2012广东广州二模英语试卷(WORD)
广东省广州市2012中考英语试题含解析
秘密★启用前20l2年广州市初中毕业生学业考试英语一、听力(共两节,满分35分)第一节听力理解(共15小题;每小题2分,.满分30分)每段播放两遍。
各段后有几个小题,各段播放前每小题有5秒钟的阅题时间。
请根据各段播放内容及其相关小题,在5秒钟内从题中所给的A、B、C项中,选出最佳选项,并在答题卡上将该项涂黑。
’听下面一段对话,回答第l~3三个小题。
1.What does the man give the woman?A.A birthday card.B.A birthday present.C.A birthday invitation.2.When will the woman go shopping?A.On Friday.B.On Saturday:C.On Sunday.3.Why does Anne think she is going to the man’s home?A.To discuss his study problems.B.To heIp him with his computer.C.To attend his birthday party.听下面一段对话,回答第4~6三个小题。
4Where does the talk take place?A.At the ticket Office.B.In the football stadium.C.In the street.5.Why does the woman want to buy a ticket?A.To go to see the match.B.T0 give her son a reward.C.To selI it and earn money.6.What does the woman finally decide to do?A.To go to the ticket office.B.T0buytheticketfromtheman.C.T0 return home without a ticket.听下面一段独自,回答第7~9三个小题。
2012白云区九年级英语二模考
2012年广州市白云区中考二模英语试题一、单项选择题:16. I knock on the door but ________ answered.A. somebodyB. nobodyC. anybodyD. everybody17. Now I must go_______ I shall be late for school.A. thoughB. 不填C. butD. or18. ----Could I have a look at the photo of your family, Sam? ----Of course, you _______.A. needB. canC. couldD. must19. It _______ heavily outside. We had better stay at home and watch TV play.A. rainsB. has rainedC. is rainingD. was raining20. I don’t know the boy in white. Could you tell me _________?A. what is his nameB. how old is heC. who is heD. where he is from21. Three years _______ since I came to this school.A. passB. passedC. has passedD. was passed22. It’s very kind ______ you to help me with my English.A. ofB. forC. toD. from23. Though he was very tired, he kept on _______ to finishing line.A. to runB. runsC. runningD. ran24. I’ve decided to go to Shanghai next week. I was wondering _____ you could go with me.A. whenB. thatC. whereD. if25. I have just come to get some medicine _______ my grandfather needs.A. whoB. whomC. whatD. that五、写作:第一节:单词拼写66. The young trees will die if you don’t w_______ them regularly.67 .Boys and girls, please c_________ your answers carefully before you hand in your papers.67 .After a medicine accident, he became b_______ and could not see anything.69. Dad, can you help me to r_______ the MP3? It doesn’t work.70.My mother often says, “ Hard work is the k_______ to success.”第二节:完成句子71.众所周知,吸烟对我们的身体有害。
2012年广东省广州市二模试题(文数,精校版)
图1895x 061162y 116987乙甲 试卷类型:A2012年广州市普通高中毕业班综合测试(二)数 学(文科)2012.4.24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姓名和考生号、试室号、座位号填写在答题卡上.用2B 铅笔将试卷类型(A )填涂在答题卡相应位置上.将条形码横贴在答题卡右上角“条形码粘贴处”. 2.选择题每小题选出答案后,用2B 铅笔把答题卡上对应题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案.答案不能答在试卷上.3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;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组号对应的信息点,再作答.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,将试卷和答题卡一并交回.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.已知集合A 满足{}1,2A ⊆,则集合A 的个数为A .4B .3C .2D .1 2.已知i 为虚数单位,复数1z a =+i ,22z =-i ,且12z z =,则实数a 的值为 A .2 B .2- C .2或2- D .±2或03.已知双曲线221y x m-=的虚轴长是实轴长的2倍,则实数m 的值是 A .4 B .14 C .14- D .4- 4.某中学高三年级从甲、乙两个班级各选出7名学生参加数学竞赛,他们取得的成绩(满分100分)的茎叶图如图1,其中甲班学生的平均分是85,乙班学生成绩的中位数是83,则x +y 的值为 A .7 B .8 C .9 D .105.已知向量()()3,4,6,3,O A O B =-=-,(),1OC m m =+,若//AB OC ,则实数m 的值为 A .32-B .14-C .12D .326.已知函数()f x =e x -e 1x -+ (e 是自然对数的底数),若()2f a =,则()f a -的值为 A .1--e B .-e C .e D . 1+e7. 已知两条不同直线m 、l ,两个不同平面α、β,在下列条件中,可得出αβ⊥的是 A .m l ⊥,//l α,//l β B .m l ⊥,l αβ=,m α⊂C .//m l ,l β⊥,m α⊂D .//m l ,m α⊥,l β⊥ 8.下列说法正确的是A .函数()1f x x=在其定义域上是减函数 B .两个三角形全等是这两个三角形面积相等的必要条件C .命题“x ∃∈R ,210x x ++>”的否定是“x ∀∈R ,210x x ++<”D .给定命题p 、q ,若p q ∧是真命题,则p ⌝是假命题9.阅读图2的程序框图, 该程序运行后输出的k 的值为 A. 9 B. 10 C. 11 D. 12 10.已知实数,a b 满足22430a b a +-+=,函数()sin cos 1f x a x b x =++的最大值记为(),a b ϕ,则(),a b ϕ的最小值为A .1B .2C 1D .3 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.不等式2230x x +-<的解集是 .12.如图3,,A B 两点之间有4条网线连接,每条网线能通过的最大信息量分别为1,2,3,4.从中任取两条网线,则这两条网线通过的最大信息量之和为5的概率是 .13.已知点P 是直角坐标平面xOy 上的一个动点,OP =(点O 为坐标原点),点()1,0M -,则cos OPM ∠的取值范围是 .(二)选做题(14~15题,考生只能从中选做一题)14.(坐标系与参数方程选做题)在极坐标系中,若等边三角形(ABC 顶点A ,,B C 按顺时针方向排列)的顶点,A B 的极坐标分别为72,,2,66ππ⎛⎫⎛⎫⎪ ⎪⎝⎭⎝⎭,则顶点C 的极坐标为 .15.(几何证明选讲选做题)如图4,AB 是圆O 的直径,延长AB 至C ,使2BC OB =,CD 是圆O 的切线,切点为D ,连接AD ,BD ,则ADBD的值为 .三、解答题:本大题共6小题,满分80分.解答须写出文字说明、明过程和演算步骤. 16. (本小题满分12分)已知函数()()()cos sin cos sin f x x x x x =+-. (1)求函数()f x 的最小正周期; (2)若0,022ππαβ<<<<,且12,2323f f αβ⎛⎫⎛⎫==⎪ ⎪⎝⎭⎝⎭,求()sin αβ-的值. 17.(本小题满分12分)某工厂欲将这三种食物混合成100kg 的混合食物,设所用食物甲、乙、丙的重量分别为x kg 、y kg 、z kg. (1) 试以x 、y 表示混合食物的成本P ;(2)若混合食物至少需含35000单位维生素C 及40000单位维生素D ,问x 、y 、z 取什么值时,混合食物的成本最少? 18. (本小题满分14分)某建筑物的上半部分是多面体MN ABCD -, 下半部分是长方体1111ABCD A B C D -(如图5). 该建筑物的正(主)视图和侧(左)视图如图6, 其中正(主)视图由正方形和等腰梯形组合而成,侧(左)视图由长方形和等腰三角形组合而成.(1)求线段AM 的长;(2)证明:平面ABNM ⊥平面CDMN ;(3)求该建筑物的体积.19.(本小题满分14分)已知对称中心为坐标原点的椭圆1C 与抛物线22:4C x y =有一个相同的焦点1F ,直线:2l y x m =+与抛物线2C 只有一个公共点. (1)求直线l 的方程;(2)若椭圆1C 经过直线l 上的点P ,当椭圆1C 的长轴长取得最小值时,求椭圆1C 的方程及点P 的坐标.20.(本小题满分14分)已知数列{}n a 的前n 项和为n S ,对任意n ∈N *,都有0n a >且()()122n n n a a S -+=,令1ln ln n n na b a +=. (1)求数列{}n a 的通项公式;(2)使乘积12k b b b ⋅⋅⋅⋅⋅⋅为整数的(k k ∈N *)叫“龙数”,求区间[]1,2012内的所有“龙数”之和;(3)判断n b 与1n b +的大小关系,并说明理由.21.(本小题满分14分) 已知函数()21ln 2f x x ax x =-+,a ∈R . (1)求函数()f x 的单调区间;(2)是否存在实数a ,使得函数()f x 的极值大于0?若存在,求a 的取值范围;若不存在,说明理由.2012年广州市普通高中毕业班综合测试(二)数学(文科)试题参考答案及评分标准一、选择题:本大题主要考查基本知识和基本运算.共10小题,每小题5分,满分50分.二、填空题:本大题主要考查基本知识和基本运算.本大题共5小题,考生作答4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.11.()3,1- 12. 13 13.⎤⎥⎣⎦14.23π⎛⎫ ⎪⎝⎭ 15.说明:第14题答案可以是22(3k k ππ⎛⎫+∈ ⎪⎝⎭Z ) 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)(本小题主要考查三角函数的图象与性质、二倍角的余弦、同角三角函数关系、两角差的正弦等知识, 考查化归与转化的数学思想方法和运算求解能力) (1)解:∵()()()cos sin cos sin f x x x x x =+-22cos sin x x =-cos2x =, …………… 4分∴函数()f x 的最小正周期为22T ππ==. …………… 6分 (2)解:由(1)得()cos2f x x =. ∵12,2323f f αβ⎛⎫⎛⎫== ⎪ ⎪⎝⎭⎝⎭, ∴12cos ,cos 33αβ==. ∵0,022ππαβ<<<<,∴sin 3α==,sin β==. ……………10分∴()sin sin cos cos sin αβαβαβ-=- ……………11分21333=-=……………12分 17.(本小题满分12分)(本小题主要考查线性规划等知识, 考查数据处理能力、运算求解能力和应用意识) (1)解:依题意得100,543.x y z P x y z ++=⎧⎨=++⎩…………… 2分由100x y z ++=,得100z x y =--,代入543P x y z =++,Q 1P 1Q PONMD CBAB 1C 1D 1A1得3002P x y =++. …………… 3分(2) 解:依题意知x 、y 、z 要满足的条件为0,0,0,30050030035000,70010030040000.x y z x y z x y z ≥≥≥⎧⎪++≥⎨⎪++≥⎩……… 6分把100z x y =--代入方程组得0,0,1000,250,25.x y x y x y y ≥≥⎧⎪--≥⎪⎨-≥⎪⎪≥⎩…… 9分如图可行域(阴影部分)的一个顶点为A ()37.5,25.… 10分 让目标函数2300x y P ++=在可行域上移动,由此可知3002P x y =++在A ()37.5,25处取得最小值. ………∴当37.5x =(kg),25y =(kg),37.5z =(kg)时, 混合食物的成本最少. ……… 12分18. (本小题满分14分)(本小题主要考查空间线面关系、几何体的三视图、几何体的体积等知识, 考查数形结合、化归与转化的数学思想方法,以及空间想象能力、推理论证能力和运算求解能力) (1)解:作MO ⊥平面ABCD ,垂足为O ,连接AO ,由于AB ⊂平面ABCD ,故MO AB ⊥.作MP AB ⊥,垂足为P ,连接PO ,又MOMP M =,且MO ⊂平面MPO ,MP ⊂平面MPO ,∴AB ⊥平面MPO . 由题意知1,MO PO AP ===14AA =,2AD =,…… 2分 在R t △POM中,PM == …………… 3分 在R t △APM中,AM ==, …………… 4分∴线段AM…………… 5分(2)解:延长PO 交CD 于点Q ,连接MQ ,由(1)知AB ⊥平面MPO . ∵MQ ⊂平面MPO ,∴AB ⊥MQ .∵//MN AB ,∴MN MQ ⊥. ……… 6分 在△PMQ中,2MQ MP PQ ===,∵2224MP MQ PQ +==,∴MP MQ ⊥. …………… 7分Q 1OQPN M D C BAB 1C 1D 1A 1∵,MP MN M MP =⊂平面ABNM ,MN ⊂平面ABNM ,∴MQ ⊥平面ABNM . ∵MQ ⊂平面CDMN ,∴平面ABNM ⊥平面CDMN .… 9分 (3)解法1:作1//NP MP 交AB 于点1P ,作1//NQ MQ 交CD 于点1Q , 由题意知多面体MN ABCD -可分割为两个等体积的四棱锥M APQD -和11N P BCQ -和一个直三棱柱11MPQ NPQ -.四棱锥M APQD -的体积为113V AP AD MO =1212133=⨯⨯⨯=, ………… 10分 直三棱柱11MPQ NPQ -的体积为2112222V MP MQ MN ==⨯=,…11分 ∴多面体MN ABCD -的体积为122V V V =+2102233=⨯+=. …………… 12分长方体1111ABCD A B C D -的体积为3142432V AB BC AA ==⨯⨯=. ……… 13分∴建筑物的体积为31063V V +=. ……… 14分 解法2:如图将多面体MN ABCD -补成一个直三棱柱1ADQ BCQ -,依题意知1111AQ DQ BQ CQ MQ NQ ======,2AD =. 多面体MN ABCD -的体积等于直三棱柱1ADQ BCQ -的体积 减去两个等体积的三棱锥M ADQ -和1N BCQ -的体积. ∵2224AQ DQ AD +==,∴90AQD ︒∠=.直三棱柱1ADQ BCQ -的体积为1114422V AQ DQ AB ==⨯=, (10)分三棱锥M ADQ -的体积为2V =11111132323AQ DQ MQ =⨯=. … 11分∴多面体MN ABCD -的体积为V =122102433V V -=-=. …… 12分长方体1111ABCD A B C D -的体积为3142432V AB BC AA ==⨯⨯=. ……… 13分 ∴建筑物的体积为31063V V +=. ……………… 14分 19.(本小题满分14分)(本小题主要考查直线、椭圆、抛物线等知识, 考查数形结合、化归与转化、函数与方程的数学思想方法,以及推理论证能力和运算求解能力) (1)解法1:由22,4y x m x y=+⎧⎨=⎩消去y ,得2840x x m --=. …………… 1分∵直线l 与抛物线2C 只有一个公共点,∴28440m ∆=+⨯=,解得4m =-.… 3分 ∴直线l 的方程为24y x =-. …………… 4分 解法2:设直线l 与抛物线2C 的公共点坐标为()00,x y , 由214y x =,得'12y x =, ∴直线l 的斜率0'012x x k yx ===.依题意得0122x =,解得04x =. ………… 2分 把04x =代入抛物线2C 的方程,得04y =. ∵点( ∴424m =⨯+,解得4m =-. ∴直线l 的方程为y (2)解法1:∵抛物线2C 的焦点为()10,1F ,依题意知椭圆1C 的两个焦点的坐标为()(120,1,0,1F F - 设点()10,1F 关于直线l 的对称点为()'100,Fx y , 则0000121,12 4.22y x y x -⎧⨯=-⎪⎪⎨+⎪=⨯-⎪⎩…………… 7分解得004,1.x y =⎧⎨=-⎩ ∴点()'14,1F -. ∴直线l 与直线'12:1F F y =-的交点为03,12P ⎛⎫-⎪⎝⎭由椭圆的定义及平面几何知识得:椭圆1C 的长轴长'12122a PF PF PF PF =+=+'1F ≥ 其中当点P 与点0P 重合时,上面不等式取等号.∴当2a =时,椭圆1C 的长轴长取得最小值,其值为4此时椭圆1C 的方程为22143y x +=,点P 的坐标为3,2⎛- ⎪⎝⎭. …………… 14分 解法2:∵抛物线2C 的焦点为()10,1F ,依题意知椭圆1C 的两个焦点的坐标为()()120,1,0,1F F -. …………… 5分设椭圆1C 的方程为()2222111y x a a a +=>-, 由222224,11y x y x aa =-⎧⎪⎨+=⎪-⎩消去y , 得()()()()22222541611160a x a x a a ---+--=.(*) …………… 7分由()()()()222221614541160a a a a ⎡⎤∆=-----≥⎣⎦, …………… 8分得425200a a -≥. 解得24a ≥. ∴2a ≥. …………… 11分 ∴当2a =时,椭圆1C 的长轴长取得最小值,其值为4. …………… 12分此时椭圆1C 的方程为22143y x +=. 把2a =代入(*)方程,得3,12x y ==-, ∴点P 的坐标为3,12⎛⎫-⎪⎝⎭. …………… 14分 20.(本小题满分14分)(本小题主要考查数列、不等式等知识, 考查化归与转化、分类与整合的数学思想方法,以及抽象概括能力、推理论证能力、运算求解能力和创新意识) (1)解:由于()()122nn na a S -+=222n n a a +-=,当1n =时,2111122a a a S +-==, 整理得21120a a --=,解得12a =或11a =-. ∵0n a >, ∴12a =. …………… 2分 当2n ≥时,1n n n a S S -=-22112222n n n n a a a a --+-+-=-, …………… 3分化简得22110n n n n a a a a -----=, ∴()()1110n n n n a a a a --+--=.∵0n a >, ∴11n n a a --=. …………… 4分∴数列{}n a 是首项为2,公差为1的等差数列.∴()211n a n n =+-=+. 5分 (2)解:∵1ln ln n n n a b a +==()()ln 2ln 1n n ++, ∴12k b b b ∙∙⋅⋅⋅∙()()ln 2ln 3ln 4ln 2ln 3ln 1k k +=+ ()ln 2ln 2k +==()2log 2k +.… 6分令()2log 2k +m =,则22(mk m =-为整数), …………… 7分由1222012m ≤-≤,得322014m≤≤, ∴2,3,4,,10m =.∴在区间[]1,2012内的k 值为231022,22,,22---, …………… 8分其和为()()()2310222222-+-++- ()231022229=+++-⨯()292121812⨯-=-- 2026=. …………… 10分(3)解法1:∵()()()()ln 2ln 11ln 1ln 1n n n b n n ++=>=++ ∴()()()()1ln 3ln 2ln 2ln 1n n n n bn b n +++=++()()()2ln 3ln 1ln 2n n n ++=+ ()()()22ln 3ln 12ln 2n n n +++⎡⎤⎢⎥⎣⎦<+ ()()()22ln 314ln 2n n n ++⎡⎤⎣⎦=+ ()22231ln 24ln 2n n n ⎡⎤+++⎛⎫⎢⎥⎪⎝⎭⎢⎥⎣⎦<+ 1=. ∴1n nb b +<. … 14分解法2:∵()()()()ln 2ln 11ln 1ln 1n n n b n n ++=>=++, ∴()()()()1ln 3ln 2ln 2ln 1n n n n b b n n +++-=-++()()()()()2ln 3ln 1ln 2ln 2ln 1n n n n n ++-+=++()()()()()22ln 3ln 1ln 22ln 2ln 1n n n n n +++⎡⎤-+⎢⎥⎣⎦<++ ()()()()()22ln 31ln 22ln 2ln 1n n n n n ++⎡⎤-+⎢⎥⎣⎦=++ ()()()222131ln ln 222ln 2ln 1n n n n n ⎡⎤+++⎛⎫-+⎢⎥ ⎪⎝⎭⎢⎥⎣⎦<++0=.∴1n n b b +<. …………… 14分解法3:设()()()ln 12ln x f x x x +=≥, 则()()'211ln ln 11ln x x x x f x x-++=.……… 11分 ∵2x ≥,∴()()1111ln ln 1ln ln 101x x x x x x x x-+<-+<+. ∴()'0fx <. ∴函数()f x 在[)2,+∞上单调递减.∵n ∈N *,∴212n n ≤+<+. ∴()()21f n f n +<+.∴()()()()ln 3ln 2ln 2ln 1n n n n ++<++. ∴1n n b b +<. …………… 14分 21.(本小题满分14分)(本小题主要考查函数和方程、导数、函数的极值等知识, 考查函数与方程、分类与整合、化归与转化的数学思想方法,以及抽象概括能力、推理论证能力和运算求解能力)(1)解:函数()f x 的定义域为()0,+∞. ()2111ax x f x ax x x--'=-+=-.… 2分 ① 当0a =时,()1x f x x+'=,∵0,x > ∴()'0f x > ∴ 函数()f x 单调递增区间为()0,+∞. …………… 3分② 当0a ≠时,令()0f x '=得210ax x x---=, ∵0,x >∴210ax x --=. ∴14a ∆=+.(ⅰ)当0∆≤,即14a ≤-时,得210ax x --≤,故()0f x '≥, ∴ 函数()f x 的单调递增区间为()0,+∞. …………… 4分(ⅱ)当0∆>,即14a >-时,方程210ax x --=的两个实根分别为112x a =,212x a+=. …………… 5分 若104a -<<,则120,0x x <<,此时,当()0,x ∈+∞时,()0f x '>. ∴函数()f x 的单调递增区间为()0,+∞, 若0a >,则120,0x x <>,此时,当()20,x x ∈时,()0f x '>,当()2,x x ∈+∞时,()0,f x '<∴函数()f x 的单调递增区间为10,2a ⎛⎫+ ⎪ ⎪⎝⎭,单调递减区间为12a ⎛⎫+∞ ⎪ ⎪⎝⎭. 综上所述,当0a >时,函数()f x 的单调递增区间为⎛ ⎝⎭,单调递减区间为⎫+∞⎪⎪⎝⎭; 当0a ≤时,函数()f x 的单调递增区间为()0,+∞,无单调递减区间. ………… 8分(2)解:由(1)得当0a ≤时,函数()f x 在()0,+∞上单调递增,故函数()f x 无极值;当0a >时,函数()f x 的单调递增区间为⎛ ⎝⎭,单调递减区间为⎫+∞⎪⎪⎝⎭;则()f x 有极大值,其值为222221()ln 2f x x ax x =-+,其中2x =. … 10分 而22210ax x --=,即2221ax x =+,∴2221()ln 2x f x x -=+. … 11分 设函数1()ln (0)2x h x x x -=+>,则'11()02h x x =+>, …………… 12分 则1()ln 2x h x x -=+在()0,+∞上为增函数.又(1)0h =,则()0h x >等价于1x >. ∴2()f x =221ln 2x x -+0>等价于21x >. …………… 13分 即在0a >时,方程210ax x --=的大根大于1,设2()1x ax x ϕ=--,由于()x ϕ的图象是开口向上的抛物线,且经过点(0,1)-,对称 轴102x a=>,则只需(1)0ϕ<,即110a --<解得2a <,而0a >, 故实数a 的取值范围为()0,2. ……………… 14分。
2012年广东省广州市中考英语试卷-答案
广东省广州市2012年初中毕业生学业考试英语答案解析一、听力第一节听力理解1.【答案】C2.【答案】B3.【答案】B4.【答案】C5.【答案】B6.【答案】A7.【答案】B8.【答案】B9.【答案】C10.【答案】A11.【答案】B12.【答案】A13.【答案】C14.【答案】A15.【答案】C第二节听取信息A.【答案】English BookB.【答案】1500C.【答案】Copy your workD.【答案】FunnyE.【答案】March二、语言知识及运用第一节单项选择16.【答案】C【解析】根据“you were talking about”可知这一部分是做book的定语,指昨天谈论的这本书,表特指,联系冠词的用法表特指应该用定冠词the。
【提示】句意:—这本书是昨天你谈论的那本吗?—是的,非常感谢你。
【考点】定冠词17.【答案】A【解析】根据“asked her…the bag”和“it was too expensive”可知这个书包太贵了,所以要求她不要买这个书包,在这里考查了固定结构ask…to do sth的否定形式,直接在不定式前加not。
【提示】句意:他要求她不要买这个书包,因为它的价格太贵了。
【考点】不定式18.【答案】B【解析】在宾语从句中要用陈述语序,也就是主谓宾的语序。
根据“wonder…it”以及四个选项,可知空格处需要一个宾语从句作wonder的宾语,从句中要用陈述语序。
另外根据“surprising”可知对他取得高分感到诧异,所以想知道是如何取得高分的,因此用how引导宾语从句。
【提示】句意:—他得了这么高的分数真是让人吃惊。
—是的。
我很想知道他是怎么做到的。
【考点】宾语从句19.【答案】C【解析】turn up调高;get up起床;give up放弃;grow up长大。
因为“although you may meet some difficulties”意思为虽然你可能会遇到一些麻烦,可知是让你不要放弃。
2012年广州二模英语试题
2012年广州二模英语试题2012.4本试卷共12页,三大题,满分135分。
考试用时120分钟。
I语言知识及应用(共两节,满分45分)第一节完形填空(共小题;每小题2分,满分30分)阅读下面短文,掌握其大意,然后从下列各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
I woke up this morning with a fright !There appeared to be a mouse in my bed tickling my nose and 1 _scratching me. It had to be a mouse, for those tiny sharp little nails were scratching me all across my 2 __ .It couldn't have been a(n) 3 as I didn't own any pets;it couldn't have been a rat, because if what I had read about rats was 4 ,their sharp teeth could 5 __their way through solid stone. They do this because their front teeth never stop growing and this is the only way to keep them 6 .I didn't dare to open my eyes and face the 7 __of the disgusting mouse in the bed with me. I felt so dirty and8 I didn't want to change my position cither, 9 __the mouse would slide onto other areas of my body, which would 10 __give me horrible dreams for years to come!Despite my fears, I finally decided to swiftly 11 __ the mouse away. But it 12 __!I did it again and again and it kept coming back, every single time.There was no way out. I had to face my enemy. I took a breath, gathered my 13 _ and slowly opened my eyes. To my relief, I saw something far 14 __than a mouse and it all came back to me.I had put my baby daughter Rebecca into bed beside me after her first bottle in the morning !That also reminded me: I needed to trim (修剪)her 15 __.1.A. warmly B. lightly C. wildly D. thoroughly2.A. foot B. hand C. stomach D. face3.A. mouse B. insect C. cat D, fly4.A. true B. suitable C. interesting D. clear5.A. fight B. pull C. carve D. wind6.A. strong B. sharp C. slim D. short7.A. horror B. thought C. risk D. cost8.A. tired B. stupid C. uncomfortable D. disappointed9.A. hoping B. fearing C. assuming D. doubting10.,A. gradually B. temporarily C. surely D. hardly11.,A..throw B. brush C. keep D. send12,.A. returned B. repeated C. dropped D. stayed13..A. memories B. thoughts C. energy D. courage14.A.. softer B. cuter C .uglier D. worse15.A.. hair B. feet C. nails D. fingers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。
2012广东广州二模英语试卷(纯word文档)
试卷类型:B 2012年广州市普通高中毕业班综合测试(二)英语本试卷共12页,三大题,满分135分。
考试用时120分钟。
注意事项:1. 答卷前,考生务必用2B铅笔在“考生号”处填涂考生号。
用黑色字迹的钢笔或签字笔将自己所在的市、县/区、学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B铅笔将试卷类型(B)填涂在答题卡相应位置上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选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3. 非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答卷纸各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液不按以上要求作答的答案无效。
4. 考生必须保持答题卡的整洁。
考试结束后,将试卷和答题卡一并交回。
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。
I woke up this morning with a fright!There appeared to be a mouse in my bed tickling my nose and 1 ____ scratching me. It had to be a mouse, for those tiny sharp little nails were scratching me all across my 2 ____.It couldn't have been a(n) 3 ____ as I didn't own any pets;it couldn't have been a rat, because if what I had read about rats was 4 ____,their sharp teeth could 5 ____their way through solid stone. They do this because their front teeth never stop growing and this is the only way to keep them 6 ____.I didn't dare to open my eyes and face the 7 ____of the disgusting mouse in the bed with me. I felt so dirty and 8 I didn't want to change my position cither, 9 ____the mouse would slide onto other areas of my body, which would 10 ____give me horrible dreams for years to come!Despite my fears, I finally decided to swiftly 11 the mouse away. But it 12 __!I did it again and again and it kept coming back, every single time.There was no way out. I had to face my enemy. I took a breath, gathered my 13 ____and slowly opened my eyes. To my relief, I saw something far 14 ____than a mouse and it all came back to me.I had put my baby daughter Rebecca into bed beside me after her first bottle in the morning!That also reminded me: I needed to trim (修剪)her _15___1. A. warmly B. lightly C. wildly D. thoroughly2. A. foot B. hand C. stomach D. face3. A. mouse B. insect C. cat D. fly4. A. true B. suitable C. interesting D. clear5. A. fight B. pull C. carve D. wind6. A. strong B. sharp C. slim D. short7. A. horror B. thought C. risk D. cost8. A. tired B. stupid C. uncomfortable D. disappointed9. A. hoping B. fearing C. assuming D. doubting10. A. gradually B. temporarily C. surely D. hardly11. A. throw B. brush C. keep D. send12. A. returned B. repeated C. dropped D. stayed13. A. memories B. thoughts C. energy D. courage14. A. softer B. cuter C. uglier D. worse15. A. hair B. feet C. nails D. fingers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。
2012广州二模英语答案分析
43. A. 此题B与C选项可从第四段第一 句得到验证。D选项可从第二段“So a person’s first language affects their learning of a second language.”得到验 证。
44. D。本文提出影响二语习得有三个 因素。第二段说个体的第一语言影响 第二语言的学习,为因素1.第四段提 到老师和语言学习的环境在二语习得 中扮演重要的角色,为因素2;也提 到学习者的学习动机的重要作用,为 因素3. 故此题选D。意思是,人们的 背景和学习条件决定了学习第二语言 的难易程度。因此,世界上没有哪门 语言是最难学的。
(8) uncomfortable. “不舒服的”, 由上文 的disgusting mouse得出。也可以从因 为dirty感觉到不舒服,此处属于词语同 现。 (9) fearing. “害怕”, 由上文的I didn’t dare to和下文的horrible dreams得出。 此处属于词语同现。 (10) surely. 从下文的give me horrible dreams for years to come可知要排除 hardly, temporarily, 对比surely和 gradually, 显然surely更符合语境。
45. B。从第一段第一句During lectures, my students…可知,作者是 老师。而从文章讨论的主题看,作者 是一位语言老师。
信息匹配 46. D. 匹配词为“study subjects” “the weekend” 47. C. 匹配词为“computer skills” 48. A 匹配词为“languages” 49. E 匹配词为“office” “…only attend classes when not caring for her daughter” 50. B 匹配词为“study subjects” “weekday evenings”
2012广州市英语中考试题word版
秘密★启用前20l2年广州市初中毕业生学业考试英语一、听力(共两节,满分35分)第一节听力理解(共15小题;每小题2分,.满分30分)每段播放两遍。
各段后有几个小题,各段播放前每小题有5秒钟的阅题时间。
请根据各段播放内容及其相关小题,在5秒钟内从题中所给的A、B、C项中,选出最佳选项,并在答题卡上将该项涂黑。
’听下面一段对话,回答第l~3三个小题。
1.What does the man give the woman?A.A birthday card.B.A birthday present.C.A birthday invitation.2.When will the woman go shopping?A.On Friday.B.On Saturday:C.On Sunday.3.Why does Anne think she is going to the man’s home?A.To discuss his study problems.B.To heIp him with his computer.C.To attend his birthday party.听下面一段对话,回答第4~6三个小题。
4Where does the talk take place?A.At the ticket Office.B.In the football stadium.C.In the street.5.Why does the woman want to buy a ticket?A.To go to see the match.B.T0 give her son a reward.C.To selI it and earn money.6.What does the woman finally decide to do?A.To go to the ticket office.B.T0buytheticketfromtheman.C.T0 return home without a ticket.听下面一段独自,回答第7~9三个小题。
2012年广州市一模英语试题word 含答案
2012年广州市普通高中毕业班综合测试(一)英语2012.3 本试卷共12页,三大题,满分135分。
考试用时120分钟。
注意事项:1.答卷前,考生务必用2B格笔在“考生号”处填涂考生号。
用黑色字迹的钢笔或签字笔将自己所在的市、县/区、学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B铅笔将试卷类型(A)填涂在答题卡相应位置上。
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选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3.非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答卷纸各题目指定区城内相应位置上;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。
不按以上要求作答的答案无效。
4.考生必须保持答题卡的整洁。
考试结束后,将试卷和答题卡一并变回。
(资料来源:备课吧/)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。
The more accessible a company's services are, the more business it will do. Why are the same ___1___ not applied when it comes to Internet websites then? A Hong Kong study has found that the local sites of two leading ___2___, McDonald's and Motorola, are the most user-unfriendly of the 30 websites tested. The lack of ___3___ means they are not only losing customers, but ___4___ to meet their social responsibilities.In an ever-more Internet-connected world, ___5___ are as important as physical shops or offices. They are ___6___ used as a way of banking, shopping and getting news. This is especially so for the disabled, who find it ___7___ to shop on-line than go to a store in person. A website that does not let them do this is the same as having a(n) "___8___" sign on a door.In Hong Kong, it is ___9___ not to provide the disabled with access to schools and buildings, but at present there are no specific laws on Internet accessibility. However, companies are morally responsible for ensuring that their websites can be ___10___ by people who are visually disabled or have difficulty walking around. Ideals for design have long been put forward by the World Wide Web Consortium, a global community working on open standards to ___11___ accessibility and development.Computer technology is ___12___ fast and it is now much easier to create websites that are ___13___ for all people, sighted or disabled. Companies should ensure that the designers of their websites ___14___ guidelines for accessibility. We should try to make our city as ___15___ as possible, on-line and off.1. A. data B. principles C. experiences D. technologies2. A. companies B. products C. stores D. factories3. A. power B. study C. attraction D. access4. A. deciding B. attempting C. failing D. stopping5. A. computers B. hotlines C. signals D. websites6. A. increasingly B. possibly C. extremely D. randomly7. A. cheaper B. safer C. easier D. quicker8. A. waiting B. sale C. open D. closed9. A. unreasonable B. illegal C. unimportant D. impolite10. A. found B. read C. known D. created11. A. permit. B. discover C. start D. ensure12. A. weakening B. dropping C. changing D. flying13. A. wonderful B. usable C. harmless D. profitable14. A. follow B. write C. break D. ignore15. A. beautiful B. wealthy C. accessible D. respectable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。
2012广州二模(理综)word版含标答
试卷类型:B 广东省广州市2012届高三毕业班4月综合测试(二)理科综合2012.4本试卷卷共11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2B铅笔在“考生号”处填涂考生号。
用黑色字迹的钢笔或签字笔将自己所在的市、县/区、学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B铅笔将试卷类型(B)填涂在答题卡相应位置上。
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选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掸原来的答案,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. 考生必须保持答题卡的整洁。
考试结束后,将试卷和答题卡一并交回。
一、单项选择题:本题包括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,选对的得4分,选错或不答的得0分。
1、下列关于生物体内化合物的说法,正确的是A.N是组成细胞内各种有机物的必需元素B.糖类都是细胞内的能源物质C.所有细胞中都含有蛋白质和磷脂D.人的肝细胞和神经细胞中的mRNA反转录形成的cDNA没有差别2、下列关于生命活动的说法,合理的是A.离开细胞的病毒依然能增殖B.植物激素控制植物的所有生命活动C.骨骼肌细胞核S型肺炎双球菌都能合成多糖D.细胞长大过程中核糖体的数量增加,物质交换效率增强3、叶绿体和线粒体的相同点是①可利用光学显微镜观察②水作为生理功能的一种原料③通过囊状结构增大膜面积④可通过转录和翻译控制某些蛋白质的合成⑤产生的ATP可用于各种生命活动A.①②③ B.①②④ C.①②④⑤ D.②③④⑤4、某生物的基因型是AaBb,右图是其体内一个正在进行减数分裂的细胞示意图。
下列说法正确的是A.该细胞含有一个染色体组B.该细胞肯定发生过交叉互换和染色体变异C.A与a的分离发生在减数第一次分裂D.减数第二次分裂出现差错可能产生基因型为Aabb的细胞5、下列有关物质的提取和分离的说法,错误的是A.提取洋葱DNA时,需用洗涤剂瓦解细胞膜B.直接用差速离心法可分离动物细胞内的各种物质C.可用电泳法将蛋白质、DNA、RNA等食物大分子分离D.提取和分离叶绿体色素所用的试剂有无水乙醇、SiO2、CaCO3、层析液6、下列叙述不合理的的是A.萌发的种子可作为诱变育种的材料 B.植物分生区细胞可用于培育脱毒苗C.带芽的枝条可提高扦插的成活率 D.乳腺细胞可作为转基因动物的受体细胞7. 下列说法正确的是A. 乙烯和苯都能与溴水发生反应B. 溴乙烷和乙醇都能发生消去反应C. 淀粉和蛋白质均可作为生产葡萄糖的原料D. 乙酸乙酯和纤维索乙酸酯均可水解生成乙醇8. 设n A为阿伏加德罗常数的数值,下列说法正确的是(相对原子质量:H 1 C 12)A. 常温下,3Og C2H6中含有4n A个C-H键B. 1mol Cl2与足量NaOH溶液反应,转移2n A个电子C. 溶液中含有0.2n A个Na+D. 标准状况下,22.4LCO和CO2的混合气体中含有n A个碳原子9. 下列离子方程式正确的是A. 向烧碱溶液中加入铝片:B. 向小苏打溶液中加入醋酸:‘.C. 向HI溶液中加入Fe(OH)3固体:D. 向MgSO4溶液中加入Ba(OH)2溶液:.10. 下列实验能达到预期目的的是A. 用Ba(NO3)2溶液鉴别 Na2SO3和 Na2SO4B. 除去苯中少量苯酚,向混合物中加人足量的NaOH溶液后过滤C. 将碘水和CCl4倒入分液漏斗,振荡后静置,可将碘萃取到CCl4中D. 取0.1mol FeCl3溶于蒸馏水,用1OOmL容量瓶定容后得到溶液11 对于溶液.下列说法正确的jA. 溶液中存在电离平銜:B. 向溶液中滴加少量浓硫酸.均增大C. 如水稀释.溶液中所有离子的浓度均减小D. 溶液中:12. 短周期元素甲、乙、丙、丁的原子序敉依次增大。
广东省广州市2012年普通高中毕业班综合测试英语试题
广东省广州市2012年普通高中毕业班综合测试(一)(英语)(广东一摸)(2012.03)本试卷共12页,三大题,满分135分。
考试用时120分钟。
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。
The more accessible a company's services are, the more business it will do. Why are the same ___1___ not applied when it comes to Internet websites then? A Hong Kong study has found that the local sites of two leading ___2___, McDonald's and Motorola, are the most user-unfriendly of the 30 websites tested. The lack of ___3___ means they are not only losing customers, but ___4___ to meet their social responsibilities.In an ever-more Internet-connected world, ___5___ are as important as physical shops or offices. They are ___6___ used as a way of banking, shopping and getting news. This is especially so for the disabled, who find it ___7___ to shop on-line than go to a store in person. A website that does not let them do this is the same as having a(n) "___8___" sign on a door.In Hong Kong, it is ___9___ not to provide the disabled with access to schools and buildings, but at present there are no specific laws on Internet accessibility. However, companies are morally responsible for ensuring that their websites can be ___10___ by people who are visually disabled or have difficulty walking around. Ideals for design have long been put forward by the World Wide Web Consortium, a global community working on open standards to ___11___ accessibility and development.Computer technology is ___12___ fast and it is now much easier to create websites that are ___13___ for all people, sighted or disabled. Companies should ensure that the designers of their websites ___14___ guidelines for accessibility. We should try to make our city as ___15___ as possible, on-line and off.1. A. data B. principles C. experiences D. technologies2. A. companies B. products C. stores D. factories3. A. power B. study C. attraction D. access4. A. deciding B. attempting C. failing D. stopping5. A. computers B. hotlines C. signals D. websites6. A. increasingly B. possibly C. extremely D. randomly7. A. cheaper B. safer C. easier D. quicker8. A. waiting B. sale C. open D. closed9. A. unreasonable B. illegal C. unimportant D. impolite10. A. found B. read C. known D. created11. A. permit. B. discover C. start D. ensure12. A. weakening B. dropping C. changing D. flying13. A. wonderful B. usable C. harmless D. profitable14. A. follow B. write C. break D. ignore15. A. beautiful B. wealthy C. accessible D. respectable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。
2012 年广州一模英语答案(word文档)
2012 年广州市普通高中毕业班综合测试(一)英语参考答案1. B2. A3. D4. C5. D6. A7. C8. D9. B 10. B11. D 12. C 13. B 14. A 15. C26. C 27. D 28. C 29. A 30. B 31. D 32. C 33. A 34. B 35. C 36. D 37. C 38. B 39. A 40. B 41. A 42. B 43. D 44. C 45. B 46. D 47. E 48. C 49. B 50. F主观题评分标准及说明(一)语法填空参考答案16. which 17. cheerful / cheery 18. digging 19. lay 20. for21. But 22. left 23. where 24. the 25. because / as /since注:单词拼写错误、大小写未区分不给分。
(二)基础写作﹡范文Recently we surveyed 368 middle school students on how they spent the 2012 Spring Festival. 30% said they spent most of their time with their parents visiting relatives and friends while 25% went traveling with classmates or parents. 45% of all those surveyed indicated that they just stayed at home to do homework. When asked how they felt about the Spring Festival, most said they enjoyed it because of the holiday and lucky money they got, but some felt unhappy because the amount of homework they were given left little time for fun activities. Many students expressed the hope that next year they will have less homework and more free time.﹡基础写作评分说明基础写作主要考查学生的语言结构的应用能力,能够应用正确、规范的语言表达特定的内容。
2012年广东省广州二模试题(理数,全word)
试卷类型:A2012年广州市普通高中毕业班综合测试(二)数 学(理科)2012.4 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姓名和考生号、试室号、座位号填写在答题卡上。
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考试结束后,将试卷和答题卡一并交回。
一、选择题:本大题共8小题,每小题5分,满分40分.在每小题给出的四个选项中,只有一项是符合题目要求的. 1.已知i 为虚数单位,复数1z a =+i ,22z =-i ,且12z z =,则实数a 的值为 A .2 B .2- C .2或2- D .±2或02.设集合()}{()}{,26,,324,A x y x y B x y x y =+==+=满足()C A B ⊆ 的集合C 的 个数为A .1B .2C .3D .4 3.已知双曲线221x m y +=的虚轴长是实轴长的2倍,则实数m 的值是 A .4 B .14C .14-D .4-4.已知等差数列{}n a 的公差为2,项数是偶数,所有奇数项之和为15,所有偶数项之和为25,则这个数列的项数为A .10B .20C .30D .405. 已知两条不同直线m 、l ,两个不同平面α、β,在下列条件中,可得出αβ⊥的是 A .m l ⊥,//l α,//l β B .m l ⊥,l αβ= ,m α⊂ C .//m l ,m α⊥,l β⊥ D .//m l ,l β⊥,m α⊂6.下列说法正确的是 A .函数()1f x x=在其定义域上是减函数A B .两个三角形全等是这两个三角形面积相等的必要条件C .命题“x ∃∈R ,210x x ++>”的否定是“x ∀∈R ,21x x ++D .给定命题p 、q ,若p q ∧是真命题,则p ⌝是假命题7.阅读图1的程序框图, 该程序运行后输出的k 的值为 A. 5 B. 6C. 7D. 8 8. 已知实数,a b 满足22430a b a +-+=,函数()sin cos 1f x a x b x =++的最大值记为(),a b ϕ, 则(),a b ϕ的最小值为A .1B .2C 1D .3二、填空题:本大题共7小题,考生作答6小题,每小题5分,满分30分. (一)必做题(9~13题)9.某社区有600个家庭,其中高收入家庭150户,中等收入家庭360户,低收入家庭90户, 为了调查购买力的某项指标,用分层抽样的方法从中抽取一个容量为100的样本,则中等 收入家庭应抽取的户数是 .10.6⎛- ⎝展开式中的常数项是 (用数字作答).11. 已知不等式21x ->的解集与不等式20x ax b ++>的解集相等,则a b +的值为 . 12.在平行四边形A B C D 中, 点E 是A D 的中点, BE 与A C 相交于点F ,若(,E F m A B n A D m n =+∈ R ), 则mn的值为 .13. 已知点P 是直角坐标平面xOy 上的一个动点,OP =(点O 为坐标原点),点()1,0M -,则cos O P M ∠的取值范围是 . (二)选做题(14~15题,考生只能从中选做一题)14.(坐标系与参数方程选做题)在极坐标系中,若等边三角形(ABC 顶点A ,,B C 按顺时针方向排列)的顶点,A B 的极坐标分别为72,,2,66ππ⎛⎫⎛⎫⎪ ⎪⎝⎭⎝⎭,则顶点C 的极坐标 为 .15.(几何证明选讲选做题)如图2,A B 是圆O 的直径,延长A B 至使2B C O B =,C D 是圆O 的切线,切点为D ,连接A D ,B D 则AD BD的值为 .图4NM D CBAB 1C 1D 1A1图5侧(左)视图正(主)视图图3BA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)已知函数()()sin 0,03f x A x A πωω⎛⎫=->> ⎪⎝⎭在某一个周期内的图象的最高点和最低点的坐标分别为5,212π⎛⎫⎪⎝⎭,11,212π⎛⎫- ⎪⎝⎭. (1) 求A 和ω的值; (2) 已知0,2πα⎛⎫∈ ⎪⎝⎭,且4sin 5α=, 求()f α的值.17.(本小题满分12分)如图3,,A B 两点之间有6条网线连接,它们能通过的最大信息量分别为1,1,2,2,3,4.从中任取三条网线且使每条网线通过最大信息量,设这三条网线通过的最大信息量之和为ξ. (1) 当6ξ≥时,则保证线路信息畅通,(2) 求ξ的分布列和数学期望.18.(本小题满分14分).某建筑物的上半部分是多面体M N A B C D -, 下半部分是长方体1111ABC D A B C D -(如图4). 该建筑物的正视图和侧视图如图5, 其中正(主)视图由正方形和等腰梯形组合而成,侧(左)视图由长方形和等腰三角形组合而成. (1)求直线A M 与平面1111A B C D 所成角的正弦值; (2)求二面角A M N C --的余弦值; (3)求该建筑物的体积.19.(本小题满分14分)已知对称中心为坐标原点的椭圆1C 与抛物线22:4C x y =有一个相同的焦点1F ,直线:2l y x m =+与抛物线2C 只有一个公共点. (1)求直线l 的方程;(2)若椭圆1C 经过直线l 上的点P ,当椭圆1C 的的离心率取得最大值时,求椭圆1C 的方程及点P 的坐标.20.(本小题满分14分) 已知函数()21ln 2f x x ax x =-+,a ∈R .(1)求函数()f x 的单调区间;(2)是否存在实数a ,使得函数()f x 的极值大于0?若存在,,求a 的取值范围;若不存在,说明理由.21.(本小题满分14分)已知函数()f x 的定义域为()1,1-,且112f ⎛⎫=⎪⎝⎭,对任意(),1,1x y ∈-,都有()()1x yf x f y f xy⎛⎫--=⎪-⎝⎭,数列{}n a 满足11221,(21n n n a a a n a +==∈+N *). (1) 证明函数()f x 是奇函数; (2) 求数列(){}n f a 的通项公式;(3) 令12(nn a a a A n n+++=∈ N *), 证明:当2n ≥时,1112nni i i i n a A ==--<∑∑.2012年广州市普通高中毕业班综合测试(二)数学(理科)试题参考答案及评分标准一、选择题:本大题主要考查基本知识和基本运算.共8小题,每小题5分,满分40分.二、填空题:本大题主要考查基本知识和基本运算.本大题共7小题,考生作答6小题,每小题5分,满分30分.其中14~15题是选做题,考生只能选做一题.9.60 10.160- 11.1- 12.2- 13.2⎤⎥⎣⎦14.23π⎛⎫⎪⎝⎭15说明:第14题的答案可以是22(3k k ππ⎛⎫+∈ ⎪⎝⎭Z ). 三、解答题:16.( 12分) (本小题主要考查三角函数的图象和性质、二倍角的正弦与余弦、同角三角函数关系、两角差的正弦等知识, 考查化归与转化的数学思想方法和运算求解能力)(1) 解:∵函数()f x 的图象的最高点坐标为5,212π⎛⎫⎪⎝⎭, ∴2A =. … 1分 依题意,得函数()f x 的周期11521212T πππ⎛⎫=-=⎪⎝⎭,…… 2分∴22T πω==. …… 3分 (2)解:由(1)得()2sin 23f x x π⎛⎫=- ⎪⎝⎭. … 4分∵0,2πα⎛⎫∈ ⎪⎝⎭,且4sin 5α=,∴3cos 5α==. …… 5分 ∴24sin 22sin cos 25ααα==, …… 7分27cos 212sin 25αα=-=-.…9分∴()2sin 23f παα⎛⎫=- ⎪⎝⎭…10分2sin 2cos cos 2sin 33ππαα⎛⎫=- ⎪⎝⎭…… 11分25=… 12分 17. (12分)(本小题主要考查古典概型、离散型随机变量的分布列与数学期望等知识, 考查或然与必然的数学思想方法,以及数据处理能力、运算求解能力和应用意识)(1) 解: 从6条网线中随机任取三条网线共有3620C =种情况. ……… 1分∵1141236++=++=, ∴()1122361164C C P C ξ+===.…… 2分Q 1P 1QPO N M D CBA∵1242237++=++=∴()1122361174C C P Cξ+===.…… 3分∵1342248++=++=,∴()123613820C P Cξ+===.…… 4分∵2349++=, ∴()12361910C P Cξ===.……… 5分∴P ()()()()()66789P P P P ξξξξξ≥==+=+=+= 113134420104=+++=.答: 线路信息畅通的概率为34.…… 6分(2)解:ξ的取值为4,5,6,7,8,9.…… 7分 ∵1124++=, ∴()12361410C P Cξ===.… 8分∵1131225++=++=,∴()123613520C P Cξ+===. …… 9分∴ξ的的分布列为:…… 10分∴1311314567891020442010E ξ=⨯+⨯+⨯+⨯+⨯+⨯… 11分 6.5=.…… 12分18.(14分)(本小题主要考查空间线面关系、几何体的三视图、空间角、几何体的体积等知识, 考查数形结合、化归与转化的数学思想方法,以及空间想象能力、推理论证能力和运算求解能力) 解法1:(1)作M O ⊥平面A B C D ,垂足为O ,连接A O ,则M A O ∠是直线A M 与平面A B C D 所成的角. …… 1分 由于平面A B C D //平面1111A B C D ,故M A O ∠是直线A M 与平面1111A B C D 所成的角.… 2分作M P AB ⊥,垂足为P ,连接P O , ∵A B ⊂平面A B C D ,∴M O A B ⊥. ∵,MO MP M MO =⊂ 平面M O P ,M P ⊂平面M O P ,∴AB ⊥平面M O P . …… 3分由题意知1,MO PO AP ===12,4AD AA ==,在R t △P O M 中,PM ==在R t △A P M 中,AM ==R t △A O M 中,sin 3M O M A OA M∠===∴直线A M 与平面1111A B C D 3…… 5分(2)延长PO 交CD 于点Q ,连接MQ ,由(1)知AB ⊥平面M O P ∵MQ ⊂平面M O P , ∴AB ⊥MQ .∵//M N A B ,11∴,MN MP MN MQ ⊥⊥. …………… 6分∴PMQ ∠是二面角A M N C --的平面角. …… 7分 在△PMQ中,2M Q M P PQ ===,∵2224M P M Q PQ +==,∴90PM Q ︒∠=. ……… 8分∴二面角A M N C --的余弦值为0. … 9分 (3)作1//N P M P 交A B 于点1P ,作1//NQ M Q 交C D 于点1Q ,由题意知多面体M N A B C D -可分割为两个等体积的四棱锥M APQD -和11N P BC Q -和一个直三棱柱11M PQ N P Q -.四棱锥M APQD -的体积为113V A P A D M O =1212133=⨯⨯⨯=, ………… 10分直三棱柱11M PQ N P Q -的体积为2112222V M P M Q M N ==⨯= ,…11分∴多面体M N A B C D -的体积为122V V V =+2102233=⨯+=. …………… 12分长方体1111ABC D A B C D -的体积为3142432V AB BC AA ==⨯⨯= . ……… 13分 ∴建筑物的体积为31063V V +=. …………… 14分解法2:(1)以点D 为原点,D A 所在直线为x 轴,D C 所在直线为y 轴,1D D 所在直线为z 轴,建立空间直角坐标系D xyz -(如图),作M O ⊥平面A B C D ,垂足为O , 作O P A B ⊥,垂足为P ,依题意知1M O O P A P ===,12,4AD AA ==,则()()0,0,0,2,0,0,D A ()()1,1,1,1,3,1M N ,()12,0,4A -. ∴()1,1,1AM =-. … 2分∵1A A ⊥平面1111A B C D , ∴平面1111A B C D 的一个法向量为()10,0,4AA =-.……… 3分设直线A M 与平面1111A B C D 所成角为θ,则sin θ=11AM AA AM AA =3=…… 4分∴直线A M 与平面1111A B C D所成角的正弦值为3.…………(2)由(1)知()()0,2,0,1,1,1MN DM ==,设平面A B N M 的法向量为1n (),,x y z =,由1n 0MN = ,1n 0AM =,得0,20.x y z y -++=⎧⎨=⎩令1x =,则1,0z y ==.∴平面A B N M 的一个法向量为1n ()1,0,1=. …… 6分设平面C D M N 的法向量为2n (),,x y z =,由2n 0DM = ,2n 0MN = ,得0,20.x y z y ++=⎧⎨=⎩令1x =,则1,0z y =-=. ∴平面C D M N 的一个法向量为2n ()1,0,1=-.… 7分 ∵1n 2n ()110110=⨯++⨯-=,∴平面A B N M ⊥平面C D M N .…… 8分∴二面角A M N C --的余弦值为0. ……… 9分 (3)如图将多面体M N A B C D -补成一个直三棱柱1AD Q BC Q -,依题意知1111AQ DQ BQ CQ M Q NQ ======,2AD =,14AA =,多面体M N A B C D -的体积等于直三棱柱1AD Q BC Q -的体积减去两个等体积的三 棱锥M ADQ -和1N BC Q -的体积.∵2224AQ D Q AD +==,∴90AQD ︒∠=.∴直三棱柱1AD Q BC Q -的体积为1114422V AQ D Q AB ==⨯= ,……… 10分三棱锥M ADQ -的体积为2V =11111132323A Q D Q M Q =⨯⨯=.…… 11分∴多面体M N A B C D -的体积为V =122102433V V -=-=. …… 12分长方体1111ABC D A B C D -的体积为3142432V AB C D AA ==⨯⨯= . … 13分 ∴建筑物的体积为31063VV +=. …… 14分19. (14分)(本小题主要考查直线、椭圆、抛物线等知识, 考查数形结合、化归与转化、函数与方程的数学思想方法,以及推理论证能力和运算求解能力)(1)解法1:由22,4y x m x y=+⎧⎨=⎩消去y ,得2840x x m --=. …… 1分 ∵直线l 与抛物线2C 只有一个公共 ∴28440m ∆=+⨯=,解得4m =-. …… 3分∴直线l 的方程为24y x =-.…… 4分解法2:设直线l 与抛物线2C 的公共点坐标为()00,x y , 由214y x =,得'12y x =,∴直线l 的斜率0'012x x k y x ===. …… 1分 依题意得0122x =,解得04x =.… 2分把04x =代入抛物线2C 的方程,得04y =. ∵点()00,x y 在直线l 上,∴424m =⨯+,解得4m =-. …… 3分 ∴直线l (2)解法1:∵抛物线2C 的焦点为()10,1F ,依题意知椭圆1C 的两个焦点的坐标为()()120,1,0,1F F -. 设点()10,1F 关于直线l 的对称点为()'100,F x y ,则0000121,12 4.22y x y x -⎧⨯=-⎪⎪⎨+⎪=⨯-⎪⎩…… 7分解得004,1.x y =⎧⎨=-⎩∴点()'14,1F -. ……… 8分∴直线l 与直线'12:1F F y =-的交点为03,12P ⎛⎫- ⎪⎝⎭由椭圆的定义及平面几何知识得:椭圆1C 的长轴长'12122a PF PF PF PF =+=+'1F ≥ 其中当点P 与点0P 重合时,上面不等式取等号. ∴2a ≥. ∴112e a=≤.故当2a =时,m ax12e =… 12分此时椭圆1C 的方程为22143yx+=,点P的坐标为3,12⎛⎫- ⎪⎝⎭.… 14分解法2:∵抛物线2C 的焦点为()10,1F ,依题意知椭圆1C 的两个焦点的坐标为()()120,1,0,1F F - 5分设椭圆1C 的方程为()2222111y xa aa +=>-, … 6分由222224,11y x y xaa =-⎧⎪⎨+=⎪-⎩消去y ,得()()()()22222541611160a x a x a a ---+--=.(*) … 7分 由()()()()222221614541160a a a a ⎡⎤∆=-----≥⎣⎦, …… 8分得425200a a -≥. ……… 9分 解得24a ≥.∴2a ≥. …………… 10分 ∴112e a =≤. …………… 11分当2a =时,m ax 12e =,此时椭圆1C 的方程为22143yx+=. …………… 12分把2a =代入方程(*),解得32x =,1y =-. …………… 13分∴点P 的坐标为3,12⎛⎫-⎪⎝⎭. …………… 14分 20. (本小题满分14分)(本小题主要考查函数和方程、导数、函数的极值等知识, 考查函数与方程、分类与整合、化归与转化的数学思想方法,以及抽象概括能力、推理论证能力和运算求解能力)(1)解:函数()f x 的定义域为()0,+∞. …………… 1分()2111ax x f x ax xx--'=-+=-. …………… 2分① 当0a =时,()1x f x x+'=,∵0,x > ∴()'0fx >∴ 函数()f x 单调递增区间为()0,+∞. …………… 3分② 当0a ≠时,令()0f x '=得210ax x x---=,∵0,x >∴210ax x --=. ∴14a ∆=+.(ⅰ)当0∆≤,即14a ≤-时,得210ax x --≤,故()0f x '≥,∴ 函数()f x 的单调递增区间为()0,+∞. …………… 4分(ⅱ)当0∆>,即14a >-时,方程210ax x --=的两个实根分别为12x a=22x a=. …………… 5分若104a -<<,则120,0x x <<,此时,当()0,x ∈+∞时,()0f x '>.∴函数()f x 的单调递增区间为()0,+∞, …………… 6分 若0a >,则120,0x x <>,此时,当()20,x x ∈时,()0f x '>,当()2,x x ∈+∞时,()0,f x '<∴函数()f x 的单调递增区间为10,2a ⎛+ ⎪⎝⎭,单调递减区间为1,2a ⎛⎫++∞ ⎪ ⎪⎝⎭.…………… 7分综上所述,当0a >时,函数()f x 的单调递增区间为10,2a ⎛⎫+⎪ ⎪⎝⎭,单调递减区间为2a⎛⎫+∞⎪ ⎪⎝⎭;当0a ≤时,函数()f x 的单调递增区间为()0,+∞,无单调递减区间. ………… 8分(2)解:由(1)得当0a ≤时,函数()f x 在()0,+∞上单调递增,故函数()f x 无极值;…………… 9分当0a >时,函数()f x 的单调递增区间为0,2a ⎛⎝⎭,单调递减区间为1,2a ⎛⎫++∞ ⎪ ⎪⎝⎭;则()f x 有极大值,其值为222221()ln 2f x x ax x =-+,其中212x a+=. … 10分而22210ax x --=,即2221ax x =+,∴2221()ln 2x f x x -=+. …………… 11分设函数1()ln (0)2x h x x x -=+>,则'11()02h x x=+>, …………… 12分则1()ln 2x h x x -=+在()0,+∞上为增函数.又(1)0h =,则()0h x >等价于1x >. ∴2()f x =221ln 2x x -+0>等价于21x >. …………… 13分即在0a >时,方程210ax x --=的大根大于1,设2()1x ax x ϕ=--,由于()x ϕ的图象是开口向上的抛物线,且经过点(0,1)-,对称 轴102x a=>,则只需(1)0ϕ<,即110a --<,解得2a <,而0a >,故实数a 的取值范围为()0,2. ……………… 14分说明:若采用下面的方法求出实数a 的取值范围的同样给1分.1.由于11222aaa=+=+()0,+∞是减函数,而12a=时,2a =12a>的解集为()0,2,从而实数a 的取值范围为()0,2.2.直接解不等式12a>,而0a >,通过分类讨论得出实数a 的取值范围为()0,2.21. (本小题满分14分)(本小题主要考查函数、数列、不等式等知识, 考查化归与转化、分类与整合的数学思想方法,以及抽象概括能力、推理论证能力、运算求解能力和创新意识) (1)解:由于对任意(),1,1x y ∈-,都有()()1x y f x fy f xy ⎛⎫--=⎪-⎝⎭, 令0x y ==,得()()()00000100f f f f -⎛⎫-==⎪-⨯⎝⎭,解得()00f =. …………… 1分 令0x =,得()()()0010y f f y f f y y ⎛⎫--==- ⎪-⨯⎝⎭, ∵()00f =,∴()()0f y f y -=-,即()()f y fy -=-. …………… 2分∴函数()f x 是奇函数. …………… 3分(2)解:先用数学归纳法证明01n a <<.① 当1n =时,112a =,得101a <<, 结论成立.② 假设n k =时, 结论成立, 即01k a <<, 当1n k =+时, 由于01k a <<, 12201k k ka a a+=>+,又12222121k k k kka a a a a a +=<==+.∴101k a +<<.即1n k =+时, 结论也成立.由①②知对任意n ∈N *, 01n a <<. …………… 4分 求数列(){}n f a 的通项公式提供下面两种方法. 法1:()()()12211n n n n n n n a a a f a f f a a a +⎛⎫--⎛⎫== ⎪⎪ ⎪+--⎝⎭⎝⎭()()n n f a f a =--.…………… 5分 ∵函数()f x 是奇函数, ∴()()n n f a f a -=-.∴()1n f a +()2n f a =. …………… 6分 ∴数列(){}n f a 是首项为()1112f a f ⎛⎫==⎪⎝⎭,公比为2的等比数列. ∴数列(){}n f a 的通项公式为()12n n f a -=. …………… 7分法2: ∵()()1111n n n n n n a a f a f a f a a +++⎛⎫--= ⎪-⎝⎭…………… 5分22221211nnnnna a a f a a ⎛⎫- ⎪+ ⎪= ⎪-⎪+⎝⎭321n n n a a f a ⎛⎫-= ⎪-⎝⎭ =()n f a , ∴()1n f a +()2n f a =. …………… 6分 ∴数列(){}n f a 是首项为()1112f a f ⎛⎫==⎪⎝⎭,公比为2的等比数列. ∴数列(){}n f a 的通项公式为()12n n f a -=. …………… 7分(3)证法1:由(2)知01n a <<,∵1221n n n n na a a a a+-=-+()22101n nna a a-=>+,∴1n n a a +>. …………… 8分∴111,1(22n a a n =<<∈N *,且2)n ≥ ∴10(,2n m a a n m <-<∈N *,且)n m >. …………… 9分当2k ≥且k ∈ N *时,12kk k k a a a a A a k+++-=-()()()121k k k k a a a a a a k--+-++-=…………… 10分12k k -< …………… 11分1122k=-12<.∴102k k a A <-<. …………… 12分∵110a A -=,∴当2n ≥时,11102n ni i i i n a A ==-<-<∑∑. …………… 13分∴当2n ≥时,1112nni i i i n a A ==--<∑∑. …………… 14分证法2:由(2)知01n a <<,∵1221n n n n na a a a a +-=-+()22101n nna a a -=>+,∴1n n a a +>. …………… 8分 ∴111,1(22n a a n =<<∈N *,且2)n ≥ ∴1(,2n m a a n m -<∈N *). …………… 9分下面用数学归纳法证明不等式1112nni i i i n a A ==--<∑∑成立.①当2n =时,左边1212121122a a a a a a a +⎛⎫=+-+=- ⎪⎝⎭111222<⨯<=右边. ∴2n =时,不等式成立. …………… 10分②假设(2,n k k k =≥∈N *)时,不等式成立,即1112kki i i i k a A ==--<∑∑,则1n k =+时,左边=1111k k i i i i a A ++==-∑∑1211111k kk i k i i i a a a a a A k ++==+++=+--+∑∑ …………… 11分()()1121111k kk k i i i i k a a a a a A k +==+-+++⎛⎫=-+ ⎪+⎝⎭∑∑()()()111211111k ki i k k k ki i a A a a a aa a k +++==≤-+-+-++-+∑∑………… 12分()111211121k k k kk aa a a a a k +++-<+-+-++-+1111121222k k -⎛⎫<++++ ⎪+⎝⎭ 11212k k k -=+⨯+()1112221k k -=+-+1122k -<+()112k +-==右边. …………… 13分∴1n k =+时,不等式也成立.由①②知,当2n ≥时,1112nnii i i n a A ==--<∑∑成立. …………… 14分证法3:由(2)知()011,2,3,,k a k n <<= ,故对11k n ≤≤-,有110,0knii i i k ak a n k ==+<<<<-∑∑. …………… 8分由于对任意0,0x y >>,有{}max ,x y x y -<,其中{}m ax ,x y 表示x 与y 的较大值. 于是对11k n ≤≤-,有11111knn k i i i i k A A a a n k n ==+⎛⎫-=--⎪⎝⎭∑∑…………… 9分11111nki i i k i a a n k n =+=⎛⎫=-- ⎪⎝⎭∑∑ 11111m ax ,nki i i k i a a n k n =+=⎧⎫⎛⎫<-⎨⎬ ⎪⎝⎭⎩⎭∑∑ …………… 10分 ()111m ax ,n k k nkn ⎧⎫⎛⎫≤--⎨⎬⎪⎝⎭⎩⎭1(1,2,3,,1)k k n n=-=- . …………… 11分故111nnnii n i i i i aA nA A ===-=-∑∑∑()()()121n n n n A A A A A A -=-+-++- …… 12分121n n nn A A A A A A -≤-+-++- 121111n n n n -⎛⎫⎛⎫⎛⎫<-+-++- ⎪ ⎪ ⎪⎝⎭⎝⎭⎝⎭…………… 13分 ()()12311nn n++++-=--()()121n n n n-=--12n -=. …………… 14分。
2012年广东省广州市中考英语试卷(含答案)
秘密★启用前20l2年广州市初中毕业生学业考试英语一、听力(共两节,满分35分)第一节听力理解(共15小题;每小题2分,.满分30分)每段播放两遍。
各段后有几个小题,各段播放前每小题有5秒钟的阅题时间。
请根据各段播放内容及其相关小题,在5秒钟内从题中所给的A、B、C项中,选出最佳选项,并在答题卡上将该项涂黑。
’听下面一段对话,回答第l~3三个小题。
1.What does the man give the woman?A.A birthday card.B.A birthday present.C.A birthday invitation.2.When will the woman go shopping?A.On Friday.B.On Saturday:C.On Sunday.3.Why does Anne think she is going to the man’s home?A.To discuss his study problems.B.To heIp him with his computer.C.To attend his birthday party.听下面一段对话,回答第4~6三个小题。
4Where does the talk take place?A.At the ticket Office.B.In the football stadium.C.In the street.5.Why does the woman want to buy a ticket?A.To go to see the match.B.T0 give her son a reward.C.To selI it and earn money.6.What does the woman finally decide to do?A.To go to the ticket office.B.T0buytheticketfromtheman.C.T0 return home without a ticket.听下面一段独自,回答第7~9三个小题。
2012年广州市初中毕业生学业考试英语附答案
2012年广州市初中毕业生学业考试英语本试卷共五大题,满分135分。
考试时间120分钟。
注意事项:1.答卷前,考生务必在答题卡上用黑色字迹的钢笔或签字笔填写自己的考生号、姓名、试室号、座位号,再用2B铅笔把对应这两个号码的标号涂黑。
2.选择题每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。
如需要改动,用橡皮擦干净后,再选涂其他答案。
不能答在试卷上。
3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域的相应位置上;如需要改动,先划掉原来的答案,然后再写上新的答案,改动的答案也不能超出指定的区域;不准使用铅笔、圆珠笔和涂改液。
不按以上要求作答的答案无效。
4.考生必须保持答题卡的整洁,考试结束,将本试卷和答题卡一并交回:一、听力(共两节,满分35分)第一节、听力理解(共15小题;每小题2分,满分30分)每段播放两遍。
各段后有几个小题,各段播放前每小题有5秒钟的阅题时间。
请根据各段播放内容及其相关小题,在5秒钟内从题中所给的A.、B、C项中,选出最佳选项,并在答题卡上将该项涂黑。
听下面一段对话,回答第1—3三个小题1.What does the man give the woman?A.A birthday card.B.A birthday present.C.A birthday invitation.2.When will the woman go shopping?A.On Friday.B.On Saturday.C.On Sunday.3.Why does Arme think she is going to the man's home?A.To discuss his study problems.B.To help him with his computer.C.To attend his birthday party.听下面一段对话,回答第4—6三个小题4.Where does the talk place?A.At the ticket office.B.In the football stadium.C.In the street5.Why does the woman want to buy a ticket?A.To go to see the match.B.To give her son a reward.C.To sell it and earn money.6.What does the woman finally decide to do?A.To go to the ticket office.B.To buy the ticket from the man.C.To return home without a ticket.听下面一段独白,回答第7—9三个小题。
2012年广东省英语高考综合检测(二)
综合检测(二)(测试时间:120分钟,评价分值:135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,从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。
Tom was crossing the road the other day when he saw a red car coming in the distance.He thought the car would__1__,as the lights had turned red.However, the car was going too__2__ and Tom soon__3__ that it couldn’t stop in time.He__4__ to move out of its__5__ but it was too late.Tom was__6__ down by the red car and lay__7__ dead on the road.Passers-by quickly went to him and an ambulance(救护车)was__8__for.The driver of the red car didn’t stop, but one of the men had written down the__9__ of the car, which he__10__ to the police who arrived at the site(现场).At the same time, Tom was taken to the__11__ and his parents were called for.They were very surprised to hear of the accident and quickly rushed to his side.For three days Tom was not able to feel or think and his parents were worried that he__12__ die.But on the fourth day Tom__13__ and spoke softly.His parents were__14__.The police by then had__15__ the owner of the car and caught hold of him at last.1.A.start B.stop C.move D.break 2.A.fast B.slow C.far D.late 3.A.understood B.realized C.knew D.recognized 4.A.tried B.managed C.failed D.was able 5.A.road B.path C.door D.way 6.A.put B.knocked C.laid D.thrown 7.A.almost B.already C.still D.obviously 8.A.looked B.called C.sent D.asked 9.A.type B.name C.number D.address 10.A.took B.gave C.posted D.sent11.A.station B.school C.hospital D.home 12.A.must B.might C.could D.should 13.A.felt sick B.got up C.fell asleep D.woke up 14.A.surprised B.calm C.glad D.puzzled 15.A.noticed B.grasped C.found D.followed第二节:语法填空(共10小题,每小题1.5分,满分15分) We are all in the position of the farmer. If we plant a good seed, we __16__(get) a good harvest. If our seed is poor and full of weeds, we’ll get a __17__ (use) crop. If we don’t plant anything, we’ll harvest(收获vt.) nothing at all. I want the future to be better __18__ the past. I don’t want it __19__ (pollute) by the mistakes and errors(错误n.) __20__ which history is filled. We should all be__21__ (concern) about the future because that is __22__ we will spend the rest of our lives. The past is gone and static. Nothing we can do will change it. The future is __23__ us and it is dynamic. Everything we do will affect it. Each day it will bring us new frontiers in our homes and in our businesses as long as we recognize __24__. We are just at __25__ beginning of the progress in every field of human efforts.第二部分:阅读(共两节,满分50分)第一节:阅读理解(共20小题;每小题2分,满分40分) 阅读下列短文,从每题所给的四个选项中,选出最佳选项。
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试卷类型:B 2012年广州市普通高中毕业班综合测试(二)英语本试卷共12页,三大题,满分135分。
考试用时120分钟。
注意事项:1. 答卷前,考生务必用2B铅笔在“考生号”处填涂考生号。
用黑色字迹的钢笔或签字笔将自己所在的市、县/区、学校以及自己的姓名和考生号、试室号、座位号填写在答题卡上。
用2B铅笔将试卷类型(B)填涂在答题卡相应位置上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选项的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上。
3. 非选择题必须用黑色字迹钢笔或签字笔作答,答案必须写在答卷纸各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案;不准使用铅笔和涂改液不按以上要求作答的答案无效。
4. 考生必须保持答题卡的整洁。
考试结束后,将试卷和答题卡一并交回。
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。
I woke up this morning with a fright!There appeared to be a mouse in my bed tickling my nose and 1 ____ scratching me. It had to be a mouse, for those tiny sharp little nails were scratching me all across my 2 ____.It couldn't have been a(n) 3 ____ as I didn't own any pets;it couldn't have been a rat, because if what I had read about rats was 4 ____,their sharp teeth could 5 ____their way through solid stone. They do this because their front teeth never stop growing and this is the only way to keep them 6 ____.I didn't dare to open my eyes and face the 7 ____of the disgusting mouse in the bed with me. I felt so dirty and 8 I didn't want to change my position cither, 9 ____the mouse would slide onto other areas of my body, which would 10 ____give me horrible dreams for years to come!Despite my fears, I finally decided to swiftly 11 the mouse away. But it 12 __!I didit again and again and it kept coming back, every single time.There was no way out. I had to face my enemy. I took a breath, gathered my 13 ____and slowly opened my eyes. To my relief, I saw something far 14 ____than a mouse and it all came back to me.I had put my baby daughter Rebecca into bed beside me after her first bottle in the morning!That also reminded me: I needed to trim (修剪)her _15___1. A. warmly B. lightly C. wildly D. thoroughly2. A. foot B. hand C. stomach D. face3. A. mouse B. insect C. cat D. fly4. A. true B. suitable C. interesting D. clear5. A. fight B. pull C. carve D. wind6. A. strong B. sharp C. slim D. short7. A. horror B. thought C. risk D. cost8. A. tired B. stupid C. uncomfortable D. disappointed9. A. hoping B. fearing C. assuming D. doubting10. A. gradually B. temporarily C. surely D. hardly11. A. throw B. brush C. keep D. send12. A. returned B. repeated C. dropped D. stayed13. A. memories B. thoughts C. energy D. courage14. A. softer B. cuter C. uglier D. worse15. A. hair B. feet C. nails D. fingers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。
Inequality between men and women results in poorer health for children and greater family poverty(贫穷),according to a new study. The UN agency Unicef found that, 16 ___the situation has slightly improved, many women are still not included in family decisions,17__ as a result their children are more likely to suffer from poor health.The main finding of the 30-country survey is that equality between men and women is vital to 18__ (improve) living standards and health, especially for children in developing countries. The conclusions arc contained in the agency’ s 19 ___ (late) report. This report points to a lack of opportunities for girls and women in education and work,which contributes 20____theirpoverty and lack of power. Where men control the household, less money 21__ ( spend) on healthcare and food,22___ results in poorer health for children.An increase in 23 __ (employ) opportunities for women would increase 24___ household power, the report said. For example, the agency found that whoever has more household income decides 25____or not it will be used for family needs.II阅读(共两节,满分50分)第一节阅读理解(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。
AWhen the SS Gairsoppa was sunk by a German war boat 70 years ago,it took its huge silver cargo to a watery grave. Today, US divers are working to recover what may be the biggest shipwreck treasure ever.The Florida-based company Odyssey Marine Exploration announced that it had found the Gairsoppa, and cited official documents indicating the British ship was carrying some 219 tons of silver when it sank in 1941 in the North Atlantic f some 300 miles off the Irish coast.Valued then at£600,000, the silver today is worth about $ 210 million, which would make it history's largest recovery of precious metals lost at sea.“We've accomplished the first stage of this project — the location and identification of the target shipwreck — and now we're hard at work planning for the recovery stage,” Odyssey project manager Andrew Craig said.Under the terms of an agreement reached between Odyssey and the British government,the company will retain 80 percent of the silver it can recover from the wreck.The 412-foot Gairsoppa had been sailing from India back to Britain in February 1941 carrying a cargo of silver, iron and tea, when a storm hit. Running low on fuel, the ship was forced to change direction and headed for Galway,Ireland,the nearest port of safety.It never made it,sunk by a German torpedo in the contested waters of the North Atlantic. Of the 85 people on board,only one survived.The Gairsoppa came to rest nearly 15 ,400 feet below the surface, where for decades it was lost to the world. All previous efforts to locate the shipwreck failed.New photographs released by the Oddesy show clear details of the ship,including the hole blown open by the torpedo. The find highlights the influential role that modern technologies,such as global positioning systems and deepwater robots,have come to play in the business of finding shipwrecks.Odyssey president Mark Gordon said, "The majority of the world's ocean floor has not yet been explored. We know more about the surface of the moon than we know about the deepest parts of the oceans. It's exciting to be working at depths like these and to be among the pioneers of this unexplored frontier. ”26. What caused the ship to sink?A. A dangerous storm.B. A German attack.C. A loss of direction.D. An accidental explosion.27. Where was the ship headed when it sank?A. India.B. Ireland.C. The United States.D. Britain.28. Which of the following about the Gairsoppa is true?A. All the passengers aboard were killed.B. Some of its treasures have already been recovered.C. It is under more than 15,000 meters of water.D. It is officially owned by the British government.29. Why has it taken so many years to find the location of the ship?A. The required technology was not available before,B. People had completely forgotten the ship had been sunk.C. Search permission had previously been refused.D. Official ship records have only recently been discovered.30. What does Mark Gordon think of deep-sea exploration?A. It is more difficult than space exploration.B. It is a very expensive activity.C. It is still in its early stage.D. It can make explorers very rich,BI live in Mumbai, India, a big city, but I came from a remote Kerala village. When I was a- boy, hardly anyone spoke English around me. So, at age nine, Dad sent me to Montfort, an exclusive boarding school. There, I had to speak English or be punished. My uniform was typical Englishpublic school:grey jacket,tie,and black leather shoes一so different from the clothes most people in my village wore. And our official school sport was cricket, something I'd never heard of, let alone played, before arriving.Montfort had been built for the children of the British officials who once ruled India ’ but by the time I arrived in 1961, nearly all the students were from powerful Indian families. Its English traditions, however, continued.When I returned home for the holidays still wearing my uniform, people stared at me like I was an alien. “Speak some English,”they teased. Looking back, I unwittingly brought a bit of English culture to my village.But English and too much Western influence are precisely what many traditionalists and politicians fear. They ask:Will such influences finish off our own culture?Various leaders have tried to erase the British traditions, pulling down old British statues and replacing many British-rule city names with older native names. Some even advocate changing our weekly day of rest from the "Western" Sunday to the “Hindu" Tuesday.Extreme responses I say. You can't change history, and it's only natural for foreign influences to affect a nation's culture. So Indian culture, as it is today, is really a mixture derived from centuries of foreign invasions.Add to that the massive changes of the 20th century resulting from the television, jet-age travel, the Internet, etc.Everything from clothes and language to food keeps changing, yet we remain Indian. I believe that Asian cultures are too ancient and deep-rooted to be weakened by foreign influences.Allow me to illustrate ray point. Some time ago, I took my visiting Singapore-born-and- raised cousin to a Chinese restaurant for dinner. Later, while driving home,I talked about the fine Chinese food we'd just had.“Was that Chinese food?”my cousin exclaimed. “Oh, I didn't know. ”It must have tasted too Indian for him to realise it.Meanwhile, like countless others, my village has transformed over the past decades. Many people wear modern clothes and TV brings cricket into local homes. There's even an English- language school,where you can hear kids giggling,yelling,flirting — all in English,but with an Indian accent. Just like the Chinese food you get in India.Are these foreign influences something to worry about? I don't think so. India's Chinese food tastes pretty good to me!31. What can we infer about the author?A. He was a supporter of British rule in India.B. He came from a wealthy family.C. His family was unpopular in the village.D. He was partly educated in Britain.32. Which of the following are mentioned by the author as British influences on Indian society?a. Place namesb. Languagec. Foodd. Architecturee. Sportf. EducationA. a, b, d, eB. b, d, e, fC. a, b, e, fD. b, c, e, f33. Why does the author use the example of Chinese food in India?A. To show how foreign customs are adapted to suit local conditions.B. To argue that overseas influences have enriched the lives of local people.C. To explain why foreign influences on local culture should be limited.D. To indicate the loss of local cultural traditions resulting from foreign influences.34. In the last part of the passage, the author again refers to his village to show _________ .A. life there has improved a lotB. its culture has become less IndianC. culture continues to change over timeD. his disapproval of modern youth35. The main purpose of the passage is to ______ .A. informB. persuadeC. describeD. criticiseCAre you an optimist? Do you look at your glass andsee it as half full? Do you believe that every cloud has asilver lining and that generally things turn out for the best?Do you believe that if something is meant to be, it will be?If you reply "yes" to all of these questions, then you are an optimist. You probably are enthusiastic,cheerful and outgoing. You may well be successful at work and in love.But you may be misguided because things don't turn out for the best. You may believe that when one door closes another one opens (for example,you may fail to land a new job,another chance will come around soon), Wrong. When one door closes, another door slams in your face. That's bitter reality.Now a book has been published which confirms what we pessimists(悲观者)have suspected all along. It's called The Positive Power of Defensive Pessimism. Its author argues that defensive pessimism can lead to positive results. Defensive pessimism is a strategy used to manage fear,anxiety and worry. Defensive pessimists prepare for things by setting low outcomes for themselves. They carefully consider everything that may go wrong and plan for ways to handle these problems. And this gives them a sense of control. Lawrence Sanno, a psychology professor, says, "What's interesting about defensive pessimists is that they tend to be very successful people, so their low opinion of the situation's outcomes is not realistic. They use it to motivate themselves to perform better. ”So far, so good. This is not rocket science. Defensive pessimists prepare carefully and consider what might go wrong, whether at work, on a date or even in a sports game. It makes sense to have a back-up plan. There are many sayings in English urging caution. For example, “Don't put all your eggs in one basket," and “ Don't count your chickens until they hatch. “ To have a confident and optimistic approach to life's problems is good. But listen to what Woody Alien ,the American comedian says, ”Confidence is what you have before you understand the problem.“There are pros and cons to being an optimist and a pessimist. Don't feel bad if you see the glass half empty. You are a realist. But lighten up and hook up with someone who sees the same glass half full.36. What is the passage mainly about?A. A book that has recently been published.B. The dangers of being too optimistic.C. The benefits of defensive pessimism.D. How to become successful in life.37. The underlined word “ it" in paragraph 3 refers to_____.A. the final outcomeB. their low opinionC. people's motivationD. their performance38. The underlined sentence “This is not rocket science" in paragraph 4 means_____.A. the cost is not so highB. there is no real proofC. it's not a dangerous thing to doD. it is quite simple to understand39. The writer would probably describe himself as_____.A. an optimistB. a realistC. a defeatistD. a scientist40. Which of the following English expressions would a defensive pessimist believe?A. “Every cloud has a silver lining.”B.“The glass is half full not half empty.”C.“Whatever will be, will be.”D. “Don't put all your eggs in one basket.”DDuring lectures, my students often ask which is the most difficult language to learn. It's not easy to answer because there are many factors to take into consideration. For a person's first language these factors are unimportant because people learn their mother tongue naturally. So the question of how hard a language is to learn is only relevant when learning a second language.Studies have shown that native speakers of Spanish find Portuguese much easier to learn than, say, native speakers of Chinese, because Portuguese is very similar to Spanish, while Chinese is very different. So a person's first language affects their learning of a second language. The greater the differences between a second language and the first, the harder it will be for most people to learn. Many Westerners think that Chinese is the hardest language to learn because of its writing system and pronunciation. But for Japanese speakers, who already use Chinese characters in their own language, learning writing is less difficult than for speakers of languages using the Roman alphabet.A recent study reported that British embassy staff found that the second hardest language to learn was Japanese. More surprising was the language that they found most problematic — Hungarian. In this case the issue was not the writing system (as both English and Hungarian use a similar alphabet) but grammatical complexity. Hungarian has 35 cases (forms of a noun according to whether it is subject, object, genitive, etc. ) and it was this that caused the British diplomatic personnel most difficulty. One suspects they would have even more problems with Tabassaran, a Caucasianlanguage with 48 cases, if they ever had to learn it.Teachers and the circumstances in which a language is learned also play important roles,as does each learner's motivation for learning. If people learn a language because they need to use it professionally, they often learn it faster than people studying a language that has no direct use in their day-to-day life.Put simply,no language is easy Io learn well,though languages which are related to our first language are easier. Learning a completely different writing system is a huge challenge, but that does not necessarily make a language more difficult than another. In the end, it is impossible to say that there is one language that is the most difficult language in the world.41. According to the passage, who is likely to have the most difficulty learning a new language?A. A Korean person learning French.B. A Spanish person learning Portuguese.C. A German person learning English.D. A Chinese person learning Japanese.42. Which language do British embassy staff find most difficult to learn? .A. Japanese.B. Caucasian.C. Hungarian.D. Tabassaran.43. Which of the following is NOT mentioned as a factor affecting language learning?A. The amount of time spent studying the new language.B. The environment in which language learning takes place.C. The reasons a person has for learning the new language.D. The similarity between a person's first language and the new language.44. Why does the author believe there's no single hardest language?A. All languages are equally difficult to learn well.B. With enough effort, any language can be learned well.C. There is not enough evidence to make any final conclusion.D. People's background and learning situations determine which language is hardest.45. The writer is probably_____.A. a language learnerB. a language teacherC. a newspaper journalistD. an embassy official第二节信息匹配(共5小题;毎小题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。