四川省双流县棠湖中学2014—2015学年高一下学期期中考试英语版含答案
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一、选择题1.(0分)[ID :12420]若四棱锥的三视图如图,则此四棱锥的四个侧面的面积中最大值为( )A .3B .13C .32D .332.(0分)[ID :12411]已知m ,n 是空间中两条不同的直线,α,β为空间中两个互相垂直的平面,则下列命题正确的是( )A .若m α⊂,则m β⊥B .若m α⊂,n β⊂,则m n ⊥C .若m α⊄,m β⊥,则//m αD .若m αβ=,n m ⊥,则n α⊥3.(0分)[ID :12409]如图为某几何体的三视图,则该几何体的表面积为( )A .202π+B .203π+C .242π+D .243π+ 4.(0分)[ID :12399]设圆C :223x y +=,直线l :360x y +-=,点()00,P x y l ∈,若存在点Q C ∈,使得60OPQ ∠=︒(O 为坐标原点),则0x 的取值范围是( ) A .1,12⎡⎤-⎢⎥⎣⎦ B .60,5⎡⎤⎢⎥⎣⎦ C .[]0,1 D .16,25⎡⎤-⎢⎥⎣⎦ 5.(0分)[ID :12358]如图,已知正方体1111ABCD A B C D -中,异面直线1AD 与1A C 所成的角的大小是( )A .30B .60C .90D .1206.(0分)[ID :12357]如图是水平放置的平面图形的斜二测直观图,其原来平面图形面积是( )A . 22B . 42C .4D .8 7.(0分)[ID :12355]已知点A (1,2),B (3,1),则线段AB 的垂直平分线的方程是( )A .4x 2y 5+=B .4x 2y 5-=C .x 2y 5+=D .x 2y 5-=8.(0分)[ID :12351]已知一个三棱锥的三视图如图所示,其中俯视图是等腰直角三角形,则该三棱锥的外接球表面积为 ( )A 3πB .3πC .43πD .12π 9.(0分)[ID :12343]在三棱锥P ABC -中,PA ⊥平面1202,2ABC BAC AP AB ∠=︒==,,,M 是线段BC 上一动点,线段PM 长度最小3P ABC -的外接球的表面积是( )A .92πB .92πC .18πD .40π10.(0分)[ID :12366]已知直三棱柱111ABC A B C -的所有棱长都相等,M 为11A C 的中点,则AM 与1BC 所成角的余弦值为( )A 15B 5C .64D .10411.(0分)[ID :12410]已知三棱锥S ABC -的所有顶点都在球O 的求面上,ABC ∆是边长为1的正三角形,SC 为球O 的直径,且2SC =,则此棱锥的体积为( ) A .26 B 3C .23 D .2212.(0分)[ID :12402]如图,在正方体1111ABCD A B C D -中,M ,N 分别是1BC ,1CD 的中点,则下列说法错误..的是( )A .MN 与1CC 垂直B .MN 与AC 垂直 C .MN 与BD 平行 D .MN 与11A B 平行13.(0分)[ID :12339]某几何体的三视图如图所示,图中的四边形都是边长为4的正方形,两条虚线互相垂直且相等,则该几何体的体积是( )A .1763B .1603C .1283D .3214.(0分)[ID :12332]长方体的三个相邻面的面积分别为2,3,6,则该长方体外接球的表面积为( )A .72πB .56πC .14πD .64π15.(0分)[ID :12334]如图,在三棱柱111ABC A B C -中,1CC ⊥平面ABC ,ABC 是等腰三角形,BA BC =,123AC CC ==,,D 是AC 的中点,点F 在侧棱1A 上,若要使1C F ⊥平面BDF ,则1AF FA 的值为( )A .1B .12或2C .22或2D .13或3 二、填空题16.(0分)[ID :12460]正方体1111ABCD A B C D -的棱长为1,P 为1CC 上的动点,Q 为1BD 上的动点,则线段PQ 的长度的最小值为______.17.(0分)[ID :12521]已知菱形ABCD 中,2AB =,120A ∠=,沿对角线BD 将ABD △折起,使二面角A BD C --为120,则点A 到BCD 所在平面的距离等于 .18.(0分)[ID :12508]已知P 是抛物线24y x =上的动点,点Q 是圆22:(3)(3)1C x y ++-=上的动点,点R 是点P 在y 轴上的射影,则PQ PR +的最小值是____________.19.(0分)[ID :12465]将正方形ABCD 沿对角线BD 折成直二面角A BD C --,①AB 与平面BCD 所成角的大小为60②ACD ∆是等边三角形③AB 与CD 所成的角为60④AC BD ⊥⑤二面角B AC D --为120︒则上面结论正确的为_______.20.(0分)[ID :12445]正四棱锥P ABCD -底面的四个顶点,,,A B C D 在球O 的同一个大圆上,点P 在球面上.若163P ABCD V ,则球O 的体积是______. 21.(0分)[ID :12443]已知B 与点()1,2,3A 关于点()0,1,2M -对称,则点B 的坐标是______.22.(0分)[ID :12441]如上图所示,在正方体1111ABCD A B C D -中,,M N 分别是棱1AB CC 、的中点,1MB P ∆的顶点P 在棱1CC 与棱11C D 上运动,有以下四个命题:A .平面1MB P 1ND ⊥; B .平面1MB P ⊥平面11ND A ;C .∆1MB P 在底面ABCD 上的射影图形的面积为定值;D .∆1MB P 在侧面11D C CD 上的射影图形是三角形.其中正确命题的序号是__________.23.(0分)[ID :12499]若圆C :222430x y x y ++-+=,关于直线260ax by ++=对称,则由点(),a b 向圆所作的切线长的最小值为______.24.(0分)[ID :12437]在正方体1111ABCD A B C D -中,①BD 平面11CB D ②直线AD 与1CB 所成角的大小为60︒ ③1AA BD ⊥ ④平面11A BC ∥平面1ACD请把所有正确命题的序号填在横线上________.25.(0分)[ID :12456]已知四面体ABCD 的外接球球心O 在棱CD 上,3,CD=2,则A 、B 两点在四面体ABCD 的外接球上的球面距离是________.三、解答题26.(0分)[ID :12585]如图,ABCD 是正方形,O 是该正方体的中心,P 是平面ABCD 外一点,PO ⊥平面ABCD ,E 是PC 的中点.(1)求证://PA 平面BDE ;(2)求证:BD ⊥平面PAC .27.(0分)[ID :12562]如图,已知四棱锥P −ABCD 的底面ABCD 是菱形,PA ⊥平面ABCD ,点F 为PC 的中点.(1)求证:PA ∥平面BDF ;(2)求证:PC ⊥BD .28.(0分)[ID :12618]如图,矩形ABCD 的两条对角线相交于点M(2,0),AB 边所在直线的方程为x -3y -6=0,点T(-1,1)在AD 边所在直线上.求:(1) AD 边所在直线的方程;(2) DC 边所在直线的方程.29.(0分)[ID :12615]若圆M 的方程为22(2)(5)10x y -+-=,△ABC 中,已知(1,1)A ,(4,2)B ,点C 为圆M 上的动点.(1)求AC 中点D 的轨迹方程;(2)求△ABC 面积的最小值.30.(0分)[ID :12534]如图,在三棱锥P ABC -中,PA ⊥平面ABC ,且2PA AB BC ===,2 2.AC =-为鳖臑;(1)证明:三棱锥P ABC--的余弦值.注:在《九章算术》中鳖臑(2)若D为棱PB的中点,求二面角D AC P是指四面皆为直角三角形的三棱锥.【参考答案】2016-2017年度第*次考试试卷参考答案**科目模拟测试一、选择题1.C2.C3.B4.B5.C6.C7.B8.C9.C10.D11.A12.D13.B14.C15.B二、填空题16.【解析】【分析】首先根据数形结合分析可知线段的长度的最小值转化为在平面上投影线段的最小值然后转化为点到直线的距离的最小值【详解】当平面时线段与其在平面上投影相等当与平面不平行时是斜线段大于其在平面上17.【解析】【分析】【详解】设AC与BD交于点O在三角形ABD中因为∠A=120°AB=2可得AO=1过A作面BCD的垂线垂足E则AE即为所求由题得∠AOE=180°−∠AOC=180°−120°=6018.【解析】根据抛物线的定义可知而的最小值是所以的最小值就是的最小值当三点共线时此时最小最小值是所以的最小值是3【点睛】本题考查了点和圆的位置关系以及抛物线的几何性质和最值问题考查了转化与化归能力圆外的19.②③④【解析】【分析】作出此直二面角的图象由图形中所给的位置关系对命题逐一判断即可得出正确结论【详解】作出如图的图象E是BD的中点易得∠AED=90°即为此直二面角的平面角对于命题①AB与平面BCD20.【解析】【分析】正四棱锥底面的四个顶点在球的同一个大圆上则棱锥的高等于球的半径由此可由棱锥体积求得球的半径从而得球体积【详解】∵正四棱锥底面的四个顶点在球的同一个大圆上∴球心是正方形对角线交点是棱锥21.【解析】【分析】根据空间直角坐标系中点坐标公式求结果【详解】设B则所以所以的坐标为【点睛】本题考查空间直角坐标系中点坐标公式考查基本分析求解能力属基础题22.【解析】由正方体的几何性质对4个命题进行判断对于A当动点P与点重合时以等腰三角形与不垂直所以不能得出平面A为假命题;对于B易证所以平面所以平面⊥平面故B 为真命题;对于C在底面上的射影图形的面积为定值23.4【解析】因为圆=关于直线=对称所以圆心在直线=上所以即又圆的半径为当点(ab)与圆心的距离最小时切线长取得最小值又点(ab)与圆心的距离为=所以切线长的最小值为=故答案为4点睛:本题主要考查直线与24.①③④【解析】【分析】利用线面平行的判定定理判断①;由异面直线所成角判断②;由线面垂直的性质判断③;由面面平行的判定定理判断④【详解】对于①如下图所示由于则四边形为平行四边形则面面所以平面故①正确;25.【解析】【分析】根据球心到四个顶点距离相等可推断出O 为CD 的中点且OA =OB =OC =OD 进而在△A0B 中利用余弦定理求得cos∠AOB 的值则∠AOB 可求进而根据弧长的计算方法求得答案【详解】解:球心三、解答题26.27.28.29.30.2016-2017年度第*次考试试卷 参考解析【参考解析】**科目模拟测试一、选择题1.C解析:C【解析】【分析】由四棱锥的三视图,还原几何体如图,可证得,CD PD ⊥CB PB ⊥,分别计算四个侧面三角形的面积,比较即得解.【详解】由四棱锥的三视图,还原几何体如图,其中底面ABCD 为矩形,PA ⊥平面ABCD由于,,CD AD CD PA ADPA A CD ⊥⊥=∴⊥平面PAD ,CD PD ∴⊥同理可证:CB PB ⊥ 1111222,2332222PAB PAD S PA AB S PA AD ∆∆∴=⨯=⨯⨯==⨯=⨯⨯= 111122332,213132222PBC PCD S PB BC S CD PD ∆∆=⨯=⨯==⨯=⨯= 故四棱锥的四个侧面的面积中最大值为32故选:C【点睛】本题考查了利用三视图还原几何体,侧面三角形面积的计算,考查了学生空间想象,逻辑推理,数学运算的能力,属于中档题.2.C解析:C【解析】由题设,,αβ⊥ 则A. 若m α⊂,则m β⊥,错误;B. 若m α⊂,n β⊂,则m n ⊥ 错误;D. 若m αβ⋂=,n m ⊥,当n β⊄ 时不能得到n α⊥,错误.故选C.3.B解析:B【解析】 该几何体是一个正方体与半圆柱的组合体,表面积为2215221122032S πππ=⨯+⨯⨯+⨯⨯=+,故选B . 4.B解析:B【解析】【分析】圆O 外有一点P ,圆上有一动点Q ,OPQ ∠在PQ 与圆相切时取得最大值.如果OP 变长,那么OPQ ∠可以获得的最大值将变小.因为sin QO OPQ PO∠=,QO 为定值,即半径,PO 变大,则sin OPQ ∠变小,由于(0,)2OPQ π∠∈,所以OPQ ∠也随之变小.可以得知,当60OPQ ∠=︒,且PQ 与圆相切时,2PO =,而当2PO >时,Q 在圆上任意移动,60OPQ ∠<︒恒成立.因此,P 的取值范围就是2PO ,即满足2PO ,就能保证一定存在点Q ,使得60OPQ ∠=︒,否则,这样的点Q 是不存在的.【详解】由分析可得:22200PO x y =+又因为P 在直线l 上,所以00(36)x y =--要使得圆C 上存在点Q ,使得60OPQ ∠=︒,则2PO故22220000103634PO x y y y ==+-+ 解得0825y ,0605x 即0x 的取值范围是6[0,]5,故选:B .【点睛】解题的关键是充分利用几何知识,判断出2PO ,从而得到不等式求出参数的取值范围. 5.C解析:C【解析】【分析】在正方体1111ABCD A B C D -中,利用线面垂直的判定定理,证得1AD ⊥平面1A DC ,由此能求出结果.【详解】如图所示,在正方体1111ABCD A B C D -中,连结1A D ,则1AD DC ⊥,11A D AD ⊥, 由线面垂直的判定定理得1AD ⊥平面1A DC ,所以11AD AC ⊥, 所以异面直线1AD 与1A C 所成的角的大小是90.故选C .【点睛】本题主要考查了直线与平面垂直的判定与证明,以及异面直线所成角的求解,其中解答中牢记异面直线所成的求解方法和转化思想的应用是解答的关键,平时注意空间思维能力的培养,着重考查了推理与论证能力,属于基础题.6.C解析:C【解析】分析:由三视图还原实物图,再根据三角形面积公式求解.详解:在斜二测直观图中OB=2,OA=2, 所以在平面图形中OB=2,OA=4, OA ⊥OB , 所以面积为12442S =⨯⨯=. 选C.点睛: 1.解答此类题目的关键是由多面体的三视图想象出空间几何体的形状并画出其直观图. 2.三视图中“正侧一样高、正俯一样长、俯侧一样宽”,因此,可以根据三视图的形状及相关数据推断出原几何图形中的点、线、面之间的位置关系及相关数据. 7.B解析:B【解析】【分析】【详解】因为线段AB 的垂直平分线上的点(),x y 到点A ,B 的距离相等,=.即:221244x x y y +-++- 229612x x y y =+-++-,化简得:425x y -=.故选B .8.C解析:C【解析】【分析】的等腰直角三角形,与底面垂直的侧面是个等腰三角形,底边长为2,高为2,故三棱锥的外接球与以棱长为2的正方体的外接球相同,由此可得结论【详解】由三视图知几何体是一个侧棱与底面垂直的三棱锥,与底面垂直的侧面是个等腰三角形,底边长为2,高为2,故三棱锥的外接球与以棱长为2的正方体的外接球相同,其直径为∴三棱锥的外接球体积为343π⨯=故选C【点睛】本题主要考查了三视图,几何体的外接球的体积,考查了空间想象能力,计算能力,属于中档题.9.C解析:C【解析】【分析】首先确定三角形ABC 为等腰三角形,进一步确定球的球心,再求出球的半径,最后确定球的表面积.【详解】解:如图所示:三棱锥P ABC -中,PA ⊥平面2,2ABC AP AB ==,,M 是线段BC 上一动点,线段PM 3则:当AM BC ⊥时,线段PM 达到最小值,由于:PA ⊥平面ABC ,所以:222PA AM PM +=,解得:1AM =, 所以:3BM =,则:60BAM ∠=︒,由于:120BAC ∠=︒,所以:60MAC ∠=︒则:ABC 为等腰三角形. 所以:23BC =在ABC 中,设外接圆的直径为2324r ==, 则:2r =, 所以:外接球的半径2229222R ⎛⎫=+= ⎪ ⎪⎝⎭, 则:94182S ππ=⋅⋅=,故选:C .【点睛】本题考查的知识要点:三棱锥的外接球的球心的确定及球的表面积公式的应用.10.D解析:D【解析】【分析】取AC 的中点N ,连接1C N ,则1//AM C N ,所以异面直线AM 与1BC 所成角就是直线AM 与1C N 所成角,在1BNC ∆中,利用余弦定理,即可求解.【详解】由题意,取AC 的中点N ,连接1C N ,则1//AM C N ,所以异面直线AM 与1BC 所成角就是直线AM 与1C N 所成角,设正三棱柱的各棱长为2,则115,22,3C N BC BN ===,设直线AM 与1C N 所成角为θ,在1BNC ∆中,由余弦定理可得222(5)(22)(3)10cos 42522θ+-==⨯⨯, 即异面直线AM 与1BC 所成角的余弦值为104,故选D .【点睛】本题主要考查了异面直线所成角的求解,其中解答中把异面直线所成的角转化为相交直线所成的角是解答的关键,着重考查了推理与运算能力,属于基础题.11.A解析:A【解析】【分析】【详解】根据题意作出图形:设球心为O ,过ABC 三点的小圆的圆心为O 1,则OO 1⊥平面ABC ,延长CO1交球于点D,则SD⊥平面ABC.∵CO1=233 323⨯=,∴116 133OO=-=,∴高SD=2OO1=263,∵△ABC是边长为1的正三角形,∴S△ABC=34,∴132623436S ABCV-=⨯⨯=三棱锥.考点:棱锥与外接球,体积.【名师点睛】本题考查棱锥与外接球问题,首先我们要熟记一些特殊的几何体与外接球(内切球)的关系,如正方体(长方体)的外接球(内切球)球心是对角线的交点,正棱锥的外接球(内切球)球心在棱锥的高上,对一般棱锥来讲,外接球球心到名顶点距离相等,当问题难以考虑时,可减少点的个数,如先考虑到三个顶点的距离相等的点是三角形的外心,球心一定在过此点与此平面垂直的直线上.如直角三角形斜边中点到三顶点距离相等等等.12.D解析:D【解析】【分析】先利用三角形中位线定理证明//MN BD,再利用线面垂直的判定定理定义证明MN与1CC垂直,由异面直线所成的角的定义证明MN与AC垂直,即可得出结论.【详解】如图:连接1C D,BD,在三角形1C DB 中,//MN BD ,故C 正确.1CC ⊥平面ABCD ,1CC BD ∴⊥,MN ∴与1CC 垂直,故A 正确;AC BD ,//MN BD ,MN ∴与AC 垂直,B 正确;∵//MN BD ,MN ∴与11A B 不可能平行,D 错误故选:D .【点睛】本题主要考查了正方体中的线面关系,线线平行与垂直的证明,异面直线所成的角及其位置关系,熟记正方体的性质是解决本题的关键.13.B解析:B【解析】该几何体为一个正方体去掉一个倒四棱锥,其中正方体棱长为4,倒四棱锥顶点为正方体中心,底面为正方体上底面,因此体积是32116042433-⨯⨯=,选B. 点睛: 1.解答此类题目的关键是由多面体的三视图想象出空间几何体的形状并画出其直观图.2.三视图中“正侧一样高、正俯一样长、俯侧一样宽”,因此,可以根据三视图的形状及相关数据推断出原几何图形中的点、线、面之间的位置关系及相关数据.14.C解析:C【解析】【分析】由题意首先求得长方体的棱长,然后求解其外接球的表面积即可.【详解】设长方体的棱长分别为,,a b c ,则236ab bc ac =⎧⎪=⎨⎪=⎩,所以()236abc =,于是213a b c =⎧⎪=⎨⎪=⎩,设球的半径为R ,则2222414R a b c =++=,所以这个球面的表面积为24R π=14π. 本题选择C 选项.【点睛】与球有关的组合体问题,一种是内切,一种是外接.解题时要认真分析图形,明确切点和接点的位置,确定有关元素间的数量关系,并作出合适的截面图,如球内切于正方体,切点为正方体各个面的中心,正方体的棱长等于球的直径;球外接于正方体,正方体的顶点均在球面上,正方体的体对角线长等于球的直径.15.B解析:B【解析】【分析】易证1BD C F ⊥,故要使1C F ⊥平面BDF ,只需1C F DF ⊥,然后转化到平面11AAC C 中,根据勾股定理计算,即可得结果.【详解】1CC ⊥平面ABC ,BD ⊂平面ABC ,所以1BD CC ⊥,又BA BC =,D 为AC 中点,所以BD AC ⊥,又1AC CC C =,所以BD ⊥平面11AAC C ,1C F 平面11AAC C ,所以1C F BD ⊥,因为DF BD D =,故要使1C F 平面BDF ,只需1C F DF ⊥,在四边形11AAC C 中,1231AC CC AD CD ====,,, 设AF x =,则13FA x =-,由22211C D DF C F =+得()()2219143x x ⎡⎤+=+++-⎣⎦, 即2320x x -+=,解得1x =或2x =, 所以112AF FA =或者12AF FA =, 故选:B.【点睛】本题考查了棱柱的结构特征,考查了空间中直线与平面的垂直的性质,勾股定理,考查空间想象能力和推理能力,属于中档题.二、填空题16.【解析】【分析】首先根据数形结合分析可知线段的长度的最小值转化为在平面上投影线段的最小值然后转化为点到直线的距离的最小值【详解】当平面时线段与其在平面上投影相等当与平面不平行时是斜线段大于其在平面上 解析:22【解析】【分析】首先根据数形结合分析可知线段PQ 的长度的最小值转化为PQ 在平面ABCD 上投影线段的最小值,然后转化为点到直线的距离的最小值.【详解】当//PQ 平面ABCD 时,线段PQ 与其在平面ABCD 上投影相等,当PQ 与平面ABCD 不平行时,PQ 是斜线段,大于其在平面ABCD 上投影的长度, ∴求线段PQ 的最小值就是求其在平面ABCD 上投影的最小值,点P 在平面ABCD 的投影是点C ,点Q 在平面ABCD 的投影在BD 上,∴求线段PQ 的最小值转化为点C 到BD 的距离的最小值,连接,AC BD ,交于点O ,AC BD ⊥,∴点C 到BD 的距离的最小值22CO =.故答案为:22【点睛】 本题考查几何体中距离的最小值,意在考查空间想象能力和数形结合分析问题的能力,属于中档题型.17.【解析】【分析】【详解】设AC 与BD 交于点O 在三角形ABD 中因为∠A =120°AB =2可得AO =1过A 作面BCD 的垂线垂足E 则AE 即为所求由题得∠AOE =180°−∠AOC =180°−120°=60解析:32 【解析】 【分析】 【详解】 设AC 与BD 交于点O . 在三角形ABD 中,因为∠A =120°,AB =2.可得AO =1.过A 作面BCD 的垂线,垂足E ,则AE 即为所求.由题得,∠AOE =180°−∠AOC =180°−120°=60°.在RT △AOE 中,AE =AO•sin ∠AOE =32. 18.【解析】根据抛物线的定义可知而的最小值是所以的最小值就是的最小值当三点共线时此时最小最小值是所以的最小值是3【点睛】本题考查了点和圆的位置关系以及抛物线的几何性质和最值问题考查了转化与化归能力圆外的解析:【解析】根据抛物线的定义,可知1PR PF =-,而PQ 的最小值是1PC -,所以PQ PR +的最小值就是2PF PC +-的最小值,当,,C P F 三点共线时,此时PF FC +最小,最小值是()()2231305CF =--+-= ,所以PQ PR +的最小值是3.【点睛】本题考查了点和圆的位置关系以及抛物线的几何性质和最值问题,考查了转化与化归能力,圆外的点和圆上的点最小值是点与圆心的距离减半径,最大值是距离加半径,抛物线上的点到焦点的距离和到准线的距离相等,这样转化后为抛物线上的点到两个定点的距离和的最小值,即三点共线时距离最小.19.②③④【解析】【分析】作出此直二面角的图象由图形中所给的位置关系对命题逐一判断即可得出正确结论【详解】作出如图的图象E是BD的中点易得∠AED=90°即为此直二面角的平面角对于命题①AB与平面BCD解析:②③④【解析】【分析】作出此直二面角的图象,由图形中所给的位置关系对命题逐一判断,即可得出正确结论.【详解】作出如图的图象,E是BD的中点,易得∠AED=90°即为此直二面角的平面角对于命题①AB与平面BCD所成的线面角的平面角是∠ABE=45°,故AB与平面BCD成60°的角不正确;对于命题②,在等腰直角三角形AEC中AC等于正方形的边长,故△ACD是等边三角形,此命题正确;对于命题③可取AD中点F,AC的中点H,连接EF,EH,FH,则EF,FH是中位线,故∠EFH或其补角为异面直线AB与CD所成角,又EF,FH其长度为正方形边长的一半,而EH是直角三角形AEC的中线,其长度是AC的一半即正方形边长的一半,故△EFH是等边三角形,由此AB与CD所成的角为60°,此命题正确;对于命题④,BD⊥面AEC,故AC⊥BD,此命题正确;对于命题⑤,连接BH,HD,则BH⊥AC, DH⊥AC,则∠BHD为二面角B AC D--的平面角,又32,cos∠BHD=-1,3故二面角B AC D--不是120︒综上知②③④是正确的故答案为②③④【点睛】本题考查与二面角有关立体几何中线线之间的角的求法,线面之间的角的求法,以及线线之间位置关系的证明方法.综合性较强,对空间立体感要求较高.20.【解析】【分析】正四棱锥底面的四个顶点在球的同一个大圆上则棱锥的高等于球的半径由此可由棱锥体积求得球的半径从而得球体积【详解】∵正四棱锥底面的四个顶点在球的同一个大圆上∴球心是正方形对角线交点是棱锥 解析:323π 【解析】【分析】正四棱锥P ABCD -底面的四个顶点,,,A B C D 在球O 的同一个大圆上,则棱锥的高等于球的半径,由此可由棱锥体积求得球的半径,从而得球体积.【详解】∵正四棱锥P ABCD -底面的四个顶点,,,A B C D 在球O 的同一个大圆上,∴球心O 是正方形ABCD 对角线交点,PO 是棱锥的高,设球半径为R ,则2AB R =,22(2)2ABCD S R R ==,211162333P ABCD ABCD V S PO R R -==⨯⨯=,2R =, ∴3344322333V R πππ==⨯=球. 故答案为:323π. 【点睛】本题考查球的体积,考查正四棱锥与半球的截接问题.解题关键是确定球半径与正四棱锥中的线段长之间的关系.21.【解析】【分析】根据空间直角坐标系中点坐标公式求结果【详解】设B 则所以所以的坐标为【点睛】本题考查空间直角坐标系中点坐标公式考查基本分析求解能力属基础题解析:()1,4,1--【解析】【分析】根据空间直角坐标系中点坐标公式求结果.【详解】设B (),,x y z ,则1230,1,2222x y z +++=-==,所以1,4,1x y z =-=-=,所以B 的坐标为()1,4,1--.【点睛】本题考查空间直角坐标系中点坐标公式,考查基本分析求解能力,属基础题. 22.【解析】由正方体的几何性质对4个命题进行判断对于A 当动点P 与点重合时以等腰三角形与不垂直所以不能得出平面A 为假命题;对于B 易证所以平面所以平面⊥平面故B 为真命题;对于C 在底面上的射影图形的面积为定值 解析:BC【解析】由正方体的几何性质对4个命题进行判断,对于A ,当动点P 与点1D 重合时,MNP ∆以等腰三角形,PM 与1ND 不垂直,所以不能得出平面11MB P ND ⊥,A 为假命题;对于B ,易证11111ND MB MB A D ⊥⊥,,所以1MB ⊥平面11ND A ,所以平面1MB P ⊥平面11ND A ,故B 为真命题;对于C ,∆ 1MB P 在底面ABCD 上的射影图形的面积为定值,因为1MB P ∆在底面ABCD 的射影是三角形,底边是MB ,点P 在底面的射影在CD 上,到MB 的距离不变,若正方体棱长为a 时,则射影面积为214a 为定值,所以C 为真命题;对于D ,当P 点与点1C 重合时,则点1B 与点P 的投影重合,此时∆ 1MB P 在侧面11D C CD 上的射影图形是线段,不是三角形,故D 是假命题。
2018年春棠湖中学高一年级开学考试英语试题本试卷分第Ⅰ卷 (选择题) 和第II卷 (非选择题) 两部分,共150分。
考试时间120分钟。
第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节 (共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the man mean?A. Tom will come with his mother.B. Tom is visiting his mother.C. Tom will be unable to come.2. Where does the conversation probably take place?A. In a hotel.B. In a library.C. In a laboratory.3. What is the man going to do?A. He wants the woman to fix his watch.B. He will call her when the watch is fixed.C. He wants her to fix the watch within one week.4. Who painted the house?A. Henry.B. Henry’s friend.C. Someone else.5. How much money do they have between them?A. $46.B. $86.C. $56.第二节 (共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从每题所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
2014届高三上学期第一次阶段性评估检测英语试题第I卷(共三部分,满分100分)第一部分听力(共两节,满分20分)做题时,先将答案划在试卷上。
录音内容结束后,你将有时间将听力部分第一节和第二节上面的答案转涂到答题卡上。
第一节(共5小题,每小题1分,满分5分)听下面5段对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What is the man trying to do?A. Use diet pills.B. Lose 50 poundsC. Improve health.2. What does the woman look at?A. A train arriving in Beijing.B. A time table.C. Pictures of the trains from Shanghai to Beijing.3. What do we know about the woman?A. She is confident.B. She is supportive.C. She is active.4. What is the man doing?A. Offering help.B. Giving permission.C. Asking for suggestion.5. What does the woman imply?A. The tickets will sell out quickly.B. There will be extra tickets at the rock concert.C. Each person will be allowed to buy only one ticket.第二节(共15小题;每小题1分,满分15分)听下面5段对话或独白。
2020年春四川省棠湖中学高一第二学月考试英语试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
3.考试结束后,将本试卷和答题卡一并交回。
第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
例:How much is the shirt?A. £19.15.B. £9.18.C. £9.15.答案是C。
1.What time does the museum close on Sundays?A.At 3:00 pm. B.At 4:00 pm. C.At 5:00 pm.2.How will the woman probably go to the gallery?A.By bus. B.By subway. C.By car.3.In what aspect is the man weak in Chinese?A.Reading. B.Writing. C.Speaking.4.Where will the speakers have dinner?A.At a café on Green Street.B.At a Japanese restaurant.C.At their house.5.How did the woman plan to get to Red Square at first?A.By subway. B.By taxi. C.By bus.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
高2016届第一学期期中考试(时间90分钟总分150分)试卷和答题卷使用说明:各题均按答题要求, 将答案直接写在答题卷相应的番号后。
第Ⅰ卷英语知识运用(共两节,满分 60 分)第一节.单项填空(共 10 小题,每小题 2分;满分 20 分)1. —How about Thursday morning? Say, 10 o’clock?— OK. I’ll be expecting you then.A. That’s settled.B. Is tha t right?C. How are you doing?D. No way!2. The first time you talk to a stranger, you should try to ______ him about the personal affairs.A. keep askingB. keep to askC. avoid askingD. avoid to ask3. Research shows that people feel unhappy and worried when they have nothing to do . _______, the happiest are those who are busy.A. In shortB. In factC. As a resultD. For one thing4. What great changes! It’s years since I ____ Chengdu last time.A. had leftB. leftC. have leftD. had been left5. — I went to see a film yesterday.— Oh, did you? ______.A. So I didB. I did soC. So do ID. So did I6.The questions the reporter asked sometimes were ______ and they made me _______.A.embarrassed;embarrassing B.embarrassed;embarrassedC.embarrassing;embarrassed D.embarrassing;embarrassing7. The scenery in the desert is quite different from _____ by the seaside.A. thatB. itC. oneD. which8.After the new technique was introduced,the factory produced ________ cars in 2005 as the yearbefore.A.more than twice B.as twice as manyC.twice as many as D. more than twice as many9. Professor Von teaches ______ art in ______ university in America.A. 不填; anB. 不填; aC. the; aD. an; an10. He is someone I would rather _______ than _____.A. to avoid; to meetB. avoid; to meetC. avoid; meetD. to avoid; meet第二节、完形填空 (共20小题;每小题2分,满分40分)AIn 1970, five women scientists __11__ the sea for two weeks. They wanted to __12__ that women could do the same work __13__ men.Their underwater house was made of steel, and was in two parts. Each part had two rooms . One room was the wet chamber( 会议厅). Another was the “ control center”. The third room was __14__ food and equipment. The fourth was the living room. There they could eat, sleep, listen to __15__radio and watch television.The scientist explored the sea four or five times a day. Sometimes they even worked during the night. They 16__ different kinds of fish. Plants and other things were gathered from the seabed. When necessary, they _17_ photographs with special cameras.When they left their underwater home, they felt quite__18__. Later, newspapermen asked them, “Would you like to have _19__under the sea?”“Oh, yes, we’d love to. If men can__20__ oceans on the moon, we’ll go and explore them too.” They answered.11. A. went to B. stayed on C. traveled on D. lived in12. A. prove B. announce C. suggest D. know13. A. with B. of C. as D. from14. A. used for B. put with C. prepared for D. stored in15. A. / B. a C. an D. the16. A. looked at B. watched C. caught D. ate17. A. got B. printed C. made D. took18. A. sick B. sad C. satisfactory D. valuable19. A. another adventure B. the second trip C. once more stay D. next work20. A. search B. come to C. find D. look forB阅读下面短文,按句子结构的语法性和上下文连贯的要求,自选词汇或用括号中词语的正确形式填空。
2019年春四川省棠湖中学高一第一学月考试英语试卷第Ⅰ卷选择题(100分)第一部分:听力(共两节,满分30分)做题时,先将答案标在试卷上,录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the woman suggest the man do?A. Stop eating fast food.B. Eat more fruit.C. Check his weight.2. What will the man do?A. Lock the cupboard.B. Ask Jim for help.C. Move the cupboard himself.3. What are the speakers mainly talking about?A. Staying home.B. Reducing air pollution.C. Enjoying fresh air.4. Where will the man put the playing cards?A. By the TV.B. Under the table.C. On the bookcase.5. What does the woman say about Jack?A. He wears glasses.B. He likes dancing.C. He has short hair.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题。
从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间,每段对话或独白读两遍。
第Ⅰ卷选择题(共90分)一、单项选择(共 10 小题;每小题 1 分;满分 10 分)从A、B、C、D四个选项中选出最佳选项,并在答题卡上相应番号处将该项涂黑。
1. It is generally accepted that________ boy must learn to stand up and fight like________ man.A. a; aB. a; theC. the; theD. a;/2. ―Are you satisfied with his answer?―Not at all. It couldn't have been ______.A. worseB. badlyC. betterD. the worst3. After the new technique was introduced,the factory produced ________ cars in 2005 as the year before.A. more than twiceB. as twice as manyC. twice as many asD. more than twice as many7. We don't do it in this way now, but it ________in this way.A. used to doB. used to be doneC. was used to be doneD. was used to doing8. The girl is clever and she always ______ good ideas whenever she is in trouble.A. comes aboutB. comes up withC. comes outD. comes up9. ―Is this the first time you _________Chengdu?―Yes. It is a very beautiful city!A. have visitedB. are visitingC. visitD. visited10. ―Which English book do you think I should buy, sir?―______________. You’re supposed to have ideas on your own.A. I’ve got that.B. That’s settled.C. With pleasure.D. It’s up toyou.二、完形填空(共20小题;每小题1.5分;满分30分)The ability to forgive (原谅) is a great thing that can certainly help one to makelife happier. However, some people think that it is very 11 , and they don’t know howto forgive, 12 their family members and friends. This is all because they don’t understand the meaning of "forgiveness".In the dictionary, “to forgive” means “to 13 the feeling of anger with somebody that has done 14 bad to you”. I’m happy that many people have 15 indoing this. I have succeeded, too, and I 16 how hard it is.I lived with a friend in a(n) 17 for two years. During that time, he did cause me a great deal of 18 , so I didn’t want to stay with him any longer. I got 19 easily when communicating with him. 20 , we had a talk about our problems. When he 21 that I wasn’t treating him like a friend, I was surprised. I never knew that I also neededto be forgiven for doing something wrong. At the same time, I 22 that, no matter howangry I might get, I did love my friend deep in my heart, 23 . Then I understood the saying, “To 24 is to forgive.” And when we forgive, we feel 25 . At the end ofthe talk, my friend 26 me and said, “I’m sure we can 27 those bad moments, because our 28 has become fresh again.” I had to agree. 29 we decided to forgiveeach other, things have changed 30 . Now I still remember it and understand the importanceof forgiveness better.11. A. useless B. hard C. strange D. late12. A. certainly B. naturally C. especially D. probably13. A. stop B. finish C. keep D. admit14. A. everything B. nothing C. anything D. something15. A. succeeded B. continued C. involved D. enjoyed16. A. think B. know C. doubt D. believe17. A. family B. office C. building D. house18. A. trouble B. sorrow C. fear D. danger19. A. disappointed B. frightened C. angry D. sad20. A. Firstly B. Suddenly C. Fortunately D. Finally21. A. took out B. pointed out C. gave out D. found out22. A. recognized B. realized C. decided D. guessed23. A. in all B. as a result C. after all D. at last24. A. love B. help C. understand D. smile25. A. great B. proud C. open D. relaxed26. A. laughed at B. shot at C. shouted at D. looked at27. A. reduce B. forget C. pass D. consider28. A. connection B. dream C. friendship D. idea29. A. If B. Until C. Before D. When30. A. generally B. normally C. completely D. frequently三、阅读理解(共两节,满分50分)第一节阅读下面短文,从四个选项中选出最佳选项。
2018-2019学年四川省棠湖中学高一下学期第一次月考英语试题第Ⅰ卷选择题(100分)第一部分:听力(共两节,满分30分)做题时,先将答案标在试卷上,录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the woman suggest the man do?A. Stop eating fast food.B. Eat more fruit.C. Check his weight.2. What will the man do?A. Lock the cupboard.B. Ask Jim for help.C. Move the cupboard himself.3. What are the speakers mainly talking about?A. Staying home.B. Reducing air pollution.C. Enjoying fresh air.4. Where will the man put the playing cards?A. By the TV.B. Under the table.C. On the bookcase.5. What does the woman say about Jack?A. He wears glasses.B. He likes dancing.C. He has short hair. 第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题。
从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
2019年春四川省棠湖中学高一第一学月考试英语试卷第Ⅰ卷选择题(100分)第一部分:听力(共两节,满分30分)做题时,先将答案标在试卷上,录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the woman suggest the man do?A. Stop eating fast food.B. Eat more fruit.C. Check his weight.2. What will the man do?A. Lock the cupboard.B. Ask Jim for help.C. Move the cupboard himself.3. What are the speakers mainly talking about?A. Staying home.B. Reducing air pollution.C. Enjoying fresh air.4. Where will the man put the playing cards?A. By the TV.B. Under the table.C. On the bookcase.5. What does the woman say about Jack?A. He wears glasses.B. He likes dancing.C. He has short hair. 第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题。
从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间,每段对话或独白读两遍。
棠湖中学2017-2018年度高一下学期期末教学质量检测性考试英语试题第I卷选择题(100分)第一部分听力(共两节,满分30分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题纸上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What will the man probably do during his holiday?A. Do his work.B. Travel to Qingdao.C. Climb some mountains.2. What is wrong with the man's food?A. It’s hot.B. It’s salty.C. It’s tasteless.3. How much did the woman buy her watch for?A. $1000.B. $800.C. $200.4. What are the speakers mainly talking about?A. Their biology teacher.B. The woman’s parents.C. The pet of the class.5. Where does the conversation take place?A. In a bookstore.B. In a library.C. In a classroom.第二节(共15小题:每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
2014-2015学年度下期高2014级英语半期考试试卷本试卷分第I卷(选择题)和第II卷(非选择题)两部分。
第I卷第一部分听力(共两节,满分30分)第一节(共20小题:每小题 1.5分,满分30分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C、D四个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.Why is the man late?A. His car was out of gas.B. He had a car accident.C. He went back for clean clothes.2. How does the man probably go shopping?A. On foot.B. By car.C. By bike.3. What is the probable relationship between the speakers?A. Workmates.B. Brother and sister.C. Husband and wife.4. What would the speakers probably do today?A. Go to a clothes show.B. Go to a book market.C. Stay at home.5. What do some scientists think of the advertisements on TV?A. They are too boring.B. They are good for eyes.C. They are a waste of time.听第6段材料,回答第6至7题。
6. What does the woman want to do now`?A. Visit someone.B. Call someone up.C. Answer the phone.7. What will the speakers do first after the conversation?A. Repair the phone.B. Go next door.C. Cross the street.听第7段材料,回答第8至10题。
8. Where does the conversation take place?A. At a school.B. At an airport.C. At a restaurant.9. What is the woman worried about now?A. How to live and study.B. What plans to make.C. Where to study.10. What does the man plan to do in Los Angeles?A. Run an American music school.B. Study music and become a singer.C. Learn how to direct music performance.听第8段材料,回答第11至13题。
1l.What are the speakers mainly talking about?A. Moving their factory.B. Buying a new building.C. Offering a bus service.12.What is the advantage of the plan according to the man?A. Their image can be improved.B. More workers can be attracted.C. The production can be increased.13 .What is the woman afraid of?A. Workers will have difficulty going to work.B. There will not be enough money.C. Head office will stop work.听第9段材料,回答第14至17题。
l4. When will the woman leave for Quebec City?A. In a few daysB.Next summer.C. This summer.I5.Why is the woman worried?A. She can’t speak French well.B. She doesn’t have friends in Canada.C .She can’t find her way to Quebec City.16. What do we know about Montreal?A. It is the capital of Quebec Province.B. It is the biggest city in Quebec Province.C. It is far away from the 5t. Lawrence Riper.17. What can we learn from the conversation?A.Only French is spoken in Montreal.B. All the buildings in Quebec City are old.C. Most people in Montreal speak French.听第10段材料,回答第18至20题。
18.What are the listeners going to do on Saturday afternoon?A. Ride their bicycles.B. Climb the mountains.C. Listen to a talk19. What are the listeners going to do after dinner an Saturday evening?A. Play baseball.B. Do water sports.C. Watch a programme20. What time wi11 the half marathon begin on Sunday?A. At 7:30 am.B. At 9:00 am.C.At 1:30 pm.第二部分阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
AThere is an English saying, “Laughter is the best medicine.”Until recently,few people took the saying seriously.Now,however,doctors have begun to look into laughter and the effects it has on the human body.They have found that laughter really can improve people’s health.Tests were carried out to study the effects of laughter on the body.People watched funny films while doctors checked their heart,blood pressure,breathing and muscles.It was found that laughter has similar effects on physical exercise. It increases blood pressure,the heart beating and breathing;it also works several groups of muscles in the face,the stomach, and even the feet.If laughter exercises the body,it must be beneficial.Other tests have shown that laughter appears to be able to reduce the effect of pain on the body.In one experiment doctors produced pain in groups of students who listened to different radio programs.The group that tolerated(忍耐)the pain for the longest time was the groups which listened to a funny program.The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which diminish both stress and pain.As a result of these discoveries,some doctors in the United States now hold laughter clinics,in which they help to improve their patients’ condition by encouraging them to laugh.They have found that even if their patients do not really feel like laughing,making them smile is enough to produce beneficial effects similar to those caused by laughter.21. Doctors have proved that .ughter can be toleratedughter can work the muscles in the feetguther is the only way to reduce painughter has the same effects on physical exercise22. Which students could tolerate the pain for the longest time?A.Those who listened to different radio programs.B.Those who could produce a kind of chemical.C.Those who don’t have stress of pain.D.Those who listened to a funny program.23. The underlined word “diminish” is similar to .A.testB.stopC.reduceD.increase24.The main idea of the passage is .ughter and physical exercises have similar effects on the human bodyB.smile can produce the same effects as laughterC.pain can be reduced by laughterugher is the best medicineBRecently I visited a history class at a local,low-performing high school where students read in turn from the autobiography of a famous American.The teacher interrupted often with comments and questions.The 18 students seemed to be into it,but it was such an old-fashioned—I guess to some educators—approach that I decided to see what other educators thought of it.Was the read aloud technique bad or good? Was it time-wasting or useful? Read these comments.“I have observed this most often in high school English classes.During aloud reading,I have observed students becoming absent-minded from the teaching.While this may be a proper way for some teaching points,such as pronunciation,stress,fluency,when done for expediency (权宜),I find reading aloud to be ineffective.”—Steve Johnson“We don’tencourage using a lot of teaching time to read aloud in high school English classes.Reading aloud selected passages that are especially difficult or rich in meaning is a frequent practice,but the focus is on the discussion over the text rather than the reading.Another typical use of reading aloud is when the class is reading a drama,especially a Shakespeare play,but our advice is for students to read after preparation rather than doing a cold reading.”—Jim Fliakas“We encourage a method that students practice reading independently,to increase their own fluency and understanding.This is done before sharing ideas with a partner,a group,or with the entire class.This method improves their understanding of the texts which are guided by the teacher.”—Dave LevinIt all depends on the conditions,the students,the goal of the lesson and the style of the teacher.25. In the opinion of Steve Johnson,reading aloud________.A. may cause students to lose concentrationB. is always useful for a particular purposeC. is a good way to involve every studentD. is ineffective in developing students’ fluency,Fliakas meant________.26. By saying “doing a cold reading”A. reading something uninterestingB. reading without preparationC. reading in a cold environmentD. reading while having a coldattitude towards reading aloud technique?27. What is the author’sA. Doubtful.B. Supportive.C. Worried.D. Objective.CA world-famous Canadian author, Margaret Atwood, has created the world's first long-distancesigning device (装置), the LongPen.After many tiring book-signing tours from city to city, Atwood thought there must be a betterway to do them. She hired some technical experts and started her own company in 2004. Togetherthey designed the LongPen. Here's how it works: The author writes a personal message and signatureon a computer tablet (手写板)using a special pen. On the receiving end, in another city, a roboticarm fitted with a regular pen signs the book. The author and fan can talk with each other viawebcams (网络摄像机) and computer screens.Work on the LongPen began in Atwood's basement (地下室) . At first, they had no idea itwould be as hard as it turned out to be. The device went through several versions, including one thatactually had smoke coming out of it. The inventing finally completed, test runs were made in Ottawa,and the LongPen was officially launched at the 2006 London Book Fair. From here, Atwoodconducted two transatlantic book signings of her latest book for fans in Toronto and New York City.The LongPen produces a unique signature each time because it copies the movement of theauthor in real time. It has several other potential applications. It could increase credit card securityand allow people to sign contracts from another province. The video exchange between signer andreceiver can be recorded on DVD for proof when legal documents are used.“It's really fun”said the owner of a bookstore, who was present for one of the test runs.“Obviously you can't shake hands with the author, but there are chances for a connection that youdon't get from a regular book signing.”The response to the invention hasn't been all favorable. Atwood has received criticism fromauthors who think she's trying to end book tours. But she said, “ It will be possible to go to places that you never got sent to before because the publishers couldn't afford it.”28. Why did Atwood decide to invent the LongPen?A. To set up her own company.B. To win herself greater popularity.C. To write her books in a new way.D. To make book signings less tiring.29. How does the LongPen work?A. It copies the author's signature and prints it on a book.B. It signs a book while receiving the author's signature.C. The webcam sends the author's signature to another city.D. The fan uses it to copy the author's signature himself.30. What do we know about the invention of the LongPen?A. It has been completed but not put into use.B. The basement caught fire by accident.C. Some versions failed before its test run.D. The designers were well-prepared for the difficulty.31. What could be inferred from Paragraphs 5 and 6?A. Atwood doesn't mean to end book tours.B. Critics think the LongPen is of little use.C. Bookstore owners don't support the LongPen.D. Publishers dislike the LongPen for its high cost.DSaint Louis is an amazing city to visit with lots of attractions for the whole family.And you spend too much money.History,sports,and one of the best zoos in the world are only a few ofneedn’tthe places you will love in Saint Louis.The most popular place in Saint Louis is the GatewayArch.Standing at 630 feet,it is the tallest man-made monument (纪念碑) in the country.You can takea ride to the top for an amazing view of the Mississippi River.While you are there,make sure to visitthe Museum of Westward Expansion which is located under the Arch.The Saint Louis Zoo is over 100 years old.And it is widely considered to be one of the best inthe world.Their collection has over 800 species in historic Forest Park.Admission (入场费) is alwaysfree to all visitors.A few other friendly places to visit include the amusement park Six Flags,Steam Boat rides onthe Mississippi River,and exploring a cave that once served as Jesse James’ favorite hideout (藏身Farm.This huge piece of land is 点). If that is not enough to keep you busy then you can visit Grant’shome to a wildlife reserve.Free admission is provided for the whole family,and so is a free ride among elephants and a German beer garden at the end with free Budweiser.You must see this one.An entire day of excitement for nearly no cost.Saint Louis is a great place to visit.There are many family friendly activities at great values.Think about it for your next trip.You deserve to visit Saint Louis.32. The most popular place in Saint Louis is________.A. a German beer gardenB. Forest ParkC. the Saint Louis ZooD. the Gateway Arch33. Where can you visit a wildlife reserve?A. In the Saint Louis Zoo.Farm.B. At Grant’sC. In the Six Flags.D. In the Museum of Westward Expansion.34. The writer wrote this passage to________.A. tell the history of Saint LouisB. show the most popular place in Saint LouisC. introduce Saint Louis and advise readers to visit itD. describe family-friendly activities at great values in Saint Louis35. Where could we read this passage in a newspaper?A. Business.B. Travel.C. News.D. Culture.第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。