高2014级10月月考试题
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双流县永安中学2014-2015学年高一年级上期十月考考试题数学命题人:肖道清 审题人:唐林梅 张云惠 陈强满分:150分 时间:120分钟注意事项:1.请在答题卷上相应的地方写上班级,姓名,学号。
2.答案写在答题卡上相应的地方,只交答题卡。
3.解答题要求写出解答过程,字迹工整。
第I 卷(选择题共50分)一.选择题(每小题5分,每小题只有一个正确答案,共50分) 1、已知全集{}4,3,2,1,0,1-=U ,{}4,2,0,1-=A ,则U C A =( ).A.φB. }4,2,0{C. }3,1{D.}3,1,1{- 2、函数21)(--=x x x f 的定义域为( ). A.[1,2)∪(2,+∞) B.(1,+∞) C.[1,2) D.[1,+∞) 3、已知函数0()(>=a a x f x 且)1≠a ,若2)1(=f ,则函数)(x f 的解析式为( ).A .x x f 4)(=B .x x f 2)(=C .x x f )41()(=D .x x f )21()(=4、下列说法错误的是( ).A.42y x x =+是偶函数B. 偶函数的图象关于y 轴成轴对称C. 奇函数的图象关于原点成中心对称D.32y x x =+是奇函数 5、下列各组函数是同一函数的是( ).①32)(x x f -=与x x x g 2)(-=; ②x x f =)(与2)()(x x g =; ③0)(x x f =与01)(xx g =; ④12)(2--=x x x f 与12)(2--=t t t g A 、①② B 、①③ C 、③④ D 、②④ 6、若集合{}|32,S y y x x R ==+∈,{}2|1,T y y x x R ==-∈,则ST 是( )。
A .SB . TC . φD .有限集 7、已知1)1(+=+x x f ,则函数)(x f 的解析式为( ). A 、2)(x x f = B 、)1(1)(2≥+=x x x f C 、)1(22)(2≥+-=x x x x f D 、)1(2)(2≥-=x x x x f////////////////////////////////////////////////////////////线 封 密 双流中学永安校区_________班 姓名________________ 科目 考号8、下列判断正确的是( )。
合阳中学2014--2015年度高二年级第一次月考试题第Ⅰ卷 (选择题 共60分)一、单项选择题(每小题只有一个正确选项,请将正确选项填涂在答题卡上。
每小题4分,共40分)1.两个放在绝缘架上的相同金属球,相距r ,球的半径比r 小得多,带电荷量大小分别为q和3q ,相互作用的斥力为3F . 现让这两个金属球相接触,然后分开,仍放回原处,则它们之间的相互作用力将变为A .F B.4F 3C .4FD .以上三个选项之外的一个值 2.如图所示,P 、Q 是两个电荷量相等的异种电荷,在其电场中有a 、b 、c 三点在一条直线上,平行于P 、Q 的连线,b 在P 、Q 连线的中垂线上,ab=bc,下列说法正确的是A.ϕa>ϕb>ϕcB. ϕa>ϕc>ϕbC.Ea>Eb>EcD.Eb>Ea>Ec3.如图所示,实线表示电场线,虚线表示只受电场力作用的带电粒子的运动轨迹.粒子先经过M 点,再经过N 点.可以判定A .粒子在M 点受到的电场力大于在N 点受到的电场力B .M 点的电势高于N 点的电势C .粒子带负电D .粒子在M 点的动能大于在N 点的动能4.a 、b 、c 、d 是匀强电场中的四个点,它们正好是一个矩形的四个顶点.电场线与矩形所在平面平行.已知a 点的电势为20 V ,b 点的电势为24V ,d 点的电势为4 V ,所示.由此可知c 点的电势为A.4 VB.8 VC.12 VD.24 V5.如图所示,一带电小球A,用绝缘细线拴住系在O 点,在O 点正下方固定一个带电小球B,A 球被排开.当细线与竖直方向夹角为α时系统静止,由于支持B 球的绝缘柄漏电,在B 球电荷量缓慢减少的过程中,发现α逐渐减小,那么该过程中细线的拉力应该如何变化(A 、B 看作点电荷)A.不变B.变大C.变小D.无法判断6. 在点电荷 Q 形成的电场中有一点A ,当一个-q 的检验电荷从电场的无限远处被移到电场中的A 点时,电场力做的功为W ,则检验电荷在A 点的电势能及电场中A 点的电势分别为A.q W W A A =-=ϕ,E B.q W W A A -==ϕ,E C.q W W A A ==ϕ,E D.q W W A A -=-=ϕ,E7.用控制变量法,可以研究影响平行板电容器电容的因素(如图所示).设两极板正对面积为S ,极板间的距离为d ,静电计指针偏角为θ.实验中,极板所带电荷量不变,若 A .保持S 不变,增大d ,则θ变大B .保持S 不变,增大d ,则θ变小C .保持d 不变,减小S ,则θ变小D .保持d 不变,减小S ,则θ不变8.如图所示,a 、b 是两个带有同种电荷的小球,现用两根绝缘细线将它们悬挂于真空中同一点.已知两球静止时,它们离水平地面的高度相等,线与竖直方向的夹角分别为α、β,且α<β.现有以下判断,其中正确的是A.a 球的质量一定大于b 球的质量B.a 球的电荷量一定大于b 球的电荷量C.a 球对b 球的库伦力一定大于b 球对a 球的库伦力D.以上说法均不正确9.空间有平行于纸面的匀强电场.一电荷量为-q 的质点(重力不计),在恒定拉力F 的作用下沿虚线由M 匀速运动到N ,如右图所示,已知力F 和MN 间夹角为θ,MN 间距离为d ,则( )A .MN 两点的电势差为Fdcos θqB .匀强电场的电场强度大小为Fdcos θqC .带电小球由M 运动到N 的过程中,电势能减少了Fdcos θD .若要使带电小球由N 向M 做匀速直线运动,则F 必须反向10.两块大小、形状完全相同的金属平板平行放置,构成一平行板电容器,与它相连接的电路如图所示,接通开关K ,电源即给电容器充电( )A .保持K 接通,减小两极板间的距离,则两极板间电场的电场强度减小B .保持K 接通,在两极板间插入一块介质,则极板上的电荷量减小C .断开K ,减小两极板间的距离,则两极板间的电势差减小D .断开K ,在两极板间插入一块介质,则两极板间的电势差增大二、多项选择题(每题给出的四个选项中,有多个选项正确,选对的得4分,选对但不全的得2分,有选错或不选的得0分)11.关于静电场,下列结论普遍成立的是A .电场强度大的地方电势不一定高B .电场中任意两点之间的电势差只与这两点的场强有关C .在正电荷或负电荷产生的静电场中,场强方向都指向电势降低最快的方向D .将正点电荷从场强为零的点移动到场强为零的另一点,电场力做功为零12.以下说法正确的是:A 、q F E =是电场中某点的电场强度的定义式,是用比值法定义的物理量,场强由电场本身决定,与F 和q 无关B 、由q E p =ϕ可知, 电场中某点的电势ϕ与q 成反比 C 、由d E U ab ⋅=可知匀强电场中任意两点a 、b 间距离越大,则两点间电势差也一定越大 D 、2r kQE =是真空中点电荷场强的计算式,E 与Q 成正比,与r 的平方成反比13.如右图所示,用电池对电容器充电,电路a 、b 之间接有一灵敏电流表,两极板之间有一个电荷q 处于静止状态,现将两极板的间距变大,则( )A .电荷将向上加速运动B .电荷将向下加速运动C .电流表中将有从a 到b 的电流D .电流表中将有从b 到a 的电流14.如图所示为空间某一电场的电场线,a 、b 两点为其中一条竖直向下的电场线上的两点,该两点的高度差为h ,一个质量为m 、带电荷量为+q的小球从a 点静止释放后沿电场线运动到b 点时速度大小为3gh ,则下列说法中正确的是( )A .质量为m 、带电荷量为+q 的小球从a 点静止释放后沿电场线运动到b 点的过程中动能增加量等于电势能减少量B .a 、b 两点的电势差U =mgh 2qC .质量为m 、带电荷量为+2q 的小球从a 点静止释放后沿电场线运动到b 点时速度大小为ghD .质量为m 、带电荷量为-q 的小球从a 点静止释放后沿电场线运动到b 点时速度大小为gh15.如图甲所示,两平行金属板竖直放置,左极板接地,中间有小孔,右极板电势随时间变化的规律如图乙所示,电子原来静止在左极板小孔处(不计电子的重力).下列说法正确的是A .从t =0时刻释放电子,电子始终向右运动,直到打到右极板上B .从t =0时刻释放电子,电子可能在两板间来回振动C .从t =T/4时刻释放电子,电子可能在两板间来回振动,也可能打到右极板上D .从t =3T/8时刻释放电子,电子必将打到左极板上第II 卷(非选择题,共40分)三.计算题(本题共3小题,共40分。
哈师大附中2011级高三历史10月月考试题命题人:赵立多吕静胡冬梅校题人:赵立多第Ⅰ卷选择题(共48分)一、选择题(本大题共32小题,每小题1.5分,共48分。
在每小题列出的四个选项中只有一项最符合题目要求。
)1.傅斯年在《历史语言研究所工作之旨趣》一文中指出,“能利用各地各时的直接材料,……材料愈扩充,学问愈进步,……地质、地理、考古、生物、气象、天文等学,无一不供给研究历史问题者之工具,……要把历史学语言学建设得和生物学地质学等同样,乃是我们的同志!”对于上述观点理解最恰当的是A. 傅斯年强调史学研究中史料的重要性B. 傅斯年主张在史学研究中运用自然科学的方法C. 傅斯年认为历史学应该涵盖各种学科D. 傅斯年重史学的客观性而不重史家的主观取向2.据史书记载:“牵牛以蹊(xi踩踏)人之田,而夺之牛。
牵牛以蹊者,信有罪矣,而夺之牛,罚已重矣。
”这种现象最早出现在A.西周时期 B.春秋战国 C.秦统一后 D.明清时期3.《汉书·王莽传》载:“圣王序天文、定地理,因山川民俗以制州界。
”这说明A.圣人考察山川地理都为地方行政管理 B.民风习俗是行政区划的核心依据C.地域和文化心理特征是行政区划依据 D.自然环境是行政区划的主要标准4.马克斯·韦伯等指出,任何官僚组织为了发挥其正常的管理效率,都必须建立具有普遍约束力的规章制度,……即使是专制君主也必须在一定程度上尊重官僚组织的活动规范和规章制度。
在古代中国政治制度中最能佐证这一观点的是A.三公九卿制 B.三省六部制 C.内阁制 D.军机处5.梁方仲在《中国历代户口、田地、田赋统计》中对西汉、唐代部分地区人口密度统计进行了抽样对比,C.从汉到唐长江流域经济发展较快 D.人口密度值能衡量出社会发展速度6.《史记》有《河渠书》,《汉书》有《沟洫志》,主要针对黄河患害的严重而写的。
但是,《后汉书》到新、旧《唐书》都没有《河渠书》或《沟洫志》等篇章。
瓦房店高级中学2014届高三10月月考英语试题第二部分英语知识运用(共两节,满分45分)第一节:单项填空(共15小题;每小题1分,满分15分)21.Marry had made up her mind to give it up, but on _________ second thought she determined to have __________ third try.A. / ; /B. a; aC. the; aD. / ; a22. Miss Li always tries her best to create an atmosphere in class ______ can help herstudents practice their speaking skills.A . for whichB . whichC . where D. of which 23.The President _____ the woman’s service to her country by awarding her a medal.A. acceptedB. recognizedC. declaredD. realized24. To make her business look impressive, Lisa rented a big office _____ the fact thatmoney wasn’t enough to pay the employees.A. despiteB. besideC. because ofD. in case of 25.In Pakistan, marrying without parental approval can mean ____________ from one’s family.A. being completely cut upB. to be completely cut offC. to be completely cut upD. being completely cut off26.---There’s someone knocking on the do or. Who _________ it be?---It must be John. He promised to be here at 8:00.A. mustB. canC. needD. shall27.A modern city has been built _____ a very small village was many years ago.A. whatB. whereC. thatD. in which28. —Tom seems to be familiar with London.---Yes. He ___________ here for three years. It’s great for him to be back.A. have livedB. had livedC. livedD. lives29. Of all the methods they provided, ______ is of any help for solving the mathproblem.A. nothingB. neitherC. noneD. no one30. Plastic bottles can be recycled but they need cleaning thoroughly, _______ they?A. needn'tB. don'tC. mustn'tD. can't31. There are frequently reports of accidents as fireworks ______, stored ortransported.A. have been madeB. are being madeC. were madeD. have made32. We left the small town, ______ clearly_____ no need to stay.A. there;beingB. it; wasC. it; being;D. there;was33. Lee was faced with the of whether or not to return to his country after he gotthe doctor's degree in America.A.situation B.dilemma C.environment D.circumstance34. ________ Anirban Maitra, a professor at Oxford University, Jack’s successwould not have been possible.A. If it weren’t forB. Were it not forC. Had it not been forD. If it hasn’t been for35. -- How do you find the performance by the pianist?-- ______. I can't think too highly of it.A. It's really wonderfulB. It all dependsC. No one knows for certainD. It is not my cup of tea第二节完形填空(共20小题:每小题1.5分,满分30分)When I was fifteen, I announced to my English class that I was going to write my own books. Half the students sneered(冷笑), the 36 nearly fell out of their chairs laughing. “Don’t be silly, only37 can become writers, ” t he English teacher said, “And you are getting a D this term. ” I was so38 that I burst into tears.That night I wrote a short 39 poem about broken dreams and mailed it to the newspaper. To my 40 , they published it and sent me two dollars. I was a published and 41 writer. I showed my teacher and fellow students. They 42 . “Just plain dumb luck. ” the teacher said. I tasted43 and I’d sold the first thing I’d ever written. That was more than any of them had done and if it was just dumb luck, that was 44 with me.During the next two years I sold dozens of 45 , letters, jokes and recipes. By the time I 46 from high school, with a C minus average, I had scrapbooks(剪贴簿)filled with my published works. I 47 mentioned my writing to my teachers, friends or my family again. They were dream killers and 48 people must choose between their friends and their dreams, they must always choose their 49 .I had four children at the time, and the oldest was only four. I wrote what I felt. It50 nine months, just like a pregnant woman. I mailed it without a self addressed stamped 51 and without making a copy of the manuscript.A month later I received a(n)52 , and a request to start working on another book. The worst year I earned two dollars. In my best year I earned 36, 000 dollars. 53 years I earned between five thousand and ten thousand. No, it isn’t enough to live54 , but it’s still more than I’d make working part time. People ask what college I55 , what degrees I had and what qualifications I have to be a writer. The answer is:“None. ”I just write. I’m not a genius.36. A. whole B. other C. most D. rest37. A. generals B. statesmen C. geniuses D. spies38. A. delighted B. anxious C. ashamed D. upset39. A. sad B. innocent C. disappointing D. puzzled40. A. delight B. astonishment C. comfort D. happiness41. A. borrowed B. lent C. paid D. cost42. A. cried B. agreed C. swore D. laughed43. A. failure B. success C. coldness D. squeeze44. A. fine B. mixed C. compared D. full45. A. books B. poets C. novels D. poems46. A. dropped out B. left C. graduated D. laid off47. A. ever B. never C. seldom D. even48. A. if B. unless C. until D. before49. A. teachers B. family C. friends D. dreams50. A. spent B. cost C. took D. wasted51. A. letter B. envelope C. writer D. cover52. A. agreement B. edition C. trade D. patent53. A. Recent B. Memorable C. Most D. Several54. A. with B. on C. by D. in55. A. deserved B. introduced C. founded D. attended第三部分阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)ABetty Friedan, born in 1921 in Peoria, Illinois, attended Smith College in Northampton, Massachusetts. She finished her studies in psychology in 1942. After college she attended the University of California at Berkeley to continue her studies.Later, she moved to New York City and worked as a reporter and editor for labor union newspapers.In 1947, Betty married Carl Friedan. They had a child, the first of three. When Betty Friedan became pregnant for the second time, she was dismissed from her job at the newspaper. After that she worked as an independent reporter for magazines. But her editors often rejected her attempts to write about subjects outside the traditional interests of women.In 1966, Betty Friedan helped found NOW, the National Organization for Women. She served as its first president. She led campaigns to end unfair treatment of women seeking jobs. She wanted women to take part in social and political change. Betty Friedan led a huge demonstration(游行) in New York City for women’s rights. Demonstrations were also held in other cities.In 1981, Betty Friedan wrote a book called “The Second Stage”about the condition of the women’s movement. Friedan wrote that the time for huge demonstrations and other such events had passed. She urged the movement to try to increase its influence on American political life. Some younger members of the movement criticized her as too conservative.Betty Friedan died on February 4, 2006. She was considered the mother of modern women’s liberation movement. Betty Friedan once told a television reporter how she wanted to be remembered: “She helps make women feel better about being women.”56. According to Paragraph 2, Betty lost her job because .A. she was pregnantB. she got marriedC. her editors didn’t like herD. she was too independent57. Betty led a huge demonstration to .A. fight against the governmentB. fight for women’s rightsC. take part in political lifeD. get support from the government58. The book “The Second Stage”.A. was popular among young women readersB. thought highly of those huge demonstrationsC. was about the condition of the women’s movement thenD. decreased the movement’s influence on American political life59. From the last paragraph, we know that .A. Betty helped women live betterB. Betty wanted to be remembered foreverC. Betty thought it better to be a womanD. the television reporter knew Betty wellBA new study of 8,000 young people in the Journal of Health and Social Behavior shows that although love can make adults live healthily and happily, it is a bad thing for young people. Puppy love (早恋) may bring stress for young people and can lead to depression . The study shows that girls become more depressed than boys, and younger girls are the worst of all.The possible reason for the connection between love and higher risk of depression for g irls is “loss of self”. According to the study, even though boys would say “lose themselves in a romantic relationship”, this “loss of self” is much more likely to lead to depression when it happens to girls. Young girls who have romantic relationships usu ally like hiding their feelings and opinions. They won’t tell that to their parents.Dr Marian Kaufman, an expert on young people problems, says 15% to 20% young people will have depression during their growing. Trying romance often causes the depression. She advises kids not to jump into romance too early. During growing up, it is important for young people to build strong friendships and a strong sense of self. She also suggests the parents should encourage their kids to keep close to their friends, attend more interesting school activities and spend enough time with family.Parents should watch for signs of depression -- eating or mood changes -- and if they see signs from their daughters or sons, they need to give help. The good news is that the connection between romance and depression seems to become weak with age. Love will always make us feel young, but only maturity (成熟) gives us a chance to avoid its bad side effects.60. Which of the following is more likely to have depression?A. Young people who have a strong sense of selfishness.B. Young girls who always hide their feelings and opinions.C. Young boys whose parents watch for their behavior.D. Careless parents whose children are deep in love.61. What can be inferred from the passage?A. The older a woman is,the less likely she seems to lose herself in romance.B. Lacking love can lead young people to grow up more quickly.C. Early love makes young people keep close to their friends and parents.D. Parents should help their children to be aware of the signs of depression.62. What’s the author’s attitude towards puppy love?A. Confused.B. Disinterested.C. Scared.D. Disapproving.63. What’s the main idea of the passage?A. Puppy love may bring young people depression.B. Paren ts should forbid their children’s love.C. Romance is a two - edged sword for adults.D. Romance is good for young people.CNew research shows that overweight or even mildly obese people have a lower risk of early death than people considered to be normal weight.Researchers examined the results of 97 studies. Most of the studies were less than 10 years old. They included almost three million adults from around the world, including the United States, Canada, China, Taiwan, Brazil, India and Mexico.The researchers at the National Center for Health Statistics found that people who are considered overweight or slightly obese were five to six percent less likely to die from all causes than people of normal weight. People with higher obesity ratings, however, had almost a 30 percent greater risk of death compared to normal-weight individuals.Katherine Flegal was the lead author of the study. She says she was not surprised that overweight people would not have a higher risk of death.“Because we’d actually alre ady read a lot of this literature and realized it was likely that mortality rates (死亡率) for overweight would be at least not higher than normal weight. I guess I was a little bit surprised that it was definitely lower. And I was also surprised that the lower rates of obesity also didn’t seem to differ from normal weight.”But she says the difference in death rates appears to be small between normal-weight people and those who are overweight or mildly obese.The study has raised new questions about “body mass index,”(体重指数)or BMI. This is a measurement of body fat as a ratio(比率)of height to weight. In recent years, many public health experts have promoted body mass index as a way to predict the risk of health problems. But a person's BMI can be misleading in some cases.Steven Heymsfield ,the executive director of the Pennington Biomedical Research Center, says people can be physically fit and in good health, but might weigh more because they are more muscular.Still, Dr. Heymsfield says people should not think gaining extra weight is OK just because of the new findings. He says being at a healthy weight lowers the risk for heart disease and diabetes(糖尿病).64.According to the new findings, the researchers found that __________ .A.People with high obesity have a lower risk of early death than people withlow obesityB.People with overweight have a greater risk of early death than people ofnormal weight.C.People with mild obesity are less likely to die than people of normal weight.D.People with obesity live much longer than people of normal weight. 65.Wha t does the underlined word “literature” in paragraph 6 mean ?A.works like novels and poemsB.books and articles on a particular subjectC.printed materialD.magazines and newspapers66. Which of the following statements is not true according to the passage?A. BMI is commonly used to measure body fat as a ratio of height to weight.B. Not all people with a little higher BMI are fat .C. Many public health experts encourage more people to use BMI as a way topredict the risk of health problemD. Because of the new findings, people should think about gaining extra weight.DMichael froze as he heard the voice on the radio saying that a man had been murdered by a bullet that had come from the sky. Thinking that the shot they had fired possibly was the shot that killed Mr. Ward, he immediately drove off. For the next two months, Michael and Joe hid the secret that the bullet had actually shot Mr. Ward.During this time, Jenna Ward started to realize life without her father. WhileJenna mourned the death of her father, a strange boy started to appear at the front steps of the church. After many nights of watching this boy, she finally recognized that it was Michael who was sitting on the steps every night.After months of finding out where the shot came, the po lice arrived at Michael’s house. His dad mentioned the gun that Michael had received from his grandpa at his birthday party. Michael told the police that Joe had borrowed the gun. Upon this, Joe said that the gun had been stolen out of his car along with his CD player. After the police were gone, Michael met Joe and told Joe the gun was under the wood pile in his backyard.67. It can be inferred from the story that Michael and Joe _____.A. shot and killed Mr. Ward by accidentB. shot and killed Mr. Ward deliberatelyC. fired a bullet that killed Ward from the skyD. were experienced professional murders68. Why did Michael sit on the steps of the church every night?A. He was monitoring Jenna’s whereabouts (行踪).B. He was probably feeling upset and guilty.C. He wanted to make sure that Ward was dead.D. He wanted to show sympathy for the Wards.69. The underlined phrase “turned himself in” in the last paragr aph means _____.A. returned homeB. went into the roomC. fled into the woodsD. delivered himself to the police70. From the passage we can learn that _____.A. Michael lent the gun to Joe at his birthday partyB. the gun togeth er with a CD player was stolen from Joe’s carC. Michael hid the gun under the wood pile in his backyardD. the Sergeant discovered the bullet in the wood pile第二节(共5小题;每小题2分,满分10分)What Teenagers Can Do To Earn More RespectAs teenagers continue to grow and develop into young adults, the transition(过渡) into adulthood has begun. With so many physical and emotional changes going on, certain manners are often forgotten and other adult traits are not yet accepted as a way of life. 71 By doing the following things, you will earn more respect.1.Contribute to the householdAt the very least, clean up after yourself. As a teenager, you are old enough to clean up after yourself. When you make a mess, clean it up. 72 All chores that you do help to reduce the load of the person who did them before. Now that you’re old enough and capable, why shouldn’t you contribute to the household? 732.Be responsible74 Whether they are basic things, like brushing your teeth or doing your homework , or more involved chores that contribute to the household, simply fulfill your responsibilities on time. When adults know that they can rely on you, their trust and respect for you will increase.3. Solve more of your own problem without asking for helpInstead of taking the easy approach and asking for help, make an effort to solve your problems on your own first. The “easy way ” is only easy for you, but it is an extra task for the person from whom you are seeking help. Seek help only after you have made an honest effort to solve your own problems. 75 When you become a good problem solver, you increase your valve to the community.A.The people doing the chores before will greatly appreciate the help.B.It will make your life more pleasant.C.Everyone has certain responsibilities.D.When speaking to a group, speak loud enough.E.This includes. But is not limited to , your dishes and your room.F.By being aware of these manners and traits, you can manage them sooner.G.Depending on the problem, 15 minutes of effort is usually a good guideline.第四部分:写作(共两节,满分35分)第一节:短文改错(共10小题,每小题1分,满分10分)Before lunch Allen happened to see a man fished in a water hole about five metre outside a bar. Allen stopped curiously. All people passing over the man who wasfishing regarded him like a foolish man. Therefore, Allen said kindly to fish-catcher, “Hello, will you please do me a favor and have a drink with me in the bar?” The man gladly received his invitation. After buying the man several cups of soft drinks, Allen asked, “You are fishing there, right? May I know how much fish you have caught this morning?” “You are the number 8,” said the man humorous.第二节书面表达(满分25分)假设你是学校的学生会主席,你校计划下周举行为抚顺洪水灾区人民献爱心捐助活动,请你代表学生会向同学们发出倡议,要点如下:1. 受灾严重,急需食品、衣物和药品等;2. 号召学生捐款捐物,会尽快送往灾区;3. 你的看法。
万州武陵中学高2014级十月月考物理试题一、选择题(共6个小题,每题6分)1.如图所示,物体A和B的质量均为m,且分别与跨过定滑轮的轻绳连接(不计绳与滑轮、滑轮与轴之间的摩擦)在用水平变力F拉物体B沿水平方向向右做匀速直线运动的过程中,则( )A.物体A也做匀速直线运动B.绳子拉力始终等于物体A所受重力C.绳子对A物体的拉力逐渐增大D.绳子对A物体的拉力逐渐减小2.如图所示,分别用力F1、F2、F3将质量为m的物体由静止沿同一光滑斜面以相同的加速度从斜面底端拉到斜面的顶端,在此过程中,F1、F2、F3做功的功率大小关系)A.P1=P2=P3B.P1>P2=P3C.P3>P2>P1D.P1>P2>P33.如图所示,质量为m的物块,始终固定在倾角为α)①若斜面向左匀速移动距离s②若斜面向上匀速移动距离s,斜面对物块做功mgs③若斜面向左以加速度a移动距离s,斜面对物块做功ma s④若斜面向下以加速度a移动距离s,斜面对物块做功m(g+a)sA.①②③B.C.②③④D.①③④4.一木块前端有一滑轮,绳的一端系在右方固定处,另一端穿过滑轮用恒力F拉住保持两股绳之间的夹角θ不变,如图所示,当用力拉绳使木块前进s时,力F对木块做的功(不计绳重和摩擦))A.Fs cosθB.Fs(1+cosθC.2Fs cosθD.2F s5.如图所示,质量为m的物体,由高h处无初速滑下,至平面上A点静止,不考虑B点处能量转化,若施加平行于路径的外力使物体由A点沿原路径返回C点,则外力至少做功为()A.mghB.2mghC.3mghD.二、非选择题(共4小题,共68分)6.(一) 现要测定木块与长木板之间的动摩擦因数,给定的器材如下:一个倾角可以调节的长木板(如图)、木块、计时器、米尺。
请填入适当的公式或文字,完善以下实验步骤:①用米尺测量长木板顶端B 相对于水平桌面CA 的高度h 和长木板的总长度L 。
设木块所受重力为mg ,木块与长木板之间的动摩擦因数为μ,则木块所受的合外力表达式F =__________。
新课标人教版高一月考:成都树德中学高2017届2014~2015学年度上期10月月考高一语文试题成都树德中学高2017届2014~2015学年度上期10月月考高一语文试题高2014级第一期10月阶段性考试语文试题考试时间90分钟满分100 + 附加分10分全卷试题总分97分卷面书写3分附加分不计入总分命题人:高2014级语文备课组一、阅读下面的文段,回答后面的问题。
(15分)既至秦,持千金之资币物,厚遗秦王宠臣中庶子蒙嘉。
嘉为先言于秦王曰:“燕王诚振怖大王之威,不敢兴兵以拒大王,愿举国为内臣。
比诸侯之列,给贡职如郡县,而得奉守先王之宗庙。
恐惧不敢自陈,谨斩樊於期头,及献燕之督亢之地图,函封,燕王拜送于庭,使使以闻大王。
唯大王命之。
”秦王闻之,大喜。
乃朝服,设九宾,见燕使者咸阳宫。
荆轲奉樊於期头函,而秦武阳奉地图匣,以次进。
至陛下,秦武阳色变振恐,群臣怪之,荆轲顾笑武阳,前为谢曰:“北蛮夷之鄙人,未尝见天子,故振慑,愿大王少假借之,使毕使于前。
”秦王谓轲曰:“起,取武阳所持图!”轲既取图奉之,发图,图穷而匕首见。
因左手把秦王之袖,而右手持匕首揕之。
未至身,秦王惊,自引而起,绝袖。
拔剑,剑长,操其室。
时恐急,剑坚,故不可立拔。
荆轲逐秦王,秦王还柱而走。
群臣惊愕,卒起不意,尽失其度。
而秦法,群臣侍殿上者,不得持尺兵;诸郎中执兵,皆陈殿下,非有诏不得上。
方急时,不及召下兵,以故荆轲逐秦王,而卒惶急无以击轲,而乃以手共搏之。
是时,侍医夏无且以其所奉药囊提轲。
秦王方还柱走,卒惶急不知所为。
左右乃曰:“王负剑!王负剑!”遂拔以击荆轲,断其左股。
荆轲废,乃引其匕首提秦王,不中,中柱。
秦王复击轲,被八创。
轲自知事不就,倚柱而笑,箕踞以骂曰:“事所以不成者,乃欲以生劫之,必得约契以报太子也。
”左右既前,斩荆轲。
秦王目眩良久。
1、下列加点词语解释错误的一项是(3分)A.群臣怪之怪:奇怪B.卒起不意卒:突然C.乃引其匕首提秦王提:掷击D.被八创被:遭受2、下列加点词语的用法和意义都相同的一项是(3分)A.图穷而匕首见B.而乃以手共搏之因人之力而敝之臣乃得有以报太子C.箕踞以骂曰D.卒惶急不知所为阙秦以利晋君亦无所害3、下列对所选文段内容所作的分析和概括,不正确的一项是(3分)A.选文生动地描绘了荆轲与秦王正面交锋,可谓波澜迭起。
第 1 页,共 3页南充龙门中学高2014级10月化学月考试题时间:90分钟命题人:郑旭东第 Ⅰ 卷 选择题 ( 50分)一、选择题 (本题包括25小题,每小题2分,共50分。
每小题只有一个选项符合题意)1.σ键可由两个原子的s 轨道、一个原子的s 轨道和另一个原子的p 轨道以及一个原子的p 轨道和另一个原子的p 轨道以“头碰头”方式重叠而成。
则下列分子中的σ键是由一个原子的s 轨道和另一个原子的p 轨道以“头碰头”方式重叠构建而成的是( ) A .H 2B .HClC .Cl 2D .F 22.下列说法中正确的是( )A .在气体单质分子中,一定含有σ键,可能含有π键B .在配位化合物中配位原子数等于配体个数C .烯烃比烷烃的化学性质活泼是由于烷烃中只含σ键而烯烃含有π键D .共价键的方向性决定了原子在形成分子时相互结合的数量关系 3.下列物质的分子中既有σ键,又有π键的是( )①HCl ②H 2O ③N 2 ④H 2O 2 ⑤C 2H 4 ⑥C 2H 2A . ①②③B . ③④⑤⑥C . ①③⑥D . ③⑤⑥ 4.下列分子中所有原子都满足最外层8电子结构的是( )A .光气(COCl 2)B .六氟化硫C .二氟化氙D .三氟化硼 5.H —O 键键能的含义是( )A .由O 和H 形成1 mol H 2O 所放出的能量B .把1 mol H 2O 中的共价键全部拆开所吸收的能量C .拆开约6.02×1023个H —O 键所吸收的能量 D .形成1个H —O 键所放出的能量6.共价键的断裂有均裂和异裂两种方式,即均裂:A ··B ―→A ·+B·,异裂:A ··B ―→A ++[··B]-。
下列化学反应中发生共价键均裂的是( )A.2K +2H 2O===2KOH +H 2↑B.2Na +2C 2H 5OH →2C 2H 5ONa +H 2↑C.Na 2CO 3+H 2O NaHCO 3+NaOH D.CH 3COOH +C 2H 5OH H 2O +CH 3COOC 2H 57.从实验测得不同物质中O —O 键之间的键长和键能数据(如下表)。
瓦房店高级中学2014届高三10月月考物理试题满分:100分时间:90分钟一、选择题:本题共12小题,每小题4分,共48分。
1至6题为单选,其余有多选,全部选对的得4分,选对但不全的得2分,有选错的得0分。
1.如图所示,在验证向心力公式的实验中,质量相同的钢球①放在A盘的边缘,钢球②放在B盘的边缘,A、B两盘的半径之比为2∶1.a、b分别是与A盘、B盘同轴的轮.a轮、b轮半径之比为1∶2,当a、b两轮在同一皮带带动下匀速转动时,钢球①、②受到的向心力之比为( )A.2∶1B.4∶1C.1∶4 D.8∶1球心连线的某点做周期相同的匀速圆周运动.根据宇宙大爆炸理论,双星间的距离在不断缓慢增加,设双星仍做匀速圆周运动,则下列说法错误的是( )A.双星相互间的万有引力减小B.双星做圆周运动的角速度增大C.双星做圆周运动的周期增大D.双星做圆周运动的半径增大3.如图所示,ACB是一光滑的、足够长的、固定在竖直平面内的“∧”形框架,其中CA、CB边与竖直方向的夹角均为θ.P、Q两个轻质小环分别套在CA、CB上,两根细绳的一端分别系在P、Q环上,另一端和一绳套系在一起,结点为O.将质量为m的钩码挂在绳套上,OP、OQ两根细绳拉直后的长度分别用l1、l2表示,受到的拉力分别用F1和F2表示,则( )①. 若l1=l2,则两绳受到的拉力F1=F2②. 若l1=l2,则两绳受到的拉力F1>F2③. 若l1<l2,则两绳受到的拉力F1<F2④. 若l1>l2,则两绳受到的拉力F1=F2A.①②B.③④C.①④D.②④4.如图,质量分别为m A和m B的两小球带有同种电荷,电荷最分别为q A和q B,用绝缘细线悬挂在天花板上。
平衡时,两小球恰处于同一水平位置,细线与竖直方向间夹角分别为θ1与θ2(θ1>θ2)。
两小球突然失去各自所带电荷后开始摆动,最大速度分别v A和v B,最大动能分别为E kA和E kB。
升学部《计算机组装与维修》2014级网站班月考试题(2014/10/14)考试时间:120分钟满分:100分答案填在答题卡中,答在试题上无效,只交答题卡。
一、单项选择题,(共40题,每题1分,共40分)1、世界上第一台电子数字计算机是()年出现的。
A、1958B、1946C、1965D、19472、微型计算机的发展史可以看作是()的发展历史。
A、微处理器B、主板C、存储器D、电子芯片3、对于微型计算机来说,()的工作速度基本上决定了计算机的运算速度。
A、控制器B、运算器C、CPUD、存储器4、控制器通过一定的()来使计算机有序的工作和协调,并且以一定的形式和外设进行信息通讯。
A、控制指令B、译码器C、逻辑部件D、寄存器5、对一台计算机来说,()的档次就基本上决定了整个计算机的档次。
A、内存B、主机C、硬盘D、CPU6、在计算机工作时,()给运算器提供计算机所用的数据。
A、指令寄存器B、控制器C、存储器D、CPU7、运算器运算的结果要存储在()中。
A、指令寄存器B、存储器C、控制器D、CPU8、计算机的()设备是计算机和外部进行信息交换的设备。
A、输入输出B、外设C、中央处理器D、存储器9、输入设备就是负责把计算机所要处理的问题转换为计算机内部所能接受和识别的()信息。
A、ASCII码B、二进制C、数字D、电10、一个字节由()位二进制信息组成。
A、2B、4C、8D、1611、计算机的容量一般用()来表示。
A、位B、字C、字长D、字节12、倍频系数是CPU主频和()之间的相对比例关系。
A、外频B、主频C、时钟频率D、都不对13、评定主板的性能首先要看()。
A、CPUB、主芯片组C、主板结构D、内存14、计算机的开机自检是在()里完成的。
A、CmosB、CPUC、BiosD、内存15、现在主板上面的内存插槽一般是168线的内存插槽,可以提供()线宽的数据。
A、16B、32C、64D、12816、存放在()中的数据不能够被改写,断电以后数据也不会丢失。
一.填空题:本大题共14小题,每小题5分,计70分,不需写出解答过程,请把答案写在答题纸的指定位置上.1.命题“若24x <,则2x <”的否命题是 .2. 函数2()lg(1)f x x =+-3. 设平面向量(1,2)a =,与向量(1,2)a =共线的单位向量坐标为 .4.已知0.70.90.60.80.8,0.8,log a b c ===,则a 、b 、c按从小到大的顺序排列为 .5. 若(sin )cos 21f x x =+,则1()2f =6. 若[]1,2x ∃∈,使不等式240x mx -+>成立,则m 7. 已知集合{}2|3100A x x x =--≤,集合{}121B x a x a =+≤≤-,且B A ⊆, 则a 的取值范围是 .8. 若函数()f x 的导函数2'()43f x x x =-+,则函数(1)f x -的单调减区间是 .9. 给出下列四个命题:①命题1sin ,:≤∈∀x R x p ,则1sin ,:<∈∃⌝x R x p .②当1≥a 时,不等式a x x <-+-34的解集为非空.③当1>x 时,有2ln 1ln ≥+xx . ④设,x y R ∈,则“2x ≥且2y ≥”是“224x y +≥”的充分而不必要条件.其中真命题的个数是10. 已知函数2()42f x x x k =-+-图像有两个零点,则k 取值范11. 已知函数()f x 是定义在R 上的偶函数,对任意的x R ∈都有(4)()(f x f x f +=+成立,若(1)3f =-,则(2013)f = .12. 设()f x 是R 上的奇函数,()g x 是R 上的偶函数,若函数()()f x g x +的值域为[)1,4-,则()(f xg -13.已知函数22652,()2ln ,x x e e x e f x x x x e⎧-++--≤=⎨->⎩(其中e 为自然对数的底数,且e≈2.718)若2(5)(4)f m f m -≥,则实数14. 记{}max ,a b 为,a b 两数的最大值,当正数,()x y x y >变化时,216max ,()t x y x y ⎧⎫=⎨⎬-⎩⎭二.解答题:本大题共6小题,计90分。
2014级10月考语文试题一、(本大题共4小题,每小题3分,共12分)1.下列词语中,字形和加点字的读音错误最多的一项是()A.嬉闹渲泄一愁莫展载.歌载舞(zǎi)船舷.(xián)B.撕打陷井共商国是胳.肢窝(gā)榫.头(sǔn)C.坐阵脉搏老两口悄.无声息(qiǎo)凝噎.(yâ)D.围拢装潢唇枪舌箭羯.鼓(jiã) 按捺.(nà)2.下列句子中,加点词语使用不恰当的一项是()A.就在公安部门紧锣密鼓准备端掉“红桃帮”这个流氓团伙时,那帮家伙仍为虎作伥....,毫不收敛,在他们的罪行簿上又添新恶。
B.当代诗坛颇不景气,想起唐宋诗词的成就,不禁让人产生今非昔比....的感觉。
C.法国大昆虫家法布尔,把科学和文学巧妙地结合起来,用富有诗意的笔触给人们描绘了一个绚丽多姿、光怪陆离....的昆虫世界。
五一期D.有人说他们两个是莫逆之交....,其实他们的感情一向就很好。
3.下列各项中,标点符号的使用符合规范的一项是()A.一个人既然在离开世界的时候,只能一无所有,那么早早脱身而去,不是更好吗?随它去。
B.据该上市部有关负责人透露,上市部今年的一项重要工作是全面贯彻落实证监会最近颁布的“上市公司信息披露管理办法”。
C.父爱应该受一定的原则支配并提出一定的要求,应该是宽容的,耐心的,不应该是咄咄逼人和专横的。
D.网络技术对艺术传统的冲击不容忽视,人们不得不思考,高科技的发展将导致艺术的沉沦,还是会迎来新时代的文艺复兴?4.下列句子中没有语病的一项是()A.彩虹-4无人机是目前国内挂载能力最强、飞行性能最优的无人机,它具有在侦察和对地攻击的能力方面超过美国同类型的“捕食者”无人机系统。
B.马未都先生创作了《醉文明》,既包括了传统与现代的碰撞,又不乏以史为鉴的反思,从物质文明的角度全方位诠释了中华文化的起承转合。
C.英国BAE系统公司近日研制出的新型液体防弹衣采用的是一种名为“剪切增稠液”的液体,在受到子弹冲击时会变硬,从而起到阻挡子弹的作用。
张家界市一中2014届高三年级第二次月考试题历 史(2013.10.30)本试卷由选择题、非选择题两部分组成,共27小题。
考试时量90分钟,满分100分。
第Ⅰ卷(选择题 共48分)本卷共24个小题,每小题2分,共48分。
在每小题给出的四个选项中,只有一项是符合题目要求的。
1.如图,我国古人把天上的星宿和地上的各个区域联系起来,说某地是某某星宿的分野,这就是所谓分野的观念。
星宿的分野,一般按列国来分配,如左表;后来又按各州来分配,如右表。
从左表到右表的变化主要反映了 A .‚天人感应‛的思想 B .中国古代的天文学成就 C .中央集权的加强 D .‚君权神授‛的思想2.据《中国陶瓷史>记载:大之进展。
”下列技术进步属于这一时期“例外者”之列的是A .秘色瓷的出现B .白瓷的烧制C .青花瓷的出现D .彩瓷的制作3.历史学家阎步克教授指出,侍从侍卫制度是中国政治制度中不可忽视的侧面。
亲贵子弟或文士通过担任皇帝侍从、侍卫获取皇帝信任,从而掌握权力,充作皇权扩张的爪牙。
而侍从、侍卫掌握的权力,有很大的随机性和临时性,处于“私”与“公”的摇摆之中。
官僚体制的公共性较强时,这种制度就会“公共化”,即从皇帝的私属侍卫发展为正式职官。
下列属于侍从侍卫制度实现了“公共化”的是A .秦代推行的郡县制B .汉武帝以宫中侍从侍卫组成的‚中朝‛C .隋唐确立的三省六部制D .北宋王朝派遣到地方的通判和转运使 4.《三府督护州县官吏》(《大唐六典》卷30)关于州士曹司士参军职掌条有云:“凡州界内 有出铜铁处,官未采者,听百姓私采。
若铸得铜及白,官为市取,如欲折充课役,亦听 之。
”此史料反映出唐朝时A .政府在官矿优先的前提下允许公私兼营B .民营矿业可私自铸币以补充市场需求C .市场上铸币金属的增多导致税制紊乱D .私营矿业出现了雇佣与被雇佣关系5.宋代,典卖土地、房屋的现象十分普遍,所谓“典卖”,是指将土地、房屋等不动产出典 给他人,收取一定的典价,在约定期限内原价赎回。
瓦房店高级中学2014届高三10月月考数学(文)试题本试卷分第Ⅰ卷、第Ⅱ卷两部分,共150分,考试时间120分钟;第Ⅰ卷(共80分)一、选择题:本大题共12小题,每小题5分,共60分,在每小题给出的四个答案中,只有一项是符合题目要求的,请把正确答案的字母填在答题卡中.1.已知{{},sin ,P Q y y R θθ=-==∈,则=PQ ( )A.∅B. {}0C. {}1,0-D.{-2.设i 是虚数单位,复数12aii+-为纯虚数,则实数a 为 ( ) A. 12- B. 2- C. 12D.23. 下列函数中周期为π且为偶函数的是( ) A .)22sin(π-=x y B. )22cos(π-=x y C. )2sin(π+=x y D .)2cos(π+=x y4. 设α、β 为两个不同的平面,l 、m 为两条不同的直线,且l ⊂α,m ⊂β,有如下的两个命题:①若α∥β,则l ∥m ; ②若l β⊥,则α⊥β.那么 ( )A .①是真命题,②是假命题B .①是假命题,②是真命题C .①②都是真命题D .①②都是假命题5. 在数列}{n a 中,n n ca a =+1(c 为非零常数),且前n 项和为k S n n +=3,则k 等于A .0B .-1C .1D .26. “a =1”是“函数()a x x f -=在区间[)+∞,1上为增函数”的( )A.充要条件B.必要不充分条件C.充分不必要条件D.既不充分也不必要条件7.已知正方形的四个顶点分别为)0,0(O ,)0,2(A ,)2,2(B ,)2,0(C ,直线x y 21-=与x 轴、y 轴围成的区域为M .在正方形OABC 内任取一点P ,则点P 恰好在区域M 内的概率为 ( ) A .12B .14 C .81 D .1618.四棱锥P ABCD -的顶点P 在底面ABCD 中的投影恰好是A ,其三视图如图所示, 则四棱锥P ABCD -的表面积为( )A.222S a =+ B.222S a =C.224S a = D.223S a = 9.已知1)21()(-+=x f x F 是R 上的奇函数,)1()1(...)2()1()0(f nn f n f n f f a n +-++++=,)(*∈N n 则数列}{n a 的通项公式为 ( )A.1-=n a nB.n a n =C.1+=n a nD.2n a n =10.已知F 1、F 1分别是双曲线)0,0(12222>>=-b a by a x 的左、右焦点,以坐标原点O 为圆心,|OF 1|为半径的圆与双曲线在第一象限的交点为P,则当△PF 1F 2的面积等于2a 时,双曲线的离心率为( )A. 3B. 2C.26D.2 11. 已知A ,B ,C 是平面上不共线的三点,O 为平面ABC 内任一点,动点P 满足等式[]OC OB OA OP )21()1()1(31λλλ++-+-=)0(≠∈λλ且R ,则P 的轨迹一定通过ABC ∆的A .内心B .垂心C .重心D .AB 边的中点12.已知函数)(x f 的定义域为)2,2(-,且,21,325412,22ln 32)(2⎪⎪⎩⎪⎪⎨⎧<<+--≤<-+-++=x x x x xx x x f 若32)]1([<+x x f那么x 的取值范围是 ( )A.12-<<-x 或10<<xB.1-<x 或0>xC.452-<<-xD.01<<-x二、填空题:本大题共4小题,每小题5分,共20分,13. 已知点)1,0(A 和椭圆1222=+y x 上的任意一点B ,则AB 最大值为 。
高一第一章试题高一数学备课组一.选择题(本大题共12小题,第小题5分,共60分.在每小题给出的四个选项中,只有一项符是合题目要求的.)1.设集合{}1->∈=x Q x A ,则( )A . A ∅∉B AC AD ⊆A 2、已知集合A 到B 的映射f:x →y=2x+1,那么集合A 中元素2在B 中对应的元素是: A 、2 B 、5 C 、6 D 、8 3.设集合{|12},{|}.A x x B x x a =<<=<若,A B ⊆则a 的范围是( ) A .2a ≥ B .1a ≤ C .1a ≥ D .2a ≤ 4.函数y )1111. (,) . [,) . (,) . (,]2222A B C D +∞+∞-∞-∞5.全集U ={0,1,3,5,6,8},集合A ={ 1,5, 8 }, B ={2},则集合)A B =U (C ( ) A .{0,2,3,6} B .{ 0,3,6} C . {2,1,5,8} D . ∅ 6.已知集合{}{}13,25A x x B x x A B =-≤<=<≤=,则( ) A. ( 2, 3 ) B. [-1,5] C. (-1,5) D. (-1,5]7.下列函数是奇函数的是( )A .x y =B .322-=x y C .21x y = D .]1,0[,2∈=x x y8π=( )A . 4B . 2 4π-C .2 4π-或4D . 4 2π- 9.设集合{}22≤≤-=x x M ,{}20≤≤=y y N ,给出下列四个图形,其中能表示以集合M 为定义域,N 为值域的函数关系的是( )10、已知f (x )=g (x )+2,且g(x)为奇函数,若f (2)=3,则f (-2)= 。
A 0B .-3C .1D .311、已知f (x )=20x π⎧⎪⎨⎪⎩000x x x >=<,则f [ f (-3)]等于A 、0B 、πC 、π2D 、912.已知函数()x f 是R 上的增函数, ()1,0-A ,()1,3B 是其图像上的两点,那么()1f x <的解集是( )A .()3,0-B .()0,3C .(][),13,-∞-⋃+∞D .(][),01,-∞⋃+∞二.填空题(本大题共4小题,每小题5分,共20分.把答案填在题中横线上.)13.已知25(1)()21(1)x x f x x x +>⎧=⎨+≤⎩,则[(1)]f f = .14.已知2(1)f x x -=,则 ()f x = .15. 定义在R 上的奇函数()f x ,当0x >时, ()2f x =;则奇函数()f x 的值域是 . 16.关于下列命题:①若函数y = x+1的定义域是{}0|≤x x ,则它的值域是}1|{≤y y ; ② 若函数x y 1=的定义域是}2|{>x x ,则它的值域是}21|{≤y y ; ③若函数2x y =的值域是}40|{≤≤y y ,则它的定义域一定是}22|{≤≤-x x ;其中不正确的命题的序号是_____________( 注:把你认为不正确的命题的序号都填上).高一第一章试题答卷高一数学备课组一、选择题答案表:本大题共12题,每小题5分,共60分二、填空题答案:本大题共有4小题,每小题5分,满分20分 13、 14、 15、 16、(第II 卷)三、解答题:本大题共4小题,共40分.题解答应写出文字说明,证明过程或演算步骤.17.已知全集{1,2,3,4,5,6,7,8}U =,2{|320}A x x x =-+=,{|15,}B x x x Z =≤≤∈,{|29,}C x x x Z =<<∈.(1)求()A B C ; (2)求()()U U C B C C .18.求函数f(x) =的定义域。
用行动让青春无悔;以拼搏令未来辉煌。
——2014级语文组祝你成功!成都石室中学2012~2013学年度上期高2014级10月月考语文试题试卷说明:1. 全卷满分150分,考试时间150分钟。
2. 请将1—4题、12—13题依次填涂在机读卡1—6题处,其余题目的答案用黑色笔答在答题卷对应位置上。
第I卷(选择题,共12分)一、积累与运用(35分)(一)(12分,每小题3分)1.下列词语中加点的字,读音全都正确的一组是()(3分)A.孝悌.(tì)少不更.事(gēng)弦.外之音(xuán)如火如荼.(tú)B.忖度.(dù)敷衍塞.责(sâ)博闻强识.(zhì)色厉内荏.(rěn)C.饿莩.(piǎo)不肖.之孙(xiào)便.宜行事(biàn)力能扛.鼎(gāng)D.杜撰.(zhuàn)拾.级而上(shâ)解.甲归田(jiě)怙恶不悛.(jùn)2.下列词语中,没有错别字的一组是()(3分)A.不经之谈甜言密语明察秋毫柳暗花明B.阴谋诡计孽根祸种波浪滔天未雨绸缪C.赔理道歉张皇失措走投无路融会贯通D.惴惴不安揭竿而起瞠目结舌通霄达旦3.下列各句中,加点成语使用不恰当的一句是()(3分)A.在她的性格中,既有心狠手辣的一面,如以阴险狡诈的方法逼死尤二姐等;也有爽朗大度的一面,以其谈笑自若....赢得了老少尊卑的喜悦。
B.当我们读到这些既琐碎、又显然经过作者艺术加工的细节时,一种在日常生活中领悟人生真谛的阅读快感便油然而生....。
C.《红楼梦》不仅思想深邃,在艺术上也叹为观止....,这首先表现在作者塑造人物注重表现人物性格的复杂性及其发展变化上。
D.这样一个精明干练的女人也自有其艰难窘迫之处,比如在贾府捉襟见肘....的衰落局面下,她以病体恃强支撑,终于在后40回中因心劳力拙而死去。
4.下列各句中,没有语病的一句是()(3分)A.为增强全体员工的文明服务意识,进一步提高职业道德素质,我们将采取强有力的措施,在本系统内广泛推行文明服务用语和服务忌语。
第Ⅰ卷一、阅读理解(15小题,每小题2分,共30分)AScientists are trying to make the deserts into good land again.They want to bring water to the deserts,so people can live and grow food.They are learning a lot about the deserts.But more and more of the earth is becoming desert all the time.Scientists may not be able to change the desert in time.Why is more and more land becoming desert,9 Scientists think that people make deserts.People are doing bad things to the earth.Some places on the earth don't get much rain.But they still don't become deserts.This is because some green plants are growing there.Small green plants and grass are very important to dry places.Plants don't 1et the sun make the earth even drier.Plants do not let the wind blow the dirt away.When a bit of rain falls,the plants hold the water.Without plants,the land can become desert more easily.1.We can know from the passage that deserts .A.never have any plants or animals in themB.can a11 be turned into good land before longC.are becoming smaller and smallerD.get very little rain and with few plants2.Small green plants are very important to dry places and .A.they make the earth richer B.they don't let the wind blow the soil awayC.they attract water D.they use little water3.Land is becoming desert little by little because .A.plants can't grow thereB.there is not enough rainC.people haven't done what scientists wish them to doD.scientists know 1ittle about the deserts4.After reading this passage,we learn that .A.plants can keep dry land from becoming desertB.it is good to get rid of the grass in the desertsC.all places without much rain will become desertsD.it is better to grow crops on dry land than to cut themBJimmy's father was a teacher and taught physics in a middle school and his mother worked in a shop.They lived a happy life until his parents died one night when suddenly an earthquake broke out.Luckily his sister took him to see their aunt in the city and they did not stay at home.Everything was destroyed in the earthquake and the two children got into trouble.Thanks to their aunt who was not rich enough,they grew up but they lived a hard life.His sister was so sad that she became a nun(修女).After he finished middle sch001,he was introduced to an owner of a hotel and began to work there.One day the young man fell to ground while he was cleaning a window on the second floor.One of his legs was broken and he had to be in hospital.He said to the nurse,“I'm a poor man,madam.Arrange a third-class ward(病房)for me,please.”“Can't anybody help you.9”“No,madam,”answered Jimmy.“I have only a sister.She's a nun and she's poor,too.”“I don't think so,”the nurse said angrily.“Nuns usually marry God.And God is the richest in the world,you know!”“Well,then,”Jimmy said with a smile.“Please arrange a first-class ward for me and post the bill to my brother-in-law.”8.Which of the following is TRUE?A.The nurse would arrange a third—class ward for Jimmy.B.Jimmy's sister became a nun because of her illness.C.The nurse would post Jimmy's bill to God.D.Jimmy had a rich brother-in-law.CWhy are so many people afraid to fail? Quite simply because we forget that failure is part of the human life.Every person is able to fight failure and finally succeed.Most parents try hard to prevent their children from knowing that they have failed.One way is to lower standards(标准).When a child finishes making a table,its mother describes it as “Fantastic”,though the table isn't good at all.Another way is to blame others.If John fails science,mother will say his teacher is unfair or foolish.There’s a problem with the two ways.It makes a child unprepared for life in the real world.Young children need to learn that no one can be best at everything,no one can win all the time and that it's possible to enjoy a game even when you don't win.A child often feels terrible,of course,when he is not invited to a birthday party,or is not chosen into a football team.But parents should not say“It doesn't matter”quickly.The young should be allowed to experience disappointment(失望)—and be helped to come out of it.Failure never gives people pleasure.It hurts both children and their parents.But it can be really good to your life when you learn to use it.You must 1earn to ask “Why did I fail? ”Don't blame someone else.Ask yourself what you did wrong,how you can improve.If someone else can help,don't be shy about asking them.Success just repeats what has been done.It is not as good a teacher as failure.You can learn how to give a good party from an unsuccessful one.9.How do most parents prevent their children from failure?A.They give them some presents.B.They don't tell them that they have failed.C.They don't blame other people.D.They help them to come out of failure.10.Which of the following does a person need to learn when he fails?A.It's impossible to enjoy a game if he misses it.B.He's the worst of all.C.It's natural not to win a game and no one can win all the time.D.He's shy about asking others for help.11.The writer of this article thinks that if a child fails,parents should .A.give him a quick prize B.advise him to repeat failureC.blame others D.encourage him to learn to use failure 12.The best title for this article may be .A.Learning from Failure B.Ways of Preventing FailureC.Reasons for Failure D.Getting Pleasure from FailureDRecently,I came across a poster that read,“If it wasn't for the last minute,a lot of things wouldn'tget done!”It may sound funny,but it is very true.Most of us,instead of starting a task ahead of time,put it off till the very last minute,and then rush through it.This results either in a badly done job or anincomplete one.There are people who always put off things for different reasons.Some lack the will to get started.Others cannot get started because they keep changing their plans.There are yet others who are lazy and want to put off hard work.The word to describe all such people is“disorganized”.Take a minute off to think about yourself:Do you get your books together and start sorting out badly jumbled(混乱的)notes just when the exams are round the corner and then burn the midnight oil trying to memorize 8 year's worth of material in a week? Do you go hunting for clean socks and uniforms only when it's time to leave for school?Lack of mental organization is unhealthy.You could lose trust,and worse still,good friends.Planning is important if you want to get ahead in life.It is easy enough if you follow these four simple steps:1.Plan your course of action:For instance,if you are studying for an exam,gather your books and notes well in advance,make a timetable for daily studies and set a day and time to start.2.Get started:Start studying on the day you've decided.3.Stick to your plans:Don't change your plans along the way,except when it is absolutely necessary.4.Never give it up less than your best:Study as hard as you can and leave the rest to luck.If you’ve done your best,success will certainly be yours!二、任务型阅读(七选五,共5小题,每小题2分,共10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
黄冈中学2013年秋高三年级十月月考英语试题命题:孙国瑛刘琦考试时间:2013年10月12日下午14:30-16:30本试卷共10页。
满分150分。
考试时间120分钟。
☆祝考试顺利☆注意事项:1.答题前,考生务必将自己的姓名、准考证号填写在试题卷和答题卡上,并将准考证号条形码粘贴到答题卡上的指定位置。
2.选择题每小题选出答案后,用2B铅笔把机读卡对应题目的答案标号涂黑;完成句子和书面表达题用0.5毫米黑色墨水签字笔答在题卡上相对应的答题区域内。
答在试题卷上无效。
3.考试结束,请将本试题卷和答题卡一并上交。
第一部分:听力(共两节,满分30分)做题时,先将答案划在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where is John probably now?A. In the hospital.B. At school.C. At home.2. What can we learn about the woman?A. She forgot lending the book.B. She lost her book.C. She finished her paper.3. Why was the man annoyed?A. A policeman stopped him.B. A speeding car ran past him.C. The driver attempted to overcharge.4. What relation are the speakers most probably to each other?A. Waiter and customer.B. Friends.C. Bank clerk and customer.5. What does the woman want to do?A. Find the computer room.B. Find a bulletin board.C. Get a computer.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白,每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
高2014级10月月考语文试卷(普高版)考试时间:150分钟总分:150分命题:高二语文备课组本试卷分第I卷(阅读题)和第Ⅱ卷(表达题)两部分,共150分。
考试时间150分钟。
两卷答案均应写在答题卡上。
第Ⅰ卷阅读题一、现代文阅读(9分,每小题3分)阅读下面的文字,完成1-3题。
①唐诗现在又开始让人感觉真切和亲切了,这是经历了和传统文化分别的痛苦之后才有的内心感觉。
经历了千年,唐诗还留下那么多,可以想象当时的创作盛况。
那么多唐诗显然不可能都是为了功名而写作的。
它是一种流行的东西,是社会场合的一种交流方式,更多时候就像现在的歌词。
王之涣和高适、王昌龄几个去歌台舞榭,听歌女唱他们的诗。
几轮下来,独独听不到王之涣的诗。
王之涣指着歌女中最美的一个,对在座的人说,如果她唱的不是他的诗,从此自己就不写诗了。
那个最美的歌女出场唱的果然是王之涣的《凉州词》“黄河远上”那一首。
这说明我们所景仰的唐诗,在当时很可能多是传唱的歌词。
当时写诗的人太多了,即使是李白,也可能就是在盛唐被歌唱了一些年。
在晚唐大概唱不过小李杜和温庭筠吧?杜甫的诗,可能文本一些,难以流行;杜甫的崇高地位,在他死去数十年后才建立,应该和唐诗本真的歌词性质有关。
②从这个意义上说,三十年来中国流行歌词的长盛不衰是值得欣喜的。
人在这个世界上生活着,悲欢冷暖,酸甜苦辣,都会感动在心,用心去歌唱。
歌唱的内容就是人的现实和梦想,譬如生命、爱情、母亲、故乡、离别、重逢、游历和从军等等。
这些在唐诗里也都写遍了。
李谷一首唱的《乡恋》,对于故乡的依恋和怀念,和李白的《静夜思》是一样的精致平实。
谷建芬作曲的《烛光里的妈妈》和孟郊的《游子吟》可以匹敌,《思念》和李商隐的无题诗,美感是相通的。
还有北京奥运会主题歌《我和你》和王勃的“海内存知己,天涯若比邻”相比,也是不见逊色的。
③把现在的歌词和唐诗比较,只是想说明两者是同样的东西。
尽管不在同一时空,两者的文化身份是一样的。
虽然两个时代的作品无法混淆,同样的留别的诗,徐志摩的《再别康桥》和罗大佑的《追梦人》就不一样。
雅安中学2022——2021学年高二班级上期月考(10月)历史试题(命题人:凌珑芸审题人:骆正学)本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
满分100分,考试时间50分钟。
考试结束后,将答题卷和机读卡一并收回。
第Ⅰ卷(选择题,48分)1.四川省内历史遗存丰富,人文景观众多。
图1中,可以体现儒家伦理纲常思想的是()图1A.①④ B.②④ C.①② D.③④【答案】A考点:百家争鸣。
本题考查猎取材料信息、调用所学学问的力量,②体现的是佛教思想,排解;③中的八卦图体现的是道家思想,排解;①④都体现儒家伦理道德,故答案为A项。
2.孔子的思想核心是“仁”,强调以德治民,疼惜民力,做人要“恭、宽、信、敏、惠”;孟子主见实行“仁政”,认为人人皆有“羞恶之心”、“敬重之心”;荀子也主见“仁义”,要“以德服人”,“人要向善”。
始终贯穿上述思想的一条主线是( )A.主见从个人的道德修养入手建设一个礼乐文明的抱负社会B.人不分贫富、贵贱、智愚、善恶,都有入学受训练的资格C.人皆有“恻隐之心”“羞恶之心”“敬重之心”“是非之心”D.通过学习和实施法制,可以使小人变君子,一般人变圣人【答案】A考点:春秋战国儒家思想的形成与进展。
依据材料中可知,从孔子的“仁”到孟子的“仁政”再到荀子的“仁义”,这个过程中的共同点都是强调“仁”,人的修养,故选A。
B项是孔子的有教无类的训练思想;C项是孟子的思想;D项是荀子的留意法治思想。
3.在对天、君、民关系的生疏上,原始儒学以孟子为例,主见民贵君轻,董仲舒主见“屈民以伸君,屈君以伸天”。
材料表明,董仲舒()A.继承了原始儒学的全部宗旨B.背离了原始儒学的民本思想C.背离了原始儒学的仁爱思想D.摒弃了原始儒学的德治主见【答案】B考点:汉代儒学。
本题考查同学解读史料猎取信息的力量。
民贵君轻体现了以人为本的思想,而董仲舒的“屈民以伸君”明显是留意君主,违反了原始儒家的民本思想,故本题选择B项;A错在“全部”;C、D中信息在材料中均没有体现。
浙江省杭州市西湖高级中学2014-2015学年高二10月月考英语试题第一部分:听力(共两节,满分10分)第一节(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What will the man do probably?A. Cheer for his team.B. Try to get some tickets.C. Go to the Liverpool match.2. Why was Carl at the hospital?A. He was going to meet a doctor.B. He was going to visit his daughter.C. He was looking after his wife.3. Where are the speakers?A. At the airport.B. At a cinemaC. In a shopping center.4.Why does Helen look great?A. She’s been exercising.B. She’s rested for two days.C. She’s just came back from vacation.5. What does the man ask the woman to do?A. To stop here for a short while .B. To drive along a quiet street.C. To park the car elsewhere.第二节(共5小题,每小题1分,满分5分)听下面5段对话或独白。
每段对话后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
重庆十一中高2014级10月月考物理试题卷
一、单项选择题(每小题4分,共48分)
1、如图所示,一物体静止在斜面上,关于它所受各力的相互关系,下列说法正确的是( )
A .它受到的重力与弹力大小相等
B .它受到的静摩擦力的大小等于重力沿斜面向下方向上的分力
C .它受到的弹力与摩擦力的合力大于物体受到的重力
D .它受到斜面作用力的合力方向垂直于斜面向上
2.许多教室里都悬挂一磁性小黑板,小铁块被吸在小黑板上可以用于“贴”通知或宣传单,关于铁块与黑板受到的力,下列说法正确的是 ( )
A .铁块受到三个力的作用
B .铁块与黑板间在水平方向存在两对作用力与反作用力
C .铁块受到的磁力与受到的弹力是一对作用力与反作用力
D .铁块受到的磁力大于受到的弹力才能被吸在黑板上
3.“蹦极”是一项非常刺激的体育运动。
某人身系弹性绳自高空P
弹性绳的原长位置,c 是人所到达的最低点,b 是人静止悬吊着时的平衡位置,人
在从P 点下落到最低点c 点的过程中(不计绳的的质量和空气阻力),则( ) A .人在Pa 段做自由落体运动,处于平衡状态
B .在ab 段绳的拉力小于人的重力,人处于超重状态
C .在bc 段绳的拉力大于人的重力,人处于超重状态
D .在c 点,人的速度为零,处于平衡状态
4.如图所示,重力为10N 的物体放在水平地面上,与水平地面间动摩擦因数为0.5.今用F = 20N 、与水平方向间的夹角θ=37°的推力作用于物体,sin37°=0.6,cos37°=0.8,则物体所受摩擦力大小为( )
A .8 N
B .11 N
C .15 N
D .16 N
5.质点在合力F 的作用下,由静止开始做直线运动,其合力随时间变化的图象如图所示,则有关该质点的运动,以下说法不正确的是( )
A .质点在前2秒内速度在均匀变化,后2秒内加速度在均匀变化
B .质点在后2秒内的加速度和速度越来越小
C .质点在后2秒内的加速度越来越小,速度越来越大
D .设2秒末和4秒末速度分别是V 2和V 4,则质点在后2秒
内平均速度大于2
42v v 6.一卫星绕某一行星表面附近做匀速圆周运动,其线速度大小为v 。
假设宇航员在该行星表面上用弹簧测力计测量一质量为m 的物体重力,物体静止时,弹簧测力计的示数为N ,已知引力常量为G ,则这颗行星的质量为( )
A .2GN mv B.4GN mv C .2Gm Nv D.4Gm Nv
7.一根轻杆一端固定,另一端连结一个小球在竖直平面内做圆周运动,下列说法不正确的是( )
A. 小球若能作完整的圆周运动,经过最高点的最小速度为0
B .小球在最低点时,受到杆对小球的作用力最大且方向竖直向上
C .小球在运动过程中有时可以不受到杆的作用力
D .小球在运动过程中所受合外力的方向均指向圆心
8.如图所示,竖直圆筒内壁光滑,半径为R ,上部侧面A 处开有小口,在
小口A 的正下方h 处亦开有与A 大小相同的小口B 。
小球从小口A 沿切线方向
水平射入筒内,使小球紧贴筒内壁运动,要使小球从B 口处飞出,小球进入A
口的最小速率v0为( )
A .
h g R 2/π B .h g R /2π C .g h R /2π D .h g R /2π 9.如图所示,竖直放置在水平面上的轻弹簧上放着质量为2kg 的物体A ,处
于静止状态。
若将一个质量为3kg 物体B 竖直向下轻放在A 上的一瞬间,g 取
10m/s 2,则B 对A 的压力大小( )
A 、30N
B 、 0
C 、15N
D 、12N
10.一带有动力装置的小车质量为M ,沿倾角为θ的光滑斜面向下做匀加速
运动,在小车的支架上用细线系一质量为m 的小球,如图所示,系小球的线恰好
成水平状态,则( )
A .小车的加速度是gsinθ
B .细线对小球无拉力
C .小车的加速度是θ
sin g D .动力装置产生的牵引力为θ
sin )(g m M + 11.物体A 放在物体B 上,物体B 放在光滑的水平面上,已知m A =6 kg 、m B =2 kg ,A 、B 间动摩擦因数μ=0.2,如图所示。
若现用一水平向右的拉力F 作用于物体A 上,取g=10 m/s 2,则下列说法正确的是( )
A .当拉力F<12 N 时,A 静止不动
B .当拉力F>12 N 时,A 相对B 滑动
C .当拉力F=16 N 时,B 受A 的摩擦力等于4 N
D .无论拉力F 多大,A 、B 都受到滑动摩擦力的相互作用
12.如图所示,绳子OA 是一根遵循胡克定律的软绳,上端固定在天花
板上的O 点,另一端与静止的水平地面上的物体相连,开始时绳子位于竖
直位置,这时绳长为自然长度为L 0的两倍,B 为紧挨着绳子的水平方向的
光滑钉子,B 到O 点的距离等于L 0;现用水平力F
向右拉物体,使物体沿
图
7
地面向右滑动,设物体与地面间的动摩擦因数为μ恒定,绳子一直处于弹性限度内,则物体受到的摩擦力()
A. 逐渐减小
B. 逐渐增大
C. 保持不变
D. 先减小后增大
二、实验题(每空2分,共16分)
13.某学生在做“研究平抛物体运动”的实验中,忘记记下小球
做平抛运动的起点位置O,A为物体运动一段时间后的位置,根据
图所示,求出物体做平抛运动的初速度为m/s,小球经过B
点时的速度为m/s。
(g取10 m/s2)。
14.物理小组在一次探究活动中测量滑块与木板之间的动摩擦
因数。
实验装置如图,一表面粗糙的木板固定在水平桌面上,一端
装有定滑轮;木板上有一滑块,其一端与电磁打点计时器的纸带相
连,另一端通过跨过定滑轮的细线与托盘连接。
打点计时器使用的
交流电源的频率为50 Hz。
开始实验时,在托盘中放入适量砝
码,滑块开始做匀加速运动,在纸带上打出一系列小点。
⑴下图给出的是实验中获取的一条纸带的一部分:0、1、
2、3、4、5、6、7是计数点,每相邻两计数点间还有4个打
点(图中未标出),计数点间的距离如图所示。
根据图中数据
计算打计数点3时滑块的速度是m/s,滑块的加速度是
m/s2 (保留三位有效数字)。
⑵回答下列两个问题:
为测量动摩擦因数,下列物理量中还应测量的有。
(填入所选物理量前的字母)A.木板的长度L B.木板的质量m1C.滑块的质量m2
D.托盘和砝码的总质量m3E.滑块运动的时间t
测量选定的物理量时需要的实验器材是。
⑶滑块与木板间的动摩擦因数 =(用被测物理量的字母表示,重力加速度为g)。
与真实值相比,测量的动摩擦因数(填“偏大”或“偏小” )。
三、计算题(要求写出必要的文字说明、方程式和重要的演算步骤,只写出最后结果的不能得分)
15.如图所示,人重G1=300N,物体重G2=200N,地面
粗糙。
当人用F=100N的力竖直向下拉绳子时,人和物无水平方
向滑动。
求:⑴人对地面的弹力和地面对物体的弹力?⑵固定定
滑轮的轻杆受到弹力的大小
16. 如图,光滑的水平面上有A 、B 、C 三个点,其中B 是AC 的中点。
现有一物块静止在B 处,给物块施加一水平向右的恒力F 1,经时间t (数值未知)后物体运动到C 点时速度v C =12m/s ,此时去掉力F 1同时施加另一水平向左的恒力F 2,经时间2t 后物体运动至A 处,求:
⑴F 1/F 2=? ⑵物体运动至A 处时的速度值。
17.如图所示,在高出水平地面h =1.8m
料连接成一体的薄板A ,其右段长度l 1=0.2m 且表面光滑,左段表面粗糙。
在A 最右端放有可视为质点的物块B ,其质量m =1kg 。
B 与A 左段间动摩擦因数μ=0.4。
开始时二者均静止,现对A 施加F=20N 水平向右的恒力,待B 脱离A (A 尚未露出平台)后,将A 取走。
B 离开平台后的落地点与平台右边缘的水平距离x =1.2m 。
(取g=9.8m/s 2)求:
⑴B 离开平台时的速度v B 。
⑵B 从开始运动到刚脱离A 时,B 运动的时
间t B 和位移x B ⑶A 左端的长度l 2
18.如图所示,顺时针转动的水平传送带AB 与水平桌面CD 在BC 处无缝连接,水平桌面右侧有一竖直放置的光滑轨道PN ,其形状为45°的半径R=0.8m 的圆弧,MN 为其竖直直径,P 点到桌面的竖直距离也是R 。
传送带以a
=1m/s 2的加速度匀加速运动,当其速度为v 0=2m/s 时将一个质量m=2kg 的物块无初速地放在A 点,物块与传送带间的动摩擦因数μ=0.3,物块过B 点后其位移与时间的关系为X =6t -2t 2,物块飞离桌面后由P 点沿切线落入圆轨道。
g=10m/s 2,求:
⑴物块过D 点时的速度 ⑵BD 间的水平距离。
⑶物块过N 点时,轨道受到的压力 ⑷传送带的长度和物块到达P 点的时间。