2021教育周报九年级上册期末考试(已审)
2020~2021学年度第一学期九年级(上)期末试卷(含答案)
九年级(上)期末试卷注意事项:1.本试卷共6页.全卷满分120分,考试时间为120分钟.考生答题全部答在答题卡上,答在本试卷上无效.2.请认真核对监考教师在答题卡所粘贴条形码上的姓名、考试证号是否与本人相符合,再将自己的姓名、准考证号用0.5毫米黑色墨水签字笔填写在答题卡及本试卷上.3.答选择题必须用2B 铅笔将答题卡上对应的答案标号涂黑.如需改动,请用橡皮擦干净后,再选涂其他答案.答非选择题必须用0.5毫米黑色墨水签字笔写在答题卡上的指定位置,在其他位置答题一律无效.4.作图必须用2B 铅笔作答,并请加黑加粗,描写清楚.一、选择题(本大题共有6小题,每小题2分,共12分.在每小题给出的四个选项中,恰有一项是符合题目要求的,请将正确选择项前的字母代号填涂在答题卡相应位置.......上) 1.方程x 2-x =0的解是 A .x 1=x 2=0 B .x 1=0,x 2=-1 C .x 1=x 2=1 D .x 1=0,x 2=1 2.一组数据:7,5,9,3,9,15,关于这组数据说法错误..的是 A .极差是12 B .众数是9 C .中位数是7 D .平均数是83.⊙O 的半径为5,点A 到圆心O 的距离为d ,已知点A 在⊙O 的外部,则 A .d <5 B .d >5 C .d ≥5 D .d =54.如图,在△ABC 中,点D 、E 分别在边AB 、AC 上,连接CD 、BE 交于点O ,且DE ∥BC ,OD =1,OC =3,AD =2,则AB 的长为A .3B .4C .6D .8(第4题) (第5题)5.如图所示,在4×4的网格中,A ,B ,C ,D ,O 均在格点上,则点O 是A .△ACD 的外心B .△ACD 的内心C .△ABC 的内心D .△ABC 的外心 62①图像的顶点坐标是(1,3) ②在x <1的范围内,y 随x 的增大而增大③b -a >0 ④4是方程ax 2+(b -2)x +c +11=0的一个根 其中所有正确结论的序号是A .①②B .②③C .②③④D .①②③④ACA BD EO二、填空题(本大题共10个小题,每小题2分,共20分.不需写出解答过程,请把正确答 案直接填写在答题卡相应位置上)7.已知x y =25,则x +y y= ▲ .8.如图,一块飞镖游戏板由除颜色外都相同的9个小正方形构成.假设飞镖击中每1块小正方形是等可能的(击中小正方形的边界或没有击中游戏板,则重投一次).任意投掷飞镖一次,击中黑色区域的概率是 ▲ .9.已知P 是线段AB 的黄金分割点,AP >PB ,AB =2,则AP = ▲ .10.如图,点G 是△ABC 的重心,连接AG 、BG 并延长分别交BC 、AC 于D 、E ,连接DE ,则S △CDES △ABC= ▲ .(第10题)11.若一个圆锥的侧面展开图是一个半径为6cm ,圆心角为120°的扇形,则该圆锥的侧面面积为 ▲ cm 2(结果保留π).12.如图,四边形ABCD 中,BC 、CD 、DA 均与以AB 为直径的半圆O 相切,切点分别为B 、E 、A .若BC =9 cm ,AD =3 cm ,则CD = ▲ cm .13.如图,圆桌正上方的灯泡O (看作一个点)发出的光线照射到桌面后,在地面上形成影.设桌面的半径AC =0.8 m ,桌面与地面的距离AB =1 m ,灯泡与桌面的距离OA =2 m ,则地面上形成的影的面积= ▲ m 2(结果保留π).14.某商场销售一批衬衫,平均每天可售出20件,每件盈利40元.为了扩大销售,增加盈利,商场采取了降价措施.假设在一定范围内,衬衫的单价每降1元,商场平均每天可多售出2件.如果降价后商场销售这批衬衫每天盈利1250元,那么衬衫的单价降了多少元?设衬衫的单价降了x 元,则可列方程为 ▲ . 15.对于实数m ,n ,我们用符号min {m ,n }表示m ,n 两数中较小的数,如min {1,2}=1,若min {x 2-1,2x 2}=2,则x = ▲ .16.如图, A 、B 是二次函数y =19x 2+bx 图像上的两点,直线AB 平行于x 轴,点A 的坐标为(-3,4).在直线AB 上任取一点P ,作点A 关于直线OP 的对称点C ,连接BC .则BC 的最小 值为 ▲ .(第12题) (第13题) (第16题)B A EG C三、解答题(本大题共11小题,共88分,请在答题卡指定区域内作答,解答时应写出文字 说明、证明过程或演算步骤) 17.(8分)解方程:(1)x 2-4x -2=0; (2)(x +1)2=x +1.18.(7分)已知关于x 的一元二次方程x 2+2x +k -1=0有两个不相等的实数根.19. (9分)如图,⊙O 的半径为4,点E 在⊙O 上,OE ⊥弦AB ,垂足为D , OD =2 3.(1) 求AB 的长; (2) 若点C 为⊙O 上一点(不与点A ,B 重合),直接写出∠ACB 的度数.(第19题) 20.(8分)“疫情未结束,防疫不放松”.为增强防疫意识,某校举行了疫情防护知识竞赛活动,现随机抽取该校甲、乙两班各10名同学的测试成绩进行整理、描述和分析,如下图所示:(1(221.(8分)在一个不透明的袋中装有4个小球,其中2个红球、1个白球和1个黑球,它们除颜色外完全相同.(1)从袋中任意摸出1个球,则摸到红球的概率是 ▲ ; (2)从袋中任意摸出2个球,求至少摸到1个红球的概率.乙甲 5 E22.(7分)如图,在Rt △ABC 中,∠B =90°,AB =6cm ,BC =8cm ,点P 从点A 出发,以1cm/s 的速度沿AB 运动;同时,点Q 从点B 出发,以2cm/s 的速度沿BC 运动.当点Q 到达点C 时,P 、Q 两点同时停止运动.设点P 、Q 运动时间为t (s) . (1)当t 为何值时,△PBQ 的面积为9?(2)当△PBQ 与△ABC 相似时,t 的值是多少?(第22题)23.(6分)如图,已知△ABC ∽△A'B'C',相似比为k ,点G 在BC 上.(1)若点G'在B'C'上,且BG B'G'=k ,求证:AGA'G'=k .(2)在B'C'上求作点G',使AGA'G'=k .作法一:作射线A'G',交边B'C'于G',使∠B'A'G'=∠BAG ,点G'即为所求;作法二:分别在AB 、AC 上截取AE =A'B',AF =A'C',连接EF 交AG 于D ;然后再在B'C'上截取B'G'=ED ,点G'即为所求;对于这两种作法,你认为 ▲ .A .作法一正确B .作法二正确C .两种作法都正确D .两种作法都不正确(第23题)24.(8分)如图,二次函数y =-x 2+2x +m (m 为常数)的图像经过点(2,3). (1)m = ▲ ;(2)结合图像直接写出-3≤x <4时y 的取值范围;(3)若A 、B 两点在该二次函数的图像上,且关于图像的对称轴对称,点A 的坐标为(n ,2),则点B 的坐标为 ▲(用含n 的代数式表示);(4)将该二次函数图像向下平移p 个单位长度后恰好与坐标轴有两个公共点,直接写出p 的值.(第24题)B A G B' C' G' A'25.(8分)如图,是一个由篱笆围成的一边靠墙的矩形养鸡场,这个养鸡场中间被篱笆隔成三个完全相同的矩形,所用篱笆总长为120 m .设垂直于墙的一边AB 长为x m .(1)若平行于墙的一边BC 的长y m ,写出y 与x 的函数表达式和自变量x 的取值范围; (2)设墙的最大可用长度为40 m ,求这个养鸡场的最大面积.(第25题)26.(9分)已知:如图,△ABC 中,AB=AC =5,BC =6,点O 在AB 上,以O 为圆心, OB 为半径画⊙O ,分别与边AB 、BC 相交于点D 、E ,EF ⊥AC , AH ⊥BC ,垂足分别为F 、H . (1)求证:EF 是⊙O 的切线; (2) ①设OB =2,求EC 的长;②设OB =t ,求FC 的长(用含t 的代数式表示).(第26题)27.(10分)【教材呈现】如图是苏科版九年级下册数学教材第92页的第17题.【解决问题】(1)记图1、图2中的正方形面积分别为S 1,S 2,则S 1 ▲ S 2.(填“>”、“<”或“=”). 【问题变式】若木板形状是锐角三角形A 1B 1C 1.某数学兴趣小组继续思考:按图3、图4、图5三种方式加工,分别记所得的正方形面积为S 3、S 4、S 5,哪一个正方形的面积最大呢?墙(2)若木板的面积S 仍为1.5 m 2. 小明:记图3中的正方形为“沿B 1C 1边的内接正方形”,图4中的正方形为“沿A 1C 1边的内接正方形”,依此类推.以图3为例,求“沿B 1C 1边的内接正方形DEFG ”的面积.设EF =x ,B 1C 1=a ,B 1C 1边上的高A 1H =h ,则S =12ah .由“相似三角形对应高的比等于相似比”易得x =2Sa +h;同理可得图4、图5中正方形边长,再比较大小即可.小红:若要内接正方形面积最大,则x 最大即可;小莉:同一块木板,面积相同,即S 为定值,本题中S =1.5,因此,只需要a +h 最小即可. 我们可以借鉴以前研究函数的经验,令y =a +h =a +2S a =a +3a(a >0).下面来探索函数y =a +3a (a >0)的图像和性质.②观察图像,发现该函数有最小值,此时a 的取值 ▲ ;A .等于2B .在1~32之间C .在32~53之间D .在53~2之间(3)若在△A 1B 1C 1中,A 1B 1=5,A1C 1=17,高A 1H =4.①结合你的发现,得到S 3、S 4、S 5的大小关系是 ▲(用“<”连接). ②小明不小心打翻了墨水瓶,已画出最大面积的内接正方形的△A 1B 1C 1原图遭到了污损,请用直尺和圆规帮他复原△A 1B 1C 1.(保留作图痕迹,不写作法)图5 B 1 A 1 C 1 图3 A 1 B 1 E F G H D C 1 C 1 A 1 B 1 图4 B九年级(上)期末数学试卷参考答案及评分标准二、填空题(本大题共10小题,每小题2分,共20分)7. 75 8.13 9. 5 -1 10.14 11.12π 12.12 13.1.44π 14.(20+2x ) (40-x )=1250 15.-3或 3 16.410 -5三、解答题(本大题共11小题,共88分) 17.(本题8分) 解:(1)x 2-4x -2=0,(法一) ∵a =1,b =-4,c =-2, b 2-4ac =(-4)2-4×1×(-2)=24>0,…………………………………………1分∴x =4±242=4±262=2±6,………………………………………………………3分∴x 1=2+6,x 2=2-6.……………………………………………………………4分 (法二)x 2-4x =2,(x -2)2=6………………………………………………………………………1分 x -2=±6………………………………………………………………………3分 ∴x 1=2+6,x 2=2-6.………………………………………………………4分 (2)(x +1)2-(x +1)=0(x +1)x =0……………………………………………………………………………6分 ∴ (x +1)=0或x =0.(x +1)=0或x =0∴ x 1=-1,x 2=0.……………………………………………………………………8分 18.(本题7分)解: (1)∵方程有两个不相等的实数根,∴b 2-4ac =22-4(k -1)>0,………………………………………………………2分 解得 k <2,∴k 的取值范围是k <2. ………………………………………………………………4分 (2)根据一元二次方程根与系数的关系,得x 1+x 2=-2, x 1x 2=k -1, …………………5分∵x 1+x 2-2x 1x 2=2∴-2-2(k -1)=2 …………………………………………………… 6分∴ k =-1∴k 的值是-1………………………………………………………………7分19.(本题9分) 解:(1)连接OA∵弦AB ⊥OE ,∴AD =BD =12AB ,∠ODA =90°……………………………………… 2分∴AD 2+OD 2=OA 2∴ AD 2=42-(23)2=4∴AD =2 ………………………………………………………………… 4分 ∴AB =4 ………………………………………………………………… 5分题号 1 2 3 4 5 6 答案 D C B C A C(2)∠BCA = 30°或150°……………………………………………9分 20.(本题8分)解:(1)中位数84.5,众数81………………………………………………………………4分 (2)答案不唯一,合理即可给分.如①因为甲班学生的方差低于乙班学生,所以甲班学生的成绩相对整齐; ②从众数(或中位数)来看,甲班成绩比乙班要高,所以甲班的成绩好于乙班;③甲班和乙班的平均成绩相同,说明他们的水平相当;……………………………………8分 21.(本题8分)解:(1)12;………………………………………………………………………………2分(2)把两个红球记为红1、红2,列出所有可能出现的结果如下:由表格可知,共有12种等可能的结果.其中“至少摸到1个红球”这一事件的发生有10种结果.……………………………………………………………………………………………6分∴P (至少摸到1个红球) = 10 12= 56.……………………………………………………… 8分22.(本题7分) 解:(1)由题意得,AP =t ,BQ =2t ,则PB =6-t . S △PBQ =12PB ·BQ=12 (6-t )·2t …………………………………………………………………………2分=-t 2+6t , 由题意得-t 2+6t =9,解得t 1=t 2=3…………………………………………………………………………………3分 所以运动时间t 为3s(2)若当△PBQ ∽△ABC 时,PB BQ =ABBC .6-t 2t =68,……………………………………………………………………………………4分 解得t =125;……………………………………………………………………………………5分当△PBQ ∽△CBA 时,PB BQ =BCAB.6-t 2t =86,……………………………………………………………………………………6分解得t =1811.……………………………………………………………………………………7分综上所述,当△PBQ 与△ABC 相似时, t 的值是125或1811 . 23.(本题6分)(1)∵△ABC ∽△A'B'C', ∴ABA'B'=k , ∵BGB'G'=k , ∴AB A'B'=BG B'G'……………………………………………………………………………………2分 在△ABG 和△A'B'G'中 ∵∠B =∠B',AB A'B'=BGB'G'∴△ABG ∽△A'B'G'…………………………………………………………………………3分 ∴AG A'G'=AB A'B'=k .……………………………………………………………………………4分 (2)C …………………………………………………………………………………………6分 24.(本题8分)(1)m =3……………………………………………………………………………………2分 (2)-12≤y ≤4 …………………………………………………………………………4分 (3) (2-n ,2)……………………………………………………………………6分 (4)解:3或4,………………………………………………………………………8分 25.(本题8分)解: (1)y =120-4x ………………………………………………………………1分自变量x 的取值范围是0<x <30……………3分 (2)设大矩形矩形养鸡场ABCD 的面积为S则S =x (120-4x )………………………………………………………4分 =-4x 2+120 x =-4(x -15)2+900 ∵a =-4<0,图像开口向下, ∴S 有最大值 ∵0<x <30∴当x =15时,S 的最大值为900.……… …………………………… ……5分 又∵墙的最大可用长度为40米, ∴120-4x ≤40,解得x ≥20.∴20≤x <30………………………………………………………………………6分 ∵在x >15的范围内,S 随x 的增大而减小.…………………………………7分 而15<20≤x <30∴x =20时,S 取得最大值,此时S =800.……………………………………8分即这个养鸡场的最大面积为800 m 2.26.(本题9分)(1) 证明:如图1,连结OE ,则OE =OB ,∠B =∠OEB .∵AB =AC ,∴∠B =∠C ,∴∠OEB =∠C ,∴OE ∥AC .………………………………………1分 ∴∠OEF =∠EFC∵EF ⊥AC 于F ,∴∠EFC =90︒, ∴∠OEF =90︒,∴EF ⊥OE .………………………………………………………………………2分 ∵点E 在⊙O 上,∴EF 是⊙O 的切线.……………………………………………………………3分 (2)① 如图2,连结OE ∵OE ∥AC , ∴△BOE ∽△BAC .∴ BE BC = OE AC ,即 BE 6 = 25 , ∴BE = 12 5.∴EC =6- 12 5 = 185 …………………………………………………………………5分②∵AB =AC ,∴BH = 12BC .∵BC =6,∴BH =3.……………………………………………………………………6分 由①知: BE BC = OE AC ,即 BE 6 = t5 ,∴BE = 6t5.∴EC =6- 6t5 .…………………………………………………………………7分∵AH ⊥BC 于H ,EF ⊥AC 于F ∴∠AHB =∠EFC =90︒ ∵∠OBE =∠C ∴△ABH ~△EFC11∴ AB EC = BH CF∴ 5 6- 6t 5 = 3 CF ∴FC = 18 5 - 18t 25,…………………………………………………………………9分(图1)(图2)27.(本题10分)(1)>………………………………………………………………………………………2分(2)14分(图1')(图2')○2D ……………………………………………………………………………………6分 (3) ○1 S 5<S 4<S 3…………………………………………………………………………8分○2如图2'………………………………………………………………………………10分A 1B 1C 1D 1E 1 H 112(或如下图2') (或如下图2')A 1B 1C 1D 1E 1 H 1F 1A 1B 1C 1D 1E 1F 1。
九年级上学期期末试题 试题_2(共12页)
2021—2021学年度(niándù)第一学期期末考试试卷九年级语文教师寄语:交上满意如意卷,不负囊萤映雪功!卷面分 5分一、积累与运用〔38分〕1.根据拼音写出汉字或者根据汉字注音〔5分〕倔.强 ( ) 石埠.( ) 荫庇.( ) 嫉.妒( ) 案牍. ( ) 婆suō ( ) 秀qí ( ) 陷jǐng( ) shěn然( ) yìyì发光( ) 5个错别字,先用横线标出,然后改正〔5分〕破釜沉舟再接再励郑重其事惊世亥俗残垣瓦砾集思广义刚愎自用鬼斧神功咫尺天涯如火如荼坦荡如地一文不名改改改改改3.以下作家、作品及文中名句搭配不当的一项是哪一项〔〕〔2分〕A.?白杨礼赞?——茅盾——“白杨树实在不是平凡的,我赞美白杨树!〞B.?三棵树?——苏童——“树让我迷惑,我的树到底在哪里?〞C.?那树?——王鼎钧——“她,一柄绿光闪闪的长剑……〞D.?悬岩边的树?——曾卓——“它似乎即将倾跌进深谷里〞4.以下句子中,加点的传统礼貌用语使用不恰当的一句是〔〕〔2分〕寒舍..(h ..á.n sh ...ě.).,我深感荣幸。
贵校..师生给我的热情款待。
C. 回到老家,必须代我问候双亲大人....。
D. 请留步,足下..就此辞别。
5.以下句中加点词语使用恰当的一项是哪一项〔 〕〔2分〕 A .你们打篮球的程度实在高,我们甘拜下风....。
B .放暑假了,李明参加了旅行社组织的“三日游〞活动,他那被晒黑的饱经风霜....的脸,让人联想起亚热带的阳光。
C .对犯错误的同学,我们应真诚地帮助他,不能讳疾忌医....。
D .我们就是要虚张声势....,把全班同学的学习热情鼓起来。
6.以下各句中没有语病、句意明确的一项是哪一项〔 〕〔2分〕 A .著名京剧表演艺术家梅兰芳先生的祖籍是人。
B .实在减轻中小学生过重的学习负担,是施行素质教育的关键。
九年级上学期期末试卷 试题(共17页)
阜宁2021-2021学年(xuénián)九年级〔上〕语文期末试卷一、积累与运用〔一共30分〕1.根据注音将汉字写在下面方格内,要求书写工整、标准、美观。
(4分)晨雾轻笼,塘河假设一根标致的裙带,松松地皱〔xié〕着,划一道柔和的曲线,殇然远去。
远方的新世纪大桥在袅袅雾气中渐渐显出峭拔的身姿,备极崇丽。
玲珑〔 tī〕透、造型各异的街灯把它五彩的光轻轻泻进塘河,河水欢唱,汽笛声声,垂柳依依。
置身于大塘河 (pàn),你会感到一份久违的宁静踏实,愉快的心情涨得满满的,〔qiè〕意极了!2.以下标点符号使用有错误的一项是哪一项〔〕〔2分〕A.再美,谁知道曾经洒过多少劳动人民斑斑点点的血泪。
B.什么叫成功?顺手拿过来一本?现代汉语词典?,上面写道:“成功,获得预期的结果。
〞C.得意的,我将什么来比较你呢?我怎么比较得出呢?D.韩文公的“焚膏油以继晷,恒兀兀以穷年,〞更为读书人所向往。
3.以下句子没有语病,句意明确的一项是哪一项〔〕〔2分〕A.毒黄瓜、瘦肉精、塑化剂……种种食品平安问题如雨后春笋般出如今公众面前,令人惴惴不安。
B.环境保护部已全面启动全国辐射环境监测网络,并要求级环保部门加强预报和监测。
C.在阅读文学名著过程中,常常可以使我们明白许多做人的道理,悟出世间人生(rénshēng)的真谛。
D.随着“天宫一号〞飞行器的发射升空,中国向空间站时代迈出了坚实的一步。
4.默写〔最后一题2分,其余每一小题1分,一共8分〕①衣带渐宽终不悔,。
②,在河之洲。
③粉身碎骨浑不怕,。
④,志在千里。
⑤登斯楼也,那么有去国怀乡,,,。
⑥,,国恒亡。
⑦曹刿认为战前必须取信于民的句子:,,。
5.名著阅读〔6分〕“我走进了另一间屋子,但是马上就要退出来,差点被一种可怕的臭气熏倒。
我的向导催促我走进去,悄悄地告诉我:不要得罪他们,他们会恨你入骨,因此吓得我连鼻子都不敢堵。
2021广东教育周报九年级上Module7测试题(已审)
2020—2021学年第一学期Module 7 检测题二、语法选择(本大题有10小题,每小题1分,共10分)在每小题所给的四个选项中,选出可以填入空白处的最佳答案,并将答题卡上对应题目所选的选项涂黑。
Hello , everyone. I am Betty. Today I want 31 an Internet group to discuss great books written 32 great writers.Well, in my opinion, my favorite writers are Confucius and Shakespeare.I accept that they’re great because their works 33 still read by many people today. But I think I’d describe Confucius 34 as a teacher and thinker than a writer. He was a very wise man. We’re still 35 by Confucius’s ideas, and Shakespeare’s plays also make a lot of sense to 36 today. People have always read, and will always read great books.By 37 way, what do you think of Mark Twain, the great American writer in the nineteenth century?His books are still popular, and one of his books is my favourite, The Adventures of Tom Sawyer. The story is 38 in the town of St Petersburg, Missouri, the US, in the nineteenth century. It tells some 39 stories about a boy who has many adventures.He was important, but I suppose he isn’t 40 well-known as Confucius or Shakespeare.31.A. join B. to join C. join in D. to join in32. A. by B. on C. to D. from33. A. is B. were C. are D. am34. A. much B. many C. most D. more35. A. influence B. influenced C. influences D. influential36. A. us B. we C. ours D. ourselves37. A. the B. a C. an D. /38. A. set B. setting C. sets D. setted39. A. excited B. excite C. exciting D. excitement40. A. such B. very C. too D. as31-35BACDB 36-40AAACD三、完形填空(本大题有10小题,每小题1分,共10分)通读下面短文,掌握其大意,然后在每小题所给的四个选项中,选出一个最佳答案,并将答题卡对应题目所选的选项涂黑。
2021年九年级英语上学期期末试卷及答案
学习犹如农民耕作,汗水滋润了种子,汗水浇灌了幼苗,没有人瞬间奉送给你一个丰收。
下面是课件为您推荐九年级英语上学期期末试卷及答案。
表达九年级英语上学期期末试卷第Ⅰ卷(共75分)I、情景反应{每小题1分;共5分)本题共5个小题,每小题你将听到一组对话.请你从每小题所给的A、B、C 三幅图片中,选出与你所听到的信息相关联的一项,并在答题卡上将该项涂黑.Ⅱ、对话理解(每小题1分;共5分)本题共5个小题,每小题你将听到一组对话和一个问题.请你从每小题所给的A,B、C三个选项中,选出一个最佳选项,并在答题卡上将该项涂黑.A. To join an English club.B. To do more reading.C. To watch more English movies.A. At 2:00 p.m.B. At 5:00 p.m.C. At 7:00 p.m.A. She was short.B. She had short hair.C. She had long hair.A.Disappointing(令人失望的).B.Moving.C. Scary.10.A. He is making dinner. B. He is eating noodles.C. He is talking on the phone loudly.Ⅲ、语篇理解(每小题1分;共5分)本题你将听到一篇短文.请你根据短文内容和所提出的5个问题,从每小题所给的A、B、C三个选项中.选出一个最佳选项,并在答题卡将该项涂黑.1 How long has Mrs. Lee taught in the middle schoolA. For forty-eight years.B. For twenty years.C. For twenty-five years.1 What is Mrs. Lee proud ofA. She has rich teaching experience.B. She is a famous teacher.C. Her students often write to her.1 What does Mrs. Lee tell her new studentsA. To study hard.B. Not to tell a lie.C. Not lo be late for class.1 Why did Mrs. Lee tell her students to finish Exercise 6 on 8A. Because they didn't get good grades in the exam.B. Because she wanted to know if they were honest.C. Because it was easy for them to do the exercise.1 How did the students feel after knowing the truthA. Sorry.B.Angry.C.Excited.Ⅳ、听力填空(每小题1分;共5分)本题你将听到一篇短文。
2021-2022教育周报九年级上册M4(已审)
九年级上册M4二、语法选择(本大题有10小题,每小题1分,共10分)在每小题所给的四个选项中,选出可以填入空白处的最佳答案,并将答题卡上对应的选项涂黑One Sunday afternoon, my parents had to go away 31 business, so my younger brother and I were left 32 at home. I was doing my homework while my younger brother was watching TV. Suddenly, the doorbell 33 . My brother thought it might be our parents, so he opened the door quickly.A tall man stood outside and asked politely 34 our parents were at home.Without thinking, my brother said, “No.” When I wanted to close the door, he suddenly closed the door very hard and entered our house. He took out 35 knife and ordered me to tie(绑) up my brother’s hands with a rope(绳子). I tied up his hands in a special way 36 that my brother could untie (松开)himself easily. The man then tied my hands up and locked 37 of us in the kitchen.Soon, he went upstairs. I taught my brother to untie his rope with his hands. He then untied himself. I rushed to the telephone to call the police, but the line was cut off. The door was locked from outside. It was lucky that the man forgot 38 the kitchen window. We got out of the house through the window and went to the nearest pay phone to call the police.Soon the police came and the man was caught. At that time, my parents reached home. We told them the whole story. My parents were glad that we were not hurt. They told me that I should stop my brother from 39 the door to strangers. From then on, I learned a lesson on safety. 40 we were not hurt, we must be more careful next time!( )31. A. in B. on C. from D. across( )32. A. alone B. lonely C. along D. loneliness( )33.A. has rung B. will ring C. rang D. rings( )34.A. that B. how C. whether D. why( )35. A. a B. an C. the D. /( )36. A. enough B. very C. such D. so( )37. A. all B. both C. either D. neither( )38. A. locking B. lock C. locked D. to lock( )39. A. opens B. opened C. opening D. open( )40. A. If B. Until C. Although D. But31-35 BACCA 36-40 DBDCC三、完形填空(本大题有10小题,每小题1分,共10分)通读下面短文,掌握其大意,然后在每小题所给的四个选项中,选出一个最佳答案,并将答题卡上对应的选项涂黑。
语文版度九年级语文上册期末综合检测试题及答案
语文版度九年级语文上册期末综合检测试题及答案内容预览:2021-2021学年度九年级上册语文综合测试题〔总分值:120分,时间:120分钟〕Hi,同窗,展现自己的时分到啦,当你走进考场,你就是这里的主人。
只需心境安静,只需细心、仔细地阅读、思索,你就会感到试题并不难。
一切都在你的掌握之中,请置信自己。
你可一定要冷静思索、冷静答卷啊!祝你成功!教员真诚提示你:1.请你务必在指定的位置填写好班级、姓名、考号。
2. 请你务必严厉遵守考试纪律。
3. 请你务必书写仔细、工整、规范,卷面洁净、整洁、美观。
一、本大题6小题,共12分。
答题提示:第工卷的1-4题读一遍,答案填涂在答题卡的相应题号上;5-6题读两遍,答案写在答题卷的相应位置上。
考生可以边听边答题,录音只播放一次。
1、听读词语,读音不正确的一项为哪一项( )(2分) A.废墟迤逦韬光隐晦 B.吞噬风骚孤陋寡闻C.隔膜停滞举止恬然 D.挑选稚嫩顶礼膜拜2、听读诗句,停顿不正确的一项为哪一项( )(2分) A.单车欲问边,属果过居延。
B.烟笼寒水月笼沙,夜泊秦淮近酒家。
C.明月几时有?把酒问青天。
D.郁孤台下清江水,中间多少行人泪。
听读一那么旧事,回答3-4题。
3、依据旧事内容,下面不契合报道的一项为哪一项( )(2分) A.列席广州2021年亚运会倒计时两周年启动仪式地有广东省省长黄华华,国度××局副局善于再清,亚奥理事会副主席霍震霆等人。
B.启动仪式上,45个亚洲国度和地域的文明符号在大舞台的大屏幕上有节拍地变幻交织。
C.启动仪式现场有4000名观众在读秒,见证亚运倒计时牌正式启动。
D.启动仪式的主题歌是«广州之约»,由郭峰演唱,参与文艺扮演的歌手还有满文军、孙悦等,这些歌手为市民献上动感十足的亚运歌曲。
4、以下对启动仪式内容剖析错误的一项为哪一项( )(2分:A.拉开启动仪式序幕是在早晨8时,的第一通鼓叫〝开运鼓〞,称号是«鼓舞亚洲»。
2021教育周报九年级上册期末考试(已审)
初三上册期末考试测试题二、语法选择(本大题有10小题,每小题1分,共10分)“I’ m going shopping in the village,” George’s mother said to George on Saturday morning. “So be a good boy and don’t get into trouble. And don’t forget 31 good care of Grandma. ”Then she went out.Grandma 32 in the chair by the window when she opened one little eye and said, “Now you heard 33 your mother said, “George.”“Yes, Grandma,” George said.George was bored to tears. He didn’t have a brother or a sister. His father was a farmer, and 34 farm that they lived on was miles away from anywhere, 35 there were never any children to play with him. He was tired of looking at 36 pigs, hens, cows and sheep. He was especially tired of having to live in the house with his grandma. Looking after her all by himself was hardly 37 way to spend a Saturday morning.“Go and make me a cup of tea for a start, 38 sugar and milk.” Grandma said. Most grandmothers are lovely, kind, helpful old ladies, but not this one. George’s grandma was a woman 39 was always complaining(埋怨) about something or others. She spent all day sitting on her chair by the window. George was told that Grandma used to be a gentle lady, but as she grew older, she was not able to look after herself. What was worse, she was easy to get angry.“We should be nice to the old, George.” His mother always told him. Thinking of this, George went into the kitchen and made Grandma a cup of tea with a tea bag. He put one spoon of sugar and some milk in it. He stirred the tea well and carried it into the living room 40 .()31. A. take B. taking C. to take D. takes()32. A. sleep B. sleeps C. is sleeping D. was sleeping ( )33. A. that B. what C. where D. which()34. A. a B. an C. the D. /( )35. A. but B. if C. or D. so()36. A. hundred B. hundreds C. hundredth D. hundreds of( )37. A. exciting B. the most exciting C. more excited D. much exciting ()38. A. in B. with C. of D. for()39. A. who B. which C. where D. when()40. A. care B. careful C. carefully D. careless31-35 CDBCD 36-40DBBAC三、完形填空(本大题有10小题,每小题1分,共10分)通读下面短文,掌握其大意,然后在每小题所给的四个选项中,选出一个最佳答案,并将答题卡上对应的选项涂黑。
人教版2021年九年级数学上册期末考试卷及答案【全面】
人教版2021年九年级数学上册期末考试卷及答案【全面】 班级: 姓名:一、选择题(本大题共10小题,每题3分,共30分)1.﹣3的绝对值是( )A .﹣3B .3C .-13D .132.已知一个布袋里装有2个红球,3个白球和a 个黄球,这些球除颜色外其余都相同.若从该布袋里任意摸出1个球,是红球的概率为13,则a 等于( )A .1B .2C .3D .43.下列说法正确的是( )A .一个数的绝对值一定比0大B .一个数的相反数一定比它本身小C .绝对值等于它本身的数一定是正数D .最小的正整数是14.如图,数轴上的点A ,B ,O ,C ,D 分别表示数-2,-1,0,1,2,则表示数25-的点P 应落在( )A .线段AB 上 B .线段BO 上C .线段OC 上D .线段CD 上5.若点1(),6A x -,2(),2B x -,32(),C x 在反比例函数12y x =的图像上,则1x ,2x ,3x 的大小关系是( )A .123x x x <<B .213x x x <<C .231x x x <<D .321x x x <<6.已知:等腰直角三角形ABC 的腰长为4,点M 在斜边AB 上,点P 为该平面内一动点,且满足PC =2,则PM 的最小值为( )A .2B .2 2C .2D .27.下面四个手机应用图标中是轴对称图形的是( )A.B.C.D.8.如图,直线a∥b,将一个直角三角尺按如图所示的位置摆放,若∠1=58°,则∠2的度数为()A.30°B.32°C.42°D.58°9.如图,将△ABC绕点C顺时针旋转90°得到△EDC.若点A,D,E在同一条直线上,∠ACB=20°,则∠ADC的度数是()A.55°B.60°C.65°D.70°10.如图,DE∥FG∥BC,若DB=4FB,则EG与GC的关系是()A.EG=4GC B.EG=3GC C.EG=52GC D.EG=2GC二、填空题(本大题共6小题,每小题3分,共18分)13816-=_____.2.因式分解:3269a a a-+=_________.3.若n边形的内角和是它的外角和的2倍,则n=__________.4.如图,一次函数y=﹣x﹣2与y=2x+m的图象相交于点P(n,﹣4),则关于x 的不等式组22{20x m x x +----<<的解集为__________.5.如图,直线y =x +2与直线y =ax +c 相交于点P (m ,3),则关于x 的不等式x +2≤ax +c 的解为__________.6.如图,点A 是反比例函数y=4x(x >0)图象上一点,直线y=kx+b 过点A 并且与两坐标轴分别交于点B ,C ,过点A 作AD ⊥x 轴,垂足为D ,连接DC ,若△BOC 的面积是4,则△DOC 的面积是__________.三、解答题(本大题共6小题,共72分)1.解分式方程:3211x x x +=--2.先化简,再求值:2(3)(1)(1)2(24)a a a a +-+--+,其中12a =-.3.已知A (﹣4,2)、B (n ,﹣4)两点是一次函数y=kx+b 和反比例函数y=m x图象的两个交点. (1)求一次函数和反比例函数的解析式;(2)求△AOB 的面积;(3)观察图象,直接写出不等式kx+b﹣mx>0的解集.4.在正方形ABCD中,对角线BD所在的直线上有两点E、F满足BE=DF,连接AE、AF、CE、CF,如图所示.(1)求证:△ABE≌△ADF;(2)试判断四边形AECF的形状,并说明理由.5.随着科技的进步和网络资源的丰富,在线学习已成为更多人的自主学习选择.某校计划为学生提供以下四类在线学习方式:在线阅读、在线听课、在线答题和在线讨论.为了解学生需求,该校随机对本校部分学生进行了“你对哪类在线学习方式最感兴趣”的调查,并根据调查结果绘制成如下两幅不完整的统计图.根据图中信息,解答下列问题:(1)求本次调查的学生总人数,并补全条形统计图;(2)求扇形统计图中“在线讨论”对应的扇形圆心角的度数;(3)该校共有学生2100人,请你估计该校对在线阅读最感兴趣的学生人数.6.某学校为了改善办学条件,计划购置一批电子白板和台式电脑.经招投标,购买一台电子白板比购买2台台式电脑多3000元,购买2台电子白板和3台台式电脑共需2.7万元.(1)求购买一台电子白板和一台台式电脑各需多少元?(2)根据该校实际情况,购买电子白板和台式电脑的总台数为24,并且台式电脑的台数不超过电子白板台数的3倍.问怎样购买最省钱?参考答案一、选择题(本大题共10小题,每题3分,共30分)1、B2、A3、D4、B5、B6、B7、D8、B9、C10、B二、填空题(本大题共6小题,每小题3分,共18分)1、22、2(3)a a -3、64、﹣2<x <25、x ≤1.6、2.三、解答题(本大题共6小题,共72分)1、1x =-2、13、(1)反比例函数解析式为y=﹣8x,一次函数的解析式为y=﹣x ﹣2;(2)6;(3)x <﹣4或0<x <2.4、(1)略(2)菱形5、(1)90人,补全条形统计图见解析;.(2)48︒;(3)560人.6、(1)购买一台电子白板需9000元,一台台式电脑需3000元;(2)购买电子白板6台,台式电脑18台最省钱.。
2021年冀教版九年级数学上册期末考试题及答案【审定版】
2021年冀教版九年级数学上册期末考试题及答案【审定版】班级: 姓名:一、选择题(本大题共10小题,每题3分,共30分)1.函数y =x 的取值范围是( )A .1x >B .1x <C .1x ≤D .1≥x2.已知一个布袋里装有2个红球,3个白球和a 个黄球,这些球除颜色外其余都相同.若从该布袋里任意摸出1个球,是红球的概率为13,则a 等于( )A .1B .2C .3D .43.下列结论成立的是( )A .若|a|=a ,则a >0B .若|a|=|b|,则a =±bC .若|a|>a ,则a ≤0D .若|a|>|b|,则a >b .4.2018年10月24日港珠澳大桥全线通车,港珠澳大桥东起香港国际机场附近的香港口岸人工岛,向西横跨伶仃洋海域后连接珠海和澳门人工岛,止于珠海洪湾,它是世界上最长的跨海大桥,被称为“新世界七大奇迹之一”,港珠澳大桥总长度55000米,则数据55000用科学记数法表示为( )A .55×105B .5.5×104C .0.55×105D .5.5×1055.已知平行四边形ABCD ,AC 、BD 是它的两条对角线,那么下列条件中,能判断这个平行四边形为矩形的是( )A .∠BAC=∠DCAB .∠BAC=∠DAC C .∠BAC=∠ABD D .∠BAC=∠ADB6.若关于x 的函数||(1)5m y m x =--是一次函数,则m 的值为( )A .±1B .1-C .1D .27.已知直线a ∥b ,将一块含45°角的直角三角板(∠C=90°)按如图所示的位置摆放,若∠1=55°,则∠2的度数为( )A.80°B.70°C.85°D.75°8.如图,A、B、C是小正方形的顶点,且每个小正方形的边长为1,则tan∠BAC的值为()A.12B.1 C.33D.39.如图,在△ABC和△DEC中,已知AB=DE,还需添加两个条件才能使△ABC≌△DEC,不能添加的一组条件是()A.BC=EC,∠B=∠E B.BC=EC,AC=DCC.BC=DC,∠A=∠D D.∠B=∠E,∠A=∠D10.如图,能判定EB∥AC的条件是()A.∠C=∠1 B.∠A=∠2C.∠C=∠3 D.∠A=∠1二、填空题(本大题共6小题,每小题3分,共18分)1.化简:9=__________.2.因式分解:a 3-a =_____________.3.若代数式32x x +-有意义,则实数x 的取值范围是__________. 4.如图,在△ABC 中,AC =8,BC =5,AB 的垂直平分线DE 交AB 于点D ,交边AC 于点E ,则△BCE 的周长为__________. 5.如图,菱形ABCD 的对角线AC,BD 相交于点O ,过点A 作AH ⊥BC 于点H ,连接OH.若OB=4,S 菱形ABCD =24,则OH 的长为___________. 6.现有下列长度的五根木棒:3,5,8,10,13,从中任取三根,可以组成三角形的概率为________.三、解答题(本大题共6小题,共72分)1.(1)计算:()2017132-⎛⎫--︒ ⎪⎝⎭ (2)解方程:214111x x x++=--2.已知a 、b 、c 满足2225(32)0a b c ---= (1)求a 、b 、c 的值.(2)试问:以a 、b 、c 为三边长能否构成三角形,如果能,请求出这个三角形的周长,如不能构成三角形,请说明理由.3.如图,在平行四边形ABCD 中,过点A 作AE ⊥BC ,垂足为E ,连接DE ,F 为线段DE上一点,且∠AFE=∠B(1)求证:△ADF∽△DEC;(2)若AB=8,AD=63,AF=43,求AE的长.4.如图,在Rt△ABC中,∠ACB=90°,过点C的直线MN∥AB,D为AB边上一点,过点D作DE⊥BC,交直线MN于E,垂足为F,连接CD、BE.(1)求证:CE=AD;(2)当D在AB中点时,四边形BECD是什么特殊四边形?说明你的理由;(3)若D为AB中点,则当∠A的大小满足什么条件时,四边形BECD是正方形?请说明你的理由.5.为了了解居民的环保意识,社区工作人员在光明小区随机抽取了若干名居民开展主题为“打赢蓝天保卫战”的环保知识有奖问答活动,并用得到的数据绘制了如图条形统计图:请根据图中信息,解答下列问题:(1)本次调查一共抽取了名居民;(2)求本次调查获取的样本数据的平均数、众数和中位数;(3)社区决定对该小区500名居民开展这项有奖问答活动,得10分者设为“一等奖”,请你根据调查结果,帮社区工作人员估计需准备多少份“一等奖”奖品.6.山西特产专卖店销售核桃,其进价为每千克40元,按每千克60元出售,平均每天可售出100千克,后来经过市场调查发现,单价每降低2元,则平均每天的销售可增加20千克,若该专卖店销售这种核桃要想平均每天获利2240元,请回答:(1)每千克核桃应降价多少元?(2)在平均每天获利不变的情况下,为尽可能让利于顾客,赢得市场,该店应按原售价的几折出售?参考答案一、选择题(本大题共10小题,每题3分,共30分)1、D2、A3、B4、B5、C6、B7、A8、B9、C10、D二、填空题(本大题共6小题,每小题3分,共18分)1、32、a(a-1)(a + 1)3、x≥-3且x≠24、135、36、2 5三、解答题(本大题共6小题,共72分)1、(1)﹣2;(2)无解.2、(1)a=b=5,c=2)能;3、(1)略(2)64、(1)略;(2)四边形BECD是菱形,理由略;(3)当∠A=45°时,四边形BECD是正方形,理由略5、(1)50;(2)平均数是8.26;众数为8;中位数为8;(3)需要一等奖奖品100份.6、(1)4元或6元;(2)九折.。
2022-2023教育周报九上期末考试(已终审)
2022-2023 九年级上册期末测试题二、语法选择(本大题有10小题, 每小题1分, 共10分)在每小题所给的四个选项中, 选出可以填入空白处的最佳答案, 并将答题卡上对应的选项涂黑。
Early in the morning, at noon, or in the evening in big cities and in the countryside, all over the United States, you can see Americans running — men and women, young and old. People run everywhere— along the beaches of California, through Central Park in New York, down the 1 streets in small towns or at the gym. Some people even run in 2 living rooms.Running 3 not so popular in the past. In 4 1960s, runners were mostly athletes(运动员) and healthy strong people. When people saw a runner, they used 5 , “Hey, what's the hurry for?”or they might say to themselves, “Is he crazy?”At that time, women almost never ran. If they did, they might 6 at. But today all these have changed. Men and women 7 all ages enjoy running.Doctors say many of the health 8 in the United States come from these bad habits: eating too much, smoking cigarettes, and taking 9 exercise. Doctors tell us, “Eat less, don't smoke, and exercise more.” Running is a good exercise 10 helps build strong hearts and lungs(肺). It also helps most people lose weight.( )1. A. quietly B. quieter C. quiet( )2. A. their B. them C. they( )3. A. is B. was C. were( )4. A. a B. the C. /( )5. A. ask B. asking C. to ask( )6. A. laughed B. is laughed C. be laughed( )7. A. in B. of C. with( )8. A. problem B. problems C. problem’s( )9. A. little B. few C. a few( )10. A. where B. who C. that1-5 CABBC 6-10 CBBAC三、完形填空(本大题有10小题, 每小题1分, 共10分)通读下面短文, 掌握其大意, 然后在每小题所给的四个选项中, 选出一个最佳答案, 并将答题卡对应题目所选的选项涂黑。
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初三上册期末考试测试题二、语法选择(本大题有10小题,每小题1分,共10分)“I’ m going shopping in the village,” George’s mother said to George on Saturday morning. “So be a good boy and don’t get into trouble. And don’t forget 31 good care of Grandma. ”Then she went out.Grandma 32 in the chair by the window when she opened one little eye and said, “Now you heard 33 your mother said, “George.”“Yes, Grandma,” George said.George was bored to tears. He didn’t have a brother or a sister. His father was a farmer, and 34 farm that they lived on was miles away from anywhere, 35 there were never any children to play with him. He was tired of looking at 36 pigs, hens, cows and sheep. He was especially tired of having to live in the house with his grandma. Looking after her all by himself was hardly 37 way to spend a Saturday morning.“Go and make me a cup of tea for a start, 38 sugar and milk.” Grandma said. Most grandmothers are lovely, kind, helpful old ladies, but not this one. George’s grandma was a woman 39 was always complaining(埋怨) about something or others. She spent all day sitting on her chair by the window. George was told that Grandma used to be a gentle lady, but as she grew older, she was not able to look after herself. What was worse, she was easy to get angry.“We should be nice to the old, George.” His mother always told him. Thinking of this, George went into the kitchen and made Grandma a cup of tea with a tea bag. He put one spoon of sugar and some milk in it. He stirred the tea well and carried it into the living room 40 .()31. A. take B. taking C. to take D. takes()32. A. sleep B. sleeps C. is sleeping D. was sleeping ( )33. A. that B. what C. where D. which()34. A. a B. an C. the D. /( )35. A. but B. if C. or D. so()36. A. hundred B. hundreds C. hundredth D. hundreds of( )37. A. exciting B. the most exciting C. more excited D. much exciting ()38. A. in B. with C. of D. for()39. A. who B. which C. where D. when()40. A. care B. careful C. carefully D. careless31-35 CDBCD 36-40DBBAC三、完形填空(本大题有10小题,每小题1分,共10分)通读下面短文,掌握其大意,然后在每小题所给的四个选项中,选出一个最佳答案,并将答题卡上对应的选项涂黑。
It was my daughter’s first day of school. I knew that she would be crying in a few minutes, because she always did that when she was worried about the new 41 .On the way to school I told her repeatedly how 42 her new school life would be andexpected she would feel relaxed. However, when she 43 the large group ofstudents everywhere, her face at once fell and the tears came to her eyes.“You can dothis, sweetie. Everyone has a place in line; let’s go to find yours.”We lined up to 44 the school. Just as she was about to hold on to my leg, herfriend from preschool(学前班) stood next to her. Suddenly, she became active and45 for her friend’s hand. And as the teacher began to walk them all into the school,she wasn’t crying, but 46 .To tell the truth, 1 was unwilling to say goodbye when I saw those little feetwalk into that big building. I hid the 47 behind my sunglasses and waved myhand as she walked inside.All day I 48 what she was doing. As I waited to pick her up, I felt like achild standing in line to meet Santa Claus. “1 didn't cry again, Mommy.”she said49 , showing me her backpack full of candies.During two hours of listening to the details(细节) of her day, we laughed and50 all the experiences she had on the first school day. I knew my daughter hadgrown up.()41. A.restaurant B. hall C. environment D. kitchen()42. A. amazing B. peaceful C. awful D. terrible()43. A. heard B. saw C. touched D. listened()44. A. enter B. suppose C. list D. stand()45. A. broke out B. took out C. put out D. reached out()46 .A. smiling B. climbing C. rushing D. pushing()47. A. matter B. anger C. tears D. service()48. A. suggested B. asked C. knew D. wondered()49. A. shyly B. excitedly C. politely D. seriously()50. A. talked about B. worried about C. talked to D. talked with41-45CABAD 46-50ACDBA四、阅读理解(本大题有15小题,每小题2分,共30分)阅读A、B两篇短文,从每小题所给的四个选项中,选出能回答所提问题或完成所给句子的最佳答案,并将答题卡上对应的选项涂黑。
◆GONE WITH THE WINDAuthor: Margaret Mitchell¥ 25(in bookstores)¥ 18(online)Gone With the Wind is a best seller(畅销书), which tells a story thathappened in the American Civil War(美国内战). Scarlett O’Hara is awoman in the story who is full of energy. She is strong and saves her familybut is very selfish(自私)at the same time.◆A LITTLE PRINCESSAuthor: Frances Hodgson Burnett¥18.3 (online)Motherless Sara Crewe was sent home from India to school at MissMinchin’s. Her father was very rich and she lived a rich and comfortable life.Then her father died and Sara lost everything. She had to learn to do with herchanged life. Her strong character made her able to fight successfully againsther poverty (贫困) and the scom(嘲笑)of her fellows(伙伴). It’s anexcellent book with 4 tapes(磁带) for children.◆PETER PANAuthor: J.M. Barrie¥ 15(in bookstores)¥ 12(online)It is a children’s story full of imagination(想象力) and adventures, which isabout Wendy, John and Michael Darling’s adventures in Never-Never Landwith Peter Pan, the boy who would not grow up. The children are happy andlovely. (with 2 tapes)◆UNCLE TOM’S CABINAuthor: Harriet Beecher Stowe¥ 20(in bookstores)The most famous novel in American history, Uncle Tom’s Cabin, talked aboutthe struggle between the free states and slave(奴隶) states during the AmericanCivil War and is as powerful today as when it first came out 150 years ago.◆THE SECRET GARDENAuthor: Frances Hodgson Burnett¥ 35(in bookstores)¥ 30(online)Mary Lennox, a sickly orphan(孤儿), finds herself in her uncle’s dark house. Why are so many rooms locked? Why is one of the gardens locked?And what is that crying she hears at night? Through the power of hope,friendship and the magic of nature, the brave girl brings the house and along-lost garden back to life.51. All of the following books have children as their main characters except_____.A. PETER PANB. GONE WITH THE WINDC. A LITTLE PRINCESSD. THE SECRET GARDEN52. We can know from the passage that______.A. there are only three books with tapesB. we can buy 5 kinds of the above books in bookstoresC. two of the books are written by Frances Hodgson BurnettD. THE SECRET GARDEN is ¥ 5 cheaper in bookstores than online53. If you buy THE SECRET GARDEN and PETER PAN online, you have to pay_____.A. ¥ 30B. ¥ 12C. ¥ 50D. ¥ 4254. Mary brings the house and a long-lost garden back to life with the help of the following things EXCEPT_______.A. the power of hopeB. friendshipC. her uncleD. nature’s magic55. The passage can best describe as a/an _____.A. reportB. instructionC. advertisementD. story51-55 BCDCCBArtificial intelligence(AI) is set to benefit(对...有益) mankind in many ways. It will make everyday tasks easier and bring efficiency(高效) to many industries. It might be one of man’s greatest inventions.And yet, like any other technology, AI will also bring risks. In February, 2019, a group of AI experts got together to discuss the possible disadvantages of AI. What they found was that “Every AI developed by the good guys is also helpful for the bad guy s, too.” according to Quartz.Their biggest worry was that the bad guys could use AI for bad things. One of the areas they looked at was the use of AI to create websites that could be used to steal people’s personal information. Another possibility is that AI programs could be used to hack software and break into computer secure systems(电脑安全系统).There are some other worries as well. It is possible that AI could be used to create fake imagines and videos. Baidu, in fact, has developed a program called Deep Voice that can “clone(克隆)” anyone’s voice by studying a 3.7-second audio sample(音频样本).Many leading people have expressed worries about AI. People like Bill Gates and Elon Musk have called for the industry to be more strictly controlled, as there are few laws right now on the use of AI.However, this is set to change. In March 2019, the European Union plans to set up a group that will discuss the moral and ethical(伦理道德的) dangers of AI, which will help to keep it safe for mankind.( )56. ________ is probably one of mankind’s greatest inventions according to the passage.A. Many industriesB. Artificial intelligenceC. BaiduD. Clone tech()57. The underlined word“hack” in Paragraph 3 means ________ in Chinese. A. 保护 B. 对比 C. 入侵 D. 学习()58. The program Deep Voice can be used for________.A. protecting computer secure systemsB. stealing people’s personal informationC. controlling all the industryD. cloning people’s voice()59. ________ have called for the AI industry to be more strictly controlled.A. Bill Gates and Elon MuskB. The European UnionC. A group of AI expertsD. All of the mankind()60. What does this passage mainly talk about?A. The benefits of artificial intelligence.B. How to use artificial intelligence.C. People’s worries about artificial intelligence.D. The future of artificial intelligence.56-60BCDACC配对阅读左栏是五位学生的兴趣爱好以及他们想要做的事情,右栏是一些适合他们的活动。