河南省商丘市柘城中学2017-2018学年度八年级第一学期竞赛考试英语模拟试卷

每日一学：河南省商丘市柘城县2017-2018学年八年级上学期数学期末考试试卷_压轴题解答
答案河南省商丘市柘城县2017-2018学年八年级上学期数学期末考试试卷_压轴题
~~ 第1题 ~~
(2018柘城.八上期末) 在△ABC 中，AB=AC ，D 是线段BC 的延长线上一点，以AD
为一边在AD 的右侧作△ADE ，使AE =AD ，∠DAE=∠BAC ，连接CE ．
（1） 如图，点D 在线段BC 的延长线上移动，若∠BAC=30°，则∠DCE=．
（2） 设∠BAC=α，∠DCE=β：
①如图，当点D 在线段BC 的延长线上移动时，α与β之间有什么数量关系？请说明理由；
②当点D 在直线BC 上（不与B 、C 重合）移动时，α与β之间有什么数量关系？请直接写出你的结论．
考点： 三角形的外角性质;全等三角形的判定与性质;~~ 第2题 ~~
(2018柘城.八上期末) 某列车平均提速60km/h 用相同的时间，该列车提速前行驶200km ，提速后比提速前多行驶100km ，求提速前该列车的平均速度．若设提速前该列车的平均速度为xkm/h ，则列出的方程为________
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3题 ~~
(2018柘城.八上期末) 若关于x 的分式方程
的解为正数，则满足条件的正整数m 的值为（ ）
A . 1，2，3
B . 1，2
C . 1，3
D . 2，3河南省商丘市柘城县2017-2018
学年八年级上学期数学期末考试试卷_压轴题解答
~~ 第1题 ~~
答案：
解析：
~~ 第2题 ~~
答案：
解析：
~~ 第3题 ~~
答案：C
解析：。

八年级语文第一次月考试卷一、基础知识1．下列加点字的注音完全正确的一项是( )(2分)A．凛．冽(lǐng) 要塞．(sài) 轻盈．(yínɡ) 锐不可当．(dǎng)B．颁．发(bān) 仲．裁(zhòng) 履．行(lǚ) 屏息敛．声(liǎn)C．悄．然(qiāo) 翘．首(qiáo) 湛．蓝(zhàn) 摧枯拉朽．(xiǔ)D．凌．波(lín) 镌．刻(juān) 督．战(dū) 一丝不苟．(gǒu)2．下列各组词语中汉字书写完全正确的一项是( )(2分)A．潇洒凌空凛冽眼花潦乱B．监视操纵桅杆阵耳欲聋C．馈退坠毁紧绷惮精竭虑D．浩瀚遗嘱经纶隐天蔽日3．下列加点的词语使用有误的一项是( )(2分)A．军乐团奏响《检阅进行曲》，万众瞩目．．．．的阅兵分列式开始了。

B．舆论的力量就像排山倒海．．．．一般，令人无法抵挡。

C．中国人每年“舌尖上浪费”锐不可当．．．．，被倒掉的食物相当于2亿多人一年的口粮。

D．一位市民收到中奖短信，喜冲冲跑去银行汇钱，却在见到银行前一道防诈骗横幅后如梦初醒．．．．。

4．下列句子没有语病的一项是( )(2分)A．新春佳节，万家团圆，你们却依然坚守在祖国最北端的边防线上，你们的钢铁之躯为万家和乐奉献着自己的青春。

B．一首首诗，一段段合唱，一幕幕短歌剧，在两小时之内，将半个多世纪的残酷历史出现在我们眼前。

C．战争的历史与人类的历史一样久远，从远古战争中走来的现代人，依然没有走出战争的阴影。

D．能否规范地书写汉字，是对义务教育阶段学生书写的基本要求。

5．对下列句子的修辞手法判断有误的一项是( )(2分)A．航母就像汪洋中的一片树叶，在海上起伏行进。

(比喻)B．金戈铁马，气吞万里如虎。

(借代、夸张)C．发动机的咆哮声越来越大，舰载机越来越近了。

(夸张、拟人)D．她已经展开身体，像轻盈的、笔直的箭，“哧”地插进碧波之中，几串白色的气泡拥抱了这位自天而降的仙女，四面水花则悄然不惊。

2017-2018学年河南省商丘市柘城县八年级（下）期末数学试卷一、填空题（每小题4分，共24分）1．（4分）若整数x满足|x|≤3，则使为整数的x的值是（只需填一个）．2．（4分）一组数据由5个整数组成，已知中位数是4，唯一众数是5，则这组数据的最大和可能是．3．（4分）一次函数y＝kx+b，当1≤x≤4时，3≤y≤6，则的值是．4．（4分）已知直线y＝﹣x+3与x轴、y轴分别交于A、B两点，点C（0，n）是y轴上一点，把坐标平面沿直线AC折叠，使点B刚好落在x轴上，则点C的坐标是．5．（4分）如图，P是正方形ABCD内一点，将△ABP移到△CBP′位置，若BP＝3，则PP′的长为．6．（4分）如图，圆柱形容器中，高为1.2m，底面周长为1m，在容器内壁离容器底部0.3m 的点B处有一蚊子，此时一只壁虎正好在容器外壁，离容器上沿0.3m与蚊子相对的点A 处，则壁虎捕捉蚊子的最短距离为m（容器厚度忽略不计）．二、选择题（每小题4分，共32分）下列各小题均有四个答案，其中只有一个是正确的，把你认为正确的答案前的代号字母填入题后括号内7．（4分）已知＝﹣x，则（）A．x≤0B．x≤﹣3C．x≥﹣3D．﹣3≤x≤0 8．（4分）如图所示，在△ABC中，AB＝AC＝5，D是BC上的点，DE∥AB交AC于点E，DF∥AC交AB于点F，那么四边形AFDE的周长是（）A．5B．10C．15D．209．（4分）如图，四边形ABCD是菱形，对角线AC＝8cm，BD＝6cm，DH⊥AB于点H，且DH与AC交于点G，AG＝cm，则GH的长为（）A．cm B．cm C．cm D．cm10．（4分）一次函数y＝﹣mx+n的图象经过第二、三、四象限，则化简所得的结果是（）A．m B．﹣m C．2m﹣n D．m﹣2n11．（4分）对于一次函数y＝kx+b（k≠0），两个同学分别作出了描述，小刚说：y随x的增大而增大；小亮说：b＜0；则与描述相符的图象是（）A．B．C．D．12．（4分）若正比例函数的图象经过点（﹣1，2），则这个图象必经过点（）A．（1，2）B．（﹣1，﹣2）C．（2，﹣1）D．（1，﹣2）13．（4分）一次函数y＝kx+b（k，b是常数，k≠0）的图象如图所示，则不等式kx+b＞0的解集是（）A．x＞﹣2B．x＞0C．x＜﹣2D．x＜014．（4分）小明同学将某班级毕业升学体育测试成绩（满分30分）统计整理，得到下表，则下列说法错误的是（）A．该组数据的众数是24分B．该组数据的平均数是25分C．该组数据的中位数是24分D．该组数据的极差是8分三、解答题（共44分15．（5分）（1）计算：﹣（）2+（π+）0﹣+|﹣2|（2）已知a＝（+），b＝（﹣），求a2﹣ab+b2的值．16．（5分）已知直线y＝k1x+b1（k1＞0）与y＝k2x+b2（k2＜0）相交于点A（﹣2，0），且两直线与y轴围成的三角形面积为4，求b1﹣b2的值．17．（6分）如图，△ABC中，AB＝BC，BE⊥AC于点E，AD⊥BC于点D，∠BAD＝45°，AD与BE交于点F，连结CF．（1）求证：BF＝2AE；（2）若CD＝，求AD的长．18．（6分）如图，正比例函数y＝2x的图象与一次函数y＝kx+b的图象交于点A（m，2），一次函数图象经过点B（﹣2，﹣1），与y轴的交点为C，与x轴的交点为D．（1）求一次函数解析式；（2）求C点的坐标；（3）求△AOD的面积．19．（7分）为了比较市场上甲、乙两种电子钟每日走时误差的情况，从这两种电子钟中，各随机抽取10台进行测试，两种电子钟走时误差的数据如表（单位：秒）：（1）计算甲、乙两种电子钟走时误差的平均数；（2）计算甲、乙两种电子钟走时误差的方差；（3）根据经验，走时稳定性较好的电子钟质量更优．若两种类型的电子钟价格相同，请问：你买哪种电子钟？为什么？20．（7分）今年我市水果大丰收，A、B两个水果基地分别收获水果380件、320件，现需把这些水果全部运往甲、乙两销售点，从A基地运往甲、乙两销售点的费用分别为每件40元和20元，从B基地运往甲、乙两销售点的费用分别为每件15元和30元，现甲销售点需要水果400件，乙销售点需要水果300件．（1）设从A基地运往甲销售点水果x件，总运费为W元，请用含x的代数式表示W，并写出x的取值范围；（2）若总运费不超过18300元，且A地运往甲销售点的水果不低于200件，试确定运费最低的运输方案，并求出最低运费．21．（8分）如图1，在正方形ABCD中，P是对角线BD上的一点，点E在AD的延长线上，且P A＝PE，PE交CD于F．（1）证明：PC＝PE；（2）求∠CPE的度数；（3）如图2，把正方形ABCD改为菱形ABCD，其他条件不变，当∠ABC＝120°时，连接CE，试探究线段AP与线段CE的数量关系，并说明理由．2017-2018学年河南省商丘市柘城县八年级（下）期末数学试卷参考答案与试题解析一、填空题（每小题4分，共24分）1．【解答】解：∵|x|≤3，∴﹣3≤x≤3，∴当x＝﹣2时，＝＝3，x＝3时，＝＝2．故，使为整数的x的值是﹣2或3（填写一个即可）．故答案为：﹣2或3．2．【解答】解：中位数是4，唯一众数是5，所以这5个数按由小到大排列时，后面三个数为4，5，5，当前面两个数为2和3时，这组数据和最大，最大值为19．故答案为19．3．【解答】解：当k＞0时，此函数是增函数，∵当1≤x≤4时，3≤y≤6，∴当x＝1时，y＝3；当x＝4时，y＝6，∴，解得，∴＝2；当k＜0时，此函数是减函数，∵当1≤x≤4时，3≤y≤6，∴当x＝1时，y＝6；当x＝4时，y＝3，∴，解得，∴＝﹣7．故答案为：2或﹣7．4．【解答】解：①若B'在x轴左半轴，过C作CD⊥AB于D，如图，对于直线y＝﹣x+3，令x＝0，得y＝3；令y＝0，x＝4，∴A（4，0），B（0，3），即OA＝4，OB＝3，∴AB＝5，又∵坐标平面沿直线AC折叠，使点B刚好落在x轴上，∴AC平分∠OAB，∴CD＝CO＝n，则BC＝3﹣n，∴DA＝OA＝4，∴DB＝5﹣4＝1，在Rt△BCD中，DC2+BD2＝BC2，∴n2+12＝（3﹣n）2，解得n＝，∴点C的坐标为（0，）．②若B'在x轴右半轴，如图，则AB'＝AB＝5，设OC＝x，则CB'＝CB＝x+3，OB'＝OA+AB'＝4+5＝9，在Rt△OCB'中，OB'2+OC2＝CB'2，即92+x2＝（x+3）2，解得：x＝12，即可得此时点C的坐标为（0，﹣12）．故答案为：（0，）或（0，﹣12）．5．【解答】解：由旋转的性质可知，∠PBP′＝90°，则△PBP′为等腰直角三角形，∴BP＝BP′，∵BP＝3，∴PP′＝＝3．故答案为：3．6．【解答】解：如图：∵高为1.2m，底面周长为1m，在容器内壁离容器底部0.3m的点B处有一蚊子，此时一只壁虎正好在容器外壁，离容器上沿0.3m与蚊子相对的点A处，∴A′D＝0.5m，BD＝1.2﹣0.3+AE＝1.2m，∴将容器侧面展开，作A关于EF的对称点A′，连接A′B，则A′B即为最短距离，A′B＝＝＝1.3（m）．故答案为：1.3．二、选择题（每小题4分，共32分）下列各小题均有四个答案，其中只有一个是正确的，把你认为正确的答案前的代号字母填入题后括号内7．【解答】解：∵＝﹣x≥0，∴x≤0，x+3≥0，∴﹣3≤x≤0，故选：D．8．【解答】解：∵DE∥AB，DF∥AC，则四边形AFDE是平行四边形，∠B＝∠EDC，∠FDB＝∠C∵AB＝AC，∴∠B＝∠C，∴∠B＝∠FDB，∠C＝∠EDF∴BF＝FD，DE＝EC，所以：▱AFDE的周长等于AB+AC＝10．故选：B．9．【解答】解：∵四边形ABCD是菱形，对角线AC＝8cm，BD＝6cm，∴AO＝4cm，BO＝3cm，在Rt△AOB中，AB＝＝5cm，∵BD×AC＝AB×DH，∴DH＝cm，在Rt△DHB中，BH＝＝cm，则AH＝AB﹣BH＝cm，∴GH＝＝＝cm．故选：B．10．【解答】解：∵一次函数y＝﹣mx+n的图象经过第二、三、四象限，∴﹣m＜0，n＜0，即m＞0，n＜0，∴＝|m﹣n|+|n|＝m﹣n﹣n＝m﹣2n．故选：D．11．【解答】解：由y随x的增大而增大，得k＞0，又∴b＜0，∴一次函数的图象经过一三四象限，故选：A．12．【解答】解：设正比例函数的解析式为y＝kx（k≠0），因为正比例函数y＝kx的图象经过点（﹣1，2），所以2＝﹣k，解得：k＝﹣2，所以y＝﹣2x，把这四个选项中的点的坐标分别代入y＝﹣2x中，等号成立的点就在正比例函数y＝﹣2x的图象上，所以这个图象必经过点（1，﹣2）．故选：D．13．【解答】解：由图可知：当x＞﹣2时，y＞0，即kx+b＞0；因此kx+b＞0的解集为：x＞﹣2．故选：A．14．【解答】解：A、组数据的众数是24分，故A正确；B、平均数的计算方法是求出所有数据的和，然后除以数据的总个数，可求得该组数据的平均数是24分，故B错误；C、组数据的中位数是24分，故C正确；D、该组数据的极差是8分，故D正确；符合题意的是B选项，故选：B．三、解答题（共44分15．【解答】解：（1）原式＝﹣3+1﹣3+2﹣＝﹣3；（2）∵a＝（+），b＝（﹣），∴a2＝＝，b2＝＝，ab＝＝∴a2﹣ab+b2＝﹣+＝＝．16．【解答】解：∵k1＞0，∴直线y＝k1x+b1图象经过一、二、三象限其与y轴交于正半轴上一点B（0，b1），∵k2＜0，∴直线y＝k2x+b2图象经过二、三、四象限其与y轴交于负半轴上一点C（0，b2），∴S＝×|OA|×（b1﹣b2）＝×2×（b1﹣b2）＝4，∴b1﹣b2＝4．17．【解答】（1）证明：∵AD⊥BC，∠BAD＝45°，∴△ABD是等腰直角三角形，∴AD＝BD，∵BE⊥AC，AD⊥BC，∴∠CAD+∠ACD＝90°，∠CBE+∠ACD＝90°，∴∠CAD＝∠CBE，在△ADC和△BDF中，，∴△ADC≌△BDF（ASA），∴BF＝AC，∵AB＝BC，BE⊥AC，∴AC＝2AE，∴BF＝2AE；（2）解：∵△ADC≌△BDF，∴DF＝CD＝，在Rt△CDF中，CF＝＝2，∵BE⊥AC，AE＝EC，∴AF＝CF＝2，∴AD＝AF+DF＝+2．18．【解答】解：（1）∵正比例函数y＝2x的图象与一次函数y＝kx+b的图象交于点A（m，2），∴2m＝2，m＝1．把（1，2）和（﹣2，﹣1）代入y＝kx+b，得，解，得，则一次函数解析式是y＝x+1；（2）令x＝0，则y＝1，即点C（0，1）；（3）令y＝0，则x＝﹣1．则△AOD的面积＝×1×2＝1．19．【解答】解；（1）甲种电子钟走时误差的平均数是：＝0，乙种电子钟走时误差的平均数是：＝0；（2）甲种电子钟走时误差的方差是：＝6，乙种电子钟走时误差的方差是：＝4.8；（3）买乙种电子钟，因为通过上面的计算可知甲的方差大于乙的方差，说明乙种电子钟走时稳定性好，故选乙种电子钟．20．【解答】解：（1）设从A基地运往甲销售点水果x件，则从A基地运往乙销售点的水果（380﹣x）件，从B基地运往甲销售点水果（400﹣x）件，运往乙基地（x﹣80）件，由题意得，W＝40x+20（380﹣x）+15（400﹣x）+30（x﹣80），＝35x+11200，即W＝35x+11200，∵，∴80≤x≤380，即x的取值范围是80≤x≤380；（2）∵A地运往甲销售点的水果不低于200件，∴x≥200，∵k＝35＞0，∴运费W随着x的增大而增大，∴当x＝200时，运费最低，为35×200+11200＝18200元＜18300元，此时，方案为：从A基地运往甲销售点的水果200件，运往乙销售点的水果180件，从B基地运往甲销售点的水果200件，运往乙销售点的水果120件．21．【解答】（1）证明：在正方形ABCD中，AB＝BC，∠ABP＝∠CBP＝45°，在△ABP和△CBP中，，∴△ABP≌△CBP（SAS），∴P A＝PC，∵P A＝PE，∴PC＝PE；（2）由（1）知，△ABP≌△CBP，∴∠BAP＝∠BCP，∴∠DAP＝∠DCP，∵P A＝PE，∴∠DAP＝∠E，∴∠DCP＝∠E，∵∠CFP＝∠EFD（对顶角相等），∴180°﹣∠PFC﹣∠PCF＝180°﹣∠DFE﹣∠E，即∠CPF＝∠EDF＝90°；（3）在菱形ABCD中，AB＝BC，∠ABP＝∠CBP，在△ABP和△CBP中，，∴△ABP≌△CBP（SAS），∴P A＝PC，∠BAP＝∠BCP，∴∠DAP＝∠DCP，∵P A＝PE，∴PC＝PE，∵P A＝PE，∴∠DAP＝∠E，∴∠DCP＝∠E，∵∠CFP＝∠EFD，∴∠CPF＝∠EDF∵∠ABC＝∠ADC＝120°，∴∠CPF＝∠EDF＝180°﹣∠ADC＝60°，∴△EPC是等边三角形，∴PC＝CE，∴AP＝CE；。

2017学年七宝二中第一学期八年级英语学科阶段测试试卷Choose the word withthe different sound.(选出划线部分发音不同的单词)(2分)【A】alien【B】arrange【C】favour【D】cage【答案】B【A】peace【B】breakfast【C】death【D】ready【答案】AFill in the blanks according to the phonetics symbols.(根据音标拼写写单词)（3分）Can you speak other foreign languages/ɪkˈsept /English.【答案】exceptHave you/əˈreɪndʒd / to meet him.【答案】arrangedHis/fɪəs /eyes shone in the moonlight.【答案】fierceComplete the following passage with the words or phrases in the box. Each can be used only once.(将下列单词或短语前的字母填入空格，每个单词或短语只能填一次)（4分）A A.realised B. alone C. common D. serious E. more thans ayou ng man, Al was a skilled artist, a potter with a wife and two fine sons. One night, his older son developed a severe stomachache. Thinking it was only some （1）disease, neither Al nor his wife took the condition veryseriously. But the boy died suddenly that night.Knowing the death could have been avoided if he had only （2）the seriousness of the situation, healways felt he was responsible for his son’s death. To make matters worse, his wife left him a short time later,leaving him alone with his six-year-old younger son. The hurt and pain of the two situations were （3）Al could stand, and he turned to alcohol for help. In time Al became an alcoholic.As the alcoholism progressed, Al began to lose everything he owned —his land, house, etc. Finally Al died （4）in small bar. Hearing of Al’s death, I thought, “What a totally wasted life! What a complete failure!”【答案】C A E B【分析】1.此处应填一个形容词，根据句意应该填common 因此这个孩子的病没有得到重视，后面才引发孩子的死亡。

2017-2018学年第二学期八年级英语期中模拟卷（1）(总分：100分)一、单项选择(每小题1分，满分15分)( )1. book named Harry Potter is good friend of mine.A. A;aB. The;theC. The;aD. A;the( )2.Jim ride to school. But now he walking to school because he wants to keep fit.A. was used to; used toB. got used to;is used toC. used to;is used toD. used to;used to( )3.—Julie's father went to London last month.—He there three times.A. goesB. has beenC. wentD. has gone( )4.Many Chinese students think science subjects are foreign languages.A. much difficult thanB. as difficult asC. more difficult asD. so difficult as( )5.We took a trip to Yunnan—one of the most beautiful cities in China.A. five-daysB. five-days'C. five daysD. five days' ( )6.—It must be Jim singing next door.—It be him. He is in Shanghai for a holiday.A. mustn'tB. needn'tC. can'tD. shouldn't( )7. is power. We should keep on learning as long as we live.A. SuccessB. MagicC. KnowledgeD. Thinking( )8.—You look so tired. What's wrong?—I didn't go to bed I finished watching In the Name of People last night.A. untilB. ifC. thoughD. unless( )9.Sue wasn't happy because she the concert given by her favourite singer.A.missesB. missedC. will missD. is missing( )10.The shopping mall for two years, but I there only once.A. has opened;have goneB. has opened;have beenC. has been open; have goneD. has been open;have been( )11.Her husband died three years ago, but her lovely pet dog made her feel less .A. lonelyB. happyC. sadlyD. alone( )12.—have you lived here?—Since we bought the new flat.A. How farB. How soonC. How oftenD. How long ( )13. Lucy had few close friends. So she didn't know about the trouble.A. who to talkB. who to talk toC. who to sayD. what to talk ( )14.My aunt left for France this morning. She won't be back next month.A. untilB. beforeC. afterD. when( )15.—Would you mind my opening the window?—. I've got a cold.A. Never mindB. You'd better notC. All rightD. With pleasure二、完形填空(每小题1分，满分10分)I once felt depressed all day long. Nobody could cheer me up.One day I went to the park for a rest. There was a(n) 1 bench and I sat down. A little boy came around. He stood before me and said. "Look at what I have found!" I 2 and saw a small flower in his hand，a withering(枯萎)flower. I thought to myself. "What a pitiful dead flower-just like my depressing life!" I wanted him to go away, 3 I managed a smile and then turned my head away.4 instead of walking away, he sat down next to me. "It smells good and it's beautiful. That's why I picked it up," he said."Here, it's for you." I knew I had to take it, or he might 5 leave. So I 6 for the flower and said, "Thank you." I 7 , but the boy didn't put the flower in my hand. He just held the flower and didn't move. It was not until then that I noticed the boy couldn't see 8 . He was blind.I took the flower and said, "Thank you! You have picked up the best one.""You are welcome!" The boy felt 9 and ran away.The boy couldn't see, but in his imagination, the world was beautiful. When I saw a withering flower, he "saw" a beautiful one. Perhaps he was the one who had true 10 , while I had been blind for all those times and failed to appreciate(欣赏)the bright side of life.( )1.A. empty B. crowded C. new D. full( )2. A. gave up B. got off C. looked down D. cheered up ( )3.A. but B. so C. yet D. and( )4.A. Therefore B. Besides C. Otherwise D. However ( )5.A. usually B. never C. always D. often( )6.A.held B. reached C. caught D. searched ( )7.A.waited B. changed C. discovered D. promised ( )8. A. anything B. something C. everything D. nothing ( )9. A. worried B. sick C. excited D. unfair ( )10. A. hearing B. sight C. sense D. smell三、阅读理解(每小题2分，满分24分)ADuhai is a city of big business, expensive hotels, skyscrapers(摩天楼),and shopping malls. In the early 20th century, Dubai was a successful tradingport. But it was still a small city, and most people lived as fishermen and businessmen. Then in 1966, oil was discovered. This brought a lot of moneyinto the area, and soon Dubai began to change.Today Dubai is one of the world's most important business centres. In fact,each year the city gets its money mainly from business, not oil.Recently Dubai has attracted more and more visitors from abroad. They come to relax on its beaches, and every year, millions visit just to go shopping!The city is still an amazing mix(混合体)of people from different countries. The people from 150 countries live and work in Dubai, and foreigners now outnumber Dubai natives(本地人)by eight to one!Many people welcome the city's growth. But an increasing number of Dubai natives worry about the speed of change. As a Dubai native says, "We must always remember where we came from. Our kids must know we worked very, very hard to get where we are now, and there's a lotmore work to do."( )1 .What does the underlined word "outnumber" mean?A. To be smaller in size than another group.B. To be more in number than another group.C. To be bigger in area than another group.D. To be smaller in area than another group.( )2 .In the last paragraph, what does the underlined part mean?A. We should always visit Dubai.B. We should learn from foreigners.C. We must always remember our past.D. We must only think about the future.BMalls(购物中心)are popular places for Americans to go to. Some people spend so much time at malls that they are called mall rats. Mall rats shop until they visit hundreds of stores.People like malls for many reasons. They feel safe because malls have police stations. Parking is usually free. And the weather inside is always fine. The newest malls have beautiful rest places with waterfalls and large green trees.The largest mall in the United States is the Mall of America in Minnesota. It covers 4.87 million square feet. It has 530 stores, eight nightclubs, and a large park!There are parking spaces for over 12,000 cars. About 750,000 people shop there every week.The first indoor mall in the United States was built in 1965 in Edins Minnesota. People love doing all their shopping in one place. More malls are built around the country. Now malls are town centers where people come to do many things. They shop, and of course, they also eat in food courts(广场)that have food from all over the world. They see films at theatres. Some people even get their exercise by doing the new sport of "mall walking". Others go to malls to meet friends.In some malls，people can see a doctor and even go to the church. In other words，people can do almost everything in malls. Now people can live in their favourite shopping centres in fact. ( )3. The passage gives reasons why American people like malls.A. 2B. 3C. 4D. 5( )4. What does the third paragraph(段落)mainly tell us?A. People like to go to the mall.B. The Mall of America is noisy.C. When America had the first mall.D. The Mall of America is very large.( )5. Which statement is TRUE according to the passage?A. People can see a doctor in some malls.B. Parking is free in all the malls.C. The malls are only in big cities.D. The largest mall is in Hong Kong.CChildren should be allowed to get angry. I remember many years ago whenI was visiting my sister in Australia, I told my oldest son that he wasn't allowedto do something he really wanted to do. He thought about it for a minute andsaid, "Mum, I'm very angry with you." I replied, "That's OK, darling, it's whatyou do with your anger." I then asked him if he wanted to talk to me about it,but he was too angry to talk to me. Then he stormed off(愤然离开).My sister looked at me in amazement，then she said angrily, "How can youallow your child to be angry with you? If my son learns that from you, I will never forgive(原谅)you."Then it was hard for me to stay with her, and I ended up leaving earlier. Why shouldn't my son have the right(权利)to tell me when I have made him angry? If he can't tell me then how can he tell others in his life?Children need to be able to express how they feel. We need to teach them ways to do this in a right way instead of saying nothing. I want them to tell me. Bottling up anger is not healthy for anyone and usually makes things worse.( )6. How did the writer's sister feel when she saw the son was angry with his mother?A. Happy.B. Sad.C. Pleased.D. Surprised. ( )7.Why did the writer end up leaving earlier when visiting her sister?A. Because her sister was angry with her and she felt it hard to stay there.B. Because she had a meeting later.C. Because her son was angry with her and left.D. Because her sister asked her to leave.( ) 8.The underlined words "Bottling up" means in Chinese.A.瓶子B.装满瓶子C.强忍着不说D.打碎瓶子DFifty-eight years ago Barbie Millicent Roberts first appeared in the world of toys. Since then, Barbie doll, as everyone called her, has become the most successful toy doll in history. Her parent, the Mattel Company, said that 90%of all American girls between 3 and 10 have at least one Barbie at home.However, Barbie is facing some trouble at present(现在).There are many similar dolls on the market in competition with her. Another doll named Bratz, for example, came to life sixteen years ago. She looked more like today's pop stars with heavy makeup(浓妆)and miniskirts. And her company offers more kinds of clothes too.It seems that Barbie has lost her magic among older girls. "For younger girls, playing with a Barbie is much fun. But when you get older, you want something smarter and more modern," says Vera Shepherd, a shop assistant in a New York toy store.It is good news that on the international market，Barbie is still No.l.Although Mattel is selling fewer Barbies in the United States these years, sales in other countries are still going up. In January 2009, Mattel opened its first Barbie store in Shanghai，where girls can shop，eat，drink oreven become fashion designers for their own Barbies.Mattel planned a big celebration for Barbie's 53th birthday in 2012. Fashion designers from all over the world were called to make new dresses for Barbie. How long will Barbie stay popular in the world of toy dolls? It is hard to say, but it is surely not the age to retire(退休).( )9. Barbie's trouble is that .A. it wears heavy makeup and miniskirtsB. other dolls are more popular with little girlsC, other dolls are trying to beat her in the marketD. it has become less popular in the international market( )10. Girls can do the following in the first Barbie shop in Shanghai except .A. going shoppingB. having foodC. drinking juiceD. taking photos ( )11.What's the meaning of the underlined words "fashion designers" in the passage?A.珠宝设计师B.发型设计师C.舞台设计师D.服装设计师( )12.What is the best title of the passage?A. First Barbie Shop in ShanghaiB. Barbie's Past and PresentC. Barbie's 53th Birthday PartyD. Barbie Lost Her Magic四、词汇检测(每小题1分，满分10分)根据所给汉语注释或通过上下文写出单词。

2017学年第二学期八年级英语期中检测试卷参考答案卷Ⅰ听力部分（本卷共有15小题，每小题1分，共15分）1-5 CACBC 6-10 BBAAC 11-15 ABCAC卷Ⅱ笔试部分一、单项填空（本题有10小题，每小题1分，共10分）16-20 BDBCA 21-25 CDBAC二、完形填空（本题有15小题，每小题1分，共15分）26-30 CBDCB 31-35 ACADA 36-40 DBCDA三、阅读理解（本题有15小题，每小题2分，共30分）41-45 ACCBB 46-50 DABDA 51-55 CAADA四、词汇运用（本题有15小题，每小题1分，共15分）56. sour57. sky 58. messages 59. won60. out61. queen 62. stranger63. pies 64. ugly65. weak66. invited 67. tower68. reached69. nervous 70. lesson（58题填message, 59题填win，63题填pie，66题填invite, 68题填reach，均得0.5分，其他形式不给分。

）六、书面表达（本题有1小题，共15分）71. 略评分标准如下：各档次的给分范围和要求：第五档（13-15分）能写出全部或绝大部分内容要点；语言基本无误，行文连贯，表达清楚。

第四档（10-12分）能写出部分内容要点；语言基本无误，行文基本连贯，表达基本清楚。

第三档（7-9分）能写出部分内容要点；语言有较多错误，尚能达意。

第二档（4-6分）只能写出少部分内容要点；语言错误很多，只有个别句子可读。

第一档（0-3分）能写出与所要求内容有关的一些单词。

空白不得分。

听力材料第一节：听小对话，从每题所给的A、B、C、三个选项中选出最佳选项。

1.M: Have you cooked a meal for your parents, Cindy?W: Yes, I’ve cooked dinner for my father on Father’s Day as a present.2. W: Long time no see! What are you up to, John?M:I’ve just made a model spaceship. It will be a spaceship to Mars one day.3. M: Maria, too many hamburgers are bad for your health.W: Oh, fast food is the only thing I can eat. I just don’t like fruit and vegetables.4. W: Who’s your favorite cartoon hero, Ben?M: The Monkey King. I enjoy the exciting story when he makes a mess in Heaven.5. M: That girl is truly good at playing basketball. Who is she?W: The one with short fair hair and a pair of glasses? That’s my sister, Tina.第二节：听长对话，从每题所给的A、B、C、三个选项中选出最佳选项。

2019年秋八年级英语期中考试题参考答案听力部分（20分）1-5：CCABB 6-10：ABACB 11-15：BBACC16. outgoing 17. heart 18. talented 19. Performer 20. Successful笔试部分一、单项选择(每小题1分，满分15分)21-25CADAA 26-30DBACB 31-35CBDCB二、完形填空（10分）36-40 BDACB 41-45 ACDBD三、阅读理解（20分）46-50 CBADD 51-55 ACDBB四、词语运用56.play 57. But 58.successful 59. countries 60. thank61.even 62. their 63.loves 64. cares 65. about五、补全对话（10分）66. What happened67. Then what/how about going by bike68. How does Tony go to school69.No, she doesn’t.70. How long does it take Jane to walk to school六、书面表达(15分)As an old saying goes, “Like father, like son. ” In some ways, I am the same as my parents. We all have straight black hair. And we all love movies. In some ways, we are different. I am more outgoing and I like making friends. But my parents are quieter. I usually stay at home to surf the Internet when I am free. But my parents like going out to exercise. But now, I begin to exercise with my parents because it is good for my health. I love my parents and I want to say thanks to them.。

2018年九年级毕业考试英语答案听力材料一、听力理解（共20小题，每小题1分，共20分）第一节听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳答案，并将其标号填入提前括号内。

每段对话读两遍。

1.W: What a heavy snow! It doesn't often snow so heavily here in DecemberM. Lets make a snowman when this snow stops. I’ll get something ready first, I mean a carrot to make a nose and some buttons to make two eyes for the snowman.2. W: These Christmas cards look very nice, I like them. How much are they?M: One dollar eachW: Good. I will take five3. W: Excuse me, I wonder where I can get a book by J. K. Rowling.M: Go along this street and turn right at the third crossing.There’s a bookstore 100 meters on the left. it's a little far. You can take a NO. 9 bus on the other side of the streetW. I will do that. Thank you very much.4.W. There’s a basketball match at the stadium.Would you like to go with me?M: I’d love to. But I can’t. I have a speech contest tomorrow and I have to prepare for it now.5. W: When is your plane? M:It's 8:30W: So there's only one hour left. You really need to hurry up.第二节听下面几段对话或独白。

2017-2018学年河南省商丘市柘城县八年级（上）期中数学试卷一、填空题（共6小题，每小题4分，满分24分）1．（4分）如图，AD是∠CAE的平分线，∠B=35°，∠DAE=60°，则∠ACD=．2．（4分）若一扇窗户打开后，用窗钩将其固定，主要运用的几何原理是．3．（4分）如图，∠C=∠D，∠CAB=∠DBA，AD交BC于O，请写出图中所有相等的线段．4．（4分）在同一平面内，点（﹣2，3）关于x轴的对称点P′的坐标为．5．（4分）如图，在△ABC中，AB=AC，AD是BC边上的高，点E、F是AD的三等分点，若△ABC的面积为12cm2，则图中阴影部分的面积是cm2．6．（4分）如图，已知AD是△ABC的角平分线，在不添加任何辅助线的前提下，要使△AED≌△AFD，需添加一个条件是：．二、选择题（共8小题，每小题4分，满分32分）7．（4分）已知三角形两边的长分别是4和10，则此三角形第三边的长可能是（）A．5 B．6 C．11 D．168．（4分）已知一个正多边形的内角和为1440°，则这个正多边形的每一个外角的度数是（）A．36°B．45°C．72°D．60°9．（4分）已知直角三角形中30°角所对的直角边长是2厘米，则斜边的长是（）A．2厘米B．4厘米C．6厘米D．8厘米10．（4分）等腰三角形的周长为13cm，其中一边长为3cm，则该等腰三角形的底边为（）A．7cm B．3cm C．7cm或3cm D．8cm11．（4分）在一些美术字中，有的汉字是轴对称图形．下面4个汉字中，可以看作是轴对称图形的是（）A． B． C． D．12．（4分）如图，△ABC中，∠ACB=90°，沿CD折叠△CBD，使点B恰好落在AC边上的点E处．若∠A=22°，则∠BDC等于（）A．44°B．60°C．67°D．77°13．（4分）如图点P在∠AOB的平分线上，PD⊥OA，垂足为D，已知PD=6，则点P到OB的距离是（）A．3 B．4 C．5 D．614．（4分）如图，G，E分别是正方形ABCD的边AB，BC的点，且AG=CE，AE ⊥EF，AE=EF，现有如下结论：①BE=GE；②△AGE≌△ECF；③∠FCD=45°其中，正确的结论有（）A．1个 B．2个 C．3个 D．4个三、解答题（共7小题，满分44分）15．（5分）已知一个多边形的内角和是外角和的，求这个多边形的边数．16．（5分）如图，在△ABC中，D是BC上一点，∠1=∠2，∠3=∠4，∠BAC=63°，求∠DAC的度数．17．（6分）如图所示，设AC与BD相交与O，AB=DC，AC=DB．求证：∠BAC=∠BDC．18．（6分）等边三角形ABC的边长为3，D是AC的中点，点E在BC的延长线上，若DE=DB，求CE的长．19．（7分）如图，在长度为1个单位长度的小正方形组成的长方形中，点A，B，C在小正方形的顶点上．（1）在图中画出与△ABC关于直线l成轴对称的△AB′C′；（2）△ABC的面积为；（3）在直线l上找一点P，使PB+PC的长最短，则这个最短长度为．20．（7分）如图，已知AC∥BD，EA、EB分别平分∠CAB和∠DBA，CD过点E，求证：AB=AC+BD．21．（8分）在Rt△ABC中，∠C=90°，AC=10cm，BC=5cm，P，Q两点分别在AC 上和过点A且垂直于AC的射线AM上运动，且PQ=AB，问P点运动到AC上什么位置时△ABC才能和△QPA全等．2017-2018学年河南省商丘市柘城县八年级（上）期中数学试卷参考答案与试题解析一、填空题（共6小题，每小题4分，满分24分）1．（4分）如图，AD是∠CAE的平分线，∠B=35°，∠DAE=60°，则∠ACD=95°．【解答】解：由三角形的外角性质得，∠D=∠DAE﹣∠B=60°﹣35°=25°，∵AD是∠CAE的平分线，∴∠CAD=∠DAE=60°，∴∠ACD=180°﹣60°﹣25°=95°．故答案为：95°．2．（4分）若一扇窗户打开后，用窗钩将其固定，主要运用的几何原理是三角形的稳定性．【解答】解：一扇窗户打开后，用窗钩将其固定，正好形成三角形的形状，所以，主要运用的几何原理是三角形的稳定性．故答案为：三角形的稳定性．3．（4分）如图，∠C=∠D，∠CAB=∠DBA，AD交BC于O，请写出图中所有相等的线段AC=BD，BC=AD，OA=OB，OC=OD．【解答】解：在△CAB和△DBA中，，∴△CAB≌△DBA（AAS），∴BC=AD，AC=BD，∠CBA=∠DAB，∴OA=OB，OC=OD，∴相等的线段有：AC=BD，BC=AD，OA=OB，OC=OD．故答案为AC=BD，BC=AD，OA=OB，OC=OD．4．（4分）在同一平面内，点（﹣2，3）关于x轴的对称点P′的坐标为（﹣2，﹣3）．【解答】解：点（﹣2，3）关于x轴的对称点P′的坐标为（﹣2，﹣3）．故答案为：（﹣2，﹣3）．5．（4分）如图，在△ABC中，AB=AC，AD是BC边上的高，点E、F是AD的三等分点，若△ABC的面积为12cm2，则图中阴影部分的面积是6cm2．【解答】解：∵△ABC中，AB=AC，AD是BC边上的高，∴△ABC是轴对称图形，且直线AD是对称轴，∴△CEF和△BEF的面积相等，∴S阴影=S△ABD，∵AB=AC，AD是BC边上的高，∴BD=CD，∴S△ABD=S△ACD=S△ABC，∵S△ABC=12cm2，∴S阴影=12÷2=6cm2．故答案为：6．6．（4分）如图，已知AD是△ABC的角平分线，在不添加任何辅助线的前提下，要使△AED≌△AFD，需添加一个条件是：AE=AF或∠EDA=∠FDA．【解答】解：①添加条件：AE=AF，证明：在△AED与△AFD中，∵AE=AF，∠EAD=∠FAD，AD=AD，∴△AED≌△AFD（SAS），②添加条件：∠EDA=∠FDA，证明：在△AED与△AFD中，∵∠EAD=∠FAD，AD=AD，∠EDA=∠FDA，∴△AED≌△AFD（ASA）．故答案为：AE=AF或∠EDA=∠FDA．二、选择题（共8小题，每小题4分，满分32分）7．（4分）已知三角形两边的长分别是4和10，则此三角形第三边的长可能是（）A．5 B．6 C．11 D．16【解答】解：设此三角形第三边的长为x，则10﹣4＜x＜10+4，即6＜x＜14，四个选项中只有11符合条件．故选：C．8．（4分）已知一个正多边形的内角和为1440°，则这个正多边形的每一个外角的度数是（）A．36°B．45°C．72°D．60°【解答】解：设此多边形为n边形，根据题意得：180（n﹣2）=1440，解得：n=10，∴这个正多边形的每一个外角等于：360°÷10=36°．故选：A．9．（4分）已知直角三角形中30°角所对的直角边长是2厘米，则斜边的长是（）A．2厘米B．4厘米C．6厘米D．8厘米【解答】解：∵直角三角形中30°角所对的直角边长是2厘米，∴斜边的长是4厘米．故选：B．10．（4分）等腰三角形的周长为13cm，其中一边长为3cm，则该等腰三角形的底边为（）A．7cm B．3cm C．7cm或3cm D．8cm【解答】解：当腰是3cm时，则另两边是3cm，7cm．而3+3＜7，不满足三边关系定理，因而应舍去．当底边是3cm时，另两边长是5cm，5cm．则该等腰三角形的底边为3cm．故选：B．11．（4分）在一些美术字中，有的汉字是轴对称图形．下面4个汉字中，可以看作是轴对称图形的是（）A． B． C． D．【解答】解：A、是轴对称图形，故本选项正确；B、不是轴对称图形，故本选项错误；C、不是轴对称图形，故本选项错误；D、不是轴对称图形，故本选项错误．故选：A．12．（4分）如图，△ABC中，∠ACB=90°，沿CD折叠△CBD，使点B恰好落在AC边上的点E处．若∠A=22°，则∠BDC等于（）A．44°B．60°C．67°D．77°【解答】解：△ABC中，∠ACB=90°，∠A=22°，∴∠B=90°﹣∠A=68°，由折叠的性质可得：∠CED=∠B=68°，∠BDC=∠EDC，∴∠ADE=∠CED﹣∠A=46°，∴∠BDC==67°．故选：C．13．（4分）如图点P在∠AOB的平分线上，PD⊥OA，垂足为D，已知PD=6，则点P到OB的距离是（）A．3 B．4 C．5 D．6【解答】解：如图，过点P作PE⊥OB，∵OC是∠AOB的平分线，点P在OC上，且PD⊥OA，PE⊥OB，∴PE=PD，又∵PD=6，∴PE=PD=6．故选：D．14．（4分）如图，G，E分别是正方形ABCD的边AB，BC的点，且AG=CE，AE ⊥EF，AE=EF，现有如下结论：①BE=GE；②△AGE≌△ECF；③∠FCD=45°其中，正确的结论有（）A．1个 B．2个 C．3个 D．4个【解答】解：∵四边形ABCD是正方形，∴∠B=∠DCB=90°，AB=BC，∵AG=CE，∴BG=BE，由勾股定理得：BE=GE，∴①错误；∵BG=BE，∠B=90°，∴∠BGE=∠BEG=45°，∴∠AGE=135°，∴∠GAE+∠AEG=45°，∵AE⊥EF，∴∠AEF=90°，∵∠BEG=45°，∴∠AEG+∠FEC=45°，∴∠GAE=∠FEC，在△GAE和△CEF中，∴△GAE≌△CEF，∴②正确；∴∠AGE=∠ECF=135°，∴∠FCD=135°﹣90°=45°，∴③正确；故选：B．三、解答题（共7小题，满分44分）15．（5分）已知一个多边形的内角和是外角和的，求这个多边形的边数．【解答】解：设这个多边形是n边形，由题意得，（n﹣2）•180°=360°×，解得n=5，故这个多边形的边数为5．16．（5分）如图，在△ABC中，D是BC上一点，∠1=∠2，∠3=∠4，∠BAC=63°，求∠DAC的度数．【解答】解：∵∠4=∠1+∠2，∠3=∠4，∠1=∠2，∠BAC=63°，∴∠3=∠1+∠2=2∠2，∵∠BAC+∠2+∠3=180°，即3∠2+63°=180°，∴∠2=39°，∴∠DAC=∠BAC﹣∠1=63°﹣39°=24°．17．（6分）如图所示，设AC与BD相交与O，AB=DC，AC=DB．求证：∠BAC=∠BDC．【解答】证明：连接BC．在△ABC和△DCB中，，∴△ABC≌△DCB（SSS），∴∠BAC=∠BDC．18．（6分）等边三角形ABC的边长为3，D是AC的中点，点E在BC的延长线上，若DE=DB，求CE的长．【解答】解：∵等边三角形ABC的边长为3，D是AC的中点，∴BD平分∠ABC，∠ABC=60°，AC=3，CD=1.5∴∠DBE=30°，∵DE=DB，∴∠DEB=∠DBE，∴∠DEB=30°，∵∠ACB=60°，∴∠CDE=30°，∴CD=CE，∵CD=1.5，∴CE=1.5，即CE的长是1.5．19．（7分）如图，在长度为1个单位长度的小正方形组成的长方形中，点A，B，C在小正方形的顶点上．（1）在图中画出与△ABC关于直线l成轴对称的△AB′C′；（2）△ABC的面积为；（3）在直线l上找一点P，使PB+PC的长最短，则这个最短长度为5．【解答】解：（1）如图所示；（2）S=4×3﹣×1×3﹣×2×3﹣×1×4△ABC=12﹣﹣3﹣2=．故答案为：；（3）连接BC′交直线l于点P，则P点即为所求点，此时PB+PC的最短长度为线段BC′的长，BC′==5．故答案为：5．20．（7分）如图，已知AC∥BD，EA、EB分别平分∠CAB和∠DBA，CD过点E，求证：AB=AC+BD．【解答】证明：在AB上取一点F，使AF=AC，连结EF．∵EA、EB分别平分∠CAB和∠DBA，∴∠CAE=∠FAE，∠EBF=∠EBD．∵AC∥BD，∴∠C+∠D=180°．在△ACE和△AFE中，，∴△ACE≌△AFE（SAS），∴∠C=∠AFE．∵∠AFE+∠EFB=180°，∴∠EFB=∠D．在△BEF和△BED中，，∴△BEF≌△BED（AAS），∴BF=BD．∵AB=AF+BF，∴AB=AC+BD．21．（8分）在Rt△ABC中，∠C=90°，AC=10cm，BC=5cm，P，Q两点分别在AC 上和过点A且垂直于AC的射线AM上运动，且PQ=AB，问P点运动到AC上什么位置时△ABC才能和△QPA全等．【解答】解：根据三角形全等的判定方法HL可知：①当P运动到AP=BC时，∵∠C=∠QAP=90°，在Rt△ABC与Rt△QPA中，∴Rt△ABC≌Rt△QPA（HL），即AP=BC=5cm；②当P运动到与C点重合时，AP=AC，在Rt△ABC与Rt△QPA中，，∴Rt△QAP≌Rt△BCA（HL），即AP=AC=10cm，∴当点P与点C重合时，△ABC才能和△APQ全等．综上所述，当P运动到AP=BC、点P与点C重合时，△ABC才能和△APQ全等．。