山东省青岛市市南区度第二学期八年级期末试卷(无听力,无答案)

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精品解析:山东省青岛市市南区2022-2023学年八年级下学期期末语文试题(解析版)

精品解析:山东省青岛市市南区2022-2023学年八年级下学期期末语文试题(解析版)

2022-2023学年山东省青岛市市南区八年级(下)期末语文试卷一、积累与运用【满分20分】学校八年级举行“悦读经典”活动,下面文段是小语同学的活动感言,请你认真阅读,完成问题。

书是知识的源泉。

通过读书,使人的思想插上翅膀,感情绽开花蕾。

我热爱读书。

徜徉在书中,黄土高原粗犷(kuàng)豪放、刚劲(jìng)雄浑的腰鼓令我陶醉;壶口大气磅礴、震耳欲聋的瀑声令我震撼;大自然花香鸟语、草长(zhǎng)莺飞的语言令我陶醉;勃朗峰色彩斑澜、白云缭绕的景观令我目眩(xuàn)神迷……正如商务印书馆创始人张元济先生所说:“天下第一件好事还是读书。

”①从个人角度而言,腹有诗书气自华。

②从国家层面来说,倡导全民阅读提升整个民族的素质。

③历史证明,全世界一步步从野蛮走向文明,无不是建立在知识的积累之上。

④的确,读书可以明理,阅读铸就灵魂。

1. 文中划线词语书写有误的一项是()A. 大气磅礴B. 震耳欲聋C. 色彩斑澜D. 白云缭绕2. 文中加点字注音有误的一项是()A. 粗犷(kuàng)B. 刚劲(jìng)C. 草长(zhǎng)莺飞D. 目眩(xuàn)神迷3. 文中划波浪线的句子有语病,请将修改正确的句子写在下面。

4. 文中划线句子语序有些混乱,重新排列后,顺序最恰当的一项是()A. ①④②③B. ③①②④C. ④①②③D. ④②③①【答案】1. C 2. A3. 通过读书,人的思想插上翅膀,感情绽开花蕾。

(或:读书,使人的思想插上翅膀,感情绽开花蕾。

)4. C【解析】【1题详解】本题考查字形。

C.色彩斑澜——色彩斑斓。

故选C。

【2题详解】本题考查字音。

A.粗犷(kuàng)——guǎng。

故选A。

3题详解】本题考查病句的辨析与修改。

结合划波浪线的句子“通过读书,使人的思想插上翅膀,感情绽开花蕾”分析,句子成分残缺,缺少主语,可删去“通过”“使”其中一个。

2023-2024学年山东省青岛市多学校英语八下期末达标检测试题含答案

2023-2024学年山东省青岛市多学校英语八下期末达标检测试题含答案

2023-2024学年山东省青岛市多学校英语八下期末达标检测试题满分120分,时间90分钟一、完形填空(10分)1、阅读短文,从每题A、B、C、D四个选项中,选出一个能填入文章中相应空白处的最佳答案。

Coming home from school, I opened the door of the living room. I was ____1____ by what I saw. Mother sat on the sofa and she was ____2____. I had never seen that.“Mother?” I said. “What happened?” she wiped away tears (擦掉眼泪) and put on a weak smile. “____3____ important. Just that I’m going to ____4____ the job at the radio station. I can’t type(打字) fast enough.”“You have been practicing typing on yo ur green typewriter ____5____ and I believe you’ll catch on,” I said. “You always said you could do anything if you set your ____6____ to it.”“I think I can in most things,____7____ I can’t do this,” she said. She put her face ____8____ my shoulder (肩膀). Finding Mother in tears, I began very slowly to ____9____ the pressure on her. She was still my mother, but she was also a ____10____ person like me, capable of(会……的)fear, hurt and failure.week later, Mother took a ____11____ selling dry goods (商品、货物). But the evening practice on that green typewriter ____12____. I had a very ____13____ feeling now when I passed her door at night and heard her tapping away. I knew there was something more going on there than a woman learning to type.Several years later, Mother ____14____ took up working as a newspaper reporter. The green typewriter sits in my office now, unrepaired. When I have trouble writing an article and think about ____15____, I will think of my mom, looking at the typewriter. What keeps in my mind then is not her failure, but her will to go ahead.1. A. moved B. shocked C. excited D. interested2. A. crying B. laughing C. talking D. kidding3. A. Nothing B. Everything C. Something D. Anything4. A. change B. get C. lose D. achieve5. A. recently B. clearly C. suddenly D. actually6. A. force B. mind C. opinions D. feelings7. A. because B. so C. and D. but8. A. against B. over C. in D. with9. A. hide B. introduce C. understand D. hold10. A. unusual B. common C. sweet D. brave11. A. ticket B. hobby C. job D. trip12. A. developed B. worked C. stopped D. continued13. A. crazy B. peaceful C. different D. same14. A. successfully B. simply C. hardly D. quietly15. A. giving off B. giving up C. giving out D. giving away二、阅读理解(40分)2、LiverpoolDiscover the best music, sport and culture in the UK.Liverpool MUSICThe Beatles Story The world-famous 460s music group came from Liverpool. Find out about The Beatles at The Beatles Story. Open every day except Dec. 25 and 26.Adult: £15.95Student: £12.00Child: £7.00Children under five: Free Liverpool SPORTLiverpool FC This city loves football. Visit Anfield football stadium, home to Liverpool’s favorite football team, and take football team, and take a tour. Closed on weekends. Adult: £15: 00Under 1s and students: £9: 00Children under five: FreeLiverpool MUSEUMVisit the Liverpool Museum. Learn all about the history and culture of Liverpool. Free entry!Open daily 10 a. m.—5 p. m. Liverpool SHOPPINGLiverpool ONE Find the best shopping in the center of Liverpool at Liverpool ONE, Liverpool’s new shopping center, opened in 508. More than10 shops, restaurants and cinemas.1. If a student and his parents want to visit Anfield Football Stadium, how much do they have to pay?A. £15.00.B. £39.00.C. £24.00.2. How long does Liverpool Museum run every day? .A. Five hours.B. Seven hours.C. Nine hours.3. What is Liverpool ONE?A. A cinema.B. A restaurant.C. A shopping center.4. Which of the following is true?A. Liverpool Music opens every day.B. Liverpool people love football very much.C. Liverpool is a city in the United States.5. Where is the paper probably from?A. A travel guide.B. A health magazine.C. A shopping center.3、Sam,Thank you for asking me to play soccer with you. But I’m afraid I can’t. I have a piano lesson on Tuesday. Maybe another time.NancySandy,Thank you very much for inviting me to your birthday party on Friday. I’d love to come, but I have to go to New York that day. It’s very kind of you. I hope you have a happy birthday party.Nancy1. How many invitations does Nancy get?A. Two.B. Three.C. Four.D. Five.2. ___________ will have a birthday party.A. SamB. SandyC. LucyD. Rose3. Nancy will go to New York on __________.A. TuesdayB. WednesdayC. ThursdayD. Friday4. What does Nancy have to do on Thursday?A. Play soccer with Sam.B. Go to a birthday party.C. Cook fish for Lucy and Lily.D. Get her things ready for travelling.5. Which of the following sentences is TRUE?A. Lucy and Lily can’t come to Nancy’s house.B. Nancy is coming to Rose’s house for dinner.C. Sandy is coming to Nancy’s home for dinner.D. Nancy invites Rose to come to her house for dinner.4、Jim was a well-known radio host (广播主持人). In fact, he was known for his hosting and dressing. Every morning he took the time to get ready in a suit and tie. He always arrived at his office on time.But many people didn’t think what he was doing was meaningful. “No one sees you. Why do you dress like that?” He always just made it into a joke.One day Jim was invited to appear on TV. There was a special show for the good radio hosts. For the first time, people who only knew his voice would see his face. But he arrived late. The director (导演) was not angry with such a perfect host, but he was very curious (好奇的). “Usually you arrive on time, but today you are 5 minutes late. Why?”“When I put on my clothes,” said Jim, “I noticed that my socks were too old. It is my first time to be on TV. S o, I ran to thestore for some new socks.”“Why do you need new socks?” asked the director. “ We will only show you in close-up (特写镜头), above your waist.”“I need to feel spotless in everything, starting with my shirt and finishing with the pen in my pocket. If my socks have holes or my shoes are dirty, I’m not spotless anymore.”The director smiled. He realized that you can be successful only with the right attitude (态度).根据材料内容选择最佳答案。

山东省青岛市市南区统考2024年八年级物理第二学期期末教学质量检测试题含解析

山东省青岛市市南区统考2024年八年级物理第二学期期末教学质量检测试题含解析

山东省青岛市市南区统考2024年八年级物理第二学期期末教学质量检测试题注意事项: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,再选涂其它答案标号。

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。

一、单选题1.举重是我国的优势体育项目,如图所示,运动员需将杠铃举过头顶,等到裁判判定站稳之后才能算成绩有效。

在抓举时,两位运动员用相同时间把同样重的杠铃举起,一位运动员将杠铃举起1.9m,另一位运动员将杠铃举起1.8m。

如果他们对杠铃所做的功分别为W1和W2,功率分别为P1和P2,则下列关系式中正确的是()A.W1 < W2B.W1 > W2C.P1 = P2D.P1 < P22.如图所示,在轻质杠杆上吊一重物G,在一端施加一个始终与杠杆垂直的动力F,使杠杆缓慢地从水平位置OB转至OA,则在转动过程中()A.F变大B.F先变大后变小C.F变小D.F先变小后变大3.下列四个选项既是物理课本中出现的科学家又是相关物理量的单位,其中,属于弹力单位的是A.牛顿B.瓦特C.焦耳D.帕斯卡4.正在运动的物体,如果将它受到的力全部撤去,它将A.加速运动B.减速运动C.立即静止D.做匀速直线运动5.下列生产工具,使用时属于费力杠杆的是A.羊角锤拔钉子B.独轮手推车C.铡刀割草D.古人用礁捣谷6.小乐周末和父母一起去公园划船,坐在船上,下列说法正确的是A.刚开始船没动时,船没有受到力的作用B.小乐和爸爸使劲划了,船才动,说明力是维持物体运动的原因C.小乐用桨向后划水船会前行,说明物体间力的作用是相互的D.船能漂浮在水面,说明船受到的浮力大于它的重力7.2019年5月26日,在长春市举行的第三届国际马拉松比赛中,当运动员冲刺时,运动员A.重力增大B.惯性增大C.动能增大D.机械能不变8.如图所示的容器内装有一定量的水。

2024届山东省青岛市市南区统考八年级数学第二学期期末综合测试模拟试题含解析

2024届山东省青岛市市南区统考八年级数学第二学期期末综合测试模拟试题含解析

2024届山东省青岛市市南区统考八年级数学第二学期期末综合测试模拟试题 考生请注意:1.答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内,不得在试卷上作任何标记。

2.第一部分选择题每小题选出答案后,需将答案写在试卷指定的括号内,第二部分非选择题答案写在试卷题目指定的位置上。

3.考生必须保证答题卡的整洁。

考试结束后,请将本试卷和答题卡一并交回。

一、选择题(每题4分,共48分)1.如图,在正方形ABCD 中,点E 、F 、H 分别是AB 、BC 、CD 的中点,CE 、DF 交于点G ,连接AG 、HG .下列结论:①CE ⊥DF ;②AG=DG;③∠CHG=∠DAG .其中,正确的结论有( )A .0个B .1个C .2个D .3个2.教练要从甲、乙两名射击运动员中选一名成绩较稳定的运动员参加比赛.两人在形同条件下各打了5发子弹,命中环数如下:甲:9、8、7、7、9;乙:10、8、9、7、1.应该选( )参加.A .甲B .乙C .甲、乙都可以D .无法确定3.若点()1,2-在反比例函数k y x =的图像上,则下列各点一定在该图像上的是( ) A .()2,1-- B .1,22⎛⎫- ⎪⎝⎭ C .()2,1- D .1,22⎛⎫ ⎪⎝⎭4.如果12与最简二次根式5a +是同类二次根式,则a 的值是( )A .7a =B .2a =-C .1a =D .1a =-5.小强和小华两人玩“剪刀、石头、布”游戏,随机出手一次,则两人平局的概率为( )A .16B .13C .12D .236.在下列交通标志中,既是轴对称图形,又是中心对称图形的是( )A .B .C .D .7.某单位向一所希望小学赠送1080件文具,现用A 、B 两种不同的包装箱进行包装,已知每个B 型包装箱比A 型包装箱多装15件文具,单独使用B 型包装箱比单独使用A 型包装箱可少用12个.设B 型包装箱每个可以装x 件文具,根据题意列方程为A .108010801215x x =--B .10801080+1215x x =-C .1080108012+15x x =-D .10801080+12+15x x = 8.数据:2,5,4,5,3,4,4的众数与中位数分别是( ) A .4,3B .4,4C .3,4D .4,5 9.若分式方程12x -+3=12a x +-有增根,则a 的值是( ) A .﹣1B .0C .1D .2 10.函数12y x =--中自变量x 的取值范围是( ) A .21x ≥- B .12x ≤- C .12x ≥ D .12x ≤ 11.如图,矩形ABCD 的对角线AC 与数轴重合(点C 在正半轴上),5AB =,12BC =,若点A 在数轴上表示的数是-1,则对角线AC BD 、的交点在数轴上表示的数为( )A .5.5B .5C .6D .6.512.如图,在平行四边形ABCD 中,O 是对角线AC ,BD 的交点,下列结论错误的是( )A .AB ∥CD B .AC=BDC .AB=CD D .OA=OC二、填空题(每题4分,共24分)13.方程320x +=在实数范围内的解是________.14.如图所示,一次函数y=ax+b 的图象与x 轴相交于点(2,0),与y 轴相交于点(0,4),结合图象可知,关于x 的方程ax+b=0的解是_____.15.如图,把一个正方形的纸片对折两次,然后剪下一个角,为了得到一个锐角为60︒的菱形,剪口与折痕所成的角α的度数应为______或______.16.直线32y x =-+关于y 轴对称的直线的解析式为______.17.在平面直角坐标系中,将点P (﹣2,1)向右平移3个单位长度,再向上平移4个单位长度得到点P '的坐标是_____.18.在三角形ABC 中,点,,D E F 分别是,,BC AB AC 的中点,AH BC ⊥于点H ,若50DEF ∠=,则CFH ∠=________.三、解答题(共78分)19.(8分)如图,A l ,B l 分别表示小明步行与小刚骑车在同一路上行驶的路程S 与时间t 的关系.(1)小刚出发时与小明相距________米.走了一段路后,自行车发生故障进行修理,所用的时间是________分钟. (2)求出小明行走的路程S 与时间t 的函数关系式.(写出计算过程)(3)请通过计算说明:若小刚的自行车不发生故障,保持出发时的速度前进,何时与小明相遇?20.(8分)如图,在平面直角坐标系中,直线y =2x +4与x 轴交于点A ,与y 轴交于点B ,过点B 的直线交x 轴于C ,且△ABC 面积为1.(1)求点C的坐标及直线BC的解析式;(2)如图1,设点F为线段AB中点,点G为y轴上一动点,连接FG,以FG为边向FG右侧作正方形FGQP,在G 点的运动过程中,当顶点Q落在直线BC上时,求点G的坐标;(3)如图2,若M为线段BC上一点,且满足S△AMB=S△AOB,点E为直线AM上一动点,在x轴上是否存在点D,使以点D,E,B,C为顶点的四边形为平行四边形?若存在,请直接写出点D的坐标;若不存在,请说明理由.21.(8分)如图,在四边形ABCD中,AD∥BC,∠B=90°,AD=8cm,BC=10cm,AB=6cm,点Q从点A出发以1 cm/s 的速度向点D运动,点P从点B出发以2 cm/s的速度向点C运动,P,Q两点同时出发,当点P到达点C时,两点同时停止运动.若设运动时间为t(s)(1)直接写出:QD=______cm,PC=_______cm;(用含t的式子表示)(2)当t为何值时,四边形PQDC为平行四边形?(3)若点P与点C不重合,且DQ≠DP,当t为何值时,△DPQ是等腰三角形?22.(10分)一个二次函数的图象经过(﹣1,﹣1),(0,0),(1,9)三点(1)求这个二次函数的解析式.(2)若另外三点(x1,21),(x2,21),(x1+x2,n)也在该二次函数图象上,求n的值.23.(10分)先化简,再求值:(311x xx x--+)•21xx-,其中2﹣1.24.(1048﹣2712.25.(12分)学校准备从甲乙两位选手中选择一位选手代表学校参加所在地区的汉字听写大赛,学校对两位选手从表达能力、阅读理解、综合素质和汉字听写四个方面做了测试,他们各自的成绩(百分制)如下表: 选手 表达能力 阅读理解 综合素质 汉字听写甲 85 78 85 73乙 73 80 82 83(1)由表中成绩已算得甲的平均成绩为80.25,请计算乙的平均成绩,从他们的这一成绩看,应选派谁;(2)如果表达能力、阅读理解、综合素质和汉字听写分别赋予它们20%、10%、30%和40%的权重,请分别计算两名选手的最终成绩,从他们的这一成绩看,应选派谁.26.已知正方形ABCD 的边长为4,E 、F 分别为直线DC 、BC 上两点.(1)如图1,点E 在DC 上,点F 在BC 上,AF BE ⊥,求证:AF BE =.(2)如图2,点F 为BC 延长线上一点,作FG DB 交DC 的延长线于G ,作GH AF ⊥于H ,求DH 的长. (3)如图3,点E 在DC 的延长线上,()48DE a a =<<,点F 在BC 上,45BEF ∠=,直线EF 交AD 于P ,连接PC ,设CEP ∆的面积为S ,直接写出S 与a 的函数关系式.参考答案一、选择题(每题4分,共48分)1、C【解题分析】连接AH ,由四边形ABCD 是正方形与点E 、F 、H 分别是AB 、BC 、CD 的中点,容易证得△BCE ≌△CDF 与△ADH≌△DCF,根据全等三角形的性质,容易证得CE⊥DF与AH⊥DF,故①正确;根据垂直平分线的性质,即可证得AG=AD,继而AG=DC,而DG≠DC,所以AG≠DG,故②错误;由直角三角形斜边上的中线等于斜边的一半,即可证得HG=12DC,∠CHG=2∠GDC,根据等腰三角形的性质,即可得∠DAG=2∠DAH=2∠GDC.所以∠DAG=∠CHG,④正确,则问题得解.【题目详解】∵四边形ABCD是正方形,∴AB=BC=CD=AD,∠B=∠BCD=90°,∵点E. F. H分别是AB、BC、CD的中点,∴BE=FC∴△BCE≌△CDF,∴∠ECB=∠CDF,∵∠BCE+∠ECD=90°,∴∠ECD+∠CDF=90°,∴∠CGD=90°,∴CE⊥DF,故①正确;连接AH,同理可得:AH⊥DF,∵CE⊥DF,∴△CGD为直角三角形,∴HG=HD=12 CD,∴DK=GK,∴AH垂直平分DG,∴AG=AD=DC,在Rt△CGD中,DG≠DC,∴AG≠DG,故②错误;∵AG=AD, AH垂直平分DG∴∠DAG=2∠DAH,根据①,同理可证△ADH≌△DCF∴∠DAH=∠CDF,∴∠DAG=2∠CDF,∵GH=DH,∴∠HDG=∠HGD,∴∠GHC=∠HDG+∠HGD=2∠CDF,∴∠GHC=∠DAG,故③正确,所以①和③正确选择C.【题目点拨】本题考查正方形的性质,全等三角形的判定与性质,利用边角边,容易证明△BCE≌△CDF,从而根据全等三角形的性质和等量代换即可证∠ECD+∠CDF=90°,从而①可证;证②时,可先证AG=DC,而DG≠DC,所以②错误;证明③时,可利用等腰三角形的性质,证明它们都等于2∠CDF即可.2、A【解题分析】试题分析:由题意可得,甲的平均数为:(9+8+7+7+9)÷5=8;方差为:=0.8乙的平均数为:(10+8+9+7+1)÷5=8;方差为:=2;∵0.8<2,∴选择甲射击运动员,故选A.考点:方差.3、C【解题分析】将点(-1,2)代入反比例函数,求得=2k-,再依次将各个选项代入解析式,即可求解.【题目详解】解:将点(-1,2)代入kyx=中,解得:=2k-,∴反比例函数解析式为2yx =-,=2x-时,11y=≠-,A错误;1=2-x 时,42y =≠,B 错误; =2x 时,1y =-,C 正确;1=2x 时,4y =-,D 错误; 故选C .【题目点拨】本题考查反比例函数,难度一般,熟练掌握反比例函数上的点一定满足函数解析式,即可顺利解题.4、B【解题分析】根据同类二次根式的定义得出5+a =3,求出即可.【题目详解】=5+a =3,解得:a =﹣1.故选B .【题目点拨】本题考查了同类二次根式和最简二次根式,能根据同类二次根式的定义得出5+a =3是解答此题的关键.5、B【解题分析】试题解析:小强和小华玩“石头、剪刀、布”游戏,所有可能出现的结果列表如下:小强小华 石头 剪刀 布石头 (石头,石头) (石头,剪刀) (石头,布)剪刀 (剪刀,石头) (剪刀,剪刀) (剪刀,布)布 (布,石头) (布,剪刀) (布,布)∵由表格可知,共有9种等可能情况.其中平局的有3种:(石头,石头)、(剪刀,剪刀)、(布,布). ∴小明和小颖平局的概率为:3193=. 故选B .考点:概率公式.6、C【解题分析】根据轴对称图形和中心对称图形的定义进行分析即可.【题目详解】A、不是轴对称图形,也不是中心对称图形.故此选项错误;B、不是轴对称图形,也不是中心对称图形.故此选项错误;C、是轴对称图形,也是中心对称图形.故此选项正确;D、是轴对称图形,但不是中心对称图形.故此选项错误.故选C.【题目点拨】考点:1、中心对称图形;2、轴对称图形7、A【解题分析】关键描述语:单独使用B型包装箱比单独使用A型包装箱可少用12个;可列等量关系为:所用B型包装箱的数量=所用A型包装箱的数量-12,由此可得到所求的方程.【题目详解】解:根据题意,得:108010801215x x=--故选:A.【题目点拨】此题考查分式方程的问题,关键是根据公式:包装箱的个数与文具的总个数÷每个包装箱装的文具个数是等量关系解答.8、B【解题分析】根据众数及中位数的定义,求解即可.【题目详解】解:将数据从小到大排列为:2,3,1,1,1,5,5,∴众数是1,中位数是1.故选B.【题目点拨】本题考查众数;中位数的概念.9、B【解题分析】根据分式方程有增根可得出x=2是方程1+3(x-2)=a+1的根,代入x=2即可求出a值.【题目详解】解:∵分式方程12x -+3=12a x +-有增根, ∴x=2是方程1+3(x-2)=a+1的根, ∴a=1.故选:B .【题目点拨】本题考查分式方程的增根,熟记分式方程增根的定义是解题的关键.10、B【解题分析】根据二次根式中的被开方数非负数的性质进行计算,即可得到答案.【题目详解】由二次根式中的被开方数非负数的性质可得120x --≥,则12x ≤-,故选择B. 【题目点拨】本题考查函数自变量的取值范围,解题的关键是知道二次根式中的被开方数非负数 . 11、A【解题分析】连接BD 交AC 于E ,由矩形的性质得出∠B=90°,AE=12AC ,由勾股定理求出AC ,得出OE ,即可得出结果. 【题目详解】连接BD 交AC 于E ,如图所示:∵四边形ABCD 是矩形,∴∠B=90°,AE=12AC , ∴222251213AB BC +=+=,∴AE=6.5,∵点A 表示的数是-1,∴OA=1,∴OE=AE-OA=5.5,∴点E 表示的数是5.5,即对角线AC 、BD 的交点表示的数是5.5;故选A .【题目点拨】本题考查了矩形的性质、勾股定理、实数与数轴;熟练掌握矩形的性质,并能进行推理计算是解决问题的关键. 12、B【解题分析】试题分析:根据平行四边形的性质推出即可.解:∵四边形ABCD 是平行四边形,∴AB ∥CD ,AB=CD ,OA=OC ,但是AC 和BD 不一定相等,故选B .二、填空题(每题4分,共24分)13、x =【解题分析】由320x +=,得32x =-,根据立方根定义即可解答.【题目详解】解:由320x +=,得32x =-,x =故答案为:x =【题目点拨】本题考查了立方根,正确理解立方根的意义是解题的关键.14、x=1【解题分析】【分析】一次函数y=ax+b 的图象与x 轴交点横坐标的值即为方程ax+b=0的解.【题目详解】∵一次函数y=ax+b 的图象与x 轴相交于点(1,0),∴关于x 的方程ax+b=0的解是x=1,故答案为:x=1.【题目点拨】本题主要考查了一次函数与一元一次方程的关系.任何一元一次方程都可以转化为ax+b=0(a ,b 为常数,a≠0)的形式,所以解一元一次方程可以转化为:当某个一次函数的值为0时,求相应的自变量的值.从图象上看,相当于已知直线y=ax+b 确定它与x 轴的交点的横坐标的值.15、30 60︒【解题分析】根据翻折变换的性质及菱形的判定进行分析从而得到最后答案.【题目详解】解:一张长方形纸片对折两次后,剪下一个角,折痕为对角线,因为折痕相互垂直平分,所以四边形是菱形,而菱形的两条对角线分别是两组对角的平分线,所以当剪口线与折痕角α成30°时,其中有内角为2×30°=60°,可以得到一个锐角为60︒的菱形.或角α等于60°,内角分别为120°、60°、120°、60°,也可以得到一个锐角为60︒的菱形.故答案为:30°或60°.【题目点拨】本题考查了折叠问题,同时考查了菱形的判定及性质,以及学生的动手操作能力.16、32y x =+【解题分析】设函数解析式为:y=kx+b ,根据关于y 轴对称的两直线k 值互为相反数,b 值相同可得出答案.【题目详解】∵y=kx+b 和y=-3x+1关于y 轴对称,∴可得:k=3,b=1.∴函数解析式为y=3x+1.故答案为:y=3x+1.【题目点拨】本题考查一次函数图象与几何变换,掌握直线关于y 轴对称点的特点是关键.17、(1,5)【解题分析】根据向右平移横坐标加,向上平移纵坐标加求解即可.【题目详解】解:∵点P (-2,1)向右平移3个单位长度,再向上平移4个单位长度得到点P',∴点P′的横坐标为-2+3=1,纵坐标为1+4=5,∴点P′的坐标是(1,5).故答案为(1,5).【题目点拨】本题考查了坐标与图形变化-平移,平移中点的变化规律是:横坐标右移加,左移减;纵坐标上移加,下移减.18、80°【解题分析】先由中位线定理推出50EDB FCH ∠=∠=,再由平行线的性质推出CFH ∠,然后根据直角三角形斜边上的中线等于斜边的一半得到HF=CF ,最后由三角形内角和定理求出3AQ AP PQ =-=.【题目详解】∵点,,D E F 分别是,,BC AB AC 的中点∴//,//EF BC DE AC (中位线的性质)又∵//EF BC∴50DEF EDB ∠=∠=(两直线平行,内错角相等)∵//DE AC∴50EDB FCH ∠=∠=(两直线平行,同位角相等)又∵AH BC ⊥∴三角形AHC 是Rt 三角形∵HF 是斜边上的中线∴12HF AC FC == ∴50FHC FCH ∠=∠=(等边对等角)∴18050280CFH ∠=-⨯=【题目点拨】本题考查了中位线定理,平行线的性质,直角三角形斜边上的中线等于斜边的一半,和三角形内角和定理.熟记性质并准确识图是解题的关键.三、解答题(共78分)19、(1)3000,12;(2)1003000=+S t ;(3)若小刚的自行车不发生故障,保持出发时的速度前进,20分钟与小刚相遇.【解题分析】(1)根据函数图象可以直接得出答案;(2)根据直线l A 经过点(0,3000),(30,6000)可以求得它的解析式;(3)根据函数图象可以求得l B 的解析式与直线l A 联立方程组即可求得相遇的时间.【题目详解】解:(1)根据函数图象可知,小刚出发时与小明相距3000米.走了一段路后,自行车发生故障进行修理,所用的时间是12分钟.故答案为:3000;12;(2)根据函数图象可知直线A l 经过点()0,3000,()306000,. 设直线A l 的解析式为:=+S kt b ,则3000b 600030k b =⎧⎨=+⎩解得,100=k ,3000=b即小明行走的路程S 与时间t 的函数关系式是:1003000=+S t ;(3)设直线B l 的解析式为:=S kt ,∵点(10,2500)在直线B l 上, 250010∴=⨯k得250=k ,250∴=S t .s 100t 3000s 250t =+⎧∴⎨=⎩解得5000=S ,20t =.故若小刚的自行车不发生故障,保持出发时的速度前进,20分钟与小刚相遇.【题目点拨】本题考查一次函数的应用,解题的关键是利用数形结合的思想对图象进行分析,找出所求问题需要的条件.20、(1)C (3,0),直线BC 的解析式为y =﹣x +4;(2)满足条件的点G 坐标为(0,)或(0,﹣1);(3)存在,满足条件的点D 的坐标为(,0)或(﹣,0)或(﹣,0)【解题分析】(1)利用三角形的面积公式求出点坐标,再利用待定系数法即可解决问题.(2)分两种情形:①当时,如图中,点落在上时,过作直线平行于轴,过点,作该直线的垂线,垂足分别为,.求出.②当时,如图中,同法可得,利用待定系数法即可解决问题.(3)利用三角形的面积公式求出点的坐标,求出直线的解析式,作交直线于,此时,,当时,可得四边形,四边形是平行四边形,可得,,,,再根据对称性可得解决问题.【题目详解】解:(1)直线与轴交于点,与轴交于点,,,,,,,,,设直线的解析式为,则有,.直线的解析式为.(2),,,,设,①当时,如图中,点落在上时,过作直线平行于轴,过点,作该直线的垂线,垂足分别为,.四边形是正方形,易证,,,,点在直线上,,,.②当时,如图中,同法可得,点在直线上,,,.综上所述,满足条件的点坐标为或.(3)如图3中,设,,,,, ,, 直线的解析式为, 作交直线于,此时,, 当时,可得四边形,四边形是平行四边形,可得,,,, 根据对称性可得点关于点的对称点,也符合条件, 综上所述,满足条件的点的坐标为,或,或,. 【题目点拨】本题属于一次函数综合题,考查了待定系数法,三角形的面积,全等三角形的判定和性质,正方形的性质,平行四边形的判定和性质等知识,解题的关键是学会用分类讨论的思想思考问题,学会添加常用辅助线,构造全等三角形解决问题,属于中考压轴题.21、(1)QD =8t -,PC =102t -;(2)2t =;(3)当83t =或74t =时DPQ ∆是等腰三角形. 【解题分析】试题分析:(1)根据AD 、BC 的值和点Q 的速度是1cm/s ,点P 的速度是2cm/s ,直接用t 表示出QD 、CP 的值;(2)四边形PCDQ 是平行四边形,则需DQ CP =,可得方程8-t=10-2t ,再解方程即可;(3)分两种情况讨论:①PQ PD =,②QD QP =,根据这两种情况分别求出t 值即可.试题解析:解:(1)QD =8t -,PC =102t -;(2)若四边形PCDQ 是平行四边形,则需DQ CP =∴8102t t -=-解得2t =(3)①若PQ PD =,如图1, 过P 作PE AD ⊥于E则8QD t =-,11(8)22QE QD t ==- 11(8)(8)22AE AQ QE t t t =+=+-=+ ∵AE BP =∴1(8)22t t +=解得83t = ②若QD QP =,如图2,过Q 作QF BC ⊥于F 则6QF =,2FP t t t =-=Rt QPF 在中,由勾股定理得∆222QF FP QP +=即2226+(8)t t =-解得74t =综上所述,当83t =或74t =时DPQ ∆是等腰三角形考点:四边形、三角形综合题;几何动点问题.22、 (1)y =4x 2+5x ;(2)n=1.【解题分析】(1)先设出二次函数的解析式,然后将已知条件代入其中并解答即可;(2)由抛物线的对称轴对称x 1+x 2=﹣54,代入解析式即可求得n 的值. 【题目详解】解:(1)设二次函数的关系式为y =ax 2+bx+c(a≠1),∵二次函数的图象经过点(1,1),(﹣1,﹣1),(1,9)三点, ∴019c a b c a b c =⎧⎪-+=-⎨⎪++=⎩,解得450a b c =⎧⎪=⎨⎪=⎩,所以二次函数的解析式是:y =4x 2+5x ;(2)∵二次函数为y =4x 2+5x ,∴对称轴为直线x =﹣524⨯=﹣58, ∵三点(x 1,21),(x 2,21),(x 1+x 2,n)在该二次函数图象上,∴12x x 2+=﹣58, ∴x 1+x 2=﹣54, ∴n =4×(﹣54)2+5×(﹣54)=1. 【题目点拨】本题主要考查二次函数,掌握二次函数的图象和性质以及待定系数法是解题的关键.23、﹣2.【解题分析】先根据分式混合运算的法则把括号里的进行化简,然后进行乘法运算,再把x 的值代入进行计算即可. 解:原式=()()()()()()3111111x x x x x x x x x +--+-⋅-+=3(x+1)﹣x+1=3x+3﹣x+1=1x+3.当﹣11)﹣﹣2.24【解题分析】直接化简二次根式,进而合并得出答案.【题目详解】原式=【题目点拨】此题主要考查了二次根式的加减运算,正确化简二次根式是解题关键.25、(1)乙的平均成绩是79.5(分),应选派甲;(2)甲的最终成绩:79.5(分),乙的最终成绩:80.4(分),应选派乙.【解题分析】(1)求出乙的平均成绩,与甲作比较即可;(2)分别计算甲乙的加权平均数,得到最终成绩,再进行比较即可.【题目详解】解:(1)乙的平均成绩:14⨯(73+80+82+83)=79.5(分),∵甲的平均成绩为80.25,∴应选派甲;(2)甲的最终成绩:85×20%+78×10%+85×30%+73×40%=79.5(分) 乙的最终成绩:73×20%+80×10%+82×30%+83×40%=80.4(分) ∴应选派乙.【题目点拨】本题考查了算术平均数和加权平均数,熟练掌握求算术平均数和加权平均数的方法是解题的关键.26、(1)详见解析;(2)4;(3)216162CEP S a a ∆=+- 【解题分析】(1)先证出BAF CBE ∠=∠,得到()ABF BCE ASA ∆≅∆,则有AF BE =;(2)延长GH 交AD 的延长线于P ,先证出()GDP FBA ASA ∆≅∆,得到DP AB AD ==,再由直角三角形的性质得到142DH AP AD ===; (3)过B 作BL PE ⊥交CD 于L ,交PE 于K ,先证得()BKF EKL ASA ∆≅∆得到KF KL =,再进一步得到()CKD CKB SAS ∆≅∆及()ABP CBE SAS ∆≅∆,所以4CE AP a ==-,()448PD a a =--=-,所以216162CEP S a a ∆=+-. 【题目详解】(1)证明:∵四边形ABCD 是正方形,∴AB BC =,90ABC C ∠=∠=,∴90ABE CBE ∠+∠=,∵AF BE ⊥,∴90BAF ABE ∠+∠=,∴BAF CBE ∠=∠,∴()ABF BCE ASA ∆≅∆,∴AF BE =.(2)解:延长GH 交AD 的延长线于P ,∵四边形ABCD 是正方形,∴BC CD =,45CBD CDB ∠=∠=,∵FG GB ,∴CGF CDB ∠=∠,CFG CBD ∠=∠,∴45CGF CFG ∠=∠=,∴CF CG =,∴BF DG =,∵GH AF ⊥,∴90FHG GCF ∠=∠=,∴BFA DGP ∠=∠,∵90FBA GDP ∠=∠=,∴()GDP FBA ASA ∆≅∆,∴DP AB AD ==,∵90AHP ∠=, ∴142DH AP AD ===. (3)216162S a a =-+-. 证明:过B 作BL PE ⊥交CD 于L ,交PE 于K ,则BK KE =,易得,,KBF KEL BKF EKL ∠=∠∠=∠∴()BKF EKL ASA ∆≅∆,∴KF KL =,由此可证CK 平分LCF ∠,∴()CKD CKB SAS ∆≅∆,∴DK BK EK ==,∴PK BK EK ==,∴PBE ∆为等腰直角三角形,∴()ABP CBE SAS ∆≅∆,∴4CE AP a ==-,∴()448PD a a =--=-, ∴216162CEP S a a ∆=+-. 【题目点拨】本题考查了正方形的综合,熟练掌握正方形和三角形全等的判定与性质,添加恰当的辅助线是解题关键.。

2023-2024学年山东省青岛市市南区青岛大学附属中学八年级下学期期末英语试题

2023-2024学年山东省青岛市市南区青岛大学附属中学八年级下学期期末英语试题

2023-2024学年山东省青岛市市南区青岛大学附属中学八年级下学期期末英语试题1. Earth is ___________ only home to everyone. Let’s try to make it ___________ greener world to live in.A.the; a B.an; a C.an; the D.the; the2. Learning English in a classroom is important, while using English in real _________ will improve your English skills greatly.A.positions B.situationsC.events D.experiences3. —Are you going to Shanghai Art Museum this Sunday?—Yes. ___________ I ___________ my brother is going there. We will start at 2 p.m. together.A.Both; and B.Neither; norC.Not only; but also D.Either; or4. —You don’t look well. You’d better see the doctor.—I ________. But the doctor said there was nothing serious.A.have B.am C.will D.was5. — Did you feel ________was selfish of Jack to hide the comic books?— Yes. It is important ________ a boy to learn to share.A.that; of B.that; for C.it; of D.it; for6. China has the ____population in the world and it is also larger than ____country in Asia .A. largest , any other B. larger, any C. largest , any D. larger , anyother7. The kind woman often ________food and drinks ________the homeless people.A.provides; for B.provides; with C.offers; with D.offers; for 8. —How long have they ______ France?—For about half a year.A.been to B.gone to C.gone in D.been in 9. Daniel wanted to know ________.A.whether we will be invited B.if we would have a holidayC.what were you talking about D.that Nantong belongs to JiangsuProvince10. —It’s said that shopping online is safe.—________. You’d better be careful.A.I agree B.That depends C.I think so D.Don’t say that请先通读下面的短文,掌握其大意,然后从每小题所给的 A、B、C、D四个选项中选出最佳选项,并在答题卡上将该项涂黑。

青岛市市南区八年级下学期期末物理试卷

青岛市市南区八年级下学期期末物理试卷

青岛市市南区八年级下学期期末物理试卷姓名:________ 班级:________ 成绩:________一、选择题 (共12题;共24分)1. (2分)如图所示为“五千年文博园”里的石雕,它的大小跟真人差不多,石头的密度是(约为人的3倍),则这尊石雕的质量约为()A . 2kgB . 20kgC . 200kgD . 2000kg2. (2分)下列关于自行车的一些部件的设计或使用,为了减小摩擦的是()A . 车轮的外胎上做有凹凸花纹B . 轴承中装有滚珠C . 刹车时用力捏闸柄,增大闸皮对车圈的压力D . 车把套上制作了花纹3. (2分)一位同学在结冰的湖面上行走时,突然发现脚下的冰即将断裂,他应采取的措施是()A . 站住不动B . 就地伏在冰面上慢慢向岸边挪动C . 迅速走开D . 踮着脚尖轻轻走开4. (2分) (2020八下·北京期中) 重100N的物体放在水平面上,小文第一次用60N的力竖直向上提物体,第二次用80N的力竖直向上提物体,比较两次物体受到的合力是()A . 第一次物体受到的合力大,等于40NB . 第二次物体受到的合力大,等于80NC . 先后两次物体受合力相等,等于0D . 先后两次的合力之差等于20N5. (2分)(2019·黄冈) 在工厂车间,工人先将金属杆一端的空心吸盘(如图)按压在半成品玻璃上固定,再在A处用力,使玻璃刀在玻璃上绕转轴转动一周,圆形玻璃制品就成型了。

下列分析正确的是()A . 吸盘被按压后即可固定,是由于吸盘受到大气压作用B . 玻璃刀口做得锋利是为了增大对玻璃的压力C . 玻璃刀绕转轴转动时,没有受到玻璃施加的摩擦力D . 玻璃刀绕转轴转动时,金属杆始终是一个等臂杠杆6. (2分)(2017·溧水模拟) 如图所示是我国海军某舰队的“强国号”潜水艇在海中悬浮、上浮、漂浮训练过程,下列对此潜艇分析正确的是()A . 上浮过程中所受浮力逐渐变大B . 悬浮和漂浮时所受的浮力相等C . 漂浮时排开的海水所受的重力最小D . 漂浮时潜艇底部所受海水压强最大7. (2分) (2017八下·同安期中) 下列现象中,能用流体压强与流速关系解释的是()A . 吸盘挂钩被压在墙上B . 杯中水不流出,纸片不掉下C . 向漏斗吹气,乒乓球被吸起D . 尖口吸管容易插入封口盖8. (2分)将一个生鸡蛋放进盛有清水的杯中,如图所示,鸡蛋沉入水底,鸡蛋重为G,然后逐渐向水中加入食盐并使其溶解,在鸡蛋渐渐浮起到静止的过程中,鸡蛋所受的浮力随时间变化正确的是()A .B .C .D .9. (2分)如图所示,在竖直平面内用轻质细线悬挂一个小球,将小球拉至A点,使细线处于拉直状态,由静止开始释放小球,不计空气阻力,小球可在A、F、B三点间来回摆动,A和B是最高点,F是最低点.下列说法正确的是()A . 当小球到达B点时受平衡力B . 小球到达最低点F时撤去一切外力,由于惯性,它将保持原来的圆周运动C . 当小球到达最高点A时撤去一切外力,它将做匀速直线运动D . 当小球摆动到B点时,细线恰好断开,则小球将沿BE方向运动10. (2分) (2019八下·北京期中) “春分”是二十四节气之一,在每年农历二月十五日前后(公历大约为3月20-21日期间),《春秋繁露·阴阳出入上下篇》说:“春分者,阴阳相半也,故昼夜均而寒暑平.”春分是玩竖蛋游戏的最佳时光,故有“春分到,蛋儿俏”的说法.如图所示当鸡蛋在水平桌面上竖起静止时,下列说法中正确的是()A . 鸡蛋的重力和桌面对鸡蛋的支持力是一对平衡力B . 鸡蛋的重力和鸡蛋对桌面的压力是一对相互作用力C . 鸡蛋对桌面的压力和桌面对鸡蛋的支持力是一对平衡力D . 桌子受到的压力和地面对桌子的支持力是一对相互作用力11. (2分) (2018八下·定西月考) 熟透的苹果从树上落下来,下列说法中正确的是()A . 地球对苹果有吸引力,而苹果不吸引地球B . 地球对苹果的吸引力大于苹果吸引地球的力C . 地球对苹果的吸引力等于苹果吸引地球的力D . 地球对苹果的吸引力小于苹果吸引地球的力12. (2分) (2016九上·井陉开学考) 取一片金属箔做成中空的桶,它可以漂浮在盛有水的烧杯中.如果将此金属箔揉成团,它会沉入水底.比较上述两种情况,则下列说法中正确的是()A . 金属箔漂浮时受到的重力比它沉底时受到的重力小B . 金属箔漂浮时受到的浮力比它沉底时受到的浮力大C . 金属箔沉底时排开水的体积比它漂浮时排开水的体积大D . 金属箔沉底时受到的浮力等于它的重力二、填空作图题 (共7题;共18分)13. (2分) (2017八下·杜尔伯特蒙古族自治县期中) 某课外活动小组利用烧瓶做了一个演示潜水艇原理的模型,通过胶管A从烧瓶吸气或向烧瓶吹气,就可以使模型下沉或上浮。

2024届山东省青岛市市南区统考语文八年级第二学期期末监测模拟试题含解析

2024届山东省青岛市市南区统考语文八年级第二学期期末监测模拟试题含解析

2024届山东省青岛市市南区统考语文八年级第二学期期末监测模拟试题考生请注意:1.答题前请将考场、试室号、座位号、考生号、姓名写在试卷密封线内,不得在试卷上作任何标记。

2.第一部分选择题每小题选出答案后,需将答案写在试卷指定的括号内,第二部分非选择题答案写在试卷题目指定的位置上。

3.考生必须保证答题卡的整洁。

考试结束后,请将本试卷和答题卡一并交回。

一、积累与运用。

(28分)1.(2分)下列关于文学名著的表述有误的一项是()A.《傅雷家书》中傅雷以深厚的学养、真挚的父爱,对儿子在做人和生活方面进行了有益的引导,表现出他对儿子的舔犊之情。

B.在《钢铁是怎样炼成的》中,主人公奥斯特洛夫斯基充满了革命的理想主义色彩和英雄主义的格调。

C.《红星照耀中国》的作者是美国的埃德加·斯诺。

D.法布尔的《昆虫记》被誉为“昆虫的史诗”,除了真实地记录昆虫的生活,还透过昆虫世界折射出社会人生。

全书充满了对生命的关爱之情和对自然万物的赞美之情。

2.(2分)下列句子中,标点符号使用合乎规范的一项是()A.在即将到来的暑假里,同学们是想学习一些特长呢?还是想参加一些社会实践活动?B.成才的关键有三条:一是身体健康,二是作风踏实,三是耐得住寂寞。

C.“鞠躬尽瘁,死而后已,”正好准确地描述了他的一生。

D.美国的纽约、洛杉矶、日本的东京、法国的巴黎、英国的伦敦、中国的北京、上海,都是世界上著名的特大城市,都有申办大型国际会议的实力。

3.(2分)下列各项中表述有误的一项是( )A.《社戏》选自《彷徨》,小说讲述了主人翁“迅哥儿”和一群小伙伴到赵庄看社戏的一段难忘的经历。

B.《大道之行也》选自《礼记正义》,《礼记》相传是西汉经学家戴圣编纂的是儒家经典论著之一。

C.《最后一次讲演》是闻一多先生在李公朴的追悼会上所做的一次即兴演讲。

D.《马说》的作者韩愈世称“韩昌黎”,是唐代杰出的文学家,也是“唐宋八大家”之一。

4.(2分)下列说法不准确的一项是()A.贺敬之的《回延安》,用陕北民歌“信天游”的形式写成,使用了富有地方色彩的语言,展示出浓郁的陕北风情。

2022—2023学年山东省青岛市市南区八年级下学期期末物理试卷

2022—2023学年山东省青岛市市南区八年级下学期期末物理试卷

2022—2023学年山东省青岛市市南区八年级下学期期末物理试卷一、单选题1. 高空抛物是极不文明的行为,会造成很大的危害。

因为高处的物体具有较大的()A.重力势能B.弹性势能C.压强D.重力2. 小雨同学穿上旱冰鞋静止站在墙前,向右用力推墙时,发现自己向左运动。

关于该现象,下列说法正确的是()A.使小雨向左运动的力,施力物体是小雨B.小雨推墙的力小于墙推小雨的力C.小雨由静止变为运动,说明力可以改变物体的运动状态D.小雨最终会停下,是因为物体的运动需要力来维持3. 下列做法中,为了减小摩擦的是()A.拔河比赛中,运动员握紧绳子B.旅行箱安装小轮子C.结冰的路面上撒煤渣D.汽车轮胎上制有花纹4. 小明同学梳理了教材中相关的力学知识,如图所示,其中分析错误的是()A.图甲,用力捏玻璃瓶,细管中水面升高,说明力能改变物体的形状B.图乙,所砌的墙壁与铅垂线平行时,说明墙壁竖直C.图丙,撞击锤柄下端,锤头由于惯性就紧套在锤柄上D.图丁,用向左的力未将小车推动,因为推力小于摩擦力5. 如图表示体重大致相同的滑雪者和步行者在雪地里行走的情景,为了探究他们对雪地压力的作用效果,现利用海绵、小桌、砝码进行模拟研究,应选择图中的哪几种情形()A.甲与乙B.乙与丙C.甲与丙D.以上都不对6. 简单机械在生活中有着广泛的应用,下列有关说法错误的是()A.旗杆顶部的定滑轮,能够改变力的方向B.电动起重机里的动滑轮,可以省力但不改变用力方向C.天平是等臂杠杆D.利用滑轮组提升物体可以省力但不能改变用力方向7. 2023年5月28日,国产大飞机C919全球首航从上海10时32分起飞,12时31分抵达北京,圆满完成商业首飞。

关于国产大飞机的说法错误的是()A.飞机座椅设计的宽大且柔软,利用增大受力面积的方法减小压强B.飞机在跑道上滑跑时,随着速度的增大,动能不断增大C.飞机离开地面升空,利用了流速越大压强越小的原理获得升力D.飞机在空中匀速直线飞行时,不一定受平衡力8. 装有一定量水的细玻璃管斜放在水平桌面上,如图所示,此时水对玻璃管底部的压强为()(g取10N/kg)A.1.6×103Pa B.2×103Pa C.1.6×105Pa D.2×105Pa9. 下列有关机械做功、功率、机械效率的说法,正确的是()A.效率越高的机械,功率越大B.做功越多的机械,功率越大C.做有用功越多的机械,效率越高D.功率越大的机械,做功越快10. 以下关于运动和力的说法中正确的是()A.物体受力,运动状态一定改变B.物体不受力,运动状态也可以改变C.物体运动状态改变,一定受到力的作用D.物体运动状态改变,也有可能不受力二、多选题11. 空中下落的篮球越落越快,从力或能量的角度都能解释该现象,以下说法中合理的是()A.篮球受到的重力越来越大,改变了篮球的运动状态,使得篮球越落越快B.篮球受到的重力不变,但力可以改变物体的运动状态,使得篮球越落越快C.篮球下落过程中,重力势能转化为动能,篮球的动能增大,篮球越落越快D.篮球下落过程中,动能转化为重力势能,篮球的动能增大,篮球越落越快12. 如图所示是小明探究“浮力的大小跟排开液体所受重力的关系”实验顺序,以下说法正确的是()A.弹簧测力计在使用前要将指针调零B.操作④中,由于小桶内的水倒不干净会导致实验误差C.为减小实验误差,最合理的实验顺序是④①②③D.为了得到普遍适用的规律,应该用这套实验器材多做几次实验求平均值13. 如图所示,水平地面的粗糙程度相同,完全相同的甲、乙两个木箱,在水平推力F的作用下,一起向右做匀速直线运动,则以下说法正确的有()A.甲木箱所受的重力不做功B.乙木箱对甲木箱的压力大小等于乙木箱的重力C.乙木箱受到甲木箱向右的摩擦力D.若增大水平推力F,地面对甲木箱的摩擦力变大14. 在斜面上将一个重4.5N的物体匀速拉到高处,沿斜面向上的拉力为1.8N,斜面长1.2m、高0.3m。

山东省青岛市市南区度第二学期八年级期末试卷(无听力,无答案) (1)

山东省青岛市市南区度第二学期八年级期末试卷(无听力,无答案) (1)

第二学期期末质量检测八年级英语试题(120分钟,105分)听力部分20分,笔试85分IV单项选择。

从每小题所给的四个选项中选出能够完成或回答这一小题的最佳答案。

(共30小题,每小题0.5分,共15分)21.Mr. Green is a kind man. He always tries his best to help________weak.A.aB.theC.anD.不填22.----I have been to Tibet before. What about you,Tina?A.tooB.alsoC.eitherD.neither23.This elephant eats _________than this panda.A.fewerB.much lessC.many times moreD.much24.-----Will you go to the cinema, Mary?---I’m afraid not. I ______my tickets.A.loseB.lostC.am losingD.have lost25.The movie is so interesting that two _______people habe seen it in the past few days.lionlionslion oflions of26.Look at the couple. They ______ for five years.A.marriedB.have been marriedC.got marriedD.be married27.----I’m sorry to keep you waiting for long.----Never mind. I have been here________.A.ten minutes agoB.just nowC.for only a few minutesD.in the past28.To be ________, I don’t know _______to do with the old bike.A.honest ,whatB.honest , howC.true, whatD.true, how29.----Which of the two T-shirts do you like better?---______,Mom, I don’t like their colors.A.EitherB.NeitherC.BothD.None30._______is the Qomolangma? It’s 8844meters. It’s very hard_______.A.How long, to climbB.How far, climb itC.How high, to climbD.How deep, to climb31.----________?-----Since two years ago.A.How long have you lived hereB.When did you live hereC.How long did you live hereD.Did you live here two years ago32.I can still remember this thing,_______it was so long ago.A.as forB.even thoughC.becauseD.so that33.----Many of the animals ________the pollution every year.-----Right. The government will find ways to solve the problem.A.fight withB.take inC.killD.die from34.our teacher often encourages us _______the endangered animals.A.to protectB.protectingC.protectD.protected35.Mrs.White was _______tired _____she couldn’t stand up by herself.A.so, thatB.enough, toC.too, toD.such, that36.Many people do not realize the importance of health______they have fallen ill.A.sinceB.untilC.whileD.after37.The match was really fantastic,______when Sam scored in the last minute.A.especiallyB.exactlyC.probablyD.actually38.I met a good friend of mine while I ______on the street.A.walksB.walkC.was walkingD.am walking39.___________ we know, this is the most popular science museum in India.A.As far asB.As long asC.As well asD.As much as40.----Did you use to _______your diary in the bookcase?----Yes, I did. I didn’t want my parents to read it.A.writeB.returnC.hidepare41.We found _______very interesting to learn about Chinese culture.A.it isB.thatC.itD.that is42.---Who does the boat belong to?---It belongs to ______.A.Alex’sB.heC.hisD.Alex43.The clothes are very beatiful in this shop, and _______of them are for children.A.one thirdsB.two thirdC.three quartersD.three fourth44.The teacher divided the students into small groups _______their hobbies.A.in order toB.according toC.as forD.even though45.Everybody agrees _______families and friends always makes people sad.A.parting withB.grows upC.part withD.give up46.----Your aunt will walk the dog tomorrow moning.-----Yeah, unless bad weather ________her.A.stopsB.will stopC.to stopD.stop47.Crusoe went out with his gun every day________animals for food.A.killingB.killedC.killsD.to kill48.The movie was so funny that I couldn’t stop_______.A.to laughughingughughed49.----______can you see such signs?----At the subway stations.A.What elseB.What otherC.Where elseD.When others50.The population in our city is getting _______, and it has caused a lot of problems.A.more and moreB.much moreC.a lot ofrger and largerV阅读理解阅读下列短文,做出正误判断或选出最佳答案。

青岛市市南区度第二学期八年级数学期末试题

青岛市市南区度第二学期八年级数学期末试题

第二学期期末质量检测八年级数学试题(考试时间:120分钟 满分:120分)真情提示:亲爱的同学,欢迎你参加本次考试,祝你答题成功!本试题分第Ⅰ卷和第Ⅱ卷两部分,共有24道题.第Ⅰ卷1—8题为选择题,共24分;第Ⅱ卷9—16题为填空题,共24分,17题为作图题,共4分,18—24题为解答题,共68分.要求所有题目均在答题纸上作答,在本卷上作答无效.第Ⅰ卷一、选择题:(本题满分24分,共有8道小题,每小题3分) 1.下列图案既是轴对称图形又是中心对称图形的是( )2.下列变形属于因式分解的是( )y x xy y x A 223236.⋅= ()222369.n m n mn m B -=+-()()221.2-+=+-x x x x C 5)2)(2(54.22+-+=+-n m n m n m D3. 若y x >,则根据不等式的基本性质,下列不等式中错误的是( )55.+>+y x A y x B 3232.> 3232.->-y x C y x D 5757.->-4.下列命题中,真命题是( ) A. 对角线相等的四边形是矩形 B. 对角线互相垂直的四边形是菱形 C. 对角线互相平分的四边形是平行四边形D. 一组对边相等,另一组对边平行的四边形是平行四边形 5.下列变形不正确的是A. a y a x y x ⋅⋅= (0≠a ) x y x x y x B --=+-. x x x x x C 339.22+=+- 0.=-+-xy ay x a D6. 如图□ABCD 的周长为18cm ,点O 是对角线AC 的中点,过点O 作EF 垂直于AC ,分别 交DC 、AB 于E 、F ,连结AE ,则ADE ∆的周长( ) A.9cm B.10cm C.11cm D.12cm7. 如图,在ABC ∆中,AD B C ,,oo 3090=∠=∠是ABC ∆的角平分线,AB DE ⊥,垂足为E,1=DE ,则边BC 的长为( )A.3 2.B 23.+C 3.D8.如图,将ABC ∆绕点P 顺时针旋转o 90得到C B A '''∆,则点P 的坐标是( ))1,1.(A )2,1.(B )3,1.(C )4,1.(D第Ⅱ卷二、填空题:(本题满分24分,共有8道小题,每小题3分) 9.把多项式3262x x +分解因式的结果是______________.10.若分式4242--x x 的值为零,则x 等于_________.11.将完全相同的平行四边形和完全相同的菱形镶嵌成如图所示的图案,设菱形中较小的角为x 度,平行四边形中较大的角为y 度,则y 与x 的关系式是_________. 12.使分式方程7332=-++-xn x x 产生增根的n 的值为_____________.13.青岛到烟台两地相距200km ,新修的高速公路开通后,两个城市之间行驶的长途客车平均车速提高了50%,从青岛到烟台的行驶时间缩短了1小时,若设原来的平均车速为xkm/h,则根据题意可列方程为_______________.14.如图,已知函数b x y +=3和3-=ax y 的图象交于点P ()5,2--,则根据图象可得不等式33->+ax b x 的解集是_____________.15. 如图,O 是边长为6的等边ABC ∆三边垂直平分线的交点,将ABC ∆绕点O 逆时针方向旋转180o,得到111C B A ∆,则111C B A ∆与ABC ∆重叠部分(图中阴影部分)的面积为___________.16.小明从点O 出发,前进5m 后向右转15o,再前进5米后向右转15o,......一直这样走下去,直到他第一次回到出发点O 为止,他所走的路径构成了一个正多边形,小明走的路程总和是______米,这个多边形的内角和是___________度.三、作图题:用尺规作图,不写作法,但要保留作图痕迹. 17.已知线段c ,直线l 及l 外一点A.求作:Rt ABC ∆,使直角边为AC (l AC ⊥,垂足为C ),斜边AB=c.四、解答下列各题:(本题满分 68分,共有7道题)18. 计算:(本题有3道小题共计16分,(1)小题4分;(2)小题6分;(3)小题6分)(1)因式分解)2()2(2a m a m -+-()⎩⎨⎧<--+≥--+13)3(13121312x x x x (2)解不等式组: ,并把解集表示在数轴上.(3)先化简,再求值:442212+-÷⎪⎭⎫ ⎝⎛--x x xx x ,其中31=x19.(本小题满分6分)已知:E 是AOB ∠的平分线上一点,E C OA ED OB EC OB ⊥⊥⊥,,,垂足分别是C 、D ,连接CD,交OE 于点F.求证:OE 垂直平分CD20. (本小题满分6分)崂山的油桃和樱珠是非常鲜美的水果,端午节期间王文同学和朋友们一起去参加采摘节,他们采摘购买了油桃和樱珠两种水果,其中油桃必樱珠多摘了12斤,且采摘购买油桃和樱珠分别用了120元,已知樱珠每斤价格是油桃每斤价格的2.5倍,问油桃和樱桃每斤各是多少元?已知,在□ABCD 中,点M 、N 分别在AD 和BC 上,点E 、F 在对角线BD 上,且DM=BN ,DF=BE.求证:(1)DFM BEN ∆≅∆ (2)四边形MENF 是平行四边形.22.(本小题满分10分)青岛市居民阶梯电价听证会,征求了消费者、经营者和有关方面的意见,对居民阶梯电价方案的必要性、可行性进行了论证,阶梯电价方案规定:【阶梯一】若月用电量为210度及以内,收费标准为0.55元/度.【阶梯二】若月用电量超过210度,收费标准由两部分组成:①其中210度按0.55元/度收费;②超出210度的部分按0.60元/度收费。

青岛市市南区八年级下学期期末物理试卷

青岛市市南区八年级下学期期末物理试卷

青岛市市南区八年级下学期期末物理试卷姓名:________ 班级:________ 成绩:________一、单项选择题 (共7题;共14分)1. (2分)(2017·滨湖模拟) 为了让同学们养成关注生活的良好习惯,物理老师倡导同学们对身边一些常见的物理量进行估测,以下是他们交流的一些估测数据,你认为估测数据中符合实际的是()A . 25 寸彩电的功率约 25WB . 正常人的步行速度约 4 km/hC . 洗澡水的温度约60℃D . 探究凸透镜成像规律时凸透镜的焦距约 50cm2. (2分) (2016八上·江夏期中) 关于声的应用,下列说法不正确的是()A . 地震、火山喷发、台风、海啸等,都伴有超声波产生B . 超声导盲仪、倒车雷达及声呐都是利用了“回声定位”原理C . 借助超声波医生可以准确地获得人体内部脏器的图象信息,工业上可给产品内部探伤D . 超声清洗机、超声碎石仪是利用了声波传递能量的性质3. (2分)下列现象由光的折射形成的是()A . 桥在水中形成“倒影”B . 手在灯光下形成影子C . 池水看起来比实际浅D . 汽车后视镜可扩大视野4. (2分) (2016八上·宜阳期中) 下列现象不可能出现的是()A . 寒冷的冬天,冰冻的衣服会变干B . 潮湿的夏天,从冰箱里取出的啤酒瓶上会出现小水珠C . 有风的天气,游泳后从水中出来会感觉冰冷D . 冬天戴眼镜的人从室内走到室外,眼镜上会出现小水珠5. (2分) (2020八下·陕西期中) 随着我国快递行业的蓬勃发展,各种各样的派件方式被人们充分利用了起来。

一些地理条件比较恶劣的地区。

比如边远哨所、南海岛屿。

高山峻岭等,甚至使用无人机运送货物。

如图所示,无人机下方用绳子悬挂一个重物,不考虑空气阻力,则无人机在空中()A . 悬停时,重物受到的重力与重物对绳子的拉力是一对平衡力B . 加速上升时,重物受到非平衡力的作用C . 匀速下降时,重物所受的重力大于绳子对重物的拉力D . 水平匀速飞行时,悬挂重物的绳子会偏离竖直方向6. (2分) (2019九上·雁塔月考) 将地面上的一本物理课本捡起来放到课桌上,对物理课本所做的功最接近()A . 0.02JB . 0.2JC . 2JD . 20J7. (2分)(2018·临沂模拟) 如图所示,是游玩海底世界时,小华观察到的鱼吐出气泡上升情景.气泡上升过程中受到的浮力和气泡内气体的压强变化情况是()A . 浮力、压强均变小B . 浮力、压强均变大C . 浮力变大,压强变小D . 浮力、压强均不变二、填空题 (共7题;共16分)8. (2分)(2017·罗平模拟) 有人形容歌手李健嗓音清澈,辨识度极高,这是指李健声音的________比较独特;李健自弹自唱时不断移动手指按压吉他琴弦的不同位置,这是为了改变琴声的________.9. (3分) (2016七下·江汉油田期中) 公交车上安装有“电视监控器”,该装置的光学系统是________(填“凸透镜”或“凹透镜”),“电视监控器”的摄像头能成________(选填“正立”或“倒立”)、________(选填“放大”或“缩小”)的实像.10. (3分) (2020八下·上海月考) 甲、乙两辆小车同时、同地、同方向沿水平路面运动,它们的 s-t 图像如图所示。

青岛市市南区八年级下学期语文期末考试试卷

青岛市市南区八年级下学期语文期末考试试卷

青岛市市南区八年级下学期语文期末考试试卷姓名:________ 班级:________ 成绩:________一、选择题 (共4题;共8分)1. (2分)划线字注音都正确的是()A . 揣(chuǎi)摩惴惴(zhùi)湍急(tuān)B . 香菱(líng)凌(líng)云棱角(líng)C . 塞(sài)上山寨(zhài)关塞(sài)D . 墟(xū)里嘘(xū)寒欷歔(xú)2. (2分)选出下列解释正确的一项是()。

A . 鲜为人知鲜:新鲜,奇异B . 鞠躬尽瘁鞠躬:一种礼节C . 家喻户晓喻:比喻D . 阔别:长时间的分别3. (2分) (2017七上·和县期中) 下列四句中没有语病的一句是()A . 我们要认真地把教室布置得干干净净。

B . 为了防止这类交通事故不再发生,我们加强了交通安全的教育和管理。

C . 老师认真地听了我们的发言,并作了总结。

D . 通过这次实践活动,使我深受教育。

4. (2分) (2017八上·台商期末) 下列文学常识说法不正确的一项是()A . 《答谢中书书》和《小石潭记》中,“书”即书信,又叫“尺牍”或“信札”,多记事陈情,“记”主要是记载事物,往往通过记事、记物、写景、记人来抒发作者的感情或见解。

两者都是古代的文体。

B . 《山坡羊·潼关怀古》中“山坡羊”是曲牌名,“潼关怀古”是曲的标题。

C . 《故乡》选自《呐喊》,作者鲁迅,我国伟大的文学家、思想家、革命家。

D . 《我爱这土地》是诗人艾青远离他乡时写的一首思乡诗。

二、字词书写 (共1题;共4分)5. (4分) (2017八上·无锡期中) 根据拼音写汉字。

chùyēmùfèng________立抽________________集如数________还三、句子默写 (共1题;共10分)6. (10分) (2017七上·盐城月考) 古诗文名句默写。

八年级数学下册期末试题(青岛版).docx

八年级数学下册期末试题(青岛版).docx

八年级数学(下)期末测试题(青岛版)(时间:100分钟,满分:120分)一、选择题(3*12=36)1 .已知1 ]2 = J '则a 的取值范围是( )V aaA. aWOBo a<0 C 。

OVaWl D 。

a>02.在 RtAABC 中,ZC=90°, BC 二必,AC 二 JI?,则NA 二( )A. 90°B. 60°C. 45°D. 30°3.若使二次根式JK 在实数范围内有意义,则X 的取值范围是 ()10.如图所示,A 、B 、C 分别表示三个村庄,AB=1000米,BC=600米,AC=800米,在社 AA会主义新农村建设中,为了丰富群众生活,拟建一个文化活动中心,要求这三个村 「 庄到活动中心的距离相等,则活动中心P 的位置应在()A. BC 中点B. AB 中点C. AC 中点D. /C 的平分线与AB 的交点 t 11. 一张折叠型方桌如图甲,其主视图如图乙,已知AO=BO=50cm, C0=D0=30 cm,现将桌子放平,要使桌面a 距离地面高为40cm,则两条桌腿需要叉开的角度/A0B 为()A. X>2B. X>2C. X (2D. XW24..在RtAABC 中,如果每条边都扩大为原来的4倍,则锐角A 的余弦值A.缩小』B 。

4扩大4倍 Co 没有变化 Do 不能确定5. 正方形网格中,ZA0B 如图放置, 则cosZAOB 的值为(6. 7. Bo2^5Co Do下列命题中是真命题的是( A.若 | a | = | b | ,则 a = bC. 相等的两个角一定是对顶角 若一组数据2, 4,y//Bx, 若 £ = b‘,贝lj a=b 两组角对应相等的两个三角形相似6, 8的平均数是6,则这组数据的方差是Bo DoA.Bo 8 CoDo 40如图, 的是(8、 已知Z1=Z2, ) AB _ ACAD — AEZB=ZD那么添加下列一个条件后,仍无法判断△ ABC-AADEAB _ BC AD — DEZC=ZAED3A.C.B.D. 9.已知在 RtAAB C 中,ZC = 90° sin A--,贝 OtanB 的值为(5c.244A.- 3 4B.- 53 D.-4EA 、mW3B 、m<3C> mN3 D 、m>32对于二次根式妒以下说法不正确的是()A 、它是-个正数B 、是『个无理数C 、是最简二次根式D 、它的最小值是3 3、在AABC 和Z\A' B' C'中,AB=A' B' , ZB=ZB ,,补充条件后仍不一定能保证△ ABC 丝Z\A' B' C',则补充的这个条件是()A 、BC=B' C'B 、ZA=ZA ;C 、AC=A' C'D 、ZC=ZC ,4下列命题中正确的是() ①全等三角形对应边相等;②三个角对应相等的两个三角形全等;③三边对应相等的两三角形全等;④有两边对应相等的两三角形全等。

山东省青岛市市南区2022-2023学年八年级下学期期末英语试题

山东省青岛市市南区2022-2023学年八年级下学期期末英语试题

山东省青岛市市南区2022-2023学年八年级下学期期末英语试题一、单项选择1.Which is a picture of a whale?A.B.C.D.2.If you have questions, feel free ________ me.A.asks B.asking C.to ask D.asked3.Ten years ago she was a little girl. Now she has ________ a famous film star.A.turned down B.turned off C.turned on D.turned into4.—I have never been to a space museum.— ________A.Me, too.B.Me neither.C.Neither I have.D.So have I. 5.The bus stop is ________ our school. We have to cross the road to get there.A.opposite B.beside C.under D.inside6.We are considering ________ the old car that we have had for 10 years.A.to sell B.to sale C.selling D.sold7.The Nile is longer than ________ river in the world.A.any B.any other C.the other D.another 8.There are four answers. I really don’t know ________.A.which choose B.choose which oneC.to choose which D.which to choose9.How time flies! Several years ________ since we started our middle school life.A.have pass B.has passed C.will pass D.have passed 10.The amusement park ________ for ten years.A.has been open B.has been opened C.has been close D.has closed二、完形填空In China, when you 11 someone, people might say he or she eats a bowl of door-closing thick soup. In Chinese, it is called “chi bi men geng”. What is the story 12 this saying?It is said that during the Tang dynasty, there lived a beautiful woman named Shi Feng. Many young men wanted to 13 her. But Shi was hard to impress. She asked her admirers to write 14 to her. She did this to see how 15 they were.If Shi liked someone’s poems, she would 16 to meet him. If she didn’t, she wouldn’t meet him. But then, to be polite, she would at least give him a bowl of “geng” to eat.“Geng” is a type of thick 17 . It is usually made with grain, fruit or vegetables.As time went by, “eating a bowl of thick soup” came to mean “being refused”. The dish was also nicknamed “door-closing thick soup”, 18 Shi would not open her door for the people who received the dish.But there is a twist of this story. “Door-closing thick soup” was said to be so 19 that more people started coming to Shi’s door—not to marry her, but to have a 20 of the soup!11.A.greet B.invite C.beat D.refuse 12.A.behind B.for C.on D.with13.A.call B.wake C.marry D.copy 14.A.songs B.poems C.books D.letters 15.A.handsome B.kind C.talented D.funny 16.A.agree B.disagree C.forget D.remember 17.A.tea B.fruit C.vegetable D.soup 18.A.since B.so C.but D.though 19.A.cold B.hot C.delicious D.helpful 20.A.look B.taste C.rest D.cold三、阅读理解21.Which season is this poem about?A.Spring.B.Summer.C.Autumn.D.Winter. 22.What is a daisy?A.A body part.B.A kind of bird.C.A kind of flower.D.A kind of smell. 23.The springtime makes us ________.A.sweet B.bright C.hot D.happy24.How many CDs will you get if you pay $100?A.5.B.10.C.11.D.12.25.What number will you call if you want to buy some CDs?A.0800-707-237.B.0800-767-237.C.0800-168-168.D.0800-707-168.Mr. Brown’s home was less than two miles from his office, so he could drive home for lunch every day. But every time he drove home in the middle of the day, other cars were parked on the road outside his house and there was no place for his own car. He had to drive two hundred meters more before he could find a place to park his car. Then he had to walk back home. This made him very angry.Then he set up a board in the garden facing the road. It had two words “No Parking” on it, but people still parked their cars there. People only obeyed a police notice. There were no parked cars where there was a blue board with white letters on it:Mrs. Brown asked her husband to make one just like the police notice. Mr. Brown said hewas not the police and couldn’t use the word “police”. But he decided he must find a way out.Several days later, Mr. Brown made a blue board with white letters:“Oh!” Mrs. Brown said,“You told me you weren’t going to use the word ‘Police’, but why do you do it now?”“Is it?” Mr. Brown asked. “Look again more carefully.”Mrs. Brown looked again and started to laugh. “You are really very clever.”26.How far was it from Mr. Brown’s home to his office?A.2 miles.B.Less than 2 miles.C.More than 2 miles.D.200 meters. 27.Where did Mr. Brown have lunch every day?A.At home.B.At his office.C.In his car.D.In the garden. 28.Why couldn’t Mr. Brown park his car outside his own house?A.Because he liked to walk back home.B.Because there were no parking lots.C.Because there was a “No Parking” board outside his house.D.Because other cars were parked on the road outside his house.29.How many boards did Mr. Brown make?A.1.B.2.C.3.D.4.30.What were the words on the board Mr. Brown made in the end?A.No Parking B.Police: No ParkingC.Polite Notice: No Parking D.Police Notice: No ParkingHow does a starfish see?Most starfish have five arms. 31 They help the starfish to see and feel their food.On the end of each arm is a small dot called an eyespot. 32 It lets the starfish know if something is near. Each arm also has a very small feeler. 33When a starfish looks for food, it walks on its arms. The five arms can look in five places at the same time. 34 The eyespots tell the starfish that something is there. The feelers tell it that the clam is good to eat. So the starfish puts its arms around the hard shell of the clam. It pulls the clam open. 35 When supper is over, the starfish moves on.根据短文内容,把A—E 五个选项填入文中空缺处,使短文内容完整正确。

2022年山东青岛市南区八年级下学期期末数学试卷(含答案)

2022年山东青岛市南区八年级下学期期末数学试卷(含答案)

2022年山东青岛市南区八下期末数学试卷1.民族图案是数学文化中的一块瑰宝.下列图案中,是轴对称图形但不是中心对称图形的是( )A.B.C.D.2.据气象台预报,2022年7月某日青岛最高气温27∘C,最低气温21∘C,则当天气温t(∘C)的变化范围是( )A.t>21B.t≤27C.21<t<27D.21≤t≤273.下列从左边到右边的变形,属于因式分解的是( )A.(3−x)(3+x)=9−x2)B.4a+1=a(4+1aC.x2−7x+12=(x−3)(x−4)D.4yz−2y2z+z=2y(2z−yz)+z4.如图,AE与BF交于点O,点O在CG上,根据尺规作图的痕迹,判断下列说法不正确的是( )A.AE,BF是△ABC的内角平分线B.CG也是△ABC的一条内角平分线C.AO=BO=COD.点O到△ABC三边的距离相等5.如图,已知一次函数y=kx+b(k,b为常数,且k≠0)的图象与x轴交于点A(3,0),若正比例函数y=mx(m为常数,且m≠0)的图象与一次函数的图象相交于点P,且点P的横坐标为1,则关于x的不等式(k−m)x+b<0的解集为( )A.x<1B.x>1C.x<3D.x>36.如图,已知△ABC中,∠B=50∘,P为△ABC内一点,过点P的直线MN分别交AB,BC于点M、N.若M在PA的中垂线上,N在PC的中垂线上,则∠APC的度数为( )A.100∘B.105∘C.115∘D.120∘7.已知关于x的不等式组{x−32≤2x−13−1,x−a<0恰好有6个整数解,则a的取值范围为( )A.4≤a≤5B.4≤a<5C.4<a<5D.4<a≤58.如图,平行四边形ABCD的对角线AC,BD相交于点O,E是AB中点,且AE+EO=4,则平行四边形ABCD的周长为( )A.20B.16C.12D.89.化简分式:12x2y39x3y2=.10.如果一个正多边形每一个内角都等于144∘,那么这个正多边形的边数是.11.解关于x的方程x−3x−5=a5−x−3有增根,原方程无解,则常数a的值等于.12.如图,在△PAB中,PA=PB,M,N,K分别是PA,PB,AB上的点,且AM=BK,BN=AK,若∠MKN=42∘,则∠P的度数为∘.13.小明将一张正方形纸片按如图所示顺序折叠成纸飞机,当机翼展开在同一平面时(机翼间无缝隙),∠AOB的度数是.14.如图,AB为等腰直角△ABC的斜边,E为AB的中点,F为AC延长线上的一个动点(F与点C不重合),线段FB的垂直平分线交线段CE于点O,D为垂足,当F点运动时,给出下列四个结论,其中一定正确的结论有,(请填写正确序号)①点O到△ABF三个顶点的距离相等;② OF⊥OB;③ √2CE+FC=AB;④ S△AEC<S△BOF.15. 用圆规、直尺作图,不写作法,但要保留作图痕迹.如图,OA ,OB 表示两条道路,在 OB 上有一车站(用点 P 表示).现在要在两条道路形成的 ∠AOB 的内部建一个报亭 M ,要求报亭到两条道路的距离相等且在过点 P 与 OA 平行的道路上.请在图中作出报亭的位置.16. 解答下列各题.(1) 将下列各式因式分解.① 6ab 3c +4a 2b 2.② −3a +12a 2−12a 3.(2) 先化简,再求值:m−4m 2−9⋅(1+14m−7m 2−8m+16)÷1m−3. (3) 解不等式组 {5x ≥3x −1,x+23−2<x−56, 并写出它的非负整数解.17. 如图,在平面直角坐标系中,△ABC 的三个顶点坐标为 A (−3,4),B (−4,2),C (−2,1),△ABC 绕原点逆时针旋转 90∘,得到 △A 1B 1C 1,将 △A 1B 1C 1 向右平移 6 个单位,再向上平移 2 个单位得到 △A 2B 2C 2.(1) 画出 △A 1B 1C 1.(2) P (a,b ) 是 △ABC 的边 AC 上一点,△ABC 经旋转、平移后点 P 的对应点分别为 P 1,P 2,请写出点 P 1,P 2 的坐标.18.某超市预测某品牌饮料有销售前景,用1200元购进一批该饮料,试销售后果然供不应求,又用5400元购进这种饮料,第二批饮料的数量是第一批的3倍,但单价比第一批贵2元.(1) 第一批饮料进货单价为多少元?(2) 若二次购进饮料按同一价格销售,两批全部售完后,获利不少于3000元,则销售单价至少为多少元?19.已知:如图,在平行四边形ABCD中,点E,F在AC上,且AE=CF.(1) 求证:四边形BEDF是平行四边形.(2) 当AB=3,AC=4,AD=5时,求平行四边形ABCD的面积.20.如图,将一张长方形纸板按图中实线裁剪成九块,其中有两块是边长都为m的大正方形,两块是边长都为n的小正方形,五块是长为m,宽为n的全等小长方形,且m>n(以上长度单位:cm).(1) 观察图形,可以发现代数式2m2+5mn+2n2可以因式分解为.(2) 若每块小长方形的周长是20cm,且每块大正方形与每块小正方形的面积差为40cm2,求这张长方形纸板的面积.21.如图,在△ABC中,AB=7,BC=14,M为AC的中点,OM⊥AC交∠ABC的平分线于O,OE⊥AB交BA的延长线于E,OF⊥BC.垂足为F.(1) 求证:AE=CF.(2) 求线段BE的长.22.学校通过调查发现很多同学非常喜欢羽毛球这项体育活动,决定开展羽毛球选修课,购进10副某一品牌羽毛球拍,每副球拍配x(x≥2)个羽毛球,供应同学们积极参加体育活动.学校附近有甲、乙两家体育文化用品商场,都有这种品牌的羽毛球拍和羽毛球岀售,且每副球拍的标价均为30元,每个羽毛球的标价为3元,目前两家商场都有优惠活动:甲商场:所有商品均打九折(按标价的90%)销售;乙商场:买一副羽毛球拍送2个羽毛球.设在甲商场购买羽毛球拍和羽毛球的费用为y1(元),在乙商场购买羽毛球拍和羽毛球的费用为y2(元).请解答下列问题:(1) 分别写出y1,y2与x之间的关系式.(2) 若只能在一家超市购买,当x取何值时,在甲商场购买更划算.(3) 若可以同时在两家商场分别购买部分商品,每副球拍配30个羽毛球,则购买费用最少为多少元?23.回答下列各题.(1) 观察下列算式,并完成填空:1=12;1+3=4=22;1+3+5=9=32;1+3+5+7=16=42;1+3+5+⋯+(2n−1)=.(n是正整数)(2) 如图是某市一广场用正六边形、正方形和正三角形地板砖铺设的图案,图案中央是一块正六边形地板砖,周围是正方形和正三角形的地板砖.从里向外第一层包括6块正方形和6块正三角形地板砖;第二层包括6块正方形和18块正三角形地板砖;以此递推.①第3层中分别含有块正方形和块正三角形地板砖.②第n层中含有块正三角形地板砖(用含n的代数式表示).(3) 【应用】该市打算在一个新建广场中央,采用如图样式的图案铺设地面,现有1块正六边形、150块正方形和3000正三角形地板砖,问:铺设这样的图案,最多能铺多少层?请说明理由.24.已知:如图,在平行四边形ABCD中,AB=6 cm,BC=8 cm,∠ABC=60∘,两条对角线AC与BD相交于点O.点P在射线BC上,从点B出发以 1 cm/s的速度向右匀速运动,连接PO并延长,与AD相交于点Q.设点P运动的时间为t.(1) 求证:AQ=PC.(2) 当点P在线段BC上运动,四边形OPCD的形状在发生相应的变化,写出四边形OPCD的面积S关于t表达式.(3) 当点P在线段BC上运动,t为何值时,四边形OPCD的面积等于平行四边形ABCD面积的3.8(4) 连接PD,随着点P在射线BC上运动,是否存在某一时刻t,使△BPD成为等腰三角形?若存在,直接写出t的值;若不存在,请说明理由.答案1. 【答案】B2. 【答案】B【解析】因为该天青岛气温最高27摄氏度,最低21摄氏度,则温度范围为21≤t≤27.3. 【答案】C4. 【答案】C【解析】A.由尺规作图的痕迹可知:AE,BF是△ABC的内角平分线,所以选项A正确;B.根据三角形三条角平分线交于一点,且点O在CG上,所以CG也是△ABC的一条内角平分线,所以选项B正确;C.三角形三边中垂线的交点到三个顶点的距离相等,所以选项C不正确;D.因为角平分线的点到角两边的距离相等得:点O到△ABC三边的距离相等,所以选项D正确.5. 【答案】B【解析】(k−m)x+b<0转化为kx+b<mx,由图象可知,当x>1时,y=mx的图象在y=kx+b的图象上方,即kx+b<mx.6. 【答案】C【解析】∵∠ABC=50∘,∴∠BMN+∠BNM=180∘−∠ABC=180∘−50∘=130∘.∵∠BMN+∠AMP+∠BNM+∠CNP=180∘+180∘=360∘,∴∠AMP+∠CNP=360∘−(∠BMN+∠BNM)=360∘−130∘=230∘.∵若M在PA的中垂线上,N在PC的中垂线上,∴AM=PM,PN=CN,∴∠MAP=∠APM,∠CPN=∠PCN,∴∠MAP+∠APM+∠CPN+∠PCN=360∘−230∘=130∘,∴2∠APM+2∠CPN=130∘,∴∠APM+∠CPN=65∘,∴∠APC=180∘−(∠APM+∠CPN)=180∘−65∘=115∘.故选C.7. 【答案】D【解析】{x−32≤2x−13−1, ⋯⋯①x−a<0, ⋯⋯②由①有,3(x−3)≤2(2x−1)−6,3x−9≤4x−2−6,8−9≤4x−3x,−1≤x.由②有,x−a<0,x<a.∴−1≤x<a,∵有6个整数解,∴4<a≤5.8. 【答案】B【解析】∵四边形ABCD是平行四边形,∴OA=OC,∵AE=EB,∴OE=12BC,∵AE+EO=4,∴2AE+2EO=8,∴AB+BC=8,∴平行四边形ABCD的周长=2×8=16.9. 【答案】4y3x【解析】12x2y39x3y2=129⋅x2x3⋅y3y2 =4y3x.10. 【答案】10【解析】设边数为n,n×144∘=(n−2)×180∘,解得n=10.11. 【答案】−2【解析】方程两边同乘x−5,有:x−3=−a−3(x−5).x−3=−a+15−3x.4x=18−a.x=18−a4.又∵x为增根,18−a4=5,a=−2.12. 【答案】96【解析】∵AP=BP,∴∠A=∠B,又AM=BK,BN=AK,∴△AMF≌△BKN,∴∠NKB=∠AMK,又∠AKM+∠MKN+∠NKB=180∘,∠MKN=42∘,∴∠MKA+∠NKB=180∘−42∘=138∘,∴∠AMK+∠AKM=138∘,∴∠A=180∘−138∘=42∘,∴∠B=∠A=42∘,∴∠P=180∘−∠B−∠A=180∘−42∘−42∘=96∘.13. 【答案】45°【解析】∵一共折叠了3次,每次折叠角的度数都变为原来的一半,∴每个最小的角的度数为180÷2÷2÷2=22.5∘,∴∠AOB=2×22.5∘=45∘.14. 【答案】①②④【解析】如图,连接AO,∵CA=CB,AE=EB,∴CE⊥AB,∴OA=OB,∵OD垂直平分线段BF,∴OF=OB,∴OA=OF=OB,∴点O到△ABF三个顶点的距离相等,故①正确;设BC交OF于J,∴AC=BC,CO=CO,AO=BO,∴△ACO≌△BCO(SSS),∴∠CAO=∠CBO,∵OA=OF,∴∠CAO=∠CFJ,∴∠CFJ=∠OBJ,∵∠CJF=∠OJB,∴∠JOB=∠JCF=90∘,∴OF⊥OB,故②正确;∵√2CE=AC,AC+CF=AF,显然AF不一定等于AB、故③错误;∵△ABC为等腰直角三角形,E为AB中点,∴AE=CE=BE=12AB,CE⊥AB,∴△ACE面积为S△AEC=12AE×CE=12BE2,∵OF⊥OB,OF=OB,∴△BOF面积S△BOF=12OF×OB=12OB2,在Rt△OBE中,OB为斜边,BE为直角一边,∴OB>BE,∴12BE2<12OB2,∴S△AEC<S△BOF,故④正确.15. 【答案】如图所示.【解析】以点O为圆心,任意长度为半径画圆弧,分别交OA,OB于点C,D;再分别以点C,D为圆心,大于12CD长为半径画圆弧,两弧交于点E,连接OE并延长;再以点P为圆心,以OC长为半径画圆弧FG,交OB于点F,再以点F为圆心,CD长为半径画圆弧与弧FG交于点G,连接PG并延长,交OE于点M,此时点M即为所求.由作图方法可知,OE为∠AOB的角平分线,点M在∠AOB的角平分线上,则点M到OA与点M到OB的距离相等;由作图方法可知,OC=OD=PG=PB,CD=FG,则△OCD≌△PGF(SSS),即∠COD=∠GPF,∴OA∥PM(同位角相等,两直线平行),故报亭M到两条道路的距离相等且在过点P与OA平行的道路上,即图中M为所求.16. 【答案】(1) ① 原式=2ab2(3bc+2a).②原式=−3a(1−4a+4a2)=−3a(2a−1)2.(2) 原式=m−4(m+3)(m−3)⋅m 2−8m+16+14m−7(m−4)2⋅(m −3)=m 2+6m+9(m+3)(m−4)=(m+3)2(m+3)(m−4)=m+3m−4.(3) 解①得x ≥−12,解②得x <3,∴−12≤x <3,∴ 非负整数解为 x =0,1,2.17. 【答案】(1) 如图所示:△A 1B 1C 1,△A 2B 2C 2,即为所求.(2) ∵A (−3,4),A 1(−4,−3),B (−4,2),B 1(−2,−4),∴P (a,b ),则 P 1(−b,a ),∵A 1(−4,−3),B 1(−2,−4),A 2(2,−1),B 2(4,−2),∴P 2(−b +6,a +2).18. 【答案】(1) 设第一批饮料进货单价为 x 元,则第一批饮料进货单价为 (x +2) 元.依题意,得:5400x+2=3×1200x .解得:x =4.经检验,x =4 是原方程的解,且符合题意.答:第一批饮料进货单价为 4 元.(2) 第一批饮料进货数量为 1200÷4=300(瓶),第二批饮料进货数量为 5400÷(4+2)=900(瓶).设销售单价为 y 元,依题意,得:(300+900)y −(1200+5400)≥3000.解得:y ≥8.答:销售单价至少为 8 元.19. 【答案】(1) 连接 BD 交 AC 于点 O ,∵ 四边形 ABCD 为平行四边形,∴OA =OC ,OB =OD .∵AE =CF ,∴OA −OE =OC −CF ,∴OE =OF .又 ∵OB =OD ,∴ 四边形 BEDF 为平行四边形.(2) 在平行四边形 ABCD 中,BC =AD =5,AB =CD =3,AC =4,∴AC 2+CD 2=42+32=52.又 ∵AD 2=52,∴AC 2+CD 2=AD 2,∴△ACD 为直角三角形,∴S △ACD =12AC ⋅CD =12×4×3=6,∴S 平行四边形ABCD =2S △ACD =2×6=12.20. 【答案】(1) (2m +n )(m +2n )(2) ∵m 2−n 2=40,∴(m +n )(m −n )=40,∵m +n =20÷2=10,∴m −n =4,∴{m +n =10,m −n =4,∴{m =7,n =3,∴2m +n =17,m +2n =13,∴ 面积为:(2m +n )(m +2n )=17×13=221(cm 2).21. 【答案】(1) ∵OB 平分 ∠ABC ,又 ∵OE ⊥AB ,OF ⊥BC ,∴OE =OF .∵OM ⊥AC ,M 为 AC 中点,∴OM 垂直平分 AC ,∴OA =OC ,∴△AEO ≌△CFO (HL ),∴AE =CF .(2) 易证 △BEO ≌△BFO (AAS ),∴BE =BF .∵AB =7,BC =14,设 AE =CF =x ,∴x +7=14−x ,x =72,∴BE =7+72=212.22. 【答案】(1) 由题意得:y 1=(10×30+3×10x )×0.9=27x +270.y 2=10×30+3×(10x −20)=30x +240.(2) 当 y 1=y 2 时,27x +270=30x +240,得x =10.当 y 1>y 2 时,27x +270>30x +240,得x<10.∴当x<10时,在甲超市划算.(3) 设在乙超市买a副拍,送2a只羽毛球,则在甲超市买(10−a)副拍,买(300−2a)个羽毛球,则总费用W=30a+27(10−a)+2.7(300−2a)=270−27a+30a+2.7×300−5.4a=−2.4a+1080.∴当a=10时,W最小,W=−24+1080=1056.∴购买费用最少为1056.23. 【答案】(1) n2(2) 6;30;6(2n−1)或12n−6(3) 铺设这样的图案,最多能铺22层.理由如下:∵150÷6=25(层),∴150块正方形地板砖可以铺设这样的图案25层;∵铺设n层需要正三角形地板砖的数量为:6[1+3+5+⋯+(2n−1)]=6n2,∴6n2=3000,n2=500,n=10√5≈22.36.∴3000块正三角形地板砖最多可以铺设这样的图案22层.∴铺设这样的图案.最多能铺22层.【解析】(2) ① ∵第一层包括6块正方形和6块正三角形地板砖,第二层包括6块正方形和6+12=18块正三角形地板砖,∴第三层包括6块正方形和18+12=30块正三角形地板砖.② ∵第一层6=6×1=6×(2×1−1)块正三角形地板砖,第二层18=6×3=6×(2×2−1)块正三角形地板砖,第三层30=6×5=6×(2×3−1)块正三角形地板砖,∴第n层6(2n−1)块正三角形地板砖.24. 【答案】(1) 四边形ABCD是平行四边形,∴AD∥BC,OA=OC,∴∠OAQ=∠OCP,又∵∠AOQ=∠COP,∴△AOQ≌△COP(ASA),∴AQ=PC.(2) 过点A作AH⊥BC,交BC于点H,过点O作OE⊥BC交BC于点E,∵AB=6,∠ABC=60∘,∴∠BAH=30∘,∴BH=12AB=12×6=3,∴AH=√AB2−BH2=√62−32=3√3,∵四边形ABCD为平行四边形,∴AO=OC,且AH⊥BC,OE⊥BC,∴△COE∽△CAH,∴COAC =OEAH=12,∴OE=3√32,∵S△BCD=12⋅BC⋅AH,S△BOP=12BP⋅OE,且S四边形OPCD=S△BCD−S△BOP=12BC⋅AH−12BP⋅OE=12×8×3√3−12t⋅3√32=−3√34t+12√3(0≤t≤8),即S=−3√34t+12√3(0≤t≤8).(3) ∵BC=8,AH=3√3,∴S平行四边形ABCD=BC⋅AH=8×3√3=24√3,则S=38×24√3=9√3=−3√34t+12√3,3√34t=3√3,t=4.(4) 存在,t的值为7411或2√37或22.【解析】(4) ①当BP=PD时,由(1)可知,平行四边形ABCD中BC边上的高为3√3,过点P作BD的垂线,∵BP=PD,∴过P作BD的垂线交点一定为O,过点D作DF⊥BC交BC延长线于F,则DF=3√3,∵∠DBF=∠DBF,PO⊥BD,DF⊥BC,∴Rt△BPO∽Rt△BDF,∴BPBD =BOBF,∵∠ABC=∠DCF=60∘,且AB=CD=6,∴易知CF=3,则BF=BC+CF=11,则BD=√BF2+DF2=√112+(3√3)2=2√37,∴BP=BD⋅BOBF =2√37⋅12⋅2√3711=7411,即t=7411;②当BP=BD时,如图,由①知,BD=2√37,则此时BP=2√37,即t=2√37;③当BD=PD时,过点D作DM⊥BC,交射线BC于点M,由①知,此时BM=11,∵BD=PD,且DM⊥BP,∴BM=PM=12BP,∴BP=2BM=2×11=22,即t=22.综上所述,使△BPD为等腰三角形时,t的值为7411或2√37或22.。

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第二学期期末质量检测八年级英语试题(120分钟,105分)听力部分20分,笔试85分IV单项选择。

从每小题所给的四个选项中选出能够完成或回答这一小题的最佳答案。

(共30小题,每小题0.5分,共15分)21. Mr. Gree n is a kind man. He always tries his best to help _____ weak.A. aB.theC.a nD.不填22. ——I have bee n to Tibet before. What about you,T ina?A. tooB.alsoC.eitherD.n either23. This elepha nt eats ________ than this pan da.A. fewerB.much lessC.ma ny times moreD.much24. ——Will you go to the cin ema, Mary?---1 ' m afraid not. I ______ m^tickets.A.loseB.lostC.am losi ngD.have lost25. The movie is so in teresti ng that two ____ p eople habe see n it in the past few days.lio nli onslio n oflio ns of26. Look at the couple. They _____ for five years.A.marriedB.have bee n marriedC.got marriedD.be married27. ——I ' m sorry to keep you waiting for long.——Never min d. I have bee n here_____ .A.te n minu tes agoB.just nowC.for only a few minu tesD.i n the past28. ___________ To be _______________ , I don ' t know to do with the old bike.A.h on est ,whatB.hon est , howC.true, whatD.true, how29. ----Which of the two T-shirts do you like better?--- ______ ,Mom, I don ' t like their colors.30. ______ is the Qomolangma? It' s 8844meters. It ' s very hard__ A.How long, to climb B.How far, climb it C.Howhigh, to climbto climb31. _________ ---- ? ——Since two years ago.A.How long have you lived here B.Whe n did you live hereC.How long did you live hereD.Did you live here two years ago32.1 can still remember this thing, _____ it was so long ago.A.as forB.eve n thoughC.becauseD.so that33.----Many of the ani mals ______ the polluti on every year.——Right. The government will find ways to solve the problem.A.fight withB.take inC.killD.die from34.our teacher ofte n en courages us _____ the endan gered ani mals.A.to protectB.protecti ngC.protectD.protected35. Mrs.White was _____ tired _____ she couldn ' t stand up by herself.A.so, thatB.eno ugh, toC.too, toD.such, that36. Ma ny people do not realize the importa nee of health __ they have falle n ill.A.si neeB.u ntilC.whileD.after37. The match was really fantastic, ____ when Sam scored in the last minu te.A.especiallyB.exactlyC.probablyD.actually38.1 met a good frie nd of mine while I ____ on the street.A.walksB.walkC.was walki ngD.am walk ing39. _________ we know, this is the most popular scie nee museum in In dia.A.EitherB.NeitherC.BothD.N one A.As far as B.As long as C.As well as D.As much asD.How deep,40. ——Did you use to ____ your diary in the bookcase?——Yes, I did. I didn' t want my parents to read it. A. write B.return C.hide pare41. We found______ very in teresti ng to lear n about Chin ese culture.A. it isB.thatC.it D .that is42. ---Who does the boat belo ng to?---It bel ongs to _____ .A.Alex ' sB.heC.hisD.Alex43. The clothes are very beatiful in this shop, and _____ of them are for childre n.A.o ne thirdsB.two thirdC.three quartersD.three fourth44. The teacher divided the stude nts into small groups _____ their hobbies.A.i n order toB.accord ing toC.as forD.eve n though45. Everybody agrees _____ families and friends always makes people sad.A.parti ng withB.grows upC.part withD.give up46. ----Your aunt will walk the dog tomorrow moning.Yeah, uni ess bad weather——At the subway stati ons.50. __________________________________ T he population in our city is getting ,and it has caused a lot of problems.her. A.stops B.will stop C.to stop D.stop47. C rusoe went out with his gun every day an imals for food.A.killi ngB. killedC.killsD.to kill48. T he movie was so funny that I couldn 't stopA.to laughB.l augh ingughD.l aughed 49.-——can you see such sig ns?A.What elseB.What otherC.Where elseD.When othersV 阅读理解 阅读下列短文,做出正误判断或选出最佳答案。

A 篇为判断正(A )误(B ) 题,B 、C 篇为选择题。

(共15题,每小题1分,共15分)AFor many girls, having long beatiful hair is something to be proud of. Rachel Barrett, 15,recentlycut her long hair and looked like a boy. But she was also proud of herself. She donated ( 捐赠)herhair to a charity and raised a lot of mon ey.Barrett is a middle school stude nt in Brita in. On Nov.16 at her school ' s tale nt con test, Barrett her hair cut off in front of around 300 stude nts. The hair would be used to make wigs ( 假发)forchildren with cancer (癌症).She has raised several thousand pounds and the money will help withcancer.Barrett got the idea when she visited her friend' s mom with cancer. “ All of her hair had fallen (and it really made me want to do someth ing, t said/'WBairrelbe found out that the charityLittle Princess Trust could make wigs for children with cancer, she decided to donated her ownhair, even though she loved it. "I saw how it was for my friend ' s mom to lose her hair. So if my hair can go to help a young child with cancer then it' s worth it, ” she said. Cath Stanton, a teacher, felt proud of the girl.-heat e d,lsealwtays maves us a lot, ” she said. “ She has done a moving job.” Many students liked the idea and donated money.51. Rachel Barrett is 15. 52. Barrett cut her long hair because she wan ted to take part in a tale nt con test.53. Barrett wan ted to don ate her long hair after she visited her frie nd' s mom with can cer.54. Barrett was proud of what she did.55. From this passage, we know Barrett is a kind girl. BPatrick Joh nson, an artist for the Wash ington Post, found some treasure in his newhouse ——35,000 dollars in a place where no one could see it. Although he had car and house payments (贷款), he still decided to return all of the money to the previous ( 先前)owner of thehouse, Mr. Williams. Would you have done the same?A.more and moreB.much moreC.a lot ofD.l arger and largerJust hours after he had bought the house, Patrick came into the small house , where he was planning to lay out (摆放)his tools and hang things up. He looked up and noticed a little hole inthe wall. He did n't know what it was in side , so he walked towards the wall. It was very darkin side, but an old box caught his eye."I caught the thing it was heavy. I thought it might be some pieces of wood , ” he said. Actually itwas not. It was filled with lots of dollar bills. But he and his wife knew they had to return themoney to Mr. Williams. |"I've got two boys and we teach them to be honest and to do what is right. I knew thi s was ateachable moment(教育时机)that I would never get back again. ” Patrick said to his wife. “ So I thought we would do something honest with it. It's been a great thing for us and our kids. ”56. Patrick decided to retur n the money to .A. his wifeB. the bankC. their sonsD. Mr. Williams57. Patrick found the box ________A. outside the small houseB. in his wife's roomC. in the hole of the wallD. among his tools58. Patrick thought there might be in the box whe n he found it. |A. 35,000 dollarsB. some pieces of wood |C. many famous picturesD. some expe nsive treasures59. Patrick and his wife returned the money at last because _A. they did n't n eed the money at allB. their childre n liked money very muchC. they wan ted to teach their childre n to be hon estD. the previous owner of the house asked them to do so60. Which is NOT TRUE accordi ng to the passage?A. Patrick n eeded money for car and house payme nt.B. Patrick dug a little hole to put things in.C. His wife agreed to retur n the money to the owner.D. To be hon est and to do what is right are great things for both adults and kids.CA recent report shows that in England 51%of married(已婚的)women go out to work. People wereasked what they thought of “ working wives ” . The answers are as follows:We asked readers to write and tell us their opinions . Here are some of the hundreds of letters we got.“ I ' m a woman photographer make plenty of money, travel a lot, and see a lot of people . I enjoy my work, and would n ' t have to stay at homield n ever marry a man who wan ted me to give up my work . ”Miss Brown"At present there are over 1,000,000 men who were out of work in Britain . If a woman gets a job, she puts one more man out of work . Perhaps that man has a wife and twelve children to support. Let women stay at home where they should stay. ”——Mr. Smith”I ' m the mother of twelve childrenWhen I go to work, my husband, looks after thechildren . He is good with children and enjoys staying at home with them . And I enjoy the job as a bus driver."------ Mrs. E.Boot61. In England _____________ .A. n early half of the married wome n stay at home.B. few women agree that married women should go out to work.C. few men think that it ' s women ' s work to stay at home and look after their children.D. many women don ' t know whethereiy should stay at home or go out to work.62. __________________ Miss Brow n is .A. poor but lives a happy lifeB.rich but doesn ' t love her husband.C.rich and likes her work very much.D.poor because she is out of work63. _________________________ Mr Smith thi nks that .A. husba nds should stay at home if their wives go to work.BB. women' s going out to work would make more men lose chances for work.C. wome n should have the same right as men in everyth ing.D. women should get the same pay as men for equal(平等)work.64. ____ think(s) that m arried women should go out to work while _____ d oesn ' t think so.A. Mrs. E. Boot and Mr Smith, Miss Brow nB. Miss Brown and Mr Smith, Mrs. E. BootC. Most wome n. Miss Brow n.D. Miss Brow n,Mr Smith65. Which one is RIGHT accordi ng to the report?A. There are ‘ working wives ' in English only.B. 20% wome n think that wome n should not go out to work.C. All the people in En gla nd have their own jobs.D. Over 1,000,000 men in En gla nd should not go out to work, because they have to look after theirchildre n.VI. 综合填空(共30小题,每小题1分,工30分)A.用所给词的适当形式填空,每词限用一次。

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