2014学年度广东省广州市高中二年级学生学业水平测试及答案

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2014广州二模数学理试题(含答案)

2014广州二模数学理试题(含答案)

图1俯视图侧视图正视图2014年广州市普通高中毕业班综合测试(二)数学(理科)一、选择题:本大题共8小题,每小题5分,满分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. 2.若函数()y f x =是函数3x y =的反函数,则12f ⎛⎫⎪⎝⎭的值为 A .2log 3- B .3log 2- C .19D3.命题“对任意x ∈R ,都有32x x >”的否定是A .存在0x ∈R ,使得3200x x >B .不存在0x ∈R ,使得3200x x > C .存在0x ∈R ,使得3200x x ≤ D .对任意x ∈R ,都有32x x ≤ 4. 将函数()2cos 2(f x x x x =+∈R )的图象向左平移6π个单位长度后得到函数 ()y g x =,则函数()y g x =A .是奇函数B .是偶函数C .既是奇函数又是偶函数D .既不是奇函数,也不是偶函数5.有两张卡片,一张的正反面分别写着数字0与1,另一张的正反面分别写着数字2与3, 将两张卡片排在一起组成两位数,则所组成的两位数为奇数的概率是 A .16 B .13 C .12 D .386.设12,F F 分别是椭圆()2222:10x y C a b a b+=>>的左、右焦点,点P 在椭圆C 上,线段1PF的中点在y 轴上,若1230PF F ︒∠=,则椭圆C 的离心率为 A .16 B .13CD7.一个几何体的三视图如图1,则该几何体的体积为A .6π4+B .12π4+C .6π12+D .12π12+D CB A 8.将正偶数2,4,6,8,按表1的方式进行排列,记ij a 表示第i 行第j 列的数,若2014ij a =,则i j +的值为A .257B .256C .254D .253表1 二、填空题:本大题共7小题,考生作答6小题,每小题5分,满分30分. 9.不等式2210x x --<的解集为 .10.已知312nx x ⎛⎫- ⎪⎝⎭的展开式的常数项是第7项,则正整数n 的值为 .11.已知四边形ABCD 是边长为a 的正方形,若2,2DE EC CF FB ==,则A E A F ⋅的值 为 .12.设,x y 满足约束条件 220,840,0,0.x y x y x y -+≥⎧⎪--≤⎨⎪≥≥⎩若目标函数()0,0z ax by a b =+>>的最大值为8,则ab 的最大值为 .13.已知[]x 表示不超过x 的最大整数,例如[][]1.52,1.51-=-=.设函数()[]f x x x ⎡⎤=⎣⎦, 当[)0,(x n n ∈∈N *)时,函数()f x 的值域为集合A ,则A 中的元素个数为 .15.(几何证明选讲选做题)在平行四边形ABCD 中,点E 在线段AB 上,且 12A E EB =,连接,DE AC ,AC 与DE 相交于点F ,若△AEF 的面积为1 cm 2,则 △AFD 的面积为 cm 2.三、解答题:本大题共6小题,满分80分.解答须写出文字说明、证明过程和演算步骤. 16.(本小题满分12分)如图2,在△ABC 中,D 是边AC 的中点, 且1AB AD ==,BD =(1) 求cos A 的值; (2)求sin C 的值.图2FED CBAa 图3重量/克0.0320.02452515O 一个盒子中装有大量形状大小一样但重量不尽相同的小球,从中随机抽取50个作为样 本,称出它们的重量(单位:克),重量分组区间为(]5,15,(]15,25,(]25,35,(]35,45, 由此得到样本的重量频率分布直方图,如图3. (1)求a 的值;(2)根据样本数据,试估计盒子中小球重量的平均值;(注:设样本数据第i 组的频率为i p ,第i 组区间的中点值为i x ()1,2,3,,i n =,则样本数据的平均值为112233n n X x p x p x p x p =++++. (3)从盒子中随机抽取3个小球,其中重量在(]5,15内的小球个数为ξ,求ξ的分布列和数学期望.18.(本小题满分14分) 如图4,在五面体ABCDEF 中,四边形ABCD 是边长为2的正方形,EF ∥平面ABCD , 1EF =,,90FB FC BFC ︒=∠=,AE =(1)求证:AB ⊥平面BCF ; (2)求直线AE 与平面BDE 所成角的正切值.图4已知数列{}n a 的前n 项和为n S ,且10a =,对任意n ∈N *,都有()11n n na S n n +=++.(1)求数列{}n a 的通项公式;(2)若数列{}n b 满足22log log n n a n b +=,求数列{}n b 的前n 项和n T .20.(本小题满分14分)已知定点()0,1F 和直线:1l y =-,过点F 且与直线l 相切的动圆圆心为点M ,记点M 的轨迹为曲线E .(1) 求曲线E 的方程;(2) 若点A 的坐标为()2,1, 直线1:1(l y kx k =+∈R ,且0)k ≠与曲线E 相交于,B C 两 点,直线,AB AC 分别交直线l 于点,S T . 试判断以线段ST 为直径的圆是否恒过两个 定点? 若是,求这两个定点的坐标;若不是,说明理由. 21.(本小题满分14分)已知函数()ln (,f x a x bx a b =+∈R )在点()()1,1f 处的切线方程为220x y --=. (1)求,a b 的值; (2)当1x >时,()0kf x x+<恒成立,求实数k 的取值范围; (3)证明:当n ∈N *,且2n ≥时,22111322ln 23ln 3ln 22n n n n n n--+++>+.2014年广州市普通高中毕业班综合测试(二)数学(理科)试题参考答案及评分标准分.二、填空题:本大题考查基本知识和基本运算,体现选择性.共7小题,每小题5分,满分30分.其中14~15题是选做题,考生只能选做一题.9.1,12⎛⎫- ⎪⎝⎭10.8 11.2a12.4 13.222n n -+141 15.3三、解答题:本大题共6小题,满分80分.解答须写出文字说明、证明过程和演算步骤.16.(本小题满分12分) (1)解:在△ABD 中,1AB AD ==,3BD =,∴222cos 2AB AD BD A AB AD+-=⋅⋅2221112113+-⎝⎭==⨯⨯. ……………4分 (2)解:由(1)知,1cos 3A =,且0A <<π,∴sin A ==.……………6分 ∵D 是边AC 的中点,∴22AC AD ==.在△ABC 中,222222121cos 22123AB AC BC BC A AB AC +-+-===⋅⋅⨯⨯,………8分 解得BC=……………10分 由正弦定理得,sin sin BC ABA C=, ……………11分 ∴1sin sin 33AB AC BC⋅===. ……………12分17.(本小题满分12分)(1) 解:由题意,得()0.020.0320.018101x +++⨯=, ……………1分 解得0.03x =. ……………2分 (2)解:50个样本小球重量的平均值为0.2100.32200.3300.184024.6X =⨯+⨯+⨯+⨯=(克). ……………3分由样本估计总体,可估计盒子中小球重量的平均值约为24.6克. ……………4分(3)解:利用样本估计总体,该盒子中小球重量在(]5,15内的概率为0.2,则13,5B ξ⎛⎫⎪⎝⎭. ……………5分 ξ的取值为0,1,2,3, ……………6分()30346405125P C ξ⎛⎫=== ⎪⎝⎭,()2131448155125P C ξ⎛⎫⎛⎫==⨯= ⎪ ⎪⎝⎭⎝⎭, ()2231412255125P C ξ⎛⎫⎛⎫==⨯= ⎪ ⎪⎝⎭⎝⎭,()3331135125P C ξ⎛⎫=== ⎪⎝⎭. ……………10分 ∴ξ的分布列为:……………11分∴6448121301231251251251255E ξ=⨯+⨯+⨯+⨯=. ……………12分 (或者13355E ξ=⨯=)18.(本小题满分14分)(1)证明:取AB 的中点M ,连接EM ,则1AM MB ==, ∵EF ∥平面ABCD ,EF ⊂平面ABFE ,平面ABCD 平面ABFE AB =, ∴EF ∥AB ,即EF ∥MB . ……………1分 ∵EF =MB 1= ∴四边形EMBF 是平行四边形. ……………2分 ∴EM ∥FB ,EM FB =.在Rt △BFC 中,2224FB FC BC +==,又FB FC =,得FB =∴EM = ……………3分 在△AME 中,AE =1AM =,EM =M OH FEDCB∴2223AM EM AE +==,∴AM EM ⊥. ……………4分 ∴AM FB ⊥,即AB FB ⊥. ∵四边形ABCD 是正方形,∴AB BC ⊥. ……………5分 ∵FB BC B =,FB ⊂平面BCF ,BC ⊂平面BCF ,∴AB ⊥平面BCF . ……………6分 (2)证法1:连接AC ,AC 与BD 相交于点O ,则点O 是AC 的中点, 取BC 的中点H ,连接,OH EO ,FH , 则OH ∥AB ,112OH AB ==. 由(1)知EF ∥AB ,且12EF AB =,∴EF ∥OH ,且EF OH =.∴四边形EOHF 是平行四边形.∴EO ∥FH ,且1EO FH == .……………7分 由(1)知AB ⊥平面BCF ,又FH ⊂平面BCF ,∴FH AB ⊥. ……………8分∵FH BC ⊥,,ABBC B AB =⊂平面ABCD ,BC ⊂平面ABCD ,∴FH ⊥平面ABCD . ……………9分 ∴EO ⊥平面ABCD . ∵AO ⊂平面ABCD ,∴EO ⊥AO . ……………10分 ∵AO BD ⊥,,EOBD O EO =⊂平面EBD ,BD ⊂平面EBD ,∴AO ⊥平面EBD . ……………11分 ∴AEO ∠是直线AE 与平面BDE 所成的角. ……………12分 在Rt △AOE中,tan AOAEO EO∠== ……………13分 ∴直线AE 与平面BDE……………14分 证法2:连接AC ,AC 与BD 相交于点O ,则点O 取BC 的中点H ,连接,OH EO ,FH , 则OH ∥AB ,112OH AB ==.由(1)知EF ∥AB ,且12EF AB =, ∴EF ∥OH ,且EF OH =. ∴四边形EOHF 是平行四边形.∴EO ∥FH ,且1EO FH ==. ……………7分由(1)知AB ⊥平面BCF ,又FH ⊂平面BCF , ∴FH AB ⊥. ∵FH BC ⊥,,ABBC B AB =⊂平面ABCD ,BC ⊂平面ABCD ,∴FH ⊥平面ABCD .∴EO ⊥平面ABCD . ……………8分 以H 为坐标原点,BC 所在直线为x 轴,OH 所在直线为y 轴,HF 所在直线为z 轴, 建立空间直角坐标系H xyz -,则()1,2,0A -,()1,0,0B ,()1,2,0D --,()0,1,1E -.∴()1,1,1AE =-,()2,2,0BD =--,()1,1,1BE =--. ……………9分 设平面BDE 的法向量为=n (),,x y z ,由n 0BD ⋅=,n 0BE ⋅=, 得220x y --=,0x y z --+=,得0,z x y ==-.令1x =,则平面BDE 的一个法向量为=n ()1,1,0-. ……………10分 设直线AE 与平面BDE 所成角为θ,则sin θ=cos ,n AE⋅=n AE n AE=. ……………11分∴cos 3θ==,sin tan cos θθθ== ……………13分∴直线AE 与平面BDE ……………14分19.(本小题满分14分)(1)解法1:当2n ≥时,()11n n na S n n +=++,()()111n n n a S n n --=+-,……1分 两式相减得()()()11111n n n n na n a S S n n n n +---=-++--, ……………3分 即()112n n n na n a a n +--=+,得12n n a a +-=. ……………5分 当1n =时,21112a S ⨯=+⨯,即212a a -=. ……………6分 ∴数列{}n a 是以10a =为首项,公差为2的等差数列.∴()2122n a n n =-=-. ……………7分 解法2:由()11n n na S n n +=++,得()()11n n n n S S S n n +-=++, ……………1分整理得,()()111n n nS n S n n +=+++, ……………2分 两边同除以()1n n +得,111n nS S n n+-=+. ……………3分 ∴数列n S n ⎧⎫⎨⎬⎩⎭是以101S =为首项,公差为1的等差数列. ∴011nS n n n=+-=-. ∴()1n S n n =-. ……………4分 当2n ≥时,()()()111222n n n a S S n n n n n -=-=----=-. ……………5分 又10a =适合上式, ……………6分 ∴数列{}n a 的通项公式为22n a n =-. ……………7分 (2)解法1:∵22log log n n a n b +=,∴221224n an n n b n n n --=⋅=⋅=⋅. ……………9分∴1231n n n T b b b b b -=+++++()0122142434144n n n n --=+⨯+⨯++-⋅+⋅,①()1231442434144n n n T n n -=+⨯+⨯++-⋅+⋅,② ……………11分 ①-②得0121344444n nn T n --=++++-⋅14414n nn -=-⋅-()13413n n -⋅-=. ……………13分 ∴()131419nn T n ⎡⎤=-⋅+⎣⎦. ……………14分 解法2:∵22log log n n a n b +=,∴221224n an n n b n n n --=⋅=⋅=⋅. ……………9分∴1231n n n T b b b b b -=+++++()0122142434144n n n n --=+⨯+⨯++-⋅+⋅.由()12311n nx x x x x x x x+-++++=≠-, ……………11分两边对x 取导数得,012123n x x x nx-++++=()()12111n n nx n x x +-++-. ………12分令4x =,得()()0122114243414431419n n n n n n --⎡⎤+⨯+⨯++-⋅+⋅=-⋅+⎣⎦. ……………13分 ∴ ()131419nn T n ⎡⎤=-⋅+⎣⎦. ……………14分 20.(本小题满分14分)(1)解法1:由题意, 点M 到点F 的距离等于它到直线l 的距离,故点M 的轨迹是以点F 为焦点, l 为准线的抛物线. ……………1分 ∴曲线E 的方程为24x y =. ……………2分 解法2:设点M 的坐标为(),x y ,依题意, 得1MF y =+,1y =+, ……………1分化简得24x y =.∴曲线E 的方程为24x y =. ……………2分(2) 解法1: 设点,B C 的坐标分别为()()1122,,,x y x y ,依题意得,2211224,4x y x y ==.由21,4,y kx x y =+⎧⎨=⎩消去y 得2440x kx --=,解得1,2422k x k ±==±.∴12124,4x x k x x +==-. ……………3分直线AB 的斜率2111111124224ABx y x k x x --+===--, 故直线AB 的方程为()12124x y x +-=-. ……………4分 令1y =-,得1822x x =-+, ∴点S 的坐标为182,12x ⎛⎫-- ⎪+⎝⎭. ……………5分 同理可得点T 的坐标为282,12x ⎛⎫-- ⎪+⎝⎭. ……………6分∴()()()121212888222222x x ST x x x x -⎛⎫=---= ⎪++++⎝⎭ ()()()121212121288248x x x x x xx x x x k k---===+++. ……………7分∴2ST=()()()2221212122221614k x x x x x x k k k +-+-==. ……………8分设线段ST 的中点坐标为()0,1x -,则()()()12012124418822222222x x x x x x x ++⎛⎫=-+-=-⎪++++⎝⎭ ()()()1212444444222248k k x x x x k k++=-=-=-+++. ……………9分∴以线段ST 为直径的圆的方程为()2222114x y ST k ⎛⎫+++= ⎪⎝⎭()2241k k +=. ……………10分展开得()()22222414414k x x y k k k++++=-=. ……………11分 令0x =,得()214y +=,解得1y =或3y =-. ……………12分 ∴以线段ST 为直径的圆恒过两个定点()()0,1,0,3-. ……………14分 解法2:由(1)得抛物线E 的方程为24x y =.设直线AB 的方程为()112y k x -=-,点B 的坐标为()11,x y ,由()112,1,y k x y ⎧-=-⎨=-⎩解得122,1.x k y ⎧=-⎪⎨⎪=-⎩∴点S 的坐标为122,1k ⎛⎫-- ⎪⎝⎭. …………3分 由()1212,4,y k x x y ⎧-=-⎨=⎩消去y ,得2114840x k x k -+-=, 即()()12420x x k --+=,解得2x =或142x k =-. ……………4分 ∴1142x k =-,22111114414y x k k ==-+. ∴点B 的坐标为()211142,441k k k --+. ……………5分同理,设直线AC 的方程为()212y k x -=-, 则点T 的坐标为222,1k ⎛⎫-- ⎪⎝⎭,点C 的坐标为()222242,441k k k --+. …………6分 ∵点,B C 在直线1:1l y kx =+上,∴()()()()()()22222211212121214414414242k k k k k k k k k k k k k -+--+---==----121k k =+-.∴121k k k +=+. ……………7分又()211144142k k k k -+=-1+,得()21111214442412k k kk k k k k k -=-=+--,化简得122kk k =. ……………8分 设点(),P x y 是以线段ST 为直径的圆上任意一点,则0SP TP ⋅=, ……………9分得()()122222110x x y y k k ⎛⎫⎛⎫-+-++++= ⎪⎪⎝⎭⎝⎭, ……………10分整理得,()224410x x y k+-++=. ……………11分 令0x =,得()214y +=,解得1y =或3y =-. ……………12分 ∴以线段ST 为直径的圆恒过两个定点()()0,1,0,3-. ……………14分 21.(本小题满分14分)(1)解:∵()ln f x a x bx =+, ∴()af x b x'=+. ∵直线220x y --=的斜率为12,且过点11,2⎛⎫- ⎪⎝⎭, ……………1分 ∴()()11,211,2f f ⎧=-⎪⎪⎨⎪'=⎪⎩即1,21,2b a b ⎧=-⎪⎪⎨⎪+=⎪⎩解得11,2a b ==-. ……………3分(2)解法1:由(1)得()ln 2xf x x =-. 当1x >时,()0k f x x +<恒成立,即ln 02x k x x -+<,等价于2ln 2x k x x <-. ……………4分令()2ln 2x g x x x =-,则()()ln 11ln g x x x x x '=-+=--. ……………5分 令()1ln h x x x =--,则()111x h x x x-'=-=. ks5u 当1x >时,()0h x '>,函数()h x 在()1,+∞上单调递增,故()()10h x h >=. ……………6分 从而,当1x >时,()0g x '>,即函数()g x 在()1,+∞上单调递增, ks5u 故()()112g x g >=. ……………7分 因此,当1x >时,2ln 2x k x x <-恒成立,则12k ≤. ……………8分 ∴所求k 的取值范围是1,2⎛⎤-∞ ⎥⎝⎦. ……………9分解法2:由(1)得()ln 2x f x x =-. 当1x >时,()0k f x x +<恒成立,即ln 02x kx x-+<恒成立. ……………4分 令()ln 2x k g x x x =-+,则()222112222k x x kg x x x x -+'=--=-.方程2220x x k -+=(﹡)的判别式48k ∆=-.(ⅰ)当0∆<,即12k >时,则1x >时,2220x x k -+>,得()0g x '<, 故函数()g x 在()1,+∞上单调递减.由于()()110,2ln 21022kg k g =-+>=-+>, 则当()1,2x ∈时,()0g x >,即ln 02x kx x-+>,与题设矛盾. …………5分(ⅱ)当0∆=,即12k =时,则1x >时,()()2222121022x x x g x x x --+'=-=-<. 故函数()g x 在()1,+∞上单调递减,则()()10g x g <=,符合题意. ………6分(ⅲ) 当0∆>,即12k <时,方程(﹡)的两根为1211,11x x =<=>, 则()21,x x ∈时,()0g x '>,()2,x x ∈+∞时,()0g x '<.故函数()g x 在()21,x 上单调递增,在()2,x +∞上单调递减, 从而,函数()g x 在()1,+∞上的最大值为()2222ln 2x kg x x x =-+. ………7分 而()2222ln 2x k g x x x =-+2221ln 22x x x <-+, 由(ⅱ)知,当1x >时,1ln 022x x x-+<,ks5u 得2221ln 022x x x -+<,从而()20g x <. 故当1x >时,()()20g x g x ≤<,符合题意. ……………8分 综上所述,k 的取值范围是1,2⎛⎤-∞ ⎥⎝⎦. ……………9分(3)证明:由(2)得,当1x >时,1ln 022x x x -+<,可化为21ln 2x x x -<, …10分又ln 0x x >, 从而,21211ln 111x x x x x >=---+. ……………11分 把2,3,4,,x n =分别代入上面不等式,并相加得,11111111111112ln 23ln 3ln 32435211n n n n n n ⎛⎫⎛⎫⎛⎫⎛⎫⎛⎫+++>-+-+-+-+- ⎪ ⎪ ⎪ ⎪ ⎪--+⎝⎭⎝⎭⎝⎭⎝⎭⎝⎭……………12分 111121n n =+--+ ……………13分 223222n n n n--=+. ……………14分。

度广州市高中二年级学生学业水平测试数学谜底

度广州市高中二年级学生学业水平测试数学谜底
故可估计生活垃圾投放错误的
概率为 P(B) 30 3 100 10
17、证明:(1)连 BD 交 AC 于 O ,连 EO ABCD 为矩形 O 为 BD 中点 又 E为PB中点 EO ∥ PD 又 EO 面ACE , PD 面ACE PD ∥面 ACE (2) PA 面ABCD, BC 面ABCD PA BC 又 ABCD 为矩形 BC AB 又 PA AB A BC 面PAB AE 面PAB BC AE 又 AP AD , E 为 PB 中点, AE PB BC PB B AE 面PBC 又 AE 面ACE 面ACE 面PBC
5
D
6
D
4sin 3 2
7
C
33
4
8
B
9
A
10
D
所以,可估计“可回收垃圾”投放正确的概率为 P(A) 19 28
(2)据数据统计,总共抽取了100 吨生活垃圾
其中“厨余垃圾”,“可回收垃圾”,“有害垃圾”,“其他垃圾”投放正确的数量 分别为 24 吨,19 吨,14 吨,13 吨。
故生活垃圾投放正确的数量为 24 19 14 13 70 吨 所以,生活垃圾投放错误的总量为100 70 30 吨 设事件 B “生活垃圾投放错误”
2014 学年度广州市高中二年级学生学业水平测试答案
一、 选择题
题号 1
答案 B
二、 填空题
11、 x 4 y 3 0
12、 0.14
13、 21 14、 2 2
三、 解答题
15、解:(1)依题意
f (t)
2
D

实验室这一天上午 10 点,即 t 10 时, 4 sຫໍສະໝຸດ n(3Ct

2014学年度广州市高中二年级学生学业水平测试英语答案

2014学年度广州市高中二年级学生学业水平测试英语答案

2014学年度广州市高中二年级学生学业水平测试英语答案I听力略II语言知识及运用第一节完形填空16-20::CBADB 21-25:ADACB 26-30:ACBAD第二节语法填空31. if 32. to hand 33. them 34. the/ this 35. having36. on 37. will make 38. which/ that 39. harmful 40. because/ since/ asIII阅读理解41-44:ABCA45-48:CBBC49-52:BDAD53-56:CCBC57-60:BCCBIV写作第一节完成句子61. outdoors 62. injured 63. straight64. reduces 65. design66. desert 67. support/ supported 68. closer69. strict 70. attended第二节句子翻译71. What shall we do with the waste paper?72. When I arrived, I found the door closed.73. Passengers are not allowed to smoke in the waiting room.74. There is more fresh water in Canada than in any other country in the world.75. We were annoyed because she refused to tell us what she did over the weekend.第三节写作Flowing through the city, the Pearl River, the Mother River of Guangzhou, plays an important role in our daily life.(非谓版) / The Pearl River, the Mother River of Guangzhou, which flows through the city, plays an important role in our daily life. (定从版) The Pearl River benefits us in various aspects. To begin with, it provides a lot of convenience for transport. Besides, it is of great benefit to our physical fitness. The reason is that people can take various sports along the river. Moreover, we can see various tourist attractions along the river and enjoy a beautiful scenery of Guangzhou at night, which helps us relax and frees us from stress and anxiety. Furthermore, it provides us a platform where we have some pleasure time. For example, we can take a walk and chat with our family and friends along it.What delights us most is that great changes have taken place along the river in the past several years. For example, the water has become cleaner without rubbish and unpleasant smells. In addition, its surroundings have become greener with more trees and parks. What’s more, it has become a land of pleasure with an increasing number of people enjoying themselves.。

2014年广东省高中化学学业水平考试试卷及答案

2014年广东省高中化学学业水平考试试卷及答案

2014年广东省高中化学学业水平考试试卷及答案机密★启用前试卷类型:A2014年6月广东省普通高中学业水平考试化学试卷本试卷共8页,65题,满分100分。

考试用时90分钟。

注意事项:1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名、考生号、试室号和座位号填写在答题卡上。

用2B铅笔将试卷类型(A)填涂在答题卡相应位置上。

将条形码横贴在答题卡右上角“条形码粘贴处”。

2.每题选出答案后,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,答案不能答在试卷上。

3.考生必须保持答题卡的整洁。

考试结束后,将试卷和答题卡一并交回。

可能用到的相对原子质量:H1C12N14O16C135.5Ca40Fe56一、单项选择题Ⅰ:本大题共30小题,每小题1分,共30分。

在每小题列出的四个选项中,只有一项最符合题意。

1.一定有化学变化发生的过程是A.蒸馏B.升华C.电解D.蒸发2.用图1所示装置分别进行下列溶液的导电性实验,灯泡最亮的是A.5%蔗糖溶液B.75%乙醇溶液C.20%葡萄糖溶液D.1molmol&L—1NaCl溶液3.CO2、CH4、N2O等气体都是“温室气体”。

下列有关说法正确的是A.CO2是一种混合物B.CH4是一种无机物C.N2O是由N2与O2组成的混合物D.CO2是由C元素和O元素组成的纯净物4.下列化学用语正确的是A.氯原子:Cl B.苯的结构简式:C6H6C.镁离子:Mg2—D.Ne原子结构示意图:5.乳制品富含钙,紫菜富含铁。

这里的“钙”和“铁”指的是A.分子B.元素C.单质D.氧化物6.实验室中可用KClO3来制备氧气。

KClO3中Cl元素的化合价为A.+7B.+5C.+1D.—17.分类是学习和研究化学的一种重要方法,下列分类合理的是A.H2SO4和HNO3都属于酸 B.K2CO3和K2O都属于盐C.KOH和Na2CO3都属于碱D.Na2O和Na2SiO3都属于氧化物8.25℃时,向KCl溶液加入少量KCl固体至溶液刚好饱和。

2014学年度广州市高中二年级学生学业水平测试

2014学年度广州市高中二年级学生学业水平测试

2014学年度广州市高中二年级学生学业水平测试一、语言运用(3题,9分)1.下列词语中加点的字,读音都相同的一组是A纶.巾/绝伦.拓.本/开拓.皈.依/扳.动B木讷./呐.喊宝藏./收藏.愀.然/揪.心C皎.洁/狡.诈离间./间.隔窈窕./挑.拨D噱.头/急遽.绸缪./纰缪.通缉./修葺.2. 下列句子中,没有语病的一项是A 亚太经合组织在推动全球范围的贸易投资自由化和便利化、深化区域经济一体化等多个方面发挥了重要作用。

B 据报道,内蒙古某化工厂附近的湖泊,成百上千只野生鸟相继死亡,当地的水污染是成为越来越严重的现实问题。

C 受大众追捧的微信,是腾讯公司2011年1月21日发表的一个为智能终端提供即时通讯服务的免费应用程序。

D 傅高义倾十年之力完成了《邓小平时代》,邓小平跌宕起伏的一生及中国的改革开放之路作了全景式描述。

3.填入下列文段中的句子,衔接最恰当的一项是那个没有养成读书习惯的人,。

他的生活是机械化的,刻板的;他只跟几个朋友和相识者接触谈话,他只看见他周遭所发生的事情。

;如果那是一本好书,他便立刻接触到世界上一个最健谈的人。

,或者对他发泄一些私人的悔恨,或者跟他讨论一些他从来不知道的学问或生活问题。

①他在这个监狱里是逃不出去的②可是当他拿起一本书的时候,他立刻走进一个不同的世界③以时间和空间而言,是受着他眼前的世界所禁锢的④这个谈话者引导他前进,带他到一个不同的国度或不同的时代A.①④③② B. ①③④②C.③②④①D. ③①②④二、文言文阅读(4题,12分)阅读下面的文言文,完成4-7题后赤壁赋是岁十月之望,步自雪堂,将归于临皋。

二客从予过黄泥之坂。

霜露既降,木叶尽脱,人影在地,仰见明月,顾.而乐之,行歌相答。

已而叹曰:“有客无酒,有酒无肴,月白风清,如此良夜何!”客曰:“今者薄..暮,举网得鱼,巨口细鳞,状如松江之鲈。

顾安所得酒乎?”归而谋诸妇。

妇曰:“我有斗酒,藏之.久矣,以待子不时之.需。

广东省2014年6月高二学生学业水平考试化学真-Word版含答案

广东省2014年6月高二学生学业水平考试化学真-Word版含答案

2014年6月 广东省普通高中学生学业水平考试化学试卷(考试时间90分钟,满分100分)可能用到的相对原子质量:H 1 C 12 N 14 O16 C1 35.5 Ca40 Fe56一、单项选择题Ⅰ:本大题共30小题,每小题1分,共30分。

在每小题列出的四个选项中,只有一项最符合题意。

1.一定有化学变化发生的过程是A .蒸馏B .升华C .电解D .蒸发2.用右图所示装置分别进行下列溶液的导电性实验,灯泡最亮的是A .5%蔗糖溶液B .75%乙醇溶液C .20%葡萄糖溶液D .1mol mol •L —1NaCl 溶液3.CO 2、CH 4、N 2O 等气体都是“温室气体”。

下列有关说法正确的是A .CO 2是一种混合物B .CH 4是一种无机物C .N 2O 是由N 2与O 2组成的混合物D .CO 2是由C 元素和O 元素组成的纯净物4.下列化学用语正确的是A .氯原子:ClB .苯的结构简式:C 6HC .镁离子:Mg 2—D .Ne 原子结构示意图:5A .分子 B .元素 C .单质 D .氧化物6.实验室中可用KClO 3来制备氧气。

KClO 3中Cl 元素的化合价为A .+7B .+5C .+1D .—17.分类是学习和研究化学的一种重要方法,下列分类合理的是A .H 2SO 4和HNO 3都属于酸B .K 2CO 3和K 2O 都属于盐C .KOH 和Na 2CO 3都属于碱D .Na 2O 和Na 2SiO 3都属于氧化物8.25℃时,向KCl 溶液加入少量KCl 固体至溶液刚好饱和。

在这一过程中没有发生改变的是A .溶液中溶质的质量B .溶液中KCl 质量分数C .溶液中溶剂的质量D .KCl 溶液质量9.复印机工作时会产生一种腥臭味的气体,该气体只由氧元素组成,其化学式为A .O 2B .NO 2C .O 3D .N 2O10.陶瓷家族中有“全能冠军”之称的工程陶瓷由氮元素与X元素组成,其化学式为X3N4。

2014_2016年广东学业水平考试物理试题(卷)与答案

2014_2016年广东学业水平考试物理试题(卷)与答案

2014年6月广东省普通高中学业水平考试物理本单项选择题Ⅰ:本大题共30小题,每小题1分,共30分。

在每小题列出的四个选项中,只有一项符合题目要求。

1. 在经典力学的建立过程中,牛顿和伽利略均作出了重要贡献.下列说法正确的是A. 伽利略总结出了惯性定律B. 牛顿提出了万有引力定律C. 伽利略总结得出作用力与反作用力之间的关系D. 牛顿利用理想实验推断出匀速运动需要力来维持2. 下列物理量为矢量的是A. 速度B. 时间C. 动能D. 质量3. 在下列力学单位中,属于国际单位制中基本单位的是A. 毫米B. 厘米C. 千克D. 克4. 在物理学中,突出问题的主要方面,忽略次要因素,建立理想化物理模型,是经常用的一种科学研究方法.质点就是这种物理模型之一.关于地球能否看作质点,下列说法正确的是A. 地球的质量太大,不能把地球看作质点B. 地球的体积太大,不能把地球看作质点C. 研究地球的自转时可以把地球看作质点D. 研究地球绕太阳公转时可以把地球看作质点5. 在行驶汽车上的乘客,看到道路两旁的树木不断向后退,这是因为乘客选择的参考系是A. 所乘坐的汽车B. 地面上的建筑物C. 道路旁的树木D. 路边站着的人6. 下列图示为一位体操运动员的几种挂杠方式,其手臂用力最小的是B7. 根据牛顿运动定律,下列表述正确的是A. 力是维持物体运动的原因B. 力是改变物体运动状态的原因C. 外力停止作用后,物体由于惯性会停止D. 物体做匀速直线运动时,所受合外力不为零8. 关于一对作用力和反作用力,下列说法正确的是A. 它们的方向相同B. 它们的大小不相等C. 它们同时产生,同时消失D. 它们作用在同一物体上9. 关于弹力,下列表述正确的是A. 杯子放在桌面上,杯和桌均不发生形变B. 杯子放在桌面上,杯和桌之间没有弹力作用C. 在弹性限度内,弹簧的弹力与弹簧的长度成正比D. 在弹性限度内,弹簧的弹力与弹簧的伸长(或缩短)量成正比10. 如图1所示,细杆上固定两个小球a和b,杆绕O点做匀速转动.下列说法正确的是A. a、b两球角速度相等B. a、b两球线速度相等C. a球的线速度比b球的大D. a球的角速度比b球的大11. 某一时刻,一物体沿水平和竖直方向的分速度分别为8m/s和6m/s,则该物体的速度大小是A. 2 m/sB. 6 m/sC. 10 m/sD. 14 m/s12. 下列做平抛运动的物体是A. 升空的火箭B. 树上落下的果实C. 投向篮框的篮球D. 水平飞行的飞机释放的物体13. 某同学投掷铅球.每次出手时,铅球速度的大小相等,但方向与水平面的夹角不同.关于出手时铅球的动能,下列判断正确的是A. 夹角越大,动能越能大B. 夹角越大,动能越小C. 夹角为 45o时,动能最大D. 动能的大小与夹角无关14. 若使空间探测器挣脱太阳引力的束缚,其发射速度至少要达到A. 环绕速度B. 第一宇宙速度C. 第二宇宙速度D. 第三宇宙速度15. 下列关于物体所受的滑动摩擦力表述正确的是A.方向垂直于接触面B.大小与正压力成正比C.大小与正压力成反比D.方向始终与物体的运动方向相同16. 图2所示为竖直平面内的三条路径.物体沿路径1、2、3从P点运动到Q点的过程中,重力做功分别为W1 、W2和W3,下列判断正确的是A. W1 > W2B. W1 > W3C. W2 > W3D. W1 = W2 = W317. 关于超重与失重,下列说法正确的是A. 超重就是物体所受的重力增加了B. 失重就是物体所受的重力减少了C. 完全失重就是物体所受的重力为零D. 超重或失重时物体所受的重力不变18. 如图3所示,质量为m的小球,从离桌面H高处自由下落.已知桌面离地高度为h,若以桌面为参考平面,则小球落到地面时的重力势能为(g为重力加速度)A. -mghB. -mg(H + h)C. mgHD. mg(H-h)19. 绕地球做匀速圆周运动的人造卫星,其向心力来源于A. 卫星自带的动力B. 卫星的惯性C. 地球对卫星的引力D. 卫星对地球的引力20. 某同学在“探究匀变速直线运动”的实验中,使用了频率为50Hz的电磁打点计时器,在纸带上打下相邻两个点的时问间隔是A. 0. 01 sB. 0. 02 sC. 0. 1 sD.0. 2 s21. 下列正确描述正点电荷电场线的图示是 A22. 如图4所示,一通电直导线与匀强磁场方向垂直,导线所受安培力的方向是A. 向上B. 向下C. 垂直纸面向里D. 垂直纸面向外23. 电场线可以直观地描述电场的方向和强弱,电场线上某一点的切线方向表示是A. 正点电荷在该点所受电场力的方向B. 负点电荷在该点所受电场力的方向C. 正点电荷在该点所受电场力的垂直方向D. 负点电荷在该点所受电场力的垂直方向24. 如图5所示,三角形线圈abc放在范围足够大的匀强磁场中并做下列运动,能产生感应电流的是A. 向上平移B. 向右平移C. 向左平移D. 以ab为轴转动25. 发电机利用水力、风力等动力推动线圈在磁场中转动,将机械能转化为电能.这种转化利用了A. 电流的热效应B. 电磁感应原理C. 电流的磁效应D. 磁场对电流的作用原理26. 如图6所示,小磁针放置在螺线管轴线的左侧.当螺线管通以恒定电流时,不计其它磁场的影响,小磁针静止时N极的指向是A. 向左B. 向右C. N上D. 向下27. 电子通过磁场时会发生偏转,这是因为受到A. 库仑力的作用B. 万有引力的作用C. 洛伦兹力的作用D. 安培力的作用28. 如图7所示,三个线圈放在匀强磁场中,面积S1 <S2 <S3.穿过三个线圈的磁通量分别为为Ф1 、Ф2和Ф3,下列判断正确的是A. Ф1 = Ф2B. Ф2 =Ф3C. Ф1 > Ф2D. Ф3 > Ф229. 下列过程中,没有直接利用电磁波的是A. 电冰箱冷冻食物B. 用手机通话C. 微波炉加热食物D. 用收音机收听广播30. 家用电饭锅使用的传感器类型是A. 温度传感器B. 声音传感器C. 红外传感器D. 湿度传感器二、单项选择题Ⅱ:本大题共20小题,每小题2分,共40分。

2014学年度广州市高二学业水平测试(数学)含答案

2014学年度广州市高二学业水平测试(数学)含答案

2014年广州市高中二年级学生学业水平测试•数学一、选择题:本大题共10小题,每小题5分,满分50分.在每小题给出的四个选项中,只有一个是符合题目要求的. 1、已知集合,,则.2、下列函数中,与函数定义域相同的函数为.3、设是等差数列的前项和,已知,,则.4、某几何体的三视图及其尺寸如图所示,则这个几何体的体积是.5、将函数的图像向左平移个单位,得到函数的图像,则下列说法正确的是. 的最小正周期为 是偶函数的图像关于点对称在区间上是减函数6、已知,则下列不等关系式中正确的是.7、在中,已知,,则.8、设满足约束条件 则的最小值为9、设为定义在上的奇函数,当时,(为常数),则的值为10、小李从甲地到乙地的平均速度为,从乙地到甲地的平均速度为,他往返甲乙两地的平均速度为,则435俯视图侧视图正视图二、填空题:本大题共4小题,每小题5分,满分20分.11、过点且与直线平行的直线方程是12、如图,在半径为的圆内随机撒粒豆子,有粒落在阴影部分,据此估计阴影部分的面积为13、执行如图所示的程序框图,则输出的的值是14、在中,已知,,,则的长为三、解答题:本大题共6小题,满分80分.解答应写出文字说明、演算步骤和推证过程.15、(本小题满分12分)实验室某一天的温度(单位:)随时间(单位:)的变化近似满足函数关系:.(1)求实验室这一天上午10点的温度;(2)当为何值时,这一天中实验室的温度最低.近年来,某市为了促进生活垃圾的分类处理,将生活垃圾分为“厨余垃圾”、“可回收垃圾”、“有害垃圾”和“其他垃圾”等四类,并分别设置了相应的垃圾箱,为调查居民生活垃圾的正确分类投放情况,现随机抽取了该市四类垃圾箱总计100吨生活垃圾,数据统计如下(单位:吨):“厨余垃圾”箱 “可回收垃圾”箱 “有害垃圾”箱 “其他垃圾”箱厨余垃圾24 4 1 2 可回收垃圾4 19 2 3 有害垃圾2 2 14 1 其他垃圾1 5 3 13 (1)试估计“可回收垃圾”投放正确的概率; (2)试估计生活垃圾投放错误..的概率.17、(本小题满分14分)如图所示,四棱锥中,底面为矩形, ,,点为的中点.(1)求证:;(2)求证:.EDCBAP已知直线与圆相交于不同两点,.(1)求实数的取值范围(2)是否存在实数,使得过点的直线垂直平分弦?若存在,求出的值;若不存在,请说明理由.已知等差数列的公差为,且,,成等比数列. (1)求数列的通项公式;(2)设数列的前项和为,求证:.已知,函数.(1)当时,求函数的单调递增区间;(2)求函数的零点个数.2014年广州市高中二年级学生学业水平测试数学参考答案一、选择题题号 1 2 3 4 5 6 7 8 9 10 答案 B D C C D D C B A D二、填空题11、12、13、14、三、解答题15、解:(1)依题意实验室这一天上午10点,即时,,所以上午10点时,温度为.(2)因为,所以,令,即,所以故当时,即时,取得最小值,故当时,这一天中实验室的温度最低。

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2014学年度广州市高中二年级学生学业水平测试英语本试卷分四部分,共12页,满分150分。

考试时间120分钟。

注意事项:1.答卷前,考生务必在答题卡上用黑色字迹的钢笔或签字笔填写自己的测试证号和姓名;填写考区考场室号、座位号,再用2B铅笔把对应的两个号码涂黑。

2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑;如需改动,用橡皮擦干净后,再选涂其他答案;不能答在试卷上。

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的相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔、圆珠笔和涂改液。

不按以上要求作答的答案无效。

4.考生必须保持答题卡的整洁,考试结束时,将试卷和答题卡一并交回。

II 语言知识及应用(共两节,满分45分)第一节完形填空(共15小题,每小题2分,满分30分)阅读下面短文,掌握其大意,然后从16-30各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

There were once two doors in the same house. One was a beautiful living-room door, and the other was just a / an 16 bathroom door.What they had in 17 was that both led awful lives. The house was full of 18 children who were always slamming (摔门)and kicking the doors. Each night, when everyone was asleep, the doors would talk about their poor 19 . The living-room door was always ready to 20 with anger, but the bathroom door would calm him down, saying “Don’t worry. They’re chi ldren. They’ll soon learn. Be patient and things will21.”And so the living-room door would calm down for a while. But one day, after a big party and much slamming and kicking of the doors, the living-room door22lost his temper, saying, “That’s enough!The next time someone slams me, I’m going to 23 , and they’ll learn a thing or two.”The next day, the first time he was slammed, the living-room door broke. This caused great 24in the house, and the children were punished. The living-room door was filled with 25 . However, after a few days, the house owner got tired of the26 of having a broken door. Instead of mending the door, they decided to27it. The old door was thrown into the rubbish.There lay the beautiful living-room door,28what he had done. For not being29 enough, he now found himself abandoned, waiting to be turned into firewood. Meanwhile, hisfriend, the ordinary bathroom door, remained in his place, and the children were treating him with greater30.16. A. new B. heavy C. ordinary D. silent17. A. time B. common C. turn D. short18. A. naughty B. curious C. nervous D. polite19. A. dream B. appearance C. quality D. luck20. A. attack B. explode C. repeat D. retire21. A. improve B. matter C. return D. suffer22. A. frequently B. fortunately C. happily D. finally23. A. break B. teach C. work D. shout24. A. joy B. benefit C. trouble D. doubt25. A. surprise B. satisfaction C. pity D. disappointment26. A. inconvenience B. inexperience C. inactivity D. injustice27. A. sell B. paint C. replace D. forget28. A. enjoying B. regretting C. expecting D. describing 39. A. patient B. careful C. beautiful D. friendly30. A. force B. anger C. peace D. care第二节语法填空(共10小题,每小题1.5分,满分15分)阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为31-40的相应位置上。

Would you give up your smartphone for free food? Starting on Monday, family-friendly Italian restaurant Salvatore’s will offer customers two meals for the price of one, 31 they put away their smartphones before taking their seats. According to the owner, Sal Lupoli, “Every diner at the table must agree 32 (hand) in their phone before eating. The phones will be stored safely and returned to 33 when their meals are finished.”MrLupoli thought of 34 idea after noticing that customers “were not speaking to each other while 35 (have) dinn er.”At first look, this seems like just another restaurant promotion(促销). But it might also be a way to encourage people to focus 36 each other and their surroundings instead of putting pictures of their latest meal online. Perhaps it 37 (make) kids actually eat and talk instead of watching another video on YouTube.According to a resent Boston Globe article 38 examined the effects of screen time on children’s brains, as little as 45 minutes of screen time per day can be 39 (harm), about the length of a typical midday meal. However, MrLupoli has decided to provide the offer only during day time 40 he thinks most kids will go crazy without their iPads at supper time.III阅读理解(共一节,20小题,每小题2分,满分40分)阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

AThe great avenues are quiet, and the shops are closed. There’s the smell of fresh bread from a bakery somewhere. It would be hard to say which time of the day in Paris I prefer but this is probably it. Soon the streets will be full of people and traffic. As with most other cities, you see the real Paris when the city wakes up.There is, however, another part of Paris which is silent and free from people 24 hours a day. Under the city are hundreds of kilometres of abandoned tunnels. During the 19th century, Paris needed more stones for buildings above the ground, so people dug tunnels beneath the city. After that, many farmers grew mushrooms in them. During World War II, the French soldiers also used them. Since the 1970s, many young people have started spending days and nights below the city in these tunnels. It’s now a place for parties, theatre performances, art galleries – anything goes!A “normal” tourist can visit some parts of Paris’s tunnel system, such as the underground cemetery, where you can see the bones of about six million Parisians. The bodies came from cemeteries above the ground two centuries ago when the city needed more space.However, people are not allowed to enter other parts of the tunnel system. It’s very dangerous because some tunnels might collapse and people will be trapped below. Nevertheless, there are people who will take you to visit them. I have found two “unofficial” tour guides who take me through many tunnels. After a couple of hours we arrive at a room which isn’t on any map. The room is comfortable and clean with a table and chairs and a bed. The guide tells me there are many other places like this. “Many people come down here to party, some people to paint… We do what we want here.”41. What is the writer’s favourite time of the day in Paris?A. Early morning.B. Midday.C. Early evening.D. Late night.42. Why did French people first start digging tunnels?A. For many housing.B. For building stones.C. For entertainment.D. For growing mushrooms.43. The underlined word “collapse” in the last paragraph in closest in meaning to .A. disappearB. closeC. fall downD. blow up44. Which of the following is the most suitable title for this passage?A. Tunnels under ParisB. Travel around ParisC. The history of ParisD. The best-known tourist attraction in ParisBWhat would you do if you saw a mountain gorilla? Most people would probably be veryafraid and run away. That’s because gorilla s have a very frightening appearance. Firstly, gorillas are huge. They can grow up to 2 metres tall and can weigh more than 200 kilograms (made gorillas weigh twice as much as female gorillas). Secondly, gorillas can make a lot of noise. They can roar, beat their chests and show their teeth. In fact, these angry actions are very rare and mail gorillas only do it when their families are under attack.The truth is, gorillas are incredibly intelligent, gentle and social animals that stay together in small fami ly groups. The leader is the largest male, and is called the silverback. That’s because of the beautiful silver fur on its back. Gorillas spend almost all their time on the forest floor, eating and sleeping. They are mainly vegetarian, although they eat some insects. Young gorillas often play together. They run around and climb trees. At night, the animals make a nest to sleep in. The lighter gorillas nest in trees, the heavier gorillas make nests on the ground and babies sleep with their mothers. Gorillas rarely attack humans. They only fight when something or someone attacks them or their young. In that situation, they will fight to the death. Hunters looking for baby gorillas may have to kill the whole family to get what they want.Sadly, there are fewer than 650 mountain gorillas left in the wild, which means they are an endangered animal. These gorillas only live in the mountain jungles of central Africa. They are endangered because people hunt them for food and for sport. They are also threatened by war, and humans cutting down their forests for farmland, fuel and housing. Life for these gentle giants isn’t peaceful.45. What is a silverback according to the passage?A. Any gorilla with silver fur.B. Any male gorilla in the group.C. The leader in the gorilla family.D. The oldest gorilla in the group.46. Where would you expect to find a silverback gorilla sleeping at night?A. In the trees.B. On the ground.C. With the baby gorillas.D. Away from the others.47. The underline word “they” in Paragraph 2 refers to ________.A. fightersB. huntersC. baby gorillasD. gorilla families48. What is the main purpose of the last paragraph?A. To describe the lifestyle of mountain gorillas.B. To summarize the details of the passage.C. To explain why mountain gorillas are endangered.D. To examine the behavior of mountain gorillas.CYou’ve seen restaurant reviews in newspaper, or perhaps in magazines or the Internet. You’ve read those reviews when you wanted to know about the quality and price of the food at a new restaurant. But who writes the articles? Who gets paid to eat? Those lucky people are food critics.Food critics are journalists who eat at restaurants and write reviews that gives that givereaders the feeling that they have visited the restaurant themselves. The articles almost always include a description of the restaurant, for example, whether it is nicely decorated or has a beautiful view of the ocean. The menu, prices, and service are main task is to write about the food generally described as well, but a food critic's For food fans, dining involves all the senses, not just for the stomach Food critics may tell readers about the colors of fresh vegetables, or the rich smell of a perfectly cooked chicken.They will mention whether they were listening to soft music while they ate. or the noises of you and pans being washed in the restaurant's kitchen. And most importantly, they will describe the taste of every dish on the table.All of this may sound easy enough, but food critics do face some challenges. First, food critics must be excellent writers. Their job is to give the correct information in an entertaining way. It is also important for food critics to have an excellent memory since taking notes at the table is not something most people do. And looking like a typical customer is essential for keeping their identity secret, perhaps the most difficult challenge. This is done to make sure the critic receives the same food and service as any other diner.Despite the challenges, many people would love such a job. Anyone who is thinking about becoming a food critic should start by developing strong writing skills and teaming as much about food and cooking as possible.49. What do food critics usually do?A. Manage restaurants.B. Review restaurant food.C. Teach people how to cook.D. Buy food for restaurants.50. According to Paragraph 3. which sense do food critics probably use LEAST?A. Taste.B. Sight.C. Sound.D. Touch.51. What is the most difficult challenge facing a good critic?A. Hiding his/her identity.B. Remembering the different foods.C. Deciding which restaurant to visit.D. Avoiding damaging a restaurant's name.52. According to the passage, what qualities does a good food critic need most?A. Fairness and Internet skillsB. Strong memory and good cooking skills.C. Honesty and fashion sense.D. Writing skills and food knowledge.DShe walked along the river until the policeman stopped her. It was one o'clock in the morning, he said, not the best time to be walking alone by the side of a half-frozen river. He sailed at her, then offered to walk her home. It was the first day of the new year, 1946, eight and a half months after the British army had defeated Germany in the war.That February, my mother turned twenty-six. It was difficult for strangers to believe that she had ever been held in a Jewish war prison by the Germans. Her face was smooth and round. She wore lipstick and applied make-up to her large dark eyes. She dressed fashionably. But my motherwas a shell, a doll who moved and spoke but who was completely empty inside. The people closest to her were gone. She had no proof that they were truly dead. No eye-witness had survived to confirm that her husband had been killed in the "Jewish only" prison. There was no one living who had seen her parents die. The lack of certainty had broken her heart and perhaps her mind too.At night, before she went to sleep and during the day as she stood washing dishes at the restaurant where she worked, she wondered if by some chance, her parents had escaped the death camps and were living, old and helpless, somewhere in Poland. What if only one of them had died? What if they had survived and had died of cold or hunger after she had been fired, while she was in Paris dancing with British officers?She did not talk to anyone about these things. No one, she thought, wanted to hear them. She woke up in the mornings, went to work, did the shopping and came home. Day after day. Like a robot.53. Why did the policeman stop the writer's mother at the beginning of the story?A. She looked like a thief.B. She seemed to be very nervous.C. He thought her actions .ere dangerous.D. It was forbidden to be out late at night54. Why did arrangers find it hard to believe the writer's mother bad been in a Jewish war prison?A. She had a very positive attitude.B. Most prisoners died during the war.C. She looked too young said pretty.D. They didn't believe such prisons existed.55. By comparing his mother to a doll in Paragraph 2 the writer wants to say that she________.A. was very beautifulB. was unable to express be feelingsC. could be easily continuedD. was concerned about her appearance56. Which of the following did the writer's mother often do?A. Went dancing with British officers.B. Walked along the river.C. Thought about her fu*.D. Talked about her parents.ESherpas are believed to have come from Tibet into the valleys near Mount Everest about 500 years ago. Today, they are considered the world's best mountain guides.Five Sherpas tell the stories behind why they climb for a living, despite the job's many difficulties.Dorje: Being a mountain guide is the only profession for Sherpas as we don't have enough education for other jobs. This is the reason why we climb. We know it's a dangerous job, but we need the money to raise our families and improve our lives.Yangzi: My father was also a guide for foreigners, but he never succeeded in getting to the top. So the reason I am climbing is to fulfill the dreams of my father, who inspired me. In the past, women were only involved in household activities. Even though I am female, I have the courage to work just like a man.Panura: I have to perform this dangerous job because of a lack of education. I will educate my child the best way possible, and hope he can find another job. I don't want him to be a guide. I lost my brother to the mountains. Many have lost their lives to accidents It is just not a safe job.Dawa: Things are different now. We used to organize night parties. We would make campfire at Base Camp. We enjoyed our nights with traditional dance and cheap rice wine. But our traditions are slowly dying. There is a chance that Sherpa culture might disappear. We have to think about saving one another, our culture, our traditions.Phutashi: If everyone is aware, we can save our culture. Nothing is impossible. Without Shcrpas, it is impossible for Western climbers. In every expedition, the path is opened by Sherpas, the ropes arc fixed by Sherpas, and the westerners are taken care of by Sherpas. But they forget about what we do to help them. Our hard work and dedication is kept in the shadows.57. According to the Sherpas, what is the main reason that they climb for a living?A. They are born mountain climbers.B. They are not educated enough to do other jobs.C. They think it a perfect way to earn big money.D. They want to protect their own culture.58. Whose father was also a mountain guide?A. Dawa's.B. Dorje's.C. Yangzi's.D. Panura's.59. Which Sherpas show concern about maintaining their culture?A. Yangzi and Phutashi.B. Dorjc and Panura.C. Dawa and Phutashi.D. Panura and Dawa.60. Which of the following statements about Western climbers would Phutashi agree with?A. They always pay their guides a fair price.B. They do not appreciate the work of the Sherpa guides.C. They are more skilful than the Sherpa climbers.D. They are important for the local economy.IV 写作(共三节,满分45分)第一节完成句子(共10小题,每小题1分,满分10分)请根据句子的意思和汉语提示完成下列句子,每空只填一个单词。

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