八年级下册第一单元测试
- 格式:doc
- 大小:84.50 KB
- 文档页数:2
第一单元综合测试卷时间:120分钟满分:120分一、积累运用。
(28 分)1.下列词语中加点字注音有误的一项是(4分)A.行.辈(háng)冗.杂(rǒng)糜.子(méi)熙.熙然(xī)B.脑畔.(pàn)亢.奋(kàng)争讼.(sòng)霍骠.姚(piào)C.羁.绊(jī)怠.慢(dài)磅礴.(bó)大彻.大悟(chè)D.眼眶.(kuāng)撺.掇(cuān)怅.惘(chàng)马前卒.(zú)2.下列词语书写完全正确的一项是(4分)A.偏辟登时燎原风至锵然B.思慕严峻震憾千呼万唤C.欺侮搏击屹立金戈铁马D.吩咐油馍斡旋张灯结采3.下列句子中加点的词语使用不恰当的一项是(4分)A.动物不似人类有太多感情与文化的羁绊..,它们拥有的是天堂般纯洁的挚爱。
B.近年来,西安发展日新月异,高楼林立,美丽迷人,走在大街小巷,简直让人叹为观止....。
C.这道难题,在老师的反复讲解下,同学们终于大彻大悟....了。
D.正当我听得陶醉的时候,那美妙的乐曲戛然而止....。
4.下列句子没有语病的一项是(4分)A.民俗是民间流传的习俗、风尚,是由民众创造并世代传承的民间文化。
B.中餐的推广使豆腐日益受到各国的欢迎是可以预期的。
C.通过学习《灯笼》一文,使我了解到灯笼对于民族的重要意义。
D.在几千里之外,我已经听到乡亲们正唱着秦腔,那高亢、粗犷、清丽、煽情的旋律在眼前经久地回响。
5.下列说法不正确的一项是(4分)A.《社戏》刻画了一群农家少年朋友的形象,表现了劳动人民淳朴、善良、友爱、无私的好品德,表达了作者对少年时代生活的怀念。
B.《回延安》以“信天游”的形式,写诗人回到阔别十年的延安,看到延安的巨大变化,表达了诗人无限兴奋和喜悦的心情。
C.《安塞腰鼓》一文大量使用了排比和反复的修辞手法,语言气势充沛,节奏鲜明,感情强烈。
第一单元 《中华人民共和国的成立和巩固》测试题一、选择题(每小题只有一个正确答案)1.中华人民共和国建立,中国历史从此揭开了新的篇章.对“新篇章”的理解不正确的是( )A .标志着 中国从此走上社会主义道路B .标志着中国新民主主义革命的胜利C .标志着中国半殖民地半封建时代结束D .标志着中国人民成为国家的主人2.张和解出生于 1951 年 9 月,他父母给他取名最有可能与什么事件有关( )。
A .和平解放北平B .和平解放西藏C .抗美援朝D .解放南京 3.西藏和平解放标志着祖国大陆获得了统一。
今年是西藏和平解放A .50 周年B .55周年C .60周年D .65 周年4.解放初期土地改革与抗美援朝的共同作用是 ( )B .巩固了新生人民政权5.建国初期,为我国的经济建设赢得一个相对稳定的和平环境,提高了中国国际地位的事件是A .《共同纲领》的颁布C .西藏和平解放D .土地改革6.在土地改革中,党和政府之所以把土地分给农民,其根本原因是A .农民无地或少地,生活困苦B .地主土地太多,无法耕种C .农民在革命战争年代有功于革命,分土地事实上是“按功行赏”D .封建剥削的土地制度严重阻碍了农村经济的发展7.中华人民共和国成立后,党和政府采取一系列措施巩固新生的人民政权。
下列事件 中,既 巩固了政权,又促进了经济发展,为国家工业化创造了条件的是( ) A .整顿大城市经济秩序B .土地改革C .抗美援朝D .“一五”计划的实施C .人民政府掌握了国家经济命脉D .改变了中国人民的命运A .消灭了地主阶级B .抗美援朝的胜利8.在新中国成立之初,派海军侵入台湾海峡,公然干涉中国内政的是()A.联合国 B .美国 C .日本 D .英国9.一位美军高级将领在分析一场战争失败的原因时说:“我们是在一个错误的时间,一个错误的地点,和一个错误的对手,打了一场错误的战争!”这场发生在20 世纪50 年代的战争被我们称为A.抗日战争 B .解放战争 C .抗美援朝战争 D .护国战争10 .毛泽东曾兴奋地说:“我为新中国数万万农民获得翻身的机会和国家获得工业化的基本条件而表示高兴,表示庆贺。
八年级语文下册第一单元测试题〔附答案〕【八年级语文下册第一单元测试题〔附答案〕】一、根底知识积累与运用(8小题 ,共35分)1、以下加点字读音无误的一项为哪一项(3分)( )A.绯(fēi)红文绉绉(zhōu) 犀(xī)利匿(nì)名B.锃(chéng)亮畸(jī)形黝(yǒu)黑搓捻(niǎn)C.广袤(máo) 磨蹭(cèng) 繁衍(yǎn) 禁锢(gù)D.迁徙(xǐ) 奥秘(bì) 为难(gà) 期期艾艾(yì)2、以下词语书写完全正确的一项为哪一项(3分)( )A.抑扬顿挫深恶痛疾粗制烂造B.待人接物翻来复去鹤立鸡群C.正襟危坐诚惶诚恐颔首低眉D.无可质疑美不胜收不可明状3、以下加点词语感情色彩不变的一项为哪一项(3分)( )A.“清国留学生〞除下帽来 ,油光可鉴 ,还有将脖子扭几扭 ,实在标致极了。
B .问问精通时事的人 ,答道,“那是在学跳舞。
〞C.世间最下流的事莫如把生气的脸摆给旁人看。
D .我那时真是聪明过分 ,总觉得他说话不大漂亮。
4、以下句子中 ,没有语病的一项为哪一项(3分) ( )A. 能否根治网吧“顽症〞 ,是保证青少年健康成长的条件之一。
B.每一个有志青年都要提高和充实自己的业务能力和思想修养。
C.信息化已成为衡量一个国家现代化水平和综合国力的重要任务。
D.国家、社会、学校和家庭要依法保障适龄儿童接受义务教育的权利。
5、以下标语 ,用语得体的一项为哪一项(3分)( )A.抢劫警车是违法的!(公路旁)B.请讲普通话。
(学校)C.禁盗电缆 ,万伏高压 ,一触即死 ,不死法办!(高压电线杆上)D.不准停车 ,违者放气。
(楼梯口)6、在?献给母亲的歌?这一综合性学习中 ,你对母亲有什么新的认识?请答复以下问题。
(4分)①写出两句赞颂母爱的古诗句及其。
②用简要语言写出两个孝敬父母的佳话:7、名著考查:(6分)1)?海底两万里?是凡尔纳的三部曲的第二部 ,第一部是。
部编人教版八年级语文下册第一单元单元测试题及答案部编人教版八年级下册第一单元检测(时间:90分钟满分:100分)一、积累与运用(11分)1.下列各项中加点的字注音无误的一项是()(2分)A.凫水(fú)潺潺(chán)磅礴(páng)脑畔(pàn)B.归省(shěng)瞳仁(tóng)脸颊(jiá)恣意(zì)C.怠慢(dài)羁绊(jī)糜子(mí)挑衅(xùn)D.撺掇(chuān)晦暗(huì)挑剔(ti)斡旋(wò)2.下列各项中没有错别字的一项是()(2分)A.弥散静穆惊心动魄穿红戴绿B.皎洁恬净叹为观止荣华富贵C.纠葛褪色戛然而止故名思义D.思幕行辈一马当先大彻大悟3.下列各句中加点成语使用无误的一句是()(2分)A.此次南太平洋台风登陆,福建省首当其冲。
B.进入七月份,温度持续升高,天气真是炙手可热啊。
C.老李参加聚会迟到了整整两个小时,他的老朋友们觉得相见恨晚。
D.王老汉又给自己的养牛场购进了300头牛,种类齐全,真可谓汗牛充栋。
4.下列句子中没有语病的一句是()(2分)A.只要经过不懈的努力,才会收获精彩的人生。
B.济南交警董相勇捐肝救妻,谱写了夫妻二人在困境中相濡以沫。
C.考场上沉着、镇静,是能否正常发挥水平的关键。
D.一本好书可以给你带来许多教益,甚至可以影响你的一生。
5.仿照画线句再补写两个句子,使之构成语意连贯的排比句。
(3分)啊,雨,我爱恋的雨啊,你一年四季常在我的眼前流动,你给我的生命带来活力,,。
二、名著阅读(5分)6.(2017.江苏淮安中考)阅读下面文字,回答相关问题。
大家认为这种改革不但对于身体健康有益,同时,对表达思想更加简练也有好处。
因为大家都很清楚,我们说出一个词来多多少少都会侵蚀肺部,结果也就缩短了我们的寿命。
……这种发明还有一大好处:它可以作为一切文明国家都可以通晓的共同语言,因为各国的货物、器具大体相同或者类似,所以它们的用途就很容易了解。
UNIT 1 Will people have robots?检测题(时间:60分钟;满分:100分)一、听力部分(满分20分)Ⅰ. 听句子,选择与你所听到的句子内容相符的图画。
每个句子读一遍。
(每小题1分,满分5分)A B C DE1. _______2. _______3. _________4. _________5.________II.听句子,选择你所听到句子的最佳答语。
每个句子读一遍。
(每小题1分,满分5分)6. A. Because I had to go to school.B. Did you stay at home,tooC. Because my mother was ill.7. A. They were delicious. B. They were friendly. C. Theyare fine.8. A. Yes,I did. B. No,you didn’t. C. Yes,I do.9. A. It’s fifty yuan. B. It’s 100 ,000 yuan. C. It’s not cheap.10.A.Yes,I’d like some apples.B. Yes,I can.C. No,I don’t need your help.III. 听下面五组对话,选择正确答案。
每组对话读两遍。
(每小题1分,满分5分)11. What is the weather be like tomorrowA. It will be sunny.B. It will be windy.C. It will be rainy.12. How does the man go to workA. By bike.B. On foot.C. By car.13. What does Tony want to be when he grows upA. A worker.B. A teacher.C. A reporter.14. What’s Jack doingA. He is playing with snow.B. He is walking in the wind.C. He is running in the rain.15. What will the family buyA. A telephone.B. A television.C. A computer.Ⅳ. 听短文, 选择最佳答案。
人教部编版八年级下册语文第一单元测试卷(时间:150分钟满分:120分)一、语言知识及其运用(每小题2分,共10分)1.下列词语的字形和加点字注音全部正确的一项是( )(2分)A.归省.(xǐnɡ) 行辈幽悄.寂静(qiāo) 积极涌跃B.家眷.(juàn) 亢奋一马当.先(dānɡ) 惊心动魄C.助兴.(xīnɡ) 撺掇戛.然而止(jiá) 兴高彩烈D.纠葛.(ɡě) 吁气情不自禁.(jīn) 大切大悟2.下列各句中加点的成语使用正确的一项是( )(2分)A.对待学习,我们应该有一丝不苟的态度,对任何细小的问题都要吹毛求疵....。
B.不法分子利用微博、微信等平台实施诈骗,手段不断翻新,令人叹为观止....。
C.教学中,老师应该突出学生的主体地位,对学生提出的问题要洗耳恭听....。
D.当优美的旋律戛然而止....时,整个端午节晚会现场出奇地寂静,人们沉浸在无尽的回味中。
3.下列句子没有语病的一项是( )(2分)A.近几年,“打虎上无禁区,拍蝇下无死角”的反腐举措,极大地提高了老百姓对未来的期许,增强了老百姓对国家的自信。
B.通过学校教育弘扬传统文化,对于奠定和谐社会基础,对于中华民族的伟大复兴具有不可替代的作用。
C.阳光小学“打造阳光课堂,实施阳光教育”的系列活动深得全社会的肯定与好评。
D.思维对于作文审题来说无比重要,运用正确的思维方法审清材料是能否打开作文视野之窗很关键的一步。
4.下列句子组成语段顺序排列正确的一项是( )(2分)①聪明的犹太人有一句名言:借别人的鞋子比打赤脚跑得快。
②因为他们懂得:一个人的能力是有限的,仅靠自己的单打独斗,也许自食其力不成问题,但若想获得突破性的发展,恐怕就力不从心了。
③怎样才能利用有涯的人生岁月,在无疆的事业中纵横驰骋成为英雄呢?④他们在世界多个领域一直都是领跑者,占尽了先机和风流。
⑤人生有涯,事业无疆。
⑥所以,唯有善借者,才能从平凡走向卓越,从贫穷走向富贵,从卑微走向伟大。
Unit1What’s the matter?一.单项选择。
(每小题 1 分,共15 分)()1.As people’s life is getting better and better, so how to is becoming more and more important.A. play sportsB. keep healthyC. have a coldD. drink coffee ()2.You are tired, so you go to the party.A.shallaren’tB.needC. shouldn’tD.()3.The little girl has a fever. The doctor is .A. taking her temperature C. getting an X-rayB. putting some medicine on it D. putting a bandage on it()4.—I’d like a cup of tea nothing in it.—OK. What else?A. haveB. hasC. withD. and ()5.—I have a toothache.—I think you should .A. lie down and restB. drink hot tea with honeyC. listen to soft musicD. go to see a dentist()6.—What was the matter with you?—.A.I passed my math exam C.I broke my bikeB.I found my library book D.He lost his dictionary()7.You shouldn’t eat food, or you’ll be fat.A. too much; much too C. much too; too m uchB.too much; too much D. much too; much too()8.Tony is thinking about a new bike.A. buy B .to buy C. buys D.buying()9.Alice is interested in the Internet.A. useB. using C .to use es()10. her surprise, she felt better after having a rest.A .In B. On C. To D .At()11.Linda has trouble Chinese history.A. learningB. learnC. to learnD. learned ()12.Ben is used to to school. He used to the bus to school last year.A. walking;takingB. walk; takeC. walking;takeD. walk;taking()13.Where will you ?A. get outB. get off C .get out of D. get of ()14.His money . He asked his mother for some.A. ran out ofB. is run outC. was run outD. ran out ()15.If you keep on , you’ll succeed.A. tryB. to tryC. tryingD. tries二.单元重难点过关。
Unit 1 Where did you go on vacation?综合能力演练I. 单项选择。
1. Which team _________ the game yesterday?A. tookB. wantedC. visitedD. won2. I went out and ________ in the river.A. swimB. swamC. swimmingD. to swim3. The music sounds _______, I like it very much.A. goodB. wellC. badD. beautifully4. I ________ late __________ class yesterday morning.A. was,forB. was,toC. am,forD. am,to5. What _______ he do on his last school trip?A. doesB. didC. isD. was6. We _____ any sharks on my last school trip.A. sawB. didn’t sawC. didn’t seeD. see7. —How many students are there in the classroom?—__________. They are all on the playground.A. No oneB. NoneC. NobodyD. Everyone8. The film “Kung Fu Panda” is _______ interesting _______ I would like to see it again.A. such; thatB. too; toC. as; asD. so; that9. —When did you _______ table tennis?—Three years ago. Later, I studied in Peking University.A. stop to playB. stop playingC. start to playD. start play10. The boy was born _______ the 3rd of July, 1989.A. inB. onC. atD. to11. We didn’t go out to play _______ the bad weather.A. becauseB. because ofC. metD. of12. She is ______ old to walk so long.A. tooB. soC. veryD. such13. Around the world, more and more people are _________ dangerous sports activities, because life in modern societies has become safe and boring.A. taking outB. taking offC. taking part inD. taking care of14. The musician wrote three _______ last year.A. pieces of musicB. pieces of musicsC. piece of musicsD. piece of music15. She is famous _______ a violinist.A. ofB. forC. asD. in[真题链接]1.Look! Sonia looks worried. There must be ________ wrong with her.A. nothingB. somethingC. anythingD. everything2.-________ do you go to the supermarket, Amy?-Once a week.A. How manyB. How muchC. How farD. How often3.-Have you heard the song Stay Here Forever?-Yes. It sounds _______.A. wellB. loudlyC. sweetD. beautifullyII. 完形填空。
八年级语文(下册)第一单元测试题积累·运用(14分)1、选出加点字注音全对的一项()(2分)A、烂熳.(màn)匿.名(ruò)庶.祖母(shù)B、芦荟.(huì)长髯.(rán)眼翳.病(yì)C、不逊.(sùn)禁锢.(gù)文绉.绉(zhōu)D、诘.责(jié)锃.亮(chéng)颔.首(hàn)2、下列作品、作家及内容搭配有误的一项是()(2分)A、《藤野先生》-鲁迅-藤野先生B、《我的第一本书》-胡适-父亲C、《再塑生命》-海伦·凯勒-莎莉文老师D、《列夫·托尔斯泰》-茨威格-列夫·托尔斯泰3、找出下列句子中有语病的一项()。
A、同志们亲手纺的线织的布做成衣服,穿着格外舒适,也格外爱惜。
B、回到故乡,我又看到那阔别多年的老师,那熟悉的可爱的乡音和那爽朗的笑声。
C、实践证明,一个人知识的多寡,成就的大小,关键在于勤的程度。
D、那时正值三月,春天几乎从山沟里溢出来了。
2、解析B.B句的错误属动宾搭配不当,谓语“看到”不能与“乡音”和“笑声”搭配,修改办法是可增加一个谓语“听到”。
综合性学习活动(6分)母爱就象一首田园诗,幽远纯净,和雅清淡;母爱就象一首深情的歌,婉转悠扬,轻吟浅唱。
母爱就是儿女成长的殷殷期盼,母爱就是儿女病榻前的关切焦灼,母爱就是漂泊天涯的缕缕思念,母爱就是一生相伴的盈盈笑语。
班里要开展《感受母爱》的综合性学习活动,语文老师希望每一位同学都用心做好以下几件事:(1)全班每一位同学收集一篇反映母爱的诗词或散文,并编辑成书。
请你给本书拟定一个书名。
(2分)书名:《》(2)请写出一句与母亲有关的名言或俗语。
(2分)(3)3.8妇女节刚刚过去,或许有的同学还未来得及表达对母亲的爱,所幸还有机会。
五月的第二个星期天就是母亲节,请你设计一句手机短信,祝愿天下所有的母亲节日快乐。
人教版八年级下册英语第一单元题目及答案智慧,不是知识,不是经验,不是思辨,而是超越自我中心的态度。
船过水无痕,鸟飞不留影,成败得失都不会引起心情的波动,那就是自在解脱的大智慧。
下面给大家分享一些关于人教版英语八年级下册Unit 1 测试有答案,希望对大家有所帮助。
人教版英语八年级下册Unit 1 测试(限时:60分钟满分:100分)一、单项选择(每小题1. 5分,共15分)1.—Does your sister have _______ _ fever?—Yes, she does. I thinkshe should go to________ hospital.A. an;/B. a;theC. /;aD. the;an2.If we just think about________,the boat of friendshipwi ll be overturned(倾覆)anytime.A. myselfB.himselfC. yourselfD.ourselves3.—I failed my driving test again.—Don't ________. Keeptrying and you'll pass it.A. put upB.give upC. tidy upD. look up4.I took the subway and ________at the downtown station.A. got throughB.got overC. got onD. got off5.________ our surprise, Larry came here earliest today.A. ToB. WithC. WithoutD. In6.You look too tired. You ________ rest and ________work too hard.A. should; shouldB. shouldn't; shouldn'tC. shouldn't; shouldD. should; shouldn't7.Lucy is used ________ a walk after dinner.A. to takeB. takingC.to takingD. take8.Did you agree ________ a party for him?A. havingB. to haveC. haveD. had9.Please let me tell you again ________ you won't forget.A. as long asB.ifC. so thatD. because10.— My c ousin has a sore throat.—She should ________.A. drink water withhoneyB. see a dentistC. take a showerD. get an X? ray二、完形填空(每小题2分,共20分)A tone ?deaf(不能辨别音高的)teenager has surprised his familyby suddenly being able to play music after suffering a concussion(脑震荡).Gordon,a high school student,now can play 13instruments—______11 he has never learned music.As a smal l child,he loved sports,dreamed of playing lacrosse(长曲棍球)as a career,and had no______12 in music.“He really had nomusical______13,”his mother told th e reporter. “When he playedlacrosse with a local team in Grade Six,he______14backwards and knocked the back of his head______15 the ground. ”“I remember______16 andthen feeling dazed (神志不清的),”he told the reporter. “I didn'treally realize something______17 had happened. ”The doctors told him hecould return to the______18. He did so,butunluckily he went on to suffer______19 couple of hard hits on the head,which sent him to the hospital again.Afterthat,the doctors told him hecouldn't play sports any more,but there was one goodside effect:his newly found______20.“Now I can play manyinstruments,such as piano,guitar and violin. Music is thething that gets me up in the morning,”hesaid.11.A. so B. and C. because D. though12.A. interest B. interested C. interesting D. interestedly13.A. problem B. difficulty C. instrument D.talent14.A. falls B. felt C. fell D. was falling15.A. above B. below C. along D. against16.A. getting up B. giving up C. to get up D. to give up17.A. good B. bad C. wonderful D. boring18.A. classroom B. hospital C. concert D. field19.A. another B. other C. the other D. others20.A. hobby B. illness C. habit D. skill三、阅读理解 (每小题2分,共10分)On Sunday it was sunny. More than ten people stood on theairport,waiting for thechallenge for skydiving(特技跳伞运动). Suddenly,with the help of a guide dog,a blind man was coming w ith aparachute(降落伞n. ;跳伞v. ) on his back.“Do you also come forthe parachute training?” someone asked. “Yes!” the blind man answered in a loudvoice. All the people looked at him in surprise. “I know. Do you think how ablind man can parachute?”the blind man said.“Yes,how can you parachute?” Seeing the blind man was so happy,they asked quickly.“It's not difficult.I'll parachute like you. I am a blind man,butI c an hear!When I hear the orderfor skydiving,I'll carry my guide dogto follow you one by one. The coach (教练)says,counting to 5 from themoment I jump down,I can open theparachute. And I know when to fall to the ground is the most dangerous momentin skydiving. But it's very easy for me. When my guide dog is afraid intocrying loudly and the rope in my hand becomes light,I'll be ready for falling to theground. ” said the blind man quickly.After the challenge,the coach told everyone,“In this training,Robert gets the highest scoring. ”“Who's Robert?” They askedsimultaneously.“He!” the coach said,pointing at the young blind man.21.What did the blind man come to the airport to do?A. To watch theparachute training.B. To trainhis guide dog.C. To join in theparachute training.D. To gotravelling by plane.22.How did all the people feel when the blind man wanted to parachute with them?A. Happy.B. Surprised.C. Excited.D. Sad.23.When will the man be ready for falling to the ground?A. When he hears theorder for skydiving.B. When he carries hisguide dog to follow one by one.C. When the coach sayshe can open the parachute.D. When his guide dog isafraid into crying loudly and the rope in his hand becomes light.24.What does the word “simultaneously” mean in Chinese?A. 大声喧哗地B. 难以置信地C. 不可否认地D.不约而同地25.According to the passage,which of the followingis NOT TRUE?A. The coach knew Robertwas the best trainer before the challenge.B. The other peopledidn't believe Robert could parachute at first.C. The blind man was areal man with great courage.D. It's unbelievablethat Robert did the best of all trainers.四、词汇运用(每小题2分,共20分)A. 根据句意及首字母提示填写单词26. Zhang Lin's grandmother was s________, so he took her to the hospital.27. Jane's head feels kind of hot. I thi nk shehas a f __________.28. I h ______my back playing squash.29. —What 's the t ________with you?—Ican't sleep well all night.30. There were too many p ______on the bus, so Icouldn't get on it.B. 用括号内所给单词的适当形式填空31. We need two more new ________(knife).32. Mrs. Brown________ (lie) in bed for a few minutes,and then she felt better.33. After his parents'________(die), the young manmoved to another city.34. You should learn to make a________(decide) byyourself. [来源:]35. At weekends,mysister often learns English by________(she).五、补全对话(每小题2分,共10分)从方框内选择合适的句子补全对话(有两项多余)A:Good afternoon, young man. ______36B:Good afternoon, doctor. I don'tfeel well. I have a headache.A:Do you have a fever?B:______37My mother took mytemperature just now. She said it was OK.A:Oh, I think you may have a cold.B:______38A:You should drink much water.B:OK. ______39A:Well, you should go to bed earlyand have a good rest.B:______40A:No. It's nothing serious, so youcan go to school.B:Thank you very much.A:You're welcome.A. What should I do?B. I hope you will get better soon.C.Should I stay in bed?D. What's the matter?E.Are you feeling well now?F. No, I don't.G.What else?六、书面表达(25 分)你的朋友Jack由于长时间在手机(mobile phone)上玩游戏,现在头痛、眼睛痛、背痛,并且睡不好觉。
八年级数学下册单元检测题
第一章《三角形的证明》
班级座号姓名成绩
一、填空题(每题4分,共36分)
1.在△ABC中,AB=AC,∠A=44°,则∠B=度.
2.等腰三角形的一个角为50°,则顶角是度.
3.如图,AB=AD,只需添加一个条件,就可以判定△ABC≌△ADE.
4.已知等腰三角形两条边的长分别是3和6,则它的周长等于.
5.命题“多边形是四边形”的逆命题是.
6.如图,在△ABC中,∠C=90°,D为BC上的一点,且DA=DB,DC=AC.则∠B=度.
(第3题图) (第6题图) (第9题图)
7.在△ABC中,∠A:∠B:∠C=1:2:3,AB=6cm,则BC=cm.
8.等边△ABC的周长为12cm,则它的面积为cm2.
9.如图,ED为△ABC的AC边的垂直平分线,且AB=5,△BCE的周长为8,则BC=.
二、选择题(每题3分,共21分)
11.下列条件中能判定△ABC≌△DEF的是( )
A.AB=DE,BC=EF,∠A=∠D B.∠A=∠D,∠B=∠E,∠C=∠F
C.AC=DF,∠B=∠F,AB=DE D.∠B=∠E,∠C=∠F,AC=DF
12.下列命题中正确的是( )
A.有两条边相等的两个等腰三角形全等B.两腰对应相等的两个等腰三角形全等
C.两角对应相等的两个等腰三角形全等D.一边对应相等的两个等边三角形全等
13.对“等角对等边”这句话的理解,正确的是( )
A.只要两个角相等,那么它们所对的边也相等
B.在两个三角形中,如果有两个角相等,那么它们所对的边也相等
C.在一个三角形中,如果有两个角相等,那么它们所对的边也相等
D.以上说法都是错误的
14.以下各组数为三角形的三条边长,其中能构成直角三角形的是( )
A.2,3,4 B.4,5,6 C.1,2,3D.2,2,4
15.如图,△ABC与△BDE都是等边三角形,AB<BD.若△ABC不动,将△BDC绕B点旋
转,则在旋转过程中,AE与CD的大小关系为( )
A.AE=CD B.AE>CD C AE<CD D.无法确定
(第15题图)(第16题图)
16.如图,△ABC中,AC=BC,直线l经过点C,则( )
A.l垂直AB B.l平分AB C.l垂直平分AB D.不能确定
17.三角形中,若一个角等于其他两个角的差,则这个三角形是( )
A.钝角三角形B.直角三角形C.锐角三角形D.等腰三角形
三、解答题(共43分)
18.(6分)如图,已知线段a,利用尺规求作以a为底、以2a为高的等腰三角形。
(保
留作图痕迹)
19. (6分)已知:如图,点D是△ABC内一点,AB=AC,∠1=∠2.求证:AD平分∠BAC.
20.(7分)已知:如图,△ABC和△CDE都是等边三角形,点D在BC边上.求证:AD=BE.
21.(8分)如图,在△ABC中,∠ACB=90°,BC=15,AC=20,CD是高.(1)求AB的长;
(2)求△ABC的面积;(3)求CD的长.
22.(8分)求证:等腰三角形两腰上的中线的交点到底边两个端点的距离相等.23.(8分)已知:如图,在Rt△ABC中,∠C=90°,沿过B点的一条直线BE折叠这个三角形,使C点与AB边上的一点D重合.
(1)当∠A满足什么条件时,点D恰为AB的中点?写出一个你
认为适当的条件,并利用此条件证明D为AB的中点;
(2)在(1)的条件下,若DE=1,求△ABC的面积.。