广东省肇庆市2014届高三第一次模拟考试英语[2014肇庆一模]

肇庆市2014届高三下学期3月第一次模拟考试 理综试题（物理） 本试卷共12页，36小题，满分300分，考试用时150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，将自己所在县（市、区）、姓名、试室号、座位号填写在答题卷上对应位置，再用2B铅笔将准考证号涂黑2. 选择题每小题选出答案后，用2B铅笔把答题卷上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案，答案不能写在试卷或草稿纸上3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卷各题目指定区域内相应的位置上；如需改动，先划掉原来的答案，然后再在答题区内写上新的答案；不准使用铅笔和涂改液不按以上要求作答的答案无效 13. 物理学理论的建离不开实验．下几个在物理学发展史上有重要地位的物理实验，以及与之相关的物理学发展史实，其中正确的是 A.卢瑟福α粒子散射实验为原子核式结构理论提供实验基础 B.汤姆生发现电子揭示了原子核结构的复杂性 C.查德威克发现中子揭示了原子不再是物质的最小微粒 D.贝克勒尔发现天然放射现象证实了玻尔原子理论正确 14.如图所示为氢原子的能级示意图，一群氢原子处于n=3的激发态，在向较低能级跃迁 的过程中向外辐射出光子，用这些光子照射逸出功为2.49eV的金属钠下列说法正确的是 A.这群氢原子能辐射出三种不同频率的光，其中从n=3能级跃 迁到n=2能级所发出的光波长最短 B.这群氢原子在辐射光子的过程中电子绕核运动的动能减小， 电势能增大 C.能发生光电效应的光有三种 D.金属钠表面所发出的光电子的最大初动能9.60eV 15. 如图所示，水平放置的平行金属导轨MN和PQ之间接有定值电阻R，导体棒ab长为l且 与导轨接触良好，整个装置处于竖直向上的匀强磁场 中，现使导体棒ab匀速向右运动，下列说法正确的是 A.导体棒ab两端的感应电动势越来越小 B.导体棒ab中的感应电流方向是a→b C.导体棒ab所受安培力方向水平向右 D.导体棒ab所受合力做功为零 16.“神”载人航天飞行圆满成功“神”飞船在到达预定的圆轨道之前，运载火箭的末级火箭仍和飞船连接在一起（飞船在前，火箭在后），先在大气层外某一轨道上绕地球做匀速圆周运动，然后启动脱离装置，使飞船加速并实现船箭脱离，最后飞船到达预定的圆轨道．关于飞船在预定的圆轨道上运行的说法，正确的是 A.预定的圆轨道比某一轨道离地面更远，飞船速度比脱离前大 B.预定的圆轨道比某一轨道离地面更近，飞船的运周期变小 C.预定的圆轨道比某一轨道离地面更远，飞船的向心加速度变小 D.飞船和火箭仍在轨道上运，飞船的速度比火箭大 双项选择题；本大题共9个小题，每小题6分，共54分．在每小题给出的四个选项中， 有二个选项符合题意．全选对得6分，只选一项且正确的得3分，有选错或不答的得0 分. 17. 如图所示，导热的气缸开口向下，缸内活塞封闭了一定质量的理想气体，活塞可自由滑 动且不漏气，活塞下挂一个沙桶，沙桶装满沙子时，活塞恰好静止．现将沙桶底部钻一个 小洞，让细砂慢慢漏出，气缸外部温度恒定不变．则 A.缸内气体压强减小，内能增加 B.缸内气体压强增大，内能不变 C.缸内气体压强增大，内能减少 D.外界对缸内气体做功 18. a、b两辆汽车在同一条平直公路上行驶的v－t图象如图所示．下列说法正确的是 A.t1时刻，a车和b车处在同一位置 B.t2时刻，a、b两车运动方向相反 C.在t1到t2这段时间内，b车的加速度先减小后增大 D.在t1到t2这段时间内，b车的位移大于a车的位移 19. 如图所示，一理想变压器原线圈匝数n1＝1000匝n2＝200匝，原线圈中接 一交变电源，交变电源电压．副线圈中接一电动机，电阻为11 Ω， 电流表示数为1 A电表对电路的影响忽略不计下列说法正确的是A.此交流电的频率为100 HzB.电流表示数为 A C.此电动机输出功率为3 W D.电压表示数为 20. 如图所示，将两个相同的木块a、b置于固定在水平面上的粗糙斜面上，a、b中间用一轻弹簧连接，b的右端用细绳与固定在斜面上的挡板相连．达到稳定状态时a、b均静止， 弹簧处于压缩状态，细绳上有拉力下列说法正确的是 A.达到稳定状态时a所受的摩擦力一定不为零 B.达到稳定状态时b所受的摩擦力一定不为零 C.在细绳剪断瞬间，b所受的合外力为零 D.在细绳剪断瞬间，a所受的合外力为零 21. 如图所示，真空中存在范围足够大的匀强电场，A、B为该匀强电场的两个等势面．现有 三个完全相同的带等量正电荷的粒子a、b、c，从等势面A上的某点同时以相同速率v0向 不同方向开始运动，其中a的初速度方向垂直指向等势面B；b的初速度方向平行于等势 面；c的初速度方向与a相反．经过一段时间，三个粒子先后通 过等势面B．已知三个粒子始终在该匀强电场中运动，不计重力， 下列判断正确的是 A.等势面A的电势高于等势面B的电势 B. a、b、c三粒子通过等势面B时的速度大小相等 C.开始运动后的任一时刻，a、b两粒子的动能总是相同 D.开始运动后的任一时刻，三个粒子电势能总是相等 35．(18分) 如图所示，质量M=1.5kg的小车静止于光滑水平面上并靠固定在水平面上的桌子右边，其上表面与水平桌面相平，小车的左端放有一质量为0.5kg的滑块Q．水平放置的轻弹簧左端固定，质量为0.5kg的小物块P置于桌面上的A点并与弹簧的右端接触，此时弹簧处于原长．现用水平向左的推力将P缓慢推至B点（弹簧仍在弹性限度内），推力做功WF=4J，撤去后，P沿桌面滑到小车左端并与Q发生弹性碰撞，最后Q恰好没从小车上滑下．已知Q与小车表面间动摩擦因数μ=0.1．（g=10m/s2）求： （1）P刚要与Q碰撞前的速度是多少？ （2）Q刚在小车上滑行时的初速度v0是多少？ （3）为保证Q不从小车上滑下，小车 的长度至少为多少？ 36．(18分) 如图所示，在直角坐标系xoy平面的第象限内有半径为r的圆o1分别与x轴、y轴相切于C（－r，0）、D（0，r） 两点，圆o1内存在垂直于xoy平面向外的匀强磁场，磁感应强度为B．与y轴负方向平行的匀强电场左边界与y轴重合，右边界交x轴于G点，一带正电的A粒子（重力不计）电荷量为q、质量为m，以某一速率垂直于x轴从C点射入磁场，经磁场偏转恰好从D点进入电场，最后从G点以与x轴正向夹角为45°的方向射出电场．求： （1）A粒子在磁场区域的偏转半 径及OG之间的距离； 该匀强电场的电场强度E； （）若另有一个与A的质量和电荷量相同、速率也相同的粒子A′，从C点沿与x轴负方向成30°角的方向射入磁场，则粒子A′再次回到x轴上某点时，该点的坐标值为多少？2014届高三一模理科综合物理 131415161718192021ADDCBDCDBCADAB 34．（18分） （3分） ③2k（3分） 35．(18分) 解：（1）压缩弹簧做功有 ① （1分） 当弹簧完全推开物块P时，有 ② （2分） 得 （1分） （2）P、Q之间发生弹性碰撞，碰撞后Q的速度为，P的速度为③ （2分） ④ （2分） 式解得， （1分） （3）滑块Q在小车上滑行一段时间后两者共 ⑤（分）能量，系统产生的摩擦热 ⑥（分）解得（分） 滑块Q在小车上滑行，做匀减速运动 ⑤（2分） 小车开始做初速度为零的匀加速运动 （2分） 小车与滑块达到相同速度所用的时间为t，有 （2分） 小车的长度为L ⑧（2分）（1分）．（18分）解：（1）设粒子A速率为v0 ，其圆心圆心O点，A粒子A粒子运动至D点时速度与y轴垂直，粒子A从D至G作类平抛运动，其加速度为a，在电场中运行的时间为t ① （分） （分） ③（分） 联立①②解得 ④（1分） （2）粒子A的轨迹圆半径为 ，由 ⑤（2分） ⑥（分） 联立①⑤⑥解得 ⑦（分） （3）粒子A′圆心为O′?，因为∠O′?CA′?=90°，O′C=r，以?O′为圆心为半径做A′的轨迹圆交圆形磁场O1于H点，则四边形CO′H O1为菱形，故O′H∥y轴，粒子A′?从磁场中出来交y轴于I点，HI⊥O′H，所以粒子A′也是垂直于y轴进入电场粒子A′从J点射出电场，交x轴于K点，因与粒子A在电场中的运动类似，OI－JG=（分） 又OI=r+rcos30° ⑨ （分）JG=rcos30°=r 根据图中几何知识可得：∠JKG=45°，GK=GJ粒子A′再次回到x轴上的坐标为（，0） （分） 高考学习网： 高考学习网： v0 v0 a A n2 n1 t2 b a O v t N Q B b P R M v n=1 －13.6eV n=2 －3.40eV n=3 －1.51eV n=4 －0.85eV v0 b c A B P Q M F G A′ 45° O O1 y C 30° D A x A K 30° D G J I H 45° A′ O′′ O O1 y x C。

广东肇庆中学2014学年高三月考（9月）英语试题本试卷共8页，满分135分，考试用时120分钟。

注意事项：1．答卷前，考生务必将自己的姓名、班级、座号写在答题卷密封线内。

2．非选择题必须用黑色字迹的钢笔或签字笔作答。

3．答案一律写在答题区域内，不准使用铅笔和涂改液．不按以上要求作答的答案无效．Ⅰ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1~15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。

Wishing to encourage her young son’s progress on the piano, a mother took her boy to a Paderewski concert. After they were 1 , the mother spotted a friend in the audience and walked down the passage to greet her.Seizing the 2 to explore the wonders of the concert hall, the little boy rose and 3___explored his way through a door marked ―NO ADMITTANCE.‖ When the house lights dimmed and the concert was about to begin, the mother returned to her seat and 4 that the child was missing. Suddenly, the curtains parted and spotlights focused on the impressive Steinway on stage. In ____5 , the mother saw her little boy sitting at the key-board, 6__ picking out Twinkle, Twinkle Little Star.At that moment, the great piano master made his__ 7 , quickly moved to the piano, and __8__ in the boy’s ear, ―Don’t quit. Keep playing.‖Then 9 over, Paderewski reached down with his left hand and began filling in a bass part. Soon his right arm reached around to the other side of the child and he added a running obbligato (伴奏). Together, the old master and the young novice (beginner) transformed a frightening situation into a wonderfully 10 experience. The audience was strongly 11 .That’s the way it is in life. What we can accomplish on our own is hardly___12 . We try our best, but the 13 aren’t exactly graceful flowing music. But when we trust in the hands of a Greater Power, our life’s work 14 can be beautiful.Next time you set out to 15 great achievements, listen carefully. You can hear the voice of the Master, whispering in your ear, ―Don’t quit. Keep playing.‖1. A. seated B. welcomed C. dressed D. rested2. A. fact B. difficulty C. opportunity D. risk3. A. actually B. occasionally C. fortunately D. eventually4. A. discovered B. told C. accepted D. offered5. A. joy B. trust C. horror D. pleasure6. A. quickly B. personally C. generally D. innocently7. A. entrance B. disappearance C. arrangement D. opening8. A. shouted B. repeated C. promised D. whispered9. A. turning B. bending C. rising D. handing10. A. creative B. effective C. annoying D. fearing11. A. addicted B. invited C. attacked D. attracted12. A. abnormal B. remarkable C. unimportant D. ordinary13. A. goals B. intentions C. results D. purposes14. A. mainly B. truly C. slightly D. fortunately15. A. overcome B. enjoy C. accomplish D. become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16—25的相应位置上。

肇庆市中小学教学质量评估 2014届高中毕业班第一次模拟考试数 学（文科）本试卷共4页，21小题，满分150分. 考试用时120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班别、姓名、考号填写在答题卡上.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；如需要改动，用橡皮擦干净后，再选涂其它答案，答案不能写在试卷上.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相应的位置上；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.不按以上要求作答的答案无效.参考公式：柱体的体积公式V=Sh ，其中S 为柱体的底面积，h 为柱体的高. 锥体的体积公式13V Sh =，其中S 为锥体底面积，h 为锥体高. 一组数据1x ，2x ，…，n x 的方差])()()[(1222212x x x x x x ns n -++-+-= ，其中x 表示这组数据的平均数.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，只有一项是符合题目要求的. 1．若全集{1,2,3,4,5}U =，集合{1,3,5}M =，{3,4,5}N =，则=)(N M C UA ．{2}B ．{1，2}C ．{1，2，4}D ．{1，3，4，5} 2．函数)1(log 4)(22-+-=x x x f 的定义域是A ．(1,2]B ．[1,2]C ．(1,)+∞D ．[2,)+∞3．设i 为虚数单位，则复数34iz i-=在复平面内所对应的点位于 A ．第四象限 B ．第三象限C ．第二象限D ．第一象限 4．下列函数中，在区间(,0)-∞上为减函数的是A ．()2xf x = B ．()|1|f x x =- C ．()cos f x x = D ．1()f x x x=+5．执行如图1所示的程序框图，若输入n 的值为4，则输出s 的值是A ．2B ．6C ．24D ．1206．某几何体的三视图如图2所示（单位：cm ），则该几何体的体积是A ．5033cm B ．503cm C ．2533cm D ．253cm7．已知圆C 的圆心是直线10x y -+=与x 轴的交点，且圆C 与直线30x y ++= 相切，则圆C 的方程是 A ．22(1)2x y ++= B ．22(1)8x y ++= C ．22(1)2x y -+= D ．22(1)8x y -+=8．在锐角ABC ∆中，AB =3，AC =4，其面积ABC S ∆=BC =A ．5BC D9．已知e 为自然对数的底数，设函数()xf x xe =，则A ．1是)(x f 的极小值点B ．1-是)(x f 的极小值点C ．1是)(x f 的极大值点D ．1-是)(x f 的极大值点10．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(=m ，)0,6(π=n ，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 ．B ．C ．2D ．4 二、填空题：本大题共5小题，考生作答4小题，每小题5分，满分20分. （一）必做题（11～13题）11．已知{}n a 是递增的等差数列，12a =，n S 为其前n 项和，若126,,a a a 成等比数列，则5S = ▲ . 12．若曲线21232-+=x x y 的某一切线与直线34+=x y 平行，则切线方程为 ▲ .13．已知变量,x y 满足约束条件1,31x y y x y +≥⎧⎪≤⎨⎪-≤⎩，若z k x y =+的最大值为5，则实数k = ▲ .（ ） ▲14．（坐标系与参数方程选做题）以平面直角坐标系的原点为极点，x 轴的正半轴为极轴建立极坐标系，已知曲线C 的参数方程为2cos 2(1sin )x ty t =⎧⎨=-⎩（其中t 为参数，且02t π≤<），则曲线C 的极坐标方程为 ▲ .15．（几何证明选讲选做题）如图3，在ABC ∆中，︒=∠90BAC ，BC AD ⊥，AE DE ⊥，D 、E 为垂足，若AE =4，BE =1， 则AC = ▲ .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）ks5u在∆ABC 中，角A 、B 、C 的对边分别为a 、b 、c ，且角A 、B 都是锐角，a =6，b =5 ，21sin =B . （1） 求sin A 和cos C 的值；（2） 设函数)2sin()(A x x f +=，求)2(πf 的值.17．（本小题满分13分）已知某山区小学有100名四年级学生，将全体四年级学生随机按00～99编号，并且按编号顺序平均分成10组．现要从中抽取10名学生，各组内抽取的编号按依次增加10进行系统抽样.（1）若抽出的一个号码为22，则此号码所在的组数是多少？ 据此写出所有被抽出学生的号码；（2）分别统计这10名学生的数学成绩，获得成绩数据的 茎叶图如图4所示，求该样本的方差；（3）在（2）的条件下，从这10名学生中随机抽取两名 成绩不低于73分的学生，求被抽取到的两名学生的成绩之和 不小于154分的概率． 18．（本小题满分13分）如图5，AB 是圆O 的直径，点C 是弧AB 的中点， 点V 是圆O 所在平面外一点，D 是AC 的中点，已知2AB =，2VA VB VC ===. ks5u（1）求证：OD //平面VBC ； （2）求证：AC ⊥平面VOD ； （3）求棱锥C ABV -的体积. 19．（本小题满分14分）已知数列}{n a 的前n 项和为n S ，对一切正整数n ，点),(n n S n P 都在函数x x x f 2)(2+=的图象上.（1）求1a ，2a ；（2）求数列}{n a 的通项公式；ks5u （3）若211++=n n n n a a a b ，求证数列}{n b 的前n 项和601<n T ． 20．（本小题满分14分）在平面直角坐标系xOy 中，点P 到两圆C 1与C 2的圆心的距离之和等于4，其中C 1：023222=+-+y y x ，C 2：033222=-++y y x . 设点P 的轨迹为C ．（1）求C 的方程；ks5u（2）设直线1y kx =+与C 交于A ，B 两点．问k 为何值时OA ⊥OB？此时AB 的值是多少？ks5u21．（本小题满分14分）设函数3211()(0)32a f x x x ax a a -=+-->. （1）若函数)(x f 在区间（-2，0）内恰有两个零点，求a 的取值范围； （2）当a =1时，求函数)(x f 在区间[t ，t +3]上的最大值.肇庆市2014届高中毕业班第一次模拟考试数学（文科）参考答案及评分标准一、选择题二、填空题ks5u11．70 12．24-=x y 13．1-=k 或21=k （对1个得3分，对2个得5分） 14．θρsin 4= 15．10三、解答题16．（本小题满分12分）解：（1）由正弦定理sin sin a b A B =，得sin 3sin 5a B Ab ==. （3分）∵A 、B 是锐角，∴4cos 5A == ， （4分）cos 2B ==， （5分） 由()C A B π=-+ ，得(cos cos[]cos())C A B A B π-+==-+ （6分）cos cos sin sin A B A B =-+ （7分）4313525210-=-⨯+⨯= （8分）（2）由（1）知4cos 5A =， ∴2sin 2cos 22cos 122f A A A ππ⎛⎫⎛⎫=+==-⎪ ⎪⎝⎭⎝⎭（11分） 24721525⎛⎫=⨯-= ⎪⎝⎭（12分）17．（本小题满分13分）解：（1）由题意，得抽出号码为22的组数为3. （2分） 因为2＋10×(3－1)＝22，所以第1组抽出的号码应该为02，抽出的10名学生的号码依次分别为：02， 12， 22， 32， 42，52，62，72，82，92. （4分） （2）这10名学生的平均成绩为：x =110×(81＋70＋73＋76＋78＋79＋62＋65＋67＋59)＝71， （6分）故样本方差为：2110s =⨯（102＋12＋22＋52＋72＋82＋92＋62＋42＋122）＝52. （8分） （3）从这10名学生中随机抽取两名成绩不低于73分的学生，共有如下10种不同的取法： （73，76），（73，78），（73，79），（73，81），（76，78），（76，79），（76，81），（78，79），（78，81)，（79，81）. （10分） 其中成绩之和不小于154分的有如下7种：（73，81），（76，78），（76，79），（76，81），（78，79），（78，81)，（79，81）. （12分） 故被抽取到的两名学生的成绩之和不小于154分的概率为：710p = （13分）18．（本小题满分13分）证明：（1）∵ O 、D 分别是AB 和AC 的中点，∴OD//BC . （1分） 又OD ⊄面VBC ，⊂BC 面VBC ，∴OD //平面VBC . （3分） （2）∵VA =VB ，O 为AB 中点，∴VO AB ⊥. （4分） 连接OC ，在VOA ∆和VOC ∆中，,,OA OC VO VO VA VC ===,∴VOA ∆≌∆VOC ，∴VOA ∠=∠VOC =90︒， ∴VO OC ⊥. （5分） ∵AB OC O = , AB ⊂平面ABC , OC ⊂平面ABC , ∴VO ⊥平面ABC . （6分） ∵AC ⊂平面ABC ，∴AC VO ⊥. （7分） 又∵VA VC =，D 是AC 的中点，∴AC VD ⊥. （8分） ∵VO ⊂平面VOD ，VD ⊂平面VOD ，VO VD V = ，∴ AC ⊥平面DOV . （9分）（3）由（2）知VO 是棱锥V ABC -的高，且VO == （10分） 又∵点C 是弧的中点，∴CO AB ⊥，且1,2CO AB ==， ∴三角形ABC 的面积1121122ABC S AB CO ∆=⋅=⨯⨯=， （11分）∴棱锥V ABC -的体积为111333V ABC ABC V S VO -∆=⋅=⨯=， （12分）故棱锥C ABV -的体积为3. （13分）19．（本小题满分14分）解：（1）∵点),(n n S n P 都在函数x x x f 2)(2+=的图象上，ks5u∴2*2()n S n n n N =+∈， （1分） ∴113a S ==， （2分） 又21222228a a S +==+⨯=，∴25a =. （4分） （2）由（1）知，2*2()n S n n n N =+∈，当2≥n 时，12 1.n n n a S S n -=-=+ （6分） 由（1）知，11231+⨯==a 满足上式， （7分） 所以数列}{n a 的通项公式为21n a n =+. （8分） （3）由（2）得])52)(32(1)32)(12(1[41)52)(32)(12(1++-++=+++=n n n n n n n b n（11分）n n b b b T +++= 21])52)(32(1)32)(12(1971751751531[41++-++++⨯-⨯+⨯-⨯=n n n n （12分） ])52)(32(1531[41++-⨯=n n （13分） 601)52)(32(41601<++-=n n . （14分） 20．（本小题满分14分）ks5u解：（1）由已知得两圆的圆心坐标分别为12(0,C C . （1分）设P （x ，y ），由椭圆定义可知，点P 的轨迹C 是以(0(0，为焦点，长半轴长为2的椭圆． （2分）它的短半轴长1b ==， （3分）故曲线C 的方程为2214y x +=． （4分）（2）设1122()()A x y B x y ，，，，其坐标满足22141.y x y kx ⎧+=⎪⎨⎪=+⎩， ks5u 消去y 并整理得22(4)230k x kx ++-=， （5分）∵042≠+k ，222412(4)16(3)0k k k ∆=++=+>，∴1,2x =故1212222344k x x x x k k +=-=-++，． （6分） 又1)()1)(1(212122121+++=++=x x k x x k kx kx y y （7分）于是222121222223324114444k k k x x y y k k k k -++=---+=++++． （8分） 令041422=++-k k ，得21±=k . （9分） 因为2121y y x x OB OA +=⋅，所以当21±=k 时，有0=⋅，即⊥. （10分） 当12k =±时，12417x x += ，121217x x =-． （11分）AB ==（12分）而22212112()()4x x x x x x -=+-23224124134171717⨯=+⨯=， （13分）所以17AB = ． （14分）21．（本小题满分14分） 解：（1）∵3211()(0)32a f x x x ax a a -=+--> ∴()2()1(1)()f x x a x a x x a '=+--=+-， （1分） 令()0f x '=，解得121,0x x a =-=> （2分） 当x 变化时，)(x f '，)(x f 的变化情况如下表：故函数)(x f 的单调递增区间为（-∞，-1），（a ，+∞）；单调递减区间为（-1，a ）；（4分） 因此)(x f 在区间（-2，-1）内单调递增，在区间（-1，0）内单调递减，要使函数()f x 在区间(2,0)-内恰有两个零点，当且仅当⎪⎩⎪⎨⎧<>-<-0)0(0)1(0)2(f f f ， （5分）解得103a <<， 所以a 的取值范围是（0，31）. （6分） （2）当a =1时，131)(3--=x x x f . 由（1）可知，函数)(x f 的单调递增区间为（-∞，-1），（1，+∞）；单调递减区间为（-1，1）；31)1()(-=-=f x f 极大值. （7分）①当t +3<-1，即t <-4时，因为)(x f 在区间[t ，t +3]上单调递增，所以)(x f 在区间[t ，t +3]上的最大值为583311)3()3(31)3()(233m a x +++=-+-+=+=t t t t t t f x f ； （9分）②当231≤+≤-t ，即14-≤≤-t 时，因为)(x f 在区间(]1,-∞-上单调递增，在区间[-1，1]上单调递减，在区间[1，2]上单调递增，且31)1()2(-=-=f f ，所以)(x f 在区间(]2,∞-上的最大值为31)1()2(-=-=f f . （10分） 由231≤+≤-t ，即14-≤≤-t 时，有[t ，t +3]⊂ (]2,∞-，-1∈[t ，t +3]，所以)(x f 在[,3]t t +上的最大值为31)1()(m ax -=-=f x f ； （11分） ③当t +3>2，即t >-1时，由②得)(x f 在区间(]2,∞-上的最大值为31)1()2(-=-=f f . 因为)(x f 在区间（1，+∞）上单调递增，所以)2()3(f t f >+，故)(x f 在[],3t t +上的最大值为58331)3()(23m ax +++=+=t t t t f x f . （13分）综上所述，当a =1时，)(x f 在[t ，t +3]上的最大值⎪⎪⎩⎪⎪⎨⎧-≤≤--->-<+++=)14(31)14(58331)(23maxt t t t t t x f 或. （14分）。

肇庆市2014届一模英语笔试部分参考答案I、第一节：1-5 DAACB 6-10 ABDAB 11-15 CBDCD第二节：16.kindness 17.when 18. it 19. our 20. carrying21.has lain 22. but 23.The 24. into 25. was movedII、第一节：26-30 CBDCA 31-35 ABDDC 36-40 DADCB 41-45 DACBC 第二节：46-50 AFCBDIII、第一节：One possible version:Duan Inkstone, ranking the first of “The Four Famous Inkstones” in China, got its name for the fact that it was originally produced in Duanzhou of Zhaoqing. It’s also widely known as a traditional handcraft and has a long history going back to more than 1300 years ago. Duan Inkstone became universally popular in Song Dynasty, when it was favored by ancient Chinese literati. Nowadays, many collectors would add to their collection of Duan Inkstone owing to its wide varieties, high quality, let alone its beautiful design. As an important writing tool, Duan Inkstone has played a very important role in spreading Chinese culture, and it is also a symbol of profound cultural background of Zhaoqing.第二节：One possible version:A man noticed a boy repeatedly picking up the trapped starfish and throwing them into the sea despite being unable to save all of them. Consequently, the man was moved and joined the boy to save the struggling starfish.Reading the impressive story, I find the boy was so kind-hearted that he should really deserve praise from all the people. Young as he was, he fulfilled what was incredible to people. Actually, the young boy set a good example, especially to the young.My meaningful experience of offering help to a schoolmate will never escape from my memory. When I was in Senior Two, one of my schoolmates suffered from asevere and rare disease, which cost his parents all their savings and even put them heavily into debt. For lack of money, he was unable to get further medical treatment. Knowing this, I together with my classmates called for all the students and friends to collect money for him. It was our timely efforts that helped him out of hardships. Eventually he was saved.As the saying goes, “A small act of kindness goes a long way.” Therefore, I appeal to all the people to get involved in the campaign of offering a hand to others. I think only when we offer assistance to each other voluntarily can we live in a harmonious society.。

肇庆市2014届高中毕业班第一次模拟考试语文参考答案一、（12分，每小题3分。

）1. D（D tuān /chuài qí/jī qiáng/qiǎng；A gěng huì sào/sāo；B dú lài chèn/chēng；C niè Lì xìng/xīng ）2. B (方兴未艾：形容事物正处于兴旺阶段或形势正在蓬勃发展，作褒义用。

此处应改为“层出不穷”。

)3．B（A“运动员”由“优秀选手”组成，搭配不当，“运动员”应改为“代表队”；C逻辑错误，前半句写“将访穗”，后面的两个“了”字就要删去；D句式杂糅，在“把”后面加“以”，“以……为重点”“把……作为重中之重”。

）4．D（A“乙醚”“鱼丸”是特殊称谓，要用双引号；B选择问句，在句末用问号，句中用逗号；C省略号不能与“等”“等等”同时用。

）二、（35分）5.（3分）B（聚敛）6.（3分）C（认为，动词；A表修饰/表目的；B助词“的”/代词，代指青苗法； D代词，他的/还是，表让步语气。

）7.（3分）A8.（3分）D（“赵瞻担心难以攻克，所以反对兴兵”有误，原文是以诚信为由反对兴兵。

）9.（1）（7分）①京东发生多起盗贼起事，赵瞻请求更换曹、濮两地没有才能的守臣，皇帝没有回应他的请求。

（数起、守臣之不才、报、句意各1分）②王安石想赵瞻协助自己，派他的党羽手下用知杂御史（的官职）诱引赵瞻。

（饵、以、句意各1分）（2）（3分）①今欲为长久计，爱养百姓，诚不便②若以为可回，宜为数岁之计，以缓民力（只要合乎题意，其它答案也可给分）10.（1）上阕出现的意象有：斜阳、青山、澄江。

（1分）春日傍晚在一道落日的红光映照下，远处的群山只有山峰依然现出点点苍翠之色，一望无际的长江烟波浩淼，清澄的江流舒展在天幕下，宛如一条素练。

这三句从大处远处着眼，状写黄昏时的江天澄静空阔的景象，共同构成了一幅宁静、空阔、幽婉的画面。

广东省肇庆市2013-2014学年高一第一学期期末质量检测英语试题本试卷为高一英语试卷的笔试部份共8页，满分135分。

考试用时120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，将自己所在县（市、区）、姓名、试室号、座位号填写在答题卷上对应位置，再用2B铅笔将准考证号涂黑．2. 选择题每小题选出答案后，用2B铅笔把答题卷上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案，答案不能写在试卷或草稿纸上．3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卷各题目指定区域内相应的位置上；如需改动，先划掉原来的答案，然后再在答题区内写上新的答案；不准使用铅笔和涂改液．不按以上要求作答的答案无效．I．语言知识及运用（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1—15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。

“Sign（签名）this paper if you don’ t like Ms. Strom,’’ the note said. My classmates’ __1__ were all on me. I had a look at my teacher quickly as she pleasantly taught the afternoon class. I knew what the right __2__ was, but the bad feelings I had toward her, as well as my classmates’ insisting looks, made my decision more difficult.I __3__ why my friends disliked her. She was very strict. If I signed it, my friends would be pleased, but I didn’t want to see Ms. Strom’s face when she realized what the note said.My friends began to get __4__, wanting me to sign the paper and __5__ it along, but I didn’t know what to do. I quickly made my decision — I would not sign. I passed it to another person and tried to __6__ my attention to Ms. Strom. Soon Ms. Strom __7__ what was happening. She put the paper into her pocket and continued teaching. After class, Ms. Strom told us to have some extra homework because of the class' rudeness in creating a(n) __8__ paper about her and passing it around class. The day was over at last. I couldn’t __9__ to get home. As I was leaving, Ms. Strom called my name. My __10__ started to beat quickly as I walked to her. “Yes?”I asked as __11__ as I could. She handed an envelope to me and sai d “Thank you.”I stood there blankly (木然地), not knowing what to do.I opened the envelope:Dear Amy,Thank you for not signing the paper. It truly shows your character. It must need a lot of __12__ to choose not to sign it. It means a great deal to me. Thank you.Ms. StromI was shocked that Ms. Strom __13_ me not signing the paper enough to write a thank-you note. I know how much it meant to her. I will never __14__ this because it had a great effect on my life. I hope I will continue to make choices like thisthat __15__ people instead of making them discouraged.1. A. hands B. ideas C. eyes D. words2. A. answer B. decision C. result D. conclusion3. A. wondered B. guessed C. understood D. imagined4. A. anxious B. happy C. sad D. angry5. A. send B.carry C. take D. pass6. A. bring B. leave C. give D. return7. A. studied B. noticed C. enjoyed D. hated8. A. important B. valuable C. disrespectful D. useless9. A. plan B. expect C. manage D. wait10. A. heart B. name C. opinion D. pocket11. A. kindly B. calmly C. quickly D. loudly12. A. courage B. time C. energy D. advantage13. A. appreciated B. helped C. blamed D. encouraged14. A. do B. support C. face D. forget15. A. turn down B. give up C. work for D. build up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上标号为16—25的相应位置上。

2014-2015学年度上学期高一期末考试试题英语本试题共52小题，满分135分．考试用时120分钟．注意事项：1．答卷前，考生首先检查答题卡是否整洁无缺损，之后务必用0.5毫米黑色字迹的签字笔在答题卡指定位置填写自己的姓名和考生号．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，再选涂其它答案，答案不能答在试卷上．不按要求填涂的，答案无效．3．非选择题必须用0.5毫米黑色字迹的签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上，请注意每题答题空间，预先合理安排；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．不按以上要求作答的答案无效．4．作答选做题时，请先用2B铅笔填涂选做题的题号对应的信息点，再做答．漏涂、错涂、多涂的答案无效．5．考生必须保持答题卡的整洁，考试结束后，将答题卡交回．Ⅰ语言知识及运用 (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1-15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。

Some pa ssengers won’t turn off their mobile phones or iPads during takingoff or landing. It happens on almost every 1 now. It’s time to turn off personal electronic devices when the plane’s door 2 . However, there’s always at least one person who keeps talking, texting, playing, watching or emailing, 3 strict orders to power down during flights.“People have become so 4 to those devices, and a lot of people 5 whether they really need to turn them off,” says an airhostess from Southwest Airlines.Is turning off the devices really 6 in the first place? Lots of passengers have doubted about the 7 of leaving devices on. They think onecall or message or game isn’t going to 8 down the plane.Indeed, there’s no 9 scientific evidence that having devices poweredon during taking off and landing would cause a 10 , only that there is the potential of a problem.In the US, pilots are allowed to use certain electronic devices during takingoff and landing, but if passenger s’ 11 devices are tested at the same time,it may lead to wrong warnings and 12 readings on the aircraft instruments.In some studies, researchers found mobile phones could 13 global-positioning satellite systems or other aircraft systems. Though the effects are 14 slight, they could result in disaster.If even the 15 possibility of disaster exists, it’s better to turn them off during taking off and landing.第二节语法填空（共10小题；每小题1.5分，满分15分）I’m a high school teacher and work in a small school. I will welcome eachstudent at the school gate by 16 (call) their names at least twice every week. Some students are going to leave school for further study 17 they are becoming very sad.Today a girl stopped me and asked 18 I could wait a minute. I said yes and then she handed me 19 envelope. In it was a thank-you note. In the note, she said that she wanted to thank me for talking to her. I remembered asking her 20 she lived and what books she had read. This student was a shy and 21 (silence) person. It was hard 22 her to get used to school life, because there were so many people in one building.Her note meant so much to me and I couldn’t help crying. At the same time,I was very happy because she 23 (spend) time and energy doing things that all students would be able to do. Whenever I think about 24 I will smile.I love teaching and I am so lucky to be able to be a teacher. What a lovely giftI received from this student, which is my great 25 (please).II 阅读理解（共两节，满分50分)第—节阅读理解(共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。

广东省肇庆市端州区2024--2025学年高三上学期第一次检测英语试题一、阅读理解To discover a breathtaking enclave of China’s natural beauty and to immerse yourself in Chinese religious and cultural history, one can find no better place to visit than Dinghu Mountain Scenic Area, which is located in Zhaoqing City, Guangdong Province.Dinghu Mountain National Nature ReserveDinghu Mountain is a nature preserve in China known for its diverse plants, animals, and bird species, including many under state protection. It has been a UNESCO International Man and Biosphere Reserve (生物圈保护区) since 1956, attracting scientists from all over the world.When to GoThe reserve was founded largely for the protection of evergreen rainforests that live off the annual monsoons (雨季). The rains come in April and stay till June, with typhoon season following in July and typically seeing four typhoons before the end of September. This leaves the tourist from October through March to visit if he or she wishes to stay dry.Bring a slicker (防水衣) if it is the wet season and sunscreen if it is summer.WildlifeThe reserve’s plant and animal life vary by altitude, offering numerous mini-habitats. The mountain has evergreen and broadleaf forests that cover 80% of the terrain. Without the annual rains, it would dry up and die, but it’s a towering jungle of life with many medicinal plants. Learn about China’s history and biospheres before arriving to appreciate this national treasure more.Sign up to usBe the first to receive exciting updates, exclusive promotions, and valuable travel tips from our team of experts.1．Which of the following things are not mentioned in the passage?A．Natural situation.B．Natural condition.C．Scenery address.D．Buddhist temple.2．What can we learn about the splendid landscape?A．The mountain can maintain its vitality thanks to the rains.B．The local certification was approved by a Chinese institution.C．It is advisable to hold up a raincoat during the dry season.D．The adequate period to come into the scenery is in July.3．What is the text?A．A geography text B．A tourist newsletter.C．A news announcement.D．A scenery introduction.Nestled in the heart of a mountain village in China’s Guizhou province, there is a unique ecological family farm. It is run by Kevin Cillen, a 28-year-old Belgian who is passionate about the land. With his parents and siblings, they have combined Western farming techniques with local countryside practices to cultivate an “ecological oasis”.The family’s pursuit of their farming dream in China began in 2000, when Kevin’s mother Hetty Cillen visited China as a volunteer for the first time. The enchanting landscapes and rich cultural heritage of Guizhou fascinated her, causing her to make this foreign country her home. Soon after, his father Patrick Jan Cillen joined her. In 2017, the family rented a plot amid the forest to establish an ecological farm where they laid the foundation, leveling the land, sowing pastures and rearing lambs and chicks.The locals have openly embraced the foreigners, inviting them to festivities and celebrating traditional Chinese holidays together. In 2018, Yang Chengkai, a 34-year-old villager, befriended the family, often assisting them on the farm. “The community has embraced this family. Even the vendors at the local market contribute by giving them vegetable scraps for free to feed their livestock.” Yang says.The family farm, hidden within the dense forest, is proof of Guizhou’s ecological progress. The farm practices diversified grass cultivation for high-quality animal feed, uses solar panels for clean energy and employs rainwater harvesting systems for a stable water supply.Living in China, the 28-year-old Belgian has witnessed the country’s remarkable changes.He has also seized the opportunities of the Internet and new media to increase the farm’s visibility. Partnering with Qiu Ye, a social media influencer, he has set up accounts like “Kevin’s family in Guizhou” on various platforms. By sharing their daily lives on the farm and the natural beauty of rural China, their content has quickly earned over 700,000 subscribers.4．What made Hetty Cillen decide to settle in Guizhou?A．The natural beauty.B．V olunteer work.C．A research project.D．Career prospects.5．How does the family farm contribute to ecological progress in Guizhou?A．By creating jobs for the locals.B．By introducing Western equipment.C．By practising sustainable way of farming.D．By facilitating eco-tourism and green living. 6．How has Kevin promoted the farm?A．He has created a website.B．He has set up social media accounts.C．He has it advertised by local villagers.D．He has organized events for subscribers. 7．What might be the best title for the text?A．Belgians Harvest a Good Farm Life in GuizhouB．Belgians Get Enchanted by the Beauty of GuizhouC．Belgians Become a Social Media Influencer in ChinaD．Belgians Live in a Local Chinese CommunityIn the Roman times and throughout the Middle Ages, salt was a valuable commodity (商品), and also served as “white gold”. Soldiers in the Roman army were sometimes paid with salt instead of money. Their monthly allowance was called “salarium” (“sal” being the Latin word for salt). This Latin root can be recognized in the French word “salaire” and it eventually made it into English as the word “salary”.Language is something we take for granted. However, as the example with the word “salary” shows, languages are not static. Like biological species, languages change over time, and sometimes develop to give rise to several descendant (后代) languages. For example, French, Italian, and Spanish are among the languages that have evolved from Latin. And like species, languages can go extinct, too.Given all these similarities, linguists (语言学家) who study the evolution of languagesoften use tools that are similar to those used by evolutionary biologists. One such tool is the reconstruction of a species tree. Such a tree shows the evolutionary history and relationships within a given group of biological species.Using a reconstructed species tree, evolutionary biologists can often infer specific characteristics of ancestral species. Or they can match up common ancestors in the tree with actual fossils that have been found by paleontologists (古生物学家). This allows them to put real dates at various branching points in the tree. Thus, species tree reconstruction is an essential tool in studying biological evolution.A similar technique can be used to study language evolution because languages also evolve and consist of words that can be easily compared. Indeed, linguists have reconstructed entire language trees. And as with species trees, characteristics of ancient ancestral languages can be derived (衍生) from them.Of course, there also are some differences between species evolution and language evolution, each requiring unique additional methods to study them in detail. But, overall, it is fascinating to see how the basic ideas and research tools of language evolution are similar to those of biological evolution.8．Why does the author mention the word “salary” in paragraph 1?A．To illustrate the evolution of language.B．To present the effect of Latin on languages.C．To stress the value of salt in ancient times.D．To show developments in linguistic theory.9．What can we infer from paragraph 2?A．Cultural diversity and biodiversity are linked.B．Species and languages have a lot in common.C．Human-caused mass extinction is accelerating.D．Languages influence and learn from each other.10．What can we know about the reconstructed species tree?A．It is currently in the design stage.B．It facilitates the research of linguists.C．It can be used in a variety of ways.D．It is the first choice for biologists. 11．What can be the best title for the text?A．The Language System Evolved Over TimeB．The Twin Extinctions of Species and LanguagesC．Salt Played a Crucial Role in Early Human HistoryD．From Salt to Salary: Linguists Take a Page from BiologyHere’s a quick quiz. Person A does a favor for you. Person B asks you to do a favor for him. Who do you tend to like more? Surprisingly, the answer is Person B．This quirk (怪癖) of human nature is known as the Ben Franklin Effect.Benjamin Franklin came across the phenomenon in 1736 when serving as a clerk to the Pennsylvania Assembly. A powerful member didn’t care for Franklin and threatened to make life miserable for him. What to do? Instead of winning him over with sweet talk, Franklin asked if he could borrow a rare and valuable book the man owned. This request altered the man’s attitude and paved the way for their friendship. Franklin’s takeaway: “He that has once done you a kindness will be ready to do you another, than he whom you yourself have obliged.”Several studies have confirmed this. But how can we explain the Ben Franklin Effect? Some psychologists refer to cognitive dissonance (失调). It’s difficult to hold two contradictory thoughts at the same time. It makes us uncomfortable. We resolve this tension by changing our mind. “I don’t like Joe, but I am doing him a favor,” we might think. “So maybe I do like him.”While cognitive dissonance explains a lot, it alone doesn’t explain the Ben Franklin Effect. One 2015 study found that it was, rather, the affiliative (亲和的) motive that the requests convey. That is, we humans want to maintain good relations with other humans, and one way to achieve this is by doing favors for others. This explains a lot about altruistic behavior. We like being useful and, by extension, we like those who give us the opportunity to do so. It’s in our genes.Yet there is much we still don’t know about the Ben Franklin Effect. Does it apply equally across cultures? Is there a point beyond which asking a favor makes you less, not more likable? Asking to borrow a book is one thing; asking to borrow a car is another.12．Why does the author mention Benjamin Franklin’s experience?A．To illustrate a dilemma in making choices.B．To suggest a way of striking upfriendships.C．To stress the importance of strategic requests.D．To introduce the origin of the BenFranklin Effect.13．What is a reason for people’s tendency to like those asking for favors?A．Reducing the tension caused by social contact.B．Increasing the chance of getting help in return.C．Avoiding the discomfort from conflicting thoughts.D．Establishing a cooperative community of shared trust.14．What does the underlined word “altruistic” probably mean in paragraph 4?A．Selfless.B．Impolite.C．Aggressive.D．Responsible. 15．What does the author think of the Ben Franklin Effect?A．It makes little sense.B．It applies to most cultures.C．It has situational limitations.D．It has great practical significance.In the dynamic world of fitness, where treadmills (跑步机) hum and weights clink, an emerging concern for sustainability is reshaping the gym experience. 16 ? In this guide, we’ll navigate through key aspects of eco- conscious fitness to help you figure out if your gym is on the sustainable track.●Energy-efficient equipmentA sustainable gym starts with the tools that push your workout. Modern fitness equipment is evolving beyond the pursuit of personal records. 17 . Energy-efficient machines, equipped with regenerative braking systems and smart technology, employ the power generated during workouts to balance electricity consumption.Look at the very tools that power your workout. Are the machines equipped with energy-efficient features? Do they employ the energy generated during workouts to contribute back to the gym’s power needs?● 18The infrastructure (基础设施) of a gym plays a crucial role in its sustainability journey. The use of eco-friendly materials, energy-efficient lighting and strategic design for natural air circulation are key elements of a green fitness space.Explore the infrastructure of your gym. Does the overall design facilitate natural air circulation and use sustainable construction practices?●Waste managementAs you are sweating it out at the gym, what happens to the waste generated? Sustainable fitness spaces prioritise comprehensive waste management systems. 19 .Direct your attention to how your gym manages waste. Are there visible recycling programs for plastics, paper and other common gym materials? Does the gym use eco-friendly cleaning products, demonstrating a commitment to minimising its environmental impact?● Renewable energy integration20 , but sustainable fitness facilities find innovative ways to employ renewable energy. Solar panels and other renewable energy sources are integrated into the gym’s infrastructure to offset power consumption, reducing the facility’s carbon footprint and contributing to a greener energy landscape.Investigate whether your gym is tapping into renewable energy sources. Are there solar panels or wind turbines integrated into the infrastructure?A．This involves recycling programs for common gym materialsB．Green building practicesC．Adaptable fitness facilitiesD．But how do you know if your gym is truly sustainableE．The energy demands of a busy gym can be considerableF．It’s now contributing to the joint efforts for a greener planetG．Are there signs that your workout increases carbon footprint二、完形填空My grandmother suffers from Alzheimer’s disease. Seeing her condition worsen over time, and knowing I could do nothing, created a feeling of 21 in me.As the years passed and my understanding of the disease grew, my frustration turned first to anger, then resignation (顺从), and finally 22 . Though the disease was bound to slowly eat away at her, there were ways to 23 its progress. Every night the two of us would sit together and 24 while my grandmother would count beans. The exercise could help to keep her mentally 25 .Gradually her counting became slower, and she would lose track of things more 26 . While at night we would count beans, in the day I involved myself in studies of 27 . My earlier feelings of despair gave way to 28 ; advances in genetic engineering offered the possibility that one day those like my grandmother could be cured, or 29 from developing Alzheimer’s in the first place.Seeing my grandmother slip away 30 me to take biology courses to learn more about cells, the nervous system, and genetic information, which helped me better understand how our 31 of this disease has grown in the past decade. 32 I began to see new possibilities for preventing diseases like Alzheimer’s.Nowadays, my grandmother cannot count beans anymore and doesn’t 33 me at all. Once she used to tell me stories and I whispered to her all my problems. Now I am a 34 to her. How I wish one day I could contribute to a future, where no child has to watch their grandmother count the 35 they have left together.21．A．regret B．dilemma C．annoyance D．hopelessness 22．A．pity B．sympathy C．tolerance D．acceptance 23．A．stop B．slow C．change D．accelerate 24．A．chat B．sigh C．think D．complain 25．A．strong B．sharp.C．busy D．fresh 26．A．easily B．naturally C．slowly D．painfully 27．A．nursing B．biology C．companion D．psychology 28．A．anxiety B．calmness C．optimism D．indifference 29．A．excused B．defended C．prevented D．separated 30．A．urged B．forced C．required D．motivated 31．A．concern B．sympathy C．knowledge D．experience 32．A．Instantly B．Gradually C．Temporarily D．Accidentally 33．A．miss B．expect C．notice D．recognize 34．A．listener B．follower C．stranger D．watcher 35．A．time B．beans C．money D．stories三、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

肇庆市中小学教学质量评估2015届高中毕业班第一次统一检测题英语本试卷共8页，满分135分。

考试用时120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，将自己所在县（市、区）、姓名、试室号、座位号填写在答题卷上对应位置，再用2B铅笔在准考证号填涂区将考号涂黑．2. 选择题每小题选出答案后，用2B铅笔把答题卷上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案，答案不能写在试卷或草稿纸上．3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卷各题目指定区域内相应的位置上；如需改动，先划掉原来的答案，然后再在答题区内写上新的答案；不准使用铅笔和涂改液．不按以上要求作答的答案无效．I、语言知识及运用（共两节，满分45分）第一节：完型填空（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，并在答题卡上将该项涂黑。

Who hasn’t felt lonely or sad at times? We all have days when we feel down or overwhelmed with life, and we may even go through periods when we have a really 1 case of the blues. If we take a closer look, however, there’s often an identifiable(可识别的) 2 behind those feelings: a loss, an emotional or physical blow of some kind.Grief over the death of a loved one, the end of a relationship, the loss of a job, or some other type of extreme 3 may cause us to feel a bit hopeless and miserable 4 . Having those sad feelings doesn’t 5 mean we’re depressed(抑郁的)-----it might just be our normal and understandable reaction to life’s hardships.So how do we know if we, or someone we care about, are suffering from 6 rather than just ordinary sadness? It’s not always easy to tell the 7 . The short, quick answer is that sadness is a temporary emotion, 8 with a identifiable cause, while depression 9 for longer periods of time; sometimes forever, and often for no 10 reason.Recognizing depression can be extremely 11 . There are many signs of this condition that you may have not considered, and to make it even harder, the signs and symptoms 12 greatly from person to person, as does the severity. Worse, it’s harder to 13 the signs when you are in the midst of depression already, which is why other people often notice before the depressed individual does.If left untreated, depression can worsen, causing the gradual destruction of life and 14 life threatened. Proper diagnosis(诊断) and 15 is the only way to defeat depression -----it won’t go away on its own.1．A. simple B. different C. tough D. comfortable2．A. effect B. cause C. condition D. result3．A. incident B. sorrow C. hardship D. failure4．A. temporarily B. permanently C. gently D. frequently5．A. luckily B. actually C. exactly D. necessarily6．A. loneliness B. depression C. trouble D. bitterness7．A. difference B. relation C. meaning D. effect8．A. never B. sometimes C. usually D. recently9．A. leaves B. lives C. applies D. lasts10．A. acceptable B. valuable C. changeable D. recognizable 11．A. worth B. difficult C. easy D. interesting12．A. vary B. increase C. improve D. decline13．A. judge B. recognize C. notice D. remove14．A. slowly B. lately C. immediately D. finally15．A. treatment B. rest C. service D. comfort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所给词语的正确形式填空，并将答案填写在答题卡上标号为16—25的相应位置上。

广东省肇庆市2013-2014学年高三第一期末质量检测英语试题本试卷共8页，满分135分。

考试用时120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，将自己所在县（市、区）、姓名、试室号、座位号填写在答题卷上对应位置，再用2B铅笔将准考证号涂黑．2. 选择题每小题选出答案后，用2B铅笔把答题卷上对应题目的答案标号涂黑；如需改动，用橡皮擦干净后，再选涂其它答案，答案不能写在试卷或草稿纸上．3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卷各题目指定区域内相应的位置上；如需改动，先划掉原来的答案，然后再在答题区内写上新的答案；不准使用铅笔和涂改液．不按以上要求作答的答案无效．I、语言知识及运用（共两节，满分45分）第一节：完型填空（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，并在答题卡上将该项涂黑。

Many of the world's pollution problems have been caused by the crowding of large groups of people into the cities. Supply for the needs of the people leads to further 1 by industry.If the rapid increase of world 2 continues at the present rate, there mayb e m uc h g r e a t e r3 to human beings.Some scientists 4 of the increase in numbers of people as "population pollution''.About 2,000 years ago, the world population was about 250 million. It 5 a billion in 1850. By 1930 the population was two billion. It is now six billon.It is 6 to double by the year 2020. If the population 7 to grow at the same rate, there will be 25 billion people in the 8 a hundred years from now.Man has been 9 the earth's resources more and more 10 over the past years. Some of them are almost gone.Now many people believe that man's 11 problem is how to control the 12 of the population.The material supplies in the world will be far from enough to 13 the human population if the present rate of increase continues.There is already over-crowding in many cities and 14 in some countries. Many people believe that human survival in the future 15 on the answer to the question.1．A. progress B. pollution C. education D. production2．A. agriculture B. industry C. environment D. population3．A. danger B. harm C. benefit D. hardship4．A. dream B. approve C. rid D. speak5．A. got B. took C. brought D. reached6．A. suggested B. hoped C. expected D. said7．A. continues B. fails C. tries D. means8．A. world B. country C. star D. end9．A. discovering B. using C. digging D. destroying10．A. seriously B. dangerously C. rapidly D. steadily11．A. greatest B. easiest C. lightest D. simplest12．A. existence B. start C. growth D. birth13．A. increase B. starve C. construct D. support14．A. discussion B. starvation C. construction D. argument15．A. depends B. agrees C. saves D. passes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所给词语的正确形式填空，并将答案填写在答题卡上标号为16—25的相应位置上。