人教版八年级上册期中测试题附答案(十五)
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人教版八年级数学上册期中测试卷一、单选题(本题共10小题,每小题5分,共50分)1.下列命题正确的是()A.三角形的三条中线必交于三角形内一点B.三角形的三条高均在三角形内部C.三角形的外角可能等于与它不相邻的内角D.四边形具有稳定性【答案】A【解析】【解答】解:A、三角形的三条中线必交于三角形内一点,符合题意;B、钝角三角形的三条高有两条在三角形外部,故不符合题意;C、三角形的外角等于与它不相邻的两个内角之和,故不符合题意;D、四边形具有不稳定性,故不符合题意,故答案为:A.2.若等腰三角形的一边长等于5,另一边长等于3,则它的周长等于().A.10B.11C.13D.11或13【答案】D【解析】【解答】根据题意,需分两种情况讨论:当两腰为5,底边为3时,周长等于13;当两腰为3,底边为5时,周长等于11.且两种情况均符合三角形三边之间关系定理,所以周长为11或13,故答案为:D.3.如图,在△ABC中,AB=5,BC=8,∠B=60°,将△ABC沿射线BC的方向平移,得到△A′B′C′,再将△A′B′C′绕点A′逆时针旋转一定角度后,点B′恰好与点C重合,则平移的距离为()A.2B.3C.4D.5【答案】B【解析】【解答】解:∵在△ABC中,AB=5,BC=8,∠B=60°,将△ABC沿射线BC的方向平移,得到△A′B′C′,∴A′B′=AB=5,∠A′B′C=∠B=60°∵将△A′B′C′绕点A′逆时针旋转一定角度后,点B′恰好与点C重合,∴A′B′=A′C=5∴△A′B′C为等边三角形∴B′C=A′B′=A′C=5∴平移的距离BB′=BC−B′C=3故答案为:B.4.如图,直线l外有不重合的两点A,B.在直线l上求一点C,使得AC+BC的长度最短,作法为:①作点B关于直线l的对称点B'.②连接AB'交直线l于点C,则点C即为所求.在解决这个问题时,没有用到的知识点是()A.线段的垂直平分线性质B.两点之间线段最短C.三角形两边之和大于第三边D.角平分线的性质【答案】D【解析】【解答】解:∵点B和点B′关于直线l对称,且点C在l上,∴CB=CB′.∵AB′交l于C,且两条直线相交只有一个交点,∴CB′+CA=AB′,即CA+CB=AB′.任取直线l上一点C′,与点C不重合,则C′B′+C′A>AB′,即AB′是CA+CB的最小值. 本题在解答过程中利用了线段垂直平分线的性质定理:两点之间,线段最短,体现了转化思想,验证时利用三角形的两边之和大于第三边. 没有用到的知识点是:角平分线的性质,故答案为:D.5.如图,CA=CB,AD=BD,M、N分别为CA、CB的中点,∠ADN=80°,∠BDN=30°,则∠CDN的度数为()A.40°B.15°C.25°D.30°【答案】C【解析】【解答】解:在∠CAD和∠CBD中,{CA=CB AD=BD CD=CD,∴∠CAD∠∠CBD(SSS),∴∠CDA=∠CDB,∠A=∠B,又∵AC=CB,M,N分别为CA,CB的中点,∴AM=BN,又AD=BD,∴∠ADM∠∠BDN(SAS),∴∠ADM=∠BDN=30°,∵∠ADN=80°,∴∠ADM+2∠CDN=80°,∴∠CDN=25°,故答案为:C.6.如图,在Rt∠ABC中,∠BAC=90°,AB=AC,AD∠BC,垂足为D、E,F分别是CD,AD上的点,且CE=AF。
人教版八年级上册英语期中考试试题(附答案)一、完形填空1. I think the best place togo on Sunday is the zoo. When you are 1 , you can go there with your family. 2 the zoo, there are many animals: elephants, deer , 3 , rabbits and other animals. Elephants are the 4 animals on land. I 5 there is a baby elephant in our zoo. So I want to 6 at it. Yu Xuan wants togo with me. She says, " —7 we go there together?" "Sure!" I say. "We can 8 a goodtime there. But let's9 there at half past four. I have 10 homework to do."1. A. busy B. free C. young D. clean2. A. In B. On C. For D. Near3. A. monkeys B. monkey C. two monkey D. one monkeys4. A. youngest B. smallest C. biggest D. tallest5. A. listen B. listen to C. hear of D. hear6. A. looks B. have a look C. see D. have a see7. A. Can B. Could C. Shall D. Would8. A. get B. have C. be D. has9. A. go B. goes C. to go D. going10. A. few B. little C. much D. many二、阅读理解2.阅读短文,从下面每题的A 、B 、C 、D 四个选项中选出最佳选项。
答卷时应注意事项1、拿到试卷,要认真仔细的先填好自己的考生信息。
2、拿到试卷不要提笔就写,先大致的浏览一遍,有多少大题,每个大题里有几个小题,有什么题型,哪些容易,哪些难,做到心里有底;3、审题,每个题目都要多读几遍,不仅要读大题,还要读小题,不放过每一个字,遇到暂时弄不懂题意的题目,手指点读,多读几遍题目,就能理解题意了;容易混乱的地方也应该多读几遍,比如从小到大,从左到右这样的题;4、每个题目做完了以后,把自己的手从试卷上完全移开,好好的看看有没有被自己的手臂挡住而遗漏的题;试卷第1页和第2页上下衔接的地方一定要注意,仔细看看有没有遗漏的小题;5、中途遇到真的解决不了的难题,注意安排好时间,先把后面会做的做完,再来重新读题,结合平时课堂上所学的知识,解答难题;一定要镇定,不能因此慌了手脚,影响下面的答题;6、卷面要清洁,字迹要清工整,非常重要;7、做完的试卷要检查,这样可以发现刚才可能留下的错误或是可以检查是否有漏题,检查的时候,用手指点读题目,不要管自己的答案,重新分析题意,所有计算题重新计算,判断题重新判断,填空题重新填空,之后把检查的结果与先前做的结果进行对比分析。
亲爱的小朋友,你们好!经过两个月的学习,你们一定有不小的收获吧,用你的自信和智慧,认真答题,相信你一定会闯关成功。
相信你是最棒的!八年级生物期中检测题时间:60分钟满分:100分得分:一、选择题:请将正确答案填在下列空表中(每题2分,共50分)1.海蜇等腔肠动物排出食物残渣的方式是( )A.由肛门排出B.由口排出C.由胞肛排出D.由细胞排出2.下列不属于扁形动物的是( )A.涡虫B.血吸虫C.珊瑚虫D.猪肉绦虫3.人无法将寄生于体内的蛔虫消化,这是由于蛔虫( )A.体表有表皮层B.体壁有肌肉C.体表有角质层D.有体壁4.生物防治是现在及今后农、林、牧业防治虫害的主要方法,下列哪项不是其优点( )A.可以少用或不用农药,减少农药对环境的污染B.自然界中所有的农作物害虫都能用生物防治来消灭C.可以节约防害的成本,提高农业生产的经济效益D.减少生产环节,降低开发成本且治虫的效果可持续5. 右图圆圈表示生物本身具有的特点, 重合部分表示它们的共同特点, 下列观点不正确的是()A.P可以表示用皮肤辅助呼吸B.Q可以表示生态系统的消费者C.E可以表示体内有脊柱D.F可以表示真正的陆生动物6.下列动物中属于节肢动物的是( )①蝗虫②蚯蚓③乌贼④螳螂⑤海葵⑥蜂鸟⑦蜘蛛⑧蜈蚣⑨水蛭⑩青虾A.①④⑦⑧⑩B.②③⑤⑥⑨C.②④⑦⑧⑩D.①③⑤⑥⑩7.下列有关“饲养和观察蚯蚓”实验的几种说法,错误的是()A.用手轻轻抚摸蚯蚓身体腹面,会有粗糙不平的感觉B.蚯蚓身体由许多体节构成,靠近环带的一端是后端C. 蚯蚓的呼吸要靠能分泌黏液的湿润体壁来完成D.实验中要经常用浸水的湿棉球轻擦蚯蚓的体表8.下列哪种动物不属于鱼类( )A.海马B.小金鱼C.中华鲟D.白鳍豚9.下列关于蝗虫外骨骼的叙述中错误的是( )A.具有保护作用B.在生长和发育中终身保存C.能防止体内水分的蒸发D.在生长发育中有蜕皮现象10.一身青绿色的皮,一个又大又吸引人的脑袋,脑袋上有一对很大很圆的眼睛,还有一张能发出宏亮声音的大嘴巴,这就是活泼而又机灵的青蛙,青蛙的幼体和成体的呼吸器官分别是( )A.肺、皮肤和肺B.鳃、皮肤和肺C.鳃、皮肤D.鳃、气管11.东营黄河三角洲动物园已于2012年“十一”正式开放,首批引进了东北虎、金钱豹、狗熊、斑马、金刚鹦鹉等60余种野生动物。
期中综合检测一、单项选择(共15小题;共15.0分)1. --- I enjoyed the performance very much.--- Yes, it was really good. I think boy in white was the best actor.A. aB. anC. theD. /2. After hearing the news, Jim was so excited that he could say a word.A. everB. almostC. hardlyD. always3. Though they are twins, they're different each other in many ways.A. forB. inC. ofD. from4. --- Who helped you clean the classroom yesterday?--- . I did it all by myself.A. SomeoneB. AnyoneC. NobodyD. Everybody5. the girl is only five, she looks after her father and cooks meals every day.A. IfB. BecauseC. AlthoughD. As6. It's much to have a small lovely room than a big cold one.A. goodB. wellC. betterD. best7. --- do you go for a trip with your family?--- Once a week.A. How soonB. How farC. How oftenD. How long8. Our good friend is going to get married, so we decide him a present together.A. buyB. to buyC. buyingD. buys9. Don't play with the knife, or you'll cut .A. youB. yourC. yoursD. yourself10. The British Museum is very serious. Visitors keep quiet.A. mayB. mightC. canD. must11. It was lovely weather we decided to go camping.A. such a; thatB. such; thatC. such; asD. so; that12. Greece and Spain European countries.A. both areB. are bothC. all areD. are all13. All the students are listening to the teacher except Tom.A. slowlyB. clearlyC. quicklyD. carefully14. Dream Clothes has service in town.A. goodB. wellC. betterD. the best15. --- Which one of these do you want?--- . Either will be OK.A. No problemB. I'm sureC. Come onD. I don't mind二、完形填空(共10小题;共15.0分)Cars are very popular in America. When kids are fourteen years old, most of them dream of (梦想) having their own 16 . Many students do parttime jobs after school to 17 a car. In most places young people began 18 to drive in high school. They have to 19 a driving test to get a license(执照). Learning to drive and getting a driver's license may be the most 20 things in their lives.Americans seem(似乎) to love their cars 21 than anything else. They would like 22 their cars to a "hospital" even because of a small problem. At weekends, people 23 most of their time washing and waxing(打蜡) their cars. For some families, one car is not enough. They often have two 24 even three. Husbands need cars to go to work. Housewives need cars to go shopping or to take the children to school or 25 activities.16. A. cars B. computers C. bikes D. houses17. A. borrow B. buy C. lend D. sell18. A. learn B. learned C. learnt D. to learn19. A. make B. spend C. pass D. keep20. A. angry B. exciting C. boring D. active21. A. more B. much C. less D. few22. A. take B. make C. to make D. to take23. A. cost B. finish C. spend D. pay24. A. and B. or C. so D. but25. A. other B. another C. others D. the other三、阅读理解(共10小题;共20.0分)AOne of the easiest ways to keep fit is to do jogging. Jogging is the name for a very gentle(舒缓的) running—it is just a little faster than walking.Start slow jog 20 meters, then walk 20 meters. Little by little, if you are not feeling very tired, you may do more jogging and less walking. Finally, jog the whole way. It will be easy for you to start jogging for 15 minutes twice a week, slowly, increase this to 20-30 minutes every day. The longer you join in jogging, the more you enjoy it and the healthier you will become. Some people like jogging alone, and others enjoy doing it with friends. Jogging in groups makes more people keener(更加热心的), because you just cannot stay in bed while there is a group of friends waiting outside.If you want to start jogging, prepare a pair of comfortable shoes and a determined mind.26. Jogging means .A. walkingB. running as fast as possibleC. slow runningD. jumping27. If you are not feeling very tired, .A. you may do more joggingB. you may not do more joggingC. you are very healthy and needn't do more joggingD. you may just do more walking28. One good point of jogging in groups is .A. you don't feel lonelyB. you are not likely to give it up halfwayC. you can run fasterD. you won't feel tired29. If you want to start jogging, what you need most is .A. a pair of comfortable shoes and a determined mindB. a sports suit and a lot of studentsC. a partner and a good planD. a strong body30. The meaning of the underlined word "determined" in the passage is .A. 刚强的B. 坚定的C. 伟大的D. 坚硬的BThere is a cat in the Shrek movies. The cat's name is Puss. He always wears a hat, a sword(剑) and a pair of boots. And he likes to help others. Do you want to know more about this cat in boots? You can see the new movie Puss in Boots《穿靴子的猫》.Before Puss meets Shrek, he arrives at a town. Puss has a childhood friend, Humpty. They have the same dream. They want to find the magic beans (魔豆). But two bad persons, Jack and Jill want to use the beans to rule the world. They already take a few steps ahead. They put the magic beans in a box and a wild pig watches the beans day and night. Puss has to get the beans to save the town. What he has done makes him a brave hero among the people in the town.The movie is very popular with American kids. Let's see what they said."Humpty is very funny. Jack and Jill are a little scary," said Ryan."This 3D cartoon movie is really cool! You can't miss(错过) it," said Nicole.31. Which of the following is Puss according to the passage?A.B.C.D.32. Puss and Humpty's dream is .A. to get the magic beansB. to become good friendsC. to meet Shrek againD. to have a pair of boots33. Jack and Jill keep the magic beans .A. to travel around the worldB. to help the people in the townC. to rule the worldD. to find Puss and Humpty34. According to the passage, Puss is very in the movie.A. funnyB. scaryC. badD. brave35. What does Nicole think of Puss in Boots?A. The movie is kind of boring.B. The movie isn't very good.C. The movie is less popular with children.D. It's a wonderful 3D cartoon movie.五、单词拼写(单句首字母填空)(共3小题;共3.0分)41. My brother has a toothache, so he has to see the d .42. The girl isn't old e to dress herself.43. Mike hurt his back seriously and could h get out of bed without help.六、单词拼写(根据中文提示拼写单词)(共2小题;共2.0分)44. The Internet is very useful. We can get a lot of (信息) from it.45. A lot of people here, for (实例), Mr. John, would rather have coffee.七、适当形式填空(单句适当形式)(共5小题;共5.0分)46. What's the (different) between Chinese and English?47. Because he exercises every day, he is very (health).48. Sue listened (quiet), and did not say a word.49. Our company is in need of a large number of (talent) people.50. He speaks so (loud) that he could be heard by everyone in the room.八、翻译(根据中文提示完成句子)(共5小题;共5.0分)51. 因为再次迟到,他丢掉了工作。
【期中测试AB卷】人教版八年级上册英语·A基础测试一、选择填空(15小题,每小题1分,共15分)从A、B、C、D四个选项中选出一个最佳答案。
1.— Let’s go to the supermarket?—Well. There is ________ in the fridge. We should do some shopping. A.something B.nothing C.none D.anything 2.—Mum, today is Tom’s birthday. Shall we eat some birthday cake?—Yes. Help ________ to some cake, children.A.ourselves B.themselves C.yourselves D.yourself 3.—The air pollution(污染) is a serious problem in China.—I agree. If there are________ people driving, there will be ________ pollution. A.fewer, fewer B.less, less C.less, fewer D.fewer, less 4.—Do people in the UK and the USA use different words to refer to the same thing?—Yes, People in Britain say “holiday” while people in the USA say ________.A.lorry B.autumn C.yard D.vacation 5.—He was chosen to be a volunteer of the Olympic Games.—Great! He speaks English ________ the foreigners.A.as well as B.as badly as C.as bad as D.as good as 6.—Don’t touch the machine, children, or you may hurt ________.—Sorry, we ________.A.yourself; won’t B.yourself; can’t C.yourselves; don’t D.yourselves; won’t7.—Mum, can you tell me how to use the washing machine?—Oh, I’m busy now. Why not read the ________ yourself?A.instructions B.information C.advertisements D.magazines 8.Which underlined letter pronounces differently from the others?A.plan B.salad C.plate D.badminton 9.—You can’t stand soap operas, can you?—No. I think they’re ________.A.meaningless B.educational C.creative D.relaxing10.—Would you like to stay with us this weekend?—Sorry, but my parents and I planned ________ Beijing a long time ago.A.visited B.visiting C.to visit D.visit11.—Is your new sweater different ________ mine?—No, mine is similar ________ yours.A.from; as B.as; to C.from; to D.to; as 12.—Did you find ________ in the book?—Yes. It talks about how to be a good kid. I’m ________ in it.A.something funny; interesting B.funny something; interesting C.anything funny; interested D.funny anything; interested 13.—How was your vacation, Tina?—Fantastic. _______ it rained a lot, _____ we enjoyed ourselves.A.Although; but B.But; /C.Although; /D.Because; so 14.—Where is Michael, do you know?—He didn’t come to school today. He ________ ill, I think.A.maybe B.can be C.may be D.must be 15.— It’s cold today. Would you mind ________ the windows?— Of course not.A.to close by me B.we closing C.my closing D.I close二、完形填空(10小题,每小题1分,共10分)先通读短文,掌握其大意,然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。
八年级上册语文期中考试试卷及答案人教版八年级上册语文期中考试试卷及答案人教版在初二的语文期中复习阶段,一定要做好语文期中试卷的复习。
那么关于八年级语文期中试卷怎么做呢?以下是小编准备的一些八年级上册语文期中考试试卷及答案,仅供参考。
八年级上册语文期中考试试卷(满分:150分;考试时间:150分钟)一、积累运用(30分)1、阅读下面一段话,按要求答题。
(5分)阅读“长征之歌”,眼前似乎再现了红军长征的动人情景,不禁心潮(péngpài) ;走进“爱国情怀”,耳畔似乎听到海外游子思念故土的心声,爱国之情由然而生;一个背影,融注了深深的父爱,让我们明白致爱亲情是我们人生的珍宝。
根据拼音写汉字或给加粗字注音。
(3分)② 上述文字中有两个错别字,找出来并加以改正。
(2分)2.选出下列各句中加点的成语使用不恰当的一项。
(2分)A.如今的灌南新城,交通四通八达,高楼鳞次栉比,人民安居乐业。
B.年届四十的王刚本来身强体壮,不幸被查出身患癌症,一下子步入了风烛残年。
C.季羡林先生学富五车,著作等身,是世人敬仰的“学界泰斗”。
D.连云港拥有花果山、渔湾、连岛等一大批令人叹为观止的旅游胜地。
3.正确默写:(10分)(1)落红不是无情物,。
( 作者:《己亥杂诗》)(2)商女不知亡国恨,。
(杜牧《》)(3)____________ __,零丁洋里叹零丁。
人生自古谁无死,_________ ___。
(4) ,,像山泉在呜咽,像波涛在澎湃。
(5)《七律·长征》一诗采用夸张手法的诗句是,。
4.下面语段中有三处表达错误,请把它们找出来,并加以改正。
(3分)①创建文明城市不仅能够提升市民精神生活的品位,而且可以进一步完善城市基础设施。
②在省级文明城市创建活动中,全市人民参与程度的高低和创建力度的大小是成功的关键。
③我们要树立“港城是我家,文明靠大家”的观念,以高度的责任感、积极的主人翁姿态参与到投身创建活动中去。
八年级上册语文期中考试试题一、选择题1.下列句中没有语病的一项是()A.由于青少年缺乏分辨力,容易被不良信息诱导,产生思想行为上的偏差。
B.《厉害了,我的国》这部纪录电影,宣传了我国的大国风采。
C.“中国梦”的实现,需要每个炎黄子孙的共同努力与大义担当。
D.我们应该遵守交通规则,以免不出现事故。
二、句子默写2.补写出下列句子中的空缺部分。
⑴攀条折其荣,________________________。
(《庭中有奇树》)⑵________________________,江入大荒流。
(李白《渡荆门送别》)⑶风声一何盛,_________________________ !(刘桢《赠从弟(其二)》)⑷________________________,行止依林阻。
(曹植《梁甫行》)⑸大漠孤烟直,________________________。
(王维《使至塞上》)第2 页⑹________________________?烟波江上使人愁。
(崔颢《黄鹤楼》)⑺几处早莺争暖树,________________________。
(白居易《钱塘湖春行》⑻自康乐以来,________________________。
(陶弘景《答谢中书书》)⑼《与朱元思书》中,总概山水特征的语句是:______________ ,________________。
三、基础知识综合3.阅读下面的文字,按要求作答。
学习《藤野先生》,我们认识了huì㈠(A.诲 B.悔)人不倦、治学严谨、没有狭隘的民族偏见的的藤野先生,他激励鲁迅继续写令“正人君子”所深恶痛疾的文字;学习《首届诺贝尔奖颁发》,我们了解到诺贝尔奖是根据诺贝尔的甲(A.遗愿 B.遗嘱)设立的,是为了奖励那些为人类做出最大贡献的人;朗读《“飞天”凌空》,我们仿佛看到了中国姑娘吕伟在第九届亚运会中夺得十米跳台跳水冠军的乙(A.雄姿 B.英姿);朗读《一着.㈡(A.zháo B.zhuó)惊海天》,我们心潮澎湃,豪情万丈,①,②,③_______,在同一时刻汇聚:我们的祖国真正强大起来了!(1)为文中①处拼音选择正确汉字,根据②处加点字选择正确读音,只填序号。
人教版八年级上册期中试卷【含答案】专业课原理概述部分一、选择题(每题1分,共5分)1. 下列哪种细胞器在植物细胞和动物细胞中都存在?A. 叶绿体B. 线粒体C. 溶酶体D. 中心体2. 下列哪个元素是组成蛋白质的基本元素?A. 碳B. 氢C. 氧D. 氮3. 下列哪种物质是植物光合作用的产物?A. 氧气B. 二氧化碳C. 葡萄糖D. 氨基酸4. 下列哪种生物属于单细胞生物?A. 细菌B. 蘑菇C. 草履虫D. 蚂蚁5. 下列哪种生物是生态系统中的生产者?A. 植物B. 动物C. 细菌D. 藻类二、判断题(每题1分,共5分)1. 细胞核是细胞的控制中心。
()2. 植物细胞壁的主要成分是纤维素和果胶。
()3. 动物细胞和植物细胞都有细胞膜、细胞质和细胞核。
()4. 酶是一种催化剂,可以加速化学反应的速率。
()5. 呼吸作用是生物体将有机物分解为无机物的过程。
()三、填空题(每题1分,共5分)1. 细胞质是细胞内的液体,它包括细胞器和______。
2. 植物光合作用是在叶绿体中进行的,它将水和二氧化碳转化为______和氧气。
3. 细菌的基本结构包括细胞壁、细胞膜、细胞质和______。
4. 生态系统中的生产者是指能够进行______作用的生物。
5. 酶是一种特殊的蛋白质,它具有高度的______和特异性。
四、简答题(每题2分,共10分)1. 简述细胞膜的功能。
2. 简述植物光合作用的意义。
3. 简述酶的特性。
4. 简述生态系统的组成。
5. 简述细胞呼吸的过程。
五、应用题(每题2分,共10分)1. 如果一个生态系统中的植物数量减少,会对动物数量产生什么影响?2. 如果一个细菌失去了细胞壁,会发生什么?3. 如果一个细胞失去了细胞核,会发生什么?4. 如果一个生物体失去了酶,会发生什么?5. 如果一个生物体停止呼吸,会发生什么?六、分析题(每题5分,共10分)1. 分析植物光合作用和动物呼吸作用的区别和联系。
中考复习人教版八年级上期中检测试卷一、积累与运用(25分)1.下列加点字注音全都正确的一项是(3分)( )A.仄.歪(zè) 疟.子(yào) 歼.灭(qiān)B.箱箧.(qiè) 瞥.见(piē) 震悚.(sǒnɡ)C.憎.恶(zènɡ) 尴.尬(ɡān) 纤.细(xiān)D.提.防(dī) 蹒.跚(mán) 惶.恐(huánɡ)【解析】选B。
A项“歼”应读jiān;C项“憎”应读zēnɡ;D项“蹒”应读pán。
2.下列词语的书写全部正确的一项是(3分)( )A.赃物踌躇张慌失措荡然无存B.推崇伧俗眼花缭乱响彻云宵C.魅力揩汗长途拔涉月明风清D.滞笨轮廓丢人现眼独一无二【解析】选D。
A项“慌”应为“皇”;B项“宵”应为“霄”;C项“拔”应为“跋”。
3.下列句中加点成语运用恰当的一项是(3分)( )A.这里的建筑布局,环境气氛,和前几部分大相径庭....。
B.虽然敌人来势凶猛,锐不可当....,但我军顽强奋斗,终于击溃了敌人的疯狂进攻。
C.“感动中国”人物刘盛兰得知自己“感动中国”,老人摆摆手,“我所做的事微不足道....,只希望这些孩子们能好好学习,将来做国家有用的栋梁之材”。
D.2013届二班劳动委员田景耀学习好、工作好、人品好,在班级同学中德高望重....。
【解析】选C。
A项“大相径庭”表示彼此相差很远或矛盾很大。
应为“迥然不同”。
B项“锐不可当”形容来势凶猛,不可阻挡,用在敌人身上不恰当。
D项使用对象不当,“德高望重”指品德高尚,名望很大,一般形容长辈。
4.下列表述有误的一项是(3分)( )A.小说《芦花荡》的作者是孙犁,其中主人公是一位干瘦的老头,叙述的故事发生在抗日战争时期。
B.《阿长与<山海经>》的作者是我国现代文学的奠基人鲁迅,本文选自他的小说集《呐喊》。
C.《背影》是朱自清写的一篇表现父子之爱的纪实散文,语言朴素自然。
最新人教版八年级上册英语期中考试试题(含答案)FPG新人教版八年级上册期中测试卷满分120分,考试时间120分钟)姓名:________________ 成绩:________________一、单项选择:(共20小题,计20分)1.Don't eat too much food in the evening。
It's bad for you.2.The more exercise you take。
the healthier you will be.3.—Are you going to Tibet for n?Yes。
I want you to provide me with some n about it. 4.—What a heavy rain。
Will it last long?I'm afraid so。
We're XXX.5.You can have a XXX.6.It's too hot。
I can't wait to swim in the lake.7.David found a little girl crying on his way to school。
andhe called the police for help.8.XXX.9.He knocked on the door but nobody answered.10.Before she went abroad。
she XXX.11.I will send you an email when I arrive in Canada.12.XXX student that he always gets high marks.13.Many students have interests。
Some interests are relaxing。
XXX.14.Please return the book back tomorrow when you come.15.Don’t worry。
人教版八年级上册期中测试题附答案(十五)
一、选择题(下列各小题的四个选项中,只有一个符合题意,每小题
3分,共30分)
1.实数2的算术平方根是()
A.2 B.-2 C.±2 D.2
2.下列图形中既是轴对称图形又是中心对称图形的是()
A. B. C. D.
3.台湾是我国最大的岛屿,总面积为35989.76平方千米.用科学记数法应表示为(保留三个有效数字)()A. 6
10
59
.3⨯平方千米 B. 6
10
60
.3⨯平方千米
C. 4
10
59
.3⨯平方千米 D. 4
10
60
.3⨯平方千米
4.如图,点P是∠BAC的平分线AD上一点,PE⊥AC于点E.已知PE=3,则点P到AB的距离
是()A.3 B.4 C.5 D.6
第4题第5题
5.如图,□ABCD的周长是28cm,△ABC的周长是22cm,则AC的长为()A.4 cm B.6 cm C.8 cm D. 12 cm
6.在
2
2
、
4
π
、732
.1、3
27
1
-、3.0 、16、
7
22
-、38.0中,属于无理数的有()A.2个 B.3个 C.4个 D.5个
7.下列由线段a、b、c组成的三角形是直角三角形的是()
A
B C
D
A .a=4,b=5,c=6
B .a=3,b=4,c=7
C .a=15,b=17,c=6
D .a=3,b=2,c=5
8.下列条件不能..判定四边形ABCD 是平行四边形的是 ( ) A .AB ∥CD ,AD ∥BC B .AB ∥CD ,∠A=∠C C .AB ∥CD ,AD=BC D .∠A=∠C ,∠B=∠D
9.下列四张三角形纸片,剪一刀能得到等腰梯形的有 ( )
A .1张
B .2张
C .3张
D .4张
10.下列平行四边形中,其图中阴影部分面积不一定等于平行四边形面积一半的是 ( )
A .
B .
C .
D .
二、填空题(每小题3分,共24分)
11.2的倒数是 . 12.从镜子中看到的一串数字是
,这串数字应为 .
13.在△ABC 中,∠A=60°,若使△ABC 为正三角形,请你再添一个..条件: . 14.一块正常运行的手表,当时针旋转15°时,则分针旋转 °. 15.把一张长方形纸按如图所示折叠,所得的四边形ABCD 是 四边形. 16.如图,是一个数值转换机的示意图,当输入的值x = 3时,输出的结果为 .
第15题
第17题 D
C B
A
P
E
C
A
50︒
50︒
50︒
50︒
90︒
80︒
70︒
50︒
17.△ABC 是一个边长为2cm 的正三角形,AD 为它的中线,点E 是边AC 的中点,点P 为线段AD 上一动点,则PC PE +的最小值是 cm . 18.请你观察表中的规律,在表中写出第n 项的值:
三、(本大题共三小题,第19、20小题每题4分,第21小题9分,
共17分.)
19.计算:π22+.(要求:结果保留3个有效数字)
(参考数值:414.12≈, 142.3≈π.)
20.求x 的值:x 3
=-64.
21.请你在下列每一个5×7的方格纸上,任意选出6个小方块,用笔涂黑,使被涂黑的方
格所构成的图形既是轴对称图形,又是中心对称图形.(要求:不同的方格上画出不同的图形,画出三个即可.)
图1 图2 图3
四、(本大题共两小题,每小题 8分,共16分)
22.已知:如图,平行四边形ABCD
中,E 、F 分别是边BC 和AD 上的点.
求证:△ABE ≌△CDF
C
B
A
23.如图,已知ABC ∆.
(1)将△ABC 绕点A 按逆时针方向旋转90°,得到对应△ADE ,请画出△ADE ; (2)连接BD,写出ABD ∆的形状(只写结果,不需证明).
五、(本大题共两小题,每小题 10分,共20分)
24.如图是一个长方体盒子,棱长AB=3cm ,BF=3cm ,BC=4cm .
⑴连接BD ,求BD 的长;
⑵一根长为6cm 的木棒能放进这个盒子里去吗?说明你的理由.
25.如图,在△ABC 中,AB=AC ,点D 在线段CA 的延长线上,且DA=AC.
⑴当∠D=25°时,求∠DBC 的度数; ⑵当∠D= x °时,求∠DBC 的度数.
D
C
B
A
H
G
F
E
D
C
B
A
六、(本大题共一小题,满分13分)
26.已知,如图甲:△ABC 是等腰直角三角形,∠ACB=90°,△A CD 是等边三角形. (1)填空:当△A CD 绕点C 顺时针旋转 度时,旋转后的△A CD 与△ABC 构成一个轴对称图形(旋转的角度小于360°);
(2)把图甲中△A CD 绕点C 顺时针旋转60°后得到如图乙,并连接EB ,设线段CE 与AB 相交于点F.
①求证:BE=BF ;
②若AC=2,求四边形ACBE 的面积.
图 甲 图 乙
参考答案
D
B
A
F E
C B
A
一、选择题(共10小题,每小题3分,共30分)
1~5:ADDAC 6~10:BBCBD
二、填空题(共8小题,每小题4分,共24分) 11.
2
1
22或
; 12.81007; 13.BC AB BC AC AC AB ===或或 6060=∠=∠C B 或或; 14.180; 15.平行; 16.5; 17.3;
18.12
+n
三、(共3小题,共17分)
19.7.70;(结果没取近似得2分) 20.4-=x 21.略(每画正确一个3分) 四、(共2小题,每小题8分,共16分) 22.略
23.(1)略(图形画正确4分)
(2) 等腰直角三角形(写等腰三角形或直角三角形得2分) 五、(共2小题,每小题10分,共20分)
24.(1)5=BD (5分) (2)不能放进去 (1分) 理由:)连结BH ,在BDH Rt ∆中,BH 22DH BD +=
2235+=634<= (4分)
25.(1)
90(5分);(2)
90(5分) 六、(本题13分)
26.(1)25575或 (4分);(只填一个得2分) (2)① 略 (5分)
②作BCE ∆边BC 上的高EH,则EH=
2
1
CE=1,所以 BCE ACE ACBE S S S ∆∆+=四边形
13+= (4分)
注:19-26题其它解(证)法请参照给分.。