四川省雅安市2014-2015学年高一下学期期末考试英语试题(PDF版)
2014-2015第一学期期末考试高一英语期末试卷

2014-2015第一学期期末考试高一英语期末试卷本试卷分Ⅰ卷(选择题)和Ⅱ卷(非选择题)两部分。
满分100分,考试时间100分钟。
第I卷(选择题共70分)注意事项:1.答卷前,务必就自己的考号、姓名等信息正确填涂在II卷密封区和机读卡相应位置上。
2.I卷的每小题选出答案后,请填涂在机读卡上,答在I卷上无效。
第一部分:听力(共两节,满分20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秒钟的时间来回答有小题和阅读下一小题。
每段对话仅读一遍。
1.When’ s the woman doing?A. Asking the way.B. Asking the time.C. Asking the price.2.Who will go to Canada?A. Susan and Peter.B. Susan and Jack.C. Peter and Jack.3.What does the woman ask the man to do?A. To repair the washing machine.B. To take a look at the washing machine.C. To call someone to repair the washing machine.4.Where are the two speakers talking?A.In a shop. B.In a library.C.In a hospital.5.How does the man feel?A.Curious.B.Surprise.C.Worries.第二节(共15小题,每小题1分,满分15分)听下面5段对话或独白。
每段对话或读白后有几个小题,从题后所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
高中英语真题-2014~2015学年第一学期期末考试试卷

高中英语真题:2014~2015学年第一学期期末考试试卷注意事项:1. 请在答题纸上作答,在试卷上作答无效。
2. 本试卷分第一卷和第二卷两部分,共120分,考试时间100分钟。
第一卷第一部分: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)阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
AYears ago there was a group of kids who would hang around at some local ponds(池塘) in the woods near their houses in Warwick, Rhode Island. In summer they caught frogs and fish. When winter arrived they couldn’t wait to go skating. Time passed, and the ponds becam e the only open space for the kids to enjoy themselves in that n eighborhood.One day a thirteen-year-old boy from this group of kids read in the local newspaper that a developer wanted to fill in the ponds and build over a hundred small houses called apartments. So the boy went door to door and gathered more than two hundred signatures to stop the dev elopment. A group of citizens met and decided to support him. At the meeting of the town planning organization,the boy was quite nervous at first and spoke very softly. But wh en he saw the faces of his friends and neighbors in the crowd a nd thought about what was happening to their favorite ponds,his voice grew louder. He told the town officials that they should speak for the citizens. He also insisted that they should leave e nough space for children. A few days later,the developer stopped his plan.Nine years later, when that teen was a senior in college, he was informed that the developer was back with his proposal to build apartments. Now twenty-two years old, he was studying wetlands ecology. He again app eared before the town planning organization. This time as an ex pert, he used environmental protection laws to explain restrictio ns on development in and around wetlands and the knowledge of wetlands ecology to help to improve the development. Finally some apartments were built, but less than half the number thedeveloper wanted. The ponds where those kids used to hang ar ound were protected by a piece of natural land, and are still there today.1. The kids liked to ___________ at the local ponds in winter.A. make a snowmanB. throw snowballsC. go skatingD. go skiing2. The boy thought that the town officials should be __________ _ for the citizens.A. responsibleB. modestC. anxiousD. thankful3. Which statement is true according to the passage?A. The apartments were built as the developer had planned.B. The grown-up boy helped to protect the wetlands as an expert.C. The developer stopped the boy’s plan at the meeting years ago.D. The ponds were filled in and some apartments were built o n them.4. The underlined word “restrictions” in the last paragraph proba bly means________.A. rulesB. plansC. advantagesD. limitationsBA desert is a beautiful land of silence and space. The sun shine s, the wind blows, and time and space seem endless. Nothing i s soft. The sand and rocks are hard, and many of the plants ev en have hard needles instead of leaves.The size and location of the world's deserts are always changin g. Over millions of years, as climates change and mountains ris e, new dry and wet areas develop. But within the last 100 years , deserts have been growing at a frightening speed. This is partl y because of natural changes, but the greatest makers are hum ans.Humans can make deserts, but humans can also prevent their growth. Mauritania is planting a similar wall around , the capital. puts a thin covering of oil on sandy areas and plants trees. Th e oil keeps the water and small trees in the land, and men on m otorcycles keep the sheep and goats away. The USSR and are building long canals to bring water to desert areas.5.In this passage, the underlined word “needles” refers to ___ _____.A.small, thin pieces of steelB.long, thin pieces of branchesC.thin, hard, pointed leafD.small, thin pieces of sticks6.Which of the following is NOT true?A.The greatest desert makers are human beings.B.There aren't any living things in the deserts.C.Deserts have been changing quickly.D.The size of the deserts is always growing.7.People in some countries are fighting a battle against _____ ___.A.the growth of desertsB.desert climateC.natural changesD.the disappearance of desert8.What does the author want to tell us?A.Deserts are lands of hardness, silence and space.B.The deserts of the world are changing from time to time. C.Man is to take measures to control the growth of deserts. D.Deserts have grown at a fast pace in the past 10 years.CThroughout July 1945, the Japanese mainland, from Tokyo on Honshu northward to the coast of , were bombed as if an invasi on were about to take place. In fact, something far more threatening was at hand, as the Americans were telling Stalin at Potsd am.(伯茨坦)In 1939 physicists in the United States had learned of experime nts in showing the possibility of atomic power and understood t he coming damage of an atomic bomb. On August 2, 1939, Alb ert Einstein warned President Roosevelt of the danger of Nazi Germany’s advances in development of the atomic bomb. Even tually, the U.S. Office of Scientific Research Development was created in June 1941 and given combined responsibility with th e War Department in the Manhattan Project to develop a nuclea r bomb. After four years of research and development efforts, a n atomic device was set off on July 16, 1945, in a desert area at , , producing an explosive power equal to that of more than 15, 000 tons of TNT. Thus, the atomic bomb was born. Truman, the new U.S. president, believed that this terrible object might be u sed to defeat Japan in a way less costly of lives than an ordina ry invasion of the Japanese homeland. ’s unsatisfactory reply to the Allies’ Potsdam Declaration decided the matter.On August 6, 1945, an atomic bomb, carried from Tinian Island in the Mariana in a specially equipped B-29 was dropped on Hiroshima, at the southern end of Honshu. The combined heat and explosion destroyed everything in the e xplosion’s immediate neighbourhood , produced fires that burned out almost 4.4 square miles completely, and killed between 7 0,000 and 80,000 people, in addition to injuring more than 70,0 00 others. A second bomb dropped on on August 9, killed betw een 35,000 and 40,000 people, injured a like number and ruined 1.8 square miles.9. What is the main idea of the passage?A.An atomic bomb was dropped on Hiroshima and .B.After research and development efforts, an atomic bomb wa s born.C.An invasion was about to take place with the use of the ato mic bomb.D.The birth and use of the atomic bomb ended the Second W orld War.10. Albert Einstein warned Roosevelt of _________.A. Nazi Germany’ success in making an atomic bombB. the possibility of atomic power from Nazi GermanyC. Japan’s unsatisfactory reply to the Allies’ Potsdam Declarati onD. destruction of everything from the explosion of the atomic bo mb11.What made the U.S. decide to drop the atomic bombs over ?A. Truman’s becoming the president of the .B. The great destruction power of the atomic bomb.C. Reducing the cost of its lives.D. Not being content with ’s reply.12. How many people were killed by the two bombs dropped in ?A. Between 105,000 and 120,000 people.B. Between 35,000 and 40,000 people.C. Between 70,000 and 80,000 people.D. Between 140,000 and 150,000 people.DA safari park is a park in which wild animals are kept. They are mainly located in east or central Africa. They often occupy a ver y wild area, with mountains and rivers. To visit the park and loo k at the animals, people have to drive around in a car for a few of hours because the park is huge.In there is a safari park, which contains all sorts of wild anima ls like lions, elephants, rhinoceroses, zebras, wild pigs, deer an d giraffes.There is a wild road leading through the park, but nobody is p ermitted to walk on the road. Anyone traveling in the park has t o go in a car because wild animals may fiercely attack people. From the car he may see almost every types of African wildlife.Some of these are getting rare because people kill them for vari ous reasons. For example, rhinoceroses are killed for their horn s, which are used in traditional Chinese medicines for colds and headaches. Perhaps they will be seen only in museums and bo oks one day.Travels may purchase food for the animals. They can feed th em when they tour the park. Of course, they should not feed the m in a close distance because the wild animals may attack peo ple. In addition, they should only give proper food to the animal s.A traveler may carry a gun with him in his journey. The gun is given to him by the government. However, it is not used for hun ting. In fact, a seal(封条) is fixed to it. The traveler may fire at a wild beast to defend himself in case he is attacked. However, he has to prove to the government that he has been attacked and that he has not fired at a harmless animal.13. When travelers feed the animals, they should _________.A. give nutritious foodB. stay away from the animalsC. stand closeD. use tools14. The government knows whether the gun is fired by the trave ler or not by ___________.A. checking the sealB. hunting the animalsC. following the travelerD. observing the traveler15. What is the best title of this passage?A. Protecting Wild AnimalsB. Traveling inC. A Safari Park in South AfricaD. Wild Animals in第二节 (共5小题; 每小题2分, 满分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,并在答题卡上将该项涂黑。
江苏省盐城市2014-2015学年高一下学期期末考试英语试卷(Word版含答案)

2014/2015学年度高一年级第二学期期终考试英语试题第一卷(选择题,共85分)第一部分听力(共两小节,满分20分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
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秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the woman suggest doing?A. Repairing the telephone.B. Surfing the Internet.C. Cooking at home.2. What did the man do?A. He bought a computer.B. He set up a company.C. He hunted for a new job.3. What are the speakers talking about?A. A fire.B. A flood.C. An earthquake.4. How many people will come to the party?A. 15.B. 135.C. 150.5. Why does the woman mention her dinner guests?A. To ask the man to join them.B. To suggest politely the man leave.C. To invite the man to have another drink.第二节(共15小题;每小题1分,满分15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。
听每段对话或独白前,你将有时间阅读各小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
【推荐下载】2014四川省雅安中学高一英语期中考试

2014 四川省雅安中学高一英语期中考试
2014 高一语文下册期末考试试题试卷 由为您提供的四川省雅安中学高一英语期中考试,希望给您带来帮助! 第Ⅰ卷 第一部分:听力(共两节,满分 30 分) 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. At what time will the speakers get there for the sports meeting? A. 7:45 B. 8:00 C. 8:15 2. Why is the woman studying English? A. She wants to find a good job.
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C. Go to a quiet and beautiful place. 请听第 9 段材料,回答第 15 至 17 题。 15. What does the woman mainly question the man on? A. Food and drink. B. Work and rest. C. Exercise and sleep. 16. What does the man think before going to bed? A. Tea. B. Milk. C. Coffee. 17. What is the womans job? A. A teacher. B. A doctor C. A salesperson. 请听第 10 段材料,回答第 18 至 20 题。 18. What will the people do tomorrow morning? A. Have a meeting. B. Watch a performance. C. Go sightseeing(观光). 19. Why does the chairman have to change todays plan? A. The first speaker got food poisoning.
四川省绵阳市南山中学2014-2015学年高一下学期4月月考试题_英语_Word版及答案

2015年4月绵阳南山中学2015年春季高2017界4月月考英语试题苟素清王强第一卷第一部分:听力(20X1)第一节(共5小题;每小题1分,共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秒中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 does the conversation take place?A. In a schoolB. In a restaurantC. In a post office2. Who wore the overcoat last week?A. JillB. ClairC. Jill’s sister3. What was the homework for Friday?A. Copying the notesB. doing some readingC. Writing an essaying4. How much should the man pay?A. Nine dollarsB. six dollarsC. three dollars5. What will the girl do first?A. Watch TVB. Have dinnerC. Do homework第二节(共15小题;每小题1分,共15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。
听完每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第六段材料,回答第6、7题。
6. Why doesn’t the man run?A. He hates running.B. He hurt his leg.C. He can’t find time.7. What will Jenny do first?A. Take a showerB. Have a classC. Run for an hour听第七段材料,回答第8至10题。
四川省雅安中学2014-2015学年高二下学期开学考试英语试题(有答案)AqllKw

第一部分听力(共两节,满分30分)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. when will the first performance start?A. At 7:20.B. At 7:30.C. At 7:15.2. which bus does the man probably want to take?A. No. 15.B. No. 36.C. No. 63.3. What does the man want to do?A. He wants the woman to call him.B. He wants to call a friend.C. He wants to charge his phone.4. What does the boy want to buy?A. Some candies.B. A book.C. A pen.5. What are the speakers talking about?A. The payment of tax.B. The price of cigarettes.C. The danger of smoking.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。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听下面一段对话,回答第6和第7两个小题。
6. What is the man’ s brother doing now?A. Repairing the window.B. Leaving for the office.C. Working in his office.7. Why is the man climbing through the Window?A. He has locked his key in the house.B. He has given his key to his brother.C. He has lost his key to the house.听下面一段对话,回答第8和第9两个小题。
四川省雅安中学2014-2015学年高一下学期期中考试化学试卷Word版含答案
雅安中学2014—2015学年高一年级下期期中理科综合(化学部分) 试 题本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
满分100分。
考试结束后,将答题卷和机读卡一并收回。
注意:理科综合化学部分机读卡填涂15—28第Ⅰ卷(选择题,共42分)1、 下列说法错误的是 ( ) A .双原子单质分子中的共价健一定是非极性键 B .在共价化合物中一定含有共价键C .含有离子键的化合物一定是离子化合物D .含有共价键的化合物一定是共价化合物 2、某3子):则有关这三种原子的叙述中正确的是( )A .它们是不同元素的原子B .它们单质的化学性质相同C .这三种原子具有不同的核电荷数D .这三种原子具有相同的质量数3、下列有关原电池的叙述中正确的是( ) A .把电能转变为化学能的装置B .活泼金属做正极,不活泼金属或非金属做负极C .外电路中电子从负极流向正极D .正极发生氧化反应 4、已知25 ℃、101 kPa 下,石墨、金刚石燃烧的化学方程式分别为:C(石墨) + O 2(g) = CO 2(g),1 moL C(石墨) 完全燃烧放热393.51 kJ ;C(金刚石) + O 2(g) = CO 2(g),1 moL C(金刚石) 完全燃烧放热 395.41 kJ 。
据此推理所得到的下列结论中,正确的是( )A .金刚石比石墨稳定B .石墨转化为金刚石是物理变化C .石墨的能量比金刚石的能量高D .由石墨制备金刚石一定是吸热反应 5、根据右图提供的信息,下列所得结论正确的是( )A .该反应为吸热反应B .该反应向外界放出的热量为E 1-E 3C .该反应一定可以设计成为原电池D .该反应向外界放出的热量为E 2-E 36、下列有关化学用语表示正确的是( )A .HClO.中子数为20的氯原子:2017Cl:: ClCl C Cl ⋅⋅⋅⋅能量C.4CCl的电子式:D.Cl-的结构示意图:下列说法正确的是()A.由Q与Y形成的化合物中只存在离子键B.Z与X之间形成的化合物具有还原性C.由X、Y、Z三种元素形成的化合物,一定是共价化合物D.Y与W形成的化合物中,Y显负价8、现有如下各种说法:①在水中氢、氧原子间均以化学键相结合②硅晶体熔化需要克服分子间作用力③离子键是阳离子和阴离子的相互吸引力④根据电离方程式HCl===H++Cl-,判断HCl分子里存在离子键⑤有化学键断裂的变化属于化学变化。
2014-2015年四川省雅安市高一下学期数学期末试卷与解析PDF
2014-2015学年四川省雅安市高一(下)期末数学试卷一、选择题(本大题共10小题,每小题5分,共50分)1.(5分)已知0<α<π,且tanα=1,则cosα等于()A.﹣B.C.﹣D.2.(5分)已知数列{a n}满足a1=1,a n+1=a n,n∈N*,则a n=()A.a n=()n﹣1B.a n=()n C.a n=()n﹣1 D.a n=()n3.(5分)在△ABC中,内角A、B、C的对边分别为a、b、c,若A=135°,B=30°,a=,则b等于()A.1 B.C.D.24.(5分)已知等比数列{a n}的公比q=﹣,则等于()A.﹣ B.C.3 D.﹣35.(5分)在△ABC中,若|+|=||,则△ABC一定是()A.钝角三角形B.锐角三角形C.直角三角形D.不能确定6.(5分)同时具有性质“①最小正周期是π,②图象关于直线x=对称”的一个函数是()A.y=sin(+)B.y=cos(x+)C.y=cos(2x﹣)D.y=sin(2x﹣)7.(5分)已知等差数列{a n}的前n项和为S n,满足a1=6,a3=4,则下列结论错误的是()A.S6和S7均为S n的最大值 B.a7═0C.公差d<0 D.S9>S58.(5分)在四边形ABCD中,=(2,4),=(﹣6,3),则该四边形的面积为()A.3 B.2 C.5 D.159.(5分)已知,是两个单位向量,且.若点C在∠AOB内,且∠AOC=30°,(m,n∈R),则=()A.B.3 C.D.10.(5分)在锐角三角形中,a、b、c分别是内角A、B、C的对边,设B=2A,则的取值范围是()A.(﹣2,2)B.(0,2) C.(,2)D.(,)二、填空题(本大题共5小题,每空5分,共25分)11.(5分)在△ABC中,tanA=,则tan(A+)的值为.12.(5分)已知等比数列{a n}的公比为正数,且a1=2,4a3•a9=a52,则a2=.13.(5分)已知数列{a n}通项为a n=ncos(nπ),n∈N*,则a1+a2+a3…+a2016=.14.(5分)在△ABC中,内角A,B,C的对边分别为a,b,c,若3a=5b,且sinA 是sinB与sinC的等差中项,则角C=.15.(5分)如图,设α∈(0,π),且α≠,当∠xOy=α时,定义平面坐标系xOy为α一仿射坐标系,在α仿射坐标系中,任意一点P的斜坐标这样定义;e1,e2分别为与x轴、y轴方向相同的单位向量,若=xe1+ye2,则记为=(x,y),那么在以下的结论中,正确的有.(填上所有正确结论的序号)①设=(m,n),=(s,t),若=,则m=s,n=t;②设=(m,n),则||=;③设=(m,n),=(s,t),若∥,则mt﹣ns=0;④设=(m,n),=(s,t),若⊥,则ms+nt=0.三、解答题(本大题共6小题,共75分)16.(12分)已知平面直角坐标系中,点O为原点,A(﹣3,﹣4),B(5,﹣12),若=+,=﹣.(Ⅰ)求点C和点D的坐标;(Ⅱ)求•.17.(12分)已知等差数列{a n}满足a2=2,a5=8.(1)求{a n}的通项公式;(2)各项均为正数的等比数列{b n}中,b1=1,b2+b3=a4,求{b n}的前n项和T n.18.(12分)在△ABC中,a、b、c分别是角A、B、C的对边,且=﹣.(1)求角B的大小;(2)若b=,a+c=4,求a的值.19.(12分)某同学在一次研究性学习中发现,以下五个式子的值都等于同一个常数.sin245°+cos275°+sin45°cos75°,sin236°+cos266°+sin36°cos66°.sin215°+cos245°+sin15°cos45°,sin2(﹣15°)+cos215°+sin2(﹣15°)cos15°,sin2(﹣45°)+cos2(﹣15°)+sin(﹣45°)cos(﹣15°).(1)试从上述五个式子中选择一个,求出这个常数;(2)根据(1)的计算结果,将该同学的发现推广为三角恒等式,并证明你的结论.20.(13分)函数y=Asin(ωx+φ)(A>0,ω>0,|φ|<)的一段图象如图所示.(1)求函数y=f(x)的解析式;(2)将函数y=f(x)的图象向右平移个单位,得到y=g(x)的图象,求直线y=与函数y=f(x)+g(x)的图象在(0,π)内所有交点的坐标.21.(14分)(理)已知函数f(x)对任意x∈R都有f(x)+f(1﹣x)=2.(1)求f()和f()+f()(n∈N*)的值;(2)数列f(x)满足a n=f(0)+f()+f()+…+f()+f(1),(n∈N*)求证:数列{a n}是等差数列;(3)b n=,S n=,T n=b12+b22+b32+…+b n2,试比较T n与S n的大小.2014-2015学年四川省雅安市高一(下)期末数学试卷参考答案与试题解析一、选择题(本大题共10小题,每小题5分,共50分)1.(5分)已知0<α<π,且tanα=1,则cosα等于()A.﹣B.C.﹣D.【解答】解:∵0<α<π,且tanα=1,∴α=,则cosα=cos=,故选:D.2.(5分)已知数列{a n}满足a1=1,a n+1=a n,n∈N*,则a n=()A.a n=()n﹣1B.a n=()n C.a n=()n﹣1 D.a n=()n【解答】解:∵数列{a n}满足a1=1,a n+1=a n,∴=,则数列{a n}是首项a1=1,公比q=的等比数列,则a n=a1q n﹣1=1×()n﹣1=()n﹣1,故选:A.3.(5分)在△ABC中,内角A、B、C的对边分别为a、b、c,若A=135°,B=30°,a=,则b等于()A.1 B.C.D.2【解答】解:∵A=135°,B=30°,a=,∴由正弦定理=得:b===1.故选:A.4.(5分)已知等比数列{a n}的公比q=﹣,则等于()A.﹣ B.C.3 D.﹣3【解答】解:由题意得,==﹣3,故选:D.5.(5分)在△ABC中,若|+|=||,则△ABC一定是()A.钝角三角形B.锐角三角形C.直角三角形D.不能确定【解答】解:△ABC中,∵|+|=||,∴|+|2=||2,∴||2+||2+2•=||2,即c2+a2+2ca•cosB=b2;又由余弦定理c2+a2﹣2ca•cosB=b2得cosB=0,即B=90°;∴△ABC一定是直角三角形.故选:C.6.(5分)同时具有性质“①最小正周期是π,②图象关于直线x=对称”的一个函数是()A.y=sin(+)B.y=cos(x+)C.y=cos(2x﹣)D.y=sin(2x﹣)【解答】解:A、y=sin(+),∵ω=,∴T=4π,不合题意;B、y=cos(x+),∵ω=1,∴T=2π,不合题意;C、y=cos(2x﹣),∵ω=2,∴T=π,令2x﹣=0,即x=,不合题意;D、y=sin(2x﹣),∵ω=2,∴T=π,令2x﹣=,即x=,即图象关于直线x=对称,符合题意,故选:D.7.(5分)已知等差数列{a n}的前n项和为S n,满足a1=6,a3=4,则下列结论错误的是()A.S6和S7均为S n的最大值 B.a7═0C.公差d<0 D.S9>S5【解答】解:等差数列{a n}的公差设为d,前n项和为S n,满足a1=6,a3=4,可得d==﹣1<0,即C正确;a n=a1+(n﹣1)d=6﹣n+1=7﹣n,则a7=0,即B正确;S n=6n﹣n(n﹣1)=﹣(n﹣)2+,当n=6.5,S n取得最大值,但n为整数,即有S6和S7均为S n的最大值,即A正确;由S9=54﹣36=18,S5=30﹣10=20,即S9<S5,即D错.故选:D.8.(5分)在四边形ABCD中,=(2,4),=(﹣6,3),则该四边形的面积为()A.3 B.2 C.5 D.15【解答】解:∵=2×(﹣6)+4×3=0,∴,即AC⊥BD.∴该四边形的面积S===15.故选:D.9.(5分)已知,是两个单位向量,且.若点C在∠AOB内,且∠AOC=30°,(m,n∈R),则=()A.B.3 C.D.【解答】解:因为,是两个单位向量,且.所以,故可建立直角坐标系如图所示.则=(1,0),=(0,1),故=m(1,0)+n(0,1)=(m,n),又点C在∠AOB内,所以点C的坐标为(m,n),在直角三角形中,由正切函数的定义可知,tan30°=,所以=,故选:D.10.(5分)在锐角三角形中,a、b、c分别是内角A、B、C的对边,设B=2A,则的取值范围是()A.(﹣2,2)B.(0,2) C.(,2)D.(,)【解答】解:∵B=2A,∴sinB=sin2A=2sinAcosA,∴=2cosA,∴由正弦定理得:==2cosA,∵锐角△ABC,∴<B+A=3A<π,∴<A<,∴<cosA<.∴<2cosA<,∴的取值范围是(,).故选:D.二、填空题(本大题共5小题,每空5分,共25分)11.(5分)在△ABC中,tanA=,则tan(A+)的值为3.【解答】解:△ABC中,∵tanA=,则tan(A+)===3,故答案为:3.12.(5分)已知等比数列{a n}的公比为正数,且a1=2,4a3•a9=a52,则a2=1.【解答】解:设等比数列{a n}的公比为q>0,∵a1=2,4a3•a9=a52,∴,∵a1q≠0,∴4q2=1,又q>0,解得q=.∴=1.故答案为1.13.(5分)已知数列{a n}通项为a n=ncos(nπ),n∈N*,则a1+a2+a3…+a2016=1008.【解答】解:∵a n=ncos(nπ),n∈N*,∴a n=a2k﹣1=(2k﹣1)cos(2k﹣1)π=﹣n;a n=a2k=2kcos(2kπ)=n.则a1+a2+a3…+a2016=(﹣1+2)+(﹣3+4)+…+(﹣2015+2016)=1008.故答案为:1008.14.(5分)在△ABC中,内角A,B,C的对边分别为a,b,c,若3a=5b,且sinA 是sinB与sinC的等差中项,则角C=120°.【解答】解:在△ABC中,∵3a=5b,故由正弦定理可得3sinA=5sinB.再由sinA是sinB与sinC的等差中项,可得sinB+sinC=2sinA.故有sinC=sinB,∴c=b.再由余弦定理可得cosC===﹣,则角C=120°,故答案为:120°.15.(5分)如图,设α∈(0,π),且α≠,当∠xOy=α时,定义平面坐标系xOy为α一仿射坐标系,在α仿射坐标系中,任意一点P的斜坐标这样定义;e1,e2分别为与x轴、y轴方向相同的单位向量,若=xe1+ye2,则记为=(x,y),那么在以下的结论中,正确的有①③.(填上所有正确结论的序号)①设=(m,n),=(s,t),若=,则m=s,n=t;②设=(m,n),则||=;③设=(m,n),=(s,t),若∥,则mt﹣ns=0;④设=(m,n),=(s,t),若⊥,则ms+nt=0.【解答】解:对于①,显然正确.对于②,∵,∴||==≠,故②错.对于③,∵,∴,∴s=λm,t=λn,∴mt﹣ns=0,故③正确;对于④,=ms+nt+(mt+ns)cosα≠ms+nt,∴④错误;故答案为:①③三、解答题(本大题共6小题,共75分)16.(12分)已知平面直角坐标系中,点O为原点,A(﹣3,﹣4),B(5,﹣12),若=+,=﹣.(Ⅰ)求点C和点D的坐标;(Ⅱ)求•.【解答】解:(Ⅰ)∵=(﹣3,﹣4),=(5,﹣12),∴=+=(﹣3+5,﹣4﹣12)=(2,﹣16),=﹣=(﹣3﹣5,﹣4+12)=(﹣8,8);∴点C(2,﹣16),点D(﹣8,8);(Ⅱ)•=2×(﹣8)+(﹣16)×8=﹣144.17.(12分)已知等差数列{a n}满足a2=2,a5=8.(1)求{a n}的通项公式;(2)各项均为正数的等比数列{b n}中,b1=1,b2+b3=a4,求{b n}的前n项和T n.【解答】解:(1)设等差数列{an}的公差为d∵a2=2,a5=8∴a1+d=2,a1+4d=8解得a1=0,d=2∴数列{an}的通项公式a n=a1+(n﹣1)d=2n﹣2(2)设各项均为正数的等比数列{bn}的公比为q(q>0)由(1)知a n=2n﹣2b1=1,b2+b3=a4=6∴q≠1∴q=2或q=﹣3(舍去)∴{b n}的前n项和T n=2n﹣118.(12分)在△ABC中,a、b、c分别是角A、B、C的对边,且=﹣.(1)求角B的大小;(2)若b=,a+c=4,求a的值.【解答】解:(1)由正弦定理得===2R,得a=2RsinA,b=2RsinB,c=2RsinC,代入=﹣,即2sinAcosB+sinCcosB+cosCsinB=0,化简得:2sinAcosB+sin(B+C)=0,∵A+B+C=π,∴sin(B+C)=sinA,∴2sinAcosB+sinA=0,∵sinA≠0,∴cosB=﹣,又∵角B为三角形的内角,∴B=;(2)将b=,a+c=4,B=,代入余弦定理b2=a2+c2﹣2accosB,得13=a2+(4﹣a)2﹣2a(4﹣a)cos,∴a2﹣4a+3=0,∴a=1或a=3.19.(12分)某同学在一次研究性学习中发现,以下五个式子的值都等于同一个常数.sin245°+cos275°+sin45°cos75°,sin236°+cos266°+sin36°cos66°.sin215°+cos245°+sin15°cos45°,sin2(﹣15°)+cos215°+sin2(﹣15°)cos15°,sin2(﹣45°)+cos2(﹣15°)+sin(﹣45°)cos(﹣15°).(1)试从上述五个式子中选择一个,求出这个常数;(2)根据(1)的计算结果,将该同学的发现推广为三角恒等式,并证明你的结论.【解答】解:(1)选择第一个式子:sin245°+cos275°+sin45°cos75°=()2+()2+•=;(2)根据(1)的计算结果,及已知五个式子中两个角的关系,推广为三角恒等式:sin2α+cos2(+α)+sinαcos(+α)=,证明如下:sin2α+cos2(+α)+sinαcos(+α)=sin2α+(cos•cosα﹣sin•sinα)2+sinα(cos•cosα﹣sin•sinα)=sin2α+(cosα﹣sinα)2+sinα(cosα﹣sinα)=sin2α+cos2α﹣cosα•sinα+sin2α+sinα•cosα﹣sin2α=sin2α+cos2α=.20.(13分)函数y=Asin(ωx+φ)(A>0,ω>0,|φ|<)的一段图象如图所示.(1)求函数y=f(x)的解析式;(2)将函数y=f(x)的图象向右平移个单位,得到y=g(x)的图象,求直线y=与函数y=f(x)+g(x)的图象在(0,π)内所有交点的坐标.【解答】解:(1)由题图知A=2,T=π,于是ω==2,将y=2sin2x的图象向左平移个单位长度,得y=2sin(2x+φ)的图象.于是φ=2×=∴f(x)=2sin(2x+)(2)由题意得g(x)=2sin[2(x﹣)+]=﹣2cos(2x+)故y=f(x)+g(x)=2sin(2x+)﹣2cos(2x+)=2sin(2x﹣)由2sin(2x﹣)=,得sin(2x﹣)=∵0<x<π∴<2x﹣<2π﹣∴2x﹣=或2x﹣=∴x=或x=所求点的坐标为:(,)或(,)21.(14分)(理)已知函数f(x)对任意x∈R都有f(x)+f(1﹣x)=2.(1)求f()和f()+f()(n∈N*)的值;(2)数列f(x)满足a n=f(0)+f()+f()+…+f()+f(1),(n∈N*)求证:数列{a n}是等差数列;(3)b n=,S n=,T n=b12+b22+b32+…+b n2,试比较T n与S n的大小.【解答】(1)解:∵f(x)对任意x∈R都有f(x)+f(1﹣x)=2,∴,∴,令,∴;(2)证明:f(x)对任意x∈R都有f(x)+f(1﹣x)=2,则令,∵a n=f(0)+f()+f()+…+f()+f(1),∴a n=f(1)+f()+f()+…+f()+f(0),∴2a n=[f(0)+f(1)]+[f()+f()]+…+[f()+f()]+[f(1)+f (0)],∴2a n=2(n+1)(n∈N*)∴a n=n+1(n∈N*)﹣a n=(n+2)﹣(n+1)=1(n∈N*),∴a n+1∴{a n}是等差数列.(3)解:由(2)有∴∴T n=b12+b22+b32+…+b n2<2[(1﹣)+(﹣)+…+(﹣)]=2(1﹣)==S n∴T n<S n赠送初中数学几何模型【模型五】垂直弦模型:图形特征:运用举例:1.已知A、B、C、D是⊙O上的四个点.(1)如图1,若∠ADC=∠BCD=90°,AD=CD,求证AC⊥BD;(2)如图2,若AC⊥BD,垂足为E,AB=2,DC=4,求⊙O的半径.O DAB CEAOD CB2.如图,已知四边形ABCD内接于⊙O,对角线AC⊥BD于P,设⊙O的半径是2。
2014-2015学年四川省雅安中学高一(下)期末数学试卷(解析版)
2014-2015学年四川省雅安中学高一(下)期末数学试卷一、选择题(每题5分,共50分)1.(5分)函数的周期,振幅,初相分别是()A. B.C.D.2.(5分)函数y=sin(x+φ)(0≤φ≤π)是R上的偶函数,则φ=()A.0 B.C.D.π3.(5分)已知,均为单位向量,它们的夹角为,则|+|=()A.1 B.C.D.24.(5分)下列关系式中正确的是()A.sin11°<cos10°<sin168°B.sin168°<sin11°<cos10°C.sin11°<sin168°<cos10°D.sin168°<cos10°<sin11°5.(5分)y=sin(3x﹣)的单调递减区间是()A.[+,+](k∈Z)B.[+,+](k∈Z)C.[+,+](k∈Z)D.[+,+](k∈Z)6.(5分)如图曲线对应的函数是()A.y=|sinx| B.y=sin|x| C.y=﹣sin|x|D.y=﹣|sinx|7.(5分)要得到函数的图象,只需将的图象()A.向右平移个单位B.向右平移个单位C.向右平移个单位D.向左平移个单位8.(5分)如图,已知正六边形P1P2P3P4P5P6,下列向量的数量积中最大的是()A. B.C. D.9.(5分)已知A1,A2,…,A n为凸多边形的内角,且lgsinA1+lgsinA2++lgsinA n=0,则这个多边形是()A.正六边形B.梯形C.矩形D.含锐角菱形10.(5分)在直角坐标系xOy中,分别是与x轴,y轴平行的单位向量,若直角三角形ABC中,,,则k的可能值有()A.1个 B.2个 C.3个 D.4个二.填空题(每题5分,共25分)11.(5分)sin750°=.12.(5分)若向量=(1,2),=(3,4),则=.13.(5分)函数y=5sin(x+)的最小正周期是=.14.(5分)已知sinα•cosα=,且<α<,则cosα﹣sinα=.15.(5分)对于函数f(x)=,给出下列四个命题:①该函数是以π为最小正周期的周期函数;②当且仅当x=π+kπ(k∈Z)时,该函数取得最小值﹣1;③该函数的图象关于x=+2kπ(k∈Z)对称;④当且仅当2kπ<x<+2kπ(k∈Z)时,0<f(x)≤.其中正确命题的序号是.(请将所有正确命题的序号都填上)三.解答题(16.17.18.19题每题12分,20题13分,21题14分,共75分)16.(12分)已知向量=(3,﹣1),=(2,1)求:(1)|+|(2)求与的夹角(3)求x的值使x+3与3﹣2为平行向量.17.(12分)(1)已知tanα=﹣4,求的值;(2)已知sin(3π+θ)=,求+的值.18.(12分)已知△ABC顶点的直角坐标分别为A(3,4),B(0,0),C(c,0 )(1)若c=5,求sin∠A的值;(2)若∠A是钝角,求c的取值范围.19.(12分)如图,函数y=2sin(πx+φ),x∈R(其中0<φ≤)的图象与y轴交与点(0,1).(1)求φ的值;(2)设P是图象上的最高点,M,N是图象与x轴交点,求夹角的余弦值.20.(13分)已知向量=(cosx,﹣1+sinx),=(2cosx,sinx)(1)试用sinx表示•;(2)求•的最大值及此时的x的值.21.(14分)已知函数f(x)=Asin(ωx+φ),(ω>0,|φ|<π)部分图象如图所示.(1)求ϖ,ϕ的值;(2)若方程f(x+)=m在区间[0,]内有两个不相等的实数根x1,x2.求:i)m的取值范围;ii)求x1+x2.2014-2015学年四川省雅安中学高一(下)期末数学模拟试卷参考答案与试题解析一、选择题(每题5分,共50分)1.(5分)函数的周期,振幅,初相分别是()A. B.C.D.【解答】解:∵函数∴振幅是2,初相是又x的系数是,故函数的周期是T==4π对照四个选项知应选C故选:C.2.(5分)函数y=sin(x+φ)(0≤φ≤π)是R上的偶函数,则φ=()A.0 B.C.D.π【解答】解:当φ=0时,y=sin(x+φ)=sinx为奇函数不满足题意,排除A;当φ=时,y=sin(x+φ)=sin(x+)为非奇非偶函数,排除B;当φ=时,y=sin(x+φ)=cosx,为偶函数,满足条件.当φ=π时,y=sin(x+φ)=﹣sinx,为奇函数,故选:C.3.(5分)已知,均为单位向量,它们的夹角为,则|+|=()A.1 B.C.D.2【解答】解:由题意可得:|+|2=,∵,均为单位向量,它们的夹角为,∴|+|2==1+1+2×1×1×cos=3,∴|+|=,故选:C.4.(5分)下列关系式中正确的是()A.sin11°<cos10°<sin168°B.sin168°<sin11°<cos10°C.sin11°<sin168°<cos10°D.sin168°<cos10°<sin11°【解答】解:∵sin168°=sin(180°﹣12°)=sin12°,cos10°=sin(90°﹣10°)=sin80°.又∵y=sinx在x∈[0,]上是增函数,∴sin11°<sin12°<sin80°,即sin11°<sin168°<cos10°.故选:C.5.(5分)y=sin(3x﹣)的单调递减区间是()A.[+,+](k∈Z)B.[+,+](k∈Z)C.[+,+](k∈Z)D.[+,+](k∈Z)【解答】解:由2kπ+≤3x﹣≤2kπ+,k∈Z可得,≤x≤故函数的单调递减区间是[,],故选:D.6.(5分)如图曲线对应的函数是()A.y=|sinx| B.y=sin|x| C.y=﹣sin|x|D.y=﹣|sinx|【解答】解:观察图象知:在y轴的右侧,它的图象与函数y=﹣sinx相同,排除A、B;又在y轴的左侧,它的图象与函数y=sinx相同,排除D;故选:C.7.(5分)要得到函数的图象,只需将的图象()A.向右平移个单位B.向右平移个单位C.向右平移个单位D.向左平移个单位【解答】解:∵,∴要得到函数的图象,只需将的图象向右平移个单位.故选:C.8.(5分)如图,已知正六边形P1P2P3P4P5P6,下列向量的数量积中最大的是()A. B.C. D.【解答】解:如图,已知正六边形P1P2P3P4P5P6,设边长|P1P2|=a,则∠P 2P1P3=.,=,∠P2P1P4=,|P1P4|=2a,=,=0,<0,∴数量积中最大的是,故选:A.9.(5分)已知A1,A2,…,A n为凸多边形的内角,且lgsinA1+lgsinA2++lgsinA n=0,则这个多边形是()A.正六边形B.梯形C.矩形D.含锐角菱形【解答】解:∵A1,A2,…,A n为凸多边形的内角,∴lgsinA i≤0,(i=1,2,3,…,n)又lgsinA1+lgsinA2++lgsinA n=0∴lgsinA i=0⇒sinA i=1⇒A i=90°则这个多边形是矩形.故选:C.10.(5分)在直角坐标系xOy中,分别是与x轴,y轴平行的单位向量,若直角三角形ABC中,,,则k的可能值有()A.1个 B.2个 C.3个 D.4个【解答】解:∵(1)若A为直角,则;(2)若B为直角,则;(3)若C为直角,则.∴k的可能值个数是2,故选:B.二.填空题(每题5分,共25分)11.(5分)sin750°=.【解答】解:sin750°=sin(2×360°+30°)=sin30°=,故答案为:.12.(5分)若向量=(1,2),=(3,4),则=(4,6).【解答】解:=(1,2)+(3,4)=(4,6),故答案为:(4,6).13.(5分)函数y=5sin(x+)的最小正周期是=5π.【解答】解:函数y=5sin(x+)中ω=,∴T==5π.故答案为:5π.14.(5分)已知sinα•cosα=,且<α<,则cosα﹣sinα=﹣.【解答】解:因为,所以cosα﹣sinα<0,所以(cosα﹣sinα)2=1﹣2=,所以cosα﹣sinα=﹣.故答案为:15.(5分)对于函数f(x)=,给出下列四个命题:①该函数是以π为最小正周期的周期函数;②当且仅当x=π+kπ(k∈Z)时,该函数取得最小值﹣1;③该函数的图象关于x=+2kπ(k∈Z)对称;④当且仅当2kπ<x<+2kπ(k∈Z)时,0<f(x)≤.其中正确命题的序号是③④.(请将所有正确命题的序号都填上)【解答】解:由题意函数f(x)=,画出f(x)在x∈[0,2π]上的图象.由图象知,函数f(x)的最小正周期为2π,在x=π+2kπ(k∈Z)和x=+2kπ(k∈Z)时,该函数都取得最小值﹣1,故①②错误,由图象知,函数图象关于直线x=+2kπ(k∈Z)对称,在2kπ<x<+2kπ(k∈Z)时,0<f(x)≤,故③④正确.故答案为③④三.解答题(16.17.18.19题每题12分,20题13分,21题14分,共75分)16.(12分)已知向量=(3,﹣1),=(2,1)求:(1)|+|(2)求与的夹角(3)求x的值使x+3与3﹣2为平行向量.【解答】解:(1)由题意可得+=(5,0),∴|+|=5.(2)由于=6﹣1=5,||=,||=,设与的夹角为θ,则cosθ===,∴θ=.(3)由于x+3=(3x+6,3﹣x),3﹣2=(5,﹣5),且这两个向量为平行向量,∴(3x+6)(﹣5)﹣5(3﹣x)=0,求得x=﹣,即x=﹣满足使x+3与3﹣2为平行向量.17.(12分)(1)已知tanα=﹣4,求的值;(2)已知sin(3π+θ)=,求+的值.【解答】解:(1)∵tanα=﹣4,∴原式===2;(2)由已知得sinθ=﹣.18.(12分)已知△ABC顶点的直角坐标分别为A(3,4),B(0,0),C(c,0 )(1)若c=5,求sin∠A的值;(2)若∠A是钝角,求c的取值范围.【解答】解:(1)根据题意,,,若c=5,则,∴,∴sin∠A=;(2)若∠A为钝角,则解得,∴c的取值范围是;19.(12分)如图,函数y=2sin(πx+φ),x∈R(其中0<φ≤)的图象与y轴交与点(0,1).(1)求φ的值;(2)设P是图象上的最高点,M,N是图象与x轴交点,求夹角的余弦值.【解答】解:(1)把点(0,1)代入函数y=2sin(πx+φ)可得,sinφ=,再由0<φ≤知φ=.(2)由(1)知函数y=2sin(πx+),结合图象可得点P(,2 ),M(﹣,0),N (,0),故PM==,PN==,MN=1,△PMN中,由余弦定理可得1=+﹣2××cos<>,解得cos<>=.20.(13分)已知向量=(cosx,﹣1+sinx),=(2cosx,sinx)(1)试用sinx表示•;(2)求•的最大值及此时的x的值.【解答】解:(1)∵向量=(cosx,﹣1+sinx),=(2cosx,sinx),∴•=2cos2x﹣sinx+sin2x=﹣sin2x﹣sinx+2,∴(2)2由(1),∵﹣1≤sinx≤1,∴,.21.(14分)已知函数f(x)=Asin(ωx+φ),(ω>0,|φ|<π)部分图象如图所示.(1)求ϖ,ϕ的值;(2)若方程f(x+)=m在区间[0,]内有两个不相等的实数根x1,x2.求:i)m的取值范围;ii)求x1+x2.【解答】解:(1)(2)i)f(x+)=sin(2x+),∵,∴,由图,方程f(x+)=m在区间[{0,]内有两个不相等的实数根x1,x2,数形结合可得,∴要有两个不相等的实根,∴m∈;ii)利用对称性,可得.。