初二上学期期末测试题(一)

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2022-2023学年重庆八中八年级上学期期末数学试卷及参考答案

2022-2023学年重庆八中八年级上学期期末数学试卷及参考答案

2022-2023学年重庆八中初二数学第一学期期末试卷一、选择题。

(共10小题,每小题4分,满分40分) 1.下列北京冬奥会运动标识图案是轴对称图形的是( )A .B .C .D .2.函数3y x =+中,自变量x 的取值范围是( ) A .3x >−B .3x −C .3x ≠−D .3x −3.下列运算正确的是( ) A .246a a a ⋅=B .325(2)2a a =C .632x x x −÷=−D .222x x x −=4.下列等式中,从左到右的变形是因式分解的是( ) A .321836a bc a b ac =⋅ B .211(2)22ab a a b a −=−C .241(4)1x x x x −+=−+D .22(1)21x x x +=++5.已知点P 在第四象限,且到x 轴的距离是2,到y 轴的距离是7,则点P 的坐标为( )A .(7,2)−B .(2,7)−C .(7,2)D .(2,7)6.甲、乙、丙、丁四人进行射击测试,他们在相同条件下各射击10次,成绩(单位:环)统计如下表:甲 乙丙 丁 平均数x (单位:环)9.7 m 9.3 9.6 方差2s0.25n0.280.27根据表中数据,可以判断乙是四人中成绩最好且发挥最稳定的,则m 、n 的值可以是( ) A .9.9m =,0.3n = B .9.9m =,0.2n = C .9m =,0.3n =D .9m =,0.2n =7.将直线26y x =−+向左移1个单位,所得到的直线解析式为( ) A .27y x =−+B .25y x =−+C .28y x =−+D .24y x =−+8.如图,在ABC ∆中,13AB CB ==,BD AC ⊥于点D 且12BD =,AE BC ⊥于点E ,连接DE ,则DE 的长为()A .52B .72C .5D .69.用如图①中的长方形和正方形纸板作侧面和底面,做成如图②的竖式和横式的两种无盖纸盒.现有60张正方形纸板和140张长方形纸板,如果做两种纸盒若干个,恰好将纸板用完,设做x 个竖式无盖纸盒,y 个横式无盖纸盒,则可列方程组( )A .46023140x y x y +=⎧⎨+=⎩B .26043140x y x y +=⎧⎨+=⎩C .36024140x y x y +=⎧⎨+=⎩D .36042140x y x y +=⎧⎨+=⎩10.如图,直线3y x =+分别与x 轴、y 轴交于点A ,C ,直线y mx m =−分别与x 轴、y 轴交于点B 、D ,则下列说法正确的有( )A .直线AC 与x 轴夹角为45︒B .直线BD 经过点(1,0)C .当0m <时,直线BD 经过两个点1257(,),(,)22P y Q y ,则12y y <D .直线AC 与直线BD 相交于点(,2)M a ,则不等式3x mx m +−的解集为1x −二、填空题。

2023年初中道法八年级上册第一学期期末测试卷(一)打印版含答案

2023年初中道法八年级上册第一学期期末测试卷(一)打印版含答案

2023年初中道法八年级上册第一学期期末测试卷(一)打印版含答案八年级·道德与法治上册(R版)时间:60分钟满分:100分一、选择题(每小题3分,共45分)1.浙江省杭州市富阳区富春第七小学的孩子们在传统节气芒种这天来到了渔山乡的水稻田里,跟农民伯伯们一起学插秧。

孩子们脱掉鞋袜,走进稻田,弯着腰,点着苗,有模有样。

这是富阳“新式劳动教育”实践中的一堂课。

开设这样的课程有利于鼓励学生()①脱离校园,在社会的大课堂中学习②积极投身社会实践,养成亲社会行为③在社会课堂中积极学习、健康成长④通过社会学习,成为合格的社会成员A.①②③B.①②④C.①③④D.②③④2.网络让“业务上云”成为可能。

生鲜电商、在线教育、远程办公等行业持续进行技术创新,着力保障防控期间人们的工作、生活有序开展,推动实施“居家能办公,停课不停学,停工不停产”。

这表明()①网络让我们的生活更加便利②网络可解决生活中的一切问题③生活的各个领域都需要创新④互联网提高了文化传播的速度A.①③B.②③C.①④D.③④3.一张女子坐在疑似客机驾驶舱内的照片在网上引发热议。

桂林航空经核实,决定对当事机长处以终身停飞的处罚。

这说明()①自由要受到社会规则的约束②违反规则应受到相应的处罚③遵守社会规则需他律和自律④社会规则保障社会秩序的实现A.①②③B.①③④C.②③④D.①②③④4. 下列选项是几位同学的行为表现,其中能够反映践行社会主义核心价值观中诚信价值准则的是()A.小雅同学经常帮助同学学习英语B.小硕同学在公共场所从不大声喧哗C.小林同学能积极参加每周的升旗仪式D.小博同学在考试中不弄虚作假5.在网络时代,“人人都是通讯社,个个都有麦克风”。

然而,要想通过“麦克风”发出“好声音”,还要练就“好嗓子”。

作为公民,要在网络世界练就“好嗓子”,就必须()①加强自我约束,放弃言论自由②合理利用网络,传播社会正能量③依法自由表达,正确行使权利④拒绝不良诱惑,彻底远离网络A.①②B.②③C.①④D.③④6.河南济源市人民法院判处了一起高空抛物案,被告人卫某某从20楼抛下电动车,法院最终以以危险方法危害公共安全罪判处其有期徒刑3年。

2025届湖南省株洲市炎陵县八年级物理第一学期期末达标测试试题含解析

2025届湖南省株洲市炎陵县八年级物理第一学期期末达标测试试题含解析

2025届湖南省株洲市炎陵县八年级物理第一学期期末达标测试试题考生请注意: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1.图是实验室中的一种温度计,关于它的说法正确的是()A.该温度计的分度值是0.1℃B.该温度计是根据固体热胀冷缩的原理制成的C.该温度计的测量范围是﹣2℃~60℃D.在使用该温度计时,可以离开被测物体读数2.根据你对生活中物理量的认识,下列估测中最接近生活实际的是()A.人体的正常体温为40℃B.一个中学生的质量约为50kgC.中学生的课桌高约为1.5m D.一个中学生跑100m约需5s3.如图是太阳能无人机Aquila,它使用碳纤维制造以减轻重量,主要利用了碳纤维的()A.硬度大B.密度小C.易导电性D.可塑性强4.在生产和生活中,人们常把密度作为所选材料的主要考虑因素成之一,下面属于主要从密度的角度考虑选材的是()A.用钨作为白炽灯泡灯丝的材料B.用塑料作为插座外壳的材料C.用铝合金作为制作飞机的材料D.用橡胶作为汽车轮胎的材料5.下列关于物态变化的说法中,正确的是()A.雪的形成是凝固现象,吸热B.露的形成是液化现象,吸热C.霜的形成是凝华现象,放热D.云的形成是汽化现象,放热6.下列数据不符合实际的是()A.某中学生的质量约45kgB.某中学生的身高约1.65mC.某中学生的步行速度约1m/sD.某中学生的百米赛跑成绩约6s7.甲、乙两个小灯泡串联在电路中,发现甲灯比乙灯亮,下面说法正确的是()A.通过甲灯的电流比乙灯大B.乙灯两端的电压比甲灯低C.甲灯的额定功率比乙灯大D.乙灯对电流的阻碍作用比甲灯大8.下列对一名中学生的有关数据估测合理的是( )A.身高约为1.7 dm B.质量约为500 kgC.体温约为20 ℃D.手掌宽约为10 cm9.在“探究敲击铜管发声的频率与管子长度、直径关系”的实验中,小明选取管壁厚度相同,长度和直径不同的三根铜管,将它们用细线竖直悬挂,敲击后,测出各自发出声音的频率,数据如下表:根据小明的实验数据()A.只能得出频率随长度增加而减小的结论B.只能得出频率随直径增加而减小的结论C.选项A和B的结论都不能得出D.选项A和B的结论都能得出10.一瓶纯净水喝掉一半后,剩下的半瓶水与原来的一瓶水比较,以下说法正确的是()A.质量变大,密度变大B.质量不变,密度变小C.质量变小,密度不变D.质量变小,密度变小11.如图所示是新中国成立70周年在天安门广场前国旗护卫队预备升旗时的场景,根据图片提供的信息估测国旗AB 间的宽度。

人教版八年级上学期数学《期末测试卷》带答案

人教版八年级上学期数学《期末测试卷》带答案
22.已知 在平面直角坐标系中的位置如图所示.
(1)画出 关于 轴对称的 ;
(2)每个小方格都是边长为1个单位的正方形,求多边形 的面积.
23.奉节脐橙是重庆市奉节县特产,中国地理标志产品,眼下,正值奉节脐橙销售旺季,某商家看准商机,第一次用4800元购进一批奉节脐橙,销售良好,于是第二次又用12000元购进一批奉节脐橙,但此时进价比第一次涨了2元,所购进的数量恰好是第一次购进数量的两倍.
10.在平行四边形 中, , , ,则平行四边形 的面积等于()
A. B. 4C. D. 6
[答案]A
[解析]
[分析]
根据题意作图,作AE⊥BC,根据 ,AB= 求出平行四边形的高AE,再根据平行四边形的面积公式进行求解.
[详解]如图,作AE⊥BC
∵ ,AB=
∴AE= AB= ,
∴平行四边形 面积=BC×AE=2× =2
A. B.2C.3D.
[答案]C
[解析]
[分析]
连接BD,根据题意得到BD平分∠CBA,得到∠DBE=30°,再根据三角函数即可求解.
[详解]连接BD,
∵ , ,
∴BD平分∠CBA
∴∠DBE=30°,
∴BE=DE÷tan30°= =3,
故选C.
[点睛]此题主要考查解直角三角形,解题的关键是熟知角平分线的判定及性质、三角函数的应用.
B、是轴对称图形,故此选项正确;
C、不是轴对称图形,故此选项错误;
D、不是轴对称图形,故此选项错误;
故选:B.
[点睛]此题主要考查了轴对称图形,关键是掌握轴对称图形的概念.
2.下列计算正确的是()
A. B. C. D.
[答案]A
[解析]
[分析]

人教版英语八年级上学期《期末考试试题》(带答案)

人教版英语八年级上学期《期末考试试题》(带答案)
·oil,salt and pepper
The way to make it:
Remove(去除)the bones(骨头)from the fish.
Pour oil(油)into a pan,Fry(煎)the ginger slices and the spring onions. Add the fish bones.
A. Along the river.B. On the playground.C. In the small park.
19. How many stores are there in the neighborhood?
A. 1.B. 2.C. 3
20. Why does Zhou Yang like the library best?
The things you need(for 4 people):
·a whole fish
·2 apples,cut into 8 pieces
·4-6 ginger slices(姜片)
·a bunch of spring onions,cut into pieces
·a red tomato,cut into 8 pieces
听两遍。根据你所听到的短文内容,从A、B、C三个选项中选出正确答案。
17. How does Zhou Yang like her new neighborhood?
A. She likes it.B. She dislikes it.C. She doesn’t mind.
18. Where do people go for a walk?
听两遍。根据你所听到的对话,从A、B、C三个选项中选出正确答案。
听第一段对话,回答第13-14小题:

【必考题】初二数学上期末第一次模拟试卷(及答案)

【必考题】初二数学上期末第一次模拟试卷(及答案)

【必考题】初二数学上期末第一次模拟试卷(及答案)一、选择题1.如图,将边长相等的正方形、正五边形、正六边形纸板,按如图方式放在桌面上,则a ∠的度数是( )A .42oB .40oC .36oD .32o2.如图,已知每个小方格的边长为1,A ,B 两点都在小方格的顶点上,请在图中找一个顶点C ,使△ABC 为等腰三角形,则这样的顶点C 有( )A .8个B .7个C .6个D .5个3.2019年7月30日阳朔至鹿寨高速公路建成通车,已知从阳朔至鹿寨国道的路程为150km ,现在高速路程缩短了20km ,若走高速的平均车速是走国道的2.5倍,所花时间比走国道少用1.5小时,设走国道的平均车速为/xkm h ,则根据题意可列方程为( )A .15020150 1.52.5x x --=B .15015020 1.52.5x x--= C .15015020 1.52.5x x --= D .15020150 1.52.5x x--= 4.若实数m 、n 满足 402n m -+=-,且m 、n 恰好是等腰△ABC 的两条边的边长,则△ABC 的周长是 ( )A .12B .10C .8或10D .6 5.如图,直线L 上有三个正方形a ,b ,c ,若a ,c 的面积分别为1和9,则b 的面积为( )A .8B .9C .10D .11 6.如图,在△ABC 中,AB =AC ,∠A =30°,AB 的垂直平分线l 交AC 于点D ,则∠CBD 的度数为( )A .30°B .45°C .50°D .75°7.如图,在ABC ∆中,ABC ∠和ACB ∠的平分线相交于点O ,过点O 作//EF BC 交AB 于点E ,交AC 于点F ,过点O 作OD AC ⊥于点D ,某班学生在一次数学活动课中,探索出如下结论,其中错误的是( )A .EF BE CF =+B .点O 到ABC ∆各边的距离相等 C .90BOC A ∠=+∠oD .设OD m =,AE AF n +=,则12AEF S mn ∆= 8.若代数式4x x -有意义,则实数x 的取值范围是( ) A .x =0 B .x =4 C .x ≠0 D .x ≠49.如图,把△ABC 纸片沿DE 折叠,当点A 落在四边形BCDE 内部时,则∠A 与∠1+∠2之间有一种数量关系始终保持不变.请试着找一找这个规律,你发现的规律是( )A .∠A=∠1+∠2B .2∠A=∠1+∠2C .3∠A=2∠1+∠2D .3∠A=2(∠1+∠2) 10.如图,Rt △ABC 中,AD 是∠BAC 的平分线,DE ⊥AB ,垂足为E ,若AB=10cm ,AC=6cm ,则BE 的长度为( )A .10cmB .6cmC .4cmD .2cm11.如图, BD 是△ABC 的角平分线, AE ⊥ BD ,垂足为 F ,若∠ABC =35°,∠ C =50°,则∠CDE 的度数为( )A .35°B .40°C .45°D .50° 12.计算:(4x 3﹣2x )÷(﹣2x )的结果是( )A .2x 2﹣1B .﹣2x 2﹣1C .﹣2x 2+1D .﹣2x 2 二、填空题13.3(5)2(5)x x x -+-分解因式的结果为__________.14.如果24x kx ++是一个完全平方式,那么k 的值是__________.15.如图,小新从A 点出发,沿直线前进50米后向左转30°,再沿直线前进50米,又向左转30°,…照这样下去,小新第一次回到出发地A 点时,一共走了__米.16.已知x m =6,x n =3,则x 2m ﹣n 的值为_____.17.如图,ABC V 的三边AB BC CA 、、 的长分别为405060、、,其三条角平分线交于点O ,则::ABO BCO CAO S S S V V V =______.18.如图,在锐角△ABC 中,AB=4,∠BAC=45°,∠BAC 的平分线交BC 于点D ,M 、N 分别是AD 和AB 上的动点,则BM+MN 的最小值是__________.19.如图,在△ABC 中,∠A=70°,点O 到AB,BC,AC 的距离相等,连接BO ,CO ,则∠BOC=________.20.如图,在△ABC中,BF⊥AC 于点F,AD⊥BC 于点D ,BF 与AD 相交于点E.若AD=BD,BC=8cm,DC=3cm.则 AE= _______________cm .三、解答题21.已知:如图,在△ABC 中,AB=AC,∠BAC=90°,D 是BC 上一点,EC⊥BC,EC=BD,DF=FE.求证:(1)△ABD≌△ACE;(2)AF⊥DE.22.先化简代数式1﹣1xx-÷2212xx x-+,并从﹣1,0,1,3中选取一个合适的代入求值.23.先化简,再求值:当|x﹣2|+(y+1)2=0时,求[(3x+2y)(3x﹣2y)+(2y+x)(2y ﹣3x)]÷4x的值.24.2018年8月中国铁路总公司宣布,京津高铁将再次提速,担任此次运营任务是最新的复兴号动车组,提速后车速是之前的1.5倍,100千米缩短了10分钟,问提速前后的速度分别是多少千米每小时?25.用A、B两种机器人搬运大米,A型机器人比B型机器人每小时多搬运20袋大米,A 型机器人搬运700袋大米与B型机器人搬运500袋大米所用时间相等.求A、B型机器人每小时分别搬运多少袋大米.【参考答案】***试卷处理标记,请不要删除一、选择题1.A解析:A【解析】【分析】根据正多边形的内角,角的和差,可得答案.【详解】解:正方形的内角为90°,正五边形的内角为(52)1801085︒︒-⨯=,正六边形的内角为(62)1801206︒︒-⨯=,∠1=360°-90°-108°-120°=42°, 故选:A .【点睛】 本题考查多边形的内角与外角,解题关键是利用正多边形的内角进行计算.2.A解析:A【解析】【分析】分AB 为腰和为底两种情况考虑,画出图形,即可找出点C 的个数.【详解】解:当AB 为底时,作AB 的垂直平分线,可找出格点C 的个数有5个,当AB 为腰时,分别以A 、B 点为顶点,以AB 为半径作弧,可找出格点C 的个数有3个; ∴这样的顶点C 有8个.故选:A .【点睛】本题考查了等腰三角形的判定,解题的关键是画出图形,利用数形结合解决问题.3.C解析:C【解析】【分析】根据“走高速用的时间比走国道少花1.5小时”列出方程即可得出答案.【详解】根据题意可得,走高速所用时间150202.5x -小时,走国道所用时间150x小时即150150201.52.5x x--=故答案选择C.【点睛】本题考查的是分式方程在实际生活中的应用,根据公式“路程=速度×时间”及其变形列出等式是解决本题的关键.4.B解析:B【解析】【分析】根据绝对值和二次根式的非负性得m、n的值,再分情况讨论:①若腰为2,底为4,由三角形两边之和大于第三边,舍去;②若腰为4,底为2,再由三角形周长公式计算即可.【详解】由题意得:m-2=0,n-4=0,∴m=2,n=4,又∵m、n恰好是等腰△ABC的两条边的边长,①若腰为2,底为4,此时不能构成三角形,舍去,②若腰为4,底为2,则周长为:4+4+2=10,故选B.【点睛】本题考查了非负数的性质以及等腰三角形的性质,根据非负数的性质求出m、n的值是解题的关键.5.C解析:C【解析】【分析】【详解】试题分析:运用正方形边长相等,再根据同角的余角相等可得∠BAC=∠DCE,然后证明△ACB≌△DCE,再结合全等三角形的性质和勾股定理来求解即可.解:由于a、b、c都是正方形,所以AC=CD,∠ACD=90°;∵∠ACB+∠DCE=∠ACB+∠BAC=90°,即∠BAC=∠DCE,在△ABC和△CED中,,∴△ACB≌△CDE(AAS),∴AB=CE ,BC=DE ;在Rt △ABC 中,由勾股定理得:AC 2=AB 2+BC 2=AB 2+DE 2,即S b =S a +S c =1+9=10,∴b 的面积为10,故选C .考点:全等三角形的判定与性质;勾股定理;正方形的性质.6.B解析:B【解析】试题解析:∵AB =AC ,∠A =30°,∴∠ABC =∠ACB =75°,∵AB 的垂直平分线交AC 于D ,∴AD =BD ,∴∠A =∠ABD =30°,∴∠BDC =60°,∴∠CBD =180°﹣75°﹣60°=45°.故选B .7.C解析:C【解析】【分析】利用角平分线的性质、等腰三角形的判定与性质逐一判定即可.【详解】∵在△ABC 中,∠ABC 和∠ACB 的平分线相交于点O∴∠OBC=12∠ABC ,∠OCB=12∠ACB ,∠A+∠ABC+∠ACB=180°, ∴∠OBC+∠OCB=90°-12∠A ∴∠BOC=180°-(∠OBC+∠OCB )=90°+12∠A ,故C 错误; ∵∠EBO=∠CBO ,∠FCO=∠BCO ,//EF BC ∴∠EBO=∠EOB ,∠FCO=∠FOC ,∴BE=OE ,CF=OF∴EF=EO+OF=BE+CF ,故A 正确;由已知,得点O 是ABC ∆的内心,到ABC ∆各边的距离相等,故B 正确;作OM ⊥AB ,交AB 于M ,连接OA ,如图所示:∵在△ABC 中,∠ABC 和∠ACB 的平分线相交于点O∴OM=OD m =∴()11112222AEF AOE AOF S S S AE OM AF OD OD AE AF mn =+=⋅+⋅=⋅+=△△△,故D 选项正确;故选:C.【点睛】 此题主要考查运用角平分线的性质、等腰三角形的判定与性质,解题关键是注意数形结合思想的运用.8.D解析:D【解析】由分式有意义的条件:分母不为0,即x-4≠0,解得x≠4,故选D.9.B解析:B【解析】【分析】根据四边形的内角和为360°、平角的定义及翻折的性质,就可求出2∠A=∠1+∠2这一始终保持不变的性质.【详解】∵在四边形ADA′E 中,∠A+∠A′+∠ADA′+∠AEA′=360°,则2∠A+(180°-∠2)+(180°-∠1)=360°,∴可得2∠A=∠1+∠2.故选:B【点睛】本题主要考查四边形的内角和及翻折的性质特点,解决本题的关键是熟记翻折的性质.10.C解析:C【解析】试题解析:∵AD 是∠BAC 的平分线,∴CD=DE ,在Rt △ACD 和Rt △AED 中,{CD DE AD AD==, ∴Rt △ACD ≌Rt △AED (HL ),∴AE=AC=6cm ,∵AB=10cm ,∴EB=4cm .故选C .11.C解析:C 【解析】【分析】根据角平分线的定义和垂直的定义得到∠ABD=∠EBD=12∠ABC=352︒,∠AFB=∠EFB=90°,推出AB=BE,根据等腰三角形的性质得到AF=EF,求得AD=ED,得到∠DAF=∠DEF,根据三角形的外角的性质即可得到结论.【详解】∵BD是△ABC的角平分线,AE⊥BD,∴∠ABD=∠EBD=12∠ABC=352︒,∠AFB=∠EFB=90°,∴∠BAF=∠BEF=90°-17.5°,∴AB=BE,∴AF=EF,∴AD=ED,∴∠DAF=∠DEF,∵∠BAC=180°-∠ABC-∠C=95°,∴∠BED=∠BAD=95°,∴∠CDE=95°-50°=45°,故选C.【点睛】本题考查了三角形的内角和,全等三角形的判定和性质,三角形的外角的性质,熟练掌握全等三角形的判定和性质是解题的关键.12.C解析:C【解析】【分析】直接利用整式的除法运算法则计算得出答案.【详解】解:(4x3﹣2x)÷(﹣2x)=﹣2x2+1.故选C.【点睛】此题主要考查了整式的除法运算,正确掌握运算法则是解题关键.二、填空题13.(x-5)(3x-2)【解析】【分析】先把代数式进行整理然后提公因式即可得到答案【详解】解:==;故答案为:【点睛】本题考查了提公因式法分解因式解题的关键是熟练掌握分解因式的几种方法解析:(x-5)(3x-2)【解析】【分析】先把代数式进行整理,然后提公因式(5)x -,即可得到答案.【详解】解:3(5)2(5)x x x -+-=3(5)2(5)x x x ---=(5)(32)x x --;故答案为:(5)(32)x x --.【点睛】本题考查了提公因式法分解因式,解题的关键是熟练掌握分解因式的几种方法. 14.±4【解析】【分析】这里首末两项是x 和2的平方那么中间项为加上或减去x 和2的乘积的2倍也就是kx 由此对应求得k 的数值即可【详解】∵是一个多项式的完全平方∴kx=±2×2⋅x ∴k=±4故答案为:±4【 解析:±4.【解析】【分析】这里首末两项是x 和2的平方,那么中间项为加上或减去x 和2的乘积的2倍也就是kx ,由此对应求得k 的数值即可.【详解】∵24x kx ++是一个多项式的完全平方,∴kx=±2×2⋅x , ∴k=±4. 故答案为:±4. 【点睛】此题考查完全平方式,解题关键在于掌握计算公式.15.600【解析】【分析】【详解】解:根据题意可知:小新从A 点出发沿直线前进50米后向左转30º再沿直线前进50米又向左转30º……照这样下去小新第一次回到出发地A 点时小新走的路线围成一个正多边形且这个解析:600【解析】【分析】【详解】解:根据题意可知:小新从A 点出发,沿直线前进50米后向左转30º,再沿直线前进50米,又向左转30º,……照这样下去,小新第一次回到出发地A 点时,小新走的路线围成一个正多边形,且这个多边形的外角等于30º,所以这个正多边形的边数是12,小新一共走了12×50=600米,故答案为:600.16.12【解析】【分析】逆用同底数幂的除法法则和幂的乘方的运算法则进行解答即可【详解】∵∴故答案为12【点睛】熟记同底数幂的除法法则:幂的乘方的运算法则:并能逆用这两个法则是解答本题的关键解析:12【解析】【分析】逆用“同底数幂的除法法则和幂的乘方的运算法则”进行解答即可.【详解】∵63m n x x ==,,∴222()6312m n m n x x x -=÷=÷=.故答案为12.【点睛】熟记“同底数幂的除法法则:m n m n a a a -÷=,幂的乘方的运算法则:()m n mn a a =,并能逆用这两个法则”是解答本题的关键. 17.【解析】【分析】首先过点O 作OD ⊥AB 于点D 作OE ⊥AC 于点E 作OF ⊥BC 于点F 由OAOBOC 是△ABC 的三条角平分线根据角平分线的性质可得OD=OE=OF 又由△ABC 的三边ABBCCA 长分别为40解析:4:5:6【解析】【分析】首先过点O 作OD ⊥AB 于点D ,作OE ⊥AC 于点E ,作OF ⊥BC 于点F ,由OA ,OB ,OC 是△ABC 的三条角平分线,根据角平分线的性质,可得OD=OE=OF ,又由△ABC 的三边AB 、BC 、CA 长分别为40、50、60,即可求得S △ABO :S △BCO :S △CAO 的值.【详解】解:过点O 作OD ⊥AB 于点D ,作OE ⊥AC 于点E ,作OF ⊥BC 于点F ,∵OA ,OB ,OC 是△ABC 的三条角平分线,∴OD=OE=OF ,∵△ABC 的三边AB 、BC 、CA 长分别为40、50、60,∴S △ABO :S △BCO :S △CAO =(12AB •OD ):(12BC •OF ):(12AC •OE ) =AB :BC :AC=40:50:60=4:5:6. 故答案为:4:5:6.【点睛】此题考查了角平分线的性质.此题难度不大,注意掌握辅助线的作法,注意数形结合思想的应用.18.【解析】【分析】从已知条件结合图形认真思考通过构造全等三角形利用三角形的三边的关系确定线段和的最小值【详解】如图在AC上截取AE=AN连接BE∵∠BAC的平分线交BC于点D∴∠EAM=∠NAM∵AM解析:22【解析】【分析】从已知条件结合图形认真思考,通过构造全等三角形,利用三角形的三边的关系确定线段和的最小值.【详解】如图,在AC上截取AE=AN,连接BE∵∠BAC的平分线交BC于点D,∴∠EAM=∠NAM,∵AM=AM∴△AME≌△AMN(SAS),∴ME=MN.∴BM+MN=BM+ME≥BE.∵BM+MN有最小值.当BE是点B到直线AC的距离时,BE⊥AC,又AB=4,∠BAC=45°,此时,△ABE为等腰直角三角形,∴BE=2即BE取最小值为22∴BM+MN的最小值是22【点睛】解此题是受角平分线启发,能够通过构造全等三角形,把BM+MN进行转化,但是转化后没有办法把两个线段的和的最小值转化为点到直线的距离而导致错误.19.125°【解析】【分析】根据角平分线性质推出O为△ABC三角平分线的交点根据三角形内角和定理求出∠ABC+∠ACB根据角平分线定义求出∠OBC+∠OCB 即可求出答案【详解】:∵点O到ABBCAC的距解析:125°【解析】【分析】根据角平分线性质推出O 为△ABC 三角平分线的交点,根据三角形内角和定理求出∠ABC+∠ACB ,根据角平分线定义求出∠OBC+∠OCB ,即可求出答案.【详解】:∵点O 到AB 、BC 、AC 的距离相等,∴OB 平分∠ABC ,OC 平分∠ACB , ∴12OBC ABC ∠=∠,12OCB ACB ∠=∠, ∵∠A=70°,∴∠ABC+∠ACB=180°-70°=110°, ∴1110552OBC OCB ∠+∠=⨯︒=︒, ∴∠BOC=180°-(∠OBC+∠OCB )=125°;故答案为:125.【点睛】本题主要考查平分线的性质,三角形内角和定理的应用,能求出∠OBC+∠OCB 的度数是解此题的关键.20.【解析】【分析】易证∠CAD=∠CBF 即可求证△ACD≌△BED 可得DE=CD 即可求得AE 的长即可解题【详解】解:∵BF⊥AC 于FAD⊥BC 于D∴∠CAD+∠C=90°∠CBF+∠C=90°∴∠CA解析:【解析】【分析】易证∠CAD=∠CBF ,即可求证△ACD ≌△BED ,可得DE=CD ,即可求得AE 的长,即可解题.【详解】解:∵BF ⊥AC 于F ,AD ⊥BC 于D ,∴∠CAD+∠C=90°,∠CBF+∠C=90°,∴∠CAD=∠CBF ,∵在△ACD 和△BED 中,90CAD CBF AD BDADC BDE ︒∠=∠⎧⎪=⎨⎪∠=∠=⎩∴△ACD ≌△BED ,(ASA )∴DE=CD ,∴AE=AD-DE=BD-CD=BC-CD-CD=2;故答案为2.【点睛】本题考查了全等三角形的判定和性质,本题中求证△ACD ≌△BED 是解题的关键.三、解答题21.(1)证明见解析;(2)证明见解析.【解析】【分析】(1)根据等腰三角形两底角相等求出∠B=∠BCA=45°,再求出∠ACE=45°,从而得到∠B=∠ACE,然后利用“边角边”即可证明△ABD≌△ACE;(2)根据全等三角形对应边相等可得AD=AE,然后利用等腰三角形三线合一的性质证明即可.【详解】(1)∵AB=AC,∠BAC=90°,∴∠B=∠BCA=45°,∵EC⊥BC,∴∠ACE=90°﹣45°=45°,∴∠B=∠ACE,在△ABD和△ACE中,AB ACB ACE BD EC=⎧⎪∠=∠⎨⎪=⎩,∴△ABD≌△ACE(SAS);(2)由(1)知,△ABD≌△ACE,∴AD=AE,等腰△ADE中,∵DF=FE,∴AF⊥DE.【点睛】本题考查了全等三角形的判定与性质,等腰三角形三线合一的性质,熟练掌握三角形全等的判定方法以及等腰三角形的性质是解题的关键.22.-11x+,-14.【解析】试题分析:根据分式的除法和减法可以化简题目中的式子,然后在﹣1,0,1,3中选取一个使得原分式有意义的x的值代入即可解答本题.试题解析:原式=1﹣()()()21·11x xxx x x+-+-=1﹣21xx++=121x xx+--+=-11x+,当x=3时,原式=﹣131+=-14.23.【解析】【分析】先利用非负性求出,x y的值,根式整式的混合运算法则对所求式子进行化简,把,x y的值代入运算即可.【详解】 解:()2210x y -++=Q ,∴2010x y -=+=,, 解得,21x y ==-,, ∴()()()()[3232223]4,x y x y y x y x x +-++-÷()22229446234,x y y xy xy x x =-+-+-÷ ()2644,x xy x =-÷ 1.5.x y =-当21x y ==-,时,1.5x y -()1.521,=⨯--31=+=4.24.提速前的速度为200千米/小时,提速后的速度为350千米/小时,【解析】【分析】设列车提速前的速度为x 千米每小时和列车提速后的速度为1.5千米每小时,根据关键语句“100千米缩短了10分钟”可列方程,解方程即可.【详解】设提速前后的速度分别为x 千米每小时和1.5x 千米每小时,根据题意得:100100101.560x x -= 解得:x=200,经检验:x=200是原方程的根,∴1.5x=300,答:提速前后的速度分别是200千米每小时和300千米每小时.【点睛】考查了分式方程的应用,解题关键是弄懂题意,找出等量关系,列出方程.25.A 型机器人每小时搬大米70袋,则B 型机器人每小时搬运50袋.【解析】【分析】工作效率:设A 型机器人每小时搬大米x 袋,则B 型机器人每小时搬运(x ﹣20)袋;工作量:A 型机器人搬运700袋大米,B 型机器人搬运500袋大米;工作时间就可以表示为:A 型机器人所用时间=700x ,B 型机器人所用时间=500x-20,由所用时间相等,建立等量关系.【详解】设A 型机器人每小时搬大米x 袋,则B 型机器人每小时搬运(x ﹣20)袋,依题意得:700x=500x-20,解这个方程得:x=70经检验x=70是方程的解,所以x﹣20=50.答:A型机器人每小时搬大米70袋,则B型机器人每小时搬运50袋.考点:分式方程的应用.。

八年级上册语文期末测试题以及答案

八年级上册语文期末测试题以及答案

八年级上册语文期末测试题以及答案八年级上册最新语文期末测试题以及答案期末考试是指每个学期快结束时,学校往往以试卷的形式对各门学科进行该学期学问把握的检测。

八年级上册语文期末考试的测试题有哪些?下面是我为大家整理的关于八年级上册最新语文期末测试题,欢迎大家来阅读。

八年级(上册)语文期末测试题及答案一、积累与运用(共20分)1.将下面诗句正确、规范、干净地抄写在方格内。

(1分)书籍是人类进步的阶梯。

2.下列加划线字读音、书写完全正确的一项是( )(2分)A.圩堤(yú) 肆虐(sì nüè) 灰烬(jìn) 悬崖决壁(jué)B.险俊(jùn) 倔强(juèjiàng) 裨益(bì) 咄咄逼人(duō)C.带挈(xiè) 阿谀(ēyú) 砭骨(fá) 容光换发(huàn)D.颠簸(bǒ) 贿赂(huì lù) 着落(zhuó) 刀耕火种(zhòng)3.下面句子中加点的成语运用精确的一项是( )(2分)A.桂林的山水黄山的松,真是巧夺天工。

B.同学们常常向老师请教,这种不耻下问的精神值得提倡。

C.谈起电脑、互联网,这个孩子竟然说得头头是道,左右逢源,使在场的专家也赞叹不已。

D.想不到从前的“浪子”今日却成了英雄,这就不得不令人刮目相看了。

4.下列句子没有语病的一项是( )(2分)A、通过阅读这本书,使我增长了不少新的学问。

B、有没有顽强的意志,是事业胜利的关键。

C、解放后,人们的生活水平在逐步提高。

D、既然天气很冷,你也要多穿点衣服5.在横线上仿写句子,所写句子要符合语境,并与上文意思相关,句式相同,连接顺畅。

秋天如酒,余味悠长;秋天如禅,发人深思;________________,________________。

6.填空。

部编人教版2023--2024学年度第一学期八年级语文期末测试卷及答案

部编人教版2023--2024学年度第一学期八年级语文期末测试卷及答案

D .“契而不舍”应写成“锲而不舍”。

2. 有同学对文段横线处的朝代不清楚,请你帮他填上正确内容。

(用正楷字书写)(1分)活动二在浩瀚太空中,在广袤大地上,总有一抹抹亮色让人刻骨铭心、激扬奋进。

那是夜空中最亮的星【甲】那是中华大地上最耀眼的光。

抗疫战场,义无反顾,最美“逆行者”向险而行,书写责任与担当;无畏艰险,攀登珠峰,8848.86 米不仅是数字,更象征着中华民族勇攀高峰、不懈拼搏的精神;科技探索,星际穿越,“嫦娥”“北斗”,承载着中国乃至人类的智慧之光奋力向前【乙】这一个个壮举,让我们明白了:只有坚守责任与担当,不断钻研与探索,敢于拼搏和挑战,才能创造奇迹。

3. 在文段【甲】【乙】两处依次填入标点,正确的一项是( )(2分)A .分号 省略号B .分号 分号C .逗号 分号D .逗号 省略号4. 画线句作为这段文字的总结句,有一处表达欠妥,请你加以修改。

(2分)修改: 活动三我们向榜样致敬。

【甲】致敬杜甫,您心怀济世情怀,历经磨难,仍不折不挠;【乙】致敬苏炳添,9秒83,冲出亚洲的速度,你不懈坚持,妙手偶得,创出佳绩;【丙】致敬张定宇,您用渐冻的生命,与大○………………内………………○………………装………………○………………订………………○………………线………………○航天的传奇,年过古稀未伏枥,犹向苍穹寄深情。

作为新时代的接班人,我们应该学习榜样精神,踔厉奋发,笃行不怠。

我们面对不同的困难,都应展现出磨而不磷....、涅而不缁....的决心,付出脚踏实地的行动。

学习榜样,绽放青春! 这真是:古今榜样承前启后① ② 继往开来谱新篇5. 画线句中修辞方法或成语使用不恰当...的一项是( )(2分) A .【甲】B .【乙】C .【丙】D .【丁】6. 同学们借助《古汉语常用字字典》为加点的词语作了批注,发现“磨而不磷、涅而不缁”所共同表达出的意思是 。

(2分)7. 文中对联横线处所填内容最恰当的一项是( )(2分) A .①创奇迹 ②盛世少年 B .①造辉煌 ②少年笃行 C .①创奇迹 ②少年笃行 D .①造辉煌 ②盛世少年 二、古诗文阅读(共17分) (一)(共4分) 8.古诗文默写。

八年级英语上学期期末试卷真题(人教版含答案)

八年级英语上学期期末试卷真题(人教版含答案)

初二上学期期末英语试卷一、阅读理解1. A.at 2: 00 P .M., on Sunday B.at 11:00 A.M., on SundayC.at 2:00 P .M., on SaturdayD.at 11:00 A.M., on Saturday(1)A.2 B.3 C.4 D.5(2)A.ad for fair B.food menu C.story book D.study report(3)Do you know Beijing Country Fair (集市)? This week, you can enjoy the magic show and thefun of DIY (Do It Yourself). It offers you healthy food for free. Come and see it for yourself!Schedule for Beijing Country FairFRI 11:00 A.M. 12:00 A.M.1:00 P .M.2:00 P .M.3:00 P .M.Free tasteHand-made cookies---------------5-6-year-olds 7-9-year-olds 10-14year-oldsSAT Pet Parades (游行)Hand-made soap---------------9-10-year-olds11-12-year-olds 13-14-year-oldsTeddy's afternoon teaSUN Hand-made activities DIY old clothes Magic showAccording to the passage, you can enjoy the magic show .People can enjoy kinds of activities on Sunday.You will probably find this schedule from a/an .2.You may not have heard the words freshman fifteen before, but they are very important forstudents who are entering university. A freshman is a first-year college student. And the fifteen means fifteen pounds—the fifteen pounds (about 7 kg) of weight (体重)many American students will gain (增加)in their first year at college. There are a few reasons why first-year college students often gain a few pounds. The most common reason may be that many college students just don't eat right.However, if you're careful, it's really quite easy for you not to put on fifteen pounds.(本大题共15小题,每小题2分,共30分)期末复习与测试A.B.C.D.(1)A.B.C.D.(2)A.join a sports team B.study before doing sportsC.exercise less and study moreD.do sports with their friends(3)A.B.C.D.(4)Here are some ideas for staying healthy at college:• Eat only when you are hungry, not when you're bored.• Fill half of your plate with vegetables.• Don't eat desserts that are full of sugar. Have some fruit after dinner instead.• Try not to eat while you study, or keep healthy snacks like baby carrots nearby.• Always eat at the dinner table and never in front of the TV or the computer.• Choose water over sugary drinks.• Try to get out of your room often for some fresh air and exercise.Remember that the freshman fifteen can happen to anyone. Make a deal with your friends to try and eat healthy food together. Walking, running and playing sports are always more fun with friends,too. Help each other eat right and stay fit and you can have a happy and healthy freshman year.The "freshman fifteen" means .fifteen students who eat junk foodweight that high school students gainweight that first-year college students gainfifteen pounds of food that first-year students eat According to this passage, which student will probably get freshman fifteen?Sally usually eats some fresh fruit after dinner.Ann eats ice-cream and cakes after dinner every day.Tom plays basketball with his friends every morning.John never eats anything when he does his homework.The writer suggests that students should .The writer of the passage would probably agree with the idea that .students should study outdoors more oftenstaying healthy is easier with friends' helpall the college students will gain 15 poundssome students can eat anything they want期末复习与测试3. A.①② B.③④ C.①③ D.②④(1)A.Cleaning the room. B.Keeping the air fresh.C.Leaving enough space.D.Turning on the lights.(2)(3)COVID-19(新冠肺炎)stopped people from working for several months in 2020. These days,people have returned to work. What can we do to keep ourselves safe? Here is some advice.When commuting (上下班)Don't take public transport. Try to walk, cycle or drive to your office instead.If you have to take public transport, you shall wear a face mask (口罩)through the ride and try not to touch anything in the subway or on the bus with your hands.Entering the workplaceWear a face mask and receive body temperature check before entering the office building. You must pass the body temperature check before being allowed in. Wash hands in time.If you have a fever, please go to the fever clinic of a hospital at once.Using an elevator (电梯)Avoid using the elevator if you are going to or leaving lower floors. Use the stairs instead.Don't stand near the doors while waiting. Do not stand face to face with people while waiting.In officesOpen windows to let fresh air in during the day. Do it three times a day for 15 minutes to half an hour each time so that you'll have less chance of getting ill. Ventilation can stop the virus (病毒)from building up.Keep healthy habits such as eating a healthy diet, exercising and getting enough sleep. They can help you have a strong body.What must you do before entering the workplace?① Wear a face mash② Use an elevator.③ Receive body temperature check.④ Go to the fever clinic of a hospital.What does the underlined word "Ventilation " probably mean?Which of the following is a good way to keep you strong according to this passage?期末复习与测试A.Opening the window.B.Getting long sleep.C.Keeping healthy habits.D.Doing more outdoor activities.A.B.C.D.(4)What is the best title for the passage?How to Improve Health.Some Ways to Keep Away from COVID-19.Please Get the Body Temperature Check.The Importance of Fighting Against COVID-19.4. A.a large city in China B.a system of waterwaysC.a small river in HangzhouD.part of the Great Wall of China(1)ed in many ways B.not used anymoreC.mainly used for tripsD.hardly used for transporting food(2)A.China B.the Grand Canal(3)Most people have heard of the Great Wall of China, but not many people outside of China know about the Grand Canal. This man-made waterway—known in China as Da Yunhe is 1, 700 kilometers long and some parts of it are more than 2, 000 years old. It links (连接)the north of China with Hangzhou, a city in the southern part of the country. It's the longest man-made waterway in the world.It was built as a way to transport (运输)food from the rich land in China's south to cities in the north. In fact, it's not one canal, but a system (系统)of canals and rivers linked together.It's still an important part of the transport system in China. Thousands of boats use it every day to transport food and many other kinds of things.China is now doing new work on the Grand Canal. It is making parts of it deeper, so bigger ships can use. The canal will also help to move water. There is a lot of rain in the south of China, but not so much in the north. The canal will carry lots of water from the south to the north.The Grand Canal is much less famous than the Great Wall, and not very many visitors know it.But it sees the changes of Chinese history. It's possible logo on a trip along some of the oldest parts of the canal. Visitors can see beautiful parts of China that others don't see.Da Yunhe is .Now the Grand Canal is .In the last paragraph the underlined word "it" refers to .期末复习与测试C.HangzhouD.the Great Wall of ChinaA.B.C.D.(4)What is the writer's main purpose (目的)in writing this passage?To describe the trip on the Grand Canal.To introduce the past and present of the Grand Canal.To show the Grand Canal is more important than the Great Wall.To explain why few people in China know about the Grand Canal.二、信息匹配(本大题共5小题,每小题2分,共10分)5.Top 5 Must Have Apps in China for TravelersWhat apps should I have for a trip to China? With no Facebook, Google, or WhatsAPP , you may worry about how you can look around or stay in touch with friends and family during your China trip.Fear not! The following apps can help you.1This is the top one for you to get in touch with your local Chinese friends. Nowadays, WeChat ID is more popular than your phone number in China. Through the app, we can send texts, voice messages, photos, and make phone and video calls to friends anywhere you go for free.2You just tell the app where to go, the nearest taxi driver can get the message quickly so that you don't need to go to the street to wait for a taxi.3You can buy anything and everything, from clothes and food to computers, pets and even real houses. The best part is that it is cheaper than in the stores and you will get in a very short time,sometimes even on the same day you ordered it!4How do you relax after a day's work? "Youku" offers you a great selection of Chinese, Korean and foreign dramas, movies, songs, dances and other TV shows for free!5期末复习与测试A. B. C. D. E. F.With Alipay, you don't need to take your bank cards. It could be accepted in most Chinese shopsand restaurants. Credit card payments, daily life bills and many city services can also be found in this app. Just take your phone.Feel free to shop for anythingThe best entertainment app for relaxingPay with your phone almost everywhereThe easiest way for you to join a team for funAn app helps you save your time to take a taxiKeep in touch with friends and family at home三、完形填空(本大题共15小题,每小题1分,共15分)6.1.2.Twenty years ago, when Angel and I were studying in college, our professor(教授)taught us alesson we've never forgotten. On the last day of class 1 graduation(毕业), she walked into the classroom to teach the 2 lesson, which she called "a life lesson about mindset(心态)and different ways we 3 things". As she held up a glass of water over her head, everyone thought she would talk about the common "glass half empty or glass half full" lesson. 4 , with a smile on her face, our professor asked, "How 5 is this glass of water I'm holding(握着)?"All the students felt surprised and 6 were from one ounce (about 28g) to a few pounds. After a few moments, she 7 , "The weight(重量)of this glass is not important in my opinion. It all depends on 8 I hold it. If I hold it for a minute or two, it's quite light. If I hold it for an hour, I might feel really tired. If I hold it for a day, my 9 will be unable to stand it, making me drop the glass to the 10 . In each case, the weight of the glass doesn't 11 , but the longer I hold it, the heavier it feels to me."As most of us students agreed, she said, " 12 worries, failures, and problems are very much 13 this glass of water. Think about them for a little while and 14 happens. Think about them a bit 15 and you begin to feel bad. Think about them all day long, and you will feel you are weak. You can't do anything else until you drop them."A.sinceB.untilC.beforeD.afterA.finalB.firstC.pastD.next期末复习与测试3.4.5.6.7.8.9.10.11.12.13.14.15.A.look up B.look for C.look at D.look afterA.SoB.ThoughC.BecauseD.HoweverA.specialefulC.heavyD.clearA.questionsB.answersC.messagesD.reasonsA.askedB.repliedC.talkedD.suggestedA.how oftenB.how soonC.how muchD.how longA.legB.armC.headD.footA.floorB.doorC.windowD.wallA.leaveB.deleteC.changeD.shareA.OurB.YourC.TheirD.MyA.withB.fromC.aboutD.likeA.nothingB.anythingC.everythingD.somethingA.fasterB.longerC.harderD.slower四、语法填空(本大题共10小题,每小题1分,共10分)7.One day, when Henry was working in a restaurant, a snake suddenly appeared and bit (咬)his hand.A few days earlier the snake arrived from Asia in a box of 1 (watermelon). It climbed out and moved away."It suddenly bit me again. I threw (扔)it across the kitchen, and saw it was on a table."Henry 2 (quick) picked up his mobile phone and took a photo with it. Then the snake 3 (move) to the fridge.When Henry was trying to find the snake, his hand began to feel hurt (疼痛). He ran fast to hospital. As the doctors were checking him, it got even 4 (bad). But they could not help him 5 they did not know what kind of snake bit him.Suddenly Henry remembered 6 (take) the photo. The doctors sent the photo 7 a zoo.As soon as they learnt what kind of snake bit him, they gave Henry the right medicine, and he left hospital 8 next day.期末复习与测试"So 9 a snake bites you, take out your mobile phone or camera."says Henry. "The most important thing is to take 10 (it) photo, and show the photo to the doctors. Oh, but as you know, the snake won't smile!"五、首字母填空(本大题共10小题,每小题1分,共10分)8.This English a is difficult for me to read because there are many new words.9.My birthday is on the way. I'd like to invite some friends to c .10.My mother asked me to put those dirty clothes into the washing m .11.If you listen c you can understand what the teacher says in class.12.I broke my mum's favorite cup. That made her really a .13.Of the three movie theaters, the Screen City is the c to my home. It only takes 5 minutes.期末复习与测试14.There is something wrong with my t . I must see a dentist as soon as possible.15.Tina is t in singing. She can sing very well at a young age.ing your mobile phone while driving is very d .17.To welcome the New Year, the students are busy p the party for it at present.六、书面表达(本大题共1小题,共15分)18.假如你是李杰,最近收到外国好友Tony的电子邮件。

八年级上册数学期末试卷(含答案)

八年级上册数学期末试卷(含答案)

八年级上册数学期末试卷(含答案)题目一一辆汽车从甲地驶向乙地,每小时行驶60公里。

另一辆汽车从乙地往甲地驶来,每小时行驶80公里。

两车相距480公里时,开始同时驶向彼此。

问他们相遇需要多长时间?答案:要计算相遇的时间,我们可以找到两辆车每小时的相对速度,然后用总距离除以相对速度来计算时间。

两辆车的相对速度是60公里/小时 + 80公里/小时 = 140公里/小时。

所以,相遇需要的时间是480公里 ÷ 140公里/小时 = 3.43小时。

:要计算相遇的时间,我们可以找到两辆车每小时的相对速度,然后用总距离除以相对速度来计算时间。

两辆车的相对速度是60公里/小时 + 80公里/小时 = 140公里/小时。

所以,相遇需要的时间是480公里 ÷ 140公里/小时 = 3.43小时。

题目二小明有一批铅笔,小明将这些铅笔按每盒装12支进行包装,结果剩余2支铅笔。

如果按每盒装10支包装,会剩余8支铅笔。

问小明有多少支铅笔?答案:设小明有x支铅笔。

根据题目的描述,我们可以列出以下方程::设小明有x支铅笔。

根据题目的描述,我们可以列出以下方程:- x ≡ 2 (mod 12)- x ≡ 8 (mod 10)解这个方程组,可以用中国剩余定理。

将方程组转换为:- x ≡ 2 (mod 6)- x ≡ 3 (mod 10)根据中国剩余定理,我们可以得到:- x ≡ 17 (mod 30)所以小明有17支铅笔。

以上是八年级上册数学期末试卷的一部分题目和答案。

更多题目请参考试卷。

2023届四川省乐山市第五中学数学八年级第一学期期末达标测试试题含解析

2023届四川省乐山市第五中学数学八年级第一学期期末达标测试试题含解析

2022-2023学年八上数学期末模拟试卷注意事项:1.答卷前,考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。

用2B 铅笔将试卷类型(B )填涂在答题卡相应位置上。

将条形码粘贴在答题卡右上角"条形码粘贴处"。

2.作答选择题时,选出每小题答案后,用2B 铅笔把答题卡上对应题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案。

答案不能答在试题卷上。

3.非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新答案;不准使用铅笔和涂改液。

不按以上要求作答无效。

4.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(每小题3分,共30分)1.如图所示,AO CO 分别平分BAC ∠和,100ACB B ∠∠=︒,则AOC ∠的度数为( )A .120︒B .90︒C .140︒D .135︒ 2.若()()2 2? 3x x m x n x --=+-,则 m + n 的值为( ) A .4 B .8 C .-4 D .63.如图,在▱ABCD 中,BF 平分∠ABC ,交AD 于点F ,CE 平分∠BCD ,交AD 于点E ,若AB =6,EF =2,则BC 的长为( )A .8B .10C .12D .144.若x 2+mxy +4y 2是一个完全平方式,那么m 的值是( )A .±4B .﹣2C .±2D .45.下列图形中,是轴对称图形的是( )A .B .C .D .6.下列图案中,是轴对称图形的是( )A .B .C .D .7.如图是一个正方形,分成四部分,其面积分别是a 2,ab ,b 2,则原正方形的边长是( )A .a 2+b 2B .a+bC .a ﹣bD .a 2﹣b 28.将0.000075用科学记数法表示为( )A .7.5×105B .7.5×10-5C .0.75×10-4D .75×10-69.△ABC 中,AB =3,AC =2,BC =a ,下列数轴中表示的a 的取值范围,正确的是( )A .B .C .D .10.要说明命题“若 a > b ,则 a >b ”是假命题,能举的一个反例是( ) A .3,2a b ==B .4,1a b ==-C .1,0a b ==D .1,2a b ==- 二、填空题(每小题3分,共24分)11.若分式11a a -+的值为0,则a 的值为________. 12.如图,小明与小敏玩跷跷板游戏,如果跷跷板的支点O (即跷跷板的中点)至地面的距离是50cm ,当小敏从水平位置CD 下降40cm 时,这时小明离地面的高度是___________.13.已知22139273m ⨯⨯=,求m =__________.14.圆周率π=3.1415926…精确到千分位的近似数是_____.15.如图,在ABC 中,DE 是AC 的垂直平分线.若3AE =,ABD △的周长为13,则ABC 的周长为______.16.已知多项式()()2221x x x x --=-+,那么我们把2x -和1x +称为22x x --的因式,小汪发现当2x =或1-时,多项式22x x --的值为1.若2325x ax +-有一个因式是x a -(a 为正数),那么a 的值为______,另一个因式为______.17.分解因式:2269ab a b --=_________________.18.计算:(13)0×10﹣1=_____. 三、解答题(共66分)19.(10分)如图,已知在△ABC 中,∠C=90°,AC<BC ,D 为BC 上一点,且到A ,B 两点的距离相等.(1) 用直尺和圆规,作出点D 的位置(不写作法,保留作图痕迹).(2) 连接AD ,若∠B=38°,求∠CAD 的度数.20.(6分)如图所示,CA =CD ,∠1=∠2,BC =EC ,求证:AB =DE .21.(6分)(1)根据所示的程序,求输出D 的化简结果;(2)当x与2、3可构成等腰三角形的三边时,求D的值.22.(8分)阅读下面的解答过程,求y2+4y+8的最小值.解:y2+4y+8=y2+4y+4+4=(y+2)2+4≥4,∵(y+2)2≥0即(y+2)2的最小值为0,∴y2+4y+8的最小值为4.仿照上面的解答过程,求m2+m+4的最小值和4﹣x2+2x的最大值.23.(8分)如图,在平面直角坐标系中,Rt△ABC的三个顶点坐标为A(-3,0),B(-3,-3),C(-1,-3)(1)求Rt△ABC的面积;(2)在图中作出△ABC关于x轴对称的图形△DEF,并写出D,E,F的坐标.24.(8分)如图,在△ABC中,AB=AC,点D在AB边上,点D到点A的距离与点D 到点C的距离相等.(1)利用尺规作图作出点D,不写作法但保留作图痕迹.(2)若△ABC的底边长5,周长为21,求△BCD的周长.25.(10分)矩形ABCD 中68AB cm BC cm AE ==,,平分BAC ∠交BC 于E CF ,平分ACD ∠交AD 于F .(1)说明四边形AECF 为平行四边形;(2)求四边形AECF 的面积.26.(10分)已知某一次函数的图象如图所示.(1)求这个一次函数的解析式.(2)请直接..写出该直线关于y 轴对称的直线解析式.参考答案一、选择题(每小题3分,共30分)1、C【分析】首先根据三角形的内角和求出∠BAC 、∠BCA 的度数和,然后根据三角形的角平分线的定义,用∠BAC 、∠BCA 的度数和除以2,求出∠OAC ,∠OCA 的度数和,最后根据三角形的内角和可求出∠AOC 的度数.【详解】解:∵∠B=100°,∴∠BAC+∠BCA =180°-∠B=180°-100°=80°,又∵AO 平分∠BAC ,CO 平分∠BCA ,∴∠OAC+∠OCA =12(∠BAC+∠BCA )=40°, ∴∠AOC=180°-(∠OAC+∠OCA )=180°-40°=140°.故答案为:C .【点睛】此题主要考查了三角形内角和定理,以及三角形角平分线的定义,解答此题的关键是求出∠OAC ,∠OCA 的度数和.2、A【分析】利用多项式乘以多项式法则计算,根据多项式相等的条件求出m 与n 的值即可.【详解】由()()()222333x x m x n x x n x n --=+-=+--, 可得23n -=-,3m n -=-,解得: 1n =,3m =.∴314m n +=+=,故选:A .【点睛】本题考查了多项式乘以多项式的计算,根据多项式相等的条件求出m 与n 的值是解题的关键.3、B【解析】试题分析:根据平行四边形的性质可知AB=CD ,AD∥BC,AD=BC ,然后根据平行线的性质和角平分线的性质可知AB=AF ,DE=CD ,因此可知AF+DE=AD+EF=2AB=12,解得AD=BC=12-2=10.故选B.点睛:此题主要考查了平行四边形的性质和等腰三角形的性质,解题关键是把所求线段转化为题目中已知的线段,根据等量代换可求解.4、A【分析】先根据两平方项确定出这两个数,再根据完全平方公式的乘积二倍项即可确定m 的值.【详解】∵x 2+mxy +1y 2=x 2+mxy +(2y )2,∴mxy =±2x ×2y ,解得:m=±1.故选:A.【点睛】本题主要考查了完全平方式,根据平方项确定出这两个数是解题的关键.5、C【分析】根据轴对称图形的概念对各选项分析判断即可得解.【详解】解:A、不是轴对称图形,故本选项不符合题意;B、不是轴对称图形,故本选项不符合题意;C、是轴对称图形,故本选项符合题意;D、不是轴对称图形,故本选项不符合题意.故选:C.【点睛】本题考查了轴对称图形的概念,轴对称图形的关键是寻找对称轴,图形两部分折叠后可重合.6、D【分析】根据轴对称图形的定义逐项判断即得答案.【详解】解:A、不是轴对称图形,本选项不符合题意;B、不是轴对称图形,本选项不符合题意;C、不是轴对称图形,本选项不符合题意;D、是轴对称图形,本选项符合题意.故选:D.【点睛】本题考查的是轴对称图形的概念,属于基础概念题型,熟知轴对称图形的定义是关键.7、B【分析】四部分的面积和正好是大正方形的面积,根据面积公式可求得边长.【详解】解:∵a2+2ab+b2=(a+b)2,∴边长为a+b.故选B.考点:完全平方公式的几何背景.点评:本题考查了完全平方公式的几何意义,通过图形验证了完全平方公式,难易程度适中.8、B【解析】科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数.确定n 的值时,要看把原数变成a时,小数点移动了多少位,n的绝对值与小数点移动的位数相同.当原数绝对值>1时,n是正数;当原数的绝对值<1时,n是负数.【详解】0.000075=7.5×10-5.故选B.【点睛】此题考查科学记数法的表示方法.科学记数法的表示形式为a×10n的形式,其中1≤|a|<10,n为整数,表示时关键要正确确定a的值以及n的值.9、A【分析】首先根据三角形的三边关系确定a的取值范围,然后在数轴上表示即可.【详解】解:∵△ABC中,AB=3,AC=2,BC=a,∴1<a<5,∴A符合,故选:A.【点睛】本题主要考查了三角形三边关系的知识点,准确判断出第三边的取值范围,然后在数轴上进行表示,注意在数轴上表示的点为空心即可.10、D【分析】作为反例,要满足条件但不能得到结论,然后根据这个要求对各选项进行判断即可.【详解】解:A、a=3,b=2,满足a>b,且满足|a|>|b|,不能作为反例,故错误;B、a=4,b=-1,满足a>b,且满足|a|>|b|,不能作为反例,故错误;C、a=1,b=0;满足a>b,且满足|a|>|b|,不能作为反例,故错误;D、a=-1,b=-2,满足a>b,但不满足|a|>|b|,∴a=-1,b=-2能作为证明原命题是假命题的反例,故选D.【点睛】本题考查了命题与定理;熟记:要判断一个命题是假命题,举出一个反例就可以.二、填空题(每小题3分,共24分)11、1【分析】根据分式值为零的条件,分子为零且分母不为零,求解. 【详解】解:若分式11a a -+的值为0 ∴a-1=0且a+1≠0解得:a=1故答案为:1.【点睛】本题考查分式为零的条件,掌握分式值为零时,分子为零且分母不能为零是解题关键. 12、90cm【解析】试题解析:∵O 是CD 和FG 的中点,∴FO=OG ,CO=DO ,又∠FOC=∠GOD ,∴ΔFOC ≌ΔGOD ,∴FC=GD=40cm ,∴小明离地面的高度是:50+40=90cm.13、1【分析】根据幂的乘方可得293m m ,3273=,再根据同底数幂的乘法法则解答即可. 【详解】∵22139273m ⨯⨯=,即22321333m ,∴22321m ,解得8m =, 故答案为:1.【点睛】本题主要考查了幂的乘方与积的乘方以及同底数幂的乘法,熟练掌握幂的运算法则是解答本题的关键.14、3.1【解析】近似数π=3.1415926…精确到千分位,即是保留到千分位,由于千分位1后面的5大于4,故进1,得3.1.【详解】解:圆周率π=3.1415926…精确到千分位的近似数是3.1.故答案为3.1.【点睛】本题考查了近似数和精确度,精确到哪一位,就是对它后边的一位进行四舍五入. 15、19.【分析】由线段的垂直平分线的性质可得2,AC AE AD DC ==,从而可得答案. 【详解】解: DE 是AC 的垂直平分线.3AE =,26,,AC AE AD DC ∴===13,AB BD AD ++=ABC ∴的周长AB BC AC AB BD AD AC =++=+++13619.=+=故答案为:19.【点睛】本题考查的是线段的垂直平分线的性质,掌握线段的垂直平分线的性质是解题的关键. 16、1 35x +【分析】根据题意类比推出,若x a -是2325x ax +-的因式,那么即当x a =时,23250x ax +-=.将x a =代入,即可求出a 的值.注意题干要求a 为正数,再将求得的解代入原多项式,进行因式分解即可.【详解】∵x a -是2325x ax +-的因式,∴当x a =时,23250x ax +-=,即223250a a +-=,∴21a =,∴1a =±,∵a 为正数,∴1a =,∴2325x ax +-可化为2325x x +-,2325(1)(35)x x x x +-=-+∴另一个因式为()35+x .故答案为1;35x +【点睛】本题考查根据题意用类比法解题和因式分解的应用,注意题干中a 的取值为正数是关键.17、()23a b --【分析】提出负号后,再运用完全平方公式进行因式分解即可.【详解】2222269(96)(3)ab a b a ab b a b --=--+=--.故答案为:()23a b --.【点睛】此题主要考查了运用完全平方公式进行因式分解,熟练掌握完全平方公式的结构特征是解题的关键.18、110 【分析】先运用幂的运算法则对原式进行化简,然后再进行计算即可. 【详解】解:原式=1×110=110, 故答案为:110. 【点睛】本题考查了幂的相关运算法则,牢记除0外的任何数的0次幂都为1是解答本题的关键.三、解答题(共66分)19、(1)见解析;(2)∠CAD=14°【分析】(1)根据垂直平分线的画法找出点D ;(2)利用垂直平分线的性质求角度.【详解】解:(1)∵点D 到A 、B 两点距离相等,∴点D 在线段AB 的垂直平分线上,圆规的一端抵在A 点,用大于线段AB 一半的长度为半径画弧,再把圆规的一端抵在B 点,同样的操作,把这两个弧的交点连接起来就得到线段AB 的垂直平分线,与BC 的交点就是D 点,如图:点D 为所作的点;(2)∵由垂直平分线的性质可知AD=BD ,∴38DAB B ∠=∠=︒,∵90C ∠=︒,∴90CAB B ∠+∠=︒,∴90903852CAB B ∠=︒-∠=︒-︒=︒,∴523814CAD CAB DAB ∠=∠-∠=︒-︒=︒.【点睛】本题考查垂直平分线的性质和作图方法,解题的关键是掌握利用尺规画垂直平分线的方法以及利用垂直平分线的性质求角度.20、答案见解析.【分析】由∠1=∠2可得∠ACB =∠DCE ,再结合已知条件不难证明△ACB ≌△DCE , 即可证明AB =DE .【详解】证明:∵∠1=∠2,∴∠ACB =∠DCE ,∵在△ACB 和△DCE 中,CA CD ACB DCE BC EC =⎧⎪∠=∠⎨⎪=⎩,∴△ACB ≌△DCE ,∴AB =DE .21、(1)D=22x x -;(2)D=1.【分析】(1)根据运算程序列出算式,先对括号内的分式进行通分相加,把除法转化为乘法,计算乘法即可化简;(2)先求出x 的值,然后代入计算,即可得到答案.【详解】解:(1)D=22214()244x x x x x x x x +---÷•--+ =22(2)(2)(1)(2)(2)4x x x x x x x x x +----⨯•-- =224(2)(2)4x x x x x x --••-- =22x x -;(2)由题意得,x=2或x=1,当x=2时,能使原分式中的分母为0,分式无意义,∴当x=1时,则D=2223233x x -=-⨯=;【点睛】此题主要考查了方程解的定义和分式的运算,此类题型的特点是:利用方程解的定义找到相等关系,再把所求的代数式化简后整理出所找到的相等关系的形式,再把此相等关系整体代入所求代数式,即可求出代数式的值.22、154; 5 【分析】多项式配方后,根据完全平方式恒大于等于0,即可求出最小值;多项式配方后,根据完全平方式恒大于等于0,即可求出最大值.【详解】解:(1)m 2+m+4=(m+12)2+154, ∵(m+12)2≥0, ∴(m+12)2+154≥154.则m 2+m+4的最小值是154; ()224215x x x -+=--+,∵()21x --≤0,∴()215x --+≤5,∴最大值是5.【点睛】本题考查了配方法的应用,熟练掌握完全平方公式是解决本题的关键.23、(1)3;(2)作图见解析;D (-3,0),E (-3,3),F (-1,3).【分析】(1)直接根据三角形的面积公式求解即可;(2)先找出△ABC 各顶点关于x 轴对称的对应点,然后顺次连接各点即可.【详解】解:(1)S △ABC=12AB×BC=12×3×2=3; (2)所画图形如下所示,其中△DEF 即为所求,D ,E ,F 的坐标分别为:D (-3,0),E (-3,3),F (-1,3).【点睛】本题考查三角形的面积公式及轴对称变换作图的知识,解题关键是找出各关键点关于x轴的对应点,难度一般24、(1)作图见解析;(2)△CDB的周长为1.【分析】(1)根据垂直平分线的性质可得:线段垂直平分线的点到线段两端点距离相等,作点D到点A的距离与点D到点C的距离相等,即作线段AC的垂直平分线与AB的交点即为点D.(2)根据(1)可得DE垂直平分线线段AC,继而可得AD=DC,因此△CDB的周长=BC+BD+CD=BC+BD+AD=BC+AB,根据AB+AC+BC=21,BC=5,可得AB=AC=8,因此△CDB的周长为1.【详解】解:(1)点D如图所示,(2)∵DE垂直平分线线段AC,∴AD=DC,∴△CDB的周长=BC+BD+CD=BC+BD+AD=BC+AB,∵AB+AC+BC=21,BC=5,∴AB=AC=8,∴△CDB的周长为1.【点睛】本题主要考查线段垂直平分线的作法和线段垂直平分线的性质,解决本题的关键是要熟练掌握线段垂直平分线的作法和性质.25、(1)见解析;(2)30cm2【解析】试题分析:(1)由四边形ABCD是矩形可得AD∥BC(即AF∥CE),AB∥CD,由此可得∠BAC=∠ACD,结合AE平分∠BAC,CF平分∠ACD可得∠EAC=∠FCA,即可得到AE∥CF,从而可得四边形AECF是平行四边形;(2)如图,过点E作EO⊥AC于点O,结合∠B=90°及AE平方∠BAC可得EO=EB,证Rt△ABE≌Rt△AOE可得AO=AB=6,在Rt△ABC中由勾股定理易得AC=10,从而可得OC=4,设CE=x,则EO=BE=BC-CE=8-x,这样在Rt△OEC中由勾股定理建立方程,解方程即可求得CE的值,这样就可求出四边形AECF的面积了.试题解析:(1)∵四边形ABCD 是矩形,∴AD ∥BC (即AF ∥CE ),AB ∥CD ,∴∠BAC=∠ACD ,又∵AE 平分∠BAC ,CF 平分∠ACD ,∴∠EAC=∠FCA ,∴AE ∥CF ,∴四边形AECF 是平行四边形;(2)过点E 作EO ⊥AC 于点O ,∵∠B=90°,AE 平分∠BAC ,∴EO=BO ,∵AE=AE ,∴Rt △ABE ≌Rt △AOE ,∴AO=AB=6,∵在Rt △ABC ,AC=226810+=,∴OC=AC-AO=4(cm ),设CE=x ,则EO=BE=BC-CE=8-x ,∴在Rt △OEC 中由勾股定理可得:222(8)4x x -+=,解得:5x =,∴EC=5,∴S 四边形AECF=CE·AB=5×6=30(cm 2).点睛:本题第2小题的解题关键是:通过作EO ⊥AC 于点O ,证得EO=BE ,AO=AB ,即可在Rt △CEO 中由勾股定理建立方程解得CE 的长,这样就可由S 平行四边形AECF =CE·AB 来求出其面积了.26、(1)332y x =-+;(2)332y x =+ 【分析】(1)用待定系数法即可求解;(2)先找到(2,0)关于y 轴的对称点,然后利用待定系数法即可求解.【详解】解:(1)设一次函数的解析式为:y=kx+b据图可知:直线经过(0,3)和(2,0)两点∴3002bk b=+⎧⎨=+⎩解得:332bk=⎧⎪⎨=-⎪⎩∴一次函数的解析式为:332y x=-+(2)(2,0)关于y轴的对称点为(-2,0)设一次函数的解析式为:y=mx+n直线经过(0,3)和(-2,0)两点∴3002nm n=+⎧⎨=-+⎩解得:323mn⎧=⎪⎨⎪=⎩该直线关于y轴对称的直线解析式为:332y x=+【点睛】本题主要考查待定系数法求一次函数的解析式,掌握待定系数法是解题的关键.。

新疆乌鲁木齐市八年级上学期英语期末测试卷(含答案)

新疆乌鲁木齐市八年级上学期英语期末测试卷(含答案)

新疆乌鲁木齐市八年级上学期英语期末测试卷(含答案)考试时间:100 分钟满分:100 分考试范围:unit1-unit10第Ⅰ卷(选择题共65 分)一、听力部分(共20 小题,每题 1 分,共计20 分)A . 听句子,选出相应的图片, 每个句子读两遍。

(每小题一分, 共5 分)1. 2. 3. 4. 5.B.听句子,选择相应的答语,每个句子读两遍。

(每小题一分, 共5 分)6.A. They're my classmates. B. They're very serious. C. We study together.7.A. Yes, I’d love to.B. With my friends. C. Do you think so?8.A. A talk show. B. Listening to music. C. I’m afraid not.9.A. It is too far. B. Three shoe shops. C. Almost every day.10.A. Enjoyable. B. Georgetown. C. September.C.听对话,选择正确的答案,每段对话读两遍。

(每小题一分, 共5 分)11.How old is Clare?A. 10.B. 12.C. 15.12.What is Peter’s plan for tonight?A. Eating out.B. Shopping online.C. Doing the dishes. 13.What gift did Chloe give Mary?A. A bag.B. A hat.C. A T-shirt.14.Who danced the best at the party?A. John.B. Nelly.C. Nelly’s mom.15.What is the woman?A. A teacher.B. A guide.C. A writer.D. 听短文,请根据短文内容,从题中所给的A、B、C 三个选项中选出最佳选项。

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初二上学期期末测试题(一)I. 请从第II栏中找出第I栏各单词的英语解释。

(5分)I II1. loudly A. door or gate2. entrance B. more than3. dishonest C. in a loud voice4. over D. not honest5. boring E. uninterestingII. 单项选择。

(10分)6. He is getting ________ to hear the ________ words.A. boring; boringB. bored; boringC. bored; boredD. boring; bored7. I think Maths is ________ of all my subjects.A. much difficult oneB. difficult oneC. most difficult oneD. the most difficult one8. Li Ming spends a lot of time ________ some sports every day.A. on doingB. doC. to doD. in doing9. We will climb the hill if it ________ tomorrow.A. doesn't rainB. won't rainC. not rainsD. is not going to rain10. It rained; ________ the football match was postponed (延期).A. becauseB. orC. thereforeD. butIII. 根据句意用括号内所给动词的适当形式填空。

(10分)11. Can I have something ________ (drink)?12. How far ________ John ________(live) from his school?13. What ________ he (do) next Sunday?14. Many soldiers ________ (lose) their lives in that battle (战役).15. I heard them ________(sing) the popular song in the next room.IV. 同义句转换,每空一词。

(10分)16. a. Why not go there by bike?b.________ ________ ________ there by bike?17. a. Kate looks like her father.b. Kate and her father ________ ________ ________.18. a. I like playing volleyball best.b. Volleyball is ________ ________ ________.19. a. I don't think learning French is useful.b. I think learning French ________ ________.20. a. Get up quickly, and you can catch the early bus.b. ________ you ________ ________ ________ quickly, you will miss the early bus. V. 完成句子,每空一词。

(10分)21. 咱们俩合用这间卧室好吗?Will you please ________ the bedroom ________me?22. 林涛不如我跑得快。

Lin Tao doesn't run ________ ________ ________ me.23. 你能就如何学习英语给我提些建议吗?Can you give me ________ ________ ________ how to learn English?24. 我们在一起交谈总是过得很愉快。

We always ________ ________ ________ ________ talking to each other.25. 美国英语和英国英语有所不同。

American English is quite ________ ________ British English.VI. 完形填空。

(10分)根据文章意思和所给首字母提示填空。

Is it p________(26) to send a letter to someone anywhere in the world without putting a s________(27) on it? It is easy to do so. Using c________(28) you can send e-mail quickly and easily. If you have an e-mail a________(29), you can write, send and receive messages.E-mail is the most inexpensive way to communicate(沟通) with your f________(30). You can sendm________(31) at any time of day or night to people all over the world without paying for a long-distance call. You can send the s________ (32) message to fifty people or more. It doesn't m (33) if your friends are in bed when you send e-mail to them, or you are seeing a f________(34) at the cinema when they send e-mail back. Many schools give e-mail addresses to their s________(35). E-mail addresses are becoming popular.VII. 阅读理解。

(10分)根据文章内容判断正(T) 误(F)。

April Fools' Day is on April 1st. People can play jokes on others on this special day. If you succeed, you usually laugh and say "April Fool!" The person fooled by you laughs too, and he will not be angry with you.Mother's Day is on the second Sunday of May. It's a day to thank mothers. On that day mothers usually get flowers and cards from their children. Fathers and children do the housework so that mothers can have a good rest.Easter Day falls on the first Sunday after the full moon which is on or after March 21st. It's also called Easter Sunday. It is said that on that day Jesus Christ comes back to life. Many people go to church and children often get presents such as toy rabbits.Thanksgiving Day is on the fourth Thursday in November. It's a day when people give thanks for the good things in life. Usually families get together and have a big dinner.Christmas Day comes on December 25th. It's the most important festival in a year. The beautiful things are everywhere. People exchange presents, send Christmas cards and visit friends.36. You can play jokes on others on April Fools'Day.37. Mother's Day is on the second Saturday in May.38. Easter Day is always on March 21st.39. People usually have a big dinner with their families on Thanksgiving Day.40. Fathers must do the housework on Mother's Day.VIII. 书面表达。

(15分)假设周宁是你最要好的朋友,下面是其个人简介:相貌:高个,英俊学习:功课很好,擅长英语,口语流利爱好:喜欢踢足球,是校队队员,崇拜贝克汉姆梦想:成为一名出色的足球运动员性格:很随和(easygoing),容易相处根据上面所提供的材料以My Best Friend为题写一篇80-100词的短文。

上学期期末测试题(一)参考答案I. 1-5 CADBEII. 6-10 BDDACIII. 11. to drink 12. does, live 13. is, going to do / will, do 14. lost 15. singingIV. 16.What about going 17. look the same 18. my favourite sport 19. is useless 20. If, don't get upV. 21. share, with 22. as fast as 23. some advice on 24. have a great/good time25. different fromVI. 26. possible 27. stamp 28. computers 29. address 30. friends 31. messages32. same 33. matter 34. film 35. studentsVII. 36-40 TFFTFVIII. One possible version:My Best FriendI have a best friend named Zhou Ning. Zhou Ning is a tall and handsome boy. Zhou Ning does well in his subjects. He is good at English. His spoken English is very fluent.Zhou Ning likes sports very much. He likes playing football best. He is on our school football team. Beckham is his favourite football player. His dream is to be a famous football player.Zhou Ning is very easygoing and friendly. He often helps others. Dear readers, do you want to make friends with Zhou Ning?。

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