函数()f x 的定义域为R ,则下列命题中:①若()2f x -是偶函数,则函数()f x 的图像关于直线2x =对称;②若()()22fx f x +=--,则函数()f x 的图像关于原点对称;③函数()2y f x =+与函数()2yx f =-的图像关于直线2x =对称;④函数()2fx -与函数()2yx f =-的图像关于直线2x =对称.其中正确的命题序号是 .二、 选择题(每小题4分,共16分)11.下列各组函数中,表示同一函数的是()【A 】1,x y y x ==【B 】11y x x =-⋅+,21y x =- 【C 】33,y x y x == 【D 】()2,y x y x ==12.如果,a b 为非零实数,则不等式11a b>成立的充要条件是( ) 【A 】0a >且0ab < 【B 】0a <且0ab > 【C 】0a >或0ab >【D 】220a b ab -<13.对于函数()f x ,若()()250f f -⋅<,则() 【A 】函数()f x 在区间(]2,5-上一定有零点 【B 】函数()f x 在区间(]2,5-上一定无零点 【C 】函数()f x 在区间(]2,5-上一定有两个零点 【D 】函数()f x 在区间(]2,5-上可能无零点14.已知函数23,1f(x)2,1x x x x x x ⎧-+≤⎪=⎨+>⎪⎩,设a R ∈,若关于x 的不等式()2x f x a ≥+在R 上恒成立,则a 的取值范围是( ) 【A 】47,216⎡⎤-⎢⎥⎣⎦【B 】4739,1616⎡⎤-⎢⎥⎣⎦【C 】23,2⎡⎤-⎣⎦【D 】3923,16⎡⎤-⎢⎥⎣⎦三、解答题(共54分) 15. (本题满分10分) 已知集合2212x A x +⎧⎫=<⎨⎬-⎩⎭,{}254B x x x =>-,{}1,C x x m m R =-<∈,(1)求A B ;(2)若()A B C ⊆,求m 的取值范围.16. (本题满分10分)已知函数2()32f x x ax b =--,其中,a b R ∈ (1)若不等式()0f x ≤的解集是[0,6],求与的值;(2)若3b a =,对任意x R ∈,都有()0f x ≥,且存在实数x ,使得2()23f x a ≤-,求实数a 的取值范围.17. (本题满分10分)迎进博,要设计如图的一张矩形广告,该广告含有大小相等的左右三个矩形栏目,这三栏的面积之和为260000cm ,四周空白的宽度为10cm ,栏与栏之间的中缝空白的宽度为5cm ,(1)怎样确定矩形栏目高与宽的尺寸,能使整个矩形广告面积最小,并求最小值;(2)如果要求矩形栏目的宽度不小于高度的2倍,那么怎样确定广告矩形栏目高与宽的尺寸,能使整个矩形广告面积最小,并求最小值.18. (本题满分12分)已知函数1()()x af x x a a x+-=≠-.(1)求(2)()f a x f x -+的值;(2)当的定义域为1,12a a ⎡⎤++⎢⎥⎣⎦时,求()f x 的值域; (3)设函数2()()()g x x x a f x =+-,若1322a ≤≤,求g()x 的最小值.19. (本题满分10分) 已知函数()2,my f x x x==++(m 为实常数)(1)若函数()y f x =图像上动点(,)P x y 到定点(0,2)Q ,求实数m 的值; (2)若函数()y f x =在区间[)2+∞,上是增函数,试用函数单调性的定义求实数m 的取值范围; (3)设0m <,若不等式()f x kx ≤在1,12x ⎡⎤∈⎢⎥⎣⎦有解,k 的取值范围.参考答案一、填空题(本大题共有 10 小题,每题3分,共 30 分)1.=01,AB ⎡⎤⎣⎦2.()()110,,-∞-- 3.144.-15.126.322,⎡⎤⎢⎥⎣⎦7.真 8.3a ≥或1a ≤ 9.32x ≤10.①④二、选择题(本大题共有 4小题,每题4分,共 16 分)11.C 12.D 13.A 14.A三、解答题(本大题共5小题,15-17题每题10分,18-19题每题12分,共54分)15.解:(1)根据题意,由 2212x A x +⎧⎫=<⎨⎬-⎩⎭得: 224104222x x x x x ++<⇒<⇒-<<-- 由{}254B x x x =>-得:1x >或5x <- 由{}1,C x x m m R =-<∈得:11m x m -<<+ 得: (1,2)A B =(2)因()A B C ⊆则111212m m m -≤⎧⇒≤≤⎨+≥⎩综上所述,结论是:实数m 的取值范围是12m ≤≤16.解:(1)依题意,206,0633a b+=⨯=-解得2()32f x x ax b =-- (2)若3b a =,则2()323f x x ax a =--依题意,224+36036422123a a a a a ⎧≤⎪⎨--≤-⎪⎩,所以,96a -≤≤-或0a =为所求17.解:(1)设矩形栏目的高为acm ,宽为bcm ,则20000ab =,所以20000b a= 广告的高为(20)a cm +,宽为(330)b cm +(其中0,0a b >>) 广告的面积40000(20)(330)30(2)6060030()606004000030260600120006060072600S a b a b a aa a=++=++=++≥⋅⋅+=+=当且仅当40000a a=,即200a =时,取等号,此时100b =. 故当广告矩形栏目的高为200cm ,宽为100cm 时,可使广告的面积最小为272600cm(2)由题2b a ≥,20000b a =,解得0100a <≤ 由(1)可得4000030()60600S a a=++ 当100a =时,广告的面积最小为275600cm故当广告矩形栏目的高为100cm ,宽为400cm 时,可使广告的面积最小为275600cm18.解(1)112()(2)()2a x x a a x f a x f x x a a x x a-++---+=+==----(2)函数11()()1x a f x x a a x a x+-=≠=-+--当112a x a +≤≤+时,11,2a x a --≤-≤--11,2a x -≤-≤-121a x-≤≤-- 于是1312a x-≤-+≤-- 得()f x 值域为[]3,2--.(3)当1a =时,2()(1)g x x x x =+≠-(i) 当0x ≥时,211g()()24x x =+-则函数()g x 在[0,)+∞上单调递增min ()(0)0g x g ==(ii) 当0x ≤时,211g()()24x x =--则函数g()x 在(,0]-∞且1x ≠-时单调递减min ()(0)0g x g ==综合得:当1x ≠-时,g()x 的最小值是019.解:(1)设(,)P x y 则2,my x x=++ 222(2)PQ x y =+-22222m x m x=++2m ≥+=2当0m >时,解得1m =;当0m <时,解得1m =-1m ∴=或1m =(2)由题意,任取[)12,2,x x ∈+∞,且12x x <则121221212112()()2(2)()0x x m m mf x f x x x x x x x x x =-=++-++=-⋅> 21120,4x x x x ->>所以4m ≤;m ∴的取值范围(],4-∞(3)由()f x kx ≤,得2mx kx x++≤ 212,1,12m x k x x ⎡⎤∈∴++≤⎢⎥⎣⎦令1tx=,则1,12x⎡⎤∈⎢⎥⎣⎦有解,当且仅当[]min()(1,2)k g t t≥∈0m<min()(1)3g t g m∴=-+综上, 当23m≤-时,[)45,k m∈++∞当23m-<<时, [)3,k m∈++∞高一第一学期期中考试数学试卷一、填空题1.已知集合{}1,0,1,7A =-,则集合A 的非空真子集的个数为______. 2.不等式123x-<<的解集为______. 3..函数()3x f x +=的定义域是______.4.若{}3,2,1,0,1,2,3U =---,{}210,A x x x =-≤Z ,{}13,B x x x =-≤≤∈Z ,则A B ⋂=______. 5.设集合{}{},T =∅∅,则下列命题:①T ∅∈;②T ∅⊆;③{}T ∅∈;④{}T ∅⊆.其中正确的是______.(写出所有正确命题对应的序号)6.若集合{x y ==R ,则实数a 的取值范围是______.7.如果全集U 含有12个元素,P 、Q 都是U 的子集,P Q ⋂中含有2个元素,P Q ⋂含有4个元素,P Q ⋂含有3个元素,则P 含有______个元素.8.叶老师和王老师两人一起去粮店打酱油共三次,叶老师每次打100元酱油,而王老师每次打100斤酱油,由于酱油市场瞬息万变,每次打的酱油价格都不相同,分别为a 元、b 元、c 元,则三次后两人所打酱油的平均价格较低的是______老师,理由是______(请写出关键的不等式). 9.对于集合M ,定义函数()11M x Mf x x M-∈⎧=⎨∉⎩,对于两个集合A 、B ,定义集合()(){}1A B A B x f x f x *=⋅=-,已知集合{}A x =>,()(){}330B x x x x =-+>,则A B *=______.10.已知1a 、2a 、3a 与1b 、2b 、3b 是6个不同的实数,若关于x 的方程123123x a x a x a x b x b x b -+-+-=-+-+-的解集A 是有限集,则集合A 中最多有______个元素. 二、选择题11.命题“若p 不正确,则q 不正确”的逆命题的等价命题是( ) A .若q 不正确,则p 不正确 B .若q 不正确,则p 正确 C .若p 正确,则q 不正确D .若p 正确,则q 正确12.已知a ,b ∈R ,则“1a <,1b <”是“不等式1ab a b +>+”成立的( )条件 A .充分非必要B .必要非充分C .充要D .既不充分又不必要13.已知()f x 在[],x a b ∈的最大值为M ,最小值为m ,给出下列五个命题: ①若对任何[],x a b ∈都有()p f x ≤,则p 的取值范围是(],M -∞ ②若对任何[],x a b ∈都有()p f x ≤,则p 的取值范围是(],M -∞ ③若关于x 的方程()p f x =在区间[],a b 有解,则p 的取值范围是[],m M ④若关于x 的不等式()p f x ≤在区间[],a b 有解,则p 的取值范围是(],m -∞ ⑤若关于x 的不等式()p f x ≤在区间[],a b 有解,则p 的取值范围是(],M -∞ 其中正确命题的个数为( ) A .4B .3C .2D .114.设集合{}110P x ax =+>,{}2220P x x ax =++>,{}210Q x x x b =++>,{}2220Q x x x b =++>,其中a ,b ∈R 下列说法正确的是( )A .对任意a ,1P 是2P 的子集;对任意的b ,1Q 不是2Q 的子集B .对任意a ,1P 是2P 的子集;存在b ,使得1Q 是2Q 的子集C .存在a ,使得1P 不是2P 的子集;对任意的b ,1Q 不是2Q 的子集D .存在a ,使得1P 不是2P 的子集;存在b ,使得1Q 是2Q 的子集 三、解答题15.设0a >,0b >,且11a b a b+=+,证明: (1)2a b +≥;(2)22a a +<与22b b +<不可能同时成立.16.已知集合()(){}23210A x x m x m =-+++=,(){}223120B x x n x =+++=,其中m ,n ∈R . (1)若A B A ⋂=,求m 、n 的值; (2)若A B A ⋃=,求m 、n 的取值范围.17.已知命题P :函数()()113f x x =-且()f a a <,命题Q :集合(){}2210,A x x a x x =+++=∈R ,{}0B x x =>且A B ⋂=∅.(1)若命题P 、Q 中有且仅有一个为真命题,求实数a 的取值范围;(2)若命题P 、Q 均为真命题时的实数a 的取值范围;(3)由(2)得结论,a 的取值范围设为集合S ,若,,,0m T y y x x m x x ⎧⎫==+∈>≠⎨⎬⎩⎭R ,若T S ⊆,求实数m 的范围.18.2020年初,有一种高危传染病在全球范围内传播,中国东部沿海某市总人口约200万人,根据分析其中约有1000名传染者,为了防止疾病继续扩散,疾病预防控制中心现决定对全市人口进行血液检测以筛选出被感染者,由于检测试剂十分昂贵且数量有限,需要将血样混合后一起检测以节约试剂,已知感染者的检测结果为阳性,未被感染者为阴性,另外检测结果为阳性的血样与检测结果为阴性的血样混合后检测结果为阳性,同一检测结果的血样结合后结果不发生改变.(1)若对全市人口进行平均分组,同一分组的血样将被混合到一起检测,若发现结果为阳性,则再在该分组内逐个检测排查,设每个组x 人,那么最坏情况下,需要进行多少次检测可以找到所有的被感染者?在当前方案下,若要使检测的次数尽可能少,求每个分组的最优人数是多少?(2)在上题的检测方案中,对于检测结果为阳性的组取逐一检测排查的方法并不是很好,或可将这些组的血样再进行一次分组混合血样检测,然后再进行逐一排查,仍然考虑最坏的情况,请问两次要如何分组,使检测总次数尽可能少;(3)在上题的检测方案中,进行了两次分组混合血样检测,仍然考虑最坏情况,若再进行若干次分组混合血样检测,是否会使检测次数更少?请给出最优的检测方案.高一期中数学试卷参考答案一、填空题1.14 2.11,,23⎛⎫⎛⎫-∞-⋃+∞ ⎪ ⎪⎝⎭⎝⎭3.{}03x x x <≠-且 4.{}23, 5.①②③④ 6.3a ≤- 7.58.王老师,22a b ab a b +>+ 9.()[)(),30,13,-∞-⋃⋃+∞10.3 二、选择题11.D 12.A 13.B 14.B三、解答题15.(1)证明略;(2)证明略.16.(1)122m n ⎧=-⎪⎨⎪=-⎩或12m n =⎧⎨=-⎩; (2)5,13m n ∈⎧⎪⎨⎛⎫∈- ⎪⎪⎝⎭⎩R 或21m n =-⎧⎨=⎩或053m n =⎧⎪⎨=-⎪⎩或122m n ⎧=-⎪⎨⎪=-⎩. 17.(1)(][)5,47,a ∈--⋃+∞; (2)()4,7a ∈-; (3)(]0,4m ∈.18.(1)在最坏情况下,需要进行62101000x x⨯+次检测可以找到所有的被感染者,在当前方案下,若要使检测的次数尽可能少,每个分组的最优人数是45:(2)第一次每个组159人,第二次每个组13人,可使总次数尽可能少;(3)进行这样的检测18次,即可得到总次数更少.上海市第一学期高一数学期中考试试卷时间:90分钟 满分:100分一、填空题1.已知全集{}0,1,2,3=U ,集合{}2,3=A ,{}1,4=B ,则⋂=A B ______.2.若“2=x ”是“220-+=x x c ”的充分条件,则=c ______.3=______.4.已知2336==a b ,则11+=a b ______. 5.当2>x 时,122+-x x 的最小值为______. 6.关于x 的一元二次不等式210++>ax bx 的解集是()1,3-,则-a b 的值为______.7.若存在实数x ,使得12-++<x x a 成立,则实数a 的取值范围为______.8.已知集合(){}21320=-+-=A x m x x 有且仅有两个子集,则实数=m ______. 9.定义运算,,≤⎧*=⎨>⎩x x y x y y x y ,若11-*=-m m m ,则m 的取值范围为______.10.已知正数a 、b 满足()lg 4lg lg +=+a b a b ,则+a b 的最小值为______.11.已知集合()(){}{210==--+-=M M x x a x ax a 各元素之和等于3.则实数=a ______.12.已知关于x 的不等式组()2228022770⎧-->⎪⎨+++<⎪⎩x x x k x k 仅有一个整数解,则实数k 的取值范围______. 二、选择题13.()3<∈a a R 成立的一个必要不充分条件( )A .3<aB .2<aC .29<aD .02<<a14若>a b ,>c d ,则下列结论正确的是( )A .+>+a d b cB .>ac bdC .>a b c dD .-<-d a c b15.“对任意的∈x R ,3210-+≤x x ”的否定形式是( )A .不存在∈x R ,使∈x R ,3210-+≤x xB .存在∈x R ,使∈x R ,3210-+≥x xC .存在∈x R ,使∈x R ,3210-+>x xD .对任意∈x R ,使∈x R ,3210-+>x x16.在整数集Z 中,被6除所得余数为k 的所有整数组成一个“类”,记为[]k ,即[]{}6=+∈k n k n Z ,1=k ,2,3,4,5给出以下五个结论:①[]55-∈;②[][][][][][]012345=⋃⋃⋃⋃⋃Z ;③“整数a 、b 属于同一“类””的充要条件是“[]0-∈a b ”; @“整数a 、b 满足[]1∈a ,[]2∈b ”的充要条件是“[]3+∈a b ”,则上述结论中正确的个数是( )A .1B .2C .3D .4 三.解答题17.已知集合{}0,1=A ,{}()11,lg ,20=->a B a a a ,请用反证法证明:{}1⋂=A B . 18.已知实数x 满足210-+=x mx ,求:(1)22-+x x (用m 表示);(2)1--x x (用m 表示).19.已知20,3⎧-⎫=<∈⎨⎬+⎩⎭x A x x R x ,{}10=-=B x ax ,且⋂=A B B ,求实数a 的取值范围. 20.设二次函数()2=++f x ax bx c ,其中a ,b ,∈c R .(1)若=b a ,4=-c ,且关于x 的不等式()28200-+<x x f x 的解集为R ,求a 的取值范围; (2)若1=a ,21=-b k ,2=c k ,方程()0=f x 有两个大于1的根,求实数k 的取值范围.21.数学运算是指在明晰运算对象的基础上,依据运算法则解决数学问题的素养.因为运算,数的威力无限;没有运算,数就只是一个符号,对数运算与指数那运算是两类重要的运算.(1)对数的运算性质降低了运算的级别,简化了运算,在数学发展史上是伟大的成就对数适算性质的推导有很多方法请同学们根据所学知识推导如下的对数运算性质:如果0>a ,且1≠a ,0>M ,那么log =n a M n ()log ∈a M n R(2)因为()10342102410,10=∈,所以102的位数为4(一个自然数效位的个数,叫做位数).请你运用所学过的对数运算的知识,判断20202019的位数.(注lg 2019 3.305≈)(3)2017年5月23日至27日,围棋世界冠军柯杰与DeepMind 公司开发的程序“AlphaGo ”进行三局人机对弈,以复杂的围棋来测试人工智能围模复杂度的上限约为3613=M ,而根据有关面料,可观测宇审中普通物质的原子总数的为8010=N ,甲乙两个同学都估算了M N的近似值,甲认为是7310,乙认为是9310,现有一种定义:若实数x ,y 满足-<-x m y m 则称x 比y 接近m ,请你判断哪个同学的近似值更接近M N,并说明理由.上海第一学期高一数学期中考试试卷答案时间:90分钟 满分:100分一、填空题1.{}1 2.0 3.:34x 4.125.4 6.1- 7.3>a 8.18-或19.12≥m 10.9 11.2或32 12.[)(]5,34,5-⋃ 二、选择题13.A 14.D 15.C 16.B三.解答题17.略18.(1)22-m ;(2)19.{}11,,032⎛⎫⎛⎫-∞-⋃+∞⋃ ⎪ ⎪⎝⎭⎝⎭20.(1)[]16,0-;(2)2<-k .21.(1)如果0>a ,且1≠a ,0>M ,因为()log log ==a a n n M M n a a M ,所以log log =na a M n M a a ,所以()log log =∈n a a M n M n R ; (2)设20202019=t ,所以lg 2020lg 2019=t ,因为lg 2019 3.305≈,所以lg 2020lg 20196676.1==t ,所以()6676.166********10,10=∈t所以20202019的位数为6677; (2)根据题意得,36180310=M N ,所以36136180803lg lg lg3lg10361lg38092.2410==-=-≈M N 所以()92.2492931010,10=∈M N因为()361173lg 23lg 236llg3172.54173lg10⨯=+≈<=,所以36117317315323101010⨯<<+ 所以36193738023101010⨯<+,所以361361739380803310101010-<-,所以甲同学的近似值更接近M N .。
2023-2024学年上海市上南中学高一上学期期中考试地理试卷
2023-2024学年上海市上南中学高一上学期期中考试地理试卷1. 读图,回答下列问题。
(1)读图1,地球是太阳系八大行星之一,与其他行星一起,围绕着太阳公转,各行星公转方向都是____,轨道形状为____。
(2)地球是一颗普通的行星,是太阳系唯一存在生命的行星,其原因是()A.地球与太阳的距离适中B.地球有一颗卫星C.地球所处宇宙环境不稳定D.地球是太阳系行星之一(3)黑子发生在太阳大气的____层,它“黑”的原因是____。
(4)根据所学知识,你认为不需要加强对太阳活动的研究和预报的部门是()A.通信部门B.航天部门C.冶金工业部门D.气候研究部门(5)太阳与人类生产生活密不可分,下列与太阳辐射和太阳活动无关的是()A.极光现象B.磁暴现象C.地热资源D.水能资源(6)太阳风到达地球主要影响地球大气中的____,可能影响____(7)人类带着地球在寻找人类新家园过程中依次经过的天体运行轨道有()A.水星、金星、火星、木星B.金星、木星、火星、天王星C.火星、木星、土星、天王星D.木星、土星、海王星、天王星(8)火星冲日是指行星在绕日运行时地球恰好处在太阳和火星之间,这时火星上的观测者可看到日面上有一个小黑点缓慢移动。
下图中能正确表示火星冲日的是____,这体现了行星公转的____性(9)读图2,图中60°N~70°N区域内降水量和黑子相对数之间的有什么关系?70°N~80°N区域的有什么关系?(10)高纬地区的一些乔木年轮的疏密变化与太阳活动的周期性相同,这是为什么呢?2. 阅读图文材料,回答下列问题。
材料一:四川省自贡市是世界闻名的侏罗纪“恐龙之乡”,素以恐龙化石埋藏点多面广、数量巨大、种类众多、保存完好、层序连续等特点著称于世。
这一地区侏罗纪(2.01亿~1.45亿年前)的陆相地层相当发育,恐龙化石就埋藏在侏罗纪早中晚期陆地层中。
(1)图1中的蓝细菌又称为蓝藻,它在地球演化的历史中最大的作用是____。
上海市高一第一学期期中考试物理试卷含答案(共5套)
上海市高一第一学期物理期中考试试卷满分:100 分 考试时间:60 分钟(注意:本卷 g 取 10 m/s 2)一.选择题(每题只有一个选项正确,1-25,每题2分,26-35每题3分,共80分)1. 下列物理量中属于矢量的是( )A.质量B.速度C.时间D.路程2.物理学中引入“质点”的概念,从科学方法来说,属于( )A.控制变量法B.观察、实验法C.建立模型法D.等效替代法3.下列关于位移和路程的说法,正确的是( ) A.位移就是路程。
B.位移大小永远不等于路程。
C.位移是标量,而路程是矢量,有大小有方向。
D.若物体做单向、直线运动时,位移大小和路程相等。
4.下列各s-t 或v-t 图中,表示质点做匀速直线运动的是( )5.下列各位移-时间图像中,对实际运动的物体,不可能的是( )6.2006年7月12日,中国选手刘翔在2006年瑞士洛桑田径超级大奖赛男子110米栏的比赛中,以12.88秒的优异成绩获得冠军,打破了沉睡了13年之久、由英国名将科林—杰克逊创造的12.91的世界记录。
如果测定刘翔起跑时的速度为8.5m/s ,到达终点时速度为10.2m/s ,那么刘翔在全程的平均速度为( )A .9.27m/s B.9.35 m/s C.8.54m/s D.10.2m/s7.有关瞬时速度、平均速度、平均速率说法正确的是( ) A.瞬时速度是物体在某一时刻或某一位置时的速度。
B.匀速直线运动的物体的平均速度与任何时刻的瞬时速度只是大小相等。
C.做变速运动的物体,平均速率就是平均速度的大小。
D.变速运动的物体,平均速度就是物体通过的路程与所用时间的比值。
8.骑自行车的人沿着斜坡下行做变速运动,第1S 内通过1m ,第2s 内通过2m ,第3s 内通过3m ,第4S 内通过4m 。
则些列说法正确的是:( )A.第2S 内的平均速度是2m/s 。
B.第2S 末的瞬时速度为2 m/s 。
C.前2秒内的平均速度为2m/s 。
2024届上海市桃浦中学 化学高一上期中达标检测试题含解析
2024届上海市桃浦中学化学高一上期中达标检测试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。
用2B铅笔将试卷类型(B)填涂在答题卡相应位置上。
将条形码粘贴在答题卡右上角"条形码粘贴处"。
2.作答选择题时,选出每小题答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案。
答案不能答在试题卷上。
3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新答案;不准使用铅笔和涂改液。
不按以上要求作答无效。
4.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、当光束通过下列分散系时,能观察到丁达尔效应的是( )A.NaCl溶液B.75%酒精C.盐酸D.稀豆浆2、a g NH3含b个氢原子,则阿伏加德罗常数可表示为A.174baB.173baC.17baD.17ab3、铝具有较强的抗腐蚀性能,主要是因为( )A.与氧气在常温下不反应B.铝性质不活泼C.铝表面能形成了一层致密的氧化膜D.铝耐酸耐碱4、在新制氯水中存在多种分子和离子,下列实验现象和结论一致且正确的是A.溶液呈黄绿色,且有刺激性气味,说明有Cl2存在B.加入有色布条,有色布条褪色,说明有Cl2存在C.加入盐酸酸化的AgNO3溶液,产生白色沉淀,说明有Cl–存在D.加入NaOH溶液,氯水黄绿色消失,说明有HClO存在5、设N A表示阿伏加德罗常数的值,下列说法不正确的是()A.1mol氧气中有2N A个氧原子B.使用摩尔时必须指明微粒的名称C.1mol CO2所含的原子总数为3N A个D.1mol任何物质所含各种微粒的数目均为N A个6、对于某些离子的检验及结论正确的是()A.加盐酸有无色气体产生,该气体能使澄清石灰水变混浊,原溶液中一定有CO2-3B.加氯化钡溶液有白色沉淀产生,再加盐酸,淀淀不消失,原溶液中一定有SO2-4C.某溶液为蓝色,该溶液中可能含有Cu2+D.某溶液中加入AgNO3溶液有白色沉淀生成,则该溶液中一定有Cl-7、关于胶体的性质与应用,相关说法错误的是A.静电除尘器除去空气或工厂废气中的飘尘是利用了胶粒的带电性B.由于胶粒之间有排斥作用,胶粒不易聚集成大的颗粒,这是胶体具有介稳性的主要原因C.纳米材料微粒直径一般从几纳米到几十纳米,因此纳米材料属于胶体D.Al(OH)3胶体吸附水中的悬浮物属于物理过程8、用N A表示阿伏加德罗常数的值,下列说法正确的是( )A.48克O2和O3的混合物含有氧原子数3N AB.22.4L甲烷(CH4)所含的原子数为5N AC.物质的量浓度为0.5 mol/L的MgCl2溶液中,含有Cl-个数为N AD.标准状况下,11.2 L水中含有分子的数目为0.5N A9、在相同温度和压强下,容器A中的臭氧(O3)和容器B中的乙炔气(C2H2)所含的分子个数相同,则A、B两容器中气体的体积之比是()A.4:3 B.3:4 C.1:1 D.2:310、已知A2O n2-可将B2-氧化为B单质,A2O n2-则被还原为A3+,又知100 mL的0.3 mol·L-1的A2O n2-与150 mL的0.6 mol·L -1B2-恰好完全反应,则AO n2-中的n值为2A.4B.5C.6D.711、下列仪器可用于加热且不必垫石棉网的是①试管②烧杯③坩埚④蒸发皿⑤锥形瓶⑥蒸馏烧瓶A.②④⑤B.①③④C.①②③D.②⑤⑥12、由CO2和H2组成的混合气体在同温同压下与氮气的密度相同,则该混合气体中CO2和H2的体积比为()A.29:8 B.22:1 C.13:8 D.26:1513、下列离子方程式中,正确的是A.石灰石与盐酸反应:CO32-+2H+=CO2↑+H2OB.铜和硝酸银溶液反应:Cu+Ag+=Cu2++AgC.向NaHSO4溶液中滴加Ba(OH)2溶液至离子恰好沉淀完全:Ba2++2OH-+2H++SO42-=BaSO4↓+2H2OD.NH4HCO3溶液与过量HCl溶液混合:HCO3-+H+=CO2↑+H2O14、淀粉溶液是一种胶体,并且淀粉遇到碘单质,可以出现明显的蓝色特征。
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摸底考试卷Grammar and Vocabulary: (18%)Section A (8%)Directions: Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence.21. The discovery of gold in Australia led thousands to believe that a fortune_________.A, had been making B. was making C. was to be made D. would make22. The president hopes that people will be better off when he quits than when he _________.A. has startedB. startsC. will startD. started23. Travellers to that area can carry disease to their own countries that have never experienced _________.A. themB. itC. themselvesD. itself24. No one can tell the exact number of U.S. pilots and fighter planes ________were lost in the Pearl Harbor air attack.A. whoB. whichC. thatD. what25. ____________, the climbers, who had already conquered many high mountains before, determined to reach the top of the mountain.A. However it was highB. How high it wasC. However high it wasD. However high was it26. They will not allow others to decide the future of their country, _________.A. which is to be knownB. as is to be knownC. as is known to allD. as what is known to all27. We have come to realize that the brain must “ forget” some pieces of information ________it can remember others.A. whenB. sinceC. so thatD. if28. They are our school’s volunteers _______to h elp elderly people cross the streets every day.A. whose task it isB. it is whose taskC. to whom is the taskD. whose task wasSection B (10%)Directions:Complete the following passage by using the words in the box. Each word can beSept 27 is World Tourism Day. Of course, travel isn’t a new discovery. Imagine how Italian traveler Marco Polo must have felt when he found himself on Chinese ____29_____, seeing a way of life quite different from anything he’d seen before.And how ___30______ must it have been to listen to Zhang Qian when he returned to China from his journey through Central Asia and West Asia? His brain must have been packed with everything he’d seen and heard, leading to the ____31_____ of the Silk Road.Travel is one of the most exciting experiences a human being can have. Nowadays, more people are traveling than ever before. By train, plane and car, people all around the globe are____32_____ to places that people didn’t even know ____33_____ a few centuries ago, or only knew from books.Some people have traveled all over the world, and travel is a way of life to them. They perhaps know what to expect before they travel. That’s why the best travel is when it’s for the first time. Imagine a person who has always wanted to travel to the United States. Of course, they’ve probably seen the Statue of Liberty a thousand times on the TV, and the White House, and all the other famous _______34__. But none of that would compare to the ___35______ of looking out of the cabin window as the plane lands, watching the cities and streets of the real America come into_____36____.Although travel is often just for fun, it’s also ____37_____. We may not know that we are getting an education, but we still are.We’re learning every day: new words in a new language, new people, and new ways of life. But this learning takes place in the school of the world, not the classroom. One of the lessons we learn is ____38_____ a moral one. As we get to know foreign places, we come to understand that there are many different ways to live, and t hat the way we live isn’t necessarily the best way. The British politician Benjamin Disraeli summed this up well when he said, “Travel teaches toleration.”Ⅲ.Reading Comprehension (40%)Section ADirections : For each blank in the following passages there are four words or phrases marked A,B,C and D. Fill in each blank with the word or phrases that best fits the context.( A )Leif Erickson reached North America around the year 1000, but the attempt to explore was started slowly. It would be five centuries __(39)__ other Europeans landed on that continent.Why were Europeans the ones to __(40)__ to the American? The Chinese and Arabs had the _(41)__ and technology to sail across the seas. __(42)__ of them tool regular voyages in the Indian Ocean and the Asian Pacific for trade. But exploration? By the mid-15th century China had followed the closed-door policy to __(43)__ itself from the rest of the world. The Arabs, with access to the minerals and spices (香料) of Africa and the Far East, saw no __(44)__ to journey into the unknown.Europe, ____(45)________ needed gold and silver; its mines could not meet the demand for coinage. Ottoman Turks blocked the routes across the land to Asia. Only the sea held the ___(46)_____of new wealth.With the return of Magell an’s ships in 1522 from its voyage around the world, the belief was __(47)__ that the oceans were interconnected, promising the age of discovery. The English, as well as the Spanish, Portuguese and French, __(48)__ themselves to finding the “river of the west” through North America to the east.39. A. after B. since C .before D .when40. A .push B .pull C .draw D .drive41. A .sources B .resources C .substances D .matters42. A .Neither B .Both C .Any D .None43. A .prevent B .protect C .isolate D .differ44. A .access B .admission C .application D .association45. A .as a matter of fact B . in other wordsC. for one thing D .on the other hand46. A .symbol B .impression C .promise D .reflection47. A .extended B .estimated C .attracted D .accepted48. A .contributed B .devoted C .referred D .connected( B )Those who keep their word become the most important members of an organization. People come to rely on and trust them. They can be ____(49)____.___(50)______you make a promise , be sure to keep it. When you keep your promise, no matter how much ___(51)_______it takes, you will be rewarded.Whenever you say no, stand upon that as well. In a way, a no is also a promise. A good, _____(52)____no can be very important in building trust.Agreements are also important. Whenever you enter an agreement, live by it, ______(53)____you are not too happy with the deal after making the deal, you still live by it. In the long run, your integrity will _____(54)____.Victoria was the manager of a supermarket. She set out to do that ____(55)_____. She was very careful, however, of not _____(56)_____. When she did, she moved mountains to make sure that she came through. After a while, the stone employee came to trust and respect her like no______(57)_____they had ever had. The teamwork became magical. People followed her example by living up to their word. She ____(58)______what she said, and people appreciated that.49. A. counted B. counted on C. depended D. numbered50.A. As far as B. Though C. Whenever D. However51.A. pain B. ache C. effort D. money52. A. loud B. clean C. sharp D. loose53. A. As B. As if C. Just as D. Even if54. A. set off B. show off C. pay off D. take off55. A. thoroughly B. entirely C. wholly D. totally56. A. lying B. overpromising C. underestimating D. overlooking57. A. manager B. employee C. supermarket D. others58. A. believed B. trusted C. meant D. promisedSection BDirections : Read the following passages. Each passage is followed by 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 )A few years ago, Paul Gerner began to gather a group of architects in Las Vegas to ask them what it would take to design a public school that used 50 percent less energy, cost much less to build and obviously improved student learning. “I think half of them fell off their chairs,” Gerner says.Gerner manages school facilities for Clark County, Nevada, a district roughly the size of Massachusetts. By 2018, 143,000 additional students will enter the already crowded public-education system. Gerner needs 73 new schools to house them. Four architecture teams have nearly finished designing primary school prototypes (原型); they plan to construct their schools starting in 2009. The district will then assess how well the schools perform, and three winners will copy those designs in 50 to 70 new buildings.Green schools are appearing all over, but in Clark County, which stands out for its vastness(广阔), such aggressive targets are difficult because design requirements like more natural light for students go against the realities of a desert climate. “One of the b iggest challenges is getting the right site orientation,” Mark McGinty, a director at SH Architecture, says. His firm recently completed a high school in Las Vegas. ”You have the same building, same set of windows, but if its orientation is incorrect and it faces the sun, it will be really expensive to cool.”Surprisingly, the man responsible for one of the most progressive green-design competitions has doubts about ideas of eco-friendly buildings. “I don’t believe in the new green religion,” Gerner says. “Some of the building technologies that you get are impractical. I’m interested in those that work.” But he wouldn’t mind if some green features inspire students. He says he hopes to set up green energy systems that allow them to learn about the process of harvesting wind and solar power. “You never know what’s going to start the interest of a child to study math and science,” he says.59. How did the architects react to Gerner’s design requirements?A .They lost balance in excitement.B .They showed strong disbelief.C .They expressed little interest.D .They burst into cheers.60. Which order of steps is followed in carrying out the project?A .Assessment —Prototype —Design —Construction.B .Assessment —Design —Prototype —Construction.C .Design —Assessment —Prototype —Construction.D .Design —Prototype —Assessment —Construction.61 What makes it difficult to build green schools in Clark County?A .The large size.B .Limited facilities.C .The desert climate.D .Poor natural resources.62. What does Gerner think of the ideas of green schools?A .They are questionable.B .They are out of date.C .They are advanced.D .They are practical.(B)Spring is in the air, as is romance. Perhaps you're even thinking of taking the plunge andmaking a honey trip with your significant other?Before you do, why not take a look at a list of the top three places in the world to propose (求婚)? With suggestions for traditionalists and private types, you just might find the perfect spot to pop the question.New YorkIf you pay attention to romantic comedies, New York is the place for romance. Ever since the Dutch first entered this harbor in 1624 it has become a historic landmark and a must visit dreamland. Every stretch of this island is packed full of fun that will keep everyone busy. Take a leaf out of sleepless in Seattle and head to the top of the Empire State Building at night, or how about run to your loved one on the streets of NYC this New Years even like in when harry Met Sally?ParisSweeping views? Check. Grand old stately home? Check. Luxurious spots to propose? check. pack your passports and say goodbye to your daily routine life-it's less than three hours to Paris from London by Eurostar. Famous for its breathtaking architecture, and many cultural attractions, France's capital is a must-see destination. While we're not suggesting you climb the Eiffel Tower for the big moment. There's a reason why this is the city of love, if you keep your proposal original. So gentleman, take your lady to the Louvre, turn your back on the Mona Lisa and declare she is more beautiful than the famous work of art.Las VegasDo you want to bundle the proposal and wedding all-in-one? plead to. Las Vegas, get down on one knee, show your love and get married in less time than it takes t o order 'honeymoon suit’ and if it doesn't work out. There's still plenty of entertain. Once the playground of the rich and famous, from Elvis Presley to Marilyn Monroe, Las Vegas now attracts millions of visitors by its bright lights and thrills each year. Whether you're to try your luck at the casinos (赌场), or watch a show, there's a wonder to explore in Las Vegas.63. Which of the following city on the top-3 list would be the ideal place for film fans to propose?A. New YorkB. Paris.C. Las Vegas.D. None.64. Which place is recommended for a proposal in the passage?A. On the top of the Eiffel TowerB. In the Eurostar train from LondonC. Any luxurious spot in PairsD. In front of the Mona Lisa in the Louvre64. As a perfect place for propose, Las Vegas will provide you with all the following EXCEPT.A. a honeymoon suiteB. a package weddingC. a bundle of flowersD. various ways to entertain( C )Do you look happy? angry? Have you ever wondered how you know what another person’s mood is just by looking at his or her face? Studies have shown that one instantaneously (瞬间地) and subconsciously makes a determination of another person’s mood just by glancing at the position and appearance of both the eyebrows and mouth. But what if only the position of theeyebrows was varied , and not the mouth? Would you still be able to determine his or her mood or personality just by seeing the eyebrows?Observe the four faces shown below. Notice how each face has exactly the same shape. the same smile, and the same eyes. The only difference between each of the faces is the position of the eyebrows.Low, flat eyebrows that hang over the eyes indicate tiredness, while an eyebrow that is highest in the middle denotes sadness. Downward slanting eyebrows show anger, while highly arched eyebrows show happiness.Frequently, malposition of the eyebrows, such as eyebrow sagging(下垂) and upper eyelid fullness, can be overlooked when considering facial aging and expression. Furthermore, the heavy eyebrow skin pushed the eyelid down causing a tired appearance.To avoid eyebrow sagging, many people raise their eyebrows to remove the brow and eyelid skin from their visual space. These people eventually develop wrinkles in the forehead due to the constant movement of the muscles that raise the eyebrow. In addition, there are those who are sensitive to ligh t and frequently’ squint(斜视) and squeeze’ their eyes. This effectively pulls the eyebrows down and leads to wrinkles between the eyebrows and at the corners of the eyes.Botox is an effective measure for fine lines of the forehead and lines between the eyebrows. Botox works by freezing the muscle movement for several months. For the purpose of creating a more pleasant appearance, the best corrective measure is brow-lift surgery.66. What can this passage be?A. An advertisementB. A magazine articleC. A business reportD. A scientific report67. A person’s eyebrows that hang over the eyes low and flat can cause a(n) _________appearance.A. sadB. tiredC. happyD. angry68. What is the purpose of the passage?A. To explain the fa ct that varied eye position can tell a person’s mood.B. To arouse people’s interest in the best way of removing wrinkles in the forehead and between the eyebrows.C. To explain what leads to wrinkles in the forehead and near the eyebrow.D. To enable people to know how to avoid developing fine lines on their faces.69. If the passage continues, what would the writer most likely discuss in the next paragraph?A. Facial agingB. Eye operationC. Brow life surgeryD. Face-lifts.( D )The past ages of man have all been carefully labeled by anthropologists. Descriptions like ‘Palaeolithic Man’, ‘Neolithic Man’, etc., neatly sum up whole periods. When the time comes foranthropologists to turn their attention to the twentieth century, they will surely choose the label ‘Legless Man’. Histories of the time will go something like this: ‘in the twentieth century, people forgot how to use their legs. Men and women moved about in cars, buses and trains from a very early age. There were lifts and escalators in all large buildings to prevent people from walking. This situation was forced upon earth dwellers of that time because of miles each day. But the surprising thing is that they didn’t use their legs even when they went on holiday. They built cable railways, ski-lifts and roads to the top of every huge mountain. All the beauty spots on earth were ruined by the presence of large car parks.’The future history books might also record that we were deprived of the use of our eyes. In our hurry to get from one place to another, we failed to see anything on the way. Air travel gives you a bird’s-eye view of the world—or even less if the wing of the aircraft happens to get in your way. When you travel by car or train a blurred (="not" clear) image of the countryside constantly smears the windows. Car drivers, in particular, are forever obsessed with the urge to go on and on: they never want to stop. Is it the lure of the great motorways, or what? And as for sea travel, it hardly deserves mention. It is perfectly summed up in the words of the old song:‘I joined the navy to see the world, and what did I see? I saw the sea.’ The typical twentieth-century traveler is the man who always says ‘I’ve been there. ’You mention the remotest, most evocative (引起记忆的) place-n ames in the world like El Dorado, Kabul, Irkutsk and someone is bound to say ‘I’ve been there’—meaning, ‘I drove through it at 100 miles an hour on the way to somewhere else.’When you travel at high speeds, the present means nothing: you live mainly in the future because you spend most of your time looking forward to arriving at some other place. But actual arrival, when it is achieved, is meaningless. You want to move on again. By traveling like this, y ou suspend all experience; the present ceases to be a reality: you might just as well be dead. The traveler on foot, on the other hand, lives constantly in the present. For him traveling and arriving are one and the same thing: he arrives somewhere with every step he makes. He experiences the present moment with his eyes, his ears and the whole of his body. At the end of his journey he feels a delicious physical weariness. He knows that sound. Satisfying sleep will be his: the just reward of all true travellers.70. Anthropologists label nowadays’ men ‘Legless’ because _________.A. people forget how to use his legs.B. people prefer cars, buses and trains.C. lifts and escalators prevent people from walking.D. there are a lot of transportation devices.71.Why does the author say ‘we are deprived of the use of our eyes’?A. People won’t use their eyes.B. In traveling at high speeds, eyes become useless.C. People can’t see anything on his way of travel.D. People want to sleep during travelling.72. Travelling at high speed means _________.A. people’s focus on the futureB. a pleasureC. satisfying drivers’ great thrillD. a necessity of life73.What's the best title of the passage?A. More haste, less speedB. Modern means of transportation make the world a small placeC. Eyes open and mind broadenD. The only way to travel is on foot.Ⅰ. Grammar (8%)\One of the main points of traveling is to relax and take a break from your normal daily life.(1)__________the truth is, we’re not always free to do what we like when travelling to a fore ign country, and a US tourist learned that the hard way.On Aug 12, the unnamed 41-year-old man was beaten by a passerby after he was seen giving Nazi salutes(纳粹礼) again and again on a street in Dresden, Germany.Ever since the end of World WarⅡ, Germany has strict laws (2)_________(forbid) the Nazi salute, as well as other symbols of Nazism.In fact, most countries have their own taboos. If you plan to travel overseas, it’s best to get familiar with these taboos(3)______________you start touring local sites. Below, TEENS gives some examples.SingaporeYou can get (4) ________(fine) fore a lot things in Singapore, including feeding birds, spitting , urinating (小便)in public, smoking in public , not flushing a public toilet after you use it, and eating or drinking on buses or trains.JapanYou’re not supposed to wear your shoes in someone’s house, but you’re not supposed to take your shoes off (5)________the house either. Instead, there’s a small areas inside the door called a “ genkan” which is (6)__________your shoes should go. If you’re still not sure where that is , pay attention to what other people do and do the same.FranceFrench people don’t like (7)________when you talk about money. It’s OK if you say that you want to quit a job because you (8)___________(pay) little money, but you should never say the exact amount. Money is a “ dirty” topic in France.Ⅱ. Recitation (4%)In western cultures, (1)_______eye contact in conversation is necessary. As a matter of fact, a westerner might consider a lack of eye contact as a lack of interest. In Spain, Italy and Greece, where people stand close together talking to each other, eye contact is more frequent and lasts longer.In many Asian cultures, people avoid eye contact to show respect. It is done when talking with anyone in (2)__________or with anyone older.Habits like this can cause problems when people do not understand them. For example, an Asian person might close his or her eyes in (3) ___________ or look down while listening to a speaker. A Western speaker might thing the person is not interested.Eye contact is a (4) ___________ thing. A lack of eye contact may be considered impolite. But if you stare at others, it is also considered rude and should be avoided.Ⅲ. Translation (20%)1. 在炎热的夏日,将食物放在冰箱被认为是保藏食物最行之有效的方法。