江苏省泗洪县新星城南学校2020-2021学年八年级上学期第一次阶段性测试模拟考试英语试题
江苏省泗洪县新星城南学校【最新】八年级上学期第一次阶段性测试生物试题
江苏省泗洪县新星城南学校【最新】八年级上学期第一次阶段性测试生物试题学校:___________姓名:___________班级:___________考号:___________一、单选题1.如图表示人的血液中血浆、血细胞和血小板三者之间的关系,甲、乙、丙依次是()A.血小板、血细胞、血浆B.血细胞、血浆、血小板C.血浆、血小板、血细胞D.红细胞、白细胞、血小板2.在解剖猪的心脏时,如果你找到一根血管与心脏壁最厚的腔相连,那么你找到的血管和腔分别是()A.上腔静脉、右心房B.肺动脉、右心室C.主动脉、左心室D.主动脉、左心房3.小王的手指不慎划破出血,血液中与止血和避免发炎有关的成分分别是()A.血浆、血小板B.血小板、白细胞C.白细胞、血浆D.红细胞、血浆4.抢救大面积烧伤病人和严重贫血病人时,应该分别输给他()A.鲜血和红细胞B.血浆和红细胞C.血浆和白细胞D.鲜血和白细胞5.在光学显微镜下一般不易观察到血小板的原因是()A.血小板数量最少B.血小板体积太小C.血小板形状不规则D.血小板没有细胞核6.人若由于意外事故受伤,损伤了动脉要比损伤静脉危险得多,原因是()A.动脉内血液压力高,血流速度快B.动脉内血液含养料和氧丰富C.动脉内血液含较多的白细胞D.动脉管壁厚,损伤后难修复7.判断心脏左右最简单的方法是()A.手捏心房壁B.将心脏切开C.向心脏内灌水D.手捏心室壁8.下列有关血液各组成成分功能的说法中,错误的是()A.血小板—止血、凝血B.红细胞—运输血红蛋白C.白细胞—吞噬病菌D.血浆—运载血细胞、运输养料和废物9.一个科学兴趣小组做解剖猪心脏的实验时,针对如图所示的心脏解剖结构,以下四位同学作出的判断正确的是( )A.①为左心房B.①与②间存在房室瓣C.④为肺静脉D.③为右心室10.安静时长跑运动员的心脏活动表现为()A.心率较慢,心脏收缩力强B.心率较快,心脏收缩力强C.心率较慢,心脏收缩力弱D.心率较快,心脏收缩力弱11.如图是心脏结构模式图,其中D处流动的血液是()A.含氧较多的动脉血B.含氧较少的动脉血C.含氧较多的静脉血D.含氧较少的静脉血12.关于献血和输血,下列说法正确的是()A.我国提倡义务献血B.输血时应以输入同型血为原则C.只要是身体健康的人都可以献血D.一个健康的成年人一次献血400~800mL是不会影响健康的13.下图分别代表人体的三种类型的血管,箭头代表血管内血液流动方向,关于这三种血管的描述,正确的是:()A.1是动脉血管,里面流的一定是动脉血B.2是静脉血管,里面流的一定是静脉血C.3是毛细血管,其内的血流速度比静脉中的快D.3是毛细血管,原因是血管内的红细胞单行通过14.在血液循环过程中,能够运输二氧化碳的是()A.血小板B.白细胞C.红细胞D.血浆和红细胞15.心脏有房室瓣、动脉瓣,保证血液流动的方向( )A.心室→心房→静脉B.心房→心室→静脉C.心室→心房→动脉D.心房→心室→动脉16.某B型血的患者需要输入大量的血,下列哪种你认为最适合?()A.A型B.B型C.O型D.B型或O型17.图是在显微镜下观察到的人血涂片,下列分析正确的是()A.细胞①的数量高于正常值,很可能是身体有了炎症B.细胞③能释放与血液凝固有关的物质C.细胞③因富含血红蛋白而呈红色D.细胞②不能用来做DNA亲子鉴定18.与同一级别的动脉相比,静脉的主要特征是()①管壁较厚②管壁较薄③弹性大④弹性小⑤管腔大⑥管腔小⑦管内血流速度快⑧管内血流速度慢⑨不具瓣膜⑩常具瓣膜A.①③⑤⑦⑨B.②④⑥⑧⑩C.①③⑥⑦⑨D.②④⑤⑧⑩19.如下图,将新鲜的血液分别放入A、B、C、D四支试管中,其中A、B试管中加入抗凝剂,C、D试管中不加任何物质,静置24小时后,其中正确的图示是()A.B.C.D.20.某人的血压记录数据为11 /7千帕,由此可知不正确的是()A.此人患有低血压B.此人血压不正常C.此人血压是18千帕D.此人收缩压是11千帕,舒张压是7千帕21.图为人体某处的血管结构和血流方向示意图,下列有关说法正确的A.若B为消化道壁毛细血管,则A内流静脉血,C内流静脉血B.若B为肾小球。
精品 江苏省2020-2021学年八年级上 含答案
二、填空题(每小题ຫໍສະໝຸດ 分,共24分)9.如图,在3×3的正方形网格中,∠1+∠2=_______度.
第9题第10题第11题
10.如图, , 和 , 和 是对应点, 、 、 在同一直线上,且 , ,则 的长为________.
11.如图所示,AB=AC,AD=AE,∠BAC=∠DAE,∠1=20°,∠2=25°,则∠3=__.
一、单选题(每小题3分,共24分)
1.D2.D3.D4.D5.B6.D7.C8.C
二、填空题(每小题3分,共30分)
9.9010. 11.45°12.613.100°
14.5种15.9016.5或417.25°18.2
三、解答题(8+8+8+8+10+10+10+10+12+12=96分)
19.解:∵CD:DB=3:5,
(1)求证:FC=AD;
(2)求AB的长.
27.在 中, 垂直平分 ,分别交 、 于点 、 , 垂直平分 ,分别交 , 于点 、 .
⑴如图①,若 ,求 的度数;
⑵如图②,若 ,求 的度数;
⑶若 ,直接写出用 表示 大小的代数式.
28.如图,在长方形 中, =6 , 10,点 从点 出发,以2 /秒的速度沿 向点 运动,设点 的运动时间为 秒:
A.28°B.59°C.60°D.62°
第5题第6题第7题
6.一个正方形的对称轴有()条.
A.1B.2C.3D.4
7.如图,点A、B、C都在6×6的方格纸的格点上,若该方格纸上还有一格点D,使得格点A、B、C、D能组成一个轴对称图形,则满足条件的格点D的个数有()
2020-20201学年苏科版八年级数学上册第一次阶段性测试含答案
八年级数学第一次阶段性测试(试卷总分150分测试时间120分钟)命题:马月彪校对:王益龙一、选择题(每小题3分,共30分)1.下列长度的三条线段能组成三角形的是()A.2,3,4 B.3,6,11 C.4,6,10 D.5,8,14 2.如果n边形的内角和是它外角和的3倍,则n等于()A.6 B.7 C.8 D.93.等腰三角形一个角的度数为50°,则顶角的度数为()A.50°B.80°C.65°D.50°或80°4.如图,某同学把一块三角形的玻璃打碎成三片,现在他要到玻璃店去配一块完全一样形状的玻璃.那么最省事的办法是带()A.带①去B.带②去C.带③去D.带①②去5.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°6.如图,AD为∠BAC的平分线,添加下列条件后,不能证明△ABD≌△ACD的是()A.∠B=∠C B.∠BDA=∠CDA C.BD=CD D.AB=AC7.下列语句中,正确的是()A.等腰三角形底边上的中线就是底边上的垂直平分线B.等腰三角形的对称轴是底边上的高C.一条线段可看作是以它的垂直平分线为对称轴的轴对称图形D.等腰三角形的对称轴就是顶角平分线8.如图,点B、C、E在同一条直线上,△ABC与△CDE都是等边三角形,则下列结论不一定成立的是()A.△ACE≌△BCD B.△BGC≌△AFC C.△DCG≌△ECF D.△ADB≌△CEA9.如图,△ABC中,点D在BC上,△ACD和△ABD面积相等,线段AD是三角形的().A.高B.角平分线C.中线D.无法确定10.如图,四边形ABCD中,∠BAD=125°,∠B=∠D=90°,在BC、CD上分别找一点M、N,使△AMN周长最小时,则∠AMN+∠ANM的度数为()A.130° B.120°C.110°D.125°二、填空题(11—13每题3分,14—18题每题4分,共29分)11.点P(-2,3)关于x轴的对称点P′的坐标为。
江苏省泗洪县新星城南学校2020-2021学年八年级上学期第一次阶段性测试模拟考试物理试题
2020-2021学年度第一次阶段性测试模拟考试八年级物理试卷(分值:100分时间:100分钟)一、选择题(共15题,每题2分,共计30分)1.以下措施中,无法使气体液化的是()A.使气体温度降低到足够低B.压缩气体体积并降低气体温度C.压缩气体的体积D.增大气体体积并升高气体温度2.以下活动中,用来探究声音产生原因的是()A.用大小不同的力敲鼓B.将发声的音叉触及面颊C.将发声手机置于密闭瓶内并抽气D.用硬卡片在梳齿上快划、慢划3.正在拉二胡的一位同学不断用手指去控制琴弦,这样做的目的是()A.阻止琴弦振动发声B.为了获得更好的音色C.为了获得更大的响度D.使二胡发出不同的音调4.下列关于声现象的描述及其解释正确的是()A.“公共场所不要大声喧哗”是要求人们在公共场所说话,音调要放低些B.“闻其声知其人”的依据是不同人的声音,其音色不同C.“不敢高声语,恐惊天上人”中的“高”指声音的频率高D.“余音绕梁,三日不绝”是描述声音的响度大5.在下列做法中,能在传播过程中有效减弱噪声的是()A.给摩托车安装消声器B.高架桥旁边安装隔音板C.佩戴防噪声耳罩D.禁止汽车鸣笛6.如图所示,下列说法正确的是()A.人发声频率范围是20﹣20000Hz B.人发声的音调比蝙蝠高C.狗不能听到超声波D.大象发声频率不在蝙蝠听觉频率范围内7.一刻度均匀的温度计放在冰水混合物中时,示数为5℃;测一标准大气压下沸水的温度时,示数为85℃.若用它来测得某液体的温度为49℃时,该液体的实际温度应为()A.55℃B.61.25℃C.44℃D.64℃8.下图所示,温度计的使用情况中,正确的是()A.B.C.D.9.把冰水混合物拿到温度在零摄氏度以下的房间里,在冰不断增加的过程中,冰水混合物的温度()A.保持不变B.降低C.升高D.无法确定10.如图甲所示的是小明同学在“探究水沸腾时温度变化特点”时的实验装置,如图乙所示的是根据实验数据绘制的温度随时间变化的图象,下列说法中正确的是()A.在组装如图甲所示的装置时应按自上而下的顺序组装B.水的沸点为98℃,实验时的环境大气压小于一个标准大气压C.水沸腾前吸收热量温度升高,沸腾时不吸收热量温度不变D.实验中若只减少加热的水的质量,水将推迟时间沸腾11.把烧红的铁块放到冷水中,会听到“滋”的响声,并看到冒出大量的白气。
2020-2021学年八年级上学期第一次阶段性测验数学试题36
江苏省无锡市积余中学2020-2021学年八年级上学期第一次阶段性测验数学试题学校:___________姓名:___________班级:___________考号:___________一、单选题1.在以下绿色食品、回收、节能、节水四个标志中,是轴对称图形的是( ) A . B . C . D . 2.如图,下列条件中,不能证明△ABD ≌△ACD 的是( )A .AB =AC ,BD =CDB .∠B =∠C ,∠BAD =∠CAD C .∠B =∠C ,BD =CD D .∠ADB =∠ADC ,DB =DC 3.在联欢会上,有A 、B 、C 三名选手站在一个三角形的三个顶点位置上,他们在玩抢凳子游戏,要求在他们中间放一个木凳,谁先抢到凳子谁获胜,为使游戏公平,则凳子应放的最适当的位置是在ABC 的( )A .三边中线的交点B .三条角平分线的交点C .三边中垂线的交点D .三边上高所在直线的交点 4.如图,△ABC 中,AB=5,AC=6,BC=4,边AB 的垂直平分线交AC 于点D ,则△BDC 的周长是( )A .8B .9C .10D .115.如图,ABC 和A B C '''关于直线l 对称,下列结论中不正确的有( )(1)ABC A B C '''≅;(2)BAC B AC '''∠=∠;(3)直线l 垂直平分CC ';(4)直线BC 和B C ''的交点不一定在直线l 上.A .4个B .3个C .2个D .1个6.如图,AD 是△ABC 的角平分线,DF ⊥AB ,垂足为F ,DE =DG ,△ADG 和△AED 的面积分别为40和28,则△EDF 的面积为( )A .12B .6C .7D .8二、填空题 7.如图,35A ∠=︒,65C '∠=︒,ABC 与A B C '''关于直线l 对称,则∠B=______.8.小明站在河岸边看见水中的自己胸前球衣的号码是,则实际的号码为____.9.如图,在△ABC 中,∠C=90°,AD 平分∠BAC 交BC 于点D ,若BC=7,BD=4,则点D 到AB 的距离为________.10.如图是4×4正方形网络,其中已有3个小方格涂成了黑色.现在要从其余13个白色小方格中选出一个也涂成黑色的图形成为轴对称图形,这样的白色小方格有_____个.11.工人师傅常用角尺平分一个任意角.做法如下:如图,∠AOB 是一个任意角,在边OA ,OB 上分别取OM =ON ,移动角尺,使角尺两边相同的刻度分别与M ,N 重合.则过角尺顶点C 的射线OC 便是∠AOB 的平分线。
2020-2021学年八年级上学期第一次阶段性测试数学试题09
江苏省镇江市江南学校2020-2021学年八年级上学期第一次阶段性测试数学试题学校:___________姓名:___________班级:___________考号:___________一、填空题1.已知△ABC≌△DEF,点A与点D.点B与点E分别是对应顶点,∠A=48°,∠B=52°,AC=5 则∠E=___________,DF=___________,∠F=___________.2.星期天小华去书店买书时,从镜子内看到背后墙上普通时钟的时针(粗)与分针(细)的位置如图所示,此时时针表示的时间是.(按12小时制填写)3.如图,△ABC≌△CDA,则AB与CD的位置关系是_____.4.如图,己知∠1=∠2,AC=AD,还需要添加__________(只需写出一个满足条件即可),就能使△ABC≌△AED。
5.如图,将一张长方形纸片沿对角线AC折叠后,点D落在点E处,与BC交于点F,图中全等三角形(包含△ADC)对数有___________对。
6.如图,在△ABC中,DE是AC的垂直平分线,AE=2cm.△ABD的周长为12cm,则△ABC的周长是__________cm .7.在直角△ABC中,∠C=90°,AD平分∠BAC交BC于点D,若CD=4,则点D到斜边AB的距离为▲ .8.如图,点D为边AB的中点,DE∥BC,将△ABC沿线段DE折叠,使点A落在点F 处,若∠B=50°,则∠EDF=_______,∠BDF=_______,若AB=10cm,则FD=________cm.9.如图:在△ABC中,AD是∠BAC的平分线,DE⊥AC于E,DF⊥AB于F,且FB=CE,则下列结论:①DE=DF,②AE=AF,③BD=CD,④AD⊥BC.其中正确的有___________ (填序号).10.如图,∠C=90°,AC=8,BC=3,线段PQ=AB,P、Q两点分别在AC和过点A且垂直于AC的射线AX上运动,问P点运动到AP=_________时,才能使ΔABC与ΔAPQ 全等.二、单选题11.下列图形(含阴影部分)中,属于轴对称图形的有( )A.1个B.2个C.3个D.4个12.在△ABC和△A′B′C′中,AB= A′B′,∠B=∠B′,补充条件后仍不一定保证△ABC≌△A′B′C′,则补充的这个条件是( )A.BC= B′C′B.AC= A′C′C.∠A=∠A′D.∠C=∠C′13.如图所示,是一块三角形的草坪,现要在草坪上建一凉亭供大家休息,要使凉亭到草坪三条边的距离相等,凉亭的位置应选在()A.△ABC的三条中线的交点B.△ABC三边的中垂线的交点C.△ABC三条角平分线的交点D.△ABC三条高所在直线的交点. 14.将一张正方形纸片按如图1,图2所示的方向对折,然后沿图3中的虚线剪裁得到图4,将图4的纸片展开铺平,再得到的图案是()A.B.C. D.15.如图的2×4的正方形网格中,△ABC的顶点都在小正方形的格点上,这样的三角形称为格点三角形,在网格中与△ABC成轴对称的格点三角形一共有()A .2个B .3个C .4个D .5个16.如图所示,在△ABC 中,∠A=90°,BD 平分∠ABC ,AD=2cm ,AB+BC=8,S △ABC =( )C BA .8B .4C .2D .1三、解答题17.作图题(1)如图:已知∠AOB 和线段CD ,求作一点P ,使PC=PD ,并且点P 到∠AOB 的两边距离相等(尺规作图....,不写作法,保留作图痕迹,写出结论);(2)如图:在长度为1个单位长度的小正方形组成的正方形网格中,点A 、B 、C 在小正方形的顶点上.①在图中画出与关于直线l 成轴对称的△A′B′C′;②线段CC′被直线l _________;③△ABC 的面积为_________;④在直线l 上找一点P ,使PB+PC 的长最短.18.已知:如图,AB AD =,AC AE =,BAD CAE ∠=∠.求证:BC DE =.19.如图,点E 、F 在BC 上,BE =CF ,∠A =∠D ,∠B =∠C ,AF 与DE 交于点O .(1) AB 与DC 相等吗?请说明理由;(2)求证:OE=OF20.如图,在△ABC 中,BC 边上的垂直平分线DE 交BC 于点D ,交AC 于点E ,△ABC 的周长为18厘米,△ABE 的周长为10厘米,求BD 的长.21.如图:已知△ACB 、△ECD 都是等腰直角三角形,且C 在AD 上,AE 的延长线与BD 交于P ,请你猜想AE 与BD 的关系,并证明你的猜想.22.如图1,已知∠ACB =90°,AC =BC ,BD ⊥DE ,AE ⊥DE ,垂足分别为D 、E .(这几何模型具备“一线三直角”)如下图1:(1)①请你证明:△ACE ≌△CBD ;②若AE =3,BD =5,求DE 的长;(2)迁移:如图2:在等腰Rt △ABC 中,且∠C =90°,CD =2,BD =3,D 、E 分别是边BC,AC上的点,将DE绕点D顺时针旋转90°,点E刚好落在边AB上的点F处,则CE=.(不要求写过程)23.如图①:在四边形ABCD中,AB=AD,∠BAD=120°,∠B=ADC=90°,E、F分别是BC,CD上的点,且∠EAF=60°,探究图中线段BE,EF,FD之间的数量关系.(1)小王同学探究此问题的方法是:延长FD到点G,使DG=BE,连接AG,先证明△ABE≌△ADG,再证明△AEF≌△AGF,即可得出BE,EF,FD之间的数量关系,他的结论应是____________.象上面这样有公共顶点,锐角等于较大角的一半,且组成这个较大角的两边相等的几何模型称为半角模型.(2)拓展如图②,若在四边形ABCD中,,AB=AD,∠B+∠D=180°,E、F分别是BC,CD上的点,且∠EAF=12∠BAD,则BE,EF,FD之间的数量关系是________________.请证明你的结论.(3)实际应用如图③,在某次军事演习中,舰艇甲在指挥中心(O处)北偏西35°的A处,舰艇乙在指挥中心南偏东75°的B处,,且两舰艇到指挥中心的距离相等接到行动指令后,舰艇甲向正东方向以60海里/小时的速度前进,舰艇乙沿北偏东50°的方向以80海里小时的速度前进,1.2小时后,指挥中心观测到甲、乙两舰艇分别到达E,F处,且两舰艇之间的夹角为65°,试求此时两舰艇之间的距离是_____________海里(直接写出答案).参考答案1.52°,5,80°【分析】先在△ABC中,由∠A=48°, ∠B=52°,结合三角形内角和等于180°,可求∠C,再利用全等三角形的对应角相等,可求∠E、DF.【详解】∵∠A=48°, ∠B=52°, ∴∠C=180°-48°-52°=80°,又∵△ABC≌△DEF, ∴AC=DF=5, ∠E=∠B=52°.故答案为(1)52°;(2)5 ;(3)80°.【点睛】本题利用了全等三角形的性质、三角形内角和定理,正确找对对应关系式是解题的关键. 2.下午1:30【分析】此题考查镜面反射的基本知识,注意与实际问题的结合.【详解】根据镜面效应可得:现在的时间为1时30分.故答案为下午1:30【点睛】考点:镜面效应,解决此类习题时候,注意与现实生活结合,学以致用.3.AB∥CD【解析】【分析】根据全等三角形的性质得出边和角的关系,进一步可得到AB与CD的关系即可得到答案. 【详解】因为△ABC≌△CDA,则∠ACD=∠BAC,所以AB∥CD,故答案为AB∥CD.【点睛】本题考查了全等三角形的性质的应用.解题的关键是根据三角形全等推出平行四边形,要熟练掌握并会灵活运用.4.∠C=∠D或∠B=∠E或AB=AE.【解析】【分析】因为∠1=∠2,所以可得∠BAC=∠EAD.即在两个三角形中,有一角一边对应相等,根据全等三角形的判定方法选择添加条件.【详解】∵∠1=∠2,∴∠1+∠BAE=∠2+∠BAE,即∠BAC=∠EAD.①若加∠C=∠D,则可运用ASA判定△ABC≌△AED;②若加∠B=∠E,则可运用AAS判定△ABC≌△AED;③若加AB=AE,则可运用SAS判定△ABC≌△AED.故答案可为:∠C=∠D或∠B=∠E或AB=AE.【点睛】本题考查了全等三角形的判定,熟练掌握判定方法是解题的关键.5.4对【解析】【分析】根据折叠方式可得: △ADC≌△AEC;根据矩形的性质,可得△ADC≌△ABC;则△AEC≌△ABC、△ABF≌△CEF.【详解】∵AC为折线,∴△ADC≌△AEC,∴CD=CE,AD=AE, ∠DAC=∠EAC, ∠D=∠E, ∠DCA=∠ECA,∵四边形ABCD为长方形纸片,∴AB=CD,AD=BC,由此可得△ADC≌△ABC、△AEC≌△ABC、△ABF≌△CEF.故答案为:4.【点睛】本题考查了图形折叠的性质和全等三角形的判定,做题时要从已知开始结合已知条件与判定方法,由易到难逐个寻找.6.16【分析】首先由DE是AC的垂直平分线,可得AD=CD,AC=4cm;然后由△ABD的周长为12cm,即可求得AB+BC=12cm,即可求解.【详解】∵DE是AC的垂直平分线,∴AD=CD,AC=2AE=2×2=4(cm),∵△ABD的周长为12cm,∴AB+BD+AD=AB+BD+CD=AB+BC=12cm,∴△ABC的周长为:AB+BC+AC=12+4=16(cm).【点睛】本题考查了线段垂直平分线的性质,进行线段的等量代换是正确解答本题的关键.7.4【解析】作DE⊥AB,则DE即为所求,∵∠C=90°,AD平分∠BAC交BC于点D,∴CD=DE(角的平分线上的点到角的两边的距离相等).∵CD=4,∴DE=4.8.50°80° 5【解析】【分析】根据过三角形一边的中点且平行于另一边的直线必平分第三边可得E是AC的中点,进而得到DE是△ABC的中位线,DE∥BC,再根据两直线平行,同位角相等可得∠ADE=∠B ,根据翻折变换的性质可得∠ADE=∠EDF ,然后根据平角等于180°列式计算即可得解;根据线段中点的定义求出AD,再根据翻折的性质可得FD=AD.【详解】点D为边AB的中点, DE∥BC,∴E是AC的中点,∴DE是△ABC的中位线,∵DE∥BC,∴∠ADE=∠B=50°,由翻折的性质得, ∠ADE=∠EDF=50°,∴∠BDF=180°-∠ADE-∠EDF=180°-50°-50°=80°,∵AB=10cm,点D是AB的中点,∴AD=12AB=12×10=5cm,由翻折的性质得,FD=AD=5cm.故答案为50°,80°,5.【点睛】本题考查了翻折变换的性质,三角形的中位线平行于第三边并且等于第三边的一半,熟记定理和性质是解题的关键.9.①②③④【解析】【分析】由AD是∠BAC的平分线,DE⊥AC于E,DF⊥AB于F,结合公共边AD,可证得△ADF≌△ADE,根据全等三角形的性质再结合FB=CE,依次分析个小题即可.【详解】∵AD是∠BAC的平分线,∴∠BAD=∠CAD,∵DE⊥AC,DF⊥AB,∴∠AFD=∠AED=90°,∵AD=AD,∴△ADF≌△ADE,∴DE=DF,AE=AF,∵FB=CE,∴AB=AC,。
2020-2021学年八年级上学期第一次阶段性测验数学试题
(2)在(1)的条件下,结合你所画的图形,直接写出四边形A1B1C1D1的面积.
18.如图,在 中, .
用圆规和直尺在AC上作点P,使点P到A、B的距离相等 保留作图痕迹,不写作法和证明
当满足 的点P到AB、BC的距离相等时,ห้องสมุดไป่ตู้ 的度数.
19.如图,BO平分∠CBA,CO平分∠ACB,且MN∥BC,若AB=12,△AMN的周长为29,求AC的长.
20.如图,在△ABC中,DM,EN分别垂直平分AC和BC,交AB于M,N两点,DM与EN相交于点F.
(1)若△CMN的周长为15cm,求AB的长;
(2)若∠MFN=70°,求∠MCN的度数.
【详解】
解:∵凉亭到草坪三条边的距离相等,
∴凉亭选择△ABC三条角平分线的交点.
故选:C.
【点睛】
本题主要考查的是角平分线的性质在实际生活中的应用.主要利用了利用了角平分线上的点到角两边的距离相等.
4.B
【解析】
试题分析:∵AB=AC,
A.BF=EFB.DE=EFC.∠EFC=45°D.∠BEF=∠CBE
7.如图,将一张长方形纸片ABCD沿AE折叠,若∠BAD′=28°,则∠AED′等于( )
A.28°B.59°C.66°D.68°
8.图①是一块边长为1,周长记为 的正三角形(三边相等的三角形)纸板,沿图①的底边剪去一块边长为 的正三角形纸板后得到图②,然后沿同一底边依次剪去一块更小的正三角形纸板(即其边长为前一块被剪如图掉正三角形纸板边长的 )后,得图③,④,,记第n(n 3)块纸板的周长为 ,则 的值为 ( )
2018-2019学年江苏省宿迁市泗洪县新星中学城南分校八年级(上)第一次段考物理试卷
2018-2019学年江苏省宿迁市泗洪县新星中学城南分校八年级(上)第一次段考物理试卷一.选择题(每题2分,共30分)1.(2分)小华到医院就诊,医生用听诊器听他的心脏搏动情况(如图)。
听诊器的主要作用是()A.增大响度B.提高频率C.减小响度D.改变音色2.(2分)如图所示,琴师在使用前会对二胡进行调音,下列对调音时采用的做法的解释正确的是()A.旋转琴轴,使弦拉得紧一些,是为了改变音色B.旋转琴轴,使弦拉得紧一些,是为了改变音调C.将琴枕上移一些,是为了改变音色D.换一根更细一些的琴弦,是为了改变响度3.(2分)如表列出了相同条件下不同物质的密度及声音在其中传播的速度,根据表提供的信息,可以得出的结论是()物质空气氧气铝铁铅物质的密度(kg/m3) 1.29 1.432700790011300声音传播的速度(m/s)330316642059602160 A.声音传播速度随着物质密度的增大而增大B.声音传播速度随着物质密度的增大而减小C.声音在金属中传播的速度大于它在气体中传播的速度D.声音在金属中传播的速度随着金属密度的增大而增大4.(2分)用录音机把自己朗读或唱歌的声音录下来,再播放。
同学们听没有什么意外,自己听总感到别扭,觉得不象自己的声音,主要原因是()A.自己听自己的声音,和听录音机声音,两种声音传播的途径不同B.录音机录音时使声音的音调发生了变化C.录音机的录音效果差,声音录制后失真D.录音机录音时使声音的音色发生了变化5.(2分)一场大雪过后人们感到外面万籁俱寂,究其原因你认为正确的是()A.可能是大雪过后行驶的车辆减少,噪声减少B.可能是大雪蓬松且多孔,对噪声有吸收作用C.可能是大雪过后大地银装素裹,噪声被反射D.可能是大雪过后气温较低,噪声传播速度变慢6.(2分)经超声波探伤仪检测,刚竣工的三峡大坝坝体无一结构性裂缝,创造了人类水利建筑史上的奇迹。
探伤仪发出的超声波无法为人耳所听到,原因是超声波的()A.速度太快B.响度太小C.频率太高D.频率太低7.(2分)用体温计测得甲的体温是38℃,若没有甩过,又用它去依次测量乙和丙的体温,已知他们的实际体温是37.5℃和38.5℃,那么两次测完后记下的数据是()A.37.5℃和38.5℃B.37℃和38.5℃C.38℃和38.5℃D.38℃和38℃8.(2分)夏天从冰箱里取出瓶装矿泉水,会发现瓶的外壁“出汗”,这是因为()A.水会从瓶内慢慢渗出B.空气中的水蒸气遇冷液化C.瓶外壁的水不断汽化D.瓶周围的空气不断凝华9.(2分)在卫生间里洗过热水澡后,室内的玻璃镜面变得模糊不清,过了一段时间镜面又变得清晰起来,镜面上发生的这两种现象的物态变化情况是()A.先汽化,后液化B.先液化,后汽化C.只有液化D.只有汽化10.(2分)坎儿井是新疆古老的地下水输水方式之一,之所以在地下输水,是为了()A.利于灌溉B.减少蒸发C.利用地势自流D.节约成本11.(2分)使用冷暖空调的密闭轿车玻璃上,无论盛夏还是严冬,都有小水珠凝结。
宿迁市泗洪县八年级上学期化学第一次月考试卷(五四学制)
宿迁市泗洪县八年级上学期化学第一次月考试卷(五四学制)姓名:________ 班级:________ 成绩:________一、选择题(每题1分,共19分) (共19题;共19分)1. (1分) (2019九上·荔湾期末) 空气是一种宝贵的自然资源。
下列有关空气的说法错误的是A . 空气中的氧气能支持燃烧,可做燃料B . 空气中各成份的含量不是恒定不变的C . 空气中的有害气体和烟尘对空气造成污染D . 空气中的稀有气体都没有颜色、没有气味,化学性质很不活泼2. (1分) (2015九上·曲靖期中) 化学的研究对象是()A . 实验B . 运动C . 物质D . 道理3. (1分)(2016·巴中) 下列生活中的变化过程只发生物理变化的是()A . 从铝土矿中提取金属铝B . 秸秆、杂草、粪便等在沼气池中发酵制得甲烷C . 二氧化碳气体经降温、加压制得干冰D . 排放到空气中的二氧化硫形成酸雨4. (1分) (2016九上·龙沙期末) 下列变化中,属于物理变化的是()A . 铁生锈B . 水灌溉农田C . 酸雨浸蚀大理石雕像D . 动植物呼吸5. (1分) (2019八上·文登期中) 北京时间10月5日下午5点45分,2016年诺贝尔化学奖揭晓,获奖领域是“分子机器的设计与合成”,这是世界上最小的机器.下列有关分子的认识错误的是()A . 食物腐败:分子发生了变化B . 热胀冷缩:分子大小随温度的变化而变化C . 切洋葱时呛眼:分子在不断的运动D . 氢气可燃氧气助燃:构成它们的分子不同6. (1分)中科院的全超导的“人造太阳”——托克马克核聚变试验装置的调试运行成功,使我国在该领域的研究处于世界前列。
氘和氚是核聚变的原料(氘、氚原子核内都只有1个质子,但含不同数目的中子),聚变发生后,氘、氚原子核转变为氦原子核。
根据以上叙述,下列说法正确的是()A . 核聚变是化学变化B . 氘原子和氚原子属于不同元素C . 氘原子和氚原子是氢的两种同位素D . 氘原子和氚原子的相对原子质量相同7. (1分)下列哪一变化与其他变化本质不同的是()A . 分离液态空气B . 电灯发光放热C . 食物腐烂D . 金刚石加工成钻石8. (1分) 2011年“国际化学年”的宗旨是纪念化学所取得的成就以及对人类文明的贡献。
【八年级】2021年10月初二上册数学第一次阶段性测试卷(苏科版)
【八年级】2021年10月初二上册数学第一次阶段性测试卷(苏科版)第一次阶段性测试初二数学试卷2021年10月一、(每题2分,共20分)1.下面图案中是轴对称图形的有()a、 1 B.2 C.3 D.42.如图,将一块正方形纸片沿对角线折叠一次,然后在得到的三角形的三个角上各挖去一个圆洞,最后将正方形纸片展开,得到的图案是()3.在RT中△ 美国广播公司,∠ C=90,周长为60,斜边与直角边之比为13:5,则三角形三条边的长度为()a.5、4、3;b.13、12、5;c.10、8、6;d.26、24、104.在以下情况组中,无法解释△ 基础知识≌ △ DEF是()a.ab=de,∠b=∠e,∠c=∠fb.ac=df,bc=ef,∠a=∠dc、ab=de∠a=∠D∠b=∠ed.ab=de,bc=ef,ac=df5.如图,已知ab∥cd,ab=cd,ae=fd,则图中的全等三角形有()a、 1对B.2对C.3对D.4对6.如图,ac=ad,bc=bd,则有()a、 CD垂直对分abb。
ab垂直对分CDc.ab与cd互相垂直平分d.cd平分∠acb7.如图所示,Op平分∠ AOB、paoa和PBOB,垂直脚分别为a和B。
在以下结论中,()a.pa=pbb.po平分∠apbc.oa=obd.ab垂直平分op8.等腰△ ABC,ab=AC,一侧的中心线BD将三角形的周长分为15和12部分,那么等腰三角形底部的长度为()a.7b.11c.7或11d.7或109.如图所示,D和E是等边线BC边上的三等分点△ AB C,O是一个关键点△ ABC,还有△ ode是一个等边三角形,那么图中等腰三角形的数量是()a.4个b.5个c.6个d.7个10.如图所示,直线L1和L2在点a处相交,点B为直线外的点。
在直线L1和L2上找到一个点C,使其△ ABC是等腰三角形。
满足条件的C点是()a.2个b.4个c.6个d.8个二、问题(每个空白2分,共16分)12.等腰三角形的一内角为40°,则它的底角为°.13.如图所示,∠ 1 = ∠ 2.使△ 阿布德≌ △ ACD,需要添加的一个条件是__________________14.一直角三角形两直角边长分别为8,15,则斜边长.15.等腰三角形的周长为16C,一边为6C,另一边的长度为____16.如图,在△abc中,e为边bc上一点,ed平分∠aeb,且ed⊥ab于d,△ace的周长为11c,ab=4c,则△abc的周长为__________c.17.如图所示,△ ABC,ab=AC,De是垂直平分的ab,be⊥ AC,EF=BF,那么∠ EFC=°18.如图,ad是△abc的角平分线,df⊥ab,垂足为f,de=dg,△adg和△aed的面积分别为50和39,则△edf的面积为.三、回答问题(共64分)19.(4分)作图题:在右图中画出△abc关于直线l的轴对称图形△a1b1c1.21.(6点)已知:如图所示,ad‖BC,O是BD,EF的中点⊥ BD在点O处,ad和BC分别在点E和f处相交求证:(1)△bof≌△doe;(2)de=df.22.(6分)如图所示△ 美国广播公司,∠ BAC=90°,ab=AC,D点在BC上,BD=Ba,E点在BC的延长线上,CE=ca。
八年级英语上学期第一次月考试卷
泗洪县第一实验学校八年级上学期调研测试(一)英语试卷第I卷听力部分一.根据所听句子,选出相应的图片,将序号ABCDE填在对应的图片下。
(5分)A B C D E1.___________2.____________3.____________4._____________5._____________二、根据你所听到的对话和问题,选出一个正确的答案。
(5分)( ) 6. A. At 4:00. B. At 3:00 C. At 4:30 D. At 5:00( ) 7. A. Do some house work. B. Do some homeworkC. Do lots of homework.D. He'll have nothing to do( ) 8. A. A big bird. B. A kite C. A model plane . D. A parrot .( ) 9. A. 50 yuan. B. 60 yuan . C. 70 yuan . D. 90 yuan .( )10.A. Because he can't dance at all. B. Because he doesnn't enjoy dancing.C. Because Kate doesn't like him.D. Because he will have lots of work to do. 三.听短文选择正确的答案。
(10分)( )11. It was the 65th birthday of his __________A. fatherB.motherC. grandmother( )12. The rich man wanted to give his mother a _____ present.A. strange(奇怪的)B. wonderfulC. common(普通的)( )13. At last, the rich man paid the bird for _____.A. $50,000B. $5,000C. $500( )14. The bird could talk in _____ languages and sing ____ famous songs.A. ten, twelveB. twenty, tenC. twelve, ten( )15. Why did the mother say "delicious" when the rich man asked about the bird?A. Because the bird was very smart.B. Because she ate the bird.C. Because the bird could cook meals.第II卷笔试部分(100分)一、选择填空。
江苏省泗阳县经济开发区2021-2021学年八年级英语上学期第一次月考试题 牛津版
2021—2021学年度第一学期八年级英语检测试题 试卷总分值120 分 考试时间100分钟 友情提醒:请将答案写在答卷纸上,否那么无效。
第一局部 选择题〔共75分〕 一、听力(每题1分,共20分) A .听对话答复下列问题 本局部共有10道小题,每道小题你将听到一段对话,每段对话听两遍。
在听每段对话前,你将有5秒钟的时间阅读题目,听完后你将有5秒钟时间选择你认为最适宜的答案。
( )1. Which animal does Mary like best? A. B. C. ( )2. Where is Mr. Green going? A. B. C. ( )3. Which kind of fruit is the cheapest? A. B. C.( )4. Who wants to know how to search the Internet? A. B. C.( )5. How many books does Sandy have?A. 5.B. 14.C. 19.( )6. What kind of music does Sam like better? 座位号 班 级 姓 名 考 场…………………………………装………………………………………订………………………………A . Rock music. B. American country music. C. Chinese pop music. ( )7. How often does the girl go to the sports club?A. Once a week.B. Twice a week.C. Three times a week. ( )8. When did Jim get to school this morning?A. At 7:00.B. At 7: 15.C. At 7:30.( )9. What is Millie’s school life l ike?A. It is interesting.B. It is busy.C. It is boring.( )10. Why can’t the girl watch the cartoons?A. Because her mother is working.B. Because her father is reading.C. Because her mother is sleeping.B.听一段对话,答复第11-12题。
2020-2021学年八年级上学期第一次素质调研考试数学试题
18.如图所示,AOB是一钢架,设∠AOB=α,为了使钢架更加坚固,需在其内部添加一些钢管EF,FG,GH…,添加的钢管长度都与OE相等,若最多能添加这样的钢管4根,则α的取值范围是___________.
14.如图,在3×3的正方形网格中,∠1+∠2=_______度.
15.如图,将△ABC沿过边上两点D,E的直线折叠后,使得点B与点A配合,若已知BE = 4 cm,DE = 3 cm,则△ABC的周长与△ADC的周长的差为________.
16.如图,△ABC中,∠ACB=90°,AC=BC,AE⊥CD于E,BD⊥CD于D,AE=5cm,BD=2cm,则DE的长为________.
24.如图,在△ABC和△DCB中,BA⊥CA于A,CD⊥BD于D,AC=BD,AC与BD相交于点O.
(1)求证:△ABC≌△DCB;
(2)若∠OBC=30°,求∠AOB的大小.
25.王强同学用10块高度都是2cm的相同长方体小木块,垒了两堵与地面垂直的木墙,木墙之间刚好可以放进一个等腰直角三角板 ,点C在DE上,点A和B分别与木墙的顶端重合,求两堵木墙之间的距离.
26.如图,在△ABC中,AB=AC,点P是底边BC的中点,PD⊥AB,PE⊥AC,BF⊥AC,垂足分别为点D、E、F.
(1)试说明PD与PE的关系.
(2)请证明PD+PE与BF的关系.
27.在△ABC中,∠ABC与∠ACB的平分线相交于点P.
(1)如图①,若∠BPC=α,则∠A=;(用α的代数式表示,请直接写出结论)
A. B.
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2020-2021学年度第一次阶段性测试模拟考试八年级英语(分值:120分时间:100分钟)第一部分听力一、听力。
(20分)A. 听对话回答问题.()1. Who is Jim's best friend?A. B. C.()2. What is the boy good at?A. B. C.()3. What will the two speakers do this weekend?A. B. C.()4. What is Kitty's trouble?A. B. C.()5. What time does Tom usually go to school every morning?A. 7: 00.B. 7: 30.C. 8: 00.()6. How old is Wilson?A. Eleven.B. Thirteen.C. Fifteen.()7. What is Lucy doing now?A. She is watching a film.B. She is doing her homework.C. She is cooking.()8. Why does Sam have few friends?A. Because he is careful.B. Because he is helpful.C. Because he is unhelpful. ()9. What's the man going to do first?A. Go out to dinner.B. Write a report.C. Go for a school trip. ()10. What can we learn about Linda's pencil box?A. It's bigger than Jim's pencil box.B. It's the same size as Jim's pencil box.C. It's smaller than Jim's pencil box.B. 听对话和短文回答问题. 听一段对话, 完成第11—12小题.()11. Where are they going?A. The Buddy Club.B. The Reading Club.C. The Art Club.()12. How many people are going together?A. 3.B. 4.C. 5.()()14. A. new B. true C. close()15. A. football B. basketball C. table tennis 听第二篇短文, 完成第16—20小题.()16. Why was Maya's teacher unhappy about her?A. She was late for school.B. She left her homework at home.C. She didn't finish her homework.()17. How did Maya and her brother go to school?A. By bus.B. On foot.C. By car.()18. What happened to Maya on her way home?A. She lost her books.B. She left her books on the bus.C. She dropped her books on the wet ground.()19. Why did Maya smile when she saw the writing homework?A. She thought it would be easy to write.B. Her brother would help her finish it.C. She and her brother would do it together.()20. What is the passage mainly about?A. How Abdul learnt to be nice to his sister.B. How Maya learnt to be thankful to her brother.C. How Maya and her brother learnt to help each other.第二部分二、单选题(共15小题;每小题1分, 满分15分)( ) 21. What _______honest girl! She is my _________best friend.A. a; theB. an; theC. a; /D. an; /( )22. Football in British English has the same meaning as ______ in American English.A.liftB. eraserC. soccerD. fall( )23. A good friend never _____ lies and says a bad word ____ anyone.A. tells; aboutB. says; aboutC. speaks; withD. tells; to ( )24. These children are ____ this year than they were last year.A. more tallB. more tallerC. very tallerD. much taller( ) 25. China is larger than ____ in Africa (非洲) .A. any other countryB. other countriesC. the other countryD. any country( )26. Mr Smith made Kitty ___ clean the classroom alone. This made her _____.A. to clean; sadB. clean; sadlyC. clean; unhappyD. cleaned; unhappy( )27. We don’t feel ________ when we are in his class. He isn’t a ________ man.A. bored; boredB. boring; boringC. bored; boringD. boring; bored( )28.---What’re you ________? ---My husband’s health problem _______me a lot.A. worrying; worriesB. worried about; worriesC. worried about; worries aboutD. worrying about; is worried about( )29. — ______ talk about the driving lesson? —Good idea!A.What aboutB. why notC. How aboutD. Why don’t( )30. Mr. Fat has _______ money than Mr. Thin, but he has _______ friends.A. more, fewerB. more, lessC. fewer, moreD. less, less( )31. After you discuss it ______ them, you may know ______ to do about it.A. with; howB. with; whatC. for; whatD. for; how( )32.---Mum, can I have something ______?---Oh, dear. You can only drink some water. There is _____ in the kitchen.A. to drink; nothing elseB. drinking; something elseC. to eat; something elseD. eating; nothing else( )33. --_______ do you go the Swimming Club a week? –Twice a week.A. How oftenB. How longC. How many timesD. How soon( )34. Nancy spent half an hour _______ the piano every day.A.to practice playingB. practicing playingC. practicing to playD. to practice to play( )35. ---What’s your father like? ---___________.A. He is a workerB. He is fine. Thank you.C. He likes playing basketballD. He is helpful and generous三、完形填空(共15小题;每小题1分, 满分15分)Miss Hunt is a beautiful girl. Her father 36 two years ago and her mother made a terrible mistake and was sent to the prison(监狱). She began to live a 37 life. When she 38 her middle school, she couldn’t go on studying. Her uncle found a job for her. Mr Baker, a rich shopkeeper, hired(雇佣) her. Her work was to clean the rooms and sweep the floors. She tried her 39 and worked hard. Mrs Baker liked her and paid her 40 than the other cleaners.It was Sunday. Mr Baker was reading and Mrs Baker was watching TV in the sitting room. The girl 41 and said, “I’m42 , Mrs Baker. I have to tell you I can’t work for you any longer. I ...”It 43 Mr and Mrs Baker. The woman asked, “What makes you say that? Aren’t we44 to you?”“Yes, you are, madam,” the girl said.“Do you find a piece of45 work?” Mrs Baker asked.“No, I don’t,” Miss Hunt said,“46 I don’t think you trust(相信)me.”“No, you’re47 , Miss Hunt,” said Mr Baker. “I always think you are a48 girl. And I often leave my 49 in my office.”“It was true that you often left the keys in your office,” said the girl. “But I c ould use none of them to 50 the safe(保险箱)!”“Well,” said Mrs Baker. “You can go right now!”( )36. A.hurt B.died C.slept D.fell ( )37.A.boring B.happy C.easy D.hard ( )38.A.finished B.stopped C.end D.over ( )39.A.better B.good C.best D.well ( )40.A.much B.more C.little D.less ( )41.A.looked out B.came in C.jumped into D.ran away ( )42.A.glad B.happy C.pleased D.sorry ( )43.A.excited B.interested C.surprised D.worried ( )44.A.friend B.bad C.kind D.cold ( )45.A.bad B.better C.well D.badly ( )46.A.so B.if C.but D.or ( )47.A.wrong B.right C.real D.really ( )48.A.good B.terrible C.lazy D.forgetful ( )49.A.bags B.keys C.safe D.husband ( )50.A.find B.make C.close D.open四、阅读理解(共两节,满分35)第一节(共15小题;每小题2分, 满分30分)A( )51. If children want to watch new films, they should go to_______.A. 16 Yangtze RoadB. 89 North StreetC. 106 Green StreetD. 99 Brick Road( )52. If you dial(拨号) 66387901, you can_______.A. ask for some hotel informationB. do some shoppingC. have a good story timeD. get fast food in a restaurant( )53. You cannot get any information about_______ from the passage above.A. looking for a hospitalB. doing eye exercisesC. eating fast foodD. taking a taxiBWe each have a memory . That’s why we can still remember things after a long time. Some people have very good memories and they can easily learn many things by heart, but some people can only remember things when they say or do them again and again. Many of the great men of the world have got surprising memories.A good memory is a great help in learning a language. Everybody learns his mother language when he is a small child. He hears the sounds, remembers them and then he learns to speak. Some children are living with their parents in foreign countries. They can learn two languages as easily as one because they hear, remember and speak two languages every day. In school it is not so easy to learn a foreign language because the pupils have so little time for it, and they are busy with other subjects, too.But your memory will become better and better when you do more and more exercises.( )54.Why can some people easily learn many things by heart? Because _______.A.they always sleep very well B.they often eat good foodC.they read a lot of books D.they have very good memories( )55.When does everybody learn his mother language?A.At the age of six B.When he is a small childC.After he goes to school D.When he can read and work.( )56.Before a child can speak, he must ________.A.read and write B.think hardC.hear and remember the sounds D.make sentences( )57.Why is it not easy for the pupils to learn a foreign language? Because _______.A.they have no good memories B.they have no recordersC.they have too much time for it D.they are busy with other subjects( )58.Your memory will not become better __________.A.if you don’t have a lot of good food B.if you don’t do more and more exercisesC.if you don’t do morning exercises every day D.if you don’t get up earlyCMany teenagers feel that the most important people in their lives are their friends. They believe that their family members don’t know them as well as their friends do. In large families, it’s quite often for brothers and sisters to fight with each other and then they can only go to their friends for some ideas.It is very important for teenagers to have one good friend or a group of friends. Even when they are not with their friends, they usually spend a lot of time talking among(在……之间) them on the phone. This communication is very important in children’s growing up, because friends can discuss something. These things are difficult to say to their family members.However, parents often try to choose their children’s friends for them. Some parents even stop their children from meeting their good friends. Have you ever thought of the following questions? Who choose your friends? Do you choose your friends or your friends choose you? Have you got a good friend your parents don’t like? Your answers are welcome.( )59._________is very important to teenagers.A.To make friends B.CommunicationC.To stop meeting friends D.Both A and B( )60.When teenagers have something difficult to say to their parents, they usually_________.A.stay alone at home B.fight with their parentsC.discuss it with their friends D.go to their brothers and sisters for help( )61.The sentence “Your answers are welcome.”means“_________”.A.You are welcome to discuss the questions with us.B.We’ve got no idea, so your answers are welcome.C.Your answers are always right.D.You can give us all the right answers.( )62.Which of the following is the writer’s attitude(态度)?A.Parents should choose friends for their children.B.Children should choose everything they like.C.Parents should understand their children better.D.Teenagers should go to their friends for help.DJo was the first to wake up on Christmas morning. When her sisters were awake too, they all went own to the kitchen. Their mother wasn't there but Hannah, their servant, was."Your mother went out early, "she said. "A poor boy came to the door asking for food. She was sorry for him and she wanted to help him. She went to see his family. "While they were waiting for their mother to come back, the girls put their presents for her in a basket. Soon they heard the sound of a key in the front door."Mother's here!" cried Jo."Hide the basket behind the sofa! Quick!"Then they all rushed into the hall to greet their mother."Merry Christmas, Mother!" they cried."Merry Christmas, little daughters!" Mrs March said in her happy voice. She hugged them all and kissed them. Then she suddenly became very serious."Come and sit down, girls. I want to say something before we start breakfast. "They all sat down at the breakfast table and Mrs March continued."I went to see a poor woman this morning. Her name is Mrs Hummel. She lives near here in one room with her seven children. One of them is only a baby. They are cold and hungry because they don't have a fire or any food. The oldest boy Jack came to ask me for help. Girls, can we give them our breakfast as a Christmas present?"The sisters looked at the good food on the table. They were all hungry. For a minute nobody spoke.Then Jo said, "I'm so glad you came back before we started eating, Mother!"—From the Little Woman( )63.Where did the girls put their presents for their mother?A.In front of the door. B.In a basket. C.Behind the front door. D.On the sofa.( )64.Who is Mrs Hummel?A.Jack's mother B.Jo's mother C.Jo's servant D.Jack's sister( )65.According to the last sentence "I'm so glad you came back before we started eating, Mother!", what did Jo mean?A.She wanted to eat breakfast with their mother.B.She was happy to give the breakfast to the boy.C.She wanted their mother to come back.D.She was glad that it's time to eat breakfast.第二节(共5小题;每小题1分, 满分5分) 阅读下面短文, 从短文后的选项中选出可以填入空白处的最佳选项。