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山东省枣庄东方国际学校2014-2015学年高二上学期期中考试数学试卷及答案

山东省枣庄东方国际学校2014-2015学年高二上学期期中考试数学试卷及答案

山东省枣庄东方国际学校2014-2015学年高二上学期期中考试数学试题第Ⅰ卷 客观卷(共36分)一、选择题(本大题共12个小题,每小题3 分,共36 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.已知抛物线)0(22>=p px y 的准线与圆05422=--+x y x 相切,则p 的值为A .10B .6C .4D .22.将正方体(如图1所示)截去两个三棱锥,得到图2所示的几何体,则该几何体的左视图为( )A .B .C .D .3.直线210mx y m -++=经过一定点,则该定点的坐标为( )A .()2,1-B .()2,1C .()1,2-D .()1,24.在空间直角坐标系中,O 为坐标原点,设A (12,12,12),B (12,12,0),C (13,13,13),则A .OA ⊥AB B .AB ⊥ACC .AC ⊥BCD .OB ⊥OC5.若P (2,-1)为圆(x -1)2+y 2=25的弦AB 的中点,则直线AB 的方程为 A .x -y -3=0 B .2x +y -3=0C .x +y -1=0D .2x -y -5=06.已知m ,n 是两条不同直线,α,β,γ是三个不同平面,下列命题中正确的是 A .若m ∥α,n ∥α,则m ∥n B .若α⊥γ,β⊥γ,则α∥βC .若m ∥α,m ∥β,则α∥βD .若m ⊥α,n ⊥α,则m ∥n7.如图,在长方体ABCD -A 1B 1C 1D 1中,M ,N 分别是棱BB 1,B 1C 1的中点,若∠CMN =90°,则异面直线AD 1和DM 所成角为A .30°B .45°C .60°D .90°8.已知直线l 过点(-2,0),当直线l 与圆x 2+y 2=2x 有两个交点时,其斜率k 的取值范围是 A .(-22,22) B .(-2,2)C .(-24,24) D .(-18,18)9.在三棱柱ABC -A 1B 1C 1中,各棱长相等,侧棱垂直于底面,点D 是侧面BB 1C 1C 的中心,则AD 与平面BB 1C 1C 所成角的大小是A .30°B .45°C .60°D .90°10.过点M (-2,4)作圆C :(x -2)2+(y -1)2=25的切线l ,且直线l 1:ax +3y +2a =0与l 平行,则l 1与l 间的距离是A .85B .25C .285D .12511.点P (4,-2)与圆x 2+y 2=4上任一点连线的中点轨迹方程是 A .(x -2)2+(y +1)2=1 B .(x -2)2+(y -1)2=4C .(x -4)2+(y -2)2=1D .(x -2)2+(y -1)2=112.设P (x ,y )是圆x 2+(y +4)2=4上任意一点,则-2+-2的最小值为A .26+2B .26-2C .5D .6第Ⅱ卷 主观卷(共36分)二、填空题(本大题共4小题,每小题4分,共16分)13.顺次连结A (1,0),B (1,4),C (3,4),D (5,0)所得到的四边形绕y 轴旋转一周,所得旋转体的体积是________.14.经过点P (1,2)的直线,且使A (2,3),B (0,-5)到它的距离相等的直线方程为________. 15.圆x 2+y 2+Dx +Ey +F =0关于直线l 1:x -y +4=0与直线l 2:x +3y =0都对称,则D =________,E =________.16.已知圆C 过点(1,0),且圆心在x 轴的正半轴上,直线l :y =x -1被圆C 所截得的弦长为22,则过圆心且与直线l 垂直的直线的方程为________.三、解答题(本题共6个小题,每小题8分)17.如图,四棱锥P-ABCD中,底面ABCD为平行四边形,∠DAB=60°,AB=2AD,PD⊥底面ABCD.(1)证明PA⊥BD;(2)设PD=AD=1,求棱锥D-PBC的高.18.如图,矩形ABCD的两条对角线相交于点M(2,0),AB边所在直线的方程为x-3y-6=0,点T(-1,1)在AD边所在直线上.(1)求AD边所在直线的方程;(2)求矩形ABCD外接圆的方程.19.已知圆的半径为10,圆心在直线y=2x上,圆被直线x-y=0截得的弦长为42,求圆的方程.20.如图,几何体E-ABCD是四棱锥,△ABD为正三角形,CB=CD,EC⊥BD.(1)求证:BE=DE;(2)若∠BCD=120°,M为线段AE的中点,求证:DM∥平面BEC.21.在平面直角坐标系xOy中,已知圆C1:(x-4)2+(y-5)2=4和圆C2:(x+3)2+(y-1)2=4. (1)若直线l 1过点A (2,0),且与圆C 1相切,求直线l 1的方程;(2)直线l 2的方程是x =52,证明:直线l 1上存在点P ,满足过P 的无穷多对互相垂直的直线l 3和l 4,它们分别与圆C 1和圆C 2相交,且直线l 3被圆C 1截得的弦长与直线l 4被圆C 2截得的弦长相等.22.如图已知三棱柱ABC -A 1B 1C 1中,D 、E 分别是AB 、BB 1的中点.(1)证明:BC 1∥面A 1CD ;(2)设AA 1=AC =CB =2,AB =22,求三棱锥C -A1DE 的体积.2014-2015学年度山东省峄城东方国际中学高二第一学期期中考试数学试题参考答案一、选择题D 、 D 、 A 、 C 、 A 、 D 、 D 、 C 、 C 、 D 、 A 、 B 二、填空题13.184π3 14.4x -y -2=0或x =1 15.6 -2 16.x +y -3=0三、解答题17.(1)证明:因为∠DAB =60°,AB =2AD ,由余弦定理得BD =3AD . 从而BD 2+AD 2=AB 2,故BD ⊥AD .又PD ⊥底面ABCD ,可得BD ⊥PD . 所以BD ⊥平面PAD .故PA ⊥BD .(2)如图,作DE ⊥PB ,垂足为E .已知PD ⊥底面ABCD ,则PD ⊥BC .由(1)知BD ⊥AD , 又BC ∥AD ,所以BC ⊥BD .故BC ⊥平面PBD ,所以BC ⊥DE .则DE ⊥平面PBC . 由题设知PD =1,则BD =3,PB =2.根据DE·PB =PD·BD ,得DE =32,即棱锥D -PBC 的高为32.18.解:(1)因为AB 边所在直线的方程为x -3y -6=0,且AD 与AB 垂直,所以直线AD 的斜率为-3.又因为点T (-1,1)在直线AD 上,所以AD 边所在直线的方程为y -1=-3(x +1),即3x +y +2=0.(2)由⎩⎪⎨⎪⎧x -3y -6=03x +y +2=0,解得点A 的坐标为 (0,-2).因为矩形ABCD 两条对角线的交点为M (2,0),所以M 为矩形ABCD 外接圆的圆心.又r =|AM|=-2++2=22.所以矩形ABCD 外接圆的方程为(x -2)2+y 2=8.19.解:方法一:设圆的方程是(x -a )2+(y -b )2=10.因为圆心在直线y =2x 上, 所以b =2a . ①解方程组⎩⎪⎨⎪⎧x -y =0,-2+-2=10,得2x 2-2(a +b )x +a 2+b 2-10=0, 所以x 1+x 2=a +b ,x 1·x 2=a 2+b 2-102.由弦长公式得2·+2-2+b 2-=42,化简得(a -b )2=4. ② 解①②组成的方程组,得a =2,b =4,或a =-2,b =-4.故所求圆的方程是(x -2)2+(y -4)2=10,或(x +2)2+(y +4)2=10.方法二:设圆的方程为(x -a )2+(y -b )2=10,则圆心为(a ,b ),半径r =10,圆心(a ,b )到直线x -y =0的距离d =|a -b|2.由弦长、弦心距、半径组成的直角三角形得d 2+(422)2=r 2,即-22+8=10,所以(a -b )2=4.又因为b =2a ,所以a =2,b =4,或a =-2,b =-4.故所求圆的方程是(x -2)2+(y -4)2=10,或(x +2)2+(y +4)2=10.20.解:(1)设BD 中点为O ,连接OC ,OE ,则由BC =CD 知,CO ⊥BD ,又已知CE ⊥BD ,所以BD ⊥平面OCE .所以BD ⊥OE ,即OE 是BD 的垂直平分线,所以BE =DE .(2)取AB 中点N ,连接MN ,DN ,∵M 是AE 的中点,∴MN ∥BE ,∵△ABD 是等边三角形,∴DN ⊥AB .由∠BCD =120°知,∠CBD =30°,所以∠ABC =60°+30°=90°,即BC ⊥AB ,所以ND ∥BC ,所以平面MND ∥平面BEC ,故DM ∥平面BEC .21.解:(1)若直线斜率不存在,x =2符合题意;当直线l 1的斜率存在时,设直线l 1的方程为y =k (x -2),即kx -y -2k =0, 由条件得|4k -5-2k|k 2+1=2,解得k =2120,所以直线l 1的方程为x =2或y =2120(x -2),即x =2或21x -20y -42=0.(2)由题意知,直线l 3,l 4的斜率存在,设直线l 3的斜率为k ,则直线l 4的斜率为-1k,设点P 坐标为(52,n ),互相垂直的直线l 3,l 4的方程分别为:y -n =k (x -52),y -n =-1k (x-52),即kx -y +n -52k =0,-1k x -y +n +52k=0, 根据直线l 3被圆C 1截得的弦长与直线l 4被圆C 2截得的弦长相等,两圆半径相等.由垂径定理得:圆心C 1到直线l 3与圆心C 2到直线l 4的距离相等.有⎪⎪⎪⎪4k -5+n -52k k 2+1=⎪⎪⎪⎪3k -1+n +52k 1k 2+1,化简得n k n -=-221)25(或)21(21)21(n n k n +-=--=+ 关于k 的方程有无穷多解,有021=+n ,即21-=n ,即直线2l 上满足条件的点P 是存在的,坐标是(21,25-) 22.解:(1)连结AC 1交A 1C 于点F ,则F 为AC 1的中点,又D 是AB 中点,连结DF ,则BC 1∥DF ,因为DF ⊂平面A 1CD ,BC 1⊄平面A 1CD ,所以BC 1∥平面A 1CD .(2)因为ABC -A 1B 1C 1是直三棱柱,所以AA 1⊥CD ,由已知AC =CB ,D 为AB 中点,所以,CD ⊥AB ,又AA 1∩AB =A ,于是CD ⊥平面ABB 1A 1,由AA 1=AC =CB =2,AB =22得,∠ACB =90°,CD =2,A 1D =6,DE =3,A 1E =3,故A 1D 2+DE 2=A 1E 2,即DE ⊥A 1D ,所以VC -A 1DE =13×12×6×3×2=1.。

江苏省盐城市2015届高三年级第一学期期中考试数学试题

江苏省盐城市2015届高三年级第一学期期中考试数学试题

江苏省盐城市2015届高三年级第一学期期中考试数学试题(总分160分,考试时间120分钟)一、填空题:本大题共14小题,每小题5分,计70分.不需写出解答过程,请把答案写在答题纸的指定位置上. 1. 若集合{}0,1A =,集合{}0,1B =-,则AB = ▲ .2.命题“若a b >, 则22a b>”的否命题为 ▲ .3.函数2()sin f x x =的最小正周期为 ▲ . 4.若幂函数()()f x x Q αα=∈的图象过点(2,2,则α= ▲ . 5.若等比数列{}n a 满足23a =,49a =,则6a = ▲ .6.若,a b 均为单位向量,且(2)⊥-a a b ,则,a b 的夹角大小为 ▲ .7.若函数12()21x xmf x ++=-是奇函数,则m = ▲ . 8.已知点P 是函数()cos (0)3f x x x π=≤≤图象上一点,则曲线()y f x =在点P 处的切线斜率的最小值为 ▲ .9.在等差数列}{n a 中,n S 是其前n 项和,若75=+4S S ,则93S S -= ▲ . 10.在ABC ∆中,,,a b c 分别为角,,A B C 的对边,若4a =,3b =,2A B =,则sin B = ▲ .11.如图,在等腰ABC ∆中,=AB AC ,M 为BC 中点,点D 、E 分别在边AB 、AC 上,且1=2A D DB ,=3AE EC ,若90DME ∠=,则cos A = ▲ .12.若函数2()2f x x a x =+-在(0,)+∞上单调递增,则实数a 的取值范围是 ▲ . 13. 设函数211*3224()n n y x x n N --=-⨯+⨯∈的图象在x 轴上截得的线段长为n d ,记数列{}n d 的前n 项MEDAB第11题和为n S ,若存在正整数n ,使得()22log 118m n n S -+≥成立,则实数m 的最小值为 ▲ .14.已知函数32|2|(1)()ln (1)x x x x f x x x ⎧--+<=⎨≥⎩,若命题“t R ∃∈,且0t ≠,使得()f t kt ≥”是假命题,则实数k 的取值范围是 ▲ .二、解答题:本大题共6小题,计90分.解答应写出必要的文字说明,证明过程或演算步骤,请把答案写在答题纸的指定区域内. 15. (本小题满分14分)已知函数()sin cos (0)f x x a x ωωω=+>满足(0)f ()f x 图象的相邻两条对称轴间的距离为π.(1)求a 与ω的值; (2)若()1f α=,(,)22ππα∈-,求5cos()12πα-的值.16. (本小题满分14分)设函数2lg(43)y x x =-+-的定义域为A ,函数2,(0,)1y x m x =∈+的值域为B . (1)当2m =时,求A B ;(2)若“x A ∈”是“x B ∈”的必要不充分条件,求实数m 的取值范围.17. (本小题满分14分)设△ABC 的面积为S ,且20S AB AC ⋅=. (1)求角A 的大小;(2)若||3BC =,且角B 不是最小角,求S 的取值范围.18. (本小题满分16分)如图是一块镀锌铁皮的边角料ABCD ,其中,,AB CD DA 都是线段,曲线段BC 是抛物线的一部分,且点B 是该抛物线的顶点,BA 所在直线是该抛物线的对称轴. 经测量,AB =2米,3AD =米,A B A D ⊥,点C 到,AD AB 的距离,CH CR 的长均为1米.现要用这块边角料裁一个矩形AEFG (其中点F 在曲线段BC 或线段CD 上,点E 在线段AD 上,点G 在线段AB 上). 设BG 的长为x 米,矩形AEFG 的面积为S 平方米. (1)将S 表示为x 的函数;(2)当x 为多少米时,S 取得最大值,最大值是多少?19. (本小题满分16分)设数列{}n a 的前n 项和为n S ,且21132(2,)n n n S S S n n n N *-+++=+≥∈. (1)若{}n a 是等差数列,求{}n a 的通项公式; (2)若11a =.① 当21a =时,试求100S ;② 若数列{}n a 为递增数列,且3225k S =,试求满足条件的所有正整数k 的值.C D EFG R第18题H20. (本小题满分16分)已知函数()x f x e =,()g x x m =-,m R ∈.(1)若曲线()y f x =与直线()y g x =相切,求实数m 的值; (2)记()()()h x f x g x =⋅,求()h x 在[]01,上的最大值; (3)当0m =时,试比较()2f x e -与()g x 的大小.盐城市2015届高三年级第一学期期中考试数学参考答案一、填空题:本大题共14小题,每小题5分,计70分.1. {}0,1,1-2. 若a b ≤, 则22a b≤ 3. π 4. 12-5. 276. 3π7. 28. 9. 12 10. 11. 15 12. [4,0]- 13. 13 14. 1(,1]e二、解答题:本大题共6小题,计90分.解答应写出必要的文字说明,证明过程或演算步骤,请把答案写在答题纸的指定区域内.15.解:(1)(0)f =∴sin 0cos0a +a = ……………2分∴()s i n3c o s 2s i n ()3f x x x x πωωω==+, ……………4分 ()f x 图象的相邻两条对称轴间的距离为π,∴22||T ππω==,∴||1ω=,又0ω>,所以1ω=. ……………6分 (2)()1f α=,∴1sin()32πα+=, ……………8分(,)22ππα∈-,∴5(,)366πππα+∈-,∴36ππα+=,即6πα=-, ……………10分∴57cos()cos1212ππα-=,又7cos cos()1234πππ=+,∴5cos()cos cos sin sin 123434πππππα-=⋅-⋅=. …………14分 16.解:(1)由2430x x -+->,解得13x <<,所以(1,3)A =, …………2分又函数21y x =+在区间(0,)m 上单调递减,所以2(,2)1y m ∈+,即2(,2)1B m =+, …………4分 当2m =时,2(,2)3B =,所以(1,2)A B =. …………6分(2)首先要求0m >, …………8分而“x A ∈”是“x B ∈”的必要不充分条件,所以B A Ø,即2(,2)(1,3)1m +?, …………10分 从而211m ≥+, …………12分 解得01m <≤. …………14分 17.解:(1)设ABC ∆中角,,A B C 所对的边分别为,,a b c,由20S AB AC +⋅=,得12sin cos 02bc A A ⨯+=,即sin 0A A +=, …………2分所以tan A =, …………4分又(0,)A π∈,所以23A π=. …………6分(23BC =,所以a =,sin sin b cB C ==, 所以2sin ,2sin b B c C ==, …………8分从而1sin sin sin()23S bc A B C B B π===- …………10分11cos 2sin )2))246B B B B B B π-=--=+-, …………12分又5(,),2(,)63626B B πππππ∈+∈,所以S ∈. …………14分(说明:用余弦定理处理的,仿此给分) 18.解:(1)以点B 为坐标原点,BA 所在直线为x 轴,建立平面直角坐标系. …………2分设曲线段BC 所在抛物线的方程为22(0)y px p =>,将点(1,1)C 代入,得21p =, 即曲线段BC的方程为1)y x =≤≤. …………4分又由点(1,1),(2,3)C D 得线段的方程为21(12)y x x =-≤≤. …………6分 而2GA x =-,所以),01,(21)(2),1 2.x x S x x x ⎧-<≤⎪=⎨--<<⎪⎩ …………8分(2)①当01x <≤时,因为1322)2S x x x =-=-,所以112232S xx -'=-=,由0S '=,得23x =, …………10分 当2(0,)3x ∈时,0S '>,所以S 递增;当2(,1)3x ∈时,0S '<,所以S 递减,所以当23x =时,max S =; …………12分 ②当12x <<时,因为259(21)(2)2()48S x x x =--=--+,所以当54x =时,max 98S =; …………14分综上,因为98>54x =米时,max 98S =平方米. …………16分(说明:本题也可以按其它方式建系,如以点A 为坐标原点,AD 所在直线为x 轴,建立平面直角坐标系,仿此给分)19.解:(1)由等差数列求和公式211(1)()222n n n d dS na d n a n -=+=+-, 11n n n S S S -+∴++222111(1)()(1)()(1)()(1)222222d d d d d dn a n n a n n a n =-+--++-+++-+21(32)3(),22d dn a n =++- ……………2分 ∴222113(32)3()3()322222d d d dn a n n a n d n ++-=+-+=+, ∴133,,222d da d =-=,解得12,1d a ==,∴ 21n a n =-; ……………4分 (说明:也可以设2n S an bn =+;或令2,3n n ==,先求出首项1a 与公差d ) (2)由21132(2)n n n S S S n n -+++=+≥,得2123(1)2n n n S S S n ++++=++ , ……………6分∴1263(2)n n n a a a n n ++++=+≥, ∴10012345679899100()()()S a a a a a a a a a a =++++++++++11(6236983)33100002=+⋅++⋅+⋅=. ………………8分(说明:用21a =,利用分组方法求和,类似给分.)(3)设2a x =,由21132(2)n n n S S S n n -+++=+≥,得12314S S S ++=与23429S S S ++=,∴1233214a a a ++=,∴3112a x =-,∴123433229a a a a +++=,∴44a x =+, ……………10分又2123(1)2n n n S S S n ++++=++,∴1263(2)n n n a a a n n ++++=+≥,∴1163(3)n n n a a a n n -+++=-≥, 相减得216(3)n n a a n +--=≥, ∴5266a a x =+=+,数列{}n a 为递增数列,∴12345a a a a a <<<<,解得71133x <<, ……………12分由312345678932313()()()k k k k S a a a a a a a a a a a a --=++++++++++++,∴3112(6436(32)3)(1)2k S x k k =-+⋅++-+-,∴2393225k S k x =-+=, ……………14分∴27119222(,)33x k =-∈,解得5k =. ……………16分20.解:(1)设曲线()x f x e =与()g x x m =-相切于点()00,P x y ,由()xf x e '=,知0=1x e ,解得00x =, ……………2分 又可求得点P 为()01,,所以代入()g x x m =-,得1m =-. ……………4分 (2)因为()()xh x x m e =-,所以()()()(1),[0,1]xxxh x e x m e x m e x '=+-=--∈.①当10m -≤,即1m ≤时,()0h x '≥,此时()h x 在[]01,上单调递增,所以()()()max 11h x h m e ==-; ……………6分 ②当011m <-<即12m <<时,当()01x m ∈-,时,()0h x '<,()h x 单调递减, 当()1,1x m ∈-时,()0h x '>,()h x 单调递增,()0h m =-,()()11h m e =-.(i)当()1m m e -≥-,即21em e ≤<-时,()()max 0h x h m ==-; (ii) 当()1m m e -<-,即11em e <<-时,()()()max 11h x h m e ==-; ……………8分③当11m -≥,即2m ≥时,()0h x '≤,此时()h x 在[]01,上单调递减,所以()()min 0h x h m ==-. 综上,当1e m e <-时,()()max 1h x m e =-;当1em e ≥-时,()max h x m =-. ……………10分(3)当0m =时,()22=x f x e ee --,()g x x =,①当0x ≤时,显然()()2f x eg x ->;②当0x >时,()222ln =ln x f x ex e e e ---=,()ln ln g x x =,记函数()221=ln ln x x x ex e x eϕ--=⨯-, ……………12分 则()22111=e x x x e e x xϕ-'⨯-=-,可知()x ϕ'在()0,+∞上单调递增,又由()10ϕ'<,()20ϕ'>知,()x ϕ'在()0,+∞上有唯一实根0x ,且012x <<,则()02001=0x x e x ϕ-'-=,即0201x e x -=(*), 当()00,x x ∈时,()0x ϕ'<,()x ϕ单调递减;当()0+x x ∈∞,时,()0x ϕ'>,()x ϕ单调递增, 所以()()0200=ln x x x e x ϕϕ-≥-, ……………14分结合(*)式021x ex -=,知002ln x x -=-, 所以()()()22000000001211=2=0x x x x x x x x x ϕϕ--+≥+-=>,则()2=ln 0x x e x ϕ-->, 即2ln x ex ->,所以2x ee x ->.综上,()()2f x eg x ->. ……………16分(说明:若学生找出两个函数()2f x y e -=与()y g x =图象的一条分隔线,如1y x =-,然后去证()21f x e x -≥-与()1x g x -≥,且取等号的条件不一致,同样给分)。

浙江省新昌中学2015届高三上学期期中考试语文试题

浙江省新昌中学2015届高三上学期期中考试语文试题

浙江省新昌中学2015届高三上学期期中考试语文试题高三2011-11-22 22:05浙江省新昌中学2015届高三上学期期中考试语文试题一.语言文字运用(共36分,其中选择题每小题3分)1.下列词语中,各对加点字的读音都不相同的一项是( )A.复辟/媲美翩跹/乔迁款识/残羹冷炙B.缔造/真谛烙印/络绎贫瘠/声名狼藉C.绯闻/斐然空旷/粗犷筵席/偃旗息鼓D.伺机/后嗣揶揄/龋齿倜傥/痛哭流涕2.下列各句中,没有错别字的一项是( )A.我将怀着敬畏之心,仰望壮丽的署光全景,与此同时,太阳唤醒了沉睡的大地。

B.妄自菲薄是一条毒蛇,它在不知不觉中啮噬着我们的心灵,吮吸着滋润生命的血液,同时注入厌世和绝望的毒液。

C.秋风忽至,再有一场早霜,落叶或飘摇歌舞或坦然安卧,满园中播散着熨贴而微苦的味道。

D.文化传统的变化无论如何总是缓慢的、渐进的,不会一蹴而就,既使在社会急剧变幻的革命时期也是如此。

3.依次填入下列横线处的词语,最恰当的一组是( )①总有无数平凡的人,以诚实的品格着社会的良知。

②艺术真实的使命可以暂不现实生活的法则,因为虚构是小说家的特权。

③悲悯情怀了贫富与阶级、国家与民族的界限,使人们关注那些苦难中的同类。

A.守护理会超越 B.守护理解超脱C.守候理会超脱 D.守候理解超越4.下列各句中,加点的词语运用错误的一项是( )A.纵观当下国内众多谍战题材作品,信仰被抽象成一个特征,信仰什么、为什么信仰都不再重要,浓墨重彩渲染的是由执著信仰而产生的力量。

B.形形色色的“赠品经济”让商家绞尽了脑汁:虽说同是变相让利,可戏法人人会变,[来源:Z|xx|]各有巧妙不同,只有棋高一着,才能在竞争中占得先机。

C.民众对司法的一些负面情绪,固然跟司法腐败有莫大关系,但确实也有部分无良媒体,从非专业角度对案件进行了情绪化炒作,导致负面消息甚嚣尘上。

D.风骨不仅是文艺批评的一个标准,也代表着文艺作品的品质,但遗憾的是,近些年来,风骨不再成为多数作家的自觉追求,风骨之说颇有些大音希声。

浙江省温州市第六十一中学2015届高三第一学期期中考试英语试题

浙江省温州市第六十一中学2015届高三第一学期期中考试英语试题

浙江省温州市第六十一中学2015届高三第一学期期中考试英语试题第一部分:英语知识应用(共两节,满分30分)第一节:单项填空(共20小题,每小题0.5分,满分10分)1. ---I'm sorry I made a mistake!--- _____. Nobody is perfect.A. Take your timeB. You’re rightC. Whatever you sayD. Take it easy2. The Professor considers ____ no good _____ without understanding.A. it; to readB. it; readingC. that; to readD. that; reading3. The new survey shows that the number of students ________ computer games has been increasing in recent years.A.devoted to B.related to C.connected to D.addicted to4. Students in Senior 3 are under _____ great stress, because no one will take ____ risk of failng in the college entrance examinations.A. a; theB. the; /C. a; aD. /; the5. I haven't seen ________ Mary since I came here.A.as lovely a girl as B.so a lovely girl asC.girl as lovely as D.as a lovely girl as6. He’s one of those early birds. It’s __________ of him to get up early.A. flexibleB. humorousC. rudeD. typical7. Snooker superstar Ding Junhui owes his great success to many people, his father _______.A. in turnB. in particularC. in returnD. in peace8. They had a wonderful holiday, ______ bad weather.A. because ofB. due toC. in spite ofD. on behalf of9. – I ____ to go for a walk.-- But I _____ going shopping.A. would like; feel likeB. feel like; feel likeC. feel like; would likeD. would like; would like10. Without electricity, people’s life ________ quite different today.A. would have beenB. should have beenC. would beD. could have been11. It is very hot in Chongqing this summer. ________air-conditioners have been sold since thetemperature is high.A.Large quantities of B.A large quantityC.A great deal of D. A great many of12. Having walked in the desert for several days, they felt exhausted, but they had tofind a pool before the water in the bottle ___________ .A. put outB. let outC. ran outD. used up13.Alice’s father always brings her a nice gift ________ he returns home from hisbusiness trip.A. by the timeB. all the timeC. every timeD. in the time14. ______with the size of the whole earth, the biggest ocean does not seem big at all.A. CompareB. When comparingC. ComparingD. When compared15. Unfortunately, the computer system ________ suddenly while they were searching for someinformation on the Internet.A. broke upB. broke downC. broke awayD. broke out16. I can ______ the house being untidy, but I hate it if it's not clean.A.come up with B.put up with C.turn to D.stick to17. --- What time is it?--- I have no idea. But just a minute. I ________ it for you.A. checkB. checkedC. will checkD. would check18. His laziness ________ his failure; that is to say, his failure _______ his laziness.A. resulted from; resulted inB. resulted in; resulted fromC. as a result of; as a resultD. as a result; as a result of19. --- How did you like Nick’s performance last night?--- To be honest, his singing didn’t ________ to me much.A. appealB. belongC. referD. occur20. It is required by law that a driving test _______ taken before a man gets a license.A. wasB. beC. wereD. is第二节:完形填空(共20小题;每小题1分,满分20分)Have you ever considered what it would be like if you are not able to smile? I hadn't __21__ that, up until a few months ago, when I found that I __22__ couldn't. Well, I'm exaggerating (夸张) a little bit ... I __23__ smile, but only with one side of my face!I went to the__24_, and was diagnosed(诊断) with Bell's Palsy—a disease of the muscles on one side of the face. As you could __25__,this was quite a shock to me,and made me very __26__.Although this was a major bomb that was dropped on my life, my story is not about how __27__ life is, but about how I face the sudden __28__ falling on me.Anyway, __29__ is a part of everyday life for me. “Losing” half my face temporarily caused me to think “What is a smile?”According to the dictionary,a smile is a __30__ expression for pleasure, characterized(特征是) by the turning up of the corners of the mouth,__31__ what about the cause? What is __32__ the smile that causes us to show this expression?After __33__ about this for a while, I came up with the __34__ that a smile is not only characterized by the upturning of the corners of the mouth, but also by what a person does, says and thinks. This gave me hope, as I __35__ that smiling is not just an outward expression, but an inward __36__.With this in mind, I set about __37__ how to smile with my life through my __38__,not just with my face.__39__,sometimes I send my friends Smile Cards with a chocolate bar or bookmark, letting them __40__ a true smile.21.A. thought about B.stuck to C.fought for D.dreamed of22.A. certainly B.actually C.hardly D.obviously23.A. needed B.would C.should D.could24.A. doctor B. nursery house C.government D.bookstore25.A. ask B.behave C.plan D.imagine26.A. excited B.puzzled C.upset D.ashamed27.A. hard B.boring C.short D.interesting28.A. fortune B.challenge C.duty D.job29.A. sleeping B.working C.smiling D. eating30.A. facial B.body C.mental D.happy31.A. because B.so C.but D.or32.A. behind B.against C.before D.towards33.A. working B.thinking C.reading D.speaking34.A. agreement B.conclusion C.announcement D.condition35.A. doubted B.hoped C.insisted D.realized36.A. decoration B.attitude C.pattern D.attraction37.A. learning B.suggesting C.consulting D.predicting38.A. speeches B.promises C.actions D.opinions39.A. In fact B.For example C.As a result D.By the way 40.A. discover B.remove C.convey D.experience第二部分阅读理解(第一节20小题,第二节5小题,满分50分)第一节:阅读下列材料,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题纸上将该选项标号涂黑。

职业高二上学期期中考试英语试题2015

职业高二上学期期中考试英语试题2015

高二职业班英语期中考试试题班级:姓名:一.语音知识:从ABCD四个选项中找出其划线部分与所给单词划线部分读音相同的选项(共5分,每小题1分)1.death A.areas B.disease C.health D.breathe2.within A.three B.either C.thirty D.health3.iced A.offered B.allowed C.tasted D.washed4.learn A.dear B.wear C.heard D.hear5.great A.creat B.break C.idea D.deal二.完形填空(共10题,20分)Beijing will ban smoking in most __6__places starting from May 1 ---- a big step toward tobacco control in a nation of 350 million __7__. The cap ital will be the first to ban smoking in all restaurants, offices and schools, b ars, Internet cafes, hotels, offices, holiday resortsand all 8__ areas of hospit als. "Hotels must also have rooms for non-smokers," said Cui Xiaobo, a to bacco control expert who helped draft the new rule. But it has not yet been __9__how to deal with smokers __10__ the new rule. "There are proposals to fine individuals up to 200 yuan, but it remains to be discussed" said Cui . For Chinese, smoking is part of a meal, said Zhao Yingqi, __11__ of Jing weilou Restaurant in the city's downtown. His __12__ has about 20 non-smoking tables compared to the 400 plus tables with glass or steel ashtrays on __13__. "It's not a bad __14__to have non-smoking restaurants," said a 40-year-old smoker surnamed Xie who was dining at the restaurant. The m ajority of diners __15__the new rule.6.A.public B.personal C.open mon7.A.smoking B.smokes C.smokers D.smoker8.A.indoor B.outdoor C.outdoors D.indoors9.A.done B.konwn C.made D.decided10.A.breaking B.doing C.making D.keeping11.A.customer B.manager C.except D.host12.A.room B.restaurant C.hotel D.hospital13.A.no B.both C.every D.each14.A.things B.idea C.restaurant D.office15.A.support B.disagree C.for D.against三阅读理解(每题2分,共30分)ARobinson was born in a poor family. At seven, he had to pick coal in a dese rted mine near his home, and then he sold what he had picked and earned a few coins to help his parentHe had no schooling, for being so poor, how c ould they afford school fees? When he was fifteen, he worked as a servant in a school. Seeing other children studying in the classroom, he felt sorry for himself. In the day time, after he finished sweeping and cleaning, he cou ld stand by the window outside the classroom trying to catch what the teac her said. At night, he tried his best to remember what he learned during the day. He worked so hard at the lesson that he sometimes had only three or f our hours' sleep. The more he learned, the greater interest he had. A maths t eacher discovered him and came to like this diligent (勤奋的)boy and allowed him to sit at the back of the class. In one exam, he ca me first in grade in the whole school. He would have been given the schola rship if he had been a regular student of the school. Robinson struggled thr ough six long years with his study of maths and wrote several articles whic h caught the attention of some university professors. They appreciated (欣赏) his diligence as well as his cleverness. To give him the better chance, t hey hired him as a librarian (图书管理员) and offered him free guidance. Robinson was filled with joy, for he fel t that before him there was a broad road leading to success.、16.When he was very small, Robinson didn't go to school because _____ .A. there was no school thereB. his family was poorC. the school didn't wa nt himD. he didn't like school17. When he was a teenager, Robinson _____.A. went to schoolB. left schoolC. lived in a schoolD. worked in a schoo18. In the second paragraph of the passage, the word “catch” means ____ _____.A. listen toB. rememberC. controlD. hear and understand19. At the end of the story, Robinson was sure that he ____ .A. would no longer worry about his future lifeB. would work in the librar y for a long timeC. would become successful in businessD. would beco me successful in learning20. The best title for the passage is _____.A. Diligence Makes a SuccessB. Cleverness Makes a SuccessC. A Boy' s Early lifeD. A Boy's Early EducationBEating in space is different from eating on earth. The food that astronauts c arry with them does not look like the food you eat. Some food is carried i n closed bags. It is cooked and frozen befo r e the astronauts get it. All th e water is removed from the food. In the spaceship, the astronaut puts the w ater into the food bag. He “shoots” hot or cold water into the food bag wit h a special gun. He eats the food through a small hole in the bag. Other foo ds come in bite sizes. The astronaut puts a whole piece in his mouth at on ce. There can be no crumbs(碎屑). Crumbs would float around the spaceship and ge t in the way. Meat a nd cake often come in bite-sized pieces. Astronauts cannot drink water fr om open cups. The water would float in drops in the a i r.T he water is put in the special gun. The astronaut shoots the water into his mouth. Eating in spa ce is not easy. Astronauts must learn to eat this way.21. Some space food is carried in ___.A. closed bagsB. opened bagsC. closed boxesD. opened boxes22. It is implied(暗示) in this passage that ___.A. you get much hungrier in space than you do on earthB. you cannot have water to drink in spaceC. astronauts must learn many new and different thi ngsD. you cannot eat anything in a spaceship23. Why can’t astronauts drink water from open cups?A. The water would float out of the open cups.B. The water would spill all over their food.C. Crumbs would float in the cups.D. The cups would float in the air.24. The main idea of the whole story is that ___.A. there is more food and water in space than on earthB. eating and drinkin g in space is a special problemC. astronauts can never eat or drink in a spa ceshipD. some food is carried in closed bags25. Which of the following does the story lead you to believe?A. food for astronauts must be made in a special way.B. All meat on eart h comes in bite-sized pieces.C. Astronauts will only eat cakes made from crumbs.D. Astronauts have to go hungry in a spaceshipCAt the other end of Africa is a desert. Y e t p eople who live there managed to make a home and live in agreement with the land. The 4 people are the Bu shmen, whose home is the Kalahari Desert of South Africa. They make thei r living through their knowledge of a difficult and dangerous home. Duri ng the few days that it rains in the Kalahari, the Bush m en have no troubl e finding food. All kinks of plants and flowers grow in the desert. Hungry an imals from surrounding areas move into the desert. Hunting is easy. They canfollow animal tracks (踪迹) for days. Then they shoot their game (物) with poisoned arrows (毒箭). If the animal is only wounded, they will run after it for days under the hot sun. A Bushman can also find water where no one else can. Somet imes he will dig through the sand, looking for the water seeping (渗出) in after the rains where he knows. Then he puts a hollow reed (空芦苇)into the ground and sucks the water up through the reed, after that he will draw it out of sand. And then he will hide a kind of egg shell in the sand and remember where he has hidden it. If another Bushman f inds the shell, he will not use it---even if he is dying of thirst. He knows that another depends on the water being there. Nearly everything the Bushm en use comes from the desert. But it takes knowledge and skill to put every thing to use. Only with this knowledge and skill can the Bushmen live in such a harsh (的)homeland.26. What is the main idea of the paragraph? A. There is a desert in South Afri ca. B. Bushmen live a hard life in the desert. C. Bushmen live a life by their own way. D. Bushmen don’t know how to live in the desert.27. Why do Bushmen hunt easily after the rains? A. Because the animals d on’t move any more.B. Because the animals around the area come here to eat the plants in the desert after the rains. C. Because when it rains, the ani mals hide in some places. D. Because many animals are very weak after the rains.28. How can a Bushman find water in the desert after the rains? A. They dig through the sand where the water will flow slowly and then put a reed in the sand, sucking the water up. B. After the rains he can find a small river. C. There are many holes in the sand, so he can easily find it. D. He will dig a well after the rains.29. Why does a Bu s h man hide the egg s h e l l i n t h e sand after he f inds water? A. Because he wants to have a bird. B. Because the Bushmen use the shell to gather and store some water in the sand. C. Because there is no water there. D. Because he leaves it to others.30. The best title of this passage is “____”. A. The life in the desert B. Ho w to find water and when to huntC. How Bushmen live in the desert D. Th e Kalahari Desert of South Africa四从B栏中为A栏找一个同义伙伴。

2015年秋季学期AE期中考试试题

2015年秋季学期AE期中考试试题

2015年秋季学期《After Effects CS4案例教程》期中考试试题14计算机班姓名总分一、选择题(每道题只有一个正确的答案,请把答案写在下面相应的表格内,每题2分,共40分)1.创建合成的组合键是?()A.Ctrl+N B. Ctrl+O C. Ctrl+I D. Ctrl+A2.Composition Settings(合成设置)界面中,哪一项设置可锁定画面的宽高比?()A. Pixel Aspect RateB. ResoLutionC. Lock Aspect Ratio to 4:3(1.33)D. Frame Rate3.输出模块中,哪项设置决定输出文件的扩展名?()A. FormatB. Post-Render ActionC. Format OptionsD. Stretch4. PAL制影片的帧速率是?()A. 24帧/秒B. 25帧/秒C. 29.97帧/秒D. 30帧/秒5.8bit位深度的含义是?()A. 每个通道使用2的4次方量化B. 每个通道使用2的8次方量化C. 每个通道使用8的2次方量化D. 每个通道使用4的2次方量化6. 关于视频制式的使用,下列描述那些是正确的?()A. 美国,加拿大采用SECAM制式B. 日本采用PAL制式C. 欧洲采用NTSC制式D. 中国采用PAL制式7. After Effects中同时能有几个工程(Project)处于开启状态()A. 有2个B. 只能有1个C. 可以自己设定D. 只要有足够的空间,不限定项目开启的数目8. After Effects属于下列哪种工作方式的合成软件?()。

A. 使用流程图节点进行工作B. 面向层进行工作C. 使用轨道进行工作D. 综合上面所有的工作方式9. After Effects使用的时间编码是?()。

A. SMPTEB. Drop FrameC. NTSCD. PAL 10. 可以带有Alpha通道色彩设定是?()A. 8 bit色彩深度B. 16 bit色彩深度C. 24 bit色彩深度D. 32 bit色彩深度11.After Effects 对合成进行预览使用小键盘的哪个键?()A. 0B. 1C. 2D. 312.视频编辑中,最小单位是()。

北师大实验中学2015-2016学年高一上学期期中考试物理试题

北师大实验中学2015-2016学年高一上学期期中考试物理试题

第I卷
一、 本题共 15 小题, 在每小题给出的四个选项中, 只有一项是符合题意的. (每 小题 3 分,共 45 分) 1.如图所示,某飞行员跳伞后飞机上的甲人和地面上的乙 人观察跳伞飞行员的运动后,引发了对跳伞飞行员运动情况 的争论,下列说法正确的是( ) A.甲、乙两人的说法中必有一个是错误的 B.他们的争论是由于选择的参考系不同而引起的 C.研究物体运动时不一定要选择参考系 D.参考系的选择只能是相对于地面静止的物体 2.钓鱼岛自古就是我国固有的领土,它到温州的直线距离为 356km。若某天 我国海监船为维护我国对钓鱼岛的主权,早上 8:00 从温州出发去钓鱼岛巡航, 航行了 480km,历时 8 时 20 分到达钓鱼岛。下列说法中正确的是( A.8:00 是指时间间隔 B.8 时 20 分是指时刻 C.该海监船位移大小为 480km,路程为 356km D. 尽管海监船比较大,但还可以将它看成质点
A.发令枪一响,乌龟先跑出去,兔子过一会儿才跑出去 B.乌龟一直匀加速前进 C.兔子先加速前进,中途匀速前进,最后又加速前进 D.除起点和终点外,在赛跑的途中乌龟和兔子共相遇两次 17.关于物体的速度和加速度,下列说法中正确的是 ( )
A.火箭点火升空的瞬间,火箭的速度和加速度可能都为零 B.火炬手登上珠峰顶时,所在位置的重力加速度要小于 9.8 m/s2 C.高速行驶的磁悬浮列车的加速度有可能为零 D.轿车速度变为 100 km/h 时紧急刹车,这里轿车的速度 100 km/h 是指 平均速度
t/s 0.6
0.10.2Fra bibliotek0.30.4
0.5
7
在打 A 计数点时,小车的速度 vA=__________m/s. 四、计算题(共 20 分) 。 22、飞机着陆后以 6 m/s2 的加速度做匀减速直线运动,其着陆速度为 60 m/s, 求: (1)它着陆后 12 s 内滑行的位移大小; (2)整个减速过程的平均速度大小(用两种方法求解); (3)静止前 4 s 内飞机滑行的位移大小。 (4)飞机着陆后第 4s 内的位移大小。

2014-2015年秋季第一学期新人教版六年级上册数学期中考试试卷

2014-2015年秋季第一学期新人教版六年级上册数学期中考试试卷

1六年级上册数学期中考前预测试卷(考试时间90分钟,满分100分)姓名: 班别: 学号 成绩:一.填空题(本大题共10小题,每小题2分,共20分)1.60的14 是( ),( )的14 是120。

比64吨多38 是( )吨。

2.甲与乙的比是3∶5,那么甲是乙的( )( ) ,乙是甲乙两数和的( )( )二年级男生占女生的87 ,那么男生比女生多( )( )3. 243时=( )时( )分 59公顷=( )公顷( )平方米.4.一桶油重32千克,用去它的43,还剩下( )千克。

如果再用去43千克,还剩( )千克.5.在方格上用数对(6,3)表示小明所站的位置,那么小明是在第6( ),第3( )。

54 的倒数是( ) 19 的倒数是( )6. 直径为10分米的半圆,周长是( )分米。

在一个周长为80厘米的正方形纸片内,要剪一个最大的圆,这个圆周长是( )厘米。

7. ( ):30=53=15÷( )=) (27=( )填小数8. ( )× 67 = 8×( )= 34 ÷( )= 16 +( )= 19.梨的 35 是苹果的千克数①上述句子中,单位“1”是( ) ②等量关系式是( )〇( )=( )10、40千克:0.4吨比值是( )。

把51:1.7化成最简整数比是( ).二、判断题。

(本大题共6小题,共6分)11. 大小两个圆,大圆周长与直径的比,等于小圆周长与直径的比. ( )12. 甲数比乙数多31吨 ,则乙数比甲数少31吨 。

( )13.比的前项和后项同时乘或除以非0的数,比值不变。

( )14.52除以一个真分数,所得的商大于52。

( ) 15 .如果A :B=4:5,那么A=4,B=5 ( )16.松树比柏树的棵数多51,那么柏树比松树少61( )三.选择题(本大题共4小题,共4分)17. 一个三角形的内角度数之比是1:3:5,则这个三角形是( )。

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2015年秋季学期《After Effects CS4案例教程》期中考试试题14计算机班姓名总分
一、选择题(每道题只有一个正确的答案,请把答案写在下面相应的表格内,每题2分,共40分)
1.创建合成的组合键是?()
A.Ctrl+N B. Ctrl+O C. Ctrl+I D. Ctrl+A
2.Composition Settings(合成设置)界面中,哪一项设置可锁定画面的宽高比?()
A. Pixel Aspect Rate
B. ResoLution
C. Lock Aspect Ratio to 4:3(1.33)
D. Frame Rate
3.输出模块中,哪项设置决定输出文件的扩展名?()
A. Format
B. Post-Render Action
C. Format Options
D. Stretch
4. PAL制影片的帧速率是?()
A. 24帧/秒
B. 25帧/秒
C. 29.97帧/秒
D. 30帧/秒
5.8bit位深度的含义是?()
A. 每个通道使用2的4次方量化
B. 每个通道使用2的8次方量化
C. 每个通道使用8的2次方量化
D. 每个通道使用4的2次方量化
6. 关于视频制式的使用,下列描述那些是正确的?()
A. 美国,加拿大采用SECAM制式
B. 日本采用PAL制式
C. 欧洲采用NTSC制式
D. 中国采用PAL制式
7. After Effects中同时能有几个工程(Project)处于开启状态()
A. 有2个
B. 只能有1个
C. 可以自己设定
D. 只要有足够的空间,不限定项目开启的数目
8. After Effects属于下列哪种工作方式的合成软件?()。

A. 使用流程图节点进行工作
B. 面向层进行工作
C. 使用轨道进行工作
D. 综合上面所有的工作方式
9. After Effects使用的时间编码是?()。

A. SMPTE
B. Drop Frame
C. NTSC
D. PAL 10. 可以带有Alpha通道色彩设定是?()
A. 8 bit色彩深度
B. 16 bit色彩深度
C. 24 bit色彩深度
D. 32 bit色彩深度
11.After Effects 对合成进行预览使用小键盘的哪个键?()
A. 0
B. 1
C. 2
D. 3
12.视频编辑中,最小单位是()。

A. 小时
B. 分钟
C. 秒
D. 帧
13.After Effects 对于帧速率下列说法正确的是()。

A. 所谓帧速率是在播放时每秒钟播放多少帧
B. 所谓帧速率是指在播放时每分钟播放多少帧
C. 所谓帧速率是指在播放时每小时播放多少帧
D.所谓帧速率是指在播放时每10秒播放多少帧
14.快速展开图层Position属性的快捷键是()
A. T
B. U
C. P
D. R
15.快速展开图层Rotation属性的快捷键是()
A. T
B. Y
C. P
D. R
16.创建固态层的组合键是()
A.Ctrl+Y
B. Ctrl+A
C. Ctrl+B
D. Ctrl+F
17.使用矩形遮罩工具绘制mask时()
A. 按住Shift键拖动句柄,可以产生正方形遮罩
B. 按住Ctrl键拖动句柄,可以产生正方形遮罩
C. 按住Alt键拖动句柄,可以产生正方形遮罩
D. 按住Ctrl + Alt键拖动句柄,可以产生正方形遮罩
18.可以在下列哪个窗口中通过调整参数精确控制对象?()
A. 项目窗口
B. 合成图像窗口
C. 时间线窗口
D. 信息窗口
19.After Effects 原文件格式是()
A. *.psd
B. *.ppj
C. *.aep
D. *.ai
20.使运动的层产生真实的运动模糊现象,下列哪种方法是正确的?()
A. 打开运动模糊开关
B. 应用Each特效
C. 应用Direction Blur特效
D. 应用Motion Blur特效
二、填空题(每空1分,共10分)
1.After Effects CS4是Adobe公司的一款拥有广泛用户群的_____________________。

2.__________是After Effects插件中的一种,由Trapcode公司推出,该插件可以用来制作放射性光线。

3.世界上主要使用的电视制式有___________、 __________、__________三种。

4.在After Effects中,滤镜也称作__________。

5.After Effects中动画有___________、 __________、__________三种。

6. 创建一个调节层的组合键是______________。

三、判断题。

(每题1分,共10分)
1.PAL制式的标准分辨率是720×576px()
2.高清晰度电视就是清晰度高的电视()
3.在Comp(合成)窗口中,可以对素材进行移动、缩放、旋转、建立遮罩等操作()
4.在Timeline(时间线)窗口中可以执行为图层添加特效、调整图层参数、设置图层叠加方式等针对图层的操作()
5.当关键帧被选中时,关键帧呈灰色,末被选中时呈黄色。

()
6.导入序列文件时,只要勾选(序列)复选项,序列文件就会被一次性地导入。

()
7.使用组合键Ctrl+Alt+I,能打开导入多个文件对话框,通过该对话框能导入多个文件。

()
8.遮罩(Mask)是用于修改层Alpha通道的一个路径或者轮廓。

()
9.软件的版本固定以后,滤镜的数量就固定了。

()
10.动画的制作不一定使用关键帧。

()
四、简答题(每题5分,共25分)
1.After Effects可应用在哪些领域?
2.简述After Effects CS4的基本操作流程。

3.After Effects CS4中支持的视频文件格式有哪几种?
4.什么是合成?怎样创建合成?
5. 什么是固态层?怎样创建固态层?怎样设置固态层的颜色?
五、操作题。

(共15分)
要求制作一个图片由小到大逐渐放大的动画,动画的持续时间为6秒,输出成avi 格式。

(请写出操作步骤)。

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