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C清远盛兴中英文学校中学部2014—2015学年度第一学期十月月考高三年级数学试题（文科）考试时间：120分钟 满分：150分一、选择题：本大题共10小题，每小题5分，共50分，在每小题给出的四个选项中，只有一项是符合题目要求的．1．设}4,2{},5,1{},5,4,3,2,1{===B A U ，则=A C B U （ ）A. }4,3,2{B. }2{C. }4,2{D. }5,4,3,1{2．函数()()1ln 1f x x =+ ）A.[)(]2,00,2-B.()(]1,00,2-C.[]2,2-D.(]1,2-3．若θ是第二象限角，则下列选项中一定为正值的是( )A ．sin θ2B ．cos θ2C ．tan θ2D ．cos 2θ4．下列函数中，既是偶函数，又在()+∞,0上单调递增的函数是（ ）AB.C. D. x y sin =5．在△ABC 中，a ，b ，c 分别是角A ，B ，C 所对的边，则“A <B ”是“cos 2A >cos 2B ”的( )A ．充分不必要条件B ．必要不充分条件C ．充要条件D ．既不充分也不必要条件6．设函数⎩⎨⎧=为无理数为有理数，x ，x x D 01)(，关于函数)(x D 有以下四个结论：①)(x D 值域为[0，1]；②)(x D 是周期函数；③)(x D 是单调函数；④)(x D 是偶函数；其中正确的结论个数为（ ）A ．0B ．1C ．2D ．37．已知函数f (x )＝a x＋x －b 的零点x 0∈(n ，n ＋1)(n ∈Z )，其中常数a ，b 满足2a＝3,3b＝2，则n的值为( )A ．2B ．－2C ．1D ．－18. 如图,修建一条公路需要一段环湖弯曲路段与两条直道平滑连接(相切).已知环湖弯曲路段为某三次函数图象的一部分,则该函数的解析式为( )A. 321122x x y x --=B. 3211223x x y x =+- C. 314y x x =- D. 3211422x x y x =+-9．已知()21sin ,42f x x x π⎛⎫=++ ⎪⎝⎭()f x '为()f x 的导函数，则()f x '的图像是（ ）10．如果函数()f x 满足：对定义域中的任意三个数,,a b c ，都有(),(),()f a f b f c 是一个三角形三边的长，则称()f x 为“保三角形函数”.在下列函数：①||y x =;②2x y =;③1(12)y x x x=+≤≤;④32432(01)y x x x =-+≤≤中，“保三角形函数”的个数是（ ）A ．1B ．2C ．3D ．4二、填空题：本大题共4小题，每小题5分，共20分，其中14～15题是选做题，考生只需选做其中一题，两题全答的，只以第14小题计分．11．2()()f x x x c =-在1x =处有极小值，则实数c 为 . 12．已知1cos 7α=，13cos()14αβ-=，且π02βα<<<，则cos β= ． 13．函数f(x)＝tan ωx(ω＞0)的图象的相邻两支截直线y ＝π4所得线段长为π4，则f ⎝⎛⎭⎫π4＝________.14. （坐标系与参数方程选做题）在极坐标系中,圆θρsin 4=的圆心到直线)(3R ∈=θπθ 的距离是 .15. （几何证明选讲选做题）如图,AB 是圆O 的直径,点C 在圆O 上,延长BC 到D 使CD BC =,过C 作圆O 的切线交AD 于E .若8=AB ,4=DC 则DE =_________.三、解答题：本大题共6小题，共80分，解答应写出文字说明、证明过程或演算步骤．16 . （本小题满分12分）已知函数2()cos 2cos 1()f x x x x x R =+-∈（1）求函数()f x 的最小正周期；（6分）（2）若∀x ∈⎣⎡⎦⎤0，π2，都有f (x )－c ≤0，求实数c 的取值范围．（6分）17. （本小题满分12分）某学校为调查高一新生上学路程所需要的时间（单位：分钟），从高一年级新生中随机抽取100名新生按上学所需时间分组：第1组(0,10]，第2组(10,20]，第3组(20,30]，第4组(30,40]，第5组(40,50]，得到的频率分布直方图如图所示. （1）根据图中数据求a 的值（2）若从第3，4，5组中用分层抽样的方法抽取6名新生参与交通安全问卷调查，应从第3，4，5组各抽取多少名新生？（3）在（Ⅱ）的条件下，该校决定从这6名新生中随机抽取2名新生参加交通安全宣传活动，求第4组至少有一名志愿者被抽中的概率.18. （本小题满分14分）已知函数f (x )＝ax 3＋bx ＋c 在点x ＝2处取得极值c －16.(1)求a ，b 的值；(2)若f (x )有极大值28，求f (x )在[－3,3]上的最小值19．（本小题满分14分）已知函数f (x )＝A si n(ωx ＋φ)⎝⎛⎭⎫A ＞0，ω＞0，－π2＜φ＜π2一个周期的图像如图所示．(1)求函数f (x )的表达式；(2)若f (α)＋f ⎝⎛⎭⎫α－π3＝2425，且α为△ABC 的一个内角，求sin α＋cos α的值．20．（本小题满分14分）已知公差大于零的等差数列{a n }的前n 项和为S n ，且满足：a 2·a 4＝65，a 1＋a 5＝18.(1)若1<i <21，a 1，a i ，a 21是某等比数列的连续三项，求i 的值；(2)设b n ＝n(2n ＋1)S n，是否存在一个最小的常数m 使得b 1＋b 2＋…＋b n <m 对于任意的正整数n均成立？若存在，求出常数m ；若不存在，请说明理由．21. （本小题满分14分）已知函数()()212ln 2,2f x x a x a x a R =-+-∈. （1）当1a =时，求函数()f x 图象在点()()1,1f 处的切线方程；（2）当0a <时，讨论函数()f x 的单调性；（3）是否存在实数a ，对任意的()()()21121221,0,f x f x x x x x a x x -∈+∞≠>-且有恒成立？若存在，求出a 的取值范围；若不存在，说明理由.频率/组距时间 （分钟）0.0350.03a 0.010.0055040302010频率/组距 时间（分钟）清远盛兴中英文学校中学部2014—2015学年度第一学期十月月考高三年级数学试题（文科）文科数学参考答案一、选择题：本大题共10个小题；每小题5分，共50分．在每小题给出的四个选项中，有且只有一项是符合题目要求的．二、填空题：本大题共5小题，每小题5分，满分20分．其中14～15题是选做题，考生只能选做一题，两题全答的，只计算前一题得分． (一)必做题（11～13题） 11、1 12、1213、0(二)选做题（14、15题，考生只能从中选做一题） 14、1 15、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 . 解：（1）由2()cos 2cos 1f x x x x =+-，得2()cos )(2cos 1)2cos 22sin(2)6f x x x x x x x π=+-=+=+ 4分所以函数()f x 的最小正周期为π …………6分（2）因为()2sin 26f x x π⎛⎫=+ ⎪⎝⎭在区间0,6π⎡⎤⎢⎥⎣⎦上为增函数，在区间,62ππ⎡⎤⎢⎥⎣⎦上为减函数，…10分 又(0)1,2,162f f f ππ⎛⎫⎛⎫===-⎪ ⎪⎝⎭⎝⎭， 所以函数()f x 在区间0,2π⎡⎤⎢⎥⎣⎦上的最大值为2，最小值为-1 …………11分 故2f(x)c max =≥。
清远盛兴中英文学校20121 / 3清远盛兴中英文学校2012—2013学年度九年级英语寒假作业（一）一、单项选择 1. China hasarea of about 9,600,000 square kilometers.A. aB. anC. theD. /2. — will you finish doing the work? —In a few weeks. A. How long B. How far C. How soonD. How often3. We findimpossible for us to learn a foreign language well in a short time.A. thatB. thisC. oneD. it 4. —Jack, you seem to be .—Yes. It ’s 8:20 now and my train leaves in ten minutes. A. in a hurry B. in fearC. in safetyD. in silence 5. You will fall behind others you work hard. A. if B. unless C. though D. since6. —Dad, must I practise the piano today? —No, you _. You may do it tomorrow. A. needn ’t B. mustn ’t C. shouldn ’t D. can ’t7. This schoolbag is not expensive. And the price of it is the of the three. A. lowestB. biggestC. highestD. smallest 8. Cao Wenxuan ’s new book has just . Let ’s go and buy one. A. come over B. come down C. come on D. come out 9.children Simon and Jim are! They help Mrs. Li clean the house every day.A. How niceB. How braveC. What niceD. What brave10. The reporter said that the UFO east to west when he saw it. A. travels B. traveled C. was traveling D. has traveled 11. Don ’t talk to anyone about the bad news — not my mother. A. hardly B. usually C. especially D. simply 12. —Have you ever been to Singapore?—Yes. I there last year with my parents. A. goB. wentC. have beenD. was going13. —Is Tom in the next room?—Well, it ’s hard to say. But I heard him loudly when I passed by just now. A. speak B. to speak C. spoken D. speaking 14. In the past few years, thousands of films all over the world.A. have producedB. have been producedC. are producingD. are being produced 15. —Are you going to take part in the speech competition?— . It ’s too good a chance to miss.A. No problemB. Thanks a lotC. Never mindD. That ’s for sure 二、完形填空。
清远市2013—2014学年度第一学期期末教学质量检测高三理科综合试题本试卷共12页．36小题．满分300分，考试时间150分钟．注意事项：1．答卷前考生务必将自己的学校、姓名、考生号用钢笔或签字笔按要求填写在答题卷密封线内．2．答选择题时，必须将各小题选出的字母代号填写在答题卷相应位置上，填在试题上不予评改．3．非选择题必须用黑色字迹钢笔或签字笔作答，答案必须写在答题卷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；不准使用铅笔和涂改液，不按要求作答的答案无效．可能用到的相对原子质量：H-1 O-16 Ag-108 Fe-56 C-12 S-32 Na-23 Ca-40 一、单项选择题：本大题共16小题，每小题4分，共64分。
在每小题给出的四个选项中，只有一个选项符合题目要求。
请把符合题目要求选项的字母代号填写在答题卷中相应位置。
选对的得4分，错选或不选的得0分。
1．下列有关细胞中元素及化合物的叙述，正确的是A．细胞中的糖类、脂质、蛋白质、核酸共有的元素是C、H、O、NB．蛋白质的多样性是由DNA中碱基序列的多样性决定C．细胞中的激素、维生素、抗体、酶都是有机物，都能为生命活动提供能量D．细胞中激素、酶、抗体及tRNA发挥作用后都会立即失活，须不断合成2．有关细胞生命历程的叙述，错误的是A．细胞分化是基因选择性表达的结果B．已经分化的细胞仍然具有发育成完整个体的潜能C．细胞凋亡对机体的正常发育是不利的D．原癌基因和抑癌基因发生突变，会导致正常细胞的生长和分裂失控而变成癌细胞3．下列是有关DNA鉴定实验的1管与2管示意图，图示中恰当的选项是4．下列有关说法正确的是A．若致病基因在Y染色体上，发病男孩的祖父、外祖父一定发病B．胚芽鞘+单侧光→向光弯曲生长的实验，说明了生长素的横向运输C．生长素促进器官生长，脱落酸促进器官脱落，正在生长的植株中也有脱落酸D．通过改造T4溶菌酶的基因提高耐热性属于基因工程技术5．SCAR标记技术即特异性序列扩增DNA，是目前在育种应用中首选的基因分子标记技术。
清远盛兴中英文学校学费标准
清远盛兴中英文学校是一所集多种语言文化教育为一体的独立学校，对学生的学费收费也
有着明确的标准。
学校的入学费用包括报名费、班级费、教学费等，入学费为4000元，班级费为3000元，小学一至六年级教学费3000元，初中教学费4500元，高中教学费5000元，有效证件
补办费200元，家长会物品费50元。
在清远盛兴中英文学校，学费的收取是按月分季收取的，小学一至六年级学费的收取标准为月收费1000元，半季度收费1960元，季度收费3400元；中学初中和高中学费的收
取标准为月收费1200元，半季度收费2240元，季度收费4000元；夏令营费用为每周200元，如有参加任何课外辅导课程，每次收费为150元。
在清远盛兴中英文学校报名学习，虽然入学费和学费收取标准比较高，但清远盛兴中英文
学校根据家庭经济状况和学生实际情况，给予的优惠也比较大。
家庭经济状况相对贫困的
学生，可以享受政府提供的助学金；此外，学校也有延期付款，分段付费等优惠政策；并且，校园内也提供丰富多彩的日常活动，例如夏令营、晚托、综合体育、语言体验等，让
家长们学费却能大量节省。
总之，清远盛兴中英文学校是一所价格公道、政策优惠的学校，家长们可以放心地为自家孩子报名学习。
盛兴中英文学校2013-2014学年高二数学（理）第一次月考试卷一、选择题（每题5分，共40分）1、一个三角形的三个内角A 、B 、C 成等差数列，那么()tan A C +的值是 （ ）A ．． D ．不确定 2、已知等差数列{a n }的前3项依次为a －1,a+1,2a+3，则此数列的通项a n 为（ ）A.2n －3B.2n －5C.2n －1D.2n +13、已知三角形的两边长分别为4,5，它们夹角的余弦是方程2x 2＋3x －2＝0的根，则第三边长是( )A.20B.21C.22D.614、在△ABC 中，b 2－bc －2c 2＝0，a ＝6，cos A ＝78，则△ABC 的面积为( )A ．2B ．3 C.152D.15 5、已知等比数列{}n a 的公比为正数，且23952a a a ⋅=，2a ＝1，则1a ＝（ ）A ．12 B ．2C ．D ．26、已知函数()sin f x x x =，设()7a f π=，()6b f π=，()3c f π=，则,,a b c的大小关系是（ ） A ．a b c << B ．c a b <<C ．b a c <<D ．b c a <<7、已知函数2()(1cos2)sin ,f x x x x R =+∈，则()f x 是（ ）A ．最小正周期为π的奇函数B ．最小正周期为2π的奇函数 C ．最小正周期为π的偶函数 D ．最小正周期为2π的偶函数8、锐角三角形ABC 中，a 、b 、c 分别是三内角A 、B 、C 的对边，如果B ＝2A ，则 b a的 取值范围是( )A ．(－2,2)B ．(0,2)C ．(2，3)D ．(2，2) 二、填空题（每题5分共30分） 9、已知2tan()5αβ+=，1tan()44πβ-=，那么tan()4πα+的值是_____ 10、已知数列{}n a 的前n 项和29n S n n =-，则其通项n a =；若它的第k 项满足58k a <<，则k =．11、设n S 为等差数列}{n a 的前n 项和，且20101-=a ，32008201120082011=-S S ，则2a =———12、1234x y log cos()π=+的递减区间是______13 、在△ABC 中，内角A,B,C 的对边分别是a,b,c ，若22a b -，sin C B =，则A=______14、已知数列{an}的前n 项和Sn 满足log2(Sn ＋1)＝n ＋1，则数列{an}的通项公式是__ 三、简答题（共80分） 15、（13分）设｛a n ｝为等差数列，Sn 为数列｛a n ｝的前n 项和，已知S 7＝7，S 15＝75，Tn 为数列｛nS n｝的前n 项和，求Tn ． 16、（13分）已知ABC ∆三个顶点的直角坐标分别为(34)A ，，(00)B ，，(0)C c ，． （1）若AB ⊥AC ，求c 的值；（2）若5c =，求sin A ∠的值． 17、（13分）数列｛a n ｝是首项为23，公差为整数的等差数列，且第六项为正，第七项为负.(1) 求数列的公差.(2) 求前n 项和Sn 的最大值. (3) 当Sn ＞0时，求n 的最大值.18、（13分）在△ABC 中，角A ，B ，C 所对的边分别为a ，b ，c ，且满足cos A 2＝255，AB →·AC →＝3.(1)求△ABC 的面积； (2)若b ＋c ＝6，求a 的值． 19、（14分）在锐角．．ABC ∆中，角A 、B 、C 的对边分别为a 、b 、c ，且满足C b B c a cos cos )2(=-.A ．求角B 的大小及角A 的取值范围；B ．设A)2cos (3,n (sinA,1),m ==，试求n m ⋅的最大值.20、（14分）已知正项等差数列{a n }的前n 项和为Sn ，若S3＝12且2a1，a2，a3＋1成等比数列．(1)求{a n }的通项公式；(2)记bn ＝an3n，数列{bn}的前n 项和为Tn ，求Tn.盛兴中英文学校2013——2014第一次月考高二数学（理）参考答案 1——8：BABC BBDC 9.322 10. 210n -，8 11. 2008- 12. 336644[k ,k ](k Z )ππππ-+∈ 13. 03014. an ＝⎩⎪⎨⎪⎧3， n ＝12n ， n ≥215. 解：设等差数列｛a n ｝的公差为d ，则Sn=na 1＋21n （n －1）d ．∴S 7＝7，S 15＝75， ∴⎩⎨⎧=+=+,7510515,721711d a d a 即⎩⎨⎧=+=+,57,1311d a d a解得a 1＝－2，d ＝1．∴nS n ＝a 1＋21（n －1）d ＝－2＋21（n －1）．∵2111=-++n S n S n n ， ∴数列｛n S n ｝是等差数列，其首项为－2，公差为21，∴T n ＝41n 2－49n ．16. 【解析】 (1) (3,4)AB =-- (3,4)AC c =-- 由 3(3)162530AB AC c c =--+=-=，得253c =． (2) (3,4)AB =--，(2,4)AC =-． cos5AB AC A AB AC∠===sin A ∠==17. 【解】 (1) 由已知a 6=a 1+5d =23+5d ＞0,a 7=a 1+6d =23+6d ＜0,解得:－523＜d ＜－623,又d ∈Z ,∴d =－4 (2) ∵d ＜0，∴{a n }是递减数列， 又a 6＞0，a 7＜0 ∴当n =6时，Sn 取得最大值，S 6=6×23+256⨯ (－4)=78(3) Sn=23n +2)1(-n n (－4)＞0，整理得：n (50－4n )＞0 ∴0＜n ＜225,又n ∈N *, 所求n 的最大值为12.18. 解： (1)因为cos A 2＝255， ∴cos A ＝2cos 2A 2－1＝35，sin A ＝45， 又由AB →·AC →＝3，得bc cos A ＝3，∴bc ＝5， ∴S △ABC ＝12bc sin A ＝2.(2)对于bc ＝5，又b ＋c ＝6， ∴b ＝5，c ＝1或b ＝1，c ＝5， 由余弦定理得a 2＝b 2＋c 2－2bc cos A ＝20， ∴a ＝2 5. 19. 解：（1）由正弦定理得C B B C A cos sin cos )sin sin 2(=-， 所以C B C B B A sin cos cos sin cos sin 2+=, 即A C B B A sin )sin(cos sin 2=+=, 因为,0sin ≠A 所以21cos =B . 因为B 为锐角，所以60=B又因ABC ∆是锐角三角形，所以 30<A<90.(2）1sin 3sin 22cos sin 32++-=+=⋅A A A A n m =-2(817)43sin 2+-A , 因为︒<<9030A ,所以1sin 21<<A ,所以n m ⋅的最大值为817.20. 解：(1)∵S3＝12，即a1＋a2＋a3＝12，∴3a2＝12，所以a2＝4，又∵2a1，a2，a3＋1成等比数列， ∴a22＝2a1·(a3＋1)，即a22＝2(a2－d)·(a2＋d ＋1)， 解得，d ＝3或d ＝－4(舍去)，∴a1＝a2－d ＝1， 故an ＝3n －2.(2)解法1：bn ＝an 3n ＝3n －23n ＝(3n －2)·13n ，∴Tn ＝1×13＋4×132＋7×133＋…＋(3n －2)×13n，①①×13得，13Tn ＝1×132＋4×133＋7×134＋…＋(3n －5)×13n ＋(3n －2)×13n ＋1，②①－②，得23Tn ＝13＋3×132＋3×133＋3×134＋…＋3×13n －(3n －2)×13n ＋1＝13＋3×132⎝ ⎛⎭⎪⎫1－13n －11－13－(3n －2)·13n ＋1＝56－12×13n －1－(3n －2)×13n ＋1，5 4－14×13n－2－3n－22×13n＝54－6n＋54·13n．Tn＝。
清远盛兴中英文学校中学部2008—2009学年度上学期12月月考九年级语文试题考试时间：120分钟 满分：120分一、基础（28分）1、按空格要求默写古诗文（在6小题中选做5题，若6题全做则按前5题给分）（10分） （1）大漠孤烟直， 。
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宽容是对那些可宽容的人或事而言的，宽容的核心是爱。
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而不是什么都要你死我活，什么都要 ，什么都要剑拔弩张，什么都要 。
要相信，用宽容所付出的爱，在以后的日子里总有一天会得到回报。
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（2分） y īw èi （ ） sh ìɡù（ ）4 根据语境，在下面句子划线处填上恰当的成语，在备选项中选择最恰当的一项。
清远盛兴中英文学校中学部第一学期高一文科班物理复习试题1一、单项选择题：本大题共20小题，每小题2分，共40分.1．下列物理量为矢量的是( )A．速度 B．时间 C．路程 D．质量2．在物理学中，突出问题的主要方面，忽略次要因素，建立理想化的物理模型，是经常采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3．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4．某同学在“探究匀变速直线运动”的实验中，使用了频率为50 Hz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 s B．0．02 s C．0．1 s D．0．2 s5．如图物体沿三条不同的路径由A运动到B，下列关于位移的说法正确的是（）A．沿Ⅰ较大 B．沿Ⅱ较大C．沿Ⅲ较大D．一样大6．试判断下列几个速度中哪个不是瞬时速度（）A．子弹出枪口的速度是800m/sB．小球第3s末的速度是6m/sC．汽车从甲站行驶到乙站的速度40km/hD．汽车通过站牌时的速度7.2km/h7.一些关于时间与时刻的说法，以下说法中指时刻的是（）①7点30分上课②一节课上45分钟③飞机12点整起飞④汽车从南京开到上海需4个小时A.①②B.①③C.②③D.②④8．一物体做匀变速直线运动，在2s内从8m/s减少到4m/s，方向不变，则物体的加速度的大小为（）A．4m/s2 B.6m/s2 C.2m/s2 D.3m/s29．某同学从楼顶让一石块自由下落，测得石块到达地面的时间是2s，已知重力加速度g=10m/s2则楼房的高度为（）A.20mB.40mC.45mD.60m10．一根弹簧原长10cm，挂上重2N的砝码时，伸长1cm，这根弹簧挂上重8N的物体时，弹簧的形变是弹性形变，它的长度为（）A.4cmB. 44cmC.15cmD. 14cm11．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12．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13．跳高运动员从地面上跳起，下列说法错误的是（）A．地面给运动员的支持力大于运动员给地面的压力B．运动员给地面的压力大于运动员受到的重力C．地面给运动员的支持力大于运动员受到的重力D．运动员给地面的压力等于地面给运动员的支持力14.下列关于重心的说法正确的是（）A．重心是物体上最重的一点B．形状规则的物体的重心必与其几何中心重合C．直铁丝被弯曲后，重心便不在中点，但一定还在铁丝上D．重心是物体的各部分所受重力的合力的作用点15．重为400N的木箱放在水平地面，木箱与地面的最大静摩擦力85N，动摩擦因是0.2，如果分别用50N、90N的水平力推木箱，木箱受到的摩擦力分别是（）A. 50N,90NB.50N,80NC.0N,80ND.50N,85N16．将一个力分解为两个分力，合力与分力的关系是（）A．合力的大小一定等于两个分力大小之和B．合力的大小可能比每一个分力都大，也可能比每一个分力都小C．合力的大小不可能小于每一个分力的大小D．合力的大小一定比一个分力大，比另一个分力小17．如图所示，一重球用轻质绳子悬挂着，且与光滑斜面接触处于静止状态，若绳子保持竖直状态，则重球受到的力有（） A. 重力和绳子的拉力B. 重力、绳子的拉力和斜面的支持力C. 重力、斜面的弹力和斜面的静摩擦力D. 重力、绳子的拉力、斜面的支持力和下滑力18．一物体从20 m高处自由下落，不计空气阻力，g=10m/s2,则物体在空中运动的时间为A.4sB.2sC.3sD.1s19．质点从静止开始做匀加速直线运动，第1s 内的位移是1m，则第1s末的瞬时速度为（）A.1m/sB.0.5m/sC.2m/sD.2.5m/s 20．大小分别为5N和15N的两个力，同时作用在一个物体上，则合力可能是（）A.5NB.8NC.15ND.25N二、单项选择题：本大题共15小题，每小题3分，共45分.21．教练员分析运动员百米赛跑的全程录象带，测得运动员在第1s内的位移是8m，前7s跑了63m，跑到终点共用了10s，则（）A.运动员在全程内的平均速度是10m/sB.运动员在第1s末的瞬时速度是8m/sC.运动员在百米终点冲刺速度为10m/sD.运动员在第7s内的平均速度是9m/s 22．坐在小汽车前排的司机和乘客都应系上安全带，这主要是为了减轻下列哪种情况出现时，可能对人造成的伤害（）A．车速太快 B.车速太慢 C.突然启动 D.紧急刹车23．物体受到两个力的作用，大小分别是6 N和4 N，合力F大小的范围是（） A．2 N≤F≤10 N B．4 N≤F≤10 N C．6 N≤F≤10 N D．4 N≤F≤6 N24．如图9所示，利用打点计时器打出的两条纸带l 和2，分别记录了两辆小车的运动情况，纸带l 上相邻两点的问距都相等．下列判断正确的是（ ） A ．纸带1做减速直线运动 B ．纸带1做加速直线运动 C ．纸带2做变速直线运动 D ．纸带2做匀速直线运动25．向空中抛出一石子，不计空气阻力，石子在飞行过程中，下列正确的是（ ） A ．石子质量越大，加速度越大 B ．石子质量越大，加速度越小 C ．石子的加速度大于重力加速度 D ．石子的加速度等于重力加速度26．如图所示为在同一直线上运动的甲、乙两物体的V-t 图像，则由图像可知（ ） A ．它们速度方向相同，加速度方向相反 B ．它们速度方向、加速度方向均相反 C ．在t 1时刻它们相遇D ．在0—t 2时间内它们的位移大小相同，方向相反27．一位同学在探究影响落体运动的因素时，设计了如下四个小实验：实验（1）：让一张纸片和一枚硬币同时从同一高度落下实验（2）：让两张相同纸片，一张揉成一团，一张摊开，同时从同一高度落下 实验（3）：让小纸团与硬币同时从同一高度落下实验（4）：在抽真空的玻璃管中，让小纸片、纸团、硬币同时从同一高度落下, 对上述四个实验,下列说法正确的是（ ）A.（1）中硬币与纸片同时着地B.（2）中两者同时着地C.（3）中硬币先着地D.（4）中三者同时着地28．下图是做匀变速直线运动的物体从打点计时器打出的纸带。
清远盛兴中英文学校中学部2011－2012学年度第一学期 九月月考九年级物理试题 考试时间:60分钟 满分:100分 一、选择题（每题只有一个正确答案，每题3分，共30分） 1、 如图所示的电路中a 、b 是电表，闭合开关要使电灯发光，则：（ ） A ．a 、b 都是电流表 B ．a 、b 都是电压表 C ．a 是电流表，b 是电压表 D ．a 是电压表，b 是电流表 2、关于电流表和电压表的使用，下列说法错误的是（ ） A 、使用前都应检查指针是否指零 B 、若有两个量程，一般都先用大量程“试触” C 、两表都不能将两接线柱直接接到电源的两极上 D 、接入电路时，都应使电流从正接线柱流入，从负接线柱流出 3、下面的几种叙述中，哪一种是并联电路的特征（ ） A 、电路中每一处的电流都相等 B 、电路中任何一处断开都会引起断路 C 、各条支路两端的电压都相等 D 、电路上各部分电压之和等于总电压 4、把两只灯泡并联后接到电源上，闭合开关，发现灯泡L 1比L 2亮，则下列说法正确的是（ ） A 、通过L 1的电流大 B 、通过L 2的电流大 C 、L 1两端的电压比L 2大 D 、L 2两端的电压和L 1一样大 5、把一个电流表接入某电路中，用“－”和“0.6”两个接线柱，某同学读数时，看错量程，错读成1.2A ，则正确的读数是（ ）A 、0.2AB 、0.24AC 、0.32AD 、0.34A6、下列电路正确的是（ ）姓名_____________ 班级__________________ 序号__________________----------------------------------------------密------------------------------------封----------------------------------线----------------------------------------。
广东省清远盛兴中英文2014-2015学年度第一学期高三年级第一次月考数学（理）试题考试时间：120分钟 满分：150分钟一、选择题：本大题共8小题，每小题5分，共40分. 在每小题给出的四个选项中，只有一项符合题目要求.1．复数i iz +=1（其中i 为虚数单位）的虚部是 （ ） .A 21- .B i 21 .C 21 .D i 21-2．已知集合},1{R x x y y A ∈-==，}2{≥=x x B ，则下列结论正确的是（ ）.A A ∈-3 .B B ∉3 .C A B B ⋂=.D A B B ⋃= 3．某学校高一、高二、高三年级的学生人数分别为9009001200、、人，现用分层抽样的方法从该校高中三个年级的学生中抽取容量为50的样本，则应从高三年级抽取的学生人数为 ( ).A 15.B 20 .C 25 .D 30 4．已知等差数列}{n a 的前n 项和为n S ，若5418a a -=，则=8S (.A 18.B 36 .C 54 .D 72 5．在二项式52)1(xx -的展开式中，含4x 的项的系数是（ ）.A 10.B 10- .C 5- .D 206．若某几何体的三视图如右图所示，则此几何体的体积等于（ ）.A 30.B 12 .C 24 .D 4 7．已知y x ,都是区间]2,0[π内任取的一个实数，则使得x y sin ≤的取值的概率是（ ）.A 24π.B π2.C 21.D22π8．设向量),(21a a a =，),(21b b b =，定义一种向量积：),(),(),(22112121b a b a b b a a =⊗=⊗．已知向量)4,21(=，)0,6(π=，点P 在cos y x =的图象上运动，点Q 在()y f x =的图象上运动，且满足+⊗=（其中O 为坐标原点），则()y f x =在区间]3,6[ππ上的最大值是（ ）A ．4B ．2C ．D ．二、填空题（本大题共7小题，分为必做题和选做题两部分．每小题5分，满分30分） （一）必做题：第9至13题为必做题，每道试题考生都必须作答．9． 函数3log (32)y x =-的定义域是 .10．以抛物线x y 42=的焦点为顶点，顶点为中心，离心率为2的双曲线方程是 . 11．用数字1,2,3,4可以排成没有重复数字的四位偶数，共有____________个.12．设变量y x ,满足⎪⎩⎪⎨⎧≤+≤≥110y y x x ，则y x +的最大值是 .13．函数)(x f 的定义域为R ，2)1(=-f ，对任意R x ∈，2)('>x f ，则42)(+>x x f 的解集为 . （二）选做题：第14、15题为选做题，考生只选做其中一题，两题全答的，只计前一题的得分。
清远盛兴中英文学校中学部2013—2014学年度第一学期九月月考高二年级英语试题考试时间：120分钟满分：150分I：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1－15各题所给的A、B、C和D项中，选出最佳选项。
When I was 15 months old, I fell and my eye was blinded by a glass rabbit.People often asked uncomfortable questions about my eye or 1 played jokes on me. When the kids played games, I was always the “ 2 guy.”I 3 ，imagining that everyone looked down on me. Yet every time Mom noticed I was 4 , she would say to me, “Hold your head up high and face the world.” Those words have meant 5 things to me over the years.As a child, I thought Mom meant, “Be careful or you will fall down or knock into something because you are not looking.”As a teenager, I always looked down to 6 my shame, but I found that people liked me when sometimes I held my head up high.”In high school I was good at my studies and had many friends. But 7 I still felt like a freak (水怪). All I really 8 was to look like everyone else. When things got really bad, I would hurry to my Mom and she would look at me with loving eyes and say, “Hold your head up high and face the world. Let them see your 9 _ inside. ” That is how Mom taught me pride.Mom’s love and 10 gave me the confidence to remove my own doubt. 11 I was able to look people in the 12 . I learned not only to appreciate 13 but to have deep love for others.“Hold your head up high” has been 14 many times in my home. Each of my children has felt its 15 . The gift Mom gave me lives on in another generation.1. A. still B. even C. almost D. hardly2. A. bad B. good C. kind D. rude3. A. dressed up B. stood up C. grew up D. picked up4. A. unnatural B. unhappy C. unhealthy D. unfair5. A. easy B. necessary C. interesting D. different6. A. show B. hide C. talk D. expose7. A. indoors B. outdoors C. inside D. outside8. A. did B. waited C. missed D. wanted9. A. beauty B. heart C. mind D. attitude10. A. support B. encouragement C. understanding D. expectation11. A. Normally B. Immediately C. Finally D. Suddenly12. A. mind B. face C. heart D. eye13. A. teacher B. mother C. myself D. others14. A. read B. heard C. broadcast D. written 15. A. power B. promise C. energy D. secretⅡ：语法填空（共10小题，每小题2分，满分20分）阅读下面短文，短文中有10个空格。
请按照语境以及括号里的提示词完成语法填空、词形变化等。
答案填写在答题卡标号31—40的对应位置。
(请将该部分答案写在答题纸上) Just now, I entered the website “Topic for Today”. I feel 16 (interest) in the report on middle school students’ using cell-phones on campus. In fact, more students now come to school 17 cell-phones. My schoolmates have different opinions. Some think 18 is convenient to get in touch with others with the cell-phone, which also makes you feel safe especially in time of trouble. Besides, it is nice 19 (enjoy) various functions of different cell-phones. But, 20 think it differently. First, the cell-phone is not 21 must in school, as there are some IC phones there, 22 (make) it easy to call others. Second, many students often play e-games and send e-massages with their cell-phones, even in class, 23 will surely have bad effects on their study. What’s more, it 24 (result) in a great waste of time and money. In my opinion, the cell-phone is a 25 (use) tool in our daily life. But it doesn’t mean we can use freely in school.Ⅲ：阅读理解（共20小题；每小题2.5分，满分50分）APhilip was a nine-year-old boy in a Sunday school class of 8-year-old girls and boys. Sometimes the third graders didn’t welcome Philip into their group and usually tricked him. This was not because he was older, but becaus e he was “different”. You see, Philip suffered from a condition called Downs’s Syndrome. This made him “different”, with its facial characteristics, slow responses and mental problems.One Sunday after Easter, the Sunday school teacher gathered some plastic eggs that pulled apart in the middle. The teacher gave one to each child. On that beautiful spring day, the children were to go out and discover for themselves some symbol of “new life” and place it inside the plastic eggs.After the children returned to the classroom, the teacher opened their eggs one by one, asking each child to explain that symbol of “new life”. The first opened egg contained a flower. Everyone cheered. In another was a butterfly…. When the teacher opened the last egg, it was em pty. “That’s stupid,” said someone. The teacher felt a pull at his shirt. It was Philip. Looking up, Philip said, “It’s mine. I did it. It’s empt y. I have new life, because the tomb（坟墓,）is empty.” Not a sound was heard in class at all. From that day on, Philip became a real part of the group. They welcomed him, and whatever made him different was never mentioned again.Philip’s family knew he wouldn’t live a long life, for with the disease there were too many things wrong with him.26. The underlined word “condition” in the first paragraph probably means ______.A. diseaseB. statusC. healthD. grade27. It can be inferred from the first paragraph that _________.A. Philip was older and more sensitive.B. the 8-year-olds were friendly to Philip.C. Philip hated his classmates in school.D. the 8-year-olds were sometimes cruel.28. The teacher gave each child one plastic egg to let them ________.A. play around on that beautiful spring day.B. try to pull it apart in the middle.C. put some symbol of “new life” into it.D. go out and discover themselves.29. After Philip explained his new life, ________.A. the class thought he was clever.B. He felt dying.C. He began to study in the class.D. The class fell silent.30. We learn from the passage that _________.A. the teacher used to have classes outdoorsB. Philip was accepted by his classmates in the endC. Philip was healthy as a whole.D. The Philip’s new life wish was empty.BMany animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A kind of white butterfly will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the season.Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modern life.31. We can infer from the text that humans and animals .A. depend on one sense in choosing foodB. are not satisfied with their foodC. eat entirely different foodD. choose food in similar ways32. Which of the following eats only one type of food?A. The small bird.B. The white butterfly.C. The bear.D. The fox.33. Certain animals change their choice of food when ________.A. they are attracted by different smellsB. the food color changesC. they move to different placesD. the season changes34. We can learn from the last paragraph that _________.A. some people care little about healthy dietB. French and British food is goodC. some people have few choices of foodD. food is chosen for a good reason35. Which of the following statements is true?A. Animals often use senses to eat their food.B. The diet of birds and fox will be the same.C. All animals spend their lives eating one type of food.D. Most animals have a more varied diet.CBelieve it or not, if you do not use your arms or your legs for a long time, they become weak. When you start using them again, they slowly become strong again. Everybody knows that. Yet many people do not seem to know that memory works in the same way.When someone says that he has a good memory, he really means that he keeps his memory in practice by using it. When someone else says that his memory is poor, he really means that he does not give it enough chance to become strong.If a friend says that his arms and legs are weak, we know that it is his fault. But if he tells us that he has a poor memory, many of us think that his parents are to blame, and few of us know that it is just his own fault.Have you ever found that some people can't read or write but they have better memories? This is because they cannot read or write and they have to remember things; they cannot write them down in a little notebook. They have to remember days, names, songs and stories; so their memory is the whole time being exercised.36. The main reason for one's poor memory is that ______.A. his memory is not often usedB. he does not use his arms or legs for some timeC. he can't read or writeD. his father or mother may have a poor memory37. If you do not use your arms or legs for some time, _______.A. you can't use them any moreB. they will become strongerC. they will become weak but they slowly become strong againD. they will become weak and won't become strong until you use them again38. Which of the following is NOT true?A. Your memory like your arms or legs, becomes weak if you do not give it enoughchance for practice.B. Don't learn how to read and write if you want to have a better memory.C. A good memory comes from more practice.D. Your memory works in the same way as your arms or legs.39. Some people can't read or write, but they usually have better memories, because_______.A. they have saved much troubleB. they have saved much time to remember thingsC. they can't write everything in a little notebookD. they have to use their memories all the time40. Give the best title for this passage.A. Don't Stop Using Your Arms or LegsB. Strong Arms and Good MemoriesC. How to Have a Good MemoryD. Learn From the PeopleDCan you understand the beginning of this essay（短文）?“My smmr hols wr CWOT. B4, we usd 2go2 NY 2Cmy bro, his GF & 3 kds FTF.”The Scottish teacher who received it in class had noidea what the girl who wrote it meant. The essay was writtenin a form of English used in cell phone text messages（短信）.Text messages (also called SMS) through cell phonesbecame very popular in the late 1990s. At first, mobilephone companies thought that text messaging would be agood way to send messages to customers, but customersquickly began to use the text messaging service to sendmessages to each other. Teenagers in particular enjoyedusing text messaging, and they began to create a new language for messages called “texting.”A text message is limited to 160 characters, including letters, spaces, and numbers, so messages must be kept short. In addition, typing on the small keypad of a cell phone is difficult, so it's common to make words shorter. In texting, a single letter or number can represent（代表）a word, like “r” for “are,” “u” for “you,” and “2” for “to.” Several letters can also represent a phrase, like “lol” for “laughing out loud.” Another characteristic（特征）of texting is the leaving out of letters in a word, like spelling “please” as “pls.”Some parents and teachers worry that texting will make children bad spellers and bad writers. The student who wrote the essay at the top of this page said writing in that way was more comfortable for her. (The essay said, “My summer holidays were a complete waste of time. Before, we used to go to New York to see my brother, his girlfriend, and their three kids face to face.”)Not everyone agrees that texting is a bad thing. Some experts say languages always develop, and this is just another way in which English is changing. Other people believe texting will disappear soon. New technology for voice messages may soon make text messages a thing of the past.41. What is the writer's opinion of text messaging?A. The writer does not give his opinions.B. It is not bad for children.C. It will make children bad writers.D. It is fun and easy to do.42. Which characteristic of texting is NOT described in the passage?A. Using letters to represent words.B. Using phrases to represent essays.C. Using letters to represent phrases.D. Using numbers to represent words.43. Which of the following was most probably the title of the student's essay?A. My Smmr HolsB. CU in LAC. My GFD. My Gr8 Tchr44. Why do some people think that texting is bad?A. It costs too much.B. It's too difficult to type.C. Teenagers won't learn to write correctly.D. It's not comfortable.45. Why aren't some people worried about the effect of texting?A. Not many people use texting.B. Spelling in English is too difficult.C. Teenagers quickly become bored with texting.D. Texting will disappear because of new technology.Ⅳ：信息匹配（共5小题；每小题2分，满分10分）阅读下列应用文及相关信息,并按照要求匹配信息.首先阅读下列百老汇最近上演的节目信息。
