2018-2019学年南京市第一中学初中部7A期中考试word版

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2018~2019学年江苏南京江宁区初一上学期期中英语试卷第一学期(含答案)

2018~2019学年江苏南京江宁区初一上学期期中英语试卷第一学期(含答案)

2018~2019学年江苏南京江宁区初一上学期期中英语试卷第一学期一、单项填空(共15小题,每小题1分,满分15分)1. A.Good morning B.Good evening C.Good night D.Good afternoonI usually say " " to my parents first after I get up .2. A.不填 B.in C.on D.atWe have a football match autumn every year. We always have fun then.3. A.plays B.playing C.play D.is playing—Where is David?—He the computer games in his bedroom.4. A.Do B.Is C.Are D.Does— Peter walk to school every day?—No, he always goes to school by bus.5. A.age B.hobby C.subject D.team—Tom, what is your ?—I like playing football very much. I am on the school football team.6. A.How long B.How often C.How far D.How many— does your father go to the sports centre?—Once a week. He likes sports.7. A.opens B.is open C.is opening D.openThere is a new shop near our school and it for twelve hours a day .8.How do you read the letter group 'ea'in the word bread ?A./i:/B./ei:/C./e/D./I/9. A.sometimes B.seldom C.always D.neverMy cousin goes to bed early. That helps her get ready for a new day.10.A.fun B.students C.club D.butWhich of the underlined (划线) letters has a different sound (发音) from the other three?11.A./i:/ B./s/ C./d/ D./z/Which of the following is a vowel (元音)?12.A.OK B.biology C.only D.phoneWhich of the underlined letters has a different sound (发音) from the other three?13.A.look B.love C.looks D.luckWhich of the following word is pronounced (发音) /lʌk/?14.A.to feel sad B.so sad C.to feel happy D.so happy—I like swimming. It makes me . What about you?—Me too.15.A.Let me seeB.Have a good timeC.All the bestD.Pardon—I'll go to the park. The flower show there is wonderful.— .二、完形填空(共10小题,每小题1分,满分10分)16.There is a shopping centre near my home, so I often go there with my parents. Ittakes 1 about ten minutes. The shopping center is new and 2 . There are lots of great things there. There are many kinds of food and drinks. Many people go shopping there. 3 do many people come here to buy things? Do you know? Let me tell you. The1.2.3.4.5.6.7.8.9.10.things there are good and at a very great price (价格). I often buy some cakes 4 my best friend Linda. The workers there are nice and 5 . They often help us when we need help.My sister Mary has a yellow sweater. It's very nice. But it's too small. She wants 6 a new one. She goes to the shopping center 7 Sunday because she doesn't go to 8 that day. There are many nice and cheap clothes on sale (出售). They are in different 9 , such as (比如) red, black, red and blue. She likes a blue sweater very much, 10 it's too big. At last, she takes a green sweater for only 60 yuan.A.meC.himD.them A.oldB.bigC.shortD.sad A.WhatB.WhenC.WhyD.Where A.forB.onC.inD.of A.wellB.tiredC.interestingD.friendly A.showB.buyC.to showD.to buy A.onB.inC.atD.for A.shopB.homeC.centreD.school A.bagsB.placesC.colorsD.things A.and B.but C.or D.so三、阅读理解(共10小题,每小题1分,满分10分)17. A.once B.twice C.three times D.four times(1)A.Tuesday B.Friday C.Saturday D.Thursday(2) The Football ClubThe school football club wants new players!We have good players from the school team.They can help you enjoy the game.Wepractice for an hour every Friday and Saturday afternoon.Come for our school team.We have twenty tickets (票) for every class.Go to your PE teacher for the tickets before this Wednesday. Please wear your school clothes at the sports centre.Players of the Football Club practice a week.Students can get a ticket on this .18.A.Class OneB.Class TwoC.Class ThreeD.Class Four(1)A.eleven B.twelve C.thirteen D.fourteen(2)A.Beijing B.London C.Nanjing D.Shanghai(3)A.Daming B.Jenny C.Wang Hui D.Tony(4)Hello, everyone! I am Daming. I'm from Beijing, China. Beijing is a big city. I am not very talland my hair is short. Jenny is in my class. She's my friend. We often playtable tennis with Betty and Tony. Betty is in Class Three and Tony is in ClassFour.My name is Jenny. I am from London, England. I'm inClass One. Daming is my friend. We're twelve years old. Heis in my class. We are good friends, My best friend Sarah isalso in China. Now she studies in Nanjing. She is older than me. She is fourteen years old.Hi, everybody! My name is Wang Hui and I am Chinese. I come fromShanghai, but now I live in Beijing. I am thirteen years old. I am in Class Two,but Daming and Jenny are my friends.Daming is in .Jenny is years old.Which city is Wang Hui from?The underlined word "He " in Paragraph 2 refers to (所指) .19.Today is Danny's sixth birthday. He goes to see his friend, the dinosaur in the park. "Wouldyou like to come to my birthday party? " says Danny. "I'd like to", says the dinosaur. So they go to Danny's home together.On the way home, they pick up (接)many of Danny's friends. "Today I'm 100, 000, 000years old, " says the dinosaur, "How great! "The children and the dinosaur have a good time at the party. They put on party hats.Danny's parents give each child some ice cream. They give the dinosaur more. After eating, the dinosaur tells some interesting stories and the children enjoy them a lot."Here comes the birthday cake! " say the children. "What's your wish,Danny? ""I wish the dinosaur and I are together at a party again next year, "says Danny."I wish the same (相同)thing. " says the dinosaur. They blow out thecandles (蜡烛)together.A.at schoolB.at his homeC.in the parkD.at the dinosaur's home(1)A.B.C.D.(2)A.①②④③ B.②①④③ C.②④①③ D.②④③①(3)A.Danny and the dinosaurB.Danny and his friendsC.Danny has FunD.Danny's present(4)Danny has a birthday party .The dinosaur's wish is to .eat some ice cream next yearhave a birthday party with Danny next yearbe with Danny every daybe with all the children every dayWhat is the correct order of the following things?① The dinosaur tells interestinng stories.② The children and the dinosaur put on party hats.③ The children and the dinosaur make a wish.④ The children and the dinosaur eat ice cream.What's the best title (标题)for the passage?四、填空(共20小题,每小题1分,满分20分)20.(1)(2)(3)(4)(5)将下面方框中单词画线部分发音按音标归纳,并将单词填写到相应的横线上。

南京市联合体20182019学年度七年级上期中数学试题有答案

南京市联合体20182019学年度七年级上期中数学试题有答案

2021-2021学年度第一学期期中学情剖析试卷七年级数学本卷须知:1.本试卷共4页.全卷总分值100分.考试时间为100分钟.考生答题所有答在答题卡上,答在本试卷上无效.2.请仔细查对监考教师在答题卡上所粘贴条形码的姓名、考试证号能否与自己相切合,再将自己的姓名、准考据号用毫米黑色墨水署名笔填写在答题卡及本试卷上.3.答选择题一定用2B铅笔将答题卡上对应的答案标号涂黑.如需变动,请用橡皮擦洁净后,再选涂其余答案.答非选择题一定用毫米黑色墨水署名笔写在答题卡上的指定地点,在其余地点答题一律无效.4.作图一定用2B铅笔作答,并请加黑加粗,描绘清楚.一、选择题〔本大题共8小题,每题2分,共16分.在每题所给出的四个选项中,恰有一项为哪一项切合题目要求的,请将正确选项前的字母代号填涂在答题卡相应地点上〕.......1.比-1小2的数是〔▲〕.A.3B.1C.-2D.-32.把(-2)-(+3)-(-5)+(-4)一致为加法运算,正确的选项是〔▲〕.A.(-2)+(+3)+(-5)+(-4)B.(-2)+(-3)+(+5)+(-4)C.(-2)+(+3)+(+5)+(+4)D.(-2)+(-3)+(-5)+(+4)3.以下各组数中,数值相等的是〔▲〕.A.(-2)3和(-3)2B.-32和(-3)2C.-33和(-3)3D.-3×23和(-3×2)34.以下去括号正确的选项是〔▲〕.A.-2(a+b)=-2a+b B.-2(a+b)=-2a-bC.-2(a+b)=-2a-2b D.-2(a+b)=-2a+2b5.以低等式变形正确的选项是〔▲〕.A.假如mx=my,那么x=y B.假如︱x︱=︱y︱,那么x=y1C.假如-2x=8,那么x=-4D.假如x-2=y-2,那么x=y6.假定967×85=p,那么967×84的值可表示为〔▲〕.85A.p-967B.p-85C.p-1D.84p7.以下四种图案的地砖,要求灰、白两种颜色面积大概同样,那么下边最切合要求的是〔▲〕.AB CD8.以下四个数轴上的点A都表示数a,此中,必定知足︱a︱>2的是〔▲〕.A A A A-2a a-22a a2①②③④〔第8题〕A .①③B .②③C .①④D .②④二、填空〔每小 2分,共20分〕9.-1的相反数是▲,-1的倒数是 ▲.3310.比大小:- ▲ -〔填“>〞或“<〞或“=〞〕.11.式-42的系数是▲,次数是▲.πab12.研究说明,可燃冰是一种可代替石油的新式清能源,在我国某海疆已探明的可燃冰存量达150000000000m 3,此中数字150000000000 用科学数法可表示▲.13.数大将点A 移4个位度恰巧抵达原点,点A 表示的数是▲.14.“减去一个数,等于加上个数的相反数〞用字母能够表示 ▲ .15.假定5x 6y 2m 与-3x n+9y 6和是式,那么 n -m 的▲.16.假定 a -2=3,2 -4-5的▲.ba b17.一米的木棒,第 1次截去一半,第 2次截去剩下的一半,⋯⋯,这样截下去,第 ▲次截去后剩1下的小棒米.6418.假定a <0,b >0,在a +b ,a -b ,-a +b ,-a -b 中最大的是 ▲ .三、解答〔本大共8小,共64分.在答卷指定地区作答,解答写出文字明、明程或演算步〕19.〔共16分〕算:〔1〕(-8)+10-2+(-1); 〔2〕12-7×(-4)+8÷(-2);1 1 1 1 412〔3〕( +-)÷(-);〔4〕-1-1÷(-4).23618(+)×320.〔每3分,共6分〕化:1〕3x 2-2xy +y 2-3x 2+3xy ;21.〔5分〕先化,再求: 1此中a =-2,b =2.221〔2〕(7x -3xy )-6(x -3xy ).5(3a 2b -ab 2)-(ab 2+3a 2b ),22.〔每4分,共8分〕解方程:x+22x-3〔1〕2x+1=8-5x;〔2〕4-6=1.23.〔6分〕某市出租车的计价标准为:行驶行程不超出3km收费10元,超出3km的局部按每千米元收费.〔1〕某出租车行程为x km,假x>3km,那么该出租车驾驶员收到车资▲元(用含有x的代数式表示);定〔2〕一出租车企业坐落于东西向的宏运大道边,某驾驶员从企业出发,在宏运大道上连续接送4批客人,行驶行程记录以下(规定向东为正,向西为负,单位:km).第1批第2批第3批第4批52-4-12①送完第4批客人后,该出租车驾驶员在企业的▲边(填“东或西〞),距离企业▲km的地点;②在这过程中该出租车驾驶员共收到车资多少元?24.〔6分〕如图,长为50cm,宽为x cm的大长方形被切割为8小块,除暗影A,B外,其余6块是形状、大小完整同样的小长方形,其较短一边长为a cm.〔1〕从图可知,每个小长方形较长一边长是▲cm〔用含a的代数式表示〕.〔2〕求图中两块暗影A,B的周长和〔能够用含x的代数式表示〕.aBxA〔第24题〕25.〔8分〕定义☆运算察看以下运算:(+3)☆(+15)=+18(-14)☆(-7)=+21,(-2)☆(+14)=-16(+15)☆(-8)=-23,0☆(-15)=+15(+13)☆0=+13.〔1〕请你仔细思虑上述运算,概括☆运算的法那么:两数进行☆运算时,同号▲,异号▲.特别地,0和任何数进行☆运算,或任何数和0进行☆运算,▲.〔2〕计算:(+11)☆[0☆(-12)]=▲.〔3〕假定2×(2☆a)-1=3a,求a的值.26.〔9分〕【概括】〔1〕察看以下各式的大小关系:|-2|+|3|>|-2+3||-6|+|3|>|-6+3||-2|+|-3|=|-2-3||0|+|-8|=|0-8|概括:|a|+|b||a+b|〔用“>〞或“<〞或“=〞或“≥〞或“≤〞填空〕【应用】|m|+|n|=13,|m+n|=1,求m的值.〔2〕依据上题中得出的结论,假定【延长】〔3〕a、b、c知足什么条件时,|a|+|b|+|c|>|a+b+c|.2021-2021学年度第一学期七年级期中数学测试卷评分细那么一、〔每小2分,共16分〕号1 2 3 4 5 6 7 8答案DBCCDADB二、填空〔每小2分,共20分〕9.1,-310.>11.-4π,312.1.5×101113.4或-4314. a -b =a +(-b ) 15.-616.117.618.-a +b三、解答〔本大共 8小,共64 分〕19. 〔16分〕〔1〕解:原式=2-2+(-1)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 2分=0+(-1)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 3分=-1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分〔2〕解:原式=12-(-28)+(-4)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分12+28-4⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3分 36⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分1 1 1 1分〔3〕解:原式=(+-)×(-18)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯236=(-9)+(-6)-(-3)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3 分=- 12⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分3 1〔4〕解:原式=-1-2×3÷16⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分1 1=- 1-2×16⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3分=- 33⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分3220.〔6分〕〔1〕解:原式=3x 2-3x 2-2xy +3xy +y 2⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1分=xy +y 2⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3分〔2〕解:原式=7x 2-3xy -6x 2+2xy ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1分x 2-xy ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3分〔5分〕解:原式=15a 2b -5ab 2-ab 2-3a 2b ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1分=12a 2b -6ab 2⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 3分当a =-1,b =221212原式=12×〔-2〕×2-6×〔-2〕×2=6+12=18. ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯5分22. 〔8分〕1〕解:2x+5x=8-1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分7x=7⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3分x=1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分〔2〕解:3(x+2)-2(2x-3)=12⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1分3x+6-4x+6=12⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分-x=0⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3分x=0⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分23.〔6分〕〔1〕1.8(x-3)+10=x+⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分〔2〕①西;9⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分②+10++=⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯6分答:出租共收到元24.〔6分〕〔1〕〔50-3a〕⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分〔2〕2[50-3a+(x-3a)]+2[3a+x-(50-3a)]⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4分2(50+x-6a)+2(6a+x-50)4x⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯6分〔8分〕〔1〕同号两数运算取正号,并把相加;⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1分异号两数运算取号,并把相加⋯⋯⋯⋯⋯⋯⋯⋯2分等于个数的⋯⋯3分〔2〕23⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯5分〔3〕①当a=0,左=2×2-1=3,右=0,左≠右,因此a≠0;⋯⋯⋯⋯6分②当a0,2×(2+a)-1=3a,a=3;⋯⋯⋯⋯⋯⋯⋯⋯7分③当a0,2×(-2+a)-1=3a,a=-5⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯8分上所述,a3或-5注:自其,前后一致就算。

南京市第一中学2018-2019学年度第二学期期中调研试卷七年级语文(含答案)

南京市第一中学2018-2019学年度第二学期期中调研试卷七年级语文(含答案)

人的爱国情怀。
C.《卖油翁》的作者欧阳修,号醉翁,是唐宋八大家之一,唐代著名政治家、文学家。 D.《木兰诗》是一首叙事诗,富有北方民歌特点,风格刚健质朴。
5.关于《骆驼祥子》,下列说法有.误.的一项是(
)(3 分)
A.老舍擅长写人,《骆驼祥子》中,“脊背微俯,双手松松栊住车把,他活动利落,准确;看
不出急促而跑得很快,快而没有危险”,寥寥几笔就把样子灵活、稳键的形象刻画出来。
材料二:爱迪生做了 1600 多次耐热材料和 600 多种植物纤维的实验,才制造出第一个炭丝
灯泡,可以一次燃烧 45 个钟头。后来他在这基础上不断改良制造的方法,终于推出可以点燃
1200 小时的竹丝灯泡。

二(44 分) (―)阅读下面古诗,完成 8-9 题。(4 分)
阙题① [唐]刘慎虚 道由白云尽,春与青溪长。 时有落花至,远闻流水香。 闲门向山路,深柳读书堂。 幽映每②白日,清辉照衣裳。 【注】①“阙”同“缺”,此诗原题在流传过程中遗失。②每:每当。 8.白云深处,清溪岸边,山路蜿蜒,柳条掩映,体现了“读书堂”环境之“ ▲ ”。 (请用诗
南京市第一中学2018-2019学年度第二学期期中调研试卷
七年级语文
2019.04
(本试卷共 6 页,考试时间 120 分钟,满分 100 分)
一(26 分)
1.用正楷字或行楷字抄写下面的诗句。(4 分)
士别三日,刮目相待。
________________________ 2.根据原文填写诗句、作者或篇名。(9 分)
B.《骆驼祥子》不仅刻画了祥子的人物形象,而且还刻画了大胆泼辣而有些心理扭曲的小福子。
C.《骆驼祥子》中,刘四爷变卖了人和车厂的车外出享福,虎妞继承车厂的计划落空,只好向

精品解析:南京市第一中学2018-2019学年七年级第一学期期末试卷语文试题(解析版)

精品解析:南京市第一中学2018-2019学年七年级第一学期期末试卷语文试题(解析版)

2018-2019 学年一中七上语文期末考试一、积累运用1.请用正楷字或行楷字抄写下面的句子。

静以修身,俭以养德。

【答案】认真书写即可【解析】【详解】能用正楷工整、美观地书写即可。

2.根据原文填写诗句。

(1)_____,险躁则不能治性。

(诸葛亮《诫子书》)(2)_____,却话巴山夜雨时。

(李商隐《夜雨寄北》)(3)杨花落尽子规啼,_____。

(李白《闻王昌龄左迁龙标遥有此寄》)(4)水何澹澹,_____。

(曹操《观沧海》)(5)_____,我言秋日胜春朝。

(刘禹锡《秋词》)(6)僵卧孤村不自哀,_____。

(陆游《十一月四日风雨大作》)(7)河流大野犹嫌束,_____。

(谭嗣同《潼关》)(8)_____,切问而近思。

(《论语》)(9)峨眉山月半轮秋,_____。

(李白《峨眉山月歌》)(10)_____,但只要有这点精神,就是一个高尚的人,一个纯粹的人,一个有道德的人,一个脱离了低级趣味的人,一个有益于人民的人。

(毛泽东《纪念白求恩》)【答案】(1). 1)淫慢则不能励精;(2). (2)何当共剪西窗烛;(3). (3)闻道龙标过五溪;(4). (4)山岛竦峙;(5). (5)自古逢秋悲寂寥;(6). (6)尚思为国戍轮台;(7). (7)山入潼关不解平;(8). (8)博学而笃志;(9). (9)影入平羌江水流;(10). (10)一个人能力有大小。

【解析】【详解】本题都是机械的识记题,根据自己的识记积累,填出上下句即可,要注意“励”“窗”“道”“竦”“寥”“戍”“潼”“笃”“羌”等字的书写。

3.根据拼音写汉字或给加点字注音。

nüè待()滑jī()热忱.()琢.磨()【答案】(1). 虐;(2). 稽;(3). chén;(4). zuó/zhuó【解析】【详解】“虐待”的“虐”不要误写成“谑”;“滑稽”的“稽”不要误写成“嵇”;“ 忱” 应拼写成chén,不要拼成cén;“琢磨”的“琢”应有两个读音,“琢(zuó)磨(mo)”的意思是思索,考虑,“琢(zhuó)磨(mó)”的意思是雕刻和打磨(玉石)或加工使精美(指文章等)。

南京市建邺区2018~2019 学年第一学期期中试卷七年级英语(含答案)

南京市建邺区2018~2019 学年第一学期期中试卷七年级英语(含答案)

南京市建邺区2018--2019 学年第一学期期中试卷七年级英语一、听力(略)二、单项填空(共15小题;每小题1分,满分15分)请认真阅读下列各题,从题中所给的A, B, C, D四个选项中选出最佳答案,并在答题卡上将该项涂黑。

16.--- It is Miss Wang your art teacher?--- No, she teaches _______ biology.A.weB.ourC.you17.It’s said the film AvatorⅡ will come out _______ December 25, 2018.A.intB.onC.atD.for18.Andy is busy doing homework, so he _______ chats with his friends after class.A.alwaysuallyC.seldomD.often19.--- _______ do you go back to visit your grandparents?--- Every two weeks.A.How oftenB.How longC.How muchD.How far20.--- Do you often drink a glass of milk before you go to bed?--- _______. Milk can help me sleep well.A.No, I don’t.B.Of course not.C.Yes. I am.D.Of course.21.Kate, if you want to read the story book of Grimm’s Fairy Tales, you can _______the book from the school library.A.lendB.takeC.borrowD.carry22.--- _______?--- It's November 10th.A What day is it today B.What time is itC.What's the date todayD.How many times are there23.--- Please open the window, Daniel.--- _______? I can't hear you well.A.What B Pardon C Really D.All right24.--- Let's _______ football after school.--- I don't like it. How about going running with us?A.to playB.playingC.playD.to playing25.It's too late now, but I still have too much _______to do.A homework B. lessons C. exercises D subjects26.When Lisa goes for a holiday, she asks her parents to _______ her pet.A look for B. look at C. look around D.look after27.--- What's your sister like?--- _______.A.She likes watching TV.B.She's tall.C.She likes wearing glassesD.She is happy28.--- Why does Jacky study very hard?--- Because he hopes _______ in Nanjing University (大学) .A.to studyB.studyingC.him to studyD.he to study29.Which of the underlined part is pronounced differently (发音不同) from the otherthree?A.girlB.nurseC.wordD.walk30.--- -I will go to see the red maples (枫叶) in Qixia Mountain this weekend.--- _______.A.Have a good timeB. Thank youC.That's rightD.It doesn’t matter三、完形填空(共10小题;每小题1分,满分10 分)It is important for students to make a homework plan to do homework wellFirst, know ___31___ your teachers want you to do. Write your homework down in your notebook if you need to, and ask questions about your ___32___. if you really don't understand It's much easier to take a minute to ask the teacher in or after class than to think ___33___ all the night!Second, use any free time at school to ___34___ on your homework. schools have ___35___ rooms. It's ___36___ to play with your friends and classmates after class at school, but if you can do more homework at school, you'll have less to do at home in the ___37___.Third, adjust (调整) yourself. If you don't finish your homework at school, don'tworry. Just think ___38___ how much homework you have and what else is going on that day, and then plan your time. Most school students have between 1 and 1.5 ___39___ of homework a night. If it's not a hard homework day, you can ___40___ yourself more, or you'll have to say sorry to your game shows or films on TV.31. A. what B why C when D. how32. A plan B homework C. wish D. time33. A hard B easy C happy D. luck34.A. finish B.do C.learn D.work35.A. dining B meeting C.sports D.study36.A. sorry B.interesting C helpful D.important37.A. morning B.afternoon C.evening D.Weekend38.A. with B.for C.from D.about39.A. minutes B hours C.days D.weeks40.A help B.teach C.enjoy D.play四、阅读理解(共10小题;每小题1分,满分10 分)请认真阅读下列材料,从短文后各题所给A, B, C, D四个选项中选出最佳答案,并在答题卡上将该项涂黑。

南京市建邺区2018~2019 学年第一学期期中试卷七年级英语(含答案)

南京市建邺区2018~2019 学年第一学期期中试卷七年级英语(含答案)

南京市建邺区2018--2019 学年第一学期期中试卷七年级英语一、听力(略)二、单项填空(共15小题;每小题1分,满分15分)请认真阅读下列各题,从题中所给的A, B, C, D四个选项中选出最佳答案,并在答题卡上将该项涂黑。

16.--- It is Miss Wang your art teacher?--- No, she teaches _______ biology.A.weB.ourC.you17.It’s said the film AvatorⅡ will come out _______ December 25, 2018.A.intB.onC.atD.for18.Andy is busy doing homework, so he _______ chats with his friends after class.A.alwaysuallyC.seldomD.often19.--- _______ do you go back to visit your grandparents?--- Every two weeks.A.How oftenB.How longC.How muchD.How far20.--- Do you often drink a glass of milk before you go to bed?--- _______. Milk can help me sleep well.A.No, I don’t.B.Of course not.C.Yes. I am.D.Of course.21.Kate, if you want to read the story book of Grimm’s Fairy Tales, you can _______the book from the school library.A.lendB.takeC.borrowD.carry22.--- _______?--- It's November 10th.A What day is it today B.What time is itC.What's the date todayD.How many times are there23.--- Please open the window, Daniel.--- _______? I can't hear you well.A.What B Pardon C Really D.All right24.--- Let's _______ football after school.--- I don't like it. How about going running with us?A.to playB.playingC.playD.to playing25.It's too late now, but I still have too much _______to do.A homework B. lessons C. exercises D subjects26.When Lisa goes for a holiday, she asks her parents to _______ her pet.A look for B. look at C. look around D.look after27.--- What's your sister like?--- _______.A.She likes watching TV.B.She's tall.C.She likes wearing glassesD.She is happy28.--- Why does Jacky study very hard?--- Because he hopes _______ in Nanjing University (大学) .A.to studyB.studyingC.him to studyD.he to study29.Which of the underlined part is pronounced differently (发音不同) from the otherthree?A.girlB.nurseC.wordD.walk30.--- -I will go to see the red maples (枫叶) in Qixia Mountain this weekend.--- _______.A.Have a good timeB. Thank youC.That's rightD.It doesn’t matter三、完形填空(共10小题;每小题1分,满分10 分)It is important for students to make a homework plan to do homework wellFirst, know ___31___ your teachers want you to do. Write your homework down in your notebook if you need to, and ask questions about your ___32___. if you really don't understand It's much easier to take a minute to ask the teacher in or after class than to think ___33___ all the night!Second, use any free time at school to ___34___ on your homework. schools have ___35___ rooms. It's ___36___ to play with your friends and classmates after class at school, but if you can do more homework at school, you'll have less to do at home in the ___37___.Third, adjust (调整) yourself. If you don't finish your homework at school, don'tworry. Just think ___38___ how much homework you have and what else is going on that day, and then plan your time. Most school students have between 1 and 1.5 ___39___ of homework a night. If it's not a hard homework day, you can ___40___ yourself more, or you'll have to say sorry to your game shows or films on TV.31. A. what B why C when D. how32. A plan B homework C. wish D. time33. A hard B easy C happy D. luck34.A. finish B.do C.learn D.work35.A. dining B meeting C.sports D.study36.A. sorry B.interesting C helpful D.important37.A. morning B.afternoon C.evening D.Weekend38.A. with B.for C.from D.about39.A. minutes B hours C.days D.weeks40.A help B.teach C.enjoy D.play四、阅读理解(共10小题;每小题1分,满分10 分)请认真阅读下列材料,从短文后各题所给A, B, C, D四个选项中选出最佳答案,并在答题卡上将该项涂黑。

2018-2019学年江苏省南京一中七年级(下)期中试卷试卷(解析版)

2018-2019学年江苏省南京一中七年级(下)期中试卷试卷(解析版)

2018-2019学年江苏省南京一中七年级(下)期中试卷试卷一、选择题(本大题共8小题,共24.0分)1.如图所示的图案分别是三菱、大众、奥迪、奔驰汽车的车标,其中可以看着是由“基本图案”经过平移得到的是()A. 奥迪B. 本田C. 大众D. 铃木2.下列计算正确的是()A. a+a2=2a3B. a2⋅a3=a6C. (2a4)4=16a8D. (−a)6÷a3=a33.下列命题中的真命题是()A. 如果ab=0,那么a、b都为 0B. 内错角相等C. 如果a3=b3,那么a2=b2D. 两个角的两边分别平行,则这两个角相等4.下列各式能用平方差公式计算的是()A. (2a+b)(2b−a)B. (−12x +1)(−12x−1)C. (a+b)(a−2b)D. (2x−1)(−2x+1)5.如图,点E在BC的延长线上,下列条件中能判断AB∥CD的是()A. ∠3=∠4B. ∠D=∠DCEC. ∠B=∠DD. ∠1=∠26.多边形剪去一个角后,多边形的外角和将()A. 减少180∘B. 不变C. 增大180∘D. 以上都有可能7.如图所示,把一个长方形纸片沿EF折叠后,点D,C分别落在D′,C′的位置.若∠EFB=65°,则∠AED′等于()A. 70∘B. 65∘C. 50∘D. 25∘8.若多项式a2+kab+4b2是完全平方式,则常数k的值为()A. 2B. 4C. ±2D. ±4二、填空题(本大题共10小题,共30.0分)9.每到四月,许多地方杨絮、柳絮如雪花般漫天飞舞,人们不堪其扰,据测定,杨絮纤维的直径约为0.0000105m,该数值用科学记数法表示为______.10.(x-2y)2=______.11.如图,将三角形的直角顶点放在直尺的一边上,∠1=30°,∠3=20°,则∠2=______.12.若3x=4,9y=7,则3x-2y的值为______.13.如果一个多边形的每一个内角都等于120°,那么这个多边形的边数是______.14.命题“对顶角相等”的逆命题是______.15.等腰三角形的两边长分别为3cm,6cm,则它的周长是______cm.16.如图,AD、AE分别是△ABC的高和角平分线,∠B=30°,∠C=70°,则∠EAD=______°.17.常见的“幂的运算”有:①同底数幂的乘法,②同底数幂的除法,③幂的乘方,④积的乘方.在“(a2•a3)2=(a2)2(a3)2=a4•a6=a10”的运算过程中,运用了上述幂的运算中的______(按运算顺序填序号).18.已知(x-2)x+3=1,则x的值为______.三、计算题(本大题共2小题,共21.0分)19.计算:(1)-12016+(-12)-2-(3.14-π)0(2)(3a2)3+2a•(-a)5(3)(x+2)(x-1)-3x(x+1)(4)(2a+b+c)(2a-b+c)20.先化简,再求值:4(x-1)2-(2x+3)(2x-3),其中x=-1.四、解答题(本大题共6小题,共45.0分)21.填写下列空格完成证明:如图,EF∥AD,∠BAC=70°,求∠AGD.解:∵EF∥AD,∴∠2=______.(理由是:______)∵∠1=∠2,∴∠1=∠3.(理由是:______)∴______∥______.(理由是:______)∴∠BAC+______=180°.(理由是:______)∵∠BAC=70°,∴∠AGD=______°.22.如图,在方格纸内将△ABC经过一次平移后得到△A′B′C′,图中标出了点B的对应点B′.(1)补全△A′B′C′根据下列条件,利用网格点和三角板画图:(2)画出AB边上的中线CD;(3)画出BC边上的高线AE;(4)△A′B′C′的面积为______.23.已知:如图,△ABC中,AD⊥BC于点D,BE是∠ABC的平分线,若∠DAC=30°,∠BAC=80°.求:∠AOB的度数.24.如果a c=b,那么我们规定(a,b)=c,例如:因为23=8,所以(2,8)=3(1)根据上述规定,填空:(3,27)=______,(4,1)=______(2,0.25)=______;(2)记(3,5)=a,(3,6)=b,(3,30)=c.求证:a+b=c.25.如图1是一个长为4a、宽为b的长方形,沿图中虚线用剪刀平均分成四块小长方形,然后用四块小长方形拼成的一个“回形”正方形(如图2).①图2中的阴影部分的面积为______;②观察图2请你写出(a+b)2、(a-b)2、ab之间的等量关系是______;③根据(2)中的结论,若x+y=5,x•y=94,则(x-y)2=______;④实际上通过计算图形的面积可以探求相应的等式.如图3,你发现的等式是______.26.在等边△ABC中,点D、E分别是边AC、AB上的点(不与A、B、C重合),点P是平面内一动点.设∠PDC=∠1,∠PEB=∠2,∠DPE=∠a.(1)若点P在边BC上运动(不与点B和点C重合),如图(1)所示.则∠1+∠2=______.(用α的代数式表示)(2)若点P在△ABC的外部,如图(2)所示.则∠α、∠1、∠2之间有何关系?写出你的结论,并说明理由.(3)当点P在边BC的延长线上运动时,试画出相应图形,并写出∠α、∠1、∠2之间的关系式.(不需要证明)答案和解析1.【答案】A【解析】解:观察图形可知,图案A可以看作由“基本图案”经过平移得到.故选:A.根据平移不改变图形的形状和大小,将题中所示的图案通过平移后可以得出符合题意的答案.本题考查了图形的平移,图形的平移只改变图形的位置,而不改变图形的形状和大小,不要混淆图形的平移与旋转或翻转.2.【答案】D【解析】解:A、a与a2不能合并,故本选项错误;B、a2•a3=a5,故本选项错误;C、(2a4)4=16a16,故本选项错误;D、(-a)6÷a3=a6÷a3=a3,故本选项正确.故选:D.利用合并同类项、同底数幂的乘法、积的乘方、幂的乘方以及同底数幂的除法的知识求解即可求得答案.注意排除法在解选择题中的应用.此题考查了合并同类项、同底数幂的乘法、积的乘方、幂的乘方以及同底数幂的除法的知识.注意掌握指数的变化是解此题的关键.3.【答案】C【解析】解:A、如果ab=0,那么a=0或b=0,或a,b 都为 0,是假命题,错误;B、两直线平行,内错角相等,是假命题,错误;C、如果a3=b3,那么a2=b2是真命题,正确;D、两个角的两边分别平行,则这两个角相等或互补,是假命题,错误;故选:C.根据等式、平行线的性质、平方和立方进行判断即可.本题考查了命题真假的判断,属于基础题.根据定义:符合事实真理的判断是真命题,不符合事实真理的判断是假命题,不难选出正确项.4.【答案】B【解析】解:(-x+1)(-x-1)=(-x)2-1=x2-1故选:B.根据平方差公式即可求出答案.本题考查平方差公式,解题的关键是熟练运用平方差公式,本题属于基础题型.5.【答案】D【解析】解:A、由∠3=∠4可以判定AD∥BC,不能判断AB∥CD,故本选项错误;B、由∠D=∠DCE可以判定AD∥BC,不能判断AB∥CD,故本选项错误;C、由∠B=∠D不能判断AB∥CD,故本选项错误;D、由∠1=∠2可以判定AB∥CD,依据是“内错角相等,两直线平行”,故本选项正确;故选:D.根据平行线的判定定理对四个选项进行逐一分析即可.考查的是平行线的判定定理,解答此类题目的关键是正确区分两条直线被第三条直线所截形成的同位角、内错角及同旁内角.6.【答案】B【解析】解:根据多边形的外角和为360°,可得:多边形剪去一个角后,多边形的外角和还是360°,故选:B.多边形的内角和与边数相关,随着边数的不同而不同,而外角和是固定的360°,从而可得到答案.此题主要考查了多边形的外角和定理,题目比较简单,只要掌握住定理即可.7.【答案】C【解析】解:∵四边形ABCD为矩形,∴AD∥BC,∴∠DEF=∠EFB=65°,又由折叠的性质可得∠D′EF=∠DEF=65°,∴∠AED′=180°-65°-65°=50°,故选:C.由平行可求得∠DEF,又由折叠的性质可得∠DEF=∠D′EF,结合平角可求得∠AED′.本题主要考查平行线的性质及折叠的性质,掌握两直线平行内错角相等是解题的关键.8.【答案】D【解析】解:∵a2+kab+4b2=a2+kab+(2b)2,∴kab=±2•a•2b,解得k=±4.故选:D.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k的值.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,也是难点,熟记完全平方公式对解题非常重要.9.【答案】1.05×10-5【解析】解:杨絮纤维的直径约为0.0000105m,该数值用科学记数法表示为1.05×10-5.故答案为:1.05×10-5.绝对值小于1的正数也可以利用科学记数法表示,一般形式为a×10-n,与较大数的科学记数法不同的是其所使用的是负指数幂,指数由原数左边起第一个不为零的数字前面的0的个数所决定.本题考查用科学记数法表示较小的数,一般形式为a×10-n,其中1≤|a|<10,n为由原数左边起第一个不为零的数字前面的0的个数所决定.10.【答案】x2-4xy+4y2【解析】解:原式=x2-4xy+4y2.故答案为:x2-4xy+4y2.原式利用完全平方公式展开,即可得到结果.此题考查了完全平方公式,熟练掌握公式是解本题的关键.11.【答案】50°【解析】解:由三角形的外角性质可得∠4=∠1+∠3=50°,∵∠2和∠4是两平行线间的内错角,∴∠2=∠4=50°.故答案为:50°.先根据三角形的外角性质求得∠4的度数,再根据平行线的性质即可求解.本题综合考查了三角形的外角性质和平行线的性质,得到∠4的度数是解题的关键.12.【答案】47【解析】解:3x-2y=3x÷32y=3x÷9 y=.故答案是:.根据3x-2y=3x÷32y=3x÷9 y即可代入求解.本题考查了同底数的幂的除法运算,正确理解3x-2y=3x÷32y=3x÷9 y是关键.13.【答案】6【解析】解:∵多边形的每一个内角都等于120°,∴多边形的每一个外角都等于180°-120°=60°,∴边数n=360°÷60°=6.故答案为:6.先求出这个多边形的每一个外角的度数,再用360°除即可得到边数.本题主要考查了多边形的内角与外角的关系,求出每一个外角的度数是关键.14.【答案】相等的角为对顶角【解析】解:命题“对顶角相等”的逆命题是“相等的角为对顶角”.故答案为相等的角为对顶角.交换原命题的题设与结论即可得到其逆命题.本题考查了命题与定理:判断一件事情的语句,叫做命题.许多命题都是由题设和结论两部分组成,题设是已知事项,结论是由已知事项推出的事项,一个命题可以写成“如果…那么…”形式.有些命题的正确性是用推理证实的,这样的真命题叫做定理.也考查了逆命题.15.【答案】15【解析】解:①6cm为腰,3cm为底,此时周长为6+6+3=15cm;②6cm为底,3cm为腰,则两边和等于第三边无法构成三角形,故舍去.故其周长是15cm.故答案是:15.根据已知条件和三角形三边关系可知;等腰三角形的腰长不可能为3,只能为6,然后即可求得等腰三角形的周长此题主要考查学生对等腰三角形的性质及三角形的三边关系的掌握情况.已知没有明确腰和底边的题目一定要想到两种情况,分类进行讨论,还应验证各种情况是否能构成三角形进行解答,这点非常重要,也是解题的关键.16.【答案】20【解析】解:∵∠B=30°,∠C=70°,∴在△ABC中,∠BAC=180°-∠B-∠C=80°,∵AE是△ABC的角平分线,∴∠BAE=∠BAC=40°,又∵AD⊥BC,∴∠BAD=90°-∠B=60°,∴∠EAD=∠BAD-∠BAE=60°-40°=20°.故答案为:20.由∠B=30°,∠C=70°,根据内角和定理得∠BAC=180°-∠B-∠C=80°,由角平分线的定义得∠BAE=∠BAC=40°,根据AD⊥BC得∠BAD=90°-∠B=60°,利用∠EAD=∠BAD-∠BAE求解.本题考查了三角形内角和定理,角平分线的定义.关键是利用内角和定理求∠BAC,根据角平分线的定义求∠BAE,利用高得出互余关系求∠BAD,利用角的和差关系求解.17.【答案】④、③、①【解析】解:(a2•a3)2=(a2)2(a3)2(积的乘方运算)=a4•a6(幂的乘方运算)=a10(同底数幂的乘法).故答案为:④、③、①.分别利用积的乘方运算法则以及幂的乘方运算、同底数幂的乘法分别化简求出答案.此题主要考查了积的乘方运算法则以及幂的乘方运算、同底数幂的乘法等知识,正确掌握运算法则是解题关键.18.【答案】-3.1.3【解析】解:①x+3=0,x-2≠0,解得:x=-3;②x-2=1,解得:x=3;③x-2=-1,x+3为偶数,解得:x=1,故答案为:1或3或-3.根据零指数幂可得x+3=0,x-2≠0,解可得x的值;根据1的任何次方都是1可得x-2=1;根据-1的偶次幂为1可得x的值.此题主要考查了零指数幂,关键是注意要分类讨论,不要漏解.19.【答案】解:(1)-12016+(-12)-2-(3.14-π)0=-1+4-1=2;(2)(3a2)3+2a•(-a)5=27a6-2a6=25a6;(3)(x+2)(x-1)-3x(x+1)=x2-x+2x-2-3x2-3x=-2x2-2x-2;(4)(2a+b+c)(2a-b+c)=[(2a+c)+b][(2a+c)-b]=(2a+c)2-b2=4a2+4ac+c2-b2.【解析】(1)根据幂的乘方、负整数指数幂、零指数幂可以解答本题;(2)根据积的乘方、同底数幂的乘法可以解答本题;(3)根据多项式乘多项式、单项式乘多项式可以解答本题;(4)根据平方差公式和完全平方公式可以解答本题.本题考查整式的混合运算、幂的乘方、负整数指数幂、零指数幂,解答本题的关键是明确整式混合运算的计算方法.20.【答案】解:原式=4(x2-2x+1)-(4x2-9)=4x2-8x+4-4x2+9=-8x+13,当x=-1时,原式=8+13=21.【解析】先利用完全平方公式和平方差公式计算,再去括号、合并同类项即可化简原式,再将x的值代入计算可得.此题考查了整式的混合运算-化简求值,涉及的知识有:平方差公式、完全平方公式、单项式乘以单项式、去括号法则以及合并同类项法则,熟练掌握公式及法则是解本题的关键.21.【答案】∠3 两直线平行,同位角相等等量代换DG AB内错角相等,两直线平行∠AGD两直线平行,同旁内角互补110【解析】解:∵EF=AD,∴∠2=∠3,(理由是:两直线平行,同位角相等)∵∠1=∠2,∴∠1=∠3,(理由是:等量代换)∴DG∥AB(理由是:内错角相等,两直线平行)∴∠BAC+∠AGD=180°(理由是:两直线平行,同旁内角互补)∵∠BAC=70°,∴∠AGD=110°.故答案为:∠3;两直线平行,同位角相等;等量代换;DG;AB;内错角相等,两直线平行;∠AGD;两直线平行,同旁内角互补;110.此题要注意由EF∥AD,可得∠2=∠3,由等量代换可得∠1=∠3,可得DG∥BA,根据平行线的性质可得∠BAC+∠AGD=180°,即可求解.此题考查了平行线的性质与判定,解题时要注意数形结合的应用.22.【答案】8【解析】解:(1)如图所示:△A′B′C′即为所求;(2)如图所示:CD就是所求的中线;(3)如图所示:AE即为BC边上的高;(4)4×4÷2=16÷2=8.故△A′B′C′的面积为8.故答案为:8.(1)连接BB′,过A、C分别做BB′的平行线,并且在平行线上截取AA′=CC′=BB′,顺次连接平移后各点,得到的三角形即为平移后的三角形;(2)作AB的垂直平分线找到中点D,连接CD,CD就是所求的中线.(3)从A点向BC的延长线作垂线,垂足为点E,AE即为BC边上的高;(4)根据三角形面积公式即可求出△A′B′C′的面积.考查了作图-复杂作图,其中平移作图的一般步骤为:①确定平移的方向和距离,先确定一组对应点;②确定图形中的关键点;③利用第一组对应点和平移的性质确定图中所有关键点的对应点;④按原图形顺序依次连接对应点,所得到的图形即为平移后的图形.同时考查了三角形的中线,高的一些基本画图方法.23.【答案】解:∵AD⊥BC,∴∠ADC=90°,∠C=90°-∠CAD=60°.在△ABC中,∠BAC=80°,∠C=60°,∴∠ABC=180°-∠BAC-∠C=40°.∵BE是∠ABC的平分线,∴∠ABE=∠EBC=20°.在△AOB中,∠ABO=20°,∠BAO=∠BAC-∠CAD=50°,∴∠AOB=180°-∠ABO-∠BAO=110°.【解析】由AD⊥BC利用三角形内角和定理结合∠DAC=30°即可得出∠C=60°、∠ABC=40°,再根据角平分线定义可得出∠ABE=20°,在△AOB中根据三角形内角和定理即可得出∠AOB的度数.本题考查了三角形内角和定理以及角平分线的定义,根据三角形内角和定理求出∠ABC=40°是解题的关键.24.【答案】3 0 -2【解析】解:(1)(3,27)=3,(4,1)=0,(2,0.25)=-2,故答案为:3,0,-2;(2)证明:∵(3,5)=a,(3,6)=b,(3,30)=c,∴3a=5,3b=6,3c=30,∴3a×3b=30,∴3a×3b=3c,∴a+b=c.(1)根据已知和同底数的幂法则得出即可;(2)根据已知得出3a=5,3b=6,3c=30,求出3a×3b=30,即可得出答案.本题考查了同底数幂的乘法,有理数的混合运算等知识点,能灵活运用同底数幂的乘法法则进行变形是解此题的关键.25.【答案】(b-a)2(a+b)2-(a-b)2=4ab16 (a+b)•(3a+b)=3a2+4ab+b2【解析】解:①(b-a)2;②(a+b)2-(a-b)2=4ab;③当x+y=5,x•y=时,(x-y)2=(x+y)2-4xy=52-4×=16;④(a+b)•(3a+b)=3a2+4ab+b2.故答案为:①(b-a)2;②(a+b)2-(a-b)2=4ab;③16;④(a+b)•(3a+b)=3a2+4ab+b2.①表示出阴影部分正方形的边长,然后根据正方形的面积公式列式即可;②根据大正方形的面积减去小正方形的面积等于四个小长方形的面积列式即可;③将(x-y)2变形为(x+y)2-4xy,再代入求值即可;④根据大长方形的面积等于各部分的面积之和列式整理即可.本题考查了完全平方公式的几何背景,此类题目关键在于同一个图形的面积用两种不同的方法表示.26.【答案】60°+α【解析】解:(1)如图(1),∵∠1+∠2+∠ADP+∠AEP=360°,∠A+α+∠ADP+∠AEP=360°,∴∠1+∠2=∠A+α,∵△ABC是等边三角形,∴∠A=60°,∴∠1+∠2=60°+α.故答案是:60°+α;(2)∠α=∠1-∠2+60°.理由如下:如图(2),设AC与PE交于点F,.∵∠1为△PFD的外角,∴∠1=∠α+∠PFD.∵∠2为△AEF的外角,∴∠2+∠A=∠AFE∵∠A=60°,∠AFE=∠PFD∴∠2=60°+∠PFD∴∠1-∠2=∠α-60°∴∠α=∠1-∠2+60°;(3)如图(3)时:∠α=∠2-∠1-60°;如图(4)时:∠α=∠1-∠2+60°.(1)根据四边形内角和定理以及邻补角的定义得出∠1+∠2=∠C+∠α,进而得出即可;(2)利用三角形内角和定理以及邻补角的性质可得出∠α=∠1-∠2+60°;(3)利用三角外角的性质得出.需要分类讨论,如图所示.本题考查了三角形内角和定理和外角的性质、对顶角相等的性质,熟练利用三角形外角的性质是解题的关键.。

八年级2018-2019学年度上学期期中考试 数学试题(word版,含答案)

八年级2018-2019学年度上学期期中考试 数学试题(word版,含答案)

2018-2019学年度八年级上学期期中考试 数学试题第1卷(选择题 共42分)注意事项:1.答第1卷前,考生务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上。

2.每小题选出答案后,用铅笔把答题卡上对应题目的答案标号涂黑.如需改动,用橡皮擦干净后。

再选涂其它答案,不能答在试卷上。

3.考试结束,将本试卷和答题卡一并交回.一、选择题(本题共14小题.每小题3分,共42分)1.若一个正多边形一个外角是60°,则该正多边形的内角和是 A .360° B . 540° C . 720° D .900° 2. 若点A (1,1)m n +-与点B (-3,2)关于y 轴对称,则m n +的值是A .-5B .-3C .3D . 13. 已知三角形三个内角∠A 、∠B 、∠C ,满足关系式∠B+∠C=2∠A ,则此三角形 A. 一定有一个内角为45° B. 一定有一个内角为60° C. 一定是直角三角形 D. 一定是钝角三角形4. 如图,已知∠ABC=∠DCB,添加以下条件不能判定∆ABC ≌∆DCB 的是A .∠A=∠DB .∠ACB=∠DBC C .AC=DBD .AB=DC第4题 第5题第6题5.观察图中尺规作图痕迹,下列说法错误的是A.OE是∠AOB的平分线 B.OC=ODC.点C、D到OE的距离不相等 D、∠AOE=∠BOE6.如图,在Rt∆ABC中,∠C=90°,AD平分∠BAC,交BC于点D,AB=10,S∆ABD=15,则CD的长为A.3 B.4 C.5 D.67. 将一副直角三角板按如图所示位置放置,使含30°角的三角板的一条直角边和含45°角的三角板的一条直角边放在同一条直线上,则∠α的度数是A.45° B.60° C.75° D.85°第7题第8题第9题8.如图,OA=OB,∠A=∠B,有下列3个结论:①△AOD≌△BOC②△ACE≌△BDE③点E在∠O的平分线上其中正确的结论是A. 只有①B. 只有②C. 只有①②D. 有①②③9.如图,等边三角形ABC中,AD⊥BC,垂足为D,点E在线段AD上,∠EBC=45°,则等于∠ACE=A.15° B.30° C.45 D.60°10.将一个n边形变成n+1边形,内角和将A.减少180∘B.增加90∘C.增加180∘D.增加360∘11.如图,△ABC中,∠A=36∘,AB=AC,BD平分∠ABC,下列结论错误的是A. ∠C=2∠AB. BD=BCC. △ABD是等腰三角形D. 点D为线段AC的中点第11题第12题第13题12.如图,四边形ABCD中,AC垂直平分BD,垂足为E,下列结论不一定成立的是A. AB=ADB. AC平分∠BCDC. AB=BDD. △BEC≌△DEC13.如图,在△ABC中,AB=AC,AD平分∠BAC,DE⊥AB,DF⊥AC,E、F分别为垂足,则下列四个结论:①∠DEF=∠DFE;②AE=AF;③AD平分∠EDF;④AD垂直平分EF.其中正确结论有()A.1个B.2个C.3个D.4个14.如图,∠B=∠C=90°,M是BC的中点,DM平分∠ADC,且∠ADC=110°,则∠MAB=()A. 30°B. 35°C. 45°D. 60°第14题第17题第18题二、填空题(本题共4小题,每小题5分,共20分)15.已知三角形两边的长分别为1、5,第三边长为整数,则第三边的长为_____.16.若一个多边形的内角和是其外角和的3倍,则这个多边形的边数是___17.如图,已知△ABC的周长是21,OB,OC分别平分∠ABC和∠ACB,OD⊥BC于D,且OD=4,则△ABC的面积是______.18. 在△ABC 中,AB=AC,CD=CB,若∠ACD=42∘,则∠BAC=______∘.19. 含角30°的直角三角板与直线1l ,2l 的位置关系如图所示,已知12l l ,∠1=60°,以下三个结论中正确的是____(只填序号)。

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2018-2019 南京一中初中部7A 期中考试卷一、听力略二、单项选择(1’*15=15’)16.Which of the four words has the sound(声音)/æ/?A.mapB. fastC. waterD. what17.Which word can we read /geɪt/?A.gladB. gateC. greatD. grade18.Which pair has different(不同的)sounds?A.tea; meetB. good; footC. pardon; quarterD. girl; nurse19.---Excuse me, where can I find Mr. Wu?---Look, he is playing volleyball in the playground.A.aB. anC. theD. /20.---We have lots of funChildren’s Day. We can have a party in the school hall.---We can also eat nice food.A.inB. onC. atD. with21.---Your school looks beautiful. There are many trees and flowers around it.---Yes, it is. Let me you around.A.takeB. getC. showD. bring22.---How long do you get to the school, Mrs. Johnson?--- usually takes me 20 minutes to drive there.A.IB. ItC. ThisD. That23.---How often do you swim this week, Sandy?--- . My mother is ill, so I have to look after her after school.A.AlwaysB. UsuallyC. OftenD. Never24.My sister’s birthday is coming. I would like some interesting books for her.A.buyB. buysC. buyingD. to buy25.Now school students play computer games a lot. So many of them wear .A.clothesB. dressesC. glassesD. trousers26. ---Why your sister late for the meeting, Li Hua?---She gets up late in the morning.A. areB. isC. doD. does27.Many people have too much work to do now, and they don’t know how .A.to have funB. having funC. have funD. has fun28.---What’s the date today, Andy?--- .A.It’s 13 NovemberB. It’s half past eightC. It’s Tuesday todayD. It’s a sunny day today29.---Hi, Mr. Wu. This is my sister Alice.--- , Alice.A.Excuse meB. GoodbyeC. Thank youD. Nice to meet you30.---Dad, I will visit Shanghai Disneyland with my mother tomorrow.--- ! Take a lot of pictures there.A.Good luckB. Don’t worryC. Have a good timeD. See you tomorrow三、完形填空(1’*10=10’)Monkeys are clever, but they are also greedy(贪婪的).They always try to get their favourite food, and 31 let food away from their hands. The farmers in Japan use this 32 to catch(捕获) monkeys.The farmers put a big 33 box with a hole(洞) under a big tree. The hole is just right: not too big for the monkey’s fist(拳头) 34 too small for its hand. We all know that monkeys dislike the box, but they 35 peanuts(花生). The farmers put many peanuts into the hole of the36 in front of the monkeys. After that, they run away quickly and 37 the monkeys in a place far away. Many monkeys in the tree see that box. Soon a strong monkey comes 38 from the tree first and wants to get its favourite peanuts. It puts one hand into the box to get so many 39 . Now it cannot get its fist out of the box. It only takes the heavy box away. So it is 40 for the farmers to catch the monkey.31.A. always B. often C. never D. sometimes32.A. way B. food C. fist D. hole33.A. beautiful B. thin C. bad D. heavy34.A. and B. or C. but D. so35.A. get B. put C. enjoy D. take36.A. box B. bag C. tree D. glass37.A. catch B. watch C. look D. see38.A. beside B. behind C. up D. down39. A. holesB. monkeysC. boxesD. peanuts40. A. easyB. difficultC. freeD. angry四、阅读理解(1’*15=15’)AReport(报告) Card41. Suzy hassubjects in her class this year.A. 5B. 6C. 7D. 842. Suzy needs to work hard on.A. EnglishB. MathsC. ChineseD. History43. Which one is TRUE in the record card?A. Suzy is not good at sports.B. Suzy ’s dream is to be a museum worker.C. Suzy comes from Class One, Grade Eight.D. She isn ’t good at history because she always talks in class.BLittle Jack is 6 years old. He comes from the USA, but he lives with his parents in China now. Both of his parents are English teachers in a middle school.He has few friends here, so he usually stays at home with his mother. His favorite place is the big garden outside his house. There is a tall apple tree with many birds sing in it. Jack always loves using his toys to throw(扔) at the birds in the tree. He jumps high after doing that.Moonlight Middle School Suzy Class1, Grade 7 English Good this year.Maths Chinese History You don ’t do well in this subject, so you need to do more exercises. Good work. You read a lot of Chinese books this year.Not bad. You always listen to the teacher carefully, and don ’t talk in class. MusicGood. You enjoy playing the piano, and you ’re the new member of the Music Club in our school.Bad. You don ’t like swimming and other ball games.Sports ArtVery good. You like drawing beautiful pictures in your free time. You want toshow your pictures in City Museum. Hope your dream comes true.Today his mother is free. She cooks dinner in the kitchen at home. After a few minutes, she hears little Jack crying in the garden. She runs fast to the garden and wants to ask what is wrong with him.“Sorry Mom, I…I…I just want to throw at the birds in the apple tree, but I break(破坏) the window,” little Jack answers with tears(眼泪) in his eyes.“Don't worry, my baby. When your father comes home, he will help put a new piece of glass in the window, ” his mother says.“But what do you throw at the birds with, Jack?” his mother asks. “Mydad's gold watch.” Jack says.44.Jack’s favourite place is .A.the kitchenB. an apple treeC. the big gardenD. a middle school45.Which one is TRUE in this story?46. A.Jack has many Chinese friends.B.Jack uses his toy train to break the window.C.Jack always has tears in his eyes before his mother.D.Jack often feels happy after throwing at the birds in the garden.makes little Jack cry.A. Having few friendsB. Breaking the windowC.Throwing at the birdsD. Throwing his father’s gold watch47.What can we know from the story?A.Jack’s father will be very angry.B.Jack’s father will be very happy.C.Jack’s mother will throw at the birds with the toy train.D.Jack’s mother will throw at the birds with the gold watch.CMr. Liu is an English teacher in Nanjing. This year, he visits France(法国) for his summer holiday. He watches many beautiful buildings and enjoys wonderful song and dance shows there. He also loves French(法国的;法语) bread, cakes and soup. He has a good time there.But he doesn’t feel happy all the time. He wants to visit an art museum. He doesn’t know the way. So he uses English to ask some French people how to get there. He feels very sad after he finds no one can tell him. At last, a kind lady tells him the way, and says to him, “you are here in France, and people usually speak French only. They can’t speak English, so a lot of people don’t understandwhat you say. But even if they understand English, they only talk with you in French, not English.”When he goes to the museum, he sees so many beautiful pictures and other works(作品) of art. He feels excited and wants to take pictures of what he sees in the museum. At that time, a museum worker stops him, and asks him not to take any photos. He asks the worker why he can’t take any photos in English. That man doesn’t answer his question, but points at(指向) a sign on the wall with some French words “II est interdit de photographier dans la salle.”48. makes Mr. Liu have fun in France.a.French foodb. Beautiful buildingsc.Song and dance showsd. The visit to the art museumA.aB. abC. abcD. abcd49.Why don’t French people tell Mr. Liu the way?A.Many of them are not very kind.B.Many of them don’t like Mr. Liu.C.Many French people don’t know the way.D.Many French people don’t want to speak English.50.Which one is TRUE about Mr. Liu?A.Mr. Liu doesn’t take any pictures at last.B.Mr. Liu doesn’t visit the museum at last.C.Mr. Liu can talk with French people in French.D.Mr. Liu can’t speak English with the French lady.51.The story mainly(主要)tells us .A.Mr. Liu asks the way.B.Mr. Liu visits the museum.C.Mr. Liu always has a good time in France.D.Mr. Liu visits France in his summer holiday.DDo you often listen to music? Do you know music can make people have different feelings in some ways?Scientists (科学家)from the USA find some interesting things about music in the shop. When western classical (西方古典的) music plays, people usually pay (支付) more money for the clothes and shoes. But they pay little money when they hear other kinds of music. Do you want to know why? Scientists think that western classical music makes people feel rich. They feel they have a lot of money and pay much after they hear it.Some music can also make people eat fast. In some fast food shops, usually there are too many people there at lunchtime. Then the fast music works. It usually makes people have their quick lunch when they hear it. This lets people get away quickly. The fast food shops can make more money in this way.Before 10 p.m., the saxophone (萨克斯) music “Back Home” plays in some shop many times. When the people working in the shop hear it, they know it is time to close the shop. Then shoppers will leave one by one.Next time, when you hear the music in some places, watch out.52.We can find examples(例子)about the music.A. 2B. 3C. 4D. 553.The word “rich” means in Chinese.A. 高雅的B. 便宜的C. 有钱的D. 放松的54.It’s 12:00 a.m. now. Sandy is having lunch in KFC. She may hear .A.any musicB. fast musicC. saxophone musicD. western classical music55.Which one is the best title(标题)?A.Music in the shopB. Western classic musicC. Scientists’ favourite musicD. Interesting findings about music五、填空(1’*10=10’)A) 根据括号中所给的音标或汉语写出单词,使句子意思完整正确。

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