【南外】2018初二上秋季期中试卷及答案

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2018年南京【南外】【数学】初二上期中试卷及答案

2018【南外】【数学】初二上期中试卷一、选择题（每题2分，共16分）1．图中由“○”和“□”组成的轴对称图形，该图形的对称轴是直线（）A ．l 1B ．l 2C ．l 3D ．l 42．下列各图中a 、b 、c 为三角形的边长，则甲、乙、丙三个三角形和左侧△ABC 全等的是（）A ．甲和乙B ．乙和丙C ．甲和丙D ．只有丙3．下列说法：①近似数3.5与3.50精确度不同；②2.86精确到0.1的近似值是2.8；③近似数11.15万精确到百分位；④12345精确到十位的近似值是1.23×104，其中正确的个数为（） A ．1 B ．2 C ．3 D ．44．设边长为3的正方形的对角线长为a ．下列关于a 的四种说法：①a 是无理数；②a 可以用数轴上的一个点来表示；③3＜a ＜4；④a 是18的算术平方根．其中，所有正确说法的序号是（） A ．①④ B ．②③ C ．①②④ D ．①③④5．如图，在△ABC 中，=90BAC ∠︒，点D 、E 分别是AB 、AC 的中点．以BD 、BC 、CE 为边向外作正方形，其面积分别为S 1、S 2、S 3，若S 1=4，S 3=9，则S 2的值为（） A ．10 B ．13 C ．52 D ．976．如图，AB CD ⊥，且AB =CD ．E 、F 是AD 上两点，CE AD ⊥，BF AD ⊥．若CE =a ，BF =b ，EF =c ，则AD 的长为（） A ．a +c B ．b +c C ．a -b +c D ．a +b -c南京学而思教研中心出品 2 / 10（第5题图）（第6题图）（第7题图）7．如图，在ABC △中，AB AC =，AD 、CE 是ABC △的两条中线，P 是AD 上的一个动点，则下列线段的长度等于BP +EP 最小值是（） A ．BC B ．CE C ．AD D ．AC8．下列说法中，正确的是（）个①有两边及一边上的高线对应相等的两个三角形全等； ②有一个角是60°的等腰三角形是等边三角形；③底边上的高等于这边的一半的等腰三角形一定是等腰直角三角形； ④在一个三角形中，如果30°角所对的边等于另一边的一半，那么这个三角形是直角三角形． A.1 B .2 C.3 D.4二、填空题（每题2分，共22分） 9．在163π、 1.6-__________个． 10．9的平方根是__________，27-的立方根是__________．11．（填“>”、“=”或“<”）12．如图，数轴上点A 表示的实数是__________．（第12题图）（第13题图）13．如图，小明不小心将一块三角形玻璃具打碎了，最省事的办法是带__________去商店（填序号），理由是：__________．（请用文字语言表述）14．三角形三边长分别为3，4，5，那么最长边上的中线长等于__________．15．若等腰三角形的周长为10cm ，其中一边长为2cm ，则该等腰三角形的腰长为__________cm ．S 3S 2S 1EDCBA BDE CFB CD EAP16．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__________．17．在ABC △中，AB =AC =5，BC =6，D 为BC 边上的任意一点，过点D 分别作DE AB ⊥，DF ⊥AC ，垂足分别为E 、F ，则DE DF +=__________．18．如图，在矩形ABCD 中，AB =3，BC =4，点E 是BC 边上一点．连接AE ，把∠B 沿AE 折叠，使点B 落在点B ′处，当CBE '△为直角三角形时，BE 的长为__________．（第16题图）（第18题图）（第19题图）19．如图，ABC △中，∠ABC =45°，CD AB ⊥于D ，BE 平分∠ABC ，且BE AC ⊥于E ，与CD 相交于点F ，H 是BC 边的中点，连接DH ，与BE 相交于点G ．若CE =1，则BG 为__________．三、解答题（共62分） 20．（10分）⑴计算：2(1⑵解方程：225(1)90x --=21．（6分）已知2a -的平方根是±2，33a b --的立方根是3，整数c满足不等式1c c <+ ⑴求a 、b 、c 的值； ⑵求2232a b c ++的平方根BCDAF GB CHED A22．（6分）如图，小明想知道学校旗杆的高度，他发现旗杆顶端A 处的绳子垂到地面B 处后还多2米．当他把绳子拉直并使下端刚好接触到地面C 处，发现绳子下端到旗杆下端的距离为6米，请你帮小刚求出旗杆的高度AB 长． 23．（6分）已知：四边形ABCD ．求作：点P ．使∠PCB =∠B ．且点P 到点B 、点C 的距离相等．（要求：用直尺和圆规作图，保留作图痕迹，并写出作法）24．（8分）已知：如图，在Rt ACB △中，∠A C B=90°，点D 是AB 的中点，点E 是CD 的中点，过点C 作CF AB ∥交AE 的延长线于点F ． ⑴求证：ADE FCE ≌△△⑵若∠DCF =120°，DE =2，求BC 的长．BCDAE BCDAF25．（5分）⑴如图⑴，在ABC △中，AB AC BC >>，∠ACB =80°，点D 、E 分别在线段BA 、AB 的延长线上，且AD =AC ，BE =BC ，求∠DCE 的度数．⑵如图⑵，在ABC △，AB AC BC >>，∠ACB =80°，点D 、E 在边AB 上，并且AD =AC ，BE =BC ，求∠DCE 的度数．图1 图226.（10分）在ABC △中，BC =a 、AC =b 、AB =c ，设c 为最长边，当222a b c +=时，ABC △是直角三角形，当222a b c +≠时，利用代数式22a b +和2c 的大小关系，探究ABC △的形状（按角分类）．⑴当ABC △三边分别为6，8，9时，ABC △为__________三角形；ABC △三边分别为6，8，11，ABC △为__________三角形．⑵猜想，当22a b +__________2c 时，ABC △为锐角三角形，当22a b +__________2c 时，ABC △为钝角三角形．⑶当a =1，b =3时，探究ABC △的形状，并求出对应c 的取值范围．CBD EABC DA∥，∠MAB与∠NBA的平分线交于点C，过点C 27．（8分）已知，如图所示，直线MA NB作一条直线l与两条直线MA、NB分别相交于点D、E．⑴如图1，当直线l与直线MA垂直时，线段AD、BE、AB之间的数量关系是__________．（请直接写出结论，不用证明）；⑵如图2，当直线l与直线MA不垂直，且交点D、E都在AB的同侧时，⑴中的结论是否成立？如果成立，请证明；如果不成立，请说明理由．⑶当直线l与直线MA不垂直，且交点D、E在AB的异侧时，⑴中的结论是否成立？如果成立，请证明；如果不成立，请直接写出线段AD、BE、AB之间的数量关系．2018【南外】【数学】初二（下）数学期中试卷（答案）题号 12 3 4 5 6 7 8答案CBA C CDB C二、填空题三、解答题20、⑴解：原式34(3)1)=+--+731=++-9=+⑵解：225(1)9x -= 29(1)25x -=315x -=或35-85x =或2521、⑴由题意得2463327821a a ab bc c c ⎧-==⎧⎪⎪--=⇒=-⎨⎨⎪⎪=<<+⎩⎩⑵原式22326(8)2=⨯+-+ 144=所以原式平方根为12±22、解：设旗杆高度AB 为x 米，则AC 长(2)x +米 2226(2)x x +=+ 解得8x =答：旗杆高度AB 长8米 23、如图所示，点1P ，2P 即为所求24、⑴证明： ∵E 是CD 的中点 ∴DE =CE ∵AB ∥CF∴∠ADE =∠FCE 在△ADE 和△FCE 中ADE FCE DE CE AED FEC∠=∠=∠=∠⎧⎪⎨⎪⎩ ∴△ADE ≌△FCE （ASA ）⑵∵∠ACB =90°，D 为AB 中点∴12CD AB AD BD ===∵∠DCF =∠ADC =120° ∴∠DCB =∠DBC =60° ∴△DCB 为等边三角形 ∵DE =2 ∴BC =DC =425、⑴∵AD =AC ,BE =BC∴设D ACD α∠=∠=,E BCE β∠=∠=80180DCEDCE αβαβ++︒=∠++∠=︒⎧⎨⎩∴∠DCE =130° ⑵∵AD =AC ,BE =BC∴设ADC ACD α∠=∠=,CEB BCE β∠=∠=80180DCEDCE αβαβ+-︒=∠++∠=︒⎧⎨⎩∴∠DCE =50°26、⑴锐角，钝角 ⑵＞，＜⑶∵c 是最长边，a =1，b =3 ∴3≤c ＜422221310a b ==++①当222a c b +＞时，即2c ＜10，0c <<∴当3c ≤<时，这个三角形是锐角三角形；②当222a b c +=，即210c =， c =∴当c =时，这个三角形是直角三角形；③当222a c b +＜时，即210c >， c >4c ＜时，这个三角形是钝角三角形27、⑴AD +BE =AB ⑵成立证明：如图在线段AB 上截取AF=AD ，连接FC ∵AC ，BC 分别平分∠MAB ，∠NBA ， ∴∠1=∠2，∠3=∠4．在△ADC 和△AFC 中，12AD=AF =AC=AC⎧⎪⎪⎨⎪⎪⎩∠∠ ∴△ADC ≌△AFC （SAS ）． ∴∠ADC =∠AFC ， ∵MA ∥NB ，∴∠ADC +∠6=180°，又∵∠5+∠AFC =180°， ∴∠5=∠6．在△CBF 和△CBE 中，5634==AC=AC⎧⎪⎪⎨⎪⎪⎩∠∠∠∠ ∴△CBF ≌△CBE （AAS ）， ∴BF =BE∵AF +BF =AB ， ∴AD +BE =AB ．⑶不成立如图，结论：AD BE AB -=理由：延长BC 交AM 于F ． ∵AD ∥BN ，∴∠4=∠AFB =∠3，∠FDC =∠CEB ，易证△AFC ≌△ABC （AAS ）∴FC =BC ，AF =AB易证△DFC ≌△EBC （AAS ） ∴DF =BE ，∴AD =AF +DF =AB +BE ，如图，结论：AB AD BE =- 证法同上。

2018年八年级期中试卷及答案

初二英语第一学期期中教学质量调研测试二、选择填空(共25小题;每小题1分，满分25分)A)单项填空从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并将答案写在答题卷上。

21.一Do you know man over there?一Yes, he is honest person. Now he is planning one-day tripA. a; an; anB. an; the; aC. the; an; a D .the; a; an22.一Excuse me, where is Children’s Park, please?一Take the No.5 bus and at the fifth bus stop.A. get offB. get onC. get to D .get up23. The number of the books in our library about 20,000.A. have B .are C .has D. is24.一does the steel bridge weigh?一About 90,000 tons.A. How muchB. How manyC. How heavyD. How wide25.一Daniel, if you answer the question , you will lose the game.一OK, I know . But I’m if(是否)I can do it well.A .incorrectly; certain B. incorrectly; uncertainC. uncorrectly; certainD. uncorrectly; incertain26.一We don’t have a night these days because of too much work.一Are you crazy? You’d better have a rest instead working too long，A .on; off B. off; of C. on; of D .off; on27.一I don’t know how to do it well.一Don’t worry. Here are some .A .ropes B. tapes C. tips D. pipes28.一How beautiful this piece of furniture looks!一Yes, it is made rosewood(红木) Hainan，A. from; in B . from; of C. by; of D .of; from29.Bob skates than I, but he doesn’t skate my brother.A .better; so good asB .better; so well asC .worse; as good as D. worse; as well as30.一How do you usually come to school?一By bike. Taking a bus may much money and walking too much time.A .take;paysB .cost; takesC .pay; costsD .pay; takes31. We had a good time TV yesterday, but Simon had no time TV.A. watching; watching B .to watch; to watchC .watching; to watchD .to watch; watching32. .The text is easier and interesting than that one.A .more; much.B .much; moreC .more; moreD .much; much33.—. 一He’s friendly and helpful.A .What’s he like?B .How’s he like?C .What’s he? D. What does he like?34.Our teacher often advises us notes while reading.A .takeB .to takingC .takingD .to take35.—, J udy. Let’s go to the cinema!一I’m sorry I can’t go with you. I have a lot of homework to do.A .Thank youB .Take careC .See youD .Come onB) 完形填空先通读下面的短文，掌握其大意，然后在每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项，并将答案写在答题卷上。

2018年初二年级英语(上册)期中试题答案

Ⅰ听力测试(A) .根据所听内容，选择正确图片。

（共5分每小题1分）（（）1.（（）2.（（）3.（）4.（）5.(B) .根据所听内容，选择正确答语。

（共5分每小题1分）（）6. A. At seven. B.Tomorrow. C. On foot（）7. A. 1 live farthest from school. B. I goes to school by bike.C. I like the most expensive way.（）8. A. I don't think so. B. I travel by train.C. It' s the most comfortable way.（）9. A. He goes by car. B. He goes at six. C. He's a worker.（）10. A. By train. B. Twodays, C. In two hours.（C）.根据说听小对话内容，选择正确答案。

（共5分每小题1分）（）11. Is the Yellow River shorter than the Changjiang River?A. Yes, it is shorter. B . No, it isn't smaller. C. Yes, it is longer.（）12. What are they talking about?A. The population.B. The hometown.C. Mike.（）13. What is the girl pointing to?A. Washington D.C.B. London.C. Beijing.（）14. What will the weather be like in winter?A. Cold.B. Warm.C. Hot.（）15. How much are the two pens?A. 30 yuan.B. 40 yuan.C. 70 yuan.（D）.根据所听陈述内容，选择正确答案。

2018年秋学期期中考试-八年级英语试卷

2018年秋学期期中考试八年级英语试题（考试时间：100分钟试卷分值：150分考试形式：闭卷）亲爱的同学，经过半学期的努力，你的英语学习一定取得了新的进步！请认真思考，规范答题。

祝你取得优异成绩！Good luck!注意事项：1. 本试卷包含第I卷选择题（第1～65小题）、第II卷非选择题（第66～100小题及书面表达题，还有附加题）两部分。

2. 附加题供选做。

选做的同学务必将答题卡上附加题题目后的小方块用2B铅笔涂黑。

3. 本试卷中所有试题必须作答在答题卡上规定的位置，否则不给分。

4. 答题前，务必将自己的姓名、准考证号用书写黑色字迹的0.5毫米签字笔填写在试卷及答题卡上。

试卷Ⅰ（选择题, 共90分）一、听力（共20题，每小题1.5分，计30分）第一部分: 听对话回答问题。

1. What will the woman make?A. B. C.2. What is the girl’s favourite subject?A. B. C.3.Where did Peter’s father go last month?A. B. C.4. What does the man need?A. B. C.5. What’s Susan like?A. She’s polite.B. She’s helpful.C. She’s funny.6. How long does Tom spend on his hobbies now?A. About two hours.B. About an hour.C. About half an hour.7. What’s the most important does the boy think for a friend?A. To be clever.B. To be honest.C. To be good-looking.8. What does the boy think of the film?A. Boring.B. Interesting.C. Exciting.9. Which bag is the cheapest of all?A. The red one.B. The black one.C. The blue one.10. How many places of interest did the girl visit?A. ThreeB. FourC. Five第二部分：你将听到一段对话和两篇短文。

八年级上册英语期中检测题

2018年秋期期中测试卷八年级英语第Ⅰ卷选择题（共三部分，满分85分）第一部分听力第一节听对话选图（共5小题，每小题1分，满分5分）听下面五段对话，从题中所给的A、B、C三幅图片中选出与对话意思相符的图片。

每段对话听两遍。

( )1.What is mentioned?( )2.What did the boy see on the farm last time?( )3.What are they talking about?( )4.What’s Lisa’s father?( )5.Who are they talking about?第二节对话理解（共10小题，每小题1分，满分10分）听下面七段对话，从题中所给的A、B、C三个选项中选出最佳选项。

每段对话听两遍。

听第一段对话，完成第6小题。

( )6.What is Jim’s sister doing?A.Telling a joke.ughing.C.Sleeping( )7.What happened to Henry?A.He broke his arm during work.B. He got lost in Beijing.C.He lost his job.( )8.What does Peter want to do?A.To listen to music.B.To watch a cartoon.C.To do his homework. ( )9.What sport is Carl good at?A.Baseball.B.Volleyball.C.Basketball.( )10.Where did Kevin go last month?A.To Shanghai.B.To Beijing.C.To Hong Kong. ( )11.What did Mary do at home?A.She watched TV.B.She did some housework.C.She looked after her brother.( )12.How old is Mike?A.NineB.Ten.C.Twelve( )13.What language does Mike use to tell jokes?A.RussianB.ChineseC.English( )14.How far is it from Linda’s home to Park Store?A.Five minutes’ walkB.Ten minutes’ walkC.Twenty minutes’ walk. ( )15.What does Linda say about the things in Rose Store?A.The cheapestB.The most expensiveC.Not bad第三节听短文，选择正确信息填表（共5小题，每小题1分，满分5分）根据所听内容和表格中的提示词，从下列各题所给的A、B、C三个选项中选( )17.A.5 weeks B. 3 months C.5 months( )18.A.a strong wind B.a heavy rain C. a heavy snow( )19.A.dirty B.small C.expensive( )20.A.juice k C.water第二部分语言知识运用（共二节，满分25分）第一节单项填空（共10小题，每小题1分，满分10分）从下列各题所给的A、B、C、三个选项中，选出可以填入空白处的最佳选项。

2018年秋八年级上学期英语期中试卷(含答案)

2018年秋八年级上学期英语期中试卷(含答案)（总分：120分时间120分钟）第I卷第一部分听力（20分）一、听句子，选择正确的图片。

（共5小题；每小题1分，共5分）二、听短对话，选择最佳答案。

（共5小题；每小题1分，共5分）听第一段对话，完成第11至12题。

( )11. What does Alan think of the trip to Hong Kong?( )13. What does Sam’s sister do?笔试部分（100分）第二部分阅读理解（共两节，满分40分）第一节（共15小题；每题2分，满分30分）阅读下列短文，从每题所给的四个选项中选出最佳选项。

AAre you always happy during our vacation? Many people may say “yes”. But last week I had a bad vacation.My parents and I took a bus to the Great Wall. We got on the bus at 7: 00 a.m. But on the half way, there was something wrong with the bus. After an hour, it started again. It was about 11: 00 a.m. when we got to the Great WallWe were excited when we stood on the Great Wall. My father took out the camera and wanted to take some photos. But just then, it started to rain. We had to go back to our bus. When we wanted to eat something, we found we left our food at home.( )21. How did they go to the Great Wall?( )22. How long did it take them to get to the Great Wall?“”BThursday, April 24thWe got to the clean, lovely city of Yangzhou early, in the morning. This is our first trip to China. All the different smells attract our attention to the local food. We are going to try something special for dinner tonight. The hotel we are staying in is not expensive but very clean. We plan to stay here for a few days, visit some places in the city, and then travel to the Great Wall in the north.Sunday, April 27thWe visited the famous Slender West Lake(瘦西湖) which was crowded with visitors from all over the world, and bought a lot toys for our friends outside the gate of the park. Everything is so colorful, and we have taken hundreds of photos already! Later today we will do the famous foot massage(按摩) and then leave for the Great Wall. We will take the night train north, stay in Beijing for two days, and then catch a bus to the Great Wall.Wednesday, April 30thOur trip to the Great Wall was long and boring. We visited a small village in the mountains. People in the village love the quiet life. They are the kindest people I had ever met. They always smile and say “Hello”. Ralph and I can speak only a few words in Chinese, so smiling is the best way to show our kindness.( )25. From the passage we can see that the writer had a stay in Yangzhou...Being outgoing is good for your life. Those people who are more outgoing like to meet lots of people and have more fun in life. In fact, being outgoing is not so hard as you think. Even shy people can be outgoing.You can start to become outgoing with your best friends or a group of friends. But the real challenge comes when you meet strangers or new friends. Smile more and usually they will reply to your smile. In this way, you may have some talks.Start a talk. Just a simple “Hello．”or “How is it going?” is a good start. If you want to make interesting talks, you can read news in newspapers and prepare your views, or surf the Internet for new information and then keep that in mind.The easiest way to become more outgoing is to go out. This is also the most important step. Go to a park, beach, club, party or any other place that you think can be fun, and you may make new friends there.( )29. You can start being outgoing with .A. your parentsB. your teachersC. your best friendsD. your new friends( )30. When you start a talk with a stranger, you can say “”.A. What's the matter?B. What's your name?C. How is it going?D. Are you healthy?( )31. Making new friends can make us .A. more outgoingB. healthierC. more athleticD. wilder( )32. Which is NOT the wri ter’s view?A. Being outgoing is really difficult.B. Being Outgoing is good for our lives.C. Being outgoing helps us have more fun.D. Being outgoing w ith strangers isn’t easy.DEvery one of us, rich or poor, should have at least one or two good friends. Your friends will listen to you when you speak, will help you when you have problems, and will be together with you in your life.Everyone needs friends. Friendship can make us happier. How can we find a good friend and get on well with（与……相处得好）each other？Here are some tips.★Make friends with a person who is easy to get on with.★You should make friends with a person who has something in common with you.★Give your friend a hand when he or she has problems. Friends should always be ready to help each other.★Believe in（信任）each other. This is the most important thing in a friendship ★Even the best friends may have a quarrel（争吵）sometimes．If this happens, don't let your quarrel last too long. Try to say sorry to your friend soon.( )33. Who need(s) at least one or two good friends?A. The young.B. EveryoneC. The rich.D. The poor( )34. Friendship can make people .A. youngerB. more outgoingC. happierD. richer( )35. which is the most important thing in a friendship?A．Never doubting（怀疑）your friend.B. Never having a fight with your friend.C. Getting on well with your friend.D. Giving your friend a hand if he or she needs.第二节根据下面的短文，从短文后的选项中选出能填入空白处的最佳答案，选项中有两项为多余的选项。

2018-2019学年南京外国语学校八年级(上)期中数学试卷新人教版含答案解析

2018-2019学年南京外国语学校八年级（上）期中数学试卷一．选择题（每小题3分，共30分）1．（3分）（2011秋•正阳县校级期末）下列图案中，是轴对称图形有（）A．1个B．2个C．3个D．4个2．（3分）（2017春•道外区期末）三角形三条边大小之间存在一定的关系，以下列各组线段为边，能组成三角形的是（）A．2 cm，3 cm，5 cm B．5 cm，6 cm，10 cmC．1 cm，1 cm，3 cm D．3 cm，4 cm，9 cm3．（3分）（2013秋•鄂州期末）若等腰三角形一腰上的高是腰长的一半，则这个等腰三角形的底角是（）A．75°或15°B．75°C．15°D．75°或30°4．（3分）（2005•临沂）如图，将两根钢条AA′、BB′的中点O连在一起，使AA′、BB′可以绕着点O自由转动，就做成了一个测量工件，由三角形全等得出A′B′的长等于内槽宽AB；那么判定△OAB≌△OA′B′的理由是（）A．边角边B．角边角C．边边边D．角角边5．（3分）（2016秋•肇源县期末）等腰三角形中，一个角为50°，则这个等腰三角形的顶角的度数为（）A．150°B．80°C．50°或80°D．70°6．（3分）（2004•长沙）如图，已知MB＝ND，∠MBA＝∠NDC，下列条件中不能判定△ABM≌△CDN的是（）A．∠M＝∠N B．AM＝CN C．AB＝CD D．AM∥CN7．（3分）（2017秋•东昌区校级期中）如果一个多边形的边数由8边变成10边，其内角和增加了（）A．90°B．180°C．360°D．540°8．（3分）（2017•夏津县一模）如图，将一副三角板叠放在一起，使直角的顶点重合于O，则∠AOC+∠DOB＝（）A．90°B．120°C．160°D．180°9．（3分）（2014•河北模拟）如图，给出下列四组条件：①AB＝DE，BC＝EF，AC＝DF；②AB＝DE，∠B＝∠E．BC＝EF；③∠B＝∠E，BC＝EF，∠C＝∠F；④AB＝DE，AC＝DF，∠B＝∠E．其中，能使△ABC≌△DEF的条件共有（）A．1组B．2组C．3组D．4组10．（3分）（2012春•温州期末）如图，AE＝AF，AB＝AC，EC与BF交于点O，∠A＝60°，∠B＝25°，则∠EOB的度数为（）A．60°B．70°C．75°D．85°二．填空题（每小题3分，共18分）11．（3分）（2008秋•宁波期末）如图，△ABC中，∠C＝90°，AM平分∠CAB，CM＝20cm，那么M到AB的距离是cm．12．（3分）（2016春•芦溪县期末）一扇窗户打开后，用窗钩可将其固定，这里所运用的几何原理是．13．（3分）（2008•吉林）如图，点D，B，C点在同一条直线上，∠A＝60°，∠C＝50°，∠D＝25°，则∠1＝度．14．（3分）（2017秋•东昌区校级期中）如图，点P在∠AOB的平分线上，若使△AOP≌△BOP，则需添加的一个条件是（只写一个即可，不添加辅助线）．15．（3分）（2015秋•平邑县期末）如图，∠AOP＝∠BOP＝15°，PC∥OA，PQ⊥OA，若PC＝4，则PQ＝．16．（3分）（2013•邵东县模拟）如图，△ABC中，∠C＝90°，AD平分∠BAC，AB＝5，CD＝2，则△ABD的面积是．三、解答题（共6道题，满分52分）17．（6分）（2017秋•东昌区校级期中）一个正多边形的一个外角等于它的一个内角的，这个正多边形是几边形？18．（8分）（2017秋•新宾县期中）如图，在△ABC中，AD⊥BC于D，AE平分∠DAC，∠BAC＝80°，∠B＝60°，求∠AEC的度数．19．（8分）（2017秋•虞城县期中）已知：如图AE＝AC，AD＝AB，∠EAC＝∠DAB．求证：△EAD≌△CAB．20．（8分）（2017秋•东昌区校级期中）如图，点A，D，B，E在同一条直线上，且AD＝BE，∠A＝∠FDE，请添加一个适当条件使△ABC≌△DEF．并加以证明．21．（10分）（2017秋•河北区期中）已知，如图，AB＝CD，DE⊥AC，BF⊥AC，E，F是垂足，DE＝BF．求证：（1）AF＝CE；（2）AB∥CD；（3）AD＝CB且AD∥CB．22．（12分）（2017秋•东昌区校级期中）如图，在正方形ABCD中，E是AD的中点，F是BA延长线上的一点，AF＝AE，已知△ABE≌△ADF．（1）在图中，可以通过平移、翻折、旋转中的哪一种方法，使△ABE变到△ADF的位置；（2）线段BE与DF有什么关系？证明你的结论．2017-2018学年南京外国语学校八年级（上）期中数学试卷参考答案与试题解析一．选择题（每小题3分，共30分）1．（3分）（2011秋•正阳县校级期末）下列图案中，是轴对称图形有（）A．1个B．2个C．3个D．4个【解答】解：第一个图形是轴对称图形；第二个图形是轴对称图形；第三个图形不是轴对称图形；第四个图形是轴对称图形；综上所述，轴对称图形共有3个．故选：C．2．（3分）（2017春•道外区期末）三角形三条边大小之间存在一定的关系，以下列各组线段为边，能组成三角形的是（）A．2 cm，3 cm，5 cm B．5 cm，6 cm，10 cmC．1 cm，1 cm，3 cm D．3 cm，4 cm，9 cm【解答】解：A、∵2+3＝5，∴不能组成三角形，故本选项错误；B、∵10﹣5＜6＜10+5，∴能组成三角形，故本选项正确；C、∵1+1＝2＜3，∴不能组成三角形，故本选项错误；D、∵3+4＝7＜9，∴不能组成三角形，故本选项错误．故选：B．3．（3分）（2013秋•鄂州期末）若等腰三角形一腰上的高是腰长的一半，则这个等腰三角形的底角是（）A．75°或15°B．75°C．15°D．75°或30°【解答】解：当等腰三角形是锐角三角形时，如图1所示∵CD⊥AB，CD AC，∴sin∠A，∴∠A＝30°，∴∠B＝∠ACB＝75°；当等腰三角形是钝角三角形时，如图2示，∵CD⊥AB，即在直角三角形ACD中，CD AC，∴∠CAD＝30°，∴∠CAB＝150°，∴∠B＝∠ACB＝15°．故其底角为15°或75°．故选：A．4．（3分）（2005•临沂）如图，将两根钢条AA′、BB′的中点O连在一起，使AA′、BB′可以绕着点O自由转动，就做成了一个测量工件，由三角形全等得出A′B′的长等于内槽宽AB；那么判定△OAB≌△OA′B′的理由是（）A．边角边B．角边角C．边边边D．角角边【解答】解：△OAB与△OA′B′中，∵AO＝A′O，∠AOB＝∠A′OB′，BO＝B′O，∴△OAB≌△OA′B′（SAS）．故选：A．5．（3分）（2016秋•肇源县期末）等腰三角形中，一个角为50°，则这个等腰三角形的顶角的度数为（）A．150°B．80°C．50°或80°D．70°【解答】解：①50°是底角，则顶角为：180°﹣50°×2＝80°；②50°为顶角；所以顶角的度数为50°或80°．故选：C．6．（3分）（2004•长沙）如图，已知MB＝ND，∠MBA＝∠NDC，下列条件中不能判定△ABM≌△CDN的是（）A．∠M＝∠N B．AM＝CN C．AB＝CD D．AM∥CN【解答】解：A、∠M＝∠N，符合ASA，能判定△ABM≌△CDN，故A选项不符合题意；B、根据条件AM＝CN，MB＝ND，∠MBA＝∠NDC，不能判定△ABM≌△CDN，故B选项符合题意；C、AB＝CD，符合SAS，能判定△ABM≌△CDN，故C选项不符合题意；D、AM∥CN，得出∠MAB＝∠NCD，符合AAS，能判定△ABM≌△CDN，故D选项不符合题意．故选：B．7．（3分）（2017秋•东昌区校级期中）如果一个多边形的边数由8边变成10边，其内角和增加了（）A．90°B．180°C．360°D．540°【解答】解：∵n边形的内角和为（n﹣2）•180°，∴边数增加2它的内角和增加2×180°＝360°．故选：C．8．（3分）（2017•夏津县一模）如图，将一副三角板叠放在一起，使直角的顶点重合于O，则∠AOC+∠DOB＝（）A．90°B．120°C．160°D．180°【解答】解：设∠AOD＝a，∠AOC＝90°+a，∠BOD＝90°﹣a，所以∠AOC+∠BOD＝90°+a+90°﹣a＝180°．故选：D．9．（3分）（2014•河北模拟）如图，给出下列四组条件：①AB＝DE，BC＝EF，AC＝DF；②AB＝DE，∠B＝∠E．BC＝EF；③∠B＝∠E，BC＝EF，∠C＝∠F；④AB＝DE，AC＝DF，∠B＝∠E．其中，能使△ABC≌△DEF的条件共有（）A．1组B．2组C．3组D．4组【解答】解：第①组满足SSS，能证明△ABC≌△DEF．第②组满足SAS，能证明△ABC≌△DEF．第③组满足ASA，能证明△ABC≌△DEF．第④组只是SSA，不能证明△ABC≌△DEF．所以有3组能证明△ABC≌△DEF．故符合条件的有3组．故选：C．10．（3分）（2012春•温州期末）如图，AE＝AF，AB＝AC，EC与BF交于点O，∠A＝60°，∠B＝25°，则∠EOB的度数为（）A．60°B．70°C．75°D．85°【解答】解：∵AE＝AF，AB＝AC，∠A＝60°∴△ABF≌△ACE∴∠C＝∠B＝25°∴∠AEC＝180°﹣60°﹣25°＝95°，∴∠EOB＝95°﹣25°＝70°故选：B．二．填空题（每小题3分，共18分）11．（3分）（2008秋•宁波期末）如图，△ABC中，∠C＝90°，AM平分∠CAB，CM＝20cm，那么M到AB的距离是20cm．【解答】解：∵∠C＝90°，AM平分∠CAB，∴M到AB的距离等于CM＝20cm．故填20．12．（3分）（2016春•芦溪县期末）一扇窗户打开后，用窗钩可将其固定，这里所运用的几何原理是三角形的稳定性．【解答】解：一扇窗户打开后，用窗钩可将其固定，这里所运用的几何原理是三角形的稳定性．故答案为：三角形的稳定性．13．（3分）（2008•吉林）如图，点D，B，C点在同一条直线上，∠A＝60°，∠C＝50°，∠D＝25°，则∠1＝45度．【解答】解：∵∠ABD是△ABC的外角，∴∠ABD＝∠A+∠C＝60°+50°＝110°，∴∠1＝180°﹣∠ABD﹣∠D＝180°﹣110°﹣25°＝45°．14．（3分）（2017秋•东昌区校级期中）如图，点P在∠AOB的平分线上，若使△AOP≌△BOP，则需添加的一个条件是∠APO＝∠BPO（答案不唯一）（只写一个即可，不添加辅助线）．【解答】解：∠APO＝∠BPO等．理由：∵点P在∠AOB的平分线上，∴∠AOP＝∠BOP，在△AOP和△BOP中∵，∴△AOP≌△BOP（ASA），故答案为：∠APO＝∠BPO（答案不唯一）．15．（3分）（2015秋•平邑县期末）如图，∠AOP＝∠BOP＝15°，PC∥OA，PQ⊥OA，若PC＝4，则PQ＝2．【解答】解：过点P作PM⊥OB于M，∵PC∥OA，∴∠COP＝∠CPO＝∠POQ＝15°，∴∠BCP＝30°，∴PM PC＝2，∵PQ＝PM，∴PQ＝2．故答案为：2．16．（3分）（2013•邵东县模拟）如图，△ABC中，∠C＝90°，AD平分∠BAC，AB＝5，CD＝2，则△ABD的面积是5．【解答】解：∵∠C＝90°，AD平分∠BAC，∴点D到AB的距离＝CD＝2，∴△ABD的面积是5×2÷2＝5．故答案为：5．三、解答题（共6道题，满分52分）17．（6分）（2017秋•东昌区校级期中）一个正多边形的一个外角等于它的一个内角的，这个正多边形是几边形？【解答】解：设外角为x°，则内角为3x°，由题意得：x+3x＝180，解得：x＝45，360°÷45°＝8，答：这个正多边形为八边形．18．（8分）（2017秋•新宾县期中）如图，在△ABC中，AD⊥BC于D，AE平分∠DAC，∠BAC＝80°，∠B＝60°，求∠AEC的度数．【解答】解：∵∠BAC＝80°，∠B＝60°，∴∠C＝180°﹣∠BAC﹣∠B＝180°﹣80°﹣60°＝40°，∵AD⊥BC，∴∠DAC＝90°﹣∠C＝90°﹣40°＝50°，∵AE平分∠DAC，∴∠DAE∠DAC50°＝25°，∴∠AEC＝∠DAE+∠ADE＝25°+90°＝115°．19．（8分）（2017秋•虞城县期中）已知：如图AE＝AC，AD＝AB，∠EAC＝∠DAB．求证：△EAD≌△CAB．【解答】证明：∵∠EAC＝∠DAB，∴∠EAD＝∠CAB，在△EAD和△CAB中，∴△EAD≌△CAB（SAS）．20．（8分）（2017秋•东昌区校级期中）如图，点A，D，B，E在同一条直线上，且AD＝BE，∠A＝∠FDE，请添加一个适当条件使△ABC≌△DEF．并加以证明．【解答】解：添加条件：∠CBA＝∠E．证明：∵AD＝BE，∴AD+BD＝BE+BD，即AB＝DE．在△ABC和△DEF中，∴△ABC≌△DEF（ASA）．21．（10分）（2017秋•河北区期中）已知，如图，AB＝CD，DE⊥AC，BF⊥AC，E，F是垂足，DE＝BF．求证：（1）AF＝CE；（2）AB∥CD；（3）AD＝CB且AD∥CB．【解答】证明：（1）∵DE⊥AC，BF⊥AC，∴∠CED＝∠AFB＝90°，在Rt△CDE和Rt△ABF中，，∴Rt△CDE≌Rt△ABF（HL），∴AF＝CE；（2）∵Rt△CDE≌Rt△ABF，∴∠BAF＝∠DCE，∴AB∥CD；（3）∵AB∥CD，AB＝CD，∴∠DCA＝∠AC，∵AC＝CA，∴△DCA≌△BAC（SAS），∴AD＝CB，∠DAC＝∠ACB，∴AD∥BC．22．（12分）（2017秋•东昌区校级期中）如图，在正方形ABCD中，E是AD的中点，F是BA延长线上的一点，AF＝AE，已知△ABE≌△ADF．（1）在图中，可以通过平移、翻折、旋转中的哪一种方法，使△ABE变到△ADF的位置；（2）线段BE与DF有什么关系？证明你的结论．【解答】解：（1）把△ABE绕点A逆时针旋转90°可得到△ADF；（2）BE＝DF，BE⊥DF．理由如下：∵△ABE≌△ADF，∴BE＝DF，∠ABE＝∠ADF，而∠AEB＝∠DEH，∴∠DHE＝∠EAB＝90°，∴BE⊥DF．。

2018年八年级(上册)英语期中试题[附答案解析]

一、听力部分（20分）（一）听小对话，选择图片（共5小题；每小题1分，满分5分）1．When was Jim born?2．Wh ich is Peter's favorite sport?3．Where should the boy put the salt?4．What did Tony have to practice this morning?5．What are the speakers talking about?（二）听小对话，回答问题（共5小题；每小题1分，满分5分）6.What does the man suggest the woman should do?A. Close the window.B. See a doctor.C. Take some medicine.7．How soon will Mr. Brown come?A．In five minutes B．In five hours C．In five days8．What was the weather like in Beijing last Sunday?A．Fine B．Not so good C．Rainy9．Where is the man probably going this afternoon?A．To a hospital B．To a bookstore C．To a museum10．How much did the man pay for the pen?A．Three dollars B．Six dollars C．Ten dollars（三）听长对话，回答问题（共5小题；每小题2分，满分10分）11. What does the woman want to talk about with the coach?A. About the game.B. About coaching.C. About football.12. How long did the coach play professional football?A. For 2 years.B. For 10 y earsC. For10 months.13. How did he break his leg?A. In a football match.B. In a traffic accident.C. Falling off a tree.14. What did he want to do?A. To coach profe ssionalfootball.B. To coach university football.C. To coach high school football.15. Why is he coaching university men now?A. Because he wants to play with young men.B. Because the university wanted him and asked himC. Because he doesn’t want to work with young women.笔试部分（80分）二．完形填空（共10小题；每小题1分，满分10分）阅读下面短文，掌握其大意，然后从A、B、C、D四个选项中选出可以填入空白处的最佳选项。

2018八年级英语上期中试题（含答案）

2018八年级英语上期中试题（含答案）听力部分(听力材料读两遍)一. 听句子，选择句子所包含的信息。

（5分）1.A Last weekend B Next weekend C. This weekend2.A guitar B piano C violin3.A How long B How much C How often4.A Tom is taller than Sam. B Sam is taller than Tom.C Sam is as tall as Tom.5.A I laughed. B I didn’t laugh. C I didn’t stop working.二、听句子，选择正确的答语。

（5分）6. A I’m Eric. B Nice to meet you , too. C I don’t mind them.7. A No, I bought nothing. B Everyone was on vacation.C I often play volley ball.8. A I read books twice a week. B I always exercise. C On Thursday.9. A My father is taller. B My mother has longer hair.C My mother is smarter.10. A I can learn a lot B I watch them on weekends C They’re OK.三、听下面5段对话，选择适当答案。

（5分）11. Where did Tom go on vacation?A To the beachB To the mountainsC To the park12. How often does Lisa drink coffee?A Two or three times a week.B Four times a week.C Four times a day.13.What’s the difference between Lucy and Lily?A Lily likes sports better than Lucy.B Lily has shorter hair than Lucy.C Lily is heavier than Lucy.14.Which clothes store may they go to?A Dream ClothesB Blue MoonC Sun Flower15 What does the woman think of the room?A QuietB NoisyC Hot四、听下面对话，回答第16至第17两个小题。

2018八年级英语上册期中试卷(含答案听力)

第一部分听力部分（共20分）第一节根据所听到的内容，选择相应的图画.(5分)A .math teacherB .Chinese teacherC .English teacher（）5.第二节对话理解，听下面的对话，从A.B.C三个选项中选出最佳答案.（10分）听下面的对话，回答第6小题.（）6.Where did Ben go on vacation?A.To New YorkB.To LondonC.To Beijing听下面的对话,回答第7小题.（）7.What lesson does Lucy have this Sunday morning?A.A tennis lessonB.A dance lessonC.A guitar lesson 听下面的对话,回答第8小题.（）8.What color is Kate’s skirt?A.YellowB.RedC.Black听下面的对话,回答第9小题.（）9.What’s the best in the restaurant?A.The foodB.The serviceC.The floor听下面的对话,回答第10小题.（）10.What did Jean watch yesterday evening?A.A comedyB.A talent showC.An action movie 听下面的对话,回答第11至12小题.（）11.Who went to Shanghai last month?A.JimB.MaryC.Jim’s parents（）12.How many soap operas did Mary watch?A.OneB.TwoC.Three听下面的对话,回答第13至15小题.（）13.Where is Ted from?A.IndiaB.AmericaC.Australia（）14.How does Ted go to school every day?A.He runs.B.He walks.C.He rides his bike. （）15.When does Ted usually arrive at school?A.At about 7:00B. At about 7:20C. At about 7:40 第三节笔录要点,根据你所听到的内容,填写下面的表格,每空不超过三个单词.(5分)Alice’s SundayShe went to her uncle’s 16__________________ with her parents.In the morning She helped her uncle 17___________ the hens.In the afternoon She 18_________ with her cousin Jack.In the evening She ate 19_________，eggs and fish for dinner.After dinner She went home by 20__________.第二部分笔试部分（共100分）一、单项填空(15分)( )21. ---_______does your mother watch the Talk show? ---Once a week.A. How longB. How oftenC. How sonD. How many( )22.Our city is becoming _______ .A.more and most beautifulB.more beautiful and more beautifulC. more and more beautifulD. beautiful and beautiful( )23. Our teacher asked us to_______ a story about the moon.A.make upB.make ofC.make inD.make out ( )24. Do you have _______ to say about this?A.something differentB.anything differentC.different somethingD.different anything( )25. The weather in Guiyang in summer is ___than that in Beijing. They are different.A.coolB.much coolerC.hotD.much hotter ( )26. Do you mind my ______the door. It’s cold outside.A.closeB.closingC.closesD.closed( )27. Of the two coats, she ‘d like to choose the ____one to save money for a book.A.cheapestB.cheaperC.more expensiveD. Most expensive ( )28.---Do you play computer games?---No,_______. I don’t like them at all.A.alwaysB.oftenuallyD.never( )29. Little Tom eats_______food , so he is_______fat .A.much too; too muchB.much too; too manyC.too much; much tooD.too much; too many( )30. Walt Disney was famous _______his cartoons.A.likeB.asC.atD.for( )31. —Do you like your net friend ?—Yes. He is funny. He always makes me _______.A. laughB.to laughughingD. laurghed( )32. If you plan _______a movie, choose Mulan.A.watchB.to watchC.watchingD.watched( )33. What do you_______this new watch?A.think atB.think ofC.think overD.t hink hard( )34. Thanks for ____me to the party.A.inviteB.to inviteC.invitingD.invited( )35. My shoes are cheaper than _______.A.youB.yourC.yoursD.your one二、完形填空（15分）It was the last lesson before 41 holidays. The students 42 very happy. Their English teacher was very happy, 43 .The teacher enjoyed 44 nice games with them. He sang some nice songs, and then he went to the blackboard and wrote “SMILES”45 it. “This is one of the 46 words in English”, he said to the class. The 47 class laughed, and then one girl 48 and said, “Why is it one of the longest words in English?”The teacher said 49 for a while. Then he smiled and said, “Because there is a mile(英里) between the 50 letter and the last. ”（）35.A.a B.an C.the D.much（）37.A.is B.are C.was D.were（）38.A.too B.either C.neither D.also（）39.A.play B.played C.playing D.plays（）40.A.before B.on C.in D.in front of（）41.A.long B.longer C.longest D.short（）42.A.whole B.each C.all D.both（）43.A.stand up B.sit down C.stood up y down （）44.A.something B.anything C.nothing D.everything（）45.A.one B.first C.two D.second三、补全对话（5分）从方框中选择合适的选项补全对话（其中有一项是多余的）Tim ; What’s the best restaurant in town?A. Is it expensive?B. What kind of food do you like?C. But it has the best service ,too.D. It’s the most popular restaurant in town.E. Have a great time.F. Let’s go there.Mary: 46Tim: Oh, any kind of food is okay.Mary: Well,the French Deli is really good.Tim: 47Mary: Yes, it’s the most expensive restaurantin town. 48Tim: Hmm…,And what’s Nick’s Diner like?Mary: It’s cheaper than the French Deli, but the food’s kind of boring.Tim: How about the Curry House?Mary: Oh, that’s a new place. 49Tim: Is the food good?Mary: Yeah,if you like hot curry.Tim: Yeah, I love it! 50 .四、阅读理解（30分）AMr Smith gave his wife (妻子)money every Friday evening. His wife always spent it all the next Wednesday, so that for the next three days she had no money to spend at all. One day Mr Smith asked her, “But how did you spend all that money?”She answered, “I don't know .”So on Friday evening, Mr Smith gave her money together with an exercise book and a pencil. He said to his wife , “Please write down how you spen d the money .”Next Tuesday, his wife had no money again. Mr Smith took the exercise book to see how she had spent it. “I have done what you told me,”she said gladly. She had written “Friday, I got 18 pounds from Mr Smith. ”on the first page, and on the second page, she wrote , “Tuesday, I have spent it all.”（）51.Mr. Smith gave his wife money every _________.A. Monday morningB.Friday eveningC.Friday morningD. Wednesday afternoon（）52.Smith gave his wife an exercise book and a pencil and asked her________.A.to do homeworkB.to draw a picture on itC.to write down how she spent the moneyD.to have a look（）53.Mrs Smith was _________ to do what Mr Smith asked her to .A.happyB.sadC.sorryD.excited（）54.Smith gave his wife money _________ a week.A.onceB.twiceC.three timesD.four times（）55.The story tells us that Mrs Smith was not very_________.A.gladB.tallC.carefulD.healthyB“Dreams may be more important than sleep. We all need to dream.”some scientists say. Dreams take up about one quarter of our sleeping time. People have several dreams each night.Dreams are like short films. They are usually in color. Some dreams are like old films. They come up over and over again. That may be the dreamer worrying about something. Dreaming may be a way of trying to find an answer.Some people get new ideas about their work from dreams. They may have been thinking about their work all day. These thoughts can carry over into dreams.Too much dreaming can be harmful. The more we sleep,the longer we dream. The mind is still at work when we dream. That is why we may have a long sleep and still wake up tired. ( )56. It may be less important to sleep than to _____.A.thinkB.drea mC.workD.study( ) 57. Dreams and films are usually _____.A.very longB.in colorC.about workD.very sad( )58. Why do some people often dream about their work?A.Because they are tired in the daytime.B.Because they not interested in their work.C. Because they may be thinking about their work all day.D. Because they have too much work to do.( )59. The main idea of the story is that_____A.what dream isB.people like to sleepC.dreams are like filmsD.we always remember dreams( )60.Which sentence is RIGHT?A.It is good to sleep longer.B.We will feel tired after a long dream.C.The mind isn’t work when we dream.D.All people can find an answer of the work in the dream.CLittle Tommy was doing very badly in math. His parents had tried everything—tutors , cards, special learning centers—in short, everything they could think of. Finally they tookTommy to a catholic (天主教的) school.After the first day, little Tommy came home with a very serious look on his face. He didn’t kiss his mother hello. Instead, he went straight to his room and started studying. Books and papers were spread out all over the room and little Tommy was hard at work. His mother was surprised. She called him down to dinner and as soon as he finished eating, he went back to his room, without a word. In no time he was back hitting the books as hard as before. This went on for some time, day after day while the mother tried to understand what was happening.Finally, little Tommy brought home his report card. He quietly put it on the table and went up to his room and hit the books. His mom looked at it and to her surprise, little Tommy got an A in math. She could no longer hold her curiosity (好奇心). She went to his room and asked, “Son, what was it? Was it the nuns (修女)?”Little Tommy looked at her and shook his he ad, “No.”“Well then,”she asked again. “WHAT was it?”Little Tommy looked at her and said, “Well, on the first day of school, when I saw thatman nailed (钉) to the plus sign , I knew they weren’t joking.”( )61. Why did Tommy’s parents send him to a catholic school?A. Because he could eat well there.B. Because he could earn more about nuns.C. Because his parents wanted him to do better in his math.D. Because his parents didn’t want him to learn math any more.( ) 62. Tommy’s mother felt surprised that his son _______.A. was still the same as usualB. ate so much at dinnerC. kissed her hello after schoolD. worked hard but said little( )63.“Hitting the books”means “_______”in Chinese.A. 用功B. 捶书C. 发泄D. 振作( )64.The last sentence in the passage shows that _______.A. Tommy felt sorry for the mailB. Tommy was afraid of being nailedC. Tommy didn’t like the plus signD. Tommy liked playing jokes on others( )65. From the passage, we can infer (推断) that _______.A. teachers should be strict with their studentsB. mistaking (误解) might do good sometimesC. a catholic school is much better than other onesD. nuns are good at helping children with五、单词拼写（5分）66.I had a w_________（精彩的）vacation last week and saw many intereting places.67.----What’s your father’s favorite p__________（节目）? ---Animal World.68.For us all,Lei Feng is the e________（范例）that we should learn from.69.His father is t_______（有才能的）,so he is very rich.70.Steve h as some c________（有创造力的）works.We should learn from him.六、根据汉语意思及英语提示翻译句子。

南外初二上考试卷

南外初二期中考试卷II.单选10’21.A team of scientists made_________incredible discovery and ________discovery amazed the world.A.an, theB.the,anC.a,anD.a, the22.The captain discovered __________signs of a fight_______signs of illness on Marie CelesteA.either;orB.both,andC.neither, norD.nor,or23.Which of the following words does not belong to the same category?A.ToasterB.CookerC.HairdryerD.Sink24.Which of the following is a right sentences?A.People are frighting of going into the area.B.Don’t make any noiseC.The houses with furnitures are warmD.Don’t feel panic.Take it easy25.Peter is a mischievous boy(顽皮) and he always makes big trouble in class.As a teacher,you want to give him a lesson.What is not a proper way to say?A.I should talk with Peter.B.I must talk with PeterC.I might talk with PeterD.I need to talk with Peter26.The Obama administration has created_______during his term than the last American president.A.twice jobs moreB.more jobs twiceC.more twice jobsD.twice more jobs27.To complete______work in such a short time.I need ______people.A.four hour’s; two moreB.four hours’; two moreC.four hours’; more twoD.four hour’s; more two28.Which is NOT a right sentence about the aboriginals?A.Aboriginals suffered more than the European settlers.B.People who moved from the Southeast Asia 12,000 years ago were aboriginals.C.The population of aboriginals is becoming smaller and smaller.D.The modern world makes it easier for aboriginals to continue their traditional lifestyle.29.The beggar was first seen ______in the street corner. But in two days, he was discovered ______.He is believed to ______of cold and hunger.A.dying; dead; dieB.die;dying;deadC.dead;die; dyingD.dead;dying; die30.The boy failed to answer this question probably because he was not ______ or he was not given ______to think about.A.quick enough;enough timeB.enough quick;enough timeC.quickly enough; time enoughD.quickly enough; enough time31.The school rules says that students should prepare______ready for the coming class before the second bell rings.A.everythingB.nothing C,anything D.something32.A terrible traffic accident______while I ______in the street.A.happened;was walkingB.happens;was walkingC.happens; am walkingD.was happening;was walking33.Whose job could be designing a plan of a building or how the carpet matches the curtains?A.A chef’sB.An architect’sC.A scientist’sD. A musician’s34.Which is NOT right to say about the supplies on Franklin’s ships？A.They bought many liters of wine to help the sailors who felt sick.B.They bought many kilograms of chocolate to give them energy.C.They bought books and musical instruments for relaxing.D.They bought thousands of liters of lemon juice to drink.35.If anybody ______petrol, he or she ______a stomachache and get ill.A.drinks; will haveB.drinks;hadC.will drink;haveD.drinks has36.As we grow older, our perception(感知) of the world changes______.37.Put the following sentences into the right order to show how we use the nuclear power to make electricity.e the heat to boil water and it produces the steam.b.The stream drives a turbo-generator.c.The generator makes electricity.d.Break the atoms and it causes a chain actione.The chain reaction produces a lot of heat.A.b-e-a-d-cB.a-b-d-c-eC.d-e-a-b-cD.b-c-d-e-a38.The cables are______up______the electricity cannot jump to the ground.A.high; in order toB.highly;so thatC.high; so thatD.highly; in order that39.Which is NOT the right way when asking the way to the newsagent’s?A.Excuse me, do you know where the newsagent’s is?B.Excuse me, could you tell me where there is a newsagent’s?C.Excuse me,I wonder where the newsagent’s is?D.Excuse me,could I get to the nearby newsagent’s?40.Some studies show that students who eat good breakfast stay_____and do______than those who don’t.A.healthy;wellB.more healthy;betterC.healthier; betterD.healthier;goodIII.改错5’41.Jiangsu Opera House,one of pieces of great engineerings, will be completed by the year ofA B C D2016.42.Walk straightly on and take the second turning on the left,the theater is right before you.A B C D43.After looking close at he crime scene(犯罪现场)，the detective found some useful clues.A B C D44.The police were searching the lost child in the woods after he was reported missing.A B C D45.Most of us believe that it is the lead poisoning who caused the deaths of Franklin and his men.A B C D46.The general affect of the painting is so amazing.It is incredibly beautiful.A B C D47.This piece of equipment isn’t belong to anybody. It’s ours and we should use it with great care.A B C D48.The explorers looked for the lost treasure anywhere, but unluckily, they found nothing.A B C D49.Take the wrong route to the mysterious region is the main reason for their disappearance.A B C D50.The aboriginals lived in Australia completely undisturbed since James Cook arrived inA B C D1770.IV Cloze Test.10’When I was 8 years old, I once decided to run away from home. With my suitcase packed and some sandwiches in a bag, I start ed for the front door and said to Mom, “I’m leaving.”“If you want to 51 , that’s all right,” she said. “But you came into this home without anything and you can leave the same way.” I 52 my suitcase and sandwiches on the floor heavily and started for the door again.“Wait a minute,” Mom said. “I want your 53 back. You didn’t wear anything when you arrived.” This really angered me. I tore my clothes off—shoes, socks, underwear and all—and all, then I 54, “Can I go now?” “Yes,” Mom answered, “but once you close that door, don’t expect to come back.”I was so 55 that I slammed the door and stepped out of my house.56 I realized that I was outside, with nothing on. Then I noticed that down the street, two neighbor girls were walking toward our house. I ran to 57 behind a big tree in our yard at once. After a while, I was sure the girls had passed by. I ran to the front door and banged on it loudly.“Who’s there?” I heard.“It’s Billy! Let me in!”The voice behind the 58 answered, “Billy doesn’t live here anymore. He ran away from home.” Glancing(扫视) behind me to see if anyone else was coming, I begged, “Aw, c’mon, Mom! I’m 59 your son. Let me in!”The door inched open and Mom’s smiling face appeared. “Did you change your 60 about running away?” she asked.“What’s for supper?” I answered.51. A. stay home B. go by C. move around D. run away52. A. pushed B. picked C. threw D. pulled53. A. bag B. clothes C. sandwiches D. suitcase54. A. explained B. suggested C. continued D. shouted55. A. angry B. sorry C. frightened D. happy56. A. Certainly B. Naturally C. Suddenly D. Possibly57. A. play B. hide C. rest D. wave58. A. house B. tree C. door D. yard59. A. also B. still C. even D. already60. A. point of view B. way C. route D. decisionVI.词汇25’A.首字母完成句子。

2018八年级英语上学期期中试卷

一、听力（共20小题，每小题1分，计20分）A. 听对话下面你将听到10小段对话，请根据所听到的对话，选出正确的选项，将其序号填入题前的括号内。

每段对话读两遍。

( ) 5 . What is Peter going to do? A. He is going to chat with his friend.B. He is going to mend(修) his bike.C. He is going to use his computer. ( ) 6. What do you know about the woman’s daughter?A. She is shy.B. She’s polite.C. She’s friendly.( ) 7. What are they doing?A. They’re having dinner.B. They’re shopping.C. They’re having a rest.( ) 8. Which activity does the boy think is the most dangerous?A. Diving.B. Camping.C. Skiing.( ) 9. How will they go to the party? A. On foot. B. By bike. C. By taxi.( )10. Whose dog is it?A. It’s Andy’s father’s.B. It’s Andy’s grandfather’s.C. It’s Andy’s.B. 听下面的对话和一篇短文，每段对话和短文后有几个小题，请根据你所听到的内容。

从所给的A、B、C三个选项中选出一个适当的答语,将其序号填入题前的括号内。

每段对话或短文读两遍。

听下面一段对话，回答11～12题。

( )11. What’s wrong with David?A. He has problems with his math homework.B. He can’t understand his mother.C. He has no time to play computer games.( )12. Why does he have the problem?A. Because he spends too much time on computer games.B. Because he doesn’t like math at all.C. Because his teacher is not good at all.听下面一段对话，回答13～15题。

2018【南外】【数学】初二上期中试卷分析

| 用科技推动教育进步咨询电话：10108899
南京学而思教研中心出品 2018【南外】初二（上）数学期中考试分析
分析人：王丹
1、难度分析：
本试卷整体难度正常，试题结构均衡，基础题、中档题、压轴题比例维持在7：2：1，题型几乎都有过练习。

选择第8题、填空第18题、解答第23题属于易错题，填空19题难度稍大，解答第26题最后一问和第27题最后一问稍有难度。

只要平时基础较扎实，考到90分以上不难，下面给出一个参考分数：良好成绩：90
优秀成绩：95
2、模块分析
模块分值
全等三角形 8
轴对称图形 44
勾股定理 20
实数 28
3、易错题分析
【第8题】①属于全等判定易错题型，需要会画反例。

【第18题】直角三角形分类讨论，同时需要用到勾股定理计算。

【第23题】除了需要掌握轴对称的作图，还需要想到分类讨论，两种情况。

4、典型题分析（常见中档题+压轴题）
【第19题】本题综合性较强，知识点结合了等腰直角三角形的性质、判定，
三线合一，最重要的是角平分线的应用。

【第26题】最后一问考察分类讨论，当然也要考虑到c 是最长边，三角形三
边关等条件的限制。

【第27题】除画图需要分类思想，也考察了角平分线模型的应用，属于中难
题。

【初二英语试题精选】2018年秋季八年级英语上册期中调研试题(含答案含听力)

2018年秋季八年级英语上册期中调研试题(含答案含听力) COM 座号-Once a weekA．How long B How often C How soon D How many( )36When the Greens moved into the new house last week,____ was dirty, so they did a big cleaningA somethingB everythingC anythingD nothing( )37 The weather in Guiyang in winter is ___than that in Harbin They are differentA．cool B much cooler C hot D much hotter( )38 It’s bad for your eyes _____puter games too much A．plays B to play C play D to playing( )39—Have you heard of ______ about Jeremy Lin (林书豪)？— Yes He did quite well in the last NBA basketball matchA anything excitingB something interestingC anything difficultD something boring( )40 If you ______ for your favorite TV programs, you will feel sleepyA stay upB set upC stay atD pick up( )41 I feel like ______ in the riverA swimmingB to swimC swimD swiming( )42 When winter es, the days get_______A short and shortB shorter and shorterC long and longD longer and longer( )43 No one can make us _____ quiet because we are very excitedA keepB to keepC keptD ke eping( )44 Can you finish ____the book in about a week?。

广东省深圳市20182019学年南山二外上学期八年级期中考试英语试题卷

广东省深圳市20182019学年南山二外上学期八年级期中考试英语试题卷A. It’s very big.B. It’s quite small.C. It’s not too big.( ) 7. What is Tom going to do on the farm?A. To feed animals.B. To sell fruits.C. To pick fruits.下面请听第三段对话，回答8-9两个问题。

( ) 8. How soon will Mr. Smith be back?A. In two hours.B. In a week.C. In one hour.( ) 9. What’s Ben White’s telephone number?A. 135462798.B. 135462789.C. 135642789.ⅲ听两篇短文，每篇短文播放后有三个问题，请根据所听到的问题选择正确的答案。

（短文念两遍）（共6小题，每小题1分）下面请听第一篇短文，回答10-12三个问题。

( ) 10. What do Americans like to eat?A. Hamburgers.B. Dumplings.C. Fish.( ) 11. What do some fast-food restaurants also sell?A. Fruit.B. Vegetables.C. Fish, sandwiches, soft drinks and so on.( ) 12. Why are fast-food restaurants very popular?A. Because the environment is comfortable.B. Because the service is fast and the food is not dear.C. Because the waiters there are very polite.下面请听第二篇短文，回答13-15三个问题。

2017-2018年江苏省南京外国语学校八年级上学期物理期中试卷和解析

2017-2018学年江苏省南京外国语学校八年级（上）期中物理试卷一、选择题（本题共12小题，每小题2分，共24分）1．（2.00分）关于声现象，下列说法正确的是（）A．中考期间，学校路段禁止汽车鸣笛，这是在传播过程中减弱噪声B．声音在真空中传播的速度是340m/sC．用超声波粉碎人体内的结石，说明超声波能传递能量D．发声体的振动频率越高，响声越大2．（2.00分）如果我们看见物体振动，却听不见声音，下列分析的原因不可能的是（）A．发声体的振幅太小B．发声体振动太慢C．发声体离我们太远D．此时空气不能传播声音3．（2.00分）下列图中光与光学现象的描述或解释正确的是（）A．甲图中，物体通过小孔成的是倒立的虚像B．乙图中，桥在水中的“倒影”可用光的反射来解释C．丙图中，白光通过三棱镜会发生色散，紫光外侧的不可见光具有热效应D．丁图中，发生漫反射后的光线杂乱无章不遵循光的反射定律4．（2.00分）下列四幅图对应的应用解释正确的是（）A．气象台用超声波来预报台风B．汽车导航仪利用次声波导航C．验钞机利用荧光物质在红外线照射下能够发光的原理工作D．夜视仪通过识别不同温度的物体辐射的红外线进行侦察5．（2.00分）“在探究声音的产生”活动中，甲、乙、丙、丁四位同学分别设计并完成了图中的四个实验，活动后他们彼此交流了自己的活动情况，各自的表述如下：①甲图中，用力敲打鼓面时，看到鼓面上的纸屑跳起来②乙图中，用同一个塑料片以相同的速度划过疏密不同的梳齿，听声音变化③丙图中，把发声的音叉放入水盆中，看到音叉激起水花④丁图中，用力吹一根吸管，并将它不断剪短，声音发生变化请你对他们的活动进行简单评估，认为能达到实验目的是（）A．①③B．①②C．①②③D．①③④6．（2.00分）下列关于物态变化的说法正确的是（）A．春天，河里冰雪消融，是凝固现象B．夏天，冰糕周围冒“白气”，是汽化现象C．冬天，温暖的室内窗玻璃变模糊，是液化现象D．秋天，早晨花草上出现的小露珠，是熔化现象7．（2.00分）下列温度数据或描述与事实相差较大或不正确的是（）A．人的正常体温是36.8°CB．冰箱冷藏室温度约为零下10°CC．洗澡水的适宜温度约40°CD．冬天户外用温度计测量铁块和木块的温度，两者温度相同8．（2.00分）当你照镜子时，你会在镜子里看到另外一个“你”，镜子里的这个“你”就是你在平面镜中所成的像。

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6．下列说法正确的是（） A．物体吸热，温度一定升高 C．非晶体熔化时温度不变
B．铁、海波、萘都是晶体 D．晶体的凝固点比熔点低
7．下列说法中正确的是（） A．声音从空气中传到水中，传播速度变小 B．声波和光波都可以在真空中传播 C．光可以在真空中传播，只是传播速度最小 D．声波和光波遇到障碍物时都会发生反射现象
南外期中试卷八年级物理 6 / 9
31．小红在学习了光学的相关知识后，在暗室进行了一些实验探究．
A．可以通过固体传播 C．是由物体振动产生的
B．不能在真空中传播 D．是以波的形式传播的
2．下列有关声现象的说法中，正确的是（） A．“禁止高声喧哗”中的“高”是指声音的音调高 B．声波能传递信息，也能传递能量 C．只要物体在振动，我们就一定能听到声音 D．在街头设置噪声监测仪，属于在声源处减弱噪声
10．潜水员从水下向水面看，看到一条鱼及其所成的像，如图，可以判断（）
A．a 是 b 鱼通过水面形成的虚像 C．b 是 a 鱼通过水面形成的虚像
B．a 是 b 鱼通过水面形成的实像 D．b 是2 / 9
11．如图，乙容器内盛有水，甲容器盛有下表所列的一种液体．在一个标准大气压下，对甲容器的底部持续加热，最终发现乙容器内的水沸腾了，则甲容器内盛的液体是（）
南京外国语中学 2018~2019 学年第一学期期中试卷八年级物理
一、选择题（本题共 12 小题，每小题 2 分，共 24 分．每小题给出的四个选项中只有一个选项正确）
1．如图所示，将悬挂的乒乓球轻轻接触正在发声的音叉，观察到乒乓球被音叉多次弹开；声音消失，乒乓球便会停止运动. 此现象表明声音（）
19．太阳能是一种清洁、无污染、可再生能源，在现代生活、技术中有着广泛的应用．太阳能电池板可以将光能转化为_______能，植物进行光合作用将光能转化为______能．
20．身高 1.4m 的王芳同学站在竖直放置的平面镜前 3m 处，平面镜高 0.5m．则她的像到平面镜的距离为________m，镜中________成完整的像（选填“能”或“不能”）．若她向平面镜走近 1m，则镜中的像与她的距离减小了_______m．现将一木板放在镜子后面 1m 处，如图所示，这时她__________（选填“仍能”或“不能”）在镜中看到自己的像．
物质
液态氨
酒精
水
煤油
沸点/℃
-33
78
100
150
A．酒精
B．煤油
C．水
D．液态氨
12．如图所示，用自制针孔照相机在不同位置观察烛焰，有以下四句说法：①薄膜上出现烛焰的像是倒立的，②薄膜上烛焰的像可能是缩小的也可能是放大的，③保持小孔和烛焰的距离不变，向后推动内筒，增加筒长，烛焰的像变大，④保持小孔和烛焰的距离不变，向前推动内筒，烛焰的像更明亮．对于这四句说法，其中正确的是（）
（1）安装实验器材时，应按照________________（选填“自上而下”或“自下而上”）的顺序进行；（2）某同学在读温度计示数时如图乙所示，请指出其错误：______________________，这样读数会偏____（选填“大”或“小”）：（3）由图丙可知该物质熔化持续了____分钟，第 5 分钟时，物质的状态是______态，第 7 分钟时，物质的状态是_______态，该物质沸点是_______℃；（4）根据图丙，从吸放热和温度变化的角度分析，该物质熔化和沸腾过程具有的共同特点是_________________________________________．
18．星期天，小明约小刚逛公园，游玩时看见了一些现象，他俩从物理角度议论起了下列问题．（1）阳光下，绿树成荫，他们看到地上有一些圆形的光斑，这些光斑是__________（选填 “树叶的影子”、“树叶的实像”、“太阳的虚像”或“太阳的实像”），这是由光的__________ 形成的．（2）公园中红色的花朵，是因为花朵__________（选填“反射”或“吸收”）红色光的缘故．（3）到了晚上，小刚看见湖水中的月亮，湖中的月亮是光的反射形成的________像（选填 “实”或“虚”），水中的月亮与天上的月亮相比______________（选填“变大”、“变小”或 “一样大”）．（4）若湖中的水深 1m，则水中月亮到水面的距离_______1m．（选填“大于”、“小于”或 “等于”）
24．某声源振动一次的时间是 2.5×10﹣5s，则该声源振动的频率是__________，人耳_________ （选填“能”或“不能”）听到．
三、作图题（每题 2 分，共 6 分） 25．你能解释 P 点的青蛙为什么“坐井观天，所见甚小”吗？请在图（a）中用光路图画出青蛙看到天空的范围，用阴影表示出来．
26．现在时刻是下午 3 点 40 分，请在图（b）中画出此刻从时钟正对面的镜子里看见的时针和分针的位置．（说明①注意分针要比时针长；②时针只要画在对应的区间范围内即可．）
27．根据平面镜成像特点作出图（c）中物体 AB 在平面镜中的像 A＇B＇．
南外期中试卷八年级物理 5 / 9
四．实验题（每空 1 分，共 31 分） 28．以下有关声音的实验：甲：放在钟罩内的闹钟正在响铃，抽去钟罩内的空气，铃声逐渐减小；乙：在衣架的挂钩上系上细线，细线的两端分别绕在两根手指上，再用手指堵住耳朵，敲击衣架，可以听到很清晰的声音；丙：改变钢尺伸出桌面的长度，用相同的力拨动，两次听到的声音不同：请你说出上述实验分别在研究什么问题：甲：___________________________________________________________________；乙：___________________________________________________________________；丙：___________________________________________________________________．
南外期中试卷八年级物理 1 / 9
5．下列是我国北方冬季发生的一些与物态变化有关的现象，分析不正确的是（） A．水蒸气在树枝上凝华成冰晶，形成雾凇 B．屋顶的积雪会熔化成水，流到屋檐下凝固成冰锤 C．戴眼镜的人从室内走到室外，由于水蒸气液化，眼镜片上会起雾 D．邻居家孩子堆的雪人因发生升华会逐渐变小
南外期中试卷八年级物理 4 / 9
21．中国科学家屠呦呦获得 2015 年生理医学诺贝尔奖，这是中国在科学领域获得的诺贝尔首奖，具有突破性的意义．她回忆当年带领课题小组实验尝试加热青蒿水溶液使其沸腾，从而去除水份以提取药物，做了大量实验但并没有发现有效结果．她猜想：可能在高温的情况下，破坏了青蒿里面的有效成分，于是改为乙醚提取．最终成功地从青蒿乙醚溶液中提取出有效物质，命名为青蒿素．（1）青蒿素的提取是利用乙醚的____________（选填“熔点”或“沸点”）较低．（2）我们可以取一支大注射器，拉动活塞使注射器里吸进一些乙醚，用橡皮帽把注射器的小孔堵住，向外拉动活塞，注射器里的液态乙醚慢慢消失，这是一种________现象（填物态变化名称）；然后反向推动活塞，观察到慢慢会有液态乙醚出现，这表明用__________方法可以使气体液化．
8．下列现象中由于光的直线传播而形成的是（）
A．湖面的倒影
B．“折断”的铅笔
C．地面的人影
D．雨后的彩虹
9．一只小鸟在平面玻璃幕墙前飞来飞去，欣赏它自己在幕墙中轻盈的“身影”，以下描述正确的是（） A．“身影”始终和小鸟一样大 B．小鸟靠近幕墙过程中，“身影”远离幕墙 C．小鸟远离幕墙过程中，“身影”逐渐变小 D．“身影”到幕墙的距离大于小鸟到幕墙的距离
A．①②③④
B．①③④
二、填空题（每空 1 分，共 39 分）
C．①②
D．①③
13．上课时，老师的讲话声是通过___________传入学生耳中的，当教室外面出现嘈杂的声音时，我们总是关上门窗，这是在__________减弱噪声，物理学中，用声强级来客观描述声音的强弱，它的单位是___________．
22．若某星球发出的光需要一年（一年以 365 天计算）才能到达地球，则该星球到地球距离大约是_________m（用科学计数法表示，保留两位小数）．月球与地球的距离约 38 万千米，则地球发射一束激光，经过_________s 可到达月球．（保留两位小数） 23．如图是检查视力时平面镜、被测者和视力表的位置关系示意图．若平面镜距视力表 3m 远，该视力表要求被测者在 5m 远处检测，则人应坐在离视力表__________m 远处．现医生指着视力表上的“E”字，则被测者应向她的____________（选填“左方”或“右方”）指才正确．
15．下列物态变化中：①洒在地上的水慢慢变干；②放入衣箱中的樟脑球变小；③冬天玻璃窗上形成的“冰花”；④出炉的钢水变成钢锭；⑤河水结冰；⑥早晨草地上的霜．其中属于凝华的是__________________．属于吸热过程的是______________________（填写序号）．
16．普通温度计是用来测量物体温度的，它是利用测温液体的_____________原理制成的；如图所示，a、b 两支温度计的读数分别为 a：_________℃，b：_________℃．
14．学习声现象后，某同学将喝饮料的吸管剪成不同的长度，并用胶带将吸管底部密封，然后排在一起，如图所示，对着管口吹，由于____________（选填“空气柱”或“吸管”）的振动就会发出声音．管的长短不同，发出的声音的音调就不同，从长管到短管，声音的音调变_________（选填“高”或“低”）．
南外期中试卷八年级物理 3 / 9
17．请完成以下对一些现象的解释：（1）下雨天总是先看到闪电后听到雷声，这是因为_____________________________．（2）目前，全球气候逐渐变暖，这是___________效应（选填“温室”或“热岛”）不断加剧带来的后果；臭氧层是地球的“保护伞”，它能吸收绝大部分来自太阳的________________．（3）在冬天雪后融雪时天气有时比下雪时还冷，这主要是因为雪_______________；人工降雨时利用干冰________________使云层中水蒸气的温度降低最终形成降雨．（4）不能用水银温度计测北方冬天气温，是因为水银的凝固点相比北方的最低气温要 _______（选填“高”或“低”）．（5）参加青海玉树地震救援工作的队员发现，在当地烧水，水在 80℃左右就沸腾了，这是因为当地的气压较_________（选填“高”或“低”）；若继续加热，则水的沸点_________ （选填“升高”、“不变”或“降低”）．