上海市青浦区2016-2017学年第一学期九年级期终学业质量调研卷
- 格式:doc
- 大小:235.00 KB
- 文档页数:8
青浦区2016学年第一学期九年级期末学业质量调研测试数学试卷2017.1(完成时间:100分钟 满分:150分 )考生注意:1.本试卷含三个大题,共25题.答题时,考生务必按答题要求在答题纸规定的位置上作答,在草稿纸、本试卷上答题一律无效.2.除第一、二大题外,其余各题如无特别说明,都必须在答题纸的相应位置上写出证明或计算的主要步骤.一、选择题:(本大题共6题,每题4分,满分24分) 1.在下列各数中,属于无理数的是(▲) (A )124;(B(C );(D2.已知a >b ,下列关系式中一定正确的是(▲)(A )22a b <;(B )a 2<b 2;(C )22a b +<+;(D )a -<b -. 3.一次函数1y kx =-(常数0<k )的图像一定不经过的象限是(▲) (A )第一象限;(B )第二象限;(C )第三象限;(D )第四象限. 4. 抛物线224y x =+与y 轴的交点坐标是(▲)(A )(0,2);(B )(0,2-);(C )(0,4);(D )(0,4-). 5.顺次联结矩形(非正方形)四边的中点,所得到的图形一定是(▲) (A )菱形;(B )矩形;(C )正方形;(D )等腰梯形.6.如图1,在梯形ABCD 中,AD //BC ,对角线AC 与BD 相交于点O ,如果:1:2ACD ABC S S ∆∆=,那么:∆∆AOD BOC S S 是(▲) (A )1:3;(B )1:4;(C )1:5;(D )1:6.二、填空题:(本大题共12题,每题4分,满分48分)7.函数的定义域是▲.8.2=的根是▲.9.如果关于x 的一元二次方程220x x m -+=有实数根,那么m 的取值范围是▲.图1ABCDO2231xy x =-10. 从点数为1、2、3的三张扑克牌中随机摸出两张牌,摸到的两张牌的点数之积为素数的概率是▲.11. 将抛物线24y x x =+向下平移3个单位,所得抛物线的表达式是▲.12. 如果点A (2-,1y )和点B (2,2y )是抛物线2(3)y x =+上的两点,那么1y ▲2y .(填“>”、“=”、“<”) 13. 如果一个多边形的内角和是外角和的2倍,那么这个多边形的边数是▲.14.点G 是△ABC 的重心,GD //AB ,交边BC 于点D ,如果BC =6,那么CD 的长是▲.15. 已知在△ABC 中,点D 在边AC 上,且21AD DC =∶∶.设BA a = ,BC b =.那么BD=▲.(用向量a 、b 的式子表示) 16. 如图2,在△ABC 中,∠C =90°,AC =3,BC =2,边AB 的垂直平分线交AC 边于点D ,交AB 边于点E ,联结DB ,那么DBC ∠tan 的值是▲.17.如图3,在平行四边形ABCD 中,点E 在边AD 上,联结CE 并延长,交对角线BD 于点F ,交BA 的延长线于点G ,如果DE=2AE ,那么CF EF EG ∶∶=▲.18.如图4,已知△ABC ,将△ABC 绕点A 顺时针旋转,使点C 落在边AB 上的点E 处,点B 落在点D 处,联结BD ,如果∠DAC =∠DBA ,那么的值是▲.三、解答题:(本大题共7题,满分78分) 19.(本题满分10分)计算:22221(1)121a a a a a a --÷-++++.20.(本题满分10分)解方程组: ① ② 2244410.x xy y x y ⎧-+=⎨++=⎩, B C D E 图2 F GE DC B A 图3 BDAB图4C21.(本题满分10分,第(1)小题6分,第(2)小题4分)已知:如图5,在平面直角坐标系xOy 中,反比例函数的图像与正比例函数(0)y kx k =≠的图像相交于横坐标为2的点A ,平移直线OA , 使它经过点B (3,0),与y 轴交于点C .(1)求平移后直线的表达式; (2)求∠OBC 的余切值.22.(本题满分10分)某校兴趣小组想测量一座大楼AB 的高度.如图6,大楼前有一段斜坡BC ,已知BC 的长为12米,它的坡度i=C 点40米的D 处,用测角仪测得大楼顶端A 的仰角为37°,测角仪DE 的高为1.5米,求大楼AB 的高度约为多少米?(结果精确到0.1米) (参考数据:sin37°≈0.60,cos37°≈0.80,tan37°≈0.751.73≈.)23.(本题满分12分,每小题各6分)已知:如图7,在四边形ABCD 中,AB //CD ,对角线AC 、BD 交于点E ,点F 在边AB 上,联结CF 交线段BE 于点G ,2CG GE GD =⋅.(1)求证:∠ACF =∠ABD ;(2)联结EF ,求证:EF CG EG CB ⋅=⋅.图6GFE CDA B图78y x=24.(本题满分12分,第(1)小题3分,第(2)小题5分,第(3)小题4分)已知:如图8,在平面直角坐标系xOy 中,抛物线241y ax ax =-+与x 轴的正半轴交于点A 和点B ,与y 轴交于点C ,且OB=3OC ,点P 是第一象限内的点,联结BC ,△PBC 是以BC 为斜边的等腰直角三角形. (1)求这个抛物线的表达式; (2)求点P 的坐标;(3)点Q 在x 轴上,若以Q 、O 、P 为顶点的三角形与以点C 、A 、B 为顶点的三角形相似,求点Q 的坐标.25.(本题满分14分,第(1)小题3分,第(2)小题5分,第(36分)已知:如图9,在菱形ABCD 中,AB =5,联结BD ,.点P 上的一个动点(点P 不与点B重合),联结AP ,与对角线BD 相交于点E ,联结EC . (1)求证:AE CE =;(2)当点P 在线段BC 上时,设BP =x ,△PEC 的面积为y ,求y 关于x 的函数解析式,并写出它的定义域;(3)当点P 在线段BC 的延长线上时,若△PEC 是直角三角形,求线段BP 的长.PE DA 图9DCBA 备用图sin ABD ∠=青浦区2016学年第一学期期末学业质量调研九年级数学试卷参考答案及评分说明2017.1一、选择题:1.B ; 2.D ; 3.A ; 4.C ;5.A ;6.B . 二、填空题: 7.1x ≠;8.53x =; 9.1m ≤;10.23; 11.243=+-y x x ; 12.<; 13.六;14.4;15.1233+ a b ; 16.512;17.6:4:5;18.12.三、解答题: 19.解:原式=()()()()221111111-+-⨯++-+a a a a a a . ·············································· (4分) =2111-+++a a a . ······································································· (4分) =11++a a . ················································································· (1分) =1. ······················································································· (1分)20.解:由①得22-=x y 或22-=-x y . ····················································· (2分)原方程可化为221.,-=⎧⎨+=-⎩x y x y 221.,-=-⎧⎨+=-⎩x y x y ············································· (4分) 解得原方程的解是1101,;=⎧⎨=-⎩x y 224313,.⎧=-⎪⎪⎨⎪=⎪⎩x y ··············································· (4分) 21.解:(1)∵横坐标为2的点A 在8y x=的图像上,∴A (2,4). ···················· (1分) ∵A (2,4)在()0=≠y kx k 的图像上,∴2y x =. ········································· (2分)设直线BC 的函数解析式为()110=+≠y k x b k ,由题意得,12=k ,∵B (3,0),∴26y x =-. ································· (3分) (2)∵26y x =-与y 轴交于点C ,∴C (0,6-),∴OC =6.················· (2分) ∴31cot 62∠===OB OBC OC . ·························································· (2分) 22.解:延长AB 交直线DC 于点F ,过点E 作EH ⊥AF ,垂足为点H .由题意,得AF ⊥DC ,HF =ED=1.5,EH =DF ,∠AEH =37°,DC =40.∵i =Rt △BCF 中,设BF =k ,则CF ,BC =2k . ·············· (1分)∵BC =12,∴k =6,∴BF =6,CF = ·············································· (2分)∵DF =DC+CF ,∴DF =40+. ···················································· (1分) 在Rt △AEH 中,∵tan AHAEH EH∠=,∴(tan 374037.8=︒⨯+≈AH . ················· (3分) ∵BH =BF -FH ,∴BH =6-1.5=4.5. ······················································ (1分) ∵AB =AH -HB ,∴AB =37.8 -4.5=33.3.················································· (1分) 答:大楼AB 的高度约为33.3米. ······················································ (1分)23.证明:(1)∵2CG GE GD =⋅,∴CG GDGE CG=.········································· (1分) 又∵∠CGD =∠EGC ,∴△GCD ∽△GEC . ··································· (2分) ∴∠GDC =∠GCE . ································································· (1分) ∵AB ∥CD ,∴∠ABD =∠BDC . ················································· (1分) ∴∠ACF =∠ABD . ·································································· (1分) (2)∵∠ABD =∠ACF ,∠BGF =∠CGE ,∴△BGF ∽△CGE . ········· (1分) ∴FG EGBG CG=. ······································································ (1分) 又∵∠FGE =∠BGC ,∴△FGE ∽△BGC . ···································· (2分)∴=FE EGBC CG. ······································································ (1分) ∴⋅=⋅FE CG EG CB . ····························································· (1分)24.解:(1)∵抛物线241y ax ax =-+,∴点C 的坐标为(0,1). ··················· (1分)∵OB =3OC ,∴点B 的坐标为(3,0). ········································· (1分) ∴91210-+=a a ,∴13a =.∴214133y x x =-+. ····················· (1分)(2)过点P 作PM ⊥y 轴,PN ⊥x 轴,垂足分别为点M 、N .∵∠MPC =90°-∠CPN ,∠NPB =90°-∠CPN ,∴∠MPC =∠NPB . ··········· (1分) ∵PC =PB ,∴△PMC ≌△PNB ,∴PM =PN . ·········································· (1分)设点P (a ,a ).∵22PC PB =,∴()()222213a a a a +-=-+. ······ (1分)解得2a =. ············································································ (1分) ∴ P (2,2). ········································································· (1分) (3)∵该抛物线对称轴为x=2, B (3,0),∴A (1,0). ······················ (1分)∵ P (2,2),A (1,0), B (3,0),C (0,1),∴ PO=AC=AB=2. ············································· (1分) ∵∠CAB =135°,∠POB =45°,∴当△OPQ 与△ABC 相似时,点Q 在点O 左侧.(i )当AC OPAB OQ =时,∴2OQ =,∴OQ=4,∴Q (-4,0). ······· (1分)(ii )当AC OQAB OP =时,∴2=,∴OQ=2,∴Q (-2,0). ······ (1分) 综上所述,点Q 的坐标为(-4,0)或(-2,0).25.解:(1)∵四边形ABCD 是菱形,∴BA =BC ,∠ABD =∠CBD . ······················································ (1分) 又∵BE =BE ,∴△ABE ≌△CBE . ···················································· (1分) ∴AE =CE . ············································································· (1分) (2)联结AC ,交BD 于点O ,过点A 作AH ⊥BC ,过点E 作EF ⊥BC ,垂足分别为点H 、F .∵四边形ABCD 是菱形,∴AC ⊥BD .∵AB =5,sin 5∠=ABD AO =OC =BO =OD = ········ (1分) ∵12AC BD BC AH ⋅=⋅,∴AH =4,BH =3. ································· (1分) ∵AD ∥BC ,∴=AE AD EP BP ,∴++=AE EP AD BPEP BP, ∴5+=AP x EP x ,∴5=+EP xAP x. ················································ (1分) ∵EF ∥AH ,∴=EF PEAH AP , ∴45=+xEF x. ······································································· (1分)∴()()21141025052255-=⋅=-=<<++x x x y PC EF x x x x. ············· (1分) (3)因为点P 在线段BC 的延长线上,所以∠EPC 不可能为直角.(i )当∠ECP =90°时,∵△ABE ≌△CBE ,∴∠BAE =∠BCE =90°, ·································· (1分)∵cos AB BHABP BP AB∠==, ······················································· (1分) ∴535BP =,∴BP =253.···························································· (1分) (ii )当∠CEP =90°时,∵△ABE ≌△CBE ,∴∠ AEB =∠CEB =45°,∴AO OE ==ED ,BE = ···························· (1分) ∵AD ∥BP ,∴AD DEBP BE=, ······················································· (1分)∴5BP =BP =15. ························································ (1分) 综上所述,当△EPC 是直角三角形时,线段BP 的长为253或15.。
上海市静安、青浦区2016届九年级上学期期末质量检测物理试题及答案(本卷满分100分 完卷时间90分钟)考生注意:1.本调研试卷含五个大题。
2.考生务必按要求在答题纸规定的位置上作答,在其他纸张上答题一律无效。
一、单项选择题(共16分)下列各题均只有一个正确选项,请将所选选项的代号用2B 铅笔填涂在答题纸的相应位置上,更改答案时,用橡皮擦去,重新填涂。
1. 一节干电池的电压为 A .1.5伏B .24伏C .110伏D .220伏2. 下列实例中,属于利用大气压的是A .吸尘器B .船闸C .温度计D .订书机3. 下列物质中,其密度跟人体密度最接近的是 A .空气B .水C .铁D .水银4. 下列实例中,属于增大压强的是A .坦克装有履带B .在铁轨下铺设枕木C .刀刃磨得锋利D .滑雪时站在雪橇上5. 关于小磁针,下列描述错误的是A .小磁针能够吸引铁屑 B .小磁针可以指南北 C .小磁针周围存在磁场D .小磁针周围存在磁感线6. 甲、乙是由同种材料制成且长度相等的两导体,若将它们同时以某种方式连入同一电路中,则关于甲、乙的横截面S 及通过电流I 的大小判断中,可能成立的是A .S 甲=S 乙,I 甲<I 乙B .S 甲<S 乙,I 甲>I 乙C .S 甲>S 乙,I 甲=I 乙D .S 甲>S 乙,I 甲<I 乙7.如图1所示,底面积不同的圆柱形容器A 和B 分别盛有甲、乙两种液体,两液面相平,且甲的质量大于乙的质量。
若在两容器中分别加入原有液体后,液面仍保持相平,则此时液体对各自容器底部的压强p A 、p B 和压力F A 、F B 的关系是( )A .p A <pB ,F A =F B B .p A <p B ,F A >F BC .p A >p B ,F A =F BD .p A >p B ,F A >F B8.在图2所示的电路中,电源电压保持不变。
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效 请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效
请 在各题
目的答题区域内作答,
超出
黑色矩形边框限定区域的答案无 效
(请用2B 铅笔填涂下方的考号)
青浦区2016学年第一学期九年级期终学业质量调研测试
数学学科 答题纸 2017.01
学 生__________________ 班级______________ 学校____________________
请 在 各 题 目 的 答 题 区 域 内 作 答,超 出 黑 色 矩 形 边 框 限 定 区 域 的 答 案 无 效
请 勿 折 叠
请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无 效
请 在 各 题 目 的 答 题 区 域 内 作 答,超 出 黑 色 矩 形 边 框 限 定 区 域 的 答 案 无 效
请 在 各 题 目 的 答 题 区 域 内 作 答,超 出 黑 色 矩 形 边 框 限 定 区 域 的 答 案 无 效 请 在 各 题 目 的 答 题 区 域 内 作 答,超 出 黑 色 矩 形 边 框 限 定 区 域 的 答 案 无 效
请 在各
题
目的答题区
域内作答
,超出黑色矩形边框限定区域的答案无 效。
智浪教育 ---普惠英才文库青浦区 2017 学年第一学期九年级期终学业质量调研测试化学试卷(满分 100 分,考试时间90 分钟)考生注意:答题时考生务必按答题要求在答题纸规定的地点上做答,在底稿纸、本试卷上答题一律无效。
可能用到的相对原子质量:H— 1 C— 12 O— 16 Ca— 40一、选择题(共 50 分)以下各题均只有一个正确选项,请将正确选项的代号用2B 铅笔填涂在答题纸相应地点上,改正答案时,用橡皮擦去,从头填涂1.属于化学变化的是A .湿衣晾干B .镁带焚烧C.白腊融化 D .橙子榨汁2.将以下少许物质分别放入水中,充足搅拌,能够获得无色溶液的是A .汽油B .面粉C.硝酸钾D.二氧化锰3.属于纯净物的是A .空气B .碳酸饮料C.盐酸D.水银4.纳米级资料 TiO x能有效去除多种有害气体。
在TiO x中 Ti 的化合价为 +4 ,则 x 为A . 1B . 2 C. 3 D. 45.市场上销售的加钙食盐、加锌食盐、加碘食盐中,“钙、锌、碘”是指A .分子B.原子C.元素D.单质6.以下对符号“ Mg”表示的意义说法错误的选项是A.1 个镁元素 B .1 个镁原子C.金属镁D.镁元素7.化学用语与含义不符合的是A . O2— 1 个氧分子由 2 个氧原子构成B. FeCl2—氯化铁2 5—五氧化二磷D. 2NO 2— 2 个二氧化氮分子C.P O8.以下实验操作中错误的选项是A 、蒸发结晶B 、检查装置气密性C、滴管用毕即插回 D 、测定溶液的pH 9.“物质的量”的符号是A . N B. M C.mol D. n10.日晒海水能够获得食盐固体,其原由是A .受热时食盐的溶解度降低B.受热时食盐的溶解度明显增大C.受热时海水中的水分蒸发D.受热时海水发生疏解11.以下图表示城市家用燃料使用的发展历程(括号内表示主要成分),以下说法错误的选项是蜂窝煤 液化石油气 管道煤气 天然气(碳)(丙烷: C 3H 8)( CO 、H 2、CH 4)(CH 4)A .煤中主要含有碳元素,还含有氢、硫等元素,煤是洁净燃料B .液化石油气是石油炼制过程中的一种产品C .家用燃料焚烧时均放出热量D .煤、石油、天然气都是含碳的燃料12.几种常有物质的 pH 范围以下 物质 酸奶 鸡蛋清 牙膏 肥皂水pH 范围(常温) 4 ~ 5 7 ~ 8 8 ~ 9 10 ~ 11 此中酸性最强的是A. 酸奶B. 鸡蛋清C. 牙膏D. 肥皂水13.以下现象的微观解说中,错误的选项是A. 氢气和液氢都可做燃料 —— 同样物质的分子,其化学性质同样B. “墙内开花墙外香 ” ——分子在不停的运动C.水烧开后易把壶盖冲起 —— 温度高升,分子变大D. 用水银温度计丈量体温原理 —— 温度高升,原子间隔变大14.下边对于某反响微观表示图的说法正确的选项是 (一种小球代表一种元素的原子 )A .该反响中有两种化合物B .反响前后各样元素的化合价都不变C .该反响属于化合反响D .参加反响的甲和乙分子个数比为 4∶ 115.古代一些书法家、画家用墨书写或绘制的字画能够保存很长时间而不变色,这是由于A. 纸的质量好B. 碳的化学性质在常温下比较稳固C. 碳在高温下化学性质开朗D.碳在任何条件下都不与其余物质反响16.加热时需垫石棉网的仪器是A .烧杯B .试管C .焚烧匙D .蒸发皿17.物质 X 是一种可重生绿色能源,其焚烧的化学方程式为X+3O 2点燃2CO 2+3H 2O ,则 X的化学式为A.C 2H 4B. CH 3OHC. C 2H 5OHD. C 2H 618.相关 2CO + O 2 点燃2CO 2 的表达正确的选项是A .一氧化碳和氧气混淆就生成二氧化碳B .一氧化碳和氧气在点燃条件下反响生成二氧化碳C .两个一氧化碳分子和一个氧分子混淆就生成两个二氧化碳分子D . 2g 一氧化碳和 1g 氧气在点燃条件下反响生成 2g 二氧化碳19.霓虹灯让我们的生活亮丽多彩,霓虹灯中填补的气体主假如20.相关分解反响的说法正确的选项是A .反响物必定只有一种B .生成物中必定有单质C.生成物必定只有两种 D .生成物中必定有化合物21.以下实验方案或操作,能达到实验目的是A.查验氢气纯度时,没有听到响声,表示气体已纯净B.证明二氧化碳的密度比空气大,用烧杯罩住一支燃着的蜡烛C.鉴识双氧水和纯水,取样后分别加入 MnO 2,察看现象D.证明氧气能否集满,只好用带火星的木条的方法22.必定温度下,向必定量的水中加入硝酸钾固体,溶液的某些物理量跟着加入硝酸钾固体的质量变化而变化的图象如右图,则图示中纵坐标的物理量不行能为A .溶液质量B .溶液的质量分数C.溶液密度D.硝酸钾的溶解度23.用灯帽盖灭酒精灯,其主要的灭火原理是A .隔断空气B .消除可燃物C.降低酒精的着火点 D .使温度降到酒精的着火点以下24.实验室测定空气中氧气的体积分数,以以下图所示,若要实验成功,以下说法正确的选项是A.红磷一熄灭就能够翻开夹子B.实验中水的量能够任意C.红磷的量要足量来[源ZXXK]D.仅把红磷换成碳粉,实验也会成功25. t℃时,向一支盛有 0.15 g 熟石灰的烧杯中加入 50 g 水,充足振荡后静置,烧杯底部仍有未溶解的白色固体。
2016学年第一学期九年级期末学业质量调研测试化学试卷(满分100分,考试时间90分钟)考生注意:1.答题时考生务必按答题要求在答题纸规定的位置上做答,在草稿纸、本试卷上答题一律无效。
可能用到的相对原子质量:H—1 C—12 O—16 S—32 Fe—56 Cu—65 Zn—65一、选择题(共50分)下列各题均只有一个正确选项,请将正确选项的代号用2B铅笔填涂在答题纸相应位置上,更改答案时,用橡皮擦去,重新填涂1.空气成分中,体积分数最大的是A.氧气 B.氮气 C.二氧化碳 D.稀有气体2.纳米二氧化钛(TiO2)可净化室内空气,TiO2中Ti的化合价为A.-4 B.-2 C.+2 D.+43.气体与空气混合后遇明火,可能发生爆炸的是A.氢气 B.二氧化碳 C.氮气 D.氦气4.物质中,属于纯净物的是A.锈铁钉 B.山泉水 C.液态氧 D.鲜牛奶5.不属于碳元素的同素异形体的是A.金刚石 B.石墨 C.碳60 D.一氧化碳6.物质性质的表述中,属于物理性质的是A.氮气无色无味 B.碳酸易分解 C.硫具有可燃性 D.盐酸有酸性7.青少年成长需要充足的蛋白质和钙。
这里的“钙”是指A.物质 B.原子 C.元素 D.分子8.“低能耗”、“低废水”、“低废弃物”是低碳理念的重要内涵。
下列做法不符合“低碳”要求的是A.纸张双面使用 B.冬天将空调温度调得很高C.循环使用生活用水 D.减少使用一次性筷子9.物质在氧气中燃烧,火星四射、生成黑色固体的是A.镁条 B.木炭 C.红磷 D.铁丝10.家庭常用液体的pH如下,其中碱性最强的是A.洁厕精:1.0 B.洗发露:7.6 C.洗衣液:10.5 D.漂白液:13.411.关于物质的性质和用途说法中,错误的是A.碳具有还原性,用于冶炼金属B.氧气具有可燃性,用于火箭发射C.氮气常温下化学性质稳定,用于食品防腐D.稀有气体在通电时会发出不同颜色的光,用于制成各种灯具12.化学反应前后肯定发生变化的是A.原子数目 B.原子质量 C.物质种类 D.元素种类13.在“家庭小实验”中不能达到预期目的是A.将铅笔芯粉末放入锁芯,使开锁更容易B.向洗净的碎鸡蛋壳中加入一些醋精可制得二氧化碳C.用点燃的方法可区别天然气和煤气D.把6B的铅笔芯和导线连接,接通电源观察灯泡是否发亮,可验证石墨的导电性14.化学用语表达中,正确的是A.2个氧分子:2O B.一氧化碳:CoC.3个氦分子:3He D.氧化钠:NaO15.粗盐提纯的操作步骤如下图,相关说法错误的是A.图中“操作1”是称量 B.溶解时用玻璃棒搅拌C.过滤时用玻璃棒引流 D.蒸发至滤液被蒸干后移去酒精灯16.以下词语或俗语的有关化学原理解释中不合理的是A.钻木取火——通过摩擦使可燃物的着火点升高B.人要实,火要虚——增大燃料与空气的接触面积使燃烧更充分C.真金不怕火炼——金的化学性质不活泼D.没有金刚钻,不揽瓷器活——金刚石硬度大17.以下实验操作中,正确的是18.以下安全措施错误的是A.燃放烟花爆竹时,远离人群和可燃物B.天然气泄漏,立即关闭阀门并开窗通风C.正在使用的家用电器着火,立即用水浇灭D.燃着的酒精灯不慎碰倒,洒出的酒精在桌面上燃烧起来,立即用湿布盖灭19.某化学学习小组的同学辨析以下说法,其中正确的是A.喝汽水后打嗝,压强减小气体的溶解度变小B.废弃电池埋到土壤中,减少对环境的污染C.将适量的硝酸铵固体溶于水,会使溶液的温度显著升高D.被雨水淋湿的自行车,须先用干布擦净后才能用带油的布擦20.碳酸氢铵(NH4HCO3)是一种氮肥,受热易分解使肥效损失。
一、单项选择题1. 一节干电池的电压为()A.1.5V B.24V C.110V D.220V【答案】A【解析】试题分析:一节干电池的电压是1.5V,家庭电路的电压是220V,故应选A。
考点:电压2. 下列实例中,属于利用大气压的是()A.吸尘器B.船闸C.温度计D.订书机【答案】A【解析】试题分析:吸尘器是利用大气压工作的;船闸的原理是连通器;温度计的原理是液体的热胀冷缩;订书机的原理是杠杆;故应选A。
考点:大气压强3. 下列物质中,其密度跟人体密度最接近的是()A.空气B.水C.铁D.水银【答案】B【解析】试题分析:人在水中基本能处于悬浮的状态,人的密度与水的密度差不多;空气的密度远远小于人体的密度,而铁和水银的密度都要比人体的密度大的多;故应选B。
考点:密度4. 下列实例中,属于增大压强的是()A.坦克装有履带B.在铁轨下铺设枕木C.刀刃磨得锋利D.滑雪时站在雪橇上【答案】C【解析】试题分析:坦克装有履带是通过增大受力面积减小压强的;在铁轨下铺设枕木是通过增大受力面积减小压强的;刀刃磨得锋利是通过减小受力面积增大压强的;滑雪时站在雪橇上是通过增大受力面积减小压强的;故应选C。
考点:增大和减小压强的方法5. 关于小磁针,下列描述错误的是()A.小磁针能够吸引铁屑B.小磁针可以指南北C.小磁针周围存在磁场D.小磁针周围存在磁感线【答案】D6. 甲、乙是由同种材料制成且长度相等的两导体,若将它们同时以某种方式连入同一电路中,则关于甲、乙的横截面S及通过电流I的大小判断中,可能成立的是()A.S甲=S乙,I甲<I乙B.S甲<S乙,I甲>I乙C.S甲>S乙,I甲=I乙D.S甲>S乙,I甲<I乙【答案】C【解析】试题分析:如果横截面积相等,则电阻一定相等,不论串联还是并联接入电路,电流都应相等,故A错;横截面积较大的导线的电阻较小,如果串联接入电路,电流相等;如果并联接入电路,则电阻小的电流较大,故C正确,BD错;应选C。
青浦区学年第一学期教学质量调研测试卷英语试卷Part 1 Listening(第一部分听力)I. Listening Comprehension(听力理解):(共30分)A. Listen and choose the right picture(根据你听到的内容,选出相应的图片):(共6分)1._______2._______3._______4._______5._______6._______B. Listen to the dialogue and choose the best answer to the question you hear (根据你听到的对话和问题,选出最恰当的答案):(共8分)7.A)Rainy B)Cloudy C)Sunny D)Stormy8.A)Chemistry B)Geography C)Maths D)Physics9.A)Half an hour B)one hour C)two hours D)one and a half hour10.A)Stay at home B)Take a lesson C)See a movie D)learn Chinese11.A) Because her grandpa hurt his legB) Because she needs to see a doctorC) Because her grandpa talks with the bossD) Because she has found the task12.A) In a hospital B)In a library C)In a supermarket D)In a restaurant13.A) He will work for another three hours.B) He is too tired and he will stop working.C) He’s glad to have a cup of coffee when he finishes his report.D) He will have a cup of coffee before going on working.14.A)The sports team B)The plan for the new yearC) The school newspaper D)The new tennis clubC. Listen to the passage and tell whether the following statements are true or false.15. The speech is about the agreements for the Swimming Competition next Saturday.16. The students will meet at the school library before going to the city Swimming Pool.17. The school will prepare the sports uniforms and sports shoes for the students that day.18. The students need to bring their own food and drinks because the shop nearby is too small.19. When the students get there, they should remember to run around the pool first.20. From the speech we can know that the speaker is responsible for the swimmers.D. Listen to the passage and complete the following sentences.21. It was very dark. Ben could hear ________ ________outside his home.22. Ben’s father was putting pieces ________ ________ over the windows.23. Ben was helping his mom with the dinner when the rain began to ________ ________ .24. Ben could not sleep at first. Finally, he fell asleep at ________ ________ a.m.25. The next day Ben and his family helped ________ ________the neighborhood.Part 2 Phonetics, Vocabulary and GrammarII. Choose the best answer (选择最恰当的答案)26. Which of the following underlined parts is pronounced /au/?A)know B)narrow C)Brown D)owner27.It is said that _______ new amusement park will be built in the west of Shanghai in the future.A)a B)an C)the D)/28.In China everyone would go home for a family reunion _______New Year’s Eve.A)at B)on C)to D)in29.Jackie Chen, who was awarded an Oscar, told the reporter that he was proud ______ his country.A)of B)with C)for D)out30.The visitors on the ship can enjoy the beautiful lights on ______ sides of the Huangpu River.A)Neither B)either C)both D)all31.After the girl finished her performance, the judges pointed out ______ mistakes to her politely.A)few B)a few C)little D)a little32.The boss asked the manager how many _______ he would need to finish the project.A)people B)time C)money D)food33.The students are talking pictures at school gate. They look _______ in their new uniforms.A)strangely B)kingly C)happily D)lovely34.For foreigners who are interested in Chinese gardens, Suzhou is one of _______ places to visit.A)attractive B)more attractive C)most attractive D)the most attractive35.The captain says that all the seatbelts ______ be fastened(抓紧)before the plane takes off.A)can B)may C)must D)should36.As a great badminton player, John ______ three medals by the end of last year.A)wins B)won C)has won D)had won37.When the earthquake ______, most of the villagers were working in the fields.A)happens B)happened C)will happen D)would happen38.They spent a lot of time _______ for the opening ceremony. And it was a great success.A)prepare B)prepared C)to prepare D)preparing39.The teacher often encourages the students ________ to their pen friends in English.A).write B)to write C)wrote D)writing40.The volunteers are very happy to help in the hospital _______ the work there is hard and dirty.A)though B)until C)if D)unless41.The boy tried to fool the farmers again, _______ this time no one believed him.A)and B)or C)but D)so42._______exciting football match it was! People all over the world watched it on TV last night.A)How B)What C)What a D)What an43.The citizens of Troy didn’t realize that the enemies came back again in the darkness, ______?A)did they B)didn’t they C)were they D)weren’t they44.I took away your umbrella by mistake yesterday .I’m sorry about that.________45.We are going to have a picnic next weekend. Would you like to join us?________A)I agree with you B)So do I C)Sure, I’d love to D)I think so, too答案:26-30 CABAC 31-35 BADDC 36-40 DBDBA 41-45 CDABCⅢ.Complete the following passage with the words or phrases in the box. Each can only be used once.(将下列单词或词组的字母代号填入空格。
青浦区2017学年九年级语文第一学期期终学业质量调研测试试卷青浦区2017学年九年级语文第一学期期终学业质量调研测试试卷2018.1注意事项:1.本试卷共27题。
2.试卷满分150分,考试时间100分钟。
3.请将所有答案写在答题纸的指定位置上,试卷上的答案一律不计分。
一、文言文(40分)一)默写(15分)1.夜来城外一尺雪,万物皆静寂。
(《卖炭翁》)2.四面竹树环合,一径通幽处。
(《小石潭记》)3.XXX断何处,楼阁月明如画。
(《诉衷情》)4.己所不欲,勿施于人,不逾矩。
(《孔孟论学》)5.采菊东篱下,悠然见南山,但使愿无违。
(《归园田居》)二)阅读下面这首诗,完成第6-7题(4分)XXX扬州初逢席上见赠XXXXXX凄凉地,二十三年弃置身。
怀旧空吟闻笛赋,到乡翻似烂柯人。
沉舟侧畔千帆过,病树前头万木春。
今日听君歌一曲,暂凭杯酒长精神。
6.标题中“XXX”是指唐代诗人XXX。
(2分)7.下列对诗歌理解错误的一项是(2分)A.首联以“凄凉地”“弃置身”表达了无限辛酸和愤懑不平之情B.XXX用两个典故,表达对故人的怀念和恍如隔世的感慨C.颈联以“沉舟”“病树”比喻前人,表达诗人积极进取的情怀D.尾联点明酬赠题意,既是对友人关怀的感谢,也是和友人共勉三)阅读下文,完成第8-10题(9分)生于忧患,死于安乐①XXX发于畎亩之中,XXX说举于版筑之间,胶鬲举于鱼盐之中,XXX吾举于士,XXX举于海,XXX举于市。
②故天将降大任于是人也,必先苦其心志,劳其筋骨,饿其体肤,空乏其身,行拂乱其所为,所以动心忍性,曾益其所不能。
③人恒过,然后能改;困于心,衡于虑,而后作;征于色,发于声,而后喻。
入则无法家拂士,出则无敌国外患者,国恒亡。
④然后知生于忧患,而死于安乐也。
8.本文选自《荀子》家的经典著作《荀子》。
(3分)9.用现代汉语翻译下面句子。
(3分)人恒过,然后能改。
10.下列理解正确的一项是(3分)A.第①段用六位贤臣的事例来引出论题B.第②段提出文章的中心论点C.第③段从反面论述磨难对人生的意义D.第④段的结论既适用于个人,也适用于国家四)阅读下文,完成第11—13题(12分)把握时代机遇,建设美好家园11.文章的主题是______。
青浦区2016学年第一学期九年级期末学业质量调研测试数学试卷2017.1(完成时间:100分钟满分:150分)考生注意:1.本试卷含三个大题,共 25 题.答题时,考生务必按答题要求在答题纸规定的位置上作答,在草稿纸、本试卷上答题一律无效.2.除第一、二大题外,其余各题如无特别说明,都必须在答题纸的相应位置上写出证明或计算的主要步骤.一、选择题:(本大题共6题,每题4分,满分24分)1.在下列各数中,属于无理数的是(B)122(B)6;;(D)327.(A)42;(C) 32.已知a>b,下列关系式中一定正确的是(D)(A)a2<b2;(B)2a<2b;(C)a+2<b+2;(D)-a<-b.3.一次函数y=kx-1(常数k<0)的图像一定不经过的象限是(A)(A)第一象限;(B)第二象限;(C)第三象限;(D)第四象限.4.抛物线y=2x2+4与y轴的交点坐标是(C)(A)(0,2);(B)(0,-2);(C)(0,4);(D)(0,-4).5.顺次联结矩形(非正方形)四边的中点,所得到的图形一定是(A)(A)菱形;(B)矩形;(C)正方形;(D)等腰梯形.6.如图1,在梯形ABCD中,AD//BC,对角线AC与BD相交于点O, A D 如果S∆ACD:S∆ABC=1: 2,那么S∆AOD:S∆BOC是(B)O(A)1: 3;(B)1: 4;(C)1: 5;(D)1: 6.B C图1二、填空题:(本大题共12题,每题4分,满分48分)7.函数y=x的定义域是x ≠1 .x -1x = 58.方程= 23 x- 1 的根是.3m ≤1 9.如果关于x的一元二次方程x2-2x+m=0有实数根,那么m的取值范围是.10. 从点数为1、2、3的三张扑克牌中随机摸出两张牌,摸到的两张牌的点数之积为素数的概率是2.311.将 抛 物 线 y = x 2+ 4x 向 下 平 移 3个 单 位 , 所 得 抛 物 线 的 表 达 式是y = x 2 + 4 x -3.12. 如果点 A ( -2 , y )和点 B ( 2 , y )是抛物线 y = ( x + 3)2上的两点,那么12y 1 < y 2 .(填“>”、“=”、“<”)13. 如果一个多边形的内角和是外角和的 2 倍,那么这个多边形的边数是 六. 14. 点 G 是△ABC 的重心,GD //AB ,交边 BC 于点 D ,如果 BC =6,那么 CD 的长是 4 .15. 已知在△ABC 中,点 D 在边 AC 上,且 AD ∶DC = 2∶1 .设 BA = a , BC = b .那么BD =1 a +2 b.(用向量 a 、 b 的式子表示)3 316. 如图 2,在△ABC 中,∠C=90°,AC=3, BC=2,边 AB 的垂直平分线交 AC 边于点 D , 交 AB 边于点 E ,联结 DB ,那么 tan ∠DBC 的值是5.1217. 如图 3,在平行四边形 ABCD 中,点 E 在边 AD 上,联结 CE 并延长,交对角线 BD 于点 F ,交 BA 的延长线于点 G ,如果 DE=2AE ,那么 CF ∶EF ∶EG = 6 : 4 : 5 .18.如图 4,已知△ABC ,将△ABC 绕点 A 顺时针旋转,使点 C 落在边 AB 上的点 E 处,BD-1点 B 落在点 D 处,联结 BD ,如果∠DAC=∠DBA ,那么5的值是 . AB 2GCAEDCFDBCAEB图 3AB图 2图 4三、解答题:(本大题共 7 题,满分 78 分)19.(本题满分 10 分)2 a - 2÷ ( a - 1) + a 2-1计算:.a + 1 a 2+2 a +1解:原式= 2 (a - 1) ⨯ 1 + (a + 1)(a -1) .( )a + 1a -12a +1= a2+ 1 + a a+-11 . a +1=a +1.=1.20. (本题满分 10 分)解方程组:⎧x2- 4xy + 4 y 2= 4, ①⎨⎩x + y + 1 = 0.②解:由①得 x - 2 y = 2 或 x - 2 y = -2 .⎧x - 2 y = 2,⎧x - 2 y = -2, 原方程可化为 ⎨ ⎨⎩x + y = -1. ⎩x + y = -1.⎧x = - 4,⎧x 1 3 = 0, ⎪ 2解得原方程的解是 ⎨ y ⎨1⎩= -1; 1⎪ =⎪ y2 .⎩ 321.(本题满分 10 分,第(1)小题 6 分,第(2)小题 4 分) 8已知:如图 5,在平面直角坐标系 xOy 中,反比例函数 y = 的图像与正比例函数y = kx ( k ≠ 0) 的图像相交于横坐标为 2 的点 A ,平移直线 OA , x使它经过点 B (3,0),与 y 轴交于点 C . yA(1)求平移后直线的表达式;(2)求∠OBC 的余切值.Ox图 5解:(1)∵横坐标为 2 的点 A 在 y =8x 的图像上,∴A (2,4).∵A (2,4)在 y = kx (k ≠ 0) 的图像上,∴ y = 2x .设直线 BC 的函数解析式为 y = k 1 x + b (k 1 ≠ 0) ,由题意得, k 1 = 2 ,∵B (3,0),∴ y = 2 x - 6 .(2)∵ y = 2 x - 6 与 y 轴交于点 C ,∴C (0, -6 ),∴OC =6.∴ cot ∠OBC = OC OB = 63 = 12 .22.(本题满分 10 分)某校兴趣小组想测量一座大楼 AB 的高度.如图 6,大楼前有一段斜坡 BC ,已知 BC 的长为 12 米,它的坡度 i =1: 3 .在离 C 点 40 米的 D 处,用测角仪测得大楼顶端 A 的仰角为 37°,测角仪 DE 的高为 1.5 米,求大楼 AB 的高度约为多少米?(结果精确到 0.1 米)(参考数据:sin37°≈0.60,cos37°≈0.80,tan37°≈0.75, 3 ≈ 1.73 .)ABE DC图 6解:延长 AB 交直线 DC 于点 F ,过点 E 作 EH ⊥AF ,垂足为点 H .由题意,得 AF ⊥DC ,HF = ED=1.5,EH =DF ,∠AEH =37°,DC =40.∵i =1: 3 ,在 Rt △BCF 中,设 BF =k ,则 CF = 3k ,BC = 2k .∵BC =12,∴k =6,∴BF =6,CF = 6 3 .∵DF = DC +CF ,∴DF = 40 + 6 3 .在 Rt △AEH 中,∵ tan ∠AEH = EH AH,∴ AH = tan 37︒⨯ ( 40 + 63 )≈ 37.8 .∵BH =BF -FH ,∴BH =6 -1.5=4.5. ∵AB =AH -HB ,∴AB =37.8 -4.5=33.3. 答:大楼 AB 的高度约为 33.3 米.23.(本题满分 12 分,每小题各 6 分)已知:如图 7,在四边形 ABCD 中,AB //CD ,对角线 AC 、BD 交于点 E ,点 F 在边 ABA上,联结 CF 交线段 BE 于点 G , CG 2= GE ⋅GD .(1)求证:∠ACF =∠ABD ; FDE (2)联结 EF ,求证: EF ⋅ CG = EG ⋅CB .GBC图 7证明:(1)∵ CG 2= GE ⋅GD ,∴CG =GD.GE CG又∵∠CGD=∠EGC,∴△GCD∽△GEC.∴∠GDC=∠GCE.∵AB∥CD,∴∠ABD=∠BDC.∴∠ACF=∠ABD.(2)∵∠ABD=∠ACF,∠BGF=∠CGE,∴△BGF∽△CGE.∴FG = EG.BG CG又∵∠FGE=∠BGC,∴△FGE∽△BGC.∴FE = EG.BC CG∴ FE⋅CG=EG⋅CB.24.(本题满分 12 分,第(1)小题3分,第(2)小题5分,第(3)小题4分)已知:如图8,在平面直角坐标系xOy中,抛物线y=ax2-4ax+1与x轴的正半轴交于点A和点B,与y轴交于点C,且OB=3OC,点P是第一象限内的点,联结BC,△PBC 是以BC为斜边的等腰直角三角形.(1)求这个抛物线的表达式;(2)求点P的坐标;(3)点Q在x轴上,若以Q、O、P为顶点的三角形与以点C、A、B为顶点的三角形相似,求点Q的坐标.yPCO A B x图8解:(1)∵抛物线y=ax2-4ax+1,∴点C的坐标为(0,1).∵OB=3OC,∴点B的坐标为(3,0).∴ 9a-12a+1=0,∴ a=13.∴ y=13x2-43x+1.(2)过点P作PM⊥y轴,PN⊥x轴,垂足分别为点M、N.∵∠MPC=90°-∠CPN,∠NPB=90°-∠CPN,∴∠MPC=∠NPB.∵PC=PB,∴△PMC≌△PNB,∴PM=PN.设点P(a,a).∵PC2=PB2,∴a2+(a-1)2=(a-3)2+a2.解得a=2.∴ P(2,2).(3)∵该抛物线对称轴为x=2,B(3,0),∴A(1,0).∵ P(2,2),A(1,0),B(3,0),C(0,1),∴ PO=2 2 ,AC= 2 2 ,AB= 2 .∵∠CAB=135°,∠POB=45°,∴当△OPQ与△ABC相似时,点Q在点O 左侧.(i)当ACAB=OQOP时,∴ 22=2OQ2,∴OQ=4,∴Q(-4,0).(ii)当AC = OQ 时,∴ 2 = OQ ,∴OQ=2,∴Q(-2,0).AB OP 2 2 2综上所述,点Q的坐标为(-4,0)或(-2,0).25.(本题满分 14 分,第(1)小题3分,第(2)小题5分,第(3)小题6分)已知:如图9,在菱形ABCD中,AB=5,联结BD,sin∠ABD= 5 .点P是射线BC5上的一个动点(点P不与点B重合),联结AP,与对角线BD相交于点E,联结EC.(1)求证:AE=CE;(2)当点P在线段BC上时,设BP=x,△PEC的面积为y,求y关于x的函数解析式,并写出它的定义域;(3)当点P在线段BC的延长线上时,若△PEC是直角三角形,求线段BP的长.A D A DEBP C B C图9 备用图解:(1)∵四边形ABCD是菱形,∴BA=BC,∠ABD=∠CBD.又∵BE=BE,∴△ABE≌△CBE.∴AE =CE .(2)联结 AC ,交 BD 于点 O ,过点 A 作 AH ⊥BC ,过点 E 作 EF ⊥BC , 垂足分别为点 H 、F .∵四边形 ABCD 是菱形,∴AC ⊥BD .∵AB =5, sin ∠ABD =55,∴AO =OC =5 ,BO =OD = 2 5 .∵ 12 AC ⋅ BD = BC ⋅ AH ,∴AH =4,BH =3.∵AD ∥BC ,∴ AE = AD ,∴ AE + EP = AD + BP ,EP BP EP BPAP 5 + xEP x∴=,∴=.EP x AP 5 + x∵EF ∥AH ,∴ EF = PE ,AP AH∴ EF = 54+x x .∴ y = 1 PC ⋅ EF = 1 (5 - x ) 4 x = 10 x - 2x2(0 < x < 5) .2 2 5 + x 5 + x (3)因为点 P 在线段 BC 的延长线上,所以∠EPC 不可能为直角.(i )当∠ECP =90°时,∵△ABE ≌△CBE ,∴∠BAE =∠BCE =90°, ∵ cos ∠ABP = BPAB=BHAB ,∴ BP 5 = 53 ,∴BP = 253 .(ii )当∠CEP =90°时,∵△ABE ≌△CBE ,∴∠ AEB =∠CEB =45°,∴ AO = OE = 5 ,∴ ED = 5 , BE = 3 5 .∵AD ∥BP ,∴ AD BP = DEBE ,∴ 5 =5,∴BP =15.BP 3 525综上所述,当△EPC 是直角三角形时,线段 BP 的长为 3 或 15.。
青浦区2016学年第一学期教学质量调研测试卷英语试卷Part 1 Listening(第一部分听力)I. Listening Comprehension(听力理解):(共30分)A. Listen and choose the right picture(根据你听到的内容,选出相应的图片):(共6分)1._______2._______3._______4._______5._______6._______B. Listen to the dialogue and choose the best answer to the question you hear (根据你听到的对话和问题,选出最恰当的答案):(共8分)7.A)Rainy B)Cloudy C)Sunny D)Stormy8.A)Chemistry B)Geography C)Maths D)Physics9.A)Half an hour B)one hour C)two hours D)one and a half hour10.A)Stay at home B)Take a lesson C)See a movie D)learn Chinese11.A) Because her grandpa hurt his legB) Because she needs to see a doctorC) Because her grandpa talks with the bossD) Because she has found the task12.A) In a hospital B)In a library C)In a supermarket D)In a restaurant13.A) He will work for another three hours.B) He is too tired and he will stop working.C) He’s glad to have a cup of coffee when he finishes his report.D) He will have a cup of coffee before going on working.14.A)The sports team B)The plan for the new yearC) The school newspaper D)The new tennis clubC. Listen to the passage and tell whether the following statements are true or false.15. The speech is about the agreements for the Swimming Competition next Saturday.16. The students will meet at the school library before going to the city Swimming Pool.17. The school will prepare the sports uniforms and sports shoes for the students that day.18. The students need to bring their own food and drinks because the shop nearby is too small.19. When the students get there, they should remember to run around the pool first.20. From the speech we can know that the speaker is responsible for the swimmers.D. Listen to the passage and complete the following sentences.21. It was very dark. Ben could hear ________ ________outside his home.22. Ben’s father was putting pieces ________ ________ over the windows.23. Ben was helping his mom with the dinner when the rain began to ________ ________ .24. Ben could not sleep at first. Finally, he fell asleep at ________ ________ a.m.25. The next day Ben and his family helped ________ ________the neighborhood.Part 2 Phonetics,Vocabulary and GrammarII.Choose the best answer(选择最恰当的答案)26.Which of the following underlined parts is pronounced /au/?A)know B)narrow C)Brown D)owner27.It is said that _______ new amusement park will be built in the west of Shanghai in the future.A)a B)an C)the D)/28.In China everyone would go home for a family reunion _______New Year’s Eve.A)at B)on C)to D)in29.Jackie Chen, who was awarded an Oscar, told the reporter that he was proud ______ his country.A)of B)with C)for D)out30.The visitors on the ship can enjoy the beautiful lights on ______ sides of the Huangpu River.A)Neither B)either C)both D)all31.After the girl finished her performance, the judges pointed out ______ mistakes to her politely.A)few B)a few C)little D)a little32.The boss asked the manager how many _______ he would need to finish the project.A)people B)time C)money D)food33.The students are talking pictures at school gate. They look _______ in their new uniforms.A)strangely B)kingly C)happily D)lovely34.For foreigners who are interested in Chinese gardens, Suzhou is one of _______ places to visit.A)attractive B)more attractive C)most attractive D)the most attractive35.The captain says that all the seatbelts ______ be fastened(抓紧)before the plane takes off.A)can B)may C)must D)should36.As a great badminton player, John ______ three medals by the end of last year.A)wins B)won C)has won D)had won37.When the earthquake ______, most of the villagers were working in the fields.A)happens B)happened C)will happen D)would happen38.They spent a lot of time _______ for the opening ceremony. And it was a great success.A)prepare B)prepared C)to prepare D)preparing39.The teacher often encourages the students ________ to their pen friends in English.A).write B)to write C)wrote D)writing40.The volunteers are very happy to help in the hospital _______ the work there is hard and dirty.A)though B)until C)if D)unless41.The boy tried to fool the farmers again, _______ this time no one believed him.A)and B)or C)but D)so42._______exciting football match it was! People all over the world watched it on TV last night.A)How B)What C)What a D)What an43.The citizens of Troy didn’t realize that the enemies came back again in the darkness, ______?A)did they B)didn’t they C)were they D)weren’t they44.I took away your umbrella by mistake yesterday .I’m sorry about that.________45.We are going to have a picnic next weekend. Would you like to join us?________A)I agree with you B)So do I C)Sure, I’d love to D)I think so, tooⅢ.Complete the following passage with the words or phrases in the box. Each can only be used once.(将下列单词或词组的字母代号填入空格。