2018-2019年江苏省南京市鼓楼区金陵汇文中学八年级下学期第二次月考试卷 (解析版)
2018-2019年江苏省南京市鼓楼区金陵汇文学校八年级下学期期中考试英语试卷
2018-2019学年江苏省南京市鼓楼区金陵汇文学校八年级下学期期中考试英语一．听力（略）二、单项选择（共15小，每小1分，满分15分）从A，B，C，D四个选项中，选出可以填入空白处的最选项，并在答题卡上将该项涂黑。
1.—Are you playing online game now?—Yes.is called New Land.A.an; TheB. a;TheC. an; AD./;The2.Nick is a book lover and he always brings home many books to read the library.A. InB.forC.byD.from3.—Excuse me, sir. You can take photos here. Look at this.—Sorry. I the sign.A. haven't noticedB. don't noticeC. didn’t noticeD. won't notice4.—So kind of you to give me a ride to the station.—.A. It doesn't matterB.Never mindC. With pleasureD.My pleasure5. Hurry up! The class for about five minutes.A. have begunB. has begunC.has been onD.began6.advice you’ve given me! I really appreciate your help.A. How usefulB. What usefulC. What a usefulD.How a useful7.—Where is your father?—He has flown to Shanghai.He has Pudong since last Friday.A. gone toB. been inC. been toD. flown to8. Which book doesn't belong to the four great classical Chinese novels?A.Journey To the West C.Dream of RedB.Three Kingdoms dy White Snake9. I never drive to walk.It’s only walk from home to school.A. 10minutes’B.10-minuteC.10-minutesD. 10-minute's10.Here's the topic. When did your mother your father?A. get marriedB.marryC.marry toD.marry with11.Yesterday I missed the last bus home. , there was a public bike nearby.A. UnluckyB. LuckyC.UnluckilyD. Luckily12.You’ll soon fly back to see your daughter.I think you be very happy now.A. CanB.mustC.have toD. may13.Never refuse a present from the lord if you one.Be grateful.A. MakeB. acceptC. orderD. receive14.All of us can hardly know so much waste waterA. how to do with C. what to deal withB. what to do with D. how dealing with15.—Did you have a good May Day holiday?—The buffet in the hotel was terrible and made me sick.A.I'm afraid not.B. I'm not sureC.Of courseD. I hope so三、完形填空（共10小题，每小题1分，满分10分）阅读下面短文，从短文后所给各题的四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
江苏省南京市鼓楼区金陵汇文学校2024届数学八年级第二学期期末考试试题含解析
江苏省南京市鼓楼区金陵汇文学校2024届数学八年级第二学期期末考试试题注意事项：1．答卷前，考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。
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一、选择题(每小题3分,共30分)1．如图，在正方形ABCD 中，点P 是AB 上一动点(不与A ，B 重合)，对角线AC ，BD 相交于点O ，过点P 分别作AC ，BD 的垂线，分别交AC ，BD 于点E ，F ，交AD ，BC 于点M ，N.下列结论：①△APE ≌△AME ；②PM ＋PN ＝BD ；③PE 2＋PF 2＝PO 2.其中正确的有( )A ．0个B ．1个C ．2个D ．3个2．漳州市政府为了鼓励市民绿色出行，投资了一批城市公共自行车，收费如下：第1小时内免费，1小时以上，每半小时收费0.5元（不到半小时按半小时计）．马小跳刷卡时显示收费1.5元，则马小跳租车时间x 的取值范围为（ ） A ．1＜x ≤1.5B ．2＜x ≤2.5C ．2.5＜x ≤3D ．3＜x ≤43．如图，边长2的菱形ABCD 中，60A ∠=，点M 是AD 边的中点，将菱形ABCD 翻折，使点A 落在线段CM 上的点E 处，折痕交AB 于点N ，则线段EC 的长为( )A 6B 61C 7D 714．使用同一种规格的下列地砖，不能进行平面镶嵌的是（ ）A ．正三角形地砖B ．正四边形地砖C ．正五边形地砖D ．正六边形地砖5．如图是一张月历表，在此月历表上用一个长方形任意圈出22⨯个数（如17，18，24，25），如果圈出的四个数中最小数与最大数的积为153，那么这四个数的和为（ ）1 2 3 4 56 78910 11121314 15161718 1920 2122 23 2425262728 293031A ．40B ．48C ．52D ．566．用反证法证明命题“四边形中至少有一个角不小于直角”时应假设（ ） A ．没有一个角大于直角 B ．至多有一个角不小于直角 C ．每一个内角都为锐角 D ．至少有一个角大于直角7．如图，ABCD 的对角线AC 与BD 相交于点O ，90BAC ∠=︒，6AC =，8BD =，则CD 的长为（ ）A ．7B ．5C ．43D ．108．如图，已知菱形ABCD ，∠B=60°，AB=4，则以AC 为边长的正方形ACEF 的周长为（ ）A ．16B ．12C ．24D ．189．如图①，在正方形ABCD 中，点E 是AB 的中点，点P 是对角线AC 上一动点。
2016-2017 学年南京鼓楼区金陵汇文八下第二次月考英语卷+答案
2016 – 2017 初二下金陵汇文五月月考卷一、单项选择（共15小题，每小题1分，满分15分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1. --- It’s kind ______ you to show me the way to the museum. Thank you very much.--- That’s OK. It’s really difficult ______ a new comer to find it.A. for, ofB. for, forC. of, forD. of, of2. If you want to be ______ in the future, you must work harder than before.A. someoneB. oneC. anyoneD. everyone3. --- Daisy, go and see what is happening to the windows.--- Nothing serious. The heavy rain is beating ______ them.A. againstB. acrossC. throughD. above4. Some people do not understand the importance of health ______ they lose it.A. whenB. afterC. whileD. until5. --- What ______ will you win after winning the competition in the program Stay to the end?--- A free trip to Bali Island.A. purposeB. prizeC. priceD. point6. Most parents ______ their children to have a bright future, so they pay a lot for their children’s education.A. excuseB. expressC. experienceD. expect7. --- Mum, I have got a new job and I can earn over 8,000 yuan every month.--- Really, that sounds ______ to be true.A. too goodB. so goodC. such goodD. good enough8. Although you may meet some difficulties in learning English, you should never ______.A. put upB. get upC. give upD. grow up9. Look! ______ great fun the children had in the playground!A. What aB. WhatC. HowD. How a10. Are you free next week, Sandy? I want to visit you ______ next week.A. sometimeB. some timeC. sometimesD. some times11. Uncle Wang ______ as a computer engineer for 5 years, and now he is teaching in a secondary school.A. workedB. has workedC. worksD. was working12. The underline letter “o” in the word “______” has a different pronunciation from the others.A. donateB. closelyC. projectD. Roman13. --- I called you but you didn’t answer me.--- Oh, sorry, I, together with friends, ______ the 3-D film Beauty and the Beast at the cinema.A. has watchedB. have watchedC. was watchingD. were watching14. --- My mother has canceled（取消）the family trip to the Summer Palace.--- ______. You are looking forward to it.A. It doesn’t matterB. It’s unwise of your mumC. Take it easyD. You must be sorry about it15. --- He never tells us he can make model planes.--- In fact he can and often wins in the competitions. ______.A. Actions speak louder than wordsB. Many hands make light workC. No pain, no gainD. The early bird catches the worm二、完形填空（共10小题，每小题1分，满分10分）After their business trip, John and Mary returned happily, hopping to see their lovely children. As they drove into their home town, they noticed a lot of ___16___, and they went off their usual way to see what it was. They found a house on fire. Mary said, “Oh, well, it isn't our fire, let's go home.”But John ___17___ closer and screamed, “That was Fred Jones’ home. He wouldn’t come home from work yet, maybe there is something we could do.”“It has ___18___ to do with us,” Mary disagreed.But John drove up and stopped. A woman on the lawn was screaming, “The children! Get the children!” John shouted at her, “ Tell us where the children are!”“In the ___19___,” cried the woman, “down the hall and to the left.”Though Mary disagreed, John ___20___ into the bathroom that was full of smoke and terribly hot. He found the door and two children. As he left, he could hear some more crying. He passed the two badly scared children onto waiting arms and ___21___ how many more children were down there. They told him ___22___ more and Mary caught his arm and cried, “John! Don't go back! It's dangerous! That house will fall down any second.”But he ran into the smoke-filled hallway and at last he found both children. As he climbed up the stairs, the thought went ___23___ his mind that there was something strange about the little bodies next to him, and at last when they came out into the sunlight and fresh air, he found that he had just ___24___ his own children.The baby-sitter（保姆）working for John and Mary had left their children at Fred Jones’ home ___25___ she was doing some shopping.16. A. light B. smoke C. water D. rubbish17. A. ran B. walked C. drove D. rode18. A. everything B. anything C. nothing D. something19. A. bathroom B. kitchen C. bedroom D. hall20. A. turned B. searched C. fell D. rushed21. A. thought B. said C. asked D. found22. A. five B. four C. three D. two23. A. across B. through C. up D. onto24. A. saved B. found C. lost D. missed25. A. while B. after C. so D. until三、阅读理解（共15小题，每小题1分，满分15分）AYellow DressBy Janet LeeMary had a yellow dressBought from the department store.It looked as beautiful as the moon,And as bright as the sun.Mary wore all the timeThe yellow dressI felt so right.Every day from day to nightI saw her in the dress so bright."Buy me a yellow dress,"I cried to Mom and Dad,"As beautiful and brightAs the dress the girl living near has!"I cried and cried and cried,Until they said with sad eyes,"We need food for your baby sister,And clothes for your coming brother."Since then I've learnedMary's yellow dress Is better to dream ofThan to ask for.26. From the poem, we know that Mary and the writer may be ______.A. classmatesB. relativesC. neighborsD. sisters27. Why does the writer say, “Every day from day to night / I saw her in the dress so bright” ?A. The writer lived with MaryB. The dress had sun shapes on it.C. The writer liked the dress very much.D. The dress was Mary's school uniform.28. What did the writer's parents mean by their words?A. They did not like the yellow dress.B. They did not have money for a dress.C. They already had a dress for her baby sister.D. They would ask Mary where to buy the yellow dress.BWilliam Shakespeare is one of the greatest writers in English literature. His plays can be divided into three categories: histories, tragedies（悲剧）and comedies. Shakespeare wrote eighteen comedies, although two were lost. These comedies usually have happy endings and a light-hearted tone and style that are quite different from his tragedies.All of Shakespeare’s comedies have five acts and the most important or excitingpoint always takes place in the third act. The hero does not appear until after othercharacters have talked about him. Shakespeare had some themes that he usually wroteabout: the fight between good and bad, love’s great effect on people, and the differencebetween first appearance and a person’s true personality or face. Shakespeare alsowrote his play in a certain style. For example, Shakespeare used words in such a cleverand humorous way that they had more than one meaning. Some of the characterschanged their appearances so that people didn’t know who they were.Even though the tone is lighter in these plays. Comedies in Shakespeare’s day were quite different from modern-day comedies because their purpose was not to make people laugh. Shakespeare’s comedies are very emotional（有感染力的）and often include serious topics to think about.29. How many Shakespeare’s comedies can people enjoy now?A. 18B. 16C. 5D. 230. Which word has the same meaning as the underlined word “categories” in Paragraph 1?A. typeB. partsC. copiesD. pages31. Which sentence is WRONG according to the passage?A. All Shakespeare’s comedies have five acts.B. Shakespeare’s plays are written in a certain style.C. The purpose of Shakespeare’s comedies is to make people laugh.D. The fight between good and bad is one of the themes Shakespeare wrote about.C“The two nurses who put private locks on public-use bikes disturbed thepublic order,” said Liu Lin, a lawyer at Beijing Shuangli Law Firm, becauseit prevented other people from using the bikes.Those who intentionally damage property（故意破坏财产）may face a5-day administrative detention（行政拘留）, according to the Law on PublicSecurity Administration Punishments.Tang Ke from the publicity office of OFO, the company that owns the bikes, confirmed the news and said further investigation（调查）was underway.The market for public-use bikes, which are stored along sidewalks and can be used through an app - hasboomed in China since the middle of last year. The new mode of transportation has brought a greener and more convenient mode of urban transportation, but the mode has also caused many problems including illegal（非法的）parking, theft and vandalism（故意破坏）. Parking violations（违规）are also a common problem, followed by violation of traffic rules.“Once users scan the app and click ‘accept’ when they rent the bike, they have signed an agreement with the service provider and should follow the rules,” Liu said.OFO has introduced a blacklist banning users who break its rules.Many cities such as Beijing, Shanghai and Shenzhen are proposing draft regulations to manage the market for public bikes. The Shenzhen traffic police department has also announced fines for the illegal parking of bikes.32. Which of the following about two nurses is NOT true?A. They put private locks on public bikes.B. What they did disturbed the public order.C. They faced a 5-day administrative detention.D. What they did prevented others from using the bikes.33. Using public bikes has caused many problems EXCEPT ______.A. renting through an appB. stealingC. breaking traffic rulesD. illegal parking34. In Shenzhen, if you park the pubic bikes in some wrong places, ______.A. you will be on the blacklistB. you will be fined because of itC. you can’t use public bikes any moreD. you will face a 5-day administrative detention35. The best title of the passage might be ______.A. The Service of Public BikesB. The Market for Public BikesC. The Importance of Public BikesD. The Problems in Using Public BikesDWhen you cough or sneeze, you’d better turn your head away from others and cover yourmouth with the full part of your hand. And then, you should say, “Excuse me.”This seems so simple, but it is surprising how many kids have never been told to do this.Actually, I notice adults all the time cough and sneeze in public without putting a hand over the mouth. One important thing I point out to the kids is that after they sneeze or cough on their hands, they should wash their hands as soon as possible. If not, they will be passing those germs（病菌）along to everything and everyone they touch.If you come to a door and someone id following you, hold the door. If the door opensby pulling, pull it open, stand to the side, and allow the other person to pass through first,then you can walk through. If the door opens by pushing, hold the door after you pass through.After a few weeks of seeing kids try to get through doors in the school and watching them enter restaurantsas the door hit other people, I knew I had to discuss the problem with my students. Teaching them small acts of kindness, such as letting someone else go through a door first as they hold it open, may seem unimportant, but it can go a long way toward helping students realize how to be polite and thank others. Once they've been told, they're halfway there.When we have to go up moving stairs, we will stand to the right. That will give otherswho are in a hurry a choice of walking up the left-hand side of the moving stairs. When weare going to enter a lift, the underground, or a doorway, we will wait for others to exitbefore we enter.After college when I moved to London, I was surprised at how polite everyone was in the subways. I was even more touched when I traveled to Japan. In both places, people made effort to make way for others. On moving stairs, everyone stood to the right and walked to the left. On lifts, everyone would stand over to the side and allow others to exit before they would begin to enter.36. When you cough or sneeze, you should ______.A. touch everythingB. cover your mouthC. point out to the kidsD. pass the germs to others37. If you come to a door and someone is following you, you'd better ______.A. hold the doorB. pass throughC. close the doorD. stand to the side38. Why should we stand to the right of moving stairs?A. Because it’s dangerous to stand to the left.B. Because it’s a traffic rule which we must follow.C. Because we must wait for others to move first.D. Because we should make way for people in a hurry39. From the passage we can know the writer is a ______.A. doctorB. travelerC. parentD. teacher40. The passage is mainly about ______.A. the rules of acts in publicB. the ways of communicationC. the problems of meeting peopleD. the knowledge of social life四、填空（共20小题，每小题1分，满分20分）A)根据括号中所给的汉语写出单词，使句子意思完整正确。
江苏省南京市金陵中学龙湖分校2018-2019年八年级第二学期学情调研(4月)英语试题(有答案)
金陵中学龙湖分校2018—2019学年第二学期八年级英语学科学情调研试卷2019.4一、单项填空（共15小题, 每小题1分, 满分15分）1. ——Simon has gone abroad to have European tour.——Oh, really? It must be unusual trip for him.A.an; aB. a; anC. a; aD.an; an2. ——What beautiful flowers! Spring is the best time flowers.——I just can't stop photos.A.to enjoy; to takeB. enjoying; takingC.to enjoy; takingD. enjoying; to take3. ——Where is your father?——He Australia and he Sydney for two weeks.A. has been to; has been inB. has gone to; has been inC. has been in; has been toD. has gone to; has been to4. ——Stephen Hawking died March 14.——What a pity! He is famous a great scientist.A. on; forB. of; forC.in; asD. on; as5. If you go to America, you are sure to visit . It's rather famous in America.A. the Leaning Tower of PisaB. Little MermaidC. the Stature of LibertyD. Mount Fuji6.——Janet, hurry up! The film for ten minutes.——Sorry, I waited for a long time to buy the popcorn.A. has been onB. has startedC. has finishedD. has been over7. ——Alipay has made a great difference to people's life.——. We can go out with a mobile phone.A. CompletelyB. PossiblyC. MaybeD. Exactly8. ——Cindy, you look worried. Do you need a hand?——You are so kind. I want to do it on my ownA. andB. orC. soD. but9. Mr. Chen used books at midnight, but now he is used to to bed early.A. to read; goB. reading; to goC. to read; goingD. read; go10. ——David, do the Olympics take place?——Every four years. The 32nd Olympics will take place in Tokyo.A. how farB. how longC. how oftenD. how much11. I'm sorry I can't get on the bus because I my ticket in the office just now.A. leftB. forgotC. have leftD. have forgotten12. My sister spent a day because her dream came true.A. badB. fantasticC. deliciousD. popular13.——Have you finished your homework ?——Yes, I have done that .A. yet; alreadyB. already; yetC. ever; neverD. still; just14. ——How long have you .——For three years.A. borrowed the bookB. arrived in BeijingC. been interested in scienceD. joined the Party15. Which of the following statements tells the fact not the opinion?A. China is on its way to become the biggest country.B. The Spring Festival was on February 16, 2018.C.TF Boys are as popular as EXO among young people in China.D. Many people prefer to live in Kunming because of its nice weather.二、完形填空（共15小题：每小题1分，满分15分）I have 16 my hometown for a few years. It has changes a lot 17 the years. New roads and beautiful buildings have been 18 . People in my hometown have realized the 19 of protecting the environment. They have done many things 20 planting trees, keeping the roads clean, and not 21 plastic bags. Now the 22 is much better than before, and people's life is 23 than before. The old are doing all kinds of24 such as playing 25 , dancing and playing Taiji in the park. There are 26 places for people to relax such as KTVs and bars in the town. People's life is not 27 anymore. They can relax in many different ways 28 just watching TV at home. There are also some places 29 further leaning, especially for the 30 who want to find good jobs.（）16. A. left B been away C. been away from D. left away （）17. A. among B. over C. between D. after（）18. A. built B. building C. build D. buildings （）19. A. important B. useless C. importance D. use（）20. A. for example B. as C. such as D. that is （）21. A. use B. used C. useful D. using（）22. A. hometown B. environment C. life D. weather （）23. A. bad B. worse C. colorful D. more colorful（）24. A. games B. matches C. work D. activities （）25. A. chess B. the chess C. with chess D. a chess （）26. A. few B. less C. much D. more（）27. A. interesting B. bored C. boring D. happy （）28. A. for example B. instead of C. in fact D. such as （）29. A. for B. at C. with D. to（）30. A. young B children C. old D. baby三、阅读理解（共10小题, 每小题2分，满分20分）A31. The three short passages above are most probably .A. lettersB. postcardsC. invitationsD. advertisements32. Which number would you call if you want to live near the city center?A.5975 8339B.5975 9876C.5922 6600D.5978 763333. Which of the following sentence is not TRUE?A. Sturtin Hostel lies in the downtown.B. Three seasons have high prices and full board.C. First shop offer help to find a suitable person to share a room with.D. All the above.BOn my recent travels in China, I went from the top to the bottom of the country. I was amazed at how different the weather was in different cities. So far I have been freezing cold in Chongli (Hebei province) and Harbin, but much warmer in Shanghai, Guilin, Qingdao and Yangshuo. Each city has a different feel and allows you to experience different things.In Qingdao we ate seafood, drank beer and even swam in the sea. In Harbin we wore our warmest jackets, ate local sausage and saw the amazing ice and snow sculptures (雪雕). In Chongli we learned how to snowboard (滑雪板)! Shanghai reminded (提醒) me of a city in Europe or America. There are lots of Western cafes. Guilin was a good place to be during Spring Festival. Fireworks filled the sky and the streets were busy with excited people. I visited the old buildings and walked around a beautiful lake.But Yangshuo has been my favorite city so far. I could not stop taking photos of the beautiful mountains and the Li River. I rode a bicycle along the Yulong River in the warm sun. I atestrawberries and drank tea from the farms in the mountains.Now l am back in Beijing. I am looking forward to my next trip. I think I will go to another warm place!34. Which city reminded the writer of a city in a western country?A. Beijing.B. Shanghai.C. Guilin.D. Qingdao.35. In Yangshuo, the writer enjoyed the following activities EXCEPT .A. seeing the amazing ice and snow sculpturesB. riding the bike along the riverC. eating strawberries from the farmD. taking photos of the beautiful views36. From the story, we can tell that .A. the writer hasn't been to Hebei so farB. the writer learned how to snowboard in HarbinC. there are many western restaurants in YangshuoD. there are many old buildings in GuilinC"Let's go wrestling, Dad!" 《摔跤吧, 爸爸!》was one of the Top 10 movies in 2017. It tells a true story about an Indian man and his two daughters. His name's Mahayir. In real life, he is called "the father of Indian women wrestling" because thousands of girls across India have been supported to take up wrestling with his efforts.A very famous Indian actor—Aamir Khan (阿米尔汗), played the role of Mahavir in the movie. It was an unusual experience for him. Aamir Khan was very serious about his character and he tried to make this character close to the true story. In order to act well, he needed to put on weight to be very fat and then did sports to be very strong in a short time.Aanir Khan started to eat a lot every day before making the movie. He ate at least 5 meals a day including much junk food. He became too fat to run quickly.It is simple to be fat but difficult to be strong. Aamir Khan invited many coaches to train him to lose weight and it took him a few months to be strong. He must eat less food and drink more water. Strength training is also important. This kind of physical training is very boring. He had to lift different weights and did over and over again. Aamir Khan set a goal to himself day by dayand the minute he made it, he fell down on the ground and could hardly stand up. In the end, he became the exact person the movie needed.The role he played was very moving and he succeeded at last. As he says, the most important thing in life is not whether you can reach your goal but whether you have made the greatest efforts.37. Why is Mahavir called" the father of Indian women wrestling"?A. Because he is a very famous Indian player.B. Because he played a role in the movie "Let's go wrestling, Dad!"C. Because he supported many Indian women to take up wrestling.D. Because he became strong in a short time.38. What does the underlined word "Strength" mean in Chinese?A.力量B.目标C.疲劳D.节食39. What is the correct order of the following things about Aamir Khan?①He changed his eating habits and did sports to become strong.②He was serious about the character and he needed to make great efforts.③To be fat, he ate lots of food.④Finally, he succeeded.A.③②①④B.②③④①C.②①④③D.②③①④40. Which of the following is NOT true about Aamir Khan himself?A. "Let's go wrestling, Dad!" is a true story about Aamir Khan himself.B. He became very fat at first and then lost weight in a very short time.C. In order to act well, he trained so hard.D. He tried to play a perfect role in the movie.五、填空（共15小题, 每小题1分, 满分15分）A）根据括号中所给的汉语写出单词。
南京市八年级下学期数学第二次月考试卷
南京市八年级下学期数学第二次月考试卷姓名:________ 班级:________ 成绩:________一、单选题 (共10题；共23分)1. （2分）下列说法中正确的是（）A . 是二次根式B . ﹣不是二次根式C . 不是二次根式D . 是二次根式2. （5分）下列各组数中，是勾股数的一组为A . 3，4，25B . 6，8，10C . 5，12，17D . 8，7，63. （2分）下列运算正确的是（）。
A .B .C .D .4. （2分）如果＝成立，那么（）A . x≥0B . x≥1C . x﹥0，D . x﹥15. （2分）式子的取值范围是（）A . x≥1且x≠-2B . x>1且x≠-2C . x≠-2D . x≥16. （2分）(2019·亳州模拟) 式子意义时，x的取值范围为（）A . x≥1且x≠0B . x≥1且x≠-1C . x≥1D . x≥1且x≠-1且x≠07. （2分）(2018·兴化模拟) 下列计算错误的是（）A .B .C .D .8. （2分）如果x＜0，那么化简的结果为（）A . 0B . ﹣2xC . 2xD . 19. （2分） (2017八下·桂林期末) 如图，在Rt△ABC中，∠C=90°，如果AB=5，BC=3，那么AC等于（）A .B . 3C . 4D . 510. （2分）如图是我国古代数学家赵爽的《勾股圆方图》，它是由四个全等的直角三角形与中间的小正方形拼成的一个大正方形、如果大正方形的面积13，小正方形的面积是1，直角三角形的短直角边为a，较长的直角边为b，那么（a+b）2的值为（）A . 169B . 25C . 19D . 13二、填空题 (共7题；共7分)11. （1分）计算：＝1 ．12. （1分） (2017八上·郑州期中) 已知，则点A(1，a)关于y轴的对称点为B，则点B的坐标为________.13. （1分）使式子有意义的x的取值范围是________.14. （1分） (2019八上·伊通期末) 如图，在△ABC中，AB＝AC＝4，∠A＝30°，那么S△ABC＝________．15. （1分） (2020八下·武川期中) 化简： ________.16. （1分）(2017·靖远模拟) 一个等腰三角形的两条边长分别是方程x2﹣7x+10=0的两根，则该等腰三角形的周长是________．17. （1分） (2019八下·林西期末) 如图，直线与轴、轴分别交于，两点，是的中点，是上一点，四边形是菱形，则的面积为________.三、解答题 (共8题；共54分)18. （5分）(2019·百色) 计算：19. （10分）计算：（1）（2）20. （5分） (2019八上·玄武期末) 计算：21. （5分） (2018七上·江阴期中) 如果方程－7=－1的解与关于x的方程4x－(3a＋1)=6x＋2a－1的解相同，求代数式a2＋a－1的值．22. （5分） (2019七上·闵行月考) 先化简，再求值：，其中23. （2分）(2018·巴中) 如图，在▱ABCD中，过B点作BM⊥AC于点E，交CD于点M，过D点作DN⊥AC于点F，交AB于点N．（1）求证：四边形BMDN是平行四边形；（2）已知AF=12，EM=5，求AN的长．24. （15分） (2020八下·衢州期中) 有一块长方形木板，木工采用如图所示的方式，在木板上截出两个面积分别为18dm²和32dm²的正方形木板。
2018-2019年江苏省南京市鼓楼区金陵汇文学校八年级下学期期中考试英语试卷(无答案)
2018-2019学年江苏省南京市鼓楼区金陵汇文学校八年级下学期期中考试英语一．听力（略）二、单项选择（共15小，每小1分，满分15分）从A，B，C，D四个选项中，选出可以填入空白处的最选项，并在答题卡上将该项涂黑。
1.—Are you playing online game now? —Yes. is called New Land.A.an; TheB. a; TheC. an; AD. /; The2.Nick is a book lover and he always brings home many books to read the library.A. InB. forC. byD. from3.—Excuse me, sir. You can take photos here. Look at this.—Sorry. I the sign.A. haven't noticedB. don't noticeC. didn’t noticeD. won't notice4. —So kind of you to give me a ride to the station.—.A. It doesn't matterB. Never mindC. With pleasureD. My pleasure5. Hurry up! The class for about five minutes.A. have begunB. has begunC. has been onD. began6. advice you’ve given me! I really appreciate your help.A. How usefulB. What usefulC. What a usefulD. How a useful7. —Where is your father? —He has flown to Shanghai. He has Pudong since last Friday.A. gone toB. been inC. been toD. flown to8. Which book doesn't belong to the four great classical Chinese novels?A. Journey To the WestB. Three KingdomsC. Dream of RedD. Lady White Snake9. I never drive to walk. It’s only walk from home to school.A. 10 minutes’B. 10-minuteC. 10-minutesD. 10-minute's10. Here's the topic. When did your mother your father?A. get marriedB. marryC. marry toD.marry with11. Yesterday I missed the last bus home. , there was a public bike nearby.A. UnluckyB. LuckyC. UnluckilyD. Luckily12. You’ll soon fly back to see your daughter. I think you be very happy now.A. CanB. mustC. have toD. may13. Never refuse a present from the lord if you one. Be grateful.A. MakeB. acceptC. orderD. receive14. All of us can hardly know so much waste waterA. how to do withB. what to do withC. what to deal withD. how dealing with15. —Did you have a good May Day holiday?—The buffet in the hotel was terrible and made me sick.A.I'm afraid not.B. I'm not sureC. Of courseD. I hope so三、完形填空（共10小题，每小题1分，满分10分）阅读下面短文，从短文后所给各题的四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
2021-2022学年江苏省南京市鼓楼区金陵汇文学校八年级(下)月考英语试卷(5月份)(附答案详解)
2021-2022学年江苏省南京市鼓楼区金陵汇文学校八年级（下）月考英语试卷（5月份）1. --David，it is quite careless __________ your father to park his car in front of the gate.-- I'm sorry!It is important __________ him to know where to park his car.（）A. for；forB. for；ofC. of；ofD. of；for2. - Would you please not speak so loudly in _______ public？- Sorry． I will remember to speak in _______ lower voice．（）A. the； aB. /； aC. the； theD. /； /3. —Daisy, go and see what is happening to the windows.—Nothing serious. The heavy rain is beating ________ them.A. againstB. acrossC. throughD. above4. In order to complete the tasks from the school，I _________ to bed _________ midnight.（）A. didn't go；untilB. went；untilC. went；tillD. didn't go；after5. --Tony，where is Timmy？I haven't seen him for days.--Oh，he __________ from Nanjing for a week.（）A. has been leftB. has leftC. has goneD. has been away6. Most parents __________ their children to have a bright future，so they pay a lot for theirchildren's education.（）A. excuseB. expressC. experienceD. expect7. --- Mum， I have got a good job for 8，000 yuan a month.--- Really， that sounds ______ to be true.（）A. too goodB. so goodC. good enoughD. such good8. Although you may meet some difficulties in leaning English，you should never ________.（）A. put upB. get upC. give upD. grow up9. - Do the Winter Olympics have similar events to ________ in the Summer Olympic Games？- No． Winter Olympic Games only include winter sports．（）A. thoseB. thisC. thatD. ones10. Are you free next week，Sandy？I want to visit you __________ next week.（）A. sometimeB. some timeC. sometimesD. some times11. Uncle Wang __________ as a computer engineer for 5 years，and now he is teaching in asecondary school.（）A. workedB. has workedC. worksD. was working12.As you know， we can organize our ideas in different ways according to the type of writing. For ex ample， when we write about an experience or an event， we use ______.（）A. Time orderB. Space orderC. General to specificD. Specific to general13. If you are ________，British people usually say"Excuse me"or are polite to wait till youmove．（）A. on the wayB. by the wayC. in this wayD. in the way14. The purpose of "Walk for Children" is __________ the charity called UNICEF.（）A. to donate money forB. to raise money toC. to raise money forD. donating money for15. —He never tells us he can make model planes.—In fact he can and often wins in the competitions. ______.A. Actions speak louder than wordsB. Many hands make light workC. No pain, no gainD. The early bird catches the wormLast National Day holiday，you might be busy hanging out with your friends.But kids from Nanjing Jinling Middle School were（1）trying to be "pregnant （怀孕的）"。
2018-2019年江苏省南京市鼓楼区金陵汇文中学八年级上学期10月月考英语试卷（含答案和解析）
2018-2019年江苏省南京市鼓楼区金陵汇文中学八年级上学期10月月考英语试卷（含答案和解析）2018-2019学年江苏省南京市鼓楼区金陵汇文中学八年级上学期月考英语试卷一．单项填空（共15小题，每小题1分，满分15分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1. Which word should be put into a different group？A. boredB. angryC. honestD. afraid2. I felt much after I told the problems to my close friendA. goodB. wellC. betterD. best3.- does your new friend ？-She is tall and slim with long hair and bright eyesA. How; lookB. What; lookC. What; look likeD. How; look like4.-Adele Adkins is one of singers in the world.A. famousest B the famousest C. the most famous D. most famous5. He spoke very fast and very people understood what he said.A. littleB. a littleC. fewD. a few6. The jokes often make the children .A. fun: laughB. funny; to laughC. fun: laughD. funny; laugh7. -My mother is hard-working. she does for my family, she feelsA. more, happierB. The much; the happyC. The more; the happierD. The most; the happiest8. -This screen is even , so everyone can see the smallest words .A. clear; clearlyB. clearly; clearC. clearer, clearD. clearer; clearly9. Which word is used by American people?A. storeB. holidayC. gardenD. lorry10. -How many people do we need to finish the work?-Three are enough.A. at leastB. at mostC. otherD. another11. I don' t have enough time to read newspapers. I usually the headings quickly at breakfast.A. look overB. look forC. look afterD. look through12.-what do you think of Henry?-She breaks her promise（诺言）. She is true to her word.A. alwaysB. oftenC. usuallyD. hardly13. -When someone smiles to you, you should smile back .A. politeB. lovelyC. friendlyD. easily14. -How do you like the dishes, Eric?-Nothing tastes .A. niceB. betterC. terribleD. worse15. -I missed the beginning of the football match yesterday evening.- ! But you can watch the re-play tonight.A. Hurry upB. What a pityC. Try your bestD. I don't think so二．完形填空（共10小题，每小题1分，满分10分）阅读下面短文，从短文后所给各题的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂。
南京市金陵汇文学校初中部2018-2019学年第一学期10月月考 初二年级 语文 试卷及参考答案
7. 文道中学开展 致敬英雄 主题活动。
（ 1 ）活动一：读英雄
英雄就是为了实现美好理想，艰苦奋斗，⻓期坚持，战胜一切困难的人。
请结合《红星照耀中国》的具体内容，谈谈书中你心目中的一个英雄人物，并说明理由。
（ 2 ）活动二：访英雄
根据下面材料，以小记者的身份，向英雄机⻓刘传健提两个问题。
川航3U8633航班⻜行途中，⻛挡玻璃突然爆裂。机⻓刘传健回忆当时的情景说： 其实那
/
虽兹山之胜，栖贤盖以一二数矣。 （ 5 ）同贬谪，苏轼在承天寺寻张怀⺠一起赏月，苏辙则依水循山独赏栖贤之盛，两人的情感有
何不同？
10. 阅读下面的文章，完成下列各题。 父亲的轮廓
父亲一直是我最好的朋友。 每当⺟亲用一些类似 牙膏没有从最尾端挤出 冰箱⻔没关紧 看电视超过半个小时 等等小 事向我兴师问罪，并且总是将矛头转向我的成绩上面去时，我便知道，夜里，父亲又会来到我的 房间。 父亲个性之中有一种非常腼腆的特质，他总是等我和⺟亲都睡着以后，才蹑手蹑脚地轻轻扭 开⻔把，走进我的房间，在小书桌的台灯底下压一张纸条。有时，纸条里面还会包着一张五十块 钱的钞票。偶尔，在情况较糟的时候，父亲会在纸条上用歪斜支离的字迹写下 忍一时，⻛平浪 静 与我共勉；这句话成了我们彼此之间的默契，那表示父亲知道在我和他一样敏感而容易受伤 的心灵中，又遭受了一次无情的考验。 曾经有过几回，父亲来的时候我并未睡着，我听到父亲用力握住⻔把，再缓缓转开的声音， 便立刻翻过身去面向墙壁眯着眼睛。尽管父亲极力不愿发出声响，我还是听到一双塑胶拖鞋在黑 暗中静静地走向书桌，然后是纸张摩擦桌面的窸窣声，和父亲迟重的呼吸声……有时，父亲会拉 开椅子，把台灯扭开一点点亮，然后坐在我的书桌前沉默不动，过了好一会儿，才靠上椅子。离 去前，父亲会替我把桌上的书本和作业簿摆放整⻬，然后才扭熄台灯；在那一刻，我的眼前又恢 复成一片黑暗。 我从不知道父亲坐在我的椅子上时，心里在想些什么。我也从来不敢抬起头来，用一声叫 唤，或者一双清醒的目光来打破沉默。也许我没有勇气，怕自己会在父亲面前哭了起来；更让我 恐惧的是，若是走下床来，不幸看⻅父亲的眼⻆也含着泪光，默默地坐在我的书桌前，我该如何 面对那种时刻？ 高三那年，是我生命中的第一个难关；当时，在我不觉生命有何可喜的脑筋里，的确曾经生 起过自杀的念头。我不知道父亲是否经历过联考的压力，不过，在那没完没了的一年里，的确只 有父亲曾经察觉到我想死的念头。 接近联考的某个夜晚，我正在学校提供的晚自习教室里作考前冲刺，日光灯管把教室照得明 亮而冷清，同学们都埋首书桌、互不交谈。我选了一个邻接走廊靠窗的座位，设法让自己专心在 书本上；突然，我听到一阵用手指关节轻轻敲打玻璃的声音，抬起头来，父亲的脸出现在窗格里 面。
2020-2021学年江苏省南京市金陵汇文中学八年级下学期第二次月考英语试卷含答案
金陵汇文8B 第二次月考一、单项填空（共15小题；每小题1分，满分15分）从A, B, C和D四个选项中，选出可以填入空白处的最佳选项。
1.______ ORBIS doctor who got here yesterday needed ______ X-ray machine to examine his patients.A. The; aB. The; anC. An; aD. An; an2. She was very ______ us for informing her of her son’s safe return.A. grateful toB. grateful forC. gratefulD. grateful with3. --- Your watch looks new. How long have you ______ it?--- For about one year.A. borrowedB. boughtC. gotD. had4. Everyone except Tom and Mike ______ Kunming before.A. has gone toB. have gone toC. has been toD. have been to5. We students can ______ food and old clothes to the homeless people, and the teachers can ______ learning skills for the poor children.A. provide; giveB. provide; offerC. offer; giveD. give; provide6. This opener ______ open wine bottles, but I seldom use it because I ______ wine.A. used to; am not used to drinkingB. is used to; am not used to drinkC. us used to; am not used to drinkingD. used to; am not used to drink7. This type of mobile phone is ______ for me to ______.A. enough expensive; affordB. too expensive; affordC. too expensive; afford itD. cheap enough; afford it8. --- The teacher asks us to read the article aloud in the morning.--- Yes. ______, we can remember the new words better.A. By the wayB. In some wayC. In this wayD. By this way9. --- The volunteers really provided the athletes with support.--- Exactly. ______ they helped make the event!A. What a great successB. What great successC. How a great successD. How great success10. --- Please speak louder. My grandfather is a little ______.--- Sorry, I ______A. blind; doB. disabled; won’tC. deaf; willD. worried; don’t11. --- ______ did you leave the classroom?--- ______ I saw my daughter sit down and read her book.A. How long; AfterB. When; UntilC. How long; UntilD. When; After12. --- You never stay up till midnight, do you?--- ______. But I think it’s bad for our health.A. No, neverB. No, sometimesC. Yes, neverD. Yes, sometimes13. --- It’s ______ of you to bring me some fruit.--- My pleasure. Please make yourself at home, sir.A. generousB. cleverC. thoughtfulD. polite14. Earth Day ______ in 1970 to tell us to protect our planet.A. sets upB. set upC. is set upD. was set up15. --- Linda, together with her parents, ______ us the mess in the park at the moment.--- It’s meaningful to be a volunteer. Let’s join them.A. is cleaningB. are cleaningC. has cleanedD. have cleaned二、完形填空（共10小题；每小题1分，满分10分）Fire! Fire!The moon was behind a cloud and there weren’t many stars in the sky. It was a dark night. I saw a glow (火光) in my neighbor’s kitchen. I thought he was having a midnight snack, so I went back to my bed.Soon, there was a ___16___ smell in the air. At once, I jumped out of the bed and went downstairs to see what happened. I saw fire coming out of my neighbor’s ___17___. I shouted “Fire! Fire!” But there was no one nearby.I rushed into my house, ___18___ the police and went back to my neighbor’s house. I rang the doorbell, knocked at the door and called out my neighbor’s name ___19___ there was no answer. I tried to break ___20___ the house and saved a cat and a rabbit.I tried to pour water through the kitchen window, but it was ___21___. The fire was too strong. Soon a fire engine (消防车) arrived and the ___22___ put out the fire. ___23___, they arrived just before the fire was going to spread (蔓延) to the other rooms in the house.When my neighbor came back, he was sad because of the accident, but he was ___24___ to me for calling the police and for saving his ___25___. He wanted to give me some money but I did not accept.16. A. sweet B. delicious C. burning D. from17. A. yard B. bedroom C. kitchen D. car18. A. saw B. found C. met D. called19. A. if B. but C. so D. or20. A. into B. out C. up D. down21. A. useful B. useless C. hopeful D. hopeless22. A. police B. firemen C. neighbors D. family23. A. Sadly B. Suddenly C. Luckily D. Slowly24. A. thankful B. Happy C. angry D. bored25. A. money B. friends C. pets D. house三、阅读理解（共15小题；每小题1分，满分15分）AAlice in Wonderland is a 3D film. It is an updated version (现代更新版) of the old British children’s novel Alice in Wonderland. The film is the work of a Hollywood director Tim Burton who likes re-imagining old films and stories in his Gothic (哥特式的) style.Johny Depp, a famous Hollywood film star, is the main character of this film as the Nad Hatter. There are also many other celebrities in this film, including Burton’s wife and Anne Hathaway. Some British actors supply (提供) the voices for the film’s CGI characters (特效角色)。
2018-2019年江苏省南京市鼓楼区金陵汇文中学八年级下学期第二次月考试卷(解析版)
2018-2019学年江苏省南京市鼓楼区金陵汇文中学八年级下学期第二次月考试卷总分:100 分时间:60 分钟一．单项选择（共15题，每小题 1 分，计15 分）1. UINICEF wants to make world better place for children.A. a: theB. the; aC. the; theD. /; a【答案】B【解析】考察冠词。
让这世界成为一个更好的地方。
特指世界用the，一个地方用a。
选 B 。
2. It's kind them to give food and clothes to homeless people.They think it's important them to do so.A. of; forB. for; ofC. of; toD. to; for【答案】A【解析】考察It is 句型。
形容人的品质用of，形容事物的客观因素用for。
选A。
3. He has all his pocket money the local charity to help people in need.A. given; forB. raised; toC. provided; withD. donated: to【答案】D【解析】考察动词搭配。
句意：他把他的钱全捐给当地慈善机构了。
Donate money to ⋯，选D。
4. Some of the problems of living in the sea are similar of living in outer space.A. with; thatB. to; oneC. to; thoseD. with; that【答案】C【解析】考察介词搭配。
第一个空be similar to 固定搭配。
第二个空those 代指生存空间，选 C 。
5. There is a big stone my way my way home yesterday.A. in; on;B. in; by;C. On; in;D. In; in;【答案】A【解析】考察介词搭配。
江苏省南京市鼓楼区金陵汇文学校八年级(下)期末物理试卷
第6页（共8页）
27．（8 分）阅读短文，回答问题。 在我国随着人民生活水平的提高，汽车开始进入普通百姓家庭。小明同学家买了一辆崭新的
汽车，部分相关参数配置如下表所示：
参数
全身质量
1200kg 油 50mL 理 6L/10km
箱
论
容
油
积
耗
全身长度
4269mmm 车 1686mm 车 1492mm
身
变；不变；变大； 16．称量物体质量时，调节平衡螺母； 17．负；负； 18．温度；间 隙；斥力；同种；摩擦起电； 19．硬度；导电性；密度；保温； 20．＝；＜； 21．2； 不能； 22．水；酒精； 23．右；32.2；偏大； 三、解答题（24-25 题每空 1 分，26-27 每空 2 分，28 题 7 分，29 题 6 分，共 44 分） 24．ρ＝ ；水平桌面；平衡螺母；39.2；18；2.18×103；偏小； 25．右；37；17.4；20；
A．变大
B．变小
C．不变
D．无法确定
10．（2 分）三个体积和质量都相等的空心铜球、铁球、铝球（ρ 铜＞ρ 铁＞ρ 铝），将它们空心 部分注满水后（ ）
A．铝球最重
B．铜球最重
C．铁球最重
D．三球一样重
11．（2 分）在使用天平测量物体质量的过程中，下列操作不规范的是（ ）
A．用镊子夹取砝码，以免生锈
较差的
特点，夏季使用塑料泡沫箱装运海鲜，可达到减小载质量和保鲜的目的。这分别利用了
塑料泡沫
较小和
效果较好的特性。
20．（2 分）如图，在一架放在水平面上、已经调节平衡的托盘天平的两个天平盘里，分别
放入 A，B 两个实心正方体（边长 rA＞rB），天平仍然保持平衡，则可知 mA
江苏省南京市金陵汇文中学八年级(下)质检物理试卷(二)
江苏省南京市金陵汇文中学八年级（下）质检物理试卷（二）一、选择题（每小题3分，共45分）1．（3分）下列说法中正确的是（）A．空气中细小的灰尘就是分子B．大雾中，我们看到空气中许多极小的水珠就是一个个小分子C．把一块铜块锉成极细的铜屑就是铜分子D．由于分子非常小，人们无法直接用肉眼进行观察2．（3分）关于微观粒子，下列说法中正确的是（）A．分子间存在着相互作用的引力和斥力B．0℃所有物质的分子都是静止不动的C．组成固体的分子是静止不动的D．组成固体和液体的分子间是没有空隙的3．（3分）关于原子和原子核，下列说法正确的是（）A．原子由原子核和核外电子组成B．原子由中子和质子组成C．原子核由中子和电子组成D．原子核不能再分4．（3分）最早建立了类似行星绕日的原子核式结构模型的物理学家是（）A．卢瑟福B．汤姆生C．伽利略D．托里拆利5．（3分）在物理学中，原子、原子核及其更深层次的客体统称为微观粒子，以下微观粒子按空间尺度由小到大排序正确的是（）A．原子原子核质子夸克B．夸克质子原子核原子C．夸克原子核质子原子D．原子核质子夸克原子6．（3分）下列现象中，能说明分子不停地做无规则运动的是（）A．桂花飘香B．细雨濛濛C．雪花飞舞D．树叶飘落7．（3分）对下列现象的解释，正确的是（）A．封闭在容器内的液体很难被压缩，说明分子间有引力B．打开香水瓶盖后，能闻到香味，说明分子在永不停息的运动C．用手捏海绵，海绵的体积变小了，说明分子间有间隙D．铅笔笔芯用了一段时间后会变短，说明分子间有斥力8．（3分）人类对原子结构的探究最早是从静电现象开始的。
关于静电现象，下列说法不正确的是（）A．摩擦起电并没有创造电荷，而是电荷的转移B．与丝绸摩擦过的玻璃棒带正电荷，丝绸带负电荷C．小通草球与毛皮摩擦过的橡胶棒吸引，则该小通草球一定带正电D．自然界只存在正、负两种电荷9．（3分）小芳用丝绸摩擦过的玻璃棒靠近一轻小物体，发现轻小物体被吸引，则该轻小物体（）A．一定带正电B．可能带正电，也可能不带电C．一定带负电D．可能带负电，也可能不带电10．（3分）有甲、乙两个用绝缘丝线悬挂的轻质小球，如图所示。
江苏省南京市鼓楼区2018-2019学年度第二学期期末考试八年级语文试卷
南京市鼓楼区2018-2019学年度第二学期期末考试八年级语文试卷2019.06注意事项：1.1.本试卷共本试卷共6页，共100分；考试时间120分钟。
2.2.答案一律用黑色墨水签字笔写在答题卡的指定位置，答在本试卷上无效。
答案一律用黑色墨水签字笔写在答题卡的指定位置，答在本试卷上无效。
一（25分）1.1.仿照示例，任选其中一种字体临写下面的句子。
仿照示例，任选其中一种字体临写下面的句子。
（3分）示例①：君子和而不同示例②：君子和而不同▲▲▲▲▲▲2.2.下列词语加点字注音完全正确的一项是（下列词语加点字注音完全正确的一项是（▲）（2分） A. A.绚丽绚丽绚丽(xu (xu (xuààn) n) 羁羁．绊(j (jīī) ) 挑拨离间挑拨离间．(ji (jiāān) B.B.缄缄．默(ji (jiāān) n) 棱棱．角(l (lííng) ng) 接踵接踵．而至而至(zh (zh (zhǒǒn ɡ) C.C.蛮横蛮横．(h (hèèng) ng) 寒噤寒噤．(j (jììn) n) 戛然而止（戛然而止（戛然而止（g g á）D.D.狩狩．猎(sh (shòòu) u) 龟龟．裂(j (jūūn) n) 怒不可遏怒不可遏．( ( èè ) 3.3.下列词语书写完全正确的一项是（下列词语书写完全正确的一项是（▲）（2分）A.A.缭绕缭绕震撼纷至踏来B.B.告诫告诫赋予轻歌曼舞C.C.喧哗喧哗狡辨漫不经心D.D.瞭望瞭望抉择穿流不息4.4.下列句子中加点词语使用错误的下列句子中加点词语使用错误的．．．一项是（▲）（2分）A.A.中国企业若想卓越发展，就要像华为集团那样勇于创新，出类拔萃中国企业若想卓越发展，就要像华为集团那样勇于创新，出类拔萃．．．．，在技术上领先别人。
2018-2019学年江苏省南京市鼓楼区金陵汇文学校八年级(下)期初数学试卷
2021-2021学年江苏省南京市鼓楼区金陵汇文学校八年级〔下〕期初数学试卷、选择题〔每题 3分,合计15分〕〔3分〕以下各数中,是无理数的是〔 B. 1.01001000A.三条角平分线的交点B,三条中线的交点C.三条高的交点D.三条边的垂直平分线的交点分,那么这个等腰三角形的底边长为〔(2 分)如图,/ C=90° , / 1 = / 2,假设 BC=10, BD = 6,那么 D 到 AB 的距离为〔2分〕假设直角三角形的两直角边长分别为 5和12,那么斜边上的中线长为10. 〔2分〕写出一个一次函数,使它的图象经过第一、三、四象限:D -f2.〔3分〕假设方程〔x- 4〕 2= 19的两根为 a 和b,且a>b,那么以下结论中正确的选项是 3. A . a 是19的算术平方根C. a- 4是19的算术平方根〔3分〕到三角形的三个顶点距离相等的点是〔B. b 是19的平方根 D. b+4是19的平方根4. 〔3分〕在等腰△ ABC 中,AB = AC,中线BD 将这个三角形的周长分为 15和 12两个部C. 7 或 11D. 7或 10 5. 〔3分〕以下函数中,y 随x 的增大而减小的有〔① y = - 2x+1;② y=6-x;③丫=一1+* ;④ y= (1 -) 3x. C, 3个D, 4个二、填空题〔每空 2分,合计26分〕 6. 〔4分〕4的算术平方根是 ;64的立方根是 7. 〔2分〕小明的体重为 48.86kg , 48.86~.〔精确到0.1〕8. 9.11. 〔2分〕将函数y=3x+1的图象平移,使它经过点〔1,1〕,那么平移后的函数表达式是12. 〔4分〕矩形的性质：矩形具有平行四边形的所有性质,①矩形的每个角都是②矩形的对角线13. 〔2分〕如图,长方形网格中每个小正方形的边长是〔1〕C^R + 〔衣〕2(2) |L 3|+ (加)2+ (阴-1) 0(1) (2x+1) 2=64;19.〔8分〕：如图,在^ ABC 中,AP 平分/ BAC.18. (2) 8x 3+27 = 0.如图,在^ ABC 中,AB=6, AC = 8, BC=10, BC 的垂直平分线分别交AC 、(7分) 还具有自己的性质: 1, △ ABC 是格点三角形〔顶点都14. 〔2分〕菱形的定义:15. 〔4分〕菱形的性质：菱形具有平行四边形的一切性质, 还具有自己的性质:①菱形的四条边都②菱形的对角线三、简答超〔合计 48分〕16. 〔6分〕计算:17. 〔6分〕解方程到AB 的距离为〔2〕求证：点 F 在/ DBC 的平分线上.20. 〔8分〕求证：一组对边平行且相等的四边形是平行四边形.知、求证和证实过程〕 21. 〔8分〕如图,在等腰△ ABC 中,AB=AC, BC=5.点D 为AC 上一点,且 BD = 4, CD22. 〔8分〕：如图,在平行四边形 ABCD 中,点E 、F 在AC 上,且 AE= CF .23. 〔8分〕甲骑电动车、乙骑摩托车都从 M 地出发,沿一条笔直的公路匀速前往 N 地,甲 先出发一段时间后乙再出发, 甲、乙两人到达N 地后均停止骑行.M 、N 两地相距 理■ 3 km,设甲行驶的时间为 x 〔h 〕,甲、乙两人之间的距离为y 〔km 〕,表示y 与x 函数关系 的局部图象如下图.请你解决以下问题:〔1〕求线段BC 所在直线的函数表达式;〔2〕求点A 的坐标,并说明点 A 的实际意义;〔3〕根据题目信息补全函数图象. 〔须标明相关数据〕 〔要求：画出图形,写出已(1)求证：BDXAC;求证：四边形 BEDF 是平行四边形.2021-2021学年江苏省南京市鼓楼区金陵汇文学校八年级〔下〕期初数学试卷参考答案与试题解析一、选择题〔每题3分,合计15分〕1. 〔3分〕以下各数中,是无理数的是〔〕- 22A. 0 B . 1.01001000 C.兀—2 D. —7【分析】无理数就是无限不循环小数.理解无理数的概念,一定要同时理解有理数的概念,有理数是整数与分数的统称.即有限小数和无限循环小数是有理数,而无限不循环小数是无理数.由此即可判定选择项.【解答】解：A. 0是整数,属于有理数；B. 1.01001000是有限小数,属于有理数；C .兀-2是无理数；D.爷是分数,属于有理数；应选：C.【点评】此题主要考查了无理数的定义,其中初中范围内学习的无理数有：兀,2兀等；开方开不尽的数；以及像0.1010010001 • ,等有这样规律的数.2. 〔3分〕假设方程〔x- 4〕2=19的两根为a和b,且a>b,那么以下结论中正确的选项是〔〕A . a是19的算术平方根 B. b是19的平方根C. a- 4是19的算术平方根D. b+4是19的平方根【分析】首先根据方程判断出a和b的大小,进而得出 a - 4 = ^19, b - 4= - 9.根据此即可选出C项正确.【解答】解：.「〔x- 4〕2=19,x - 4= ±V19,X1 = 4 +^-19, X2 = 4 —V19,,「a、b是方程〔x- 4〕 2=19的两根为a和,且a>b,a = 4+V19, b= 4 - ,•,.a>0, b<0,a - 4=V19,b - 4= - V19 -A. a是19的算术平方根,应改为a-4是19的算术平方根,所以错误;B. b是19的平方根,应改为b- 4是19的平方根,所以错误；C. a-4是19的算术平方根,正确；D. b+4是19的平方根,应改为b - 4是19的平方根,所以错误.应选：C.【点评】此题考查了平方根与算术平方根的定义,正确理解平方根与算术平方根是解题的关键.3. 〔3分〕到三角形的三个顶点距离相等的点是〔〕A.三条角平分线的交点B,三条中线的交点C.三条高的交点D.三条边的垂直平分线的交点【分析】根据垂直平分线的性质,可得到三角形的三个顶点距离相等的点是三条边的垂直平分线的交点.【解答】解：三角形的三个顶点距离相等的点是三条边的垂直平分线的交点.应选：D.【点评】此题主要考查了垂直平分线的性质和应用,要熟练掌握,解答此题的关键是要明确：垂直平分线上任意一点,到线段两端点的距离相等.4. 〔3分〕在等腰△ ABC中,AB = AC,中线BD将这个三角形的周长分为15和12两个部分,那么这个等腰三角形的底边长为〔〕A. 7B. 11C. 7 或11D. 7 或10【分析】题中给出了周长关系,要求底边长,首先应先想到等腰三角形的两腰相等,寻找问题中的等量关系,列方程求解,然后结合三角形三边关系验证答案.【解答】解：设等腰三角形的底边长为x,腰长为v,那么根据题意,r fx+^-15 x-H^-12得①,或②,y+y=12解方程组①得：〔K"n,根据三角形三边关系定理,此时能组成三角形；〃、"/ " x=7 ,皿…解方程组②得：4 ,根据三角形三边关系定理此时能组成三角形,-10即等腰三角形的底边长是11或7;应选：C.【点评】此题考查等腰三角形的性质及相关计算.学生在解决此题时,有的同学会审题错误,以为15, 12中包含着中线BD的长,从而无法解决问题,有的同学会忽略掉等腰三角形的分情况讨论而漏掉其中一种情况；注意：求出的结果要看看是否符合三角形的三边关系定理.故解决此题最好先画出图形再作答.5. 〔3分〕以下函数中,y随x的增大而减小的有〔〕① y = - 2x+1;② y=6-x;③丫=;④ y= 〔1 〕x.3A. 1个B. 2个C. 3个D. 4个【分析】分别确定四个函数的k值,然后根据一次函数y=kx+b〔kw0〕的性质判断即可.1 Xv 1【解答】解：① y= — 2x+1 , k= - 2 V 0;② y=6 — x, k= - 1v0; d〕 y= ------------------- , k=——3 3<0;④ y= 〔 1 -V_2〕x, k= 〔1 - ^2〕<0.所以四函数都是y随x的增大而减小.应选：D.【点评】此题考查了一次函数y= kx+b 〔kw0〕的性质：当k>0, y随x的增大而增大；当kv 0, y随x的增大而减小.二、填空题〔每空2分,合计26分〕6. 〔4分〕4的算术平方根是 2 : 64的立方根是4 .【分析】根据求算术平方根和立方根的方法可以解答此题.【解答】解：= 2,幻64 = 4,,4的算术平方根是2, 64的立方根是4,故答案为：2, 4.【点评】此题考查立方根、算术平方根,解答此题的关键是明确它们各自的求法.7. 〔2分〕小明的体重为48.86kg , 48.86弋48.9〔精确到0.1〕【解答】解：48.86=48.9.〔精确到0.1〕.故答案为48.9.【点评】此题考查了近似数和有效数字：“精确到第几位〞和“有几个有效数字〞是精确度的两种常用的表示形式,它们实际意义是不一样的,前者可以表达出误差值绝对数的大小,而后者往往可以比拟几个近似数中哪个相对更精确一些.8. 〔2分〕如图,/ 0=90° , / 1 = / 2,假设BC=10, BD = 6,那么D 到AB 的距离为4【分析】由条件首先求出线段0D的大小,接着利用角平分线的性质得点D至IJ边AB 的距离等于0D的大小,问题可解.【解答】解：= BC=10, BD=6,• .CD = 4,•・ / 0=90° , / 1 = / 2,•••点D到边AB的距离等于CD=4, 故答案为：4.【点评】此题考查角平分线的性质：角平分线上的任意一点到角的两边距离相等；题目较为简单,属于根底题.9. 〔2分〕假设直角三角形的两直角边长分别为5和12,那么斜边上的中线长为 6.5【分析】根据勾股定理可求得直角三角形斜边的长,再根据直角三角形斜边上的中线等于斜边的一半即可求解.【解答】解：,「直角三角形两直角边长为5和12,,斜边= 45.［2 2 =13,.♦・此直角三角形斜边上的中线的长=—=6.5. 2故答案为：6.5.【点评】此题主要考查勾股定理及直角三角形斜边上的中线的性质；熟练掌握勾股定理, 熟记直角三角形斜边上的中线的性质是解决问题的关键.10. 〔2分〕写出一个一次函数,使它的图象经过第一、三、四象限：y=x- 1【分析】根据一次函数的性质解答即可.第8页〔共17页〕【解答】解：•一次函数的图象经过第一、三、四象限,, k>0, b<0,,写出的解析式只要符合上述条件即可,例如y=x- 1.故答案为y=x- 1.【点评】此题考查一次函数问题,属开放型题目,答案不唯一,只要写出的解析式符合条件即可.11. 〔2分〕将函数y=3x+1的图象平移,使它经过点〔1, 1〕,那么平移后的函数表达式是y=3x - 2 .【分析】根据函数图象平移的性质得出k的值,设出相应的函数解析式,再把经过的点代入即可得出答案.【解答】解：新直线是由一次函数y=3x+1的图象平移得到的,••・新直线的k= 3,可设新直线的解析式为：y=3x+b.••・经过点〔1, 1〕,贝U 1 X3+b= 1,解得b= - 2,••・平移后图象函数的解析式为y=3x-2；故答案为：y= 3x - 2.【点评】此题考查了一次函数图形与几何变换, 求直线平移后的解析式时要注意平移时k 和b的值的变化.12. 〔4分〕矩形的性质：矩形具有平行四边形的所有性质,还具有自己的性质：①矩形的每个角都是直角 .:②矩形的对角线相等 .【分析】根据矩形的性质解答即可.【解答】解：矩形的性质：矩形具有平行四边形的所有性质,还具有自己的性质：①矩形的每个角都是直角；②矩形的对角线相等；故答案为：直角；相等.【点评】此题考查了矩形的性质；熟练掌握矩形的性质是解决问题的关键.13. 〔2分〕如图,长方形网格中每个小正方形的边长是1, △ ABC是格点三角形〔顶点都在格点上〕,那么点C到AB的距离为 1.2 .【分析】设点C到AB的距离为h,根据勾股定理得到AB=^32+42=5,根据三角形的面积公式即可得到结论.【解答】解：设点C到AB的距离为h,AB=V?T?=5,•••S AABC=—X 2X 3=-l-X 5X h,2 2h= 1.2,故答案为：1.2.【点评】此题考查了勾股定理,三角形的面积公式,熟练掌握勾股定理是解题的关键.14. 〔2分〕菱形的定义：有一组邻边相等的平行四边形叫菱形.【分析】根据菱形的定义得出即可.【解答】解：菱形的定义是：有一组邻边相等的平行四边形叫菱形,故答案为：有一组邻边相等的平行四边形叫菱形.【点评】此题考查了菱形的定义,能熟记菱形的定义的内容是解此题的关键.15. 〔4分〕菱形的性质：菱形具有平行四边形的一切性质,还具有自己的性质：①菱形的四条边都相等：②菱形的对角线互相垂直,且每一条对角线平分一组对角.【分析】根据菱形的性质得出即可.【解答】解：菱形的性质：菱形具有平行四边形的一切性质,还具有自己的性质：①菱形的四条边都相等,②菱形的对角线互相垂直,且每一条对角线平分一组对角,故答案为：相等,互相垂直,且每一条对角线平分一组对角.【点评】此题考查了菱形的性质,能熟记菱形的性质的内容是解此题的关键.三、简答超〔合计48分〕16. 〔6分〕计算:（2）| 兀—3|+ 〔加〕2+ 〔布-1〕0【分析】〔1〕先计算算术平方根和立方根,再计算加减可得;〔2〕先计算绝对值、乘方和零指数备,再计算加减可得.【解答】解：〔1〕原式=3+2 ；2 2〔2〕原式=兀-3+2+1【点评】此题主要考查实数的运算,解题的关键是掌握二次根式的性质、熟记特殊锐角的三角函数值与零指数哥、负整数指数哥的规定.17. 〔6分〕解方程（1）〔2x+1〕2=64;（2）8x3+27 = 0.【分析】〔1〕根据直接开平方法可以解答此方程;〔2〕先移项,然后根据开立方法可以解答此方程.【解答】解：〔1〕.「〔2x+1〕2=64,.•-2x+1 = ± 8,解得,X1 = 3.5 , X2= -4.5;（3）8x3+27 = 0,一 3 一• .8x3= - 27,【点评】此题考查解方程,解答此题的关键是明确解方程的方法.18. 〔7分〕如图,在^ ABC中,AB=6, AC = 8, BC=10, BC的垂直平分线分别交AC、BC于点D、E,求CD的长.【分析】连接DB,根据勾股定理的逆定理得到/ A=90°,根据线段垂直平分线的想知道的DC=DB,设DC = DB=x,那么AD = 8 — x.根据勾股定理即可得至U结论.【解答】解：连接DB,在△ ACB中,-AB2+AC2= 62+82 =100,又「BC2 = 102 = 100, ••AB2+AC2=BC2.・•.△ACB是直角三角形,/ A=90° ,.「DE垂直平分BC,DC = DB ,设DC = DB=x,贝U AD = 8-x.在Rt^ABD 中,/A=90° , AB2+AD2=BD2,即62+ (8 - x) 2 =解得x =—,4即CD=—.【点评】此题考查了勾股定理的逆定理,线段的垂直平分线的性质,正确的作出辅助线是解题的关键.19. (8分)：如图,在^ ABC中,AP平分/ BAC.(1)用直尺和圆规作/ BCE的平分线,交AP于点F.(2)求证：点F在/ DBC的平分线上.【分析】〔1〕直接利用角平分线的作法进而分析得出答案;〔2〕直接利用角平分线的性质分析得出答案.【解答】解：〔1〕如下图：FC即为所求；〔2〕证实：二•点F在/BAC平分线上,・••点F至ij AD、AE的距离相等,・・・点F在/ BCE平分线上,・••点F至ij BC、CE的距离相等,・••点F至ij AD、CE的距离相等,【点评】此题主要考查了根本作图,正确掌握角平分线的性质是解题关键.20. 〔8分〕求证：一组对边平行且相等的四边形是平行四边形. 〔要求：画出图形,写出已知、求证和证实过程〕【分析】写出、求证.连接AC,由平行线的性质得出内错角相等/ 1 = /2,由SAS 证实△ ABC^A CDA,得出/ 3=/ 4,证出AD// BC,由平行四边形的定义即可证出结论.【解答】：如图,在四边形ABCD中,AB//CD, AB=CD.求证：四边形ABCD是平行四边形.证实：连接AC,如下图:••• AB// CD,.•.Z 1 = Z 2,在△ ABC和^ CDA中,'AB=CD,Z1=Z2,।AC=CAABC^A CDA (SAS),Z 3= / 4,AD // BC,••・四边形ABCD是平行四边形(两组对边分别平行的四边形是平行四边形)A f /A B【点评】此题考查了平行四边形的判定、三角形全等的判定与性质；熟练掌握平行线的性质和平行四边形的判定,并能进行推理论证是解决问题的关键.21. 〔8分〕如图,在等腰△ ABC中,AB=AC, BC=5.点D为AC上一点,且BD = 4, CD =3.〔1〕求证：BDXAC;【分析】〔1〕利用勾股定理的逆定理即可直接证实^ BCD是直角三角形；〔2〕设AD=x,那么AC=x+3,在直角△ ABD中,利用勾股定理即可列出方程,解方程, 即可求解.【解答】〔1〕证实：= CD = 3, BC=5, BD = 4,•■-CD2+BD2=9+16 =25= BC2,・•.△ BCD是直角三角形,B& AC;(2)解：设AD=x,那么AC = x+3.AB= AC,AB=x+3.・. / BDC= 90° ,・./ ADB = 90° ,・•. AB2=AD2+BD2,即〔x+3〕 = x +4 ,解得：x=JL, 6AB=—+3 = —.6 6【点评】此题考查勾股定理的逆定理的应用.判断三角形是否为直角三角形,三角形三边的长,只要利用勾股定理的逆定理加以判断即可.同时考查了勾股定理,等腰三角形的性质.22. 〔8分〕：如图,在平行四边形ABCD中,点E、F在AC上,且AE= CF .求证：四边形BEDF是平行四边形.【分析】根据平行四边形的性质,可得对角线互相平分,根据对角线互相平分的四边形式平行四边形,可得证实结论.【解答】证实：如图,连接BD设对角线交于点O.••・四边形ABCD是平行四边形,• .OA=OC, OB=OD.••• AE=CF, OA-AE=OC-CF,.•.OE= OF.••・四边形BEDF是平行四边形.【点评】此题考查了平行四边形的判定与性质,利用了平行四边形的对角线互相平分,对角线互相平分的四边形是平行四边形.23. (8分)甲骑电动车、乙骑摩托车都从M地出发,沿一条笔直的公路匀速前往N地,甲先出发一段时间后乙再出发, 甲、乙两人到达N地后均停止骑行.M、N两地相距工地3 km,设甲行驶的时间为x (h),甲、乙两人之间的距离为y (km),表示y与x函数关系的局部图象如下图.请你解决以下问题：(1)求线段BC所在直线的函数表达式；(2)求点A的坐标,并说明点A的实际意义；(3)根据题目信息补全函数图象. (须标明相关数据)【分析】(1)根据函数图象中的数据可以求得线段BC所在直线的函数表达式；(2)根据题意和函数图象中的数据可以求得甲和乙的速度, 从而可以求得点A的坐标并写出点A表示的实际意义；(3)根据(2)中甲乙的速度可以分别求得甲乙从M地到N地用的时间,从而可以将函数图象补充完整.【解答】解：(1)设线段BC所在直线的函数表达式为••• B (5, 0), C (―, —)在直线BC 上, 6 2 356 一3 如‘仔'|2k+b=T即线段BC所在直线的函数表达式为y=20x-%y= kx+b (kw 0),k=20L 50 , b= .y (kmj3〔2〕设甲的速度为m km/h,乙的速度为n km/h,,点A的纵坐标是：30X_L=10,3即点A的坐标为〔,1, 10〕,3点A的实际意义是当甲骑电动车行驶工时,距离M地为10km；3〔3〕由〔2〕可知,甲的速度为30km/h,乙的速度为50千米/小时,175那么乙从M地到达N地用的时间为：-------- 1小时,50 -6工二,6 3 2,乙在图象中的3时,停止运动,2175甲到达N地用的时间为：3二35小时30 ~18补全的函数图象如右图所示.【点评】此题考查一次函数的应用,解答此题的关键是明确题意,利用一次函数的性质和数形结合的思想解答.。
江苏省南京市八年级下学期语文第二次月考试卷
江苏省南京市八年级下学期语文第二次月考试卷姓名:________ 班级:________ 成绩:________一、语文基础知识及运用（45分） (共12题；共44分)1. （3分） (2017八上·高台月考) 选出下列划线字注音全对的一组（）A . 尴尬（jiā）歼灭（qiān）交卸（yù）骇（hài）B . 奔丧（bèn）诘问（jié）地窖（yáo）纳粹（suì）C . 蹒跚（pán）差使（chāi）谋杀（móu）荒谬（miù）D . 琐屑（xiè）制裁（cái）拂晓（fó）阻遏（jié）2. （3分）下列各项划线字注完全正确的一项是（）A . 手臂bèi疟子yào寒噤jìn锐不可当dānɡB . 蹿红cuàn愧怍zuò要塞sè负隅顽抗yǘC . 涎水yán诘问jié疮疤cuānɡ高屋建瓴línɡD . 掳走lǔ骇死hài取缔dì张皇失措huánɡ3. （3分）下面各组中有错别字的一组是（）A . 足智多谋昂手阔步筋疲力尽B . 旁门左道横行无忌惊心动魄C . 无计可施不屑一顾无以附加D . 自告奋勇凶神恶煞万籁俱寂4. （3分）(2019·潮南模拟) 下列各句中划线的词语使用不恰当的一句是（）A . 海天一色的青澳湾，历史悠久的总兵府，险峻高耸的黄花山……这些美景让每一位来南澳的游客都心旷神怡，流连忘返。
B . 凭借雄厚的经济实力和深厚的文化底蕴，汕头当之无愧地获得了2021年亚青会的主办权。
C . 对于重要的书，我们必须常常反复阅读，每读一次都会觉得开卷有益。
D . 环卫工人的劳动也许是具体而微的，但不可缺少，因为我们的城市需要整洁干净，他们应受到尊重。
2018-2019学年江苏省南京市金陵汇文学校八年级(上)期初数学试卷
2018-2019学年江苏省南京市金陵汇文学校八年级（上）期初数学试卷一、选择填空题（1-16每题3分，共48分）1．（3分）下列图形中，不是轴对称图形的是（）A．B．C．D．2．（3分）若a＞b，则下列不等式中成立的是（）A．a+2＜b+2B．a﹣2＜b﹣2C．2a＜2b D．﹣2a＜﹣2b 3．（3分）下列等式从左到右的变形，属于因式分解的是（）A．a（x﹣y）＝ax﹣ay B．x3﹣x＝x（x+1）（x﹣1）C．（x+1）（x+3）＝x2+4x+3D．x2+2x+1＝x（x+2）+14．（3分）如图，能判定EB∥AC的条件是（）A．∠C＝∠ABE B．∠A＝∠EBD C．∠C＝∠ABC D．∠A＝∠ABE 5．（3分）如图，△ABC中，∠ACB＝90°，沿CD折叠△CBD，使点B恰好落在AC边上的点E处，若∠A＝25°，则∠BDC等于（）A．50°B．60°C．70°D．80°6．（3分）下列命题中，①长为5cm的线段AB沿某一方向平移10cm后，平移后线段AB的长为10cm②三角形的高在三角形内部③六边形的内角和是外角和的两倍④平行于同一直线的两条直线平行⑤两个角的两边分别平行，则这两个角相等．真命题个数有（）A．1个B．2个C．3个D．4个二、填空题（共10小题，每小题3分，满分30分）7．（3分）世界上最小的开花结果植物是澳大利亚的出水浮萍，其果实的质量只有0.000 00076克．用科学记数法表示这个质量是克．8．（3分）已知：a+b＝﹣3，ab＝2，则a2b+ab2＝．9．（3分）如图，直线a∥b，三角板的直角顶点放在直线b上，若∠1＝65°，则∠2＝．10．（3分）二元一次方程x﹣y＝1中，若x的值大于0，则y的取值范围是．11．（3分）如果4x2+mx+9是完全平方式，则m的值是．12．（3分）将不等式“﹣2x＞﹣2”中未知数的系数化为“1”可得到“x＜1”，该步的依据是．13．（3分）已知s+t＝4，则s2﹣t2+8t＝．14．（3分）命题“直角三角形两锐角互余”的逆命题是：．15．（3分）如图，已知△ABC≌△DCB，∠BDC＝35°，∠DBC＝50°，则∠ABD＝．16．（3分）如图，将四边形纸片ABCD沿MN折叠，点A、D分别落在点A1、D1处．若∠1+∠2＝140°，则∠B+∠C＝°．三、解答题（共9小题，满分72分）17．（8分）计算：（1）（﹣）﹣2+（）0+（﹣5）3÷（﹣5）2（2）（﹣3a）2•a4+（﹣2a2）318．（8分）因式分解：（1）2x2﹣4x+2（2）（x2+4）2﹣16x219．（10分）解下列方程组：（1）（2）20．（6分）解不等式组：，并写出该不等式组的所有整数解．21．（6分）先化简，再求值：（x+3）（x﹣1）+（x+2）（x﹣2）﹣2（x﹣1）2，其中x＝．22．（6分）如图，由小正方形组成的L形图中，请你用三种方法分别在图中添加一个小正方形使它成为轴对称图形．23．（8分）如图，AB＝DF，AC＝DE，BE＝FC，问：△ABC与△DEF全等吗？AB与DF平行吗？请说明你的理由．24．（10分）某电脑经销商计划同时购进一批电脑机箱和液晶显示器，若购进电脑机箱10台，和液晶显示器8台，共需要资金7000元，若购进电脑机箱两台和液晶显示器5台，共需要资金4120元．（1）每台电脑机箱、液晶显示器的进价各是多少元？（2）该经销商计划购进这两种商品共50台，而可用于购买这两种商品的资金不超过22240元，根据市场行情，销售电脑机箱，液晶显示器一台分别可获得10元和160元，该经销商希望销售完这两种商品，所获得利润不少于4100元，试问：该经销商有几种进货方案？哪种方案获利最大？最大利润是多少？25．（10分）[阅读•领会]怎样判断两条直线是否平行？如图①，很难看出直线a、b是否平行，可添加“第三条线”（截线c），把判断两条直线的位置关系转化为判断两个角的数量关系．我们称直线c为“辅助线”．在部分代数问题中，很难用算术直接计算出结果，于是，引入字母解决复杂问题，我们称引入的字母为“辅助元素”事实上，使用“辅助线”、“辅助元”等“辅助元素”可以更容易地解决问题【实践•体悟】（1）计算（2+++）（+++）﹣（++）（2++++），这个算式直接计算很麻烦，请你引入合适的“辅助元”完成计算（2）如图②，已知∠C+∠E＝∠EAB，求证AB∥CD，请你添加适当的“辅助线”，并完成证明【创造•突破】（3）若关于xy的方程组的解是的解是•则关于x、y的方程组的解为（4）如图③∠A1＝∠A5＝120°，∠A2＝∠A4＝70°，∠A6＝∠A8＝90°，我们把大于平角的角称为“优角”，若优角∠A3＝270°，则优角∠A7＝2018-2019学年江苏省南京市金陵汇文学校八年级（上）期初数学试卷参考答案一、选择填空题（1-16每题3分，共48分）1．B；2．D；3．B；4．D；5．C；6．B；二、填空题（共10小题，每小题3分，满分30分）7．7.6×10﹣7；8．﹣6；9．25°；10．y＞﹣1；11．±12；12．不等式两边都乘以（或除以）同一个负数，不等号的方向改变；13．16；14．如果三角形有两个角互余，那么这个三角形是直角三角形；15．45°；16．110；三、解答题（共9小题，满分72分）17．；18．；19．；20．；21．；22．；23．；24．；25．x＝1，y＝﹣3．；250°；。
江苏省南京市鼓楼区金陵汇文学校2019-2020年下学期初二英语线上阶段检测(二)试卷(Word,无
金陵汇文初二英语线上阶段检测(二) （2020.03.15）一、听力(共20 小题。
每小题1 分，计20 分)1. Which picture are they talking about?A. B. C.2. Wha t’s Mary’s d ream work?A. B. C.3. Which clock is the g irl’s?A. B. C.4. Wha t’s the weather like today?A. B. C.5. What does Mary often do to help her mother?A. She often helps her mother to cook meals.B. She often helps her mother with the washing.C. She often helps her mother to clean the house.6. Ho w’s Jim?A. He’s OK.B. He’s ill.C. He’s returned home.7. What would the woman like?A. Tea.B. Juice.C. Coffee with milk.8. What do you think of the woman?A. She likes cleaning the windows.B. She doesn't like reading newspapers.C. She doesn't like sports.9. What does the woman mean?A. The exam will be easy for her.B. The exam is not important for her.C. She hasn’t prepared for the exam yet.10. How much should the man pay for the ticket？A. ￥64.B. ￥72.C. ￥96.听第1 段材料，回答第11 至12 题。
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2018-2019学年江苏省南京市鼓楼区金陵汇文中学八年级下学期第二次月考试卷总分:100分时间:60分钟一．单项选择(共15题，每小题1分，计15分)1. UINICEF wants to make world better place for children.A. a: theB. the; aC. the; theD. /; a【答案】B【解析】考察冠词。
让这世界成为一个更好的地方。
特指世界用the，一个地方用a。
选B。
2. It's kind them to give food and clothes to homeless people.They think it's important them to do so.A.of; forB. for; ofC. of; toD. to; for【答案】A【解析】考察It is 句型。
形容人的品质用of，形容事物的客观因素用for。
选A。
3. He has all his pocket money the local charity to help people in need.A. given; forB. raised; toC. provided; withD. donated: to【答案】D【解析】考察动词搭配。
句意：他把他的钱全捐给当地慈善机构了。
Donate money to…，选D。
4. Some of the problems of living in the sea are similar of living in outer space.A. with; thatB. to; oneC. to; thoseD. with; that【答案】C【解析】考察介词搭配。
第一个空be similar to固定搭配。
第二个空those代指生存空间，选C。
5. There is a big stone my way my way home yesterday.A. in; on;B. in; by;C. On; in;D. In; in;【答案】A【解析】考察介词搭配。
In my way是挡到我的路了，on my way home在我回家的路上。
选A。
6. —You should be careful when .—Yes, I will. I want to know when to have a rest.A.driving; stoppingB. driving, to stopC. to drive; stoppingD. to drive; to stop 【答案】B【解析】考察when做连词和不定式to do表示目的。
第一个空when做连词，后动词要用ing 形式。
第二个空when to stop什么时候去停止，不定式to do表示目的。
选B。
7. —Andy won the first place!-really? —Sounds to believe.A. too goodB. good enoughC. so goodD. quite good【答案】A【解析】考察固定搭配。
首先原句有个to，A too …to，太…以至于…。
句意：听起来太好了以至于不敢相信。
选A。
8. —Who can help me carry the heavy box?—I think David is to do it. But the door is for him to go through .A. too strong; too narrow; itB. strong enough; too narrow; itC. strong enough; too narrow; /D. strong enough; narrow enough; /【答案】C【解析】考察固定搭配。
大卫足够强壮去做strong enough to，门对他来说太窄了不能通过，too narrow，前面门出现了后面不需要加it。
选C。
9. —When did he go to bed yesterday?—.A.By the time his mother came backB. Not until his mother came backC. Until his mother came backD. Since his mother came back【答案】C【解析】考察Not until。
句意：—他昨晚什么时候睡觉的？—直到他妈妈回来了才睡。
He didn’t go to bed until his mother came back,选B。
10. Smart phones can be used to for information.But my grandparents are not used to information on such a small screen.A.search; readingB. searching; readingC. search; readD. searching; read 【答案】A【解析】考察短语辨析。
第一个空被用来做be used to do，第二个空be used to doing习惯于，根据句意选A。
11. Last spring, there were over 100 cases of H7N9. Luckily, 80 percent of them .A. were curedB. curedC. have curedD. were curing 【答案】A【解析】考察被动语态。
首先时态过去时，排除C，语态被动。
选A。
12. The computer costs so that I can’t afford it.A. ExpensiveB. expensive, buyingC. much, to buyD. much, buying 【答案】C【解析】考察介词搭配。
第一个空cost so much，花费了那么多，第二个空can’t afford to buy 买不起。
选C。
13. —The volunteers really provided the athletes with support.—Exactly. they helped make the event!A. What a great successB. What great successC. How a great successD. How great success【答案】A【解析】考察感叹句。
Success抽象名词，巨大的成功great success时可数，感叹词选what。
选A。
14. —Are you getting on well with your project?—Well, it is hard for me to with it. But I will never give it up.A.carry outB. carry onC. carry awayD. carry off【答案】B【解析】考察动词搭配。
A执行B继续C运走D夺走。
句意：对我来说继续下去这个项目很难。
选B。
15. —I’ll try harder next time.—You have said it one hundred times. But .A. the early bird catches the worm.B. a friend in need is a friend indeed.C. you can't burn the candle at both endsD. actions speak louder than words【答案】D【解析】考察情景交际。
句意：—我下次会更努力的。
—行动比语言更响亮。
选D。
二、完形填空（共10小题；每小题1分，计10分）Dear Miss Li,I’d like to thank you for sending money to“Animal Helpers”, an organization set up to help disabled people. You have helped make (1)______possible for me to have Lucky who have filled my life (2)______pleasure. Let me tell you my story.Being blind, deaf, unable to walk or use your hands easily is something (3)______ most people cannot imagine(想象). But there are many people who face these challenges（挑战）, and Iam one of them because I can’t use my arms or legs well, normal things like (4)______ the telephone, opening and shutting doors or carrying things (5)______difficult for me. Then oneday last year, a friend oftalk to Animal Helpers to see if it would be possible for me to get a specially (7)______dog. I told her that I love animals and that I’d love to have a dog.After six months of training with a dog at Animal Helpers, I was able to bring him home. My dog’s name is Lucky – a good name for him because I feel very lucky to have him. You see, I’m only able to have a “dog-helper” (8)______ your kind donation!(9)______does lucky help me? you might ask? Well, he has been trained to understand different words, such as “upstairs” and“upstairs” .Lucky is an amazing dog. I’ll send you a photo of him (10)______ you like, and I can show you how he helps me too. And I would like to thank you again for supporting Animal Helpers. Your donation is greatly appreciated and the money is well used to help disabled people like me. Best wishes,Liz Smith( )1. A. it B. this C. that D.those( )2. A. in B.with C. on D. for( )3. A. that B. which C. what D.where( )4. A answers B. answered C. to answer D.answering( )5. A have always been B. has always been C. had always D. was always( )6. A. me B.my C. mine D. us( )7. A. trains B. training C. to train D. trained( )8. A instead of B. because C. because of D. instead( )9. A Why B. How C. What D. When( )10. A. before B. when C.if D. unless【参考答案】ABADA CDCBC【思路解析】1.考查it作为形式宾语，真正的宾语是后面的to do，选A。