第一篇:湖北省浠水县英才学校、兰溪中学2013-2014学年八年级数学上学期第三次月考试题
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※※※※※※ 浠水县英才学校兰溪中学2013年秋季第三次月考八年级 数学试题 满分:120分时间:120分钟 同学们,你们好!今天是展示你聪明才智的时候了。只要你仔细审题、多思多
想、沉着应答,把平常的水平发挥出来,你就会有出色的表现。放松一点,相信自己※※※※※※
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一、选择题(30分)
1、下列多项式中,可以提取公因式的是()A、x2y2B、x2xC、x2yD、x22xyy22、化简x3(x)3的结果是()A、x6B、x6C、x5D、x5
3、下列两个多项式相乘,不能用平方差公式的是()A、(2a3b)(2a3b)B、(2a3b)(2a3b)C、(2a3b)(2a3b)D、(2a3b)(2a3b)
4、下列运算正确的是()A、(ab)2a2b22aB、(ab)2a2b2C、(x3)(x2)x26D、(mn)(mn)m2n2
5、下列多项式中,没有公因式的是()A、axy和(x+y)B、32ab和xb C、3bxy和 2xyD、3a3b和6ba
6、若9x2mxy16y2是完全平方式,则m=()A、12B、24C、±12D、±24
7、下列四个多项式是完全平方式的是()A、x2xyy2B、x22xyy2 C、4m22mn4n2D、1a2abb24
8、已知a、b是△ABC的的两边,且a2+b2=2ab,则△ABC的形状是()A、等腰三角形 B、等边三角形C、锐角三角形D、不确定 9.在△ABC中,AB=AC,D是BC的中点,则下列结论中不正确的是()A.∠B=∠CB.AD平分∠BACC.AB=2BDD.AD⊥BC10.在平面直角坐标系中,点A(-3,-2)关于y轴的对称点的坐标是()1
A.(-2,3)B.(3,-2)C.(2,-3)D.(-3,-2)
二、填空题(30分)
11、计算:(-x3y)2=
12、分解因式: x2+y2-2xy=
13、计算:(-8)2004(-0.125)2003=
14、若A=3x-2,B=1-2x,C=-5x,则A·B+A·C=.15、xn=5,yn=3,则(xy)2n=
16、已知x+y=1,那么121
2xxy2y2的值为_______.17.已知等腰三角形两边的长分别是9cm和4cm,则它的周长为___________。
18、若a0且ax2,ay3,则axy的值为______
19.已知:xy21,xy217,则x2y2=20、16.若a-b=1,a b=-2,则(a+1)(b-1)=.三、计算(12分)
21、(2a3b)(2a3b)
22、3a2-2a(5a-4b)-b(3a-b)
23、4(x+1)2-(2x+5)(2x-5)
四、分解因式(16分)
24、(m+1)(m-1)-(1-m)
22326、6xy-9xy-y25、a2abbc222
27、(2a-b)+8ab
2五、解答下列问题(6+6+6+8+6=32分)
28、已知 mn8,mn15,求m2mnn2的值
29、先化简,再求值:(a2b2ab2b3)b(ab)(ab)
其中a12,b1.
322230.已知a、b、c是三角形△ABC的三条边且满足a+2b+c-2b(a+c)=0,试判断此三角形的形状.
A
31.如图,点D、E在△ABC的边BC上,AB=AC,AD=AE。
求证:BD=CE。(8分)
32、阅读题:(6分)
2分解因式x+2x-3
2解:原式=x+2x+1-1-3
2=(x+2x+1)-4
2=(x+1)-4=(x+1+2)(x+1-2)
=(x+3)(x-1)此方法是抓住二次项和一次项的特点,然后加一项,使这三项为完全平方式,我们称这种方法为配方法。此题为用配方法分解因式。
请体会配方法的特点,然后用配方法解决下列问题:
2在实数范围内分解因式:4a+4a-1
第二篇:湖北省浠水县英才学校、兰溪中学2014届九年级政治上学期第三次月考试题(共)
浠水县英才学校兰溪中学2013年秋季第三次月考九年级
思品试题
第Ⅰ卷选择题部分
1.中华人民共和国第十二届全国人民代表大会第一次会议于2013年3月5日在北京召开。会议审议通过了政府工作报告等6份报告,选举产生了新一届国家领导人,审议通过了国务院机构改革和职能转变方案。这说明了
①人民代表大会是我国的根本政治制度;②全国人大代表依照宪法和法律行使权利,讨论和决定国家重大事务;③我国实行人民代表大会制度,由人民统一行使国家权力;④在我国,人民是国家主人,能够直接行使国家权利。
A.①②B.③④C.②③D.①②③④
2.漫画《敞开》说明
①社会主义民主的本质是人民当家作主,国家的一切权力属于人民;②全体
人民直接享有管理国家和社会事务的权利 ;③全国人民代表大会和地方各级
人民代表大会是人民行使当家作主权力的机关;④我国法律是广大人民意志
和利益的体现
A.①②④B.①③④C.②③④D.①②③④
3.2013年3月15日,十二届全国人大一次会议在人民大会堂举行第五次全
体会议,李克强当选国务院总理。这说明全国人大享有
A.决定权B.监督权C.任免权D.立法权
4.“一切法律、行政法规和地方性法规都不得与宪法相抵触。”这表明我国宪法
A.制定和修改程序比普通法律更为严格B.是普通法律的总和
C.与普通法律是子法和母法的关系
D.在国家法律体系中,具有最高的法律效力和法律地位5.10多年来,西部地区人民生活水平明显提高,城乡居民的收入分别是10年前的2.7倍和2.3倍;10年前,西部地区有5700万贫困人口,现在下降到2370万。这一切都离不开中国共产党的领导和西部地区各族人民的努力,也离不开: ①坚持民族区域自治制度;②坚持共同富裕的根本原则;③坚持“和平统一、一国两制”的基本方针;④全国其他地区的大力援助。
A.①②③B.②③④C.①③④D.①②④
6.对“中国式剩宴”说“不”的理由是
①浪费可耻②产生大量垃圾 ③耗费宝贵资源④共同富裕还没有实现
A.①④B.②③
C.①②④D.①②③
7.就业是民生之本。面对“十二五”期间严峻的就业形势,国家将加大
对非公有制企业的支持力度。对国家这种做法的原因分析不正确的是
A.非公有制经济是我国社会主义市场经济的重要组成部分
B.非公有制经济有利于生产力的发展
C.促进非公有制经济发展适合我国国情
D.非公有制经济是我国社会主义经济制度的基础
8.下列观点,理解错误的是
A.四项基本原则是我们国家生存发展的政治基石B.混合所有制经济都属于非公有制经济
C.源远流长、博大精深是中华文化的基本特点D.社会主义核心价值体系是兴国之魂
9.作为中央电视台倾力打造的一个精神品牌栏目,“感动中国”人物评选活动已连续举办了多年举办这一活动
①是加强社会主义精神文明建设的重要举措;②有利于弘扬和培育伟大的民族精神;③是发展社会主义先进文化的需要;④是先进文化的基础工程。
A.①②③B.②③④C.①③④D.①②③④
10.2013年4月11日,“书香江城——分享阅读、放飞梦想”主题读书活动在武汉市民之家活动。该活动旨在让爱读书、勤读书、读好书、善读书成为武汉市民的一种生活,一种习惯,一种追求。建设“书香江城”:
A.有利于丰富武汉人民文化生活,推动社会主义精神文明建设
B.目的在于发展武汉教育事业,促进教育公平的实现
C.是为了增强市民民主意识,推进武汉政治文明建设
D.表明武汉坚持以文化建设为中心,致力于增强城市综合实力
第Ⅱ卷非选择题部分(25分)
11.【弘扬宪法精神推进依法治国】(9分)
材料一:2012年12月4日是我国第12个“全国法制宣传日”,其宣传主题为“弘扬宪法精神,服务科学发展”。
材料二:2012年12月4日,习近平同志在纪念宪法实施30周年大会上讲话强调,宪法与国家前途、人民命运息息相关。宪法是国家的根本大法,是治国安邦的总章程,具有最高的法律地位。我们要更加自觉地恪守宪法原则、弘扬宪法精神、履行宪法使命。
结合上述材料,思考回答下列问题:
(1)“全国法制宣传日”为什么要突出宣传“宪法”?(至少答四点。4分)
(2)上述材料表明我国实行怎样的基本方略?这一方略的基本要求有哪些?(3分)
(3)这一方略对我们公民提出什么要求?(2分)
12.【关心经济生活】(8分)
2012年小明家好事连连:爷爷依法经营自己开办的服装厂年终收益20万,如实上缴了税款,受到了相关部门表彰。在某国企担任技术研发主任的爸爸,因研发的一种具有自主知识产权的产品销往国外,为企业创造了巨额利润,获得了10万的“特殊贡献奖”。妈妈在附近开了一家饭馆,生意火红。
请回答下列问题:
⑴小明的爷爷、妈妈分别就职的是何种性质的所有制经济?我国为什么要发展爷爷、妈妈所就职的所有制经济?国家对这类经济形式采取什么政策?(4分)
⑵从他们获得收入方式看,我国实行了怎样的分配制度?(2分)
⑶在分配中要注意哪些问题?(2分)
13.【参与文化活动】(8分)近年来,中央电视台《感动中国》栏目向全国观众推出了几十位感动中国人物,他们身上都有一种让观众心灵感到震撼的精神力量,《感动中国》因此也被媒体誉为“中国人的精神史诗”。
(1)《感动中国》评选活动属于什么活动?开展这一活动有何作用?(3分)
(2)《感动中国》评选活动属于社会主义精神文明中哪方面的内容?它在先进文化建设中的地位怎样的?(2分)
(3)在当代中国,发展先进文化,就是建设社会主义精神文明。加强社会主义精神文明建设的根本任务是什么?(3分)
第三篇:湖北省浠水县英才学校、兰溪中学2013-2014学年八年级英语上学期第一次月考试题
湖北省浠水县英才学校、兰溪中学2013-2014学年八年级英语上学期第一
次月考试题(无答案)人教新目标版
满分:120分时间:120分钟
一、单项选择(50分)
()1.The boys are having great fun ______ in the waves.A.playB.to playC.playedD.playing
()
2、Thank you very much for _________us so well.A.teachB.teachingC.teachesD.taught
()3.How’s the weather in Shanghai ?_________.A.It raining.B.It is rainC.It is rainy.D.It rainy.()4.—When _______ a sports meeting?---Last Monday.A.had youB.do you haveC.did you haveD.will you have
()
5、How is it going? ______.A.It's sunny.B.It's hot.C.It's right.D.It's pretty good
()6.“You are a very beautiful girl.”“________”
A.No, I’m not.B.Sorry, I don’t.C.Thank you.D.Yes, I do.()7.He didn’t have_____ money for a taxi, ______ he walked back tothe hotel.A.any, andB.much, because C.any, soD.some, so
()8.On Sunday morning I helped my mother ____the cooking.A.doB.to doingC.doesD.doing
()9.---__________ ?---He did some reading at home.A.What does your father do yesterday evening
B.What does your brother do in the school
C.What did your brother do on the weekend
D.Where did your brother go last Sunday
()10.I cleaned my classroom ____________.A.with three hoursB.three hours agoC.in three hoursD.three hours before
()11.Did you go shopping yesterday?_________.A Yes, I doB Yes, I didC Yes, I amD No, I couldn’t
()12._______you________ soccer on the weekend?
A.Did, playedB.Do, playedC.Did, playD.Did, plaied()13.---What ______ they doing?---They _____studying.A.are, areB.is, isC.was, areD.are, do()14.My friend is muchthan me.A.smarterB.smartC.moresmarter D.more smart()15.My parentsquite friendly.A.both areB.are bothC.are allD.all are()16.I like making friends,I am a little quiet.A.butB.althoughC.soD.however()17.Holly likes to do the same things.A.likes meB.as meC.as I doD.B and C
()18.My sister is ______ more outgoing than me.A.moreB.mostC.a littleD.little
()19.Li Ming and Lin Tao ______ black eyes.A.hasB.have bothC.both haveD.both has
()20.I ______ a primary school student two years ago.A.amB.wasC.beD.were
()21.He likes to do the same things _______ me.A.inB.onC.likeD.as
()22.An elephant is ______ than a tiger.(德州2008)
A.heavyB.very heavyC.the heaviestD.heavier
()23.He is not as ______ as his younger brother.(临沂2008)
A.strongB.strongerC.strongestD.the strongest
()24.Usually Xiao Li spends ______ time doing homework than Xiao Chen does.(江苏
2008)
A.littleB.lessC.fewD.fewer
()25.Which do you like ______,apples or oranges?(徐州2007)
A.bestB.goodC.wellD.better
()26.—Is your brother good at _________basketball?—Yes, he is.A.to playB.playsC.playedD.playing
()27.We all like Tina,so she is very ________in school
A.prettyB.beautifulC.funnyD.popular
()28.Mary likes to have friends who are different ______her.A.atB.ofC.fromD.for
()29.Sandy is ________ at playing soccer than Simon.A.betterB.goodC.wellD.best
()30.He plays baseball ______.He is ______ at sports
A.well, wellB.good, goodC.well, goodD.good, well
()31.______ they look different, they have some similarities.A.ButB.AsC.AlthoughD.When
()32.He was too tired,so he ______.A.stopped restingB.stopped to restC.stopped to workD.stops working
()33.—How do you feel today, Ted?
—I feel ______ better today, thank you.A.moreB.littleC.a fewD.a little
()34.Tom is ______ than Jim.(黄石2006)
A.shortB.very shorterC.shortestD.a little shorter
()35.You must drive ______ next time.(浙江2008)
A.more carefully B.carefullyC.carefulD.more careful
()36.Betty didn’t come to school yesterday ______ she was ill.(济宁2008)
A.BecauseB.ThoughC.WhenD.As()37.What did you doFriday?
A.atB.onC.inD.to
()38.—Did you enjoyon your vacation?
—Yes, I enjoyedvery much.A.yourselves, ourselvesB.yourself, myself
C.yourselves, myselfD.yourself, ourselves
()39.—Where did they go on vacation?
—.A.She stays at home.B.She visited her aunt.C.They went to New York City.D.She wants to go to Hainan.()40.—How often does Kate go hiking?
—.A.I guess she’s OK.B.About an hour.C.Once the week.D.Twice a week.()41.There are 50 students in our class.75% students like going hiking.What does
“75%” mean?
A.None of the students.B.All the students.C.Most of the students.D.Some of the students.()42.—do you have a class meeting?
—Once a week.A.How muchB.How oftenC.What timeD.How long()43.Isee her in the supermarket.A.sometimeB.some timeC.sometimesD.some times
()44.—did you watch TV?—About two hours.A.How farB.How oftenC.How soonD.How long()45.He is a good student.Helate for school.A.isn’t neverB.is oftenC.is alwaysD.is hardly ever
()46.—______ is “Lucky 52” shown on CCTV-2?—Every week.(2006年,黄冈)
A.How oftenB.How longC.How soonD.How many times
()47.My mother told me ________ you anything.A.tell notB.not tellC.to not tellD.not to tell()48.Would you liketo eat?
A.something healthyB.anything healthy
C.something healthD.healthy something()49.Doing morning exercisesyour health.A.is bad toB.is good forC.is bad forD.is good to
()50.You are so busy.What do you want me ________ for you?(2006年,重庆)
A.doB.doneC.to doD.doing
二、完形填空(10分)
Yesterday was Saturday.Mr.King __51__ his family to the People’s Park in the __52__.They got up early and had __53__ quickly.After that they went to the park __54__ their car.It was nine o’clock when they got there.There were many __55 in the park.Lily __56__ the hill in the middle of the park.Lucy flew a kite __57__ some other children.Mr.King and his wife were tired after five days’ __58_.They sat under a tree and had a __59__.The King family had a __60__ time there.()51.A.toldB.tookC.calledD.brought
()52.A.morningB.afternoonC.eveningD.night
()53.A.mealB.supperC.lunchD.breakfast
()54.A.onB.byC.withD.in
()55.A.peopleB.carsC.busesD.kites
()56.A.sawB.climbedC.leftD.found
()57.A.behindB.afterC.withD.before
()58.A.timeB.homeC.workD.game()59.A.restB.lookC.workD.swim
()60.A.hardB.goodC.longD.short
三.阅读理解(30分)
A
Tom and Mike were good friends.Sometimes they were kind to each other, sometimes they were not.But all of their classmates said they were like brothers.One day they went out for a walk together.At noon they were very hungry and they went into a restaurant to have lunch.The waiter came up to them and asked,“What can I do for you?”
“Please bring us two apples first.” said Tom.When the waiter put two apples on the table,Mike took the bigger one at once.Tom got angry,“You are impolite,Mike.Why don’t you take the smaller one?” Tom said.“But I am right.”said Mike with a smile,“if I let you take first, which one will you choose?“
“Of course I’11 take the smaller one.”said Tom.“Yes.”Mike said,“If you take the smaller one,the bigger one will still be mine.Don’t you think so?“
“Oh!”Tom couldn’t answer.()61.Tom and Mike were______
A.always kind to each otherB.sometimes kind to each other
C.dear brothersD.friends of different school
()62.Mike thought only about_______ when they were having lunch.A.himselfB.TomC.his parentsD.his friends
()63.The waiter gave them_______
A.two eggsB.two applesC.three orangesD.some milk
()64.Tom took the_______ apple.A.betterB.biggerC.smallerD.worse
()65.Who took the apple first? ______
A.MikeB.TomC.Both Tom and MikeD.The waiter
B
Once upon a time, there lived a rich man.He had a servant(仆人).He and the servant loved wine and good food very much.Each time the rich man left his home, the servant would drink the wine and eat up all the nice food in the house.The rich man knew what his servant did, but he had never caught his servant doing that.One morning, when he left home, he said to the servant, “Here are two bottles of poison(毒药)and some nice food in the house.You must take of them.” With these words, he went out.But the servant knew that the rich man had said was untrue.After the rich man was away from his home, he enjoyed a nice meal.Because he drank too much, he was drunk and fell to the ground.When the rich man came back, he couldn’t find his food and his wine.He became very angry.He woke the servant up.But the servant told his story very well.He said a cat had eaten up everything.He was afraid to be punished(惩罚), so he drank the poison to kill himself.()66.In the story, _______ liked wine and good food very much.A.the rich manB.the servantC.both A and BD.neither A and B
()67.The rich man knew that it was _______ that drank the wine and ate up all the nice food.A.the catB.himselfC.nobodyD.the servant
()68.The rich told the servant that there was poison in the two bottles, because ________.A.there was in fact poison in the bottles
B.did not want the servant to drink his wine
C.he wanted to kill the cat
D.he wanted to kill the servant)69.In fact, _______ ate all the nice food and drank the wine.A.the servantB.catC.the rich manD.nobody)70.From the story, we know that the servant is very _______.A.lazyB.badC.cleverD.kind
C
The Blacks live in a big city, Last summer they went to the countryside for their vacation.They enjoyed it very much, because it was a quiet and clean place.One day, they went for a walk in the morning and met an old man.The old man lived on the farm and he was in the warm sun in front of his house.Mr.Black asked him, “Do you like living in a quiet place?” The old man said yes.Mr.Black said, “What are the good things about it?” The old
man answered, “People here know each other.People often come and see me.And
I often go and see them.There are lots of children here.” Mr.Black said, “That sounds interesting.And what are the bad things?” The old man thought for a while and said, “The same things, in fact.”
根据短文内容判断句子正(A)误(B)
()71.The Blacks enjoyed their vacation.()72.They went for a walk with an old man.()73.The old man feels lonely(孤独的).()74.Sometimes the old man likes to meet people but sometimes he doesn’t.()75.The Blacks often meet the old man in the countryside.四、用所给单词的适当形式填空。(10分)
76.A lot of vegetables help you ____________(keep)in good health.77.My mother wants me ____________(drink)some milk every day.78.His ____________(eat)habits are pretty good, so he’s very healthy.79.It is very necessary for us ____________(read)English in the morning.80.He can hardly make the baby ____________(stop)crying.81.6.Both of ____________(they)are outgoing.82.He sings ____________(well)than his sister.83.My brother and I(not be)in Beijing last month.84.My father plays basketball ____________(two)a week.85.He ____________(watch)TV every night.五.句型转换(10分)86.Most students exercise three times a week.(就划线部分提问)
((do most students exercise? 87.I sleep nine hours every night.(就划线部分提问)hours do you sleep every night? 88.My favorite program is Animal World.(就划线部分提问)your favorite program? 89.My sister often goes to a movie on weekends.(就划线部分提问)your sister oftenon weekends? 90.She sometimes does her homework at school.(就划线部分提问)does sheher homework at school?
六.书面表达.(10分)
根据下列提示,描述你曾经的一次度假经历.Where did you go?How was the weather there? How did you get there?
How was the food there? How was the vacation?
要求:不能逐字逐句的翻译上面的提示,字数不能少于100字.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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第四篇:二年级数学上学期第一次月考试题
二年级上学期月考达标检测
满分:100分
得分:
1.我会填。(44分)
(1)我们认识了两个长度单位,它们是()和()。量比较短的物体,如铅笔的长度,应该用()作单位。量比较长的物体,如操场跑道的长度,应该用()作单位。
(2)1米=()厘米
2米=()厘米
600厘米=()米
(4)在做加法时,个位满(),向十位进1。在做减法时,个位不够减时,要从()位退1当()来减。
(5)在合适答案后的□里画“√”。
比1米高□
比1米长□
比1米长□
比1米长□
比1米矮□
比1米短□
比1米短□
比1米短□
(6)
量一量。
(7)在()里填上合适的长度单位。
一条鱼长约30()。
一棵树高约6()。
玻璃杯高约12()。
长颈鹿高约5()。
(8)30比44少(),比44多30的数是()。
二、选一选。(共10分)
1.我的食指的宽度大约是()。
①1厘米
②1米
③1拃
2.黑板的长约是()。
①4米
②3厘米
③30厘米
2.下图中,()是线段。
3.1米65厘米可能是()。
①
妈妈的身高
②书包的长度
③旗杆的高度
4.给你三个点,以这三个点为端点,能画出()条线段。
①2
②3
③4
5.与82-28得数相等的算式是()。
①73-37
②37+17
③38+26
三、画一画。(共4分)
1.画一条长5厘米的线段。(2分)
2.画一条比5厘米长3厘米的线段。(2分)
四、用竖式计算。(12分)
61-19
70-15
48+47
57+7
63-8
75-19
五、比一比。(共3分)
()>()>()
六、解决问题。(27分)
1.李老师买来48个红气球,36个黄气球。一共买来多少个气球?
2、妈妈去超市购物,买拖把用去37元,付了50元。应找回多少元?
3.爸爸这个月的电话费是多少元?
4、购物。8周年店庆,满60元减10元。
(1)一辆玩具汽车比一块手表贵16元,一辆玩具汽车多少元?
(2)买一个篮球和一块手表能减10元吗?
(3)你还能提出其他数学问题并解答吗?
第五篇:湖北省浠水县英才学校、兰溪中学2013-2014学年七年级数学上第一次月考试题 新人教版
※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※ ※※※※※※※※※※※※※※※※※※※※※※※※ ※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※ 班级: 姓名: 考号: ※※※※※※※※※※※※※※※※※※ ※※※※※※※※※※※※※※※※※※※※※※※※ ※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※浠水县英才学校兰溪中学2013年秋季第一次月考七年级 数学试题满分:120分时间:120分钟
一、选择题(30分)
1、下列意义叙述不正确的是()A、若上升3米记作+3米,则0米指不升不降B、鱼在水中高度为-2米的意义指鱼在水下2米C、温度上升-10℃是指下降10℃D、盈利-10元是指赚了10元
2、有四包真空小包装火腿,每包以标准克数(450g)为基准,超过的克数记为正数,不足的克数记为负数,以下的数据是记录结果,其中表示实际克数最接近标准克数的数()A、+2克B、-3克C、+3克D、+3克
3、下列说法正确的是()A、整数就是正整数和负整数B、分数包括正分数与负分数C、有理数中,不是负数就是正数D、零是整数,但不是自然数 4、数轴上两个到原点距离相等的点间距离是8,则这两个数分别表示多少()A、8或-8B、4或-4C、8D、-4 5、下列说法:①规定了原点、正方向的直线是数轴;②数轴上两个不同的点可以表示同一个有理数;③有理数-11000在数轴上无法表示出来;④任何一个有理数都可以在数轴上找到与它对应的唯一点其中正确的是()A、①②③④B、②②③④C、③④D、④
6、将-3-(+6)-(-5)+(-2)写成省略括号的和的形式是()A、-3+6-5-2B、-3-6+5-2C、-3-6-5-2D、-3-6+5+2
7、已知两个有理数a,b,如果ab<0,a+b<0,那么()A、a>0,b<0B、a<0,b>0C、a,b异号D、a,b异号且负数的绝对值较大 8、下列说法错误的是()A、一个数同零相乘的积为0B、一个数同1相乘,积仍为这个数C、一个数同-1相乘,积为这个数的相反数D、互为相反数积是1
9、计算1+(-2)+3+(-4)+5+(-6)+…+19+(-20)得()A、10B、-10C、20D、-20 110、对任意四个有理数a,b,c,d定义新运算:
A、-2B、-4C、5D、-
5二、填空题(30分)
11、比较大小:-(-5)-(+6);-2ab12的值为()adbc,则cd43189;--310912、某冷库的室温为-4℃,有一批食品需要在-28℃冷藏,如果每小时降3℃,小时能降到所
要求的温度。
13、绝对值不小于3且小于5的所有整数的和是,所有整数的积是;
14、在数轴上与表示-3的点相距8个单位的点表示的数是;
15、-0.6的倒数是;-(-2)的相反数是;-9的绝对值是
16、三个数相乘积为负,则其中负因数的个数有;
17、已知x3,y2,且x 18、若a,b互为相反数,则a+2a+…+100a+100b+99b+…+b=; 19、下列说法:①两数的差一定小于被减数;②减去一个数等于加上这个数的相反数;③零减去一 个数等于这个数的相反数;④一个负数减去一个正数差小于0;⑤两数相加和小于每一个加数,则这两个数一正一负。其中正确的说法是; 20、对于有理数a,b定义运算※如下:a※b=(a+b)a-b,则(-3)※4=。 三、计算题(5×4=20) 1、(-4)-(+13)+(-5)-(-9)+72、6 13-3.3-(-6)-(-343.3 44 (-(6)(-10)(- 3、4、(24)(1 25、-4935143810.75)315(-8)16 四、解答题(40分) 1、(5分)写出下列各数的相反数,并把所有的数(包括相反数)在数轴上表示出来。 4, 12,(),(4.5),0,(3)322、(5分)已知a,b互为相反数,c,d互为倒数,x的绝对值是2,求1ab13cd2x2的值。 3、(5分)定义一种新运算&,即m&n=(m+2)×3-n,例如2&3=(2+2)×3-3=9.根据规定解答下列问题: (1)求6&(-3)的值; (2)6&(-3)与(-3)&6的值相等吗? 4(6分)、一口水井,水面比井口低3米,一只蜗牛从水面沿着井壁往井口爬,第一次往上爬了0.5米,却下滑了0.15米;第二次往上爬了0.42米,却下滑了0.1米;第三次往上爬了0.7米,却下滑了0.15米;第四次往上爬了0.75米,却下滑了0.1米;第五次往上爬了0.55米,却下滑了0.1米;第六次往上爬了0.49米,没有下滑。问蜗牛有没有爬出井口? 5、(6分)有7箱台湾火龙果,标准质量为每箱15千克,每箱与标准质量差值如下(单位:千克,超过的用正数表示不足的用负数表示):0.3,-0.4,0.25,-0.2,-0.7,-1,1.1,称得总质量与总标准质量相比超过或不足多少千克?7箱火龙果共有多少千克? 6、(6分)某司机在东西路上开车接送乘客,他早晨从A地出发,(取向东为正)到晚上送走最后一位乘客为止,他一天行驶里程记录如下(单位:㎞): +10,-5,-15,+30,-20,-16,+14 (1)该司机最后离出发点A地多远?在哪个方向上? (2)若汽车每100㎞耗油3L,则该汽车今天耗油多少升? 7、(7分)已知xy2与y互为相反数,试求代数式 1111的值。x2011y2011xyx1y1x2y 2七年级数学月考试题答案 一、选择题: 1、D2、A3、B 4、B5、D 6、B 7、D8、D9、B10、D 二、填空题 11、>,<,>12、813、0,14414、-11或515、-5 3,-2,916、1个或3个 17、-3,218、019、②③④20、-7 三、计算题 1、-62、203、-94、-715、399 1四、解答题 1、略2、12或-713、(1)27(2)6&(-3)=27,(-3)&6=-9所以不相等。 4、0.5-0.15+0.42-0.1+0.7-0.15+0.75-0.1+0.55-0.1+0.49=2.81米<0.3米蜗牛没有爬出井口 5、不足0.65㎏,共104.35 ㎏ 6、(1)+10+(-5)+(-15)+30+(-20)+(-16)+14=-2,在西边2㎞处 (2)3.3L7、2012 2013