2017年模拟试卷2
中大附中小升初英语入学模拟测试题二
2017年中大附中英语小升初模拟试题二注意事项：1.本试卷分为选择题和非选择题;试题第I卷70分；第II卷30分;2.第I卷全部为选择题,选择题每小题只有一个正确选项;第II卷为非选择题;3.测试时间60分钟,全卷满分100分;第I卷 70分一、语音知识;本大题共5小题,每小题1分,共5分;在下列各题的四个选项中选出一个划线部分读音不同的选项;1. A. seat B. son C. desks D. island2. A. show B. window C. cow D. row3. A. brother B. prefer C. weather D. paper4. A. smiled B. played C. asked D. used5. A. bread B. leader C. cheap D. clean二、语言知识与运用;本大题共15小题,每小题1分,共15分;在下列各题的四个选项中选择一个最佳的答案;6. ---Will ______ pear seed become _______ apple tree---Of course not.A. a …anB. a …/C. /…anD. the…a7. Tom’s mother was not at home last week, so he cooked meals for ____.A. herB. himC. hersD. himself8. ---What’s the terrible noise upstairs 楼上I can hardly stand 忍受 that.---Our neighbours ________a party.A. haveB. are havingC. will haveD. had9. My pet cat is ______ TV. It is watching another cat ______ TV.A. in the front of …onB. in front of … onC. in front of … inD. in the front of …in10. I went to the _____ on ______ 2nd last year.A. great wall …marchB. Great wall … AprilC. Great Wall … AugustD. great Wall … june11. You put _____ salt in the soup.A. too manyB. too muchC. many tooD. much too12. I ______ go now. My mum is waiting for me at home.A. mustB. mayC. canD. mustn’t13. The old man always _______ in the park before breakfast.A. do exerciseB. does exerciseC. do exercisesD. does exercises14. Mary often has _____ for breakfast.A. two bread and a milkB. two breads and a glass of milkC. two pieces of bread and some milksD. two pieces of bread and a glass of milk15. When ______ you _______ itA. were…finishB. do…finishC. did…finishD. did… finished16. I feel _______ after I take some medicine.A. much betterB. many betterC. more betterD. well better17. ________ a lot is bad for your body.A. EatB. EatsC. EatingD. Eatting18. _______ in zooA. Not give animals bananasB. No go too near the animalsC. Aren’t feed the animalsD. Don’t wake up lions19. --- I’m sorry I’m late, Mr Li.---______________.A. All rightB. That’s rightC. Not at allD. Never mind20. --- You look so nice in the blue skirt.--- ___________.A. That’s all rightB. Thank youC. Not at allD. I don’t mind.三、完形填空;本大题共20小题,每小题1分,共20分;先通读下面短文,掌握大意,然后从下面四个答案中选择可以填入相应空白处的一个最佳答案;AScotto is very nervous 紧张的 . Today is his first day as 21 English teacher in Dong Hua Middle School in Guangzhou. He speaks a little Chinese.Scotto 22 into the classroom. He says, “Good morning, everyone. I’m your English teacher. My name is Scotto. I 23 from the UK.”The students say nothing. They look 24 at Scotto. Scotto asks 25 a question, “Do you like English ” The students saynothing. Scotto feels more nervous. “ 26 did you get to school ”he goes on asking. The students say nothing again. “I got here 27 a bus. Is your home far from school 28 did you go to school ”The students always make no answer and look afraid.Then one girl stands up. Scotto is happy. The girl says to Scotto, “I’m sorry. We can only 29 a few in English. You are our 30 teacher from the UK. We are afraid.”“Me too,” says Scotto. They all laugh. Then the class asks Scotto many questions.21. A. the B. a C. an D. /22. A. walks B. walk C. walking D. to walk23. A. coming B. am come C. comes D. come24. A. care B. carefully C. careful D. cares25. A. they B. them C. their D. him26. A. Who B. Where C. How D. Which27. A. in B. on C. at D. by28. A. What time B. Where C. How old D. Who29. A. tell B. talk C. speak D. say30. A. first B. once C. one D. one timeBDo you know the word “brunch” It comes 31 the words “breakfast” and “lunch”. In many countries, many people have brunch ---late 32 with early lunch. People usually have brunch between 10:00 . and 2:00 . 33 Sundays. They like to get up 34 after a week’s hard work and want 35 brunch 36 their parents. That is an interesting way to eat for many families.Today brunch is very popular in big hotels. To make it like both breakfast 37 lunch, people have 38 dishes. You can often see the 39 on the table: meat, eggs, fruit, orange juice tea and 40 .31. A. to B. into C. from D. out32. A. meal B. lunch C. supper D. breakfast33. A. in B. on C. at D. by34. A. early B. late C. on time D. behind35. A. to have B. eat C. having D. to has36. A. at B. for C. like D. with37. A. or B. and C. but D. so38. A. a lot B. a lots of C. lots of D. a little39. A. food B. things C. drinks D. clothes40. A. potatoes B. tomatos C. noodle D. hamburger四、阅读理解;本大题共15小题,每小题2分,共30分;阅读下面短文,然后根据内容选择一个最佳答案;AJack likes playing computer games. He often stays in his bedroom and plays games on the computer. He just keeps on playing. He won’t stop even if it is time for dinner. At weekends or on holidays, he always gets up very early, turns on the computer and starts playing. He does not wash his face, brush his teeth or have breakfast. He doesn’t do his homework when he’s playing a new game. So his eyes, his health, and study are getting worse and worse.His parents are very worried about him, but they don’t know what to do to help him.41. According to 根据 the passage, what does Jack likeA. Sleeping.B. Fighting.C. Playing computer games.D. Studying.42. At weekends, why does Jack get up earlyA. To go travelling.B. To do sports.C. To play computer games.D. To do his homework.43. Sometimes Jack doesn’t do his homework when _______.A. he forgets itB. he is too tiredC. the homework is too hardD. he is playing a new game44. Computer games are bad for Jack’s _______.A. health, face and eyesB. eyes, teeth and studyC. teeth, face and healthD. study, health and eyes45. Which of the following is NOT trueA. Jack is a lazy boy.B. Jack’s parents worry about him.C. Jack’s parents don’t know how to help him.D. Jack’s study is getting worse.BDo you get enough sleep With so much homework it’s often difficult to get the rest you need. But you need to try, because sleep keeps you healthy and it stops you getting fat.A group of the US scientists did a study of kids. Those kids were between 8 and 13 years old. The study found that if kids sleepfor just one more hour each day, the chance 机会 of their getting fat is cut by 30%.Why When people don’t get enough sleep, they become tired. When they are tired, they don’t do enough sports. Also, kids like snacks. If they are awake one or two more hours each day, they have more time to eat snacks or other unhealthy foods.So, how much sleep should you get Scientists say 10 to 11 hours a night for kids of 5 to 12 years old. For older kids, eight to nine hours will do.46. How many reasons 原因 can explain 解释 why people may get fat without enough sleepA. 3.B. 2.C. 1.D. 0.47. If you are under 10, how long should you sleep a nightA. 8 to 9 hours.B. 8 to 13 hours.C. 10 to 11 hours.D. as long as possible.48. Where did the scientists do the studyA. In China.B. In Britain.C. In Japan.D. In America.49. “Eight to nine hours will do” means _________.A. Eight to nine hours’ sleep will be good and enough.B. Eight to nine hours’ sleep will be long.C. Eight to nine hours’ sleep will help get fat.D. Eight to nine hours’ sleep will do something for you.50. The passage talks about ___________.A. how to get long sleepB. only kids need enough sleepC. enough sleep makes children healthyD. long sleep makes people healthya time.A. one tablet … 5 mlB. two tablets … 5 mlC. one tablet … mlD. two tablets … ml52. When children are _________, they can’t take the syrup.A. 18 months oldB. 4 years oldC. 12 years oldD. 18 years old53. You should take the tablet _________ a day if you are an adult.A. onceB. twiceC. three timesD. four times54. How much honey should you drink if you are seven years oldA. 0.5 teaspoon.B. teaspoon.C. 1 teaspoon.D. 2 teaspoons.55. When should you take those medicineA. When you have a toothache.B. When you have a backache.C. When you are bleeding 流血.D. When you have a cold.第II卷30分五、信息匹配;本大题共5小题,每小题1分,共5分;左栏是5个同学遇到的问题,右栏是老师给他们的建议;请将问题与恰当的建议配对,并将答案的字母代号填写在下面表格中相应的空中;按要求变换句子,每空只准填一个单词,缩写算一个单词;1. Take some fish to eat by yourself. 改为同义句__________ ____________ to some fish.2. There are three sheep on the grass. 对划线部分提问________ _________ ________ are there on the grass3. The boy walked so slowly. 改为同义句_______ ________ the boy walked4. They brought some flowers to school last week. 改为否定句They _______ ________ _______ flowers to school last week.七、单词拼写;本大题共5小题,每小题1分,共5分;根据句子意思和所给的首字母写出所缺单词,使句子意思完整,每空只填写一个单词,要求开头第一个字母与所给的字母相同;注意：答案填写时,单词的第一个字母要写出来,否则答案无效;1. Mum, you are wanted on the p_______. Could you answer it2. Christmas is an important festival in w_______ countries.3. The wind b_______ strongly when it was winter.4. Janet is s________ late for school. She gets to school on time.5. There aren’t our storybooks, and they are t________.八、补全对话;本大题共10空,每空1分,共10分;每空一词,使对话意思完整,语句正确,缩写算一个单词;A: Can I 1 youB: I’d like a 2 of shoes.A: What size do you want, pleaseB: Size 8.A: What 3 these onesB: I don’t like the 4 . Have you got any 5 coloursA: Yes. We’ve got brown and white ones.B: The white ones look nice. Can I try 6 on… mmm. It’s OK. How much do they 7A: 180 yuan.B: That’s 8 . Can you come down a littleA: 160 yuanB: All right. I’ll 9 them. Here is 200 yuan.A: Thank you, and here’s your 10 .综合测评英语——参考答案一、语音知识;1---5 DCBCA二、语言知识与运用;6---10 ADBBC 11---15 BABDC 16---20 ACDDB三、完形填空;21---30 CADBB CBADA31---40 CDBBA DBCAA四、阅读理解;41---45 CCDDA 46---50 BCDAC 51---55 CABCD五．信息匹配;1---5 CAFHB六、句型转换;1. Help yourself2. How many sheep3. How slowly4. didn’t bring any七、单词拼写;1. phone2. western3. blew4. seldom八、补全对话;1. help2. pair3. about4. colour/color5. other6. them7. cost8. expensive9. take 10. change。
广东省广州市2017届高三下学期第二次模拟考试理综试卷(含答案)
2017年广州市普通高中毕业班综合测试（二）理科综合第I卷一、选择题：本题包括13小题，每小题6分。
在每小题给出的四个选项中，只有一项符合题目要求。
1．下列关于生物体内水和无机盐的叙述，正确的是A．在人体衰老、癌变细胞中水的含量会减少B．人体血浆渗透压的维持主要依靠Na+和K+C．种子晒干的过程中损失的主要是结合水D．缺Mg2+会影响叶肉细胞内水分解成O2和[H]2．下列关于选择透过性膜的叙述，正确的是A．细胞膜是选择透过性膜，主要由磷脂和糖类组成B．植物细胞的质壁分离现象体现了细胞壁和原生质层的选择透过性C．人工脂双层膜能让O2通过不能让Ca2+通过，属于选择透过性膜D,生物膜的选择透过性是活细胞的重要特征3．下列关于酶的实验叙述，正确的是A．利用唾液淀粉酶可以除去植物细胞壁B．用丙酮能从刀豆种子中提取到纯度较高的脲酶C．H2O2分解实验中．Fe3+、加热与过氧化氢酶降低活化能的效果依次增强D-利用pH分别为7、8、9和10的缓冲液探究pH对胃蛋白酶活性的影响4,人类免疫缺陷病毒( HIV)为逆转录病毒，由于逆转录酶缺乏校正修复功能，因而HIV的变异频率非常高。
下列叙述错误的是A．HⅣ最初侵入人体时，免疫系统能摧毁大多数病毒B．共用注射器和纹身器械是传播艾滋病的危险行为C．逆转录酶能以病毒RNA为模板合成病毒蛋白质D．同一被感染个体不同时期体内HIV的基因存在较大差异5．下列关于甲状腺激素的叙述，错误的是A．缺碘引起的甲状腺肿是反馈调节机制发挥作用的结果B．垂体产生的TSH可促进甲状腺细胞分泌甲状腺激素C．甲状腺激素分泌后经导管定向运输到相应靶细胞D．健康人体甲状腺激素分泌增多时，机体产热量增加6．下图是两种遗传病家系图，已知其中一种病为伴性遗传病，以下分析正确的是A ．甲病受显性基因控制B ．Ⅱ6不携带乙病致病基因C ．Ⅲ8是纯合子的概率为1/2D ．人群中乙病的男性患者多于女性7．化学与航空、航天密切相关，下列说法错误的是A ．镁用于制造轻合金，是制造飞机、火箭的重要材料B ．高纯度硅制成的光电池，可用作火星探测器的动力C ．聚酯纤维属于新型无机非金属材料，可制作宇航服D ．高温结构陶瓷耐高温、耐氧化，是喷气发动机的理想材料8．下列关于有机化合物的说法正确的是A ．氯乙烯和溴乙烷均能发生加成反应B ．花生油和玉米油都是可皂化的饱和酯类C ．天然气和水煤气的主要成分都是烃类D ．分子式为C10H14的单取代芳烃，其可能的结构有4种9．设NA 为阿伏加德罗常数的值。
2017年成人高考高起点英语考试全真模拟试题答案二
2017年成人高考高起点英语考试全真模拟试题答案二一、语音知识：共5小题;每题1.5分。
共7.5分。
在下列每组单词中，有一个单词的划线部分与其他单词的划线部分的读音不同。
找出这个词。
第1题请选出下面划线部分读音不同的选项( )。
A.nearB.hearC.pearD.beard第2题请选出下面划线部分读音不同的选项( )。
A.ifB.ofC.loafD.grief第3题请选出下面划线部分读音不同的选项( )。
A.hourB.fourC.flourD.our第4题请选出下面划线部分读音不同的选项( )。
A.dietB.siegeC.briefD.wield第5题请选出下面划线部分读音不同的选项( )。
A.dareB.glareC.spareD.are二、词汇与语法知识：共15小题;每题1.5分，共22.5分。
从每小题的四个选择项中。
选出最佳的一项。
第6题-____?-That would be great! Please drop me off at the library.A.Could you bring me the billB.Would you like me to give you a liftC.Could you tell me the postcodeD.Would you like to have mye-mail address第7题The concert has already begun.You should have come a little bit____.A.early.B.much earlierC.more earlierD.earlier第8题____and I’ll get the homework finishe D.A.Have olle more hourB.One more hourC.Given one more hourD.If I have one more hour第9题Itis no____arguing with Tom because he will never change his min D.eB.helpC.timeD.way第10题Students must be taught how to deal with dangerous.A.statesB.conditionsC.situationsD.positions第11题Mistakes don’t just happen;they occur for a reason.Find out the reason and then making the mistake becomes____.A.favourableB.preciousC.essentialD.worthwhile第12题My dad was against my suggestion while my mum was____it.A.in memory ofB.in favour ofC.in honour ofD.in search of第13题Only then____that she had made a mistake.A.she realizedB.did she realizeC.had she realizedD.she had realized第14题The park is to a city____the lung is to man’s body.A.asB.thatC.whichD.what第15题When you introduce me to Mr.Johnson，could you please say____ for me?A.everythingB.any thingC.somethingD.nothing第16题Sarah had her washing machine repaired the day before yesterday，____she?A.hadB.didC.didn’tD.hadn’t第17题No matter how low you consider yourself，there is always someone____you wishing they werethat high.A.getting rid ofB.getting along withC.looking up toD.looking down upon第18题-Do you mind my smoking here?-_____A.No.thanks.B.No.Good idea.C.Yes，please.D.Yes.Better not.第19题He went to the bookstore and bought____.A.dozen booksB.dozens booksC.dozen of booksD.dozens of books第20题Don’t sit there____e and help me.A.doB.to doC.doingD.and doing三、完形填空：共15小题;每题2分。
2017年全国中学生英语能力竞赛决赛高一组模拟题2
2017年全国中学生英语能力竞赛（NEPCS）决赛高一年级组模拟试题二（总分：150分答题时间：120分钟）听力部分（共三大题，记30分）略笔试部分（共七大题，计120分）Ⅰ. Knowledge and Usage (知识与用法) （共20小题；26-35每小题0.5分，36-45每小题1分计15分）(A) Please complete the following sentences with one word for each blank by using the Chinese or English hints given in the brackets.（请根据括号中所给的汉语提示完成下列句子。
）（答案写在答题纸上）26. We (关心,在乎) what happens in our dreams, even when what happens makes no sense.27. Everything in my childhood crowded in my mind (好像,仿佛) they had just happened.28. But some scientists say that recovering from this (灾难) will be even more complicated.29. In a word, we all can make a difference in (保护) the endangered species from extinction.30. They are all American heroes and (应该得到) our thanks and our remembrances.31. The internet resources should be made use of to (make wealthy or richer) our life32. The people there did not allow them to (build) a factory so as not to pollute the water in the river.33. Helicopters (save) nearly 20 people from the roof of the burning building last night.34. A sad little boy was (looking for ) happiness and wanted to meet God.35. Some patients (in fact)got worse after receiving the treatment.(B) Please complete the following passage by choosing the best of the four choices marked A,B,C and D in the boxes. （请从方框中给所的A,B,C,D四个选项中选出最佳选项完成下面的短文。
2017年中考模拟试题语文卷(二)
2017年中考模拟试题语文卷（二）考试时间：120分钟卷面分值：120分一、古诗文名句填写（8分，每小题1分）1.潮平两岸阔，。
（王湾《次北固山下》）2.，铁马冰河入梦来。
（陆游《十一月四日风雨大作》）3在《红楼梦》第四十八回，曹雪芹借香菱之口评述王维《使至塞上》中“，”两句，指出其描绘大漠壮观景象，似不合事理而实妙、似俗而实巧，可谓一语中的。
4.“轻轻地我走了，正如我轻轻地来。
”三年的时光已悄然流逝，初识犹在昨天，分别即在眼前。
回首往昔，校园处处留下欢歌笑语，而今不免涌起缕缕怅惘。
此时此刻，我们吟诵李白《送友人》中“，”的诗句，感受到一种依依惜别的深情。
5.人生的道路总是充满各种艰难险阻，就像李白在《行路难》中慨叹的那样：“，。
”但是，只要我们乐观自信，坚持不懈，就一定能够战胜这些艰难险阻。
6.晏殊在《浣溪沙》一词中发出“夕阳西下几时回”的疑问，表达对时光流逝的怅惘。
汉乐府《长歌行》中也发出了相似的疑问：，？7.老子有句名言：“合抱之木，生于毫末；九层之台，起于累土；，。
”它启示我们：实现理想要从眼前的小事做起，坚持不懈，持之以恒，否则理想就只是空谈。
8.范仲淹在《岳阳楼记》一文中提出“先天下之忧而忧，后天下之乐而乐”，继承了孟子的“乐民之乐者，民亦乐其乐；忧民之忧者，民亦忧其忧。
，”（《孟子▪梁惠王下》）的思想，体现了中华民族的优秀传统文化和民族精神。
二、语文基础和语文实践活动（共16分）9.下列加点字注音全部正确的一项是（）（2分）A.祈．祷(qí) 骨髓．(suí) 玄．虚(xuán) 束．手无策(shù)B.阻塞．(sè) 滂．沱(páng) 静谧．(mì) 不屑．置辩(xiè)C.倒坍．(tān) 隐匿．(nì) 归省．(xǐng) 锲．而不舍(qiè)D.禁．锢(jìn) 长髯．(rán) 解剖．(pāo) 玲珑剔．透(tī)10.下面各句中，标点符号使用合乎规范的一项是（）（2分）A．十三、四岁的胡适沿着崎岖艰险的小路走进上海，飘到美国，回到北京，他博览群书，学贯中西，成为国人敬仰的国学大师。
海原回中2017模拟试卷2
海原回中2017年第二次模拟试卷物理 试 卷 （85分）注意事项：将所有试题的答案一律填写在答题卡上。
一、选择（选出各题唯一正确的答案。
每题3分，共21分。
不选、多选、错选均得0分）21、许多目前许多汽车都安装了GPS 系统，可显示汽车的方向、车速、所在位置等信息。
GPS 系统与卫星之间实现信号传输是通过（ ）A 、超声波B 、紫外线C 、红外线D 、电磁波22．福州江滨大道“缤纷园”入口处，安装了两盏“风光互补”景观节能灯，如图1所示，它“头顶”小风扇，“肩扛”太阳能电池板。
关于节能灯的设计解释合理的是（ ）A.太阳能电池板是将太阳能转化为电能B.小风扇是用来给太阳能电池板散热的C.小风扇是风力发电机，将电能转化为机械能D.蓄电池在夜晚放电时，将电能转化为化学能23、《舌尖上的中国》的热播，引起了人们对饮食文化的关注。
宁夏吴忠羊肉味鲜、柔嫩、不膻，吃起来肥而不腻，滑而爽口。
吃时最讲究的吃法是“一煮二炖、三蒸四烧烤；花椒、葱、萝卜不能少”，以下说法中正确的是（ ）A 、在较远的地方就能闻到羊肉味，说明分子只在高温下运动B 、在蘸点白盐吃时，是因为盐不会扩散C 、吃羊肉时，热气腾腾白气是水的液化现象D 、在锅里炖羊肉时，羊肉温度升高时，它的内能不变 24．人们能分辨出琴声和笛声的主要依据是（ ）A ．响度B ．音调C ．音色D ．振幅25.如图2所示，小明沿水平方向拉小货车，但没有拉动。
下列几对力中属于平衡力的是( ) A.绳拉车的力与车拉绳的力 B.绳拉人的力与地面对车的摩擦力 C.车的重力与地对车的支持力 D.车的重力与车对地面的压力26．目前国家提倡“低碳生活”，实际上就是为了节约能源和保护环境。
下列说法中符合“低碳生活”理念的是（ ）A ．上学时能骑单车就尽量不坐汽车B ．为了卫生而使用一次性碗筷C ．教材用旧了就不要再循环使用D ．为了方便而使用一次性塑料袋27、如图3所示的电路，电源电压保持不变，闭合开关，滑动变阻器滑片向左滑动时，甲乙两表的示数将（ ）A 、甲表示数变大，乙表示数变大；B 、甲表示数变大，乙表示数变小；C 、甲表示数不变，乙表示数变大；D 、甲表示数变小，乙表示数不变。
模拟试卷二
2017财会会计电算化期末试卷姓名：学号：分数：一、单项选择题1. 在用友T3环境下，关于指定会计科目的说法，错误的是（）。
A．指定会计科目的操作既可以由账套主管进行，也可以由其他操作员进行B．只有余额方向为借方的会计科目才能被指定为现金总账科目或银行总账科目C．“库存现金”科目只有被指定为现金总账科目后，才能以现金日记账的形式查询D．会计科目被指定为现金总账科目或银行总账科目后不能删除，只有取消指定才能删除2. 在用友T3财务报表系统中，舍位公式中的“舍位位数”是指（）。
A．小数点向左移动的位数 B．小数点向右移动的位数C．小数点后需要保留的位数 D．以上选项均不正确3. 在用友T3财务报表系统中，函数LFS("1211",月,"借",,,,,)表示的含义是（）。
A．“原材料”科目本月累计入库材料金额 B．“原材料”科目本月累计发出材料金额C．“原材料”科目本月累计入库材料数量 D．“原材料”科目本月累计发出材料数量4.对应结转只结转（）。
A.期初余额B.本期发生额C.期末余额D.累计金额5.同一张转账凭证，年度内可根据需要（）生成，但每月一般只需结转一次。
A.一次B.二次 C .三次 D.多次6. 企业实施会计电算化以后，其会计软件保管的截止日期是该软件停止使用或有重大更改之后（）。
A．一年 B．两年 C．三年 D．五年7. 在会计软件各模块中，总账模块与其他模块之间的数据传递关系表现为（）。
A．单向接收型 B．单向发送型 C．双向传递型 D．集中传递型8. 某企业在用友T3环境下建立了一个账套，该账套的启用会计期是2009年8月，该企业欲启用总账系统进行业务处理。
下列选项中符合系统启用时间要求的是（）。
A．2009年7月 B．2009年8月C．2009年7月31日 D．2009年8月1日9. 关于用友 T3 总账系统期初余额的说法，错误的是（）。
A．只能录入末级科目的余额，非末级科目的余额由系统自动汇总填入B．如果某科目设置为外币核算科目，应先录入本币余额，然后录入外币余额C．凭证记账后，就不能再输入、修改期初余额D．如果期初余额试算不平衡，则不能在总账系统填制凭证10. 对用友T3软件进行初始设置时，操作顺序正确的是（）。
2017年会计从业《会计基础》模拟试题及答案解析(二)
正保远程教育旗下品牌网站美国纽交所上市公司(NYSE:DL)中华会计网校会计人的网上家园 12017年《会计基础》模拟试题及答案解析（二）一、单项选择题（本题共20题，每题1分，共20分。
）1. （）是指会计主体在会计确认、计量和报告时以货币作为计量尺度,反映会计主体的经济活动。
A. 持续经营B. 货币计量C. 实物计量D. 劳动计量【正确答案】 B【答案解析】货币计量是指会计主体在会计确认、计量和报告时以货币作为计量尺度,反映会计主体的经济活动。
2. 下列各项中，不属于企业资金循环和周转环节的是（）。
A. 分配过程B. 生产过程C. 销售过程D. 供应过程【正确答案】 A【答案解析】资金的运用又称资金的循环和周转，它分为供应、生产、销售三个阶段。
3. 下列各项中，属于流动资产的是（）。
A. 材料采购B. 实收资本C. 长期待摊费用D. 在建工程【正确答案】 A【答案解析】实收资本属于所有者权益；长期待摊费用、在建工程属于非流动资产。
4. 下列关于会计科目的表述中，不正确的是（）。
A. 会计科目是对会计要素的具体内容进行分类核算的项目B. 会计科目按照其所反映的经济内容不同，可分为七大类科目C. 会计科目按其所提供的详细程度及其统驭关系不同，可分为总分类科目和明细分类科目D. 设置会计科目应遵循合法性、相关性和实用性原则【正确答案】 B【答案解析】会计科目按其反映的经济内容不同，可分为资产类科目、负债类科目、共同类科目、所有者权益类科目、成本类科目和损益类科目，共六大类。
5. “主营业务收入”科目按其所归属的会计要素不同，属于（）类科目。
A. 资产B. 所有者权益C. 成本D. 损益【正确答案】 D【答案解析】本题考核会计科目的分类。
“主营业务收入”属于损益类科目。
中南大学机械设计基础模拟试卷2017-2答案精选全文
---○---○------○---○---………… 评卷密封线 ……………… 密封线内不要答题，密封线外不准填写考生信息，违者考试成绩按0分处理 ……………… 评卷密封线 …………中南大学考试试卷(模拟II)机械设计基础A 课程 时间100分钟64学时，4学分，闭卷，总分100分，占总评成绩 70 %一、填空题(本题20分，每小题1分)1. 某平面连杆机构由4个构件组成，则其瞬心个数为 6 ；2. 某正常齿制标准直齿轮的模数为5mm 、齿数是21，则其齿距为 5π ，分度圆直径为 105 ；3. 机构的急回特性可用 行程速度变化系数 表示，其值越大，急回运动的性质越 显著 ；4. 当基圆半径为无穷大时，渐开线就变成 直线 ，此时齿轮就变成 齿条 ；5. 斜齿轮在 端面 上具有渐开线齿形，而在 法面 上具有标准模数与标准压力角；6. 螺栓连接有两种，螺栓杆与孔之间有间隙的称为 普通螺栓连接 螺栓连接；螺栓杆与孔之间没有间隙的称为 铰制孔用螺栓连接 螺栓连接；7. 轴上零件采用两个平键联接时，应设置在相隔 180° 处，进行强度计算时按 1.5 个键计算；8. 选择普通平键时，键的截面尺寸（bxh ）是根据 轴径 查出标准来确定，普通平键的工作面是 两侧面 ；9. 软齿面闭式齿轮传动最常见的失效形式是 齿面接触疲劳点蚀 ，硬齿面闭式齿轮传动最常见的失效形式是 轮齿弯曲疲劳折断 ； 10. 与带传动比较，链传动作用在轴和轴承上的压力 小 ；11. 带传动的弹性滑动是由于 两边拉力不一样 引起的，而打滑是由于外载荷所需的圆周力大于带与主动轮轮缘间的摩擦力（过载） 引起的。
二、单选题(本题10分，每小题1分)1.链传动中链轮齿数取奇数，其原因是 A ；A.轮齿磨损均匀B.具有抗冲击力C.瞬时传动比为定值 2.影响一对齿轮弯曲强度的主要参数是 B ；A.中心距B.模数C.传动比3.曲柄摇杆机械中，摇杆为主动件时， B 死点位置；A.不在于在B.曲柄与连杆共线时为C.摇杆与连杆共线是为4.带传动中弹性滑动的大小随着有效拉力F的增大而 A ；A.增加B.不变C.减小5.渐开线齿轮的齿廓曲线形状取决于 B ；A.分度圆B.基圆C.齿根圆D.齿顶圆6.一铰链四杆机构满足杆长条件，当以最短杆为机架时，该机构为 C 机构；A.曲柄摇杆机构B.双摇杆机构C.双曲柄机构7.标准渐开线齿轮传动在标准安装时，分度圆将 C 节圆；A.大于B.小于C.等于8.在凸轮机构的从动件选用等速运动规律时，其从动件的运动 A ；A.将产行刚性冲击B.将产生柔性冲击C.没有冲击D.既有刚性冲击又有柔性冲击9.采用螺杆联接时，若被联接件之一厚度较大，需要经常装拆，则一般宜采用 B ；A.螺栓联接B.双头螺柱联接C.螺钉联接10.带传动采用张紧轮的目的是 D ；A.减轻带的弹性滑动B.提高带的寿命C.改变带的运动方向D.调节带的初拉力，保证带与带轮具有相应的摩擦力三、某气缸用若干个M16（d1=14.701mm）的普通螺栓联接，每个螺栓的残余预紧力F R为单个螺栓轴向工作载荷F E的1.6倍，已知螺栓的许用应力[σ]=110N/mm2，求该螺栓组单个螺栓联接所能承爱的最大轴向工作载荷是多少（本题10分）解：单个螺栓的总轴向载荷为：F A=F R+F E=1.6F E+F E=2.6F E由螺栓应力计算公式：σ=1.3F AS=1.3F Aπ4d12≤[σ]则：F A≤π4d12[σ]1.3=3.14×14.7012×1104×1.3=14355NF E=F A2.6=143552.6=5521N四、图中所示为一偏置尖顶直动从动件盘形凸轮机构，已知凸轮的实际轮廓线为一圆心在A点的圆，从动件在最低位置为运动起始点，试在图上绘出：（1）凸轮的基圆；（2）图示位置从动件的位移；（3）凸轮从图示位置转过90度时机构的压力角。
2017机电专业综合理论模拟试卷(二)
2017机电专业综合理论模拟试卷二一、判断题1．“220V，100W”和“220V，60W”的两只灯泡串联于220V的交流电源上，总功率为80W。
2．在线性电路中，当负载电阻不变，不论电源内阻如何变化，只要负载电阻与电源内阻相等时，负载获得功率最大。
3.用万用表R×1K量程档测较大容量电容器，若测量时指针始终为零欧姆，不回摆，说明电容器已击穿。
4．电流互感器次级接电流表，电流表内阻较小，所以测量时，互感器次级电流很大。
5. 直流铁心线圈电路消耗的功率为铁损加铜损。
6. 在直流激励下，换路前如果电感元件没有储能，则在换路的瞬间电感元件可作开路。
7. 若非正弦周期量的平均值为零，则其有效值也为零。
8. 若电动机铭牌上电压为380V/220V，接法为Y/Δ，表明电动机可以采用Y-Δ降压起动。
9．CW 7912集成稳压块2、3脚输出电压为—12伏。
10．桥式整流带电容滤波电路中，当负载开路时，输出电压为V2的最大值。
11．渐开线的压力角越远离基圆压力角越大，所以齿顶圆的压力角一定大于齿根圆的压力角。
12．为避免滚子从动件的运动规律出现失真，滚子半径应小于凸轮理论轮廓的最小向径。
13. 4cr9si2可用于制作刀刃细薄的低速切削刀具。
14．单作用气缸的特点是气缸中的活塞只能向一个方向运动。
二、单项选择题15．如图1-1所示电路中，电源U S为（）A．1V B．3V C．5V D．7V16．如图1-2所示的电路中，将开关S闭合后与闭合前比较，（）。
A、流过R1的电流不变，Uab不变B、流过R1的电流变化大，Uab不变C、流过R1的电流不变，Uab变化大D、流过R1的电流和Uab变化都很大17．在图1－3所示电路中，电源电压是12V，四只瓦数相同的白炽灯工作电压都是6V，要使白炽灯正常工作，接法正确的是__________A． B. C. D.图1－318．如图1-4所示的正弦交流电路，方框N部分的阻抗Z=（2+j2）Ω，电流的有效值i R=5A，i C=8A，i L=3A，电路消耗的总功率为200W，则总电压的有效值为( )。
2017年国家司法考试《卷二》临考模拟试题及答案（2）
1.约翰(美国⼈，⽆外交特权和豁免权)于1999年乘坐我国民航飞机去瑞⼠旅游，在瑞⼠上空实施了盗窃⾏为，盗窃了⼀德国⼈的名贵⼿表，试问，我国对该案件有⽆管辖权( ) A.有管辖权，因为是在中国的航空器上实施的犯罪 B.⽆管辖权，因为约翰是美国⼈ C.⽆管辖权，因为是在瑞⼠实施的犯罪 D.⽆管辖权，因为是对德国⼈实施的犯罪 2.甲仇恨⼄，某⽇到⼄家向被⼦⾥的⼄射击后逃⾛，其实⼄早已死亡。
甲的⾏为属于( ) A.意外事件 B.对象错误 C.⼿段错误 D.过失犯罪 3.某甲在12周岁时抢劫了价值2000元的物品，在14周岁⽣⽇的那天抢劫了8000元的物品，并在抢劫过程中将被害⼈杀死，在15周岁时抢劫了价值为9000元的物品，并在抢劫过程中将被害⼈打成重伤。
则( ) A.甲构成抢劫罪，数额为1.7万元 B.甲构成抢劫罪，数额为9000元 C.甲构成故意杀⼈罪和抢劫罪 D.甲构成故意伤害罪 4.陆某与肖某事前商量好，陆某抢劫银⾏之后，以肖某家为暂时窝藏地点。
对肖某应以何罪论处( ) A.窝藏罪 B.包庇罪 C.抢劫罪 D.伪证罪 5.王某犯了三个罪，审判时只判了两个罪，甲罪被判处有期徒刑5年，⼄罪被判处有期徒刑7年，最后决定执⾏的刑期为9年。
执⾏3年后,发现他还有⼀个丙罪没有判决,丙罪被判处有期徒刑5年。
最终对王某决定执⾏的刑期幅度是( ) A.9年以上14年以下，3年应计算在新判决决定的刑期内 B.9年以上14年以下，3年不应计算在新判决决定的刑期内 C.6年以上11年以下，3年不应计算在新判决决定的刑期内 D.7年以上17年以下，3年应计算在新判决决定的刑期内 6.赵某因共同盗窃犯罪被⼈民法院判处有期徒刑3年，⼈民法院量刑时考虑到赵某有积极退赃和检举他⼈犯罪的情节，决定宣告缓刑3年。
缓刑考验期满之后不久，司法机关查获赵某在缓刑考验期内⼜曾盗窃价值约5000余元的财物。
对赵某应当如何处理?( ) A.不撤销原判宣告的缓刑，以盗窃罪从重处罚 B.不撤销原判宣告的缓刑，以累犯从重处罚 C.撤销原判宣告的缓刑，以累犯从重处罚 D.撤销原判宣告的缓刑，将⼆罪并罚 7.某甲意图杀害某⼄，某晚趁某⼄在⽂娱室和其他⼈⼀起看电视之机，向某⼄扔去⼀颗炸弹，结果不但炸了⼄，⽽且还炸死炸伤其他⼈，同时还炸毁了电视机。
2017年公安机关人民警察中级执法资格考试模拟试卷(二)及答案资料
2017年公安机关人民警察中级执法资格考试模拟试题(二)一、判断题（每小题1分，共10分）1、执法是法的实施的重要组成部分和基本实施方式。
( )2、李某因涉嫌犯罪被公安机关取保候审，在取保候审期间，李某不能行使选举权。
( )3.当事人逾期不履行行政处罚决定的，公安机关可以对其予以行政拘留。
( )4.犯罪嫌疑人王某在看守所羁押期间死亡，对于赔偿义务机关的行为与王某死亡之间是否存在因果关系，王某亲属应当提供证据。
( )5、赵某寻衅滋事将王某打成轻微伤。
经双方当事人同意，公安机关可以调解处理此案。
( )6、扰乱、冲击或者以其他方法破坏依法举行的集会、游行、示威的，公安机关可以处以警告或者十五日以下拘留。
( )7. 警察甲发现犯罪嫌疑人乙处于群众聚集的火车站内，人员集中，易伤及无辜群众，因此，无论乙有何犯罪行为，都不能使用武器。
( )8、甲（1993年4月出生）于2009年1月因抢劫罪被判处有期徒刑1年。
2011年 3月，甲再次实施抢劫后逃跑，7月被抓获，根据从旧兼从轻原则，甲不构成累犯。
( )9．根据新刑事诉讼法，辩护律师何某在案件侦查阶段来到公安机关要求查阅、摘抄、复制关于自己的委托人何某涉嫌犯罪的案卷材料，公安机关应当准许。
( )10．张某因盗窃被公安机关给予行政拘留10日处罚。
拘留处罚执行完毕后，查明其还实施了抢夺违法行为并且还在处罚时效内。
如果对其抢夺行为决定拘留15日，在执行时应与之前拘留10日处罚先合并再决定执行期限，且不能超过20日。
( )二、单项选择题（每小题1分，共25分）1、关于法律效力的表述，下列说法正确的是（）。
A．法律一经公布，即产生法律效力B．一切法律的效力级别高低和范围大小都是由刑法、民法等基本法律所规定的C．法律原则上没有溯及力D．为了保证法律的权威性，可以选择在特定范围内公布法律2、由法律确认和调整的人们之间的权利和义务关系是（）。
A．法律系统B．法律关系C．法律制裁D．法律效力3、下列关于经济制度的表述，错误的是（）。
2017继教与网络学院学位考试模拟试题二与答案
华东理工大学继续教育与网络学院学位英语考试模拟试卷二English for Qualification TestPart I Use of Language(10 minutes) Directions: There are 10 incomplete dialogues in this part. For each dialogue there are four choices marked A), B), C) and D). Choose the ONE that best completes the dialogue. Then mark the corresponding letter on the Answer Sheet with a single line through the center.1.— Will you come to our party tonight?— __________, but I will have an important meeting.A) I doubt it B) I ’ll comeC) I ’d like coming D) I ’dlove to2.— Do you think they will fail in the examination?— No, __________.A) I hope not so B) I don ’tthink soC) I don ’thope to D) I think not3.— Would you like to have a cup of coffee?一 __________.A) Never mind B) Not at allC) No, thank you D) Forget it4.— I really can't remember these grammar rules!— __________. Practice more.A) You're not alone B) It's hard to sayC) I'm afraid not D) It's up to you5.––Would you mind if I use your dictionary?––Of course not. __________.A) Don’ tdo’that B) I ’m sorry I can ’tC) Here you are D) Don ’tmention it6.— How do you like the movie?— ________.A) It began an hour ago B) It doesn ’tmatterC) That ’ s fine D) It tells a touching story.7.— ________?— Yes, a bit cold, though.A) Cold weather, isn ’tit B) Bad weather, don ’tyou thinkC) Freezing, isn ’tit D) Nice day, isn ’tit8.— That’ s a beautiful dress you have on!— ________.A)Oh, thanks. My husband gives it to me as a birthday giftB)Sorry, it’ s too cheapC)You can have it from your husbandD) See you later9.— ________?— A little.A) Shall we speak German B) Do you speak GermanC) Would you mind speaking German D) What language do you speak10.— ________?— Yes, how much is this shirt?A) How do you do B) May I help youC) Excuse me D) How are you getting onPart II Reading Comprehension(35 minutes)Directions: There are 4 passages in this section. Each passage is followed by some questions orunfinished statements. For each of them there are four choices marked A), B), C) and D). You shoulddecide on the best choice and mark the corresponding letter on the Answer Sheet.Passage OneQuestions 11 to 15 are based on the following passage.In bringing up children, every parent watches eagerly the child acquisition (学会 )’s ofeachnew skill-the first spoken words,the first independent steps, or the beginning of reading andwriting. It is often tempting to hurry the child beyond his natural learning rate, but this can set updangerous feelings of failure and states of worry in the child: This might happen at any stage. Ababy might be forced to use a toilet too early, a young child might be encouraged to learn to readbefore he knows the meaning of the words he reads. On the other hand, though, if a child is leftalone too much, or without any learning opportunities, he loses his natural enthusiasm for life andhis desire to find out new things for himself.Patents vary greatly in their degree of strictness towards their children. Some may beespecially strict in money matters. Others are severe over times of coming home at night orpunctuality for meals. In general, the controls imposed represent the needs of the parents and thevalues of the community as much as the child’ s own happiness.As regards the development of moral standards in the growing child, consistency is veryimportant in parental teaching. To forbid a thing one day and excuse it the next is no foundationfor morality (道德 ). Also, parents should realize that― example is better than precept‖ . If the not sincere and do not practise what they preach (说教 ), their children may grow confused, andemotionally insecure when they grow old enough to think for themselves, and realize they havebeen to some extent fooled.A sudden awareness of a marked difference between their parents’ principles and their morals can be a dangerous disappointment.11.Eagerly watching the child’ s acquisition of new skills ________.A)should be avoidedB)is universal among parentsC)sets up dangerous states of worry in the childD)will make him lose interest in learning new things12. In the process of children’ s learning new skills parents ________.A)should encourage them to read before they know the meaning of the words they readB)should not expect too much of themC)should achieve a balance between pushing them too hard and leaving them on their ownD)should create as many learning opportunities as possible13.The second paragraph mainly tells us that ________.A)parents should be strict with their childrenB)parental controls reflect only the needs of the parents and the values of the communityC)parental restrictions vary, and are not always enforced for the benefit of the children aloneD)parents vary in their strictness towards their children according to the situation14. The word― precept‖ (Line 3, Para. 3) probably means― ________‖.A) idea B) punishmentC) behavior D) instruction15.In moral matters, parents should ________.A)observe the rules themselvesB)be aware of the marked difference between adults and childrenC)forbid things which have no foundation in moralityD)consistently ensure the security of their childrenPassage TwoQuestions 16 to 20 are based on the following passage.These days we take for granted the wide variety of music available on the radio.But, this wasn’talways the case. In the early days of radio, stations were capable of broadcasting only a narrow range of sounds, which was all right for the human voice but music didn’tsound very good. There was also a great deal of crackling and other static noises that further interfered with the quality of the sound.A man named Edwin Armstrong, who was a music lover, set out to change this. He inventedFM radio, a technology that allowed stations to send a broad range of frequencies that greatly improved the quality of the music.Now, you ’d think that this would have made him a millionaire; it didn’t. Radio stations at that time had invested enormous amounts of money in the old technology.So the last thing they wanted was to invest millions more in the new technology. Nor did they want to have to compete with other radio stations that had a superior sound and could put them out of business. So they pressured the Federal Communications Commission — the department of the United States government that regulates radio stations — to put restrictive regulations on FM radio.The result was that its use was limited to a very small area around New England. Of courseas we all know, Edwin Armstrong ’s FM technology eventually prevailed and was adopted bycame to affect the lives of almost everyone.16.What is the passage mainly about?A)The invention of musical recording equipment.B)The role of government in mass communications.C)The emergence of a new technology.D)The similarities between old and new radio stations.17.What was the main disadvantage of early radio broadcasting?A)It was very expensive.B)The sound quality was poor.C)It could only transmit a human voice.D)The signal was transmitted over a small area.18.What was the purpose of Edwin Armstrong by inventing FM radio?A)To make it possible for radio stations to broadcast a broad range of sounds.B)To make other radio stations spend a large sum of money on more research.C)To make himself world-famous and therefore earn more money.D)To make radio stations compete with one another.19. Why did the owners of radio stations react negatively to Armstrong’s invention?A) Its use was too strictly regulated.B) They thought it was unsafe.C) It threatened their business.D) It was of poor quality.20.What does the passage imply about Edwin Armstrong?A)He became a millionaire from his invention.B)He was an accomplished musician.C)He worked for the Federal Communications Commission.D)He died before FM became popular.Passage ThreeQuestions 21 to 25 are based on the following passage.Psychologist George Spilich and colleagues at Washington College in Chestertown,Maryland , decided to find out whether, as many smokers say, smoking helps them to― think anconcentrate. Spilich put young non-smokers, active smokers and smokers deprived (被剥夺 ) ofcigarettes through a series of tests.In the first test, each subject (试验对象 ) sat before a computer screen and pressed a key assoon as he or she recognized a target letter among a grouping of 96. In this simple test, smokers,deprived smokers and non-smokers performed equally well.The next test was more complex, requiring all to scan sequences of 20 identical letters andrespond the instant one of the letters transformed into a different one. Non-smokers were faster,but under the stimulation of nicotine (尼古丁 ), active smokers were faster than deprived smokers.In the third test of short-term memory, non-smokers made the fewest errors, but deprivedsmokers committed fewer errors than active smokers.The fourth test required people to read a passage, then answer questions about it. Non-smokers remembered 19 percent more of the most important information than active smokers, anddeprived smokers bested those who had smoked a cigarette just before testing. Active smokerstended not only to have poorer memories but also had trouble separating important information from insignificant details.― As our tests became more complex,‖sums up Spilich,―-smn o kersn performed better thansmokers by wider and wider margins‖ He predicts,― smokers might perform adequatelyany at m jobs-until they got complicated. A smoking airline pilot could fly adequately if no problems arose,but if something went wrong, smoking might damage his mental capacity.‖21. The purpose of George Spilich’ s experiments is ________.A) to test whether smoking has a positive effect on the mental capacity of smokersB) to show how smoking damages people’ s mental capacityC) to prove that smoking affects people’ s regular performanceD) to find out whether smoking helps people-term memory’sshort22.George Spilich’ s experiment was conducted in such a way as to ________.A)compel the subjects to separate major information from minor detailsB)put the subjects through increasingly complex testsC)check the effectiveness of nicotine on smokersD)register the prompt responses of the subjects23.The word ― bested ‖ (Line 3, Para. 5) most probably means ________.A) beat B) enviedC) caught up with D) made the best of24.Which of the following statements is true?A)Active smokers in general performed better than deprived smokers.B)Active smokers responded more quickly than the other subjects.C)Non-smokers were not better than other subjects in performing simple tasks.D)Deprived smokers gave the slowest responses to the various tasks.25.We can infer from the last paragraph that ________.A)smokers should not expect to become airline pilotsB)smoking in emergency cases causes mental illnessC)no airline pilots smoke during flightsD)smokers may prove unequal to handing emergency casesPassage FourQuestions 26 to 30 are based on the following passage.St. Patrick’ s Day (March 17) is onetheof most important holidays in Ireland. People willwear green shirts, ties, and hair ribbons. Some even dye their hair green because they believethat on that day the color brings them good luck.On St. Patrick ’ s theDay,Irish around the world traditionally attend church in the morningand have some celebrations in the afternoon. They dance, drink, parade, and feast. Atraditional meal includes meat, cabbage and a special Irish beer called Guinness.St. Patrick ’ s Day is a religious holiday that can be traced back more than one thousand yearsago, and it is related to a boy named St. Patrick who became an Irish saint when he grew up.He was born to a wealthy family in Wales around the year 385 AD. But when he was sixteen, aband of raiders（劫掠者） took him as a slave to what is now the neighboring island of Ireland.Patrick lived there for several years. He was so lonely and afraid that he took solace inreligion and became a faithful Christian. Later, he returned to Ireland as a missionary, travelingfrom village to village and talking about his faith. He explained to people the Father, the Son(Jesus), and the Holy Spirit as each of the leaves of a shamrock. There were three leaves, yet theywere one plant. From then on, the shamrock, a small plant that grew wild around Ireland, has beena symbol of Ireland and because of it, green is associated with St. Patrick’ s Day.26.From the passage, we can infer that ______.A) Patrick lived in Ireland all his lifeB) Patrick’ s family was very poorC) Patrick’ s life in what is now the neighboring island of Ireland was hardD) Patrick didn’ t believe in Christianity27.What is the symbol of Ireland according to this passage?A) St. Patrick.B) Guinness.C) Cabbage.D) Shamrock.28.The underlined word solace―‖ in Paragraph 5 means ______.A) love B) happiness C) hatred D) comfort29. Which of the following statements is NOT true?A)St. Patrick’ s Day is a worldwide holiday.B)St. Patrick’ s Day has a long history.C) On St. Patrick’ s Day, green is the lucky color in people’ s eyes.D)People respect St. Patrick and love him.30.What is the passage about?A) The symbols of St. Patrick’ s Day.B) The origin of St. Patrick’. s DayC) St. Patrick’. s life D) The history of St. Patrick’. s DayPart III Vocabulary and Structure(25 minutes) Directions: There are 25 incomplete sentences in this part. For each sentence there are four choices marked A), B), C) and D). Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center.31.It was very kind of you to do the washing-up, but you ________ it.A) mustn ’ t have done B) wouldn ’ t have doneC) mightn ’ t have done D) didn ’ t have to do32.When she caught her husband ______ on her, she felt her whole world shattered into pieces.A) to cheat B) cheatC) cheating D) to be cheating33.The teacher was much kinder to the girl students than she was to the boys, ___________, ofcourse, made the boys jealous.A) who B) whatC) that D) which34.―You are very selfish. It’s high time you _______ that you are not the most important personin the world, ‖Edgar said to his boss angrily.A) realized B) have realizedC) realize D) should realize35. Had he worked harder in the last semester, he _____________ the exams.A) must have got through B) would have got throughC) would get through D) could get through36.The situation is __________ that political observers will find it difficult to predict.A) so B) reallyC) such D) all37.As a student, I want to use my creativity to explore possible solutions to problems I_________.A) encounter B) getC) face D) have38.The old man slowly rose from his seat and __________ to the front of the bus.A) made way B) made a wayC) made the way D) made his way39.Mary had a bad headache. She took an aspirin to __________ the pain.A) release B) ease40.That car is my __________; you mustn’ t use it without my permission.A) goods B) stuffC) property D) item41.She was reaching out for the boy __________he danced away from her.A) when B) asC) while D) since42.It took me quite a while to __________ John of the stupid decision he had made.A) persuade B) convinceC) talk D) advise43.He only gave his friend the __________ of using his private library.A) duty B) advantageC) privilege D) power44.We’ dall like to be stronger. Whether that strength be physical, emotional or __________,most of us have an area in which we’ d like to improve and have others admire.A) natural B) inbornC) individual D) intellectual45.The second part of the book describes the strange __________ of events that lead to the King ’s fall from power.A) order B) tableC) sequence D) number46.Shanghai Bund is a great tourist ______, drawing millions of visitors worldwide every year.A) attention B) attractionC) appointment D) arrangement47.A peculiarly pointed chin is his most memorable facial ________.A) mark B) featureC) trace D) appearance48.I ’ d rather you ________ make any comment on the issue for the time being.A) don’t B) wouldn’tC) didn’t D) shouldn’t49.All things ________, the planned trip will have to be called off.A) considered B) be consideredC) considering D) having considered50.John Dewey believed that education should be a preparation for life, that a person learns bydoing, and that teaching must ________ the curiosity and creativity of children.A) seek B) stimulateC) shape D) secure51.Criticism and self-criticism is necessary ________ it helps us to find and correct our mistakes.A) by that B) at thatC) on that D) in that52.However, at times this balance in nature is ________, resulting in a number of possiblyunforeseen effects.A) troubled B) disturbedC) confused D) puzzled40.That car is my __________; you mustn’ t use it without my permission.A) goods B) stuffC) property D) item41.She was reaching out for the boy __________he danced away from her.A) when B) asC) while D) since42.It took me quite a while to __________ John of the stupid decision he had made.A) persuade B) convinceC) talk D) advise43.He only gave his friend the __________ of using his private library.A) duty B) advantageC) privilege D) power44.We’ dall like to be stronger. Whether that strength be physical, emotional or __________,most of us have an area in which we’ d like to improve and have others admire.A) natural B) inbornC) individual D) intellectual45.The second part of the book describes the strange __________ of events that lead to the King ’s fall from power.A) order B) tableC) sequence D) number46.Shanghai Bund is a great tourist ______, drawing millions of visitors worldwide every year.A) attention B) attractionC) appointment D) arrangement47.A peculiarly pointed chin is his most memorable facial ________.A) mark B) featureC) trace D) appearance48.I ’ d rather you ________ make any comment on the issue for the time being.A) don’t B) wouldn’tC) didn’t D) shouldn’t49.All things ________, the planned trip will have to be called off.A) considered B) be consideredC) considering D) having considered50.John Dewey believed that education should be a preparation for life, that a person learns bydoing, and that teaching must ________ the curiosity and creativity of children.A) seek B) stimulateC) shape D) secure51.Criticism and self-criticism is necessary ________ it helps us to find and correct our mistakes.A) by that B) at thatC) on that D) in that52.However, at times this balance in nature is ________, resulting in a number of possiblyunforeseen effects.A) troubled B) disturbedC) confused D) puzzled40.That car is my __________; you mustn’ t use it without my permission.A) goods B) stuffC) property D) item41.She was reaching out for the boy __________he danced away from her.A) when B) asC) while D) since42.It took me quite a while to __________ John of the stupid decision he had made.A) persuade B) convinceC) talk D) advise43.He only gave his friend the __________ of using his private library.A) duty B) advantageC) privilege D) power44.We’ dall like to be stronger. Whether that strength be physical, emotional or __________,most of us have an area in which we’ d like to improve and have others admire.A) natural B) inbornC) individual D) intellectual45.The second part of the book describes the strange __________ of events that lead to the King ’s fall from power.A) order B) tableC) sequence D) number46.Shanghai Bund is a great tourist ______, drawing millions of visitors worldwide every year.A) attention B) attractionC) appointment D) arrangement47.A peculiarly pointed chin is his most memorable facial ________.A) mark B) featureC) trace D) appearance48.I ’ d rather you ________ make any comment on the issue for the time being.A) don’t B) wouldn’tC) didn’t D) shouldn’t49.All things ________, the planned trip will have to be called off.A) considered B) be consideredC) considering D) having considered50.John Dewey believed that education should be a preparation for life, that a person learns bydoing, and that teaching must ________ the curiosity and creativity of children.A) seek B) stimulateC) shape D) secure51.Criticism and self-criticism is necessary ________ it helps us to find and correct our mistakes.A) by that B) at thatC) on that D) in that52.However, at times this balance in nature is ________, resulting in a number of possiblyunforeseen effects.A) troubled B) disturbedC) confused D) puzzled。
2017年江西省赣州市、吉安市、抚州市七校联考高考数学模拟试卷(文科)(2)(解析版)
2017年江西省赣州市、吉安市、抚州市七校联考高考数学模拟试卷（文科）（2）一、选择题：本大题共12个小题，每小题5分，共60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．设集合U={1，2，3，4}，集合A={x∈N|x2﹣5x+4＜0}，则∁U A等于（）A．{1，2}B．{1，4}C．{2，4}D．{1，3，4}2．已知=b+i（a，b∈R），其中i为虚数单位，则a+b=（）A．﹣1 B．1 C．2 D．33．在等差数列{a n}中，已知a3+a8=6，则3a2+a16的值为（）A．24 B．18 C．16 D．124．设0＜a＜b＜1，则下列不等式成立的是（）A．a3＞b3B．C．a b＞1 D．lg（b﹣a）＜05．已知函数f（x）=x2+，则“0＜a＜2”是“函数f（x）在（1，+∞）上为增函数”的（）A．充分而不必要条件B．必要而不充分条件C．充要条件D．既不充分也不必要条件6．运行如图所示框图的相应程序，若输入a，b的值分别为log43和log34，则输出M的值是（）A．0 B．1 C．3 D．﹣17．某几何体的三视图如图所示，则该几何体的体积为（）A ．24B ．48C ．54D ．728．在△ABC 中，角A ，B ，C 的对边分别为a ，b ，c ，若c=2，b=2，C=30°，则角B 等于（A ．30°B ．60°C ．30°或60°D ．60°或120°9．已知函数，若，则实数a 的取值范围是（ ）A ．B ．（﹣1，0]C ．D ．10．如图F 1，F 2是双曲线与椭圆C 2的公共焦点，点A 是C 1，C 2在第一象限内的公共点，若|F 1F 2|=|F 1A |，则C 2的离心率是（ ）A ．B ．C ．D ．11．函数y=（其中e 为自然对数的底）的图象大致是（ ）A ．B ．C ．D ．12．设x ，y 满足约束条件，若目标函数2z=2x +ny （n ＞0），z 的最大值为2，则的图象向右平移后的表达式为（）A．B．C．D．y=tan2x二、填空题（每题5分，满分20分，将答案填在答题纸上）13．已知直线x+2y﹣1=0与直线2x+my+4=0平行，则m=．14．设D为△ABC所在平面内一点，，若，则x+2y=．15．已知m∈R，命题p：对任意实数x，不等式x2﹣2x﹣1≥m2﹣3m恒成立，若￢p为真命题，则m的取值范围是．16．设曲线y=x n+1（x∈N*）在点（1，1）处的切线与x轴的交点横坐标为x n，则log2016x1+log2016x2+log2016x3+…+log2016x2015的值为．三、解答题（本大题共5小题，共70分.解答应写出文字说明、证明过程或演算步骤.）17．等差数列{a n}中，已知a n＞0，a2+a5+a8=33，且a1+2，a2+5，a3+13构成等比数列{b n}的前三项．（1）求数列{a n}，{b n}的通项公式；（2）记，求数列{c n}的前n项和T n．18．已知函数的最小正周期是π．（1）求函数f（x）在区间x∈（0，π）的单调递增区间；（2）求f（x）在上的最大值和最小值．19．如图，AB为圆O的直径，点E，F在圆O上，AB∥EF，矩形ABCD所在的平面和圆（x﹣1）2+y2=1所在的平面互相垂直，且AB=2，AD=EF=1，∠BAF=60°．（1）求证：AF⊥平面CBF；（2）设FC的中点为M，求三棱锥M﹣DAF的体积V1与多面体CD﹣AFEB的体积V2之比的值．20．已知椭圆C： +=1（a＞b＞0），与y轴的正半轴交于点P（0，b），右焦点F（c，0），O为坐标原点，且tan∠PFO=．（1）求椭圆的离心率e；（2）已知点M（1，0），N（3，2），过点M任意作直线l与椭圆C交于C，D 两点，设直线CN，DN的斜率k1，k2，若k1+k2=2，试求椭圆C的方程．21．已知f（x）=|xe x|．（1）求函数f（x）的单调区间；（2）若g（x）=f2（x）+tf（x）（t∈R），满足g（x）=﹣1的x有四个，求t的取值范围．[选修4-4：坐标系与参数方程]22．在直角坐标系xOy中，曲线，曲线C2的参数方程为：，（θ为参数），以O为极点，x轴的正半轴为极轴的极坐标系．（1）求C1，C2的极坐标方程；（2）射线与C1的异于原点的交点为A，与C2的交点为B，求|AB|．[选修4-5：不等式选讲]23．已知函数f（x）=|x﹣a|+|x+5﹣a|（1）若不等式f（x）﹣|x﹣a|≤2的解集为[﹣5，﹣1]，求实数a的值；（2）若∃x0∈R，使得f（x0）＜4m+m2，求实数m的取值范围．2017年江西省赣州市、吉安市、抚州市七校联考高考数学模拟试卷（文科）（2）参考答案与试题解析一、选择题：本大题共12个小题，每小题5分，共60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．设集合U={1，2，3，4}，集合A={x∈N|x2﹣5x+4＜0}，则∁U A等于（）A．{1，2}B．{1，4}C．{2，4}D．{1，3，4}【考点】补集及其运算．【分析】化简集合A，求出∁U A．【解答】解：集合U={1，2，3，4}，集合A={x∈N|x2﹣5x+4＜0}={x∈N|1＜x＜4}={2，3}，所以∁U A={1，4}．故选：B．2．已知=b+i（a，b∈R），其中i为虚数单位，则a+b=（）A．﹣1 B．1 C．2 D．3【考点】复数代数形式的混合运算．【分析】先化简复数，再利用复数相等，解出a、b，可得结果．【解答】解：由得a+2i=bi﹣1，所以由复数相等的意义知a=﹣1，b=2，所以a+b=1另解：由得﹣ai+2=b+i（a，b∈R），则﹣a=1，b=2，a+b=1．故选B．3．在等差数列{a n}中，已知a3+a8=6，则3a2+a16的值为（）A．24 B．18 C．16 D．12【考点】等差数列的通项公式；等差数列的性质．【分析】由已知结合等差数列的性质整体运算求解．【解答】解：∵a3+a8=6，∴3a2+a16=2a2+a2+a16=2a2+2a9=2（a3+a8）=12．故选：D．4．设0＜a＜b＜1，则下列不等式成立的是（）A．a3＞b3B．C．a b＞1 D．lg（b﹣a）＜0【考点】不等关系与不等式．【分析】直接利用条件，通过不等式的基本性质判断A、B的正误；指数函数的性质判断C的正误；对数函数的性质判断D的正误；【解答】解：因为0＜a＜b＜1，由不等式的基本性质可知：a3＜b3，故A不正确；，所以B不正确；由指数函数的图形与性质可知a b＜1，所以C不正确；由题意可知b﹣a∈（0，1），所以lg（b﹣a）＜0，正确；故选D．5．已知函数f（x）=x2+，则“0＜a＜2”是“函数f（x）在（1，+∞）上为增函数”的（）A．充分而不必要条件B．必要而不充分条件C．充要条件D．既不充分也不必要条件【考点】必要条件、充分条件与充要条件的判断．【分析】求出函数的导数，问题转化为2x3≥a在区间（1，+∞）上恒成立，求出a的范围，结合集合的包含关系判断即可．【解答】解：f′（x）=2x﹣≥0，即2x3≥a在区间（1，+∞）上恒成立，则a≤2，而0＜a＜2⇒a≤2，故选：A．6．运行如图所示框图的相应程序，若输入a，b的值分别为log43和log34，则输出M的值是（）A．0 B．1 C．3 D．﹣1【考点】程序框图．【分析】确定log34＞log43，可得M=log34•log43﹣2，计算可得结论．【解答】解：∵log34＞1，0＜log43＜1，∴log34＞log43，∴M=log34•log43﹣2=﹣1，故选：D．7．某几何体的三视图如图所示，则该几何体的体积为（）A．24 B．48 C．54 D．72【考点】由三视图求面积、体积．【分析】由三视图还原为如图所示的直视图，即可得出．【解答】解：还原为如图所示的直视图，．故选：A．8．在△ABC中，角A，B，C的对边分别为a，b，c，若c=2，b=2，C=30°，则角B等于（A．30°B．60°C．30°或60°D．60°或120°【考点】余弦定理．【分析】由已知及正弦定理可求得sinB==，由范围B∈（30°，180°）利用特殊角的三角函数值即可得解．【解答】解：∵c=2，b=2，C=30°，∴由正弦定理可得：sinB===，∵b＞c，可得：B∈（30°，180°），∴B=60°或120°．故选：D．9．已知函数，若，则实数a的取值范围是（）A．B．（﹣1，0]C．D．【考点】分段函数的应用．【分析】利用分段函数，结合已知条件，列出不等式组，转化求解即可．【解答】解：由题意，得或，解得或﹣1＜a≤0，即实数a的取值范围为，故选C．10．如图F1，F2是双曲线与椭圆C2的公共焦点，点A是C1，C2在第一象限内的公共点，若|F1F2|=|F1A|，则C2的离心率是（）A．B．C．D．【考点】圆锥曲线的综合；双曲线的简单性质．【分析】利用椭圆以及双曲线的定义，转化求解椭圆的离心率即可．【解答】解：由题意F1，F2是双曲线与椭圆C2的公共焦点可知，|F1F2|=|F1A|=6，∵|F1A|﹣|F2A|=2，∴|F2A|=4，∴|F1A|+|F2A|=10，∵2a=10，∴C2的离心率是．故选：C．11．函数y=（其中e为自然对数的底）的图象大致是（）A．B． C．D．【考点】利用导数研究函数的极值；函数的图象．【分析】利用函数的导数，求出函数的极大值，判断函数的图形即可．【解答】解：当x≥0时，函数y==，y′=，有且只有一个极大值点是x=2，故选：A．12．设x，y满足约束条件，若目标函数2z=2x+ny（n＞0），z的最大值为2，则的图象向右平移后的表达式为（）A．B．C．D．y=tan2x【考点】简单线性规划．【分析】画出约束条件的可行域，利用目标函数的最值求出n，然后利用三角函数的平移变换求解即可．【解答】解：作出可行域与目标函数基准线，由线性规划知识，可得当直线过点B（1，1）时，z取得最大值，即，解得n=2；则的图象向右平移个单位后得到的解析式为．故选：C．二、填空题（每题5分，满分20分，将答案填在答题纸上）13．已知直线x+2y﹣1=0与直线2x+my+4=0平行，则m=4．【考点】直线的一般式方程与直线的平行关系．【分析】由直线x+2y﹣1=0与直线2x+my+4=0平行，可得，即可求出m的值．【解答】解：由直线x+2y﹣1=0与直线2x+my+4=0平行，可得，∴m=4．故答案为4．14．设D为△ABC所在平面内一点，，若，则x+2y=﹣4．【考点】平面向量的基本定理及其意义．【分析】由已知得，从而，由此能求出x+2y的值．【解答】解：∵，∴，即，∴x=6，y=﹣5，∴x+2y=﹣4．故答案为：﹣4．15．已知m∈R，命题p：对任意实数x，不等式x2﹣2x﹣1≥m2﹣3m恒成立，若￢p为真命题，则m的取值范围是（﹣∞，1）∪（2，+∞）．【考点】命题的真假判断与应用．【分析】由对任意x∈R，不等式x2﹣2x﹣1≥m2﹣3m恒成立，运用二次函数的最值求法，可得m2﹣3m≤﹣2，解不等式可得m的范围，再由￢p为真命题时，则P为假命题，即可得到所求m的范围．【解答】解：∵对任意x∈R，不等式x2﹣2x﹣1≥m2﹣3m恒成立，∴，即m2﹣3m≤﹣2，即有（m﹣1）（m﹣2）≤0，解得1≤m≤2．因此，若￢p为真命题时，则P为假命题，可得m的取值范围是（﹣∞，1）∪（2，+∞）．故答案为：（﹣∞，1）∪（2，+∞）．16．设曲线y=x n+1（x∈N*）在点（1，1）处的切线与x轴的交点横坐标为x n，则log2016x1+log2016x2+log2016x3+…+log2016x2015的值为﹣1．【考点】利用导数研究曲线上某点切线方程．【分析】求出函数y=x n+1（n∈N*）在（1，1）处的切线方程，取y=0求得x n，然后利用对数的运算性质得答案．【解答】解：由y=x n+1，得y′=（n+1）x n，∴y′|x=1=n+1，∴曲线y=x n+1（n∈N*）在（1，1）处的切线方程为y﹣1=（n+1）（x﹣1），取y=0，得x n=．∴x1x2x3•…•x2015==则log2016x1+log2016x2+…+log2016x2015=log2016（x1x2x3•…•x2015）=﹣1．故答案为：﹣1．三、解答题（本大题共5小题，共70分.解答应写出文字说明、证明过程或演算步骤.）17．等差数列{a n}中，已知a n＞0，a2+a5+a8=33，且a1+2，a2+5，a3+13构成等比数列{b n}的前三项．（1）求数列{a n}，{b n}的通项公式；（2）记，求数列{c n}的前n项和T n．【考点】数列的求和；等差数列与等比数列的综合．【分析】（1）利用等差数列与等比数列的通项公式即可得出．（2）利用“错位相减法”与等比数列的求和公式即可得出．【解答】解：（1）设等差数列{a n}的公差为d，则由已知得：a2+a5+a8=33，即a5=11．又（11﹣4d+2）（11﹣2d+13）=（11﹣3d+5）2，解得d=2或d=﹣28（舍），a1=a5﹣4d=3，∴a n=a1+（n﹣1）d=2n+1．又b1=a1+2=5，b2=a2+5=10，∴q=2，∴．（2）=+1，∴，，两式相减得，∴．18．已知函数的最小正周期是π．（1）求函数f（x）在区间x∈（0，π）的单调递增区间；（2）求f（x）在上的最大值和最小值．【考点】正弦函数的单调性；三角函数的最值．【分析】（1）化函数f（x）为正弦型函数，根据f（x）的最小正周期是π求出ω，写出f（x）解析式；根据正弦函数的单调性求出f（x）在x∈（0，π）上的单调递增区间；（2）根据x∈[，]时2x﹣的取值范围，再求出对应函数f（x）的最值即可．【解答】解：（1）函数f（x）=4cosωxsin（ωx﹣）=4cosωx（sinωx﹣cosωx）=2sinωxcosωx﹣2cos2ωx+1﹣1=sin2ωx﹣cos2ωx﹣1=2sin（2ωx﹣）﹣1，且f（x）的最小正周期是，所以ω=1；从而f（x）=2sin（2x﹣）﹣1；令，解得，所以函数f（x）在x∈（0，π）上的单调递增区间为和．（2）当x∈[，]时，2x∈[，]，所以2x﹣∈[，]，2sin（2x﹣）∈[，2]，所以当2x﹣=，即x=时f（x）取得最小值1，当2x﹣=，即x=时f（x）取得最大值﹣1；所以f（x）在上的最大值和最小值分别为．19．如图，AB为圆O的直径，点E，F在圆O上，AB∥EF，矩形ABCD所在的平面和圆（x﹣1）2+y2=1所在的平面互相垂直，且AB=2，AD=EF=1，∠BAF=60°．（1）求证：AF⊥平面CBF；（2）设FC的中点为M，求三棱锥M﹣DAF的体积V1与多面体CD﹣AFEB的体积V2之比的值．【考点】棱柱、棱锥、棱台的体积；直线与平面垂直的判定．【分析】（1）证明CB⊥AB，CB⊥AF，推出AF⊥BF，然后证明AF⊥平面CBF；（2）设DF的中点为H，连接MH，证明∥平面DAF．求出三棱锥M﹣DAF的体积V1，多面体CD﹣AFEB的体积可分成三棱锥C﹣BEF与四棱锥F﹣ABCD的体积之和，q求出多面体CD﹣AFEB的体积V2，即可求解V1：V2．【解答】（1）证明：∵矩形ABCD所在的平面和平面ABEF互相垂直，且CB⊥AB，∴CB⊥平面ABEF，又AF⊄平面ABEF，所以CB⊥AF，又AB为圆O的直径，得AF ⊥BF，BF∩CB=B，∴AF⊥平面CBF．（2）解：设DF的中点为H，连接MH，则∴，又，∴，∴OAHM为平行四边形，OM∥AH，又∵OM⊄平面DAF，∴OM∥平面DAF．显然，四边形ABEF为等腰梯形，∠BAF=60°，因此△OAF为边长是1的正三角形．三棱锥M﹣DAF的体积；多面体CD﹣AFEB的体积可分成三棱锥C﹣BEF与四棱锥F﹣ABCD的体积之和，计算得两底间的距离．所以，，所以，∴V1：V2=1：5．20．已知椭圆C： +=1（a＞b＞0），与y轴的正半轴交于点P（0，b），右焦点F（c，0），O为坐标原点，且tan∠PFO=．（1）求椭圆的离心率e；（2）已知点M（1，0），N（3，2），过点M任意作直线l与椭圆C交于C，D 两点，设直线CN，DN的斜率k1，k2，若k1+k2=2，试求椭圆C的方程．【考点】椭圆的简单性质．【分析】（1）tan∠PFO=，可得=，c=b，a==b．即可得出．（2）直线l的斜率不为0时，设直线l的方程为：ty=x﹣1．设C（x1，y1），D（x2，y2）．直线方程与椭圆方程联立化为：（t2+3）y2+2ty+1﹣3b2=0，由k1+k2=2，即+=2，化为：ty1•y2=y1+y2，利用根与系数的关系代入即可得出．直线l的斜率为0时也成立．【解答】解：（1）∵tan∠PFO=，∴=，∴c=b，a==b．∴==．（2）直线l的斜率不为0时，设直线l的方程为：ty=x﹣1．设C（x1，y1），D（x2，y2）．联立，化为：（t2+3）y2+2ty+1﹣3b2=0，y1+y2=，y1•y2=，∵k1+k2=2，∴+=2，化为：（y1﹣2）（ty2﹣2）+（y2﹣2）（ty1﹣2）=2（ty1﹣2）（ty2﹣2），即：ty1•y2=y1+y2，∴t•=，对∀t∈R都成立．化为：b2=1，直线l的斜率为0时也成立，∴b2=1，∴椭圆C的方程为．21．已知f（x）=|xe x|．（1）求函数f（x）的单调区间；（2）若g（x）=f2（x）+tf（x）（t∈R），满足g（x）=﹣1的x有四个，求t的取值范围．【考点】利用导数研究函数的单调性；根的存在性及根的个数判断．【分析】（1）通过讨论x的范围，去掉绝对值号，求出函数的导数，求出函数的单调区间即可；（2）做出函数f（x）=|x•e x|的图象，根据图象可判断在（，+∞）上可有一个跟，在（0，）上可有三个根，根据二次函数的性质可得出y（）＜0，求解即可．【解答】解：（1）x≥0时，f（x）=xe x，f′（x）=（x+1）e x＞0，f（x）在[0，+∞）递增，x＜0时，f（x）=﹣xe x，f′（x）=﹣（x+1）e x，令f′（x）＞0，解得：x＜﹣1，令f′（x）＜0，解得：﹣1＜x＜0，故f（x）在（﹣∞，﹣1）递增，在（﹣1，0）递减；（2）g（x）=﹣1的x有四个，∴f2（x）+tf（x）﹣1=0有4个根，f（x）=|x•e x|的图象如图：在x＜0时，有最大值f（﹣1）=，故要使有四个解，则f2（x）+tf（x）﹣1=0一根在（0，）中间，一根在（，+∞），∴+t+1＜0，∴t﹣＜﹣﹣1，∴t＜﹣﹣e=﹣．[选修4-4：坐标系与参数方程]22．在直角坐标系xOy中，曲线，曲线C2的参数方程为：，（θ为参数），以O为极点，x轴的正半轴为极轴的极坐标系．（1）求C1，C2的极坐标方程；（2）射线与C1的异于原点的交点为A，与C2的交点为B，求|AB|．【考点】参数方程化成普通方程；简单曲线的极坐标方程．【分析】（1）将代入曲线C1方程可得曲线C1的极坐标方程．曲线C2的普通方程为，将代入，得到C2的极坐标方程．（2）射线的极坐标方程为，与曲线C1的交点的极径为ρ1，射线与曲线C2的交点的极径满足，解得ρ2．可得|AB|=|ρ1﹣ρ2|．【解答】解：（1）将代入曲线C1方程：（x﹣1）2+y2=1，可得曲线C1的极坐标方程为ρ=2cosθ，曲线C2的普通方程为，将代入，得到C2的极坐标方程为ρ2（1+sin2θ）=2．（2）射线的极坐标方程为，与曲线C1的交点的极径为，射线与曲线C2的交点的极径满足，解得所以．[选修4-5：不等式选讲]23．已知函数f（x）=|x﹣a|+|x+5﹣a|（1）若不等式f（x）﹣|x﹣a|≤2的解集为[﹣5，﹣1]，求实数a的值；（2）若∃x0∈R，使得f（x0）＜4m+m2，求实数m的取值范围．【考点】绝对值不等式的解法．【分析】（1））问题转化为|x+5﹣a|≤2，求出x的范围，得到关于a的不等式组，解出即可；（2）问题转化为4m+m2＞f（x）min，即4m+m2＞5，解出即可．【解答】解：（1）∵|x+5﹣a|≤2，∴a﹣7≤x≤a﹣3，∵f（x）﹣|x﹣a|≤2的解集为：[﹣5，﹣1]，∴，∴a=2．（2）∵f（x）=|x﹣a|+|x+5﹣a|≥5，∵∃x0∈R，使得f（x0）＜4m+m2成立，∴4m+m2＞f（x）min，即4m+m2＞5，解得：m＜﹣5，或m＞1，∴实数m的取值范围是（﹣∞，﹣5）∪（1，+∞）．2017年4月2日。
2017年江苏省专转本英语模拟试题第二套(含答案)
2017年江苏省专转本英语模拟试题2第I卷（共100分）注意事项：1、答第I卷前，考生务必按规定要求填涂答题卡上的姓名、准考证号等项目及卷首和第7页上的姓名；2、用铅笔把答题卡上相应题号中正确答案的标号涂黑。
答案不涂在答题卡上，成绩无效。
Part I Reading Comprehension （共20小题，每小题2分，共40分）Directions: In this part there are four passages. Each passage is followed by four comprehension questions. Read the passage and answer the questions. Then mark your answer on the Answer Sheet.Passage OneQuestions 1 to 5 are based on the following passage:Real policemen hardly recognize any resemblance between their lives and what they see on TV – if they ever get home in time. There are similarities, of course, but the policemen don’t think much of them.The first difference is that a policemen’s real life centers around the law. Most of his training is in criminal law. He has to know exactly what actions are crimes and what evidence can be used to prove them in court. He has to know nearly as much law as a professional lawyer, and what is more, he has to apply it on his feet, in the dark and rain, running down a narrow street after someone he wants to talk to.Little of his time is spent in chatting to pretty girls or in dramatic confrontations (对峙) with desperate criminals. He will spend most of his working life typing millions of words on thousands of forms about hundreds of sad, unimportant people who are guilty – or not – of stupid, minor crimes.Most television crime drama is about finding the criminal: as soon as he’s arrested, the story is over, in real life, finding criminals is seldom much of a problem. Except in very serious cases like murders and terrorist attacks – where failure to produce results reflects on the fame of the police – little effort is spent on searching.Having made an arrest, a detective (侦探) really starts to work. He has to prove his case in court and, to do that, he often has to gather a lot of different evidence. So, as well as being overworked, a detective has to be out at all hours of the day and night interviewing his witness and persuading them, usually against their own interests, to help him.1. What does the first paragraph tell us about policemen?A、They often watch TV.B、They like watching TV.C、They are too busy to watch TV.D、They hate seeing themselves on TV.2. Why does the writer mention a lawyer in the second paragraph?A、To show that a lawyer’s job is more comfortable.B、To emphasize that policemen are physically strong.C、To compare a lawyer’s with policemen’s.D、To indicate that a lawyer’s job is less important than a policeman’s.3. What do real policemen do at work?A、They often deal with robbers and thieves.B、They talk with a lot of victims and visitors.C、They don’t deal with serious crimes very often.D、The usually stay in their office studying cases.4. What does the passage say about a detective?A、His job is to make arrests.B、He is good at finding criminals.C、He has to prove his case in court.D、He visits and helps his witnesses.5. What is the main idea of the passage?A、It is hard for policemen to do their job well.B、Policemen keep in touch with a lot of people.C、Policemen are people that we admire and respect.D、Real policemen’s life is different from what is shown on TV.Passage TwoQuestions 6 to 10 are based on the following passage:Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of fingerprints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.The structure on a person’s fingers does not change with growth and is not affected by superficial injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new skin which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own fingerprints but this is a dangerous and rare step to take.Fingerprints can be made easily with printer’s ink. They can be recorded easily. With special methods, identification (辨识) can be achieved successfully within a short time. Because of the simplicity and economy of this system, fingerprints have often been used as a method of solving criminal cases. A suspected man denies a charge, but his fingerprints can prove who he is even if his appearance has been changed by age or accidents.When a suspect leaves fingerprints behind at the scene of crime, they are difficult to detect with the naked eye. Special techniques are used to “develop” them. Someof the marks found are incomplete but identification is possible if a print in the size of a quarter of an inch square can be obtained.6. Which of the following is NOT true of fingerprints?A、They vary from person to person.B、They are easily hidden and removed.C、Their uniqueness is beyond explanation.D、They remain unchanged throughout one’s life.7. What does “superficial injuries” in the second paragraph mean?A、“injuries caused by accident”B、“injuries in inner skin”C、“severe injuries in the skin”D、“injuries on the surface of the skin”8. Why do policemen often use fingerprints in their investigation?A、Because it is the only way to identity the suspect.B、Because it is the easiest way to solve a criminal case.C、Because they can be easily recorded with printer’s ink.D、Because they can help policemen to identify their owners.9. What is the main idea of the last paragraph?A、It is difficult to see fingerprints with human eyes.B、There are special ways to recover a suspect’s fingerprints.C、Even a small part of a fingerprint is useful for identificationD、Suspects usually try to avoid leaving their fingerprints at the scene.10. Which of the following is the best title of the passage?A、Fingerprints and Their UseB、Policemen and FingerprintsC、Fingerprints Are Useful EvidenceD、Fingerprints Identify Criminals without MistakePassage ThreeQuestions 11 to 15 are based on the following passage:Because of satellite links which now enable broadcast news organizations to originate live programming from any part of the globe, the entire world is becoming one giant sound stage for television news. As a result, Marshall McLean's reference to the post-television world as being a single "global village" is gaining new acceptance and Shakespeare's famous line, "all the world's a stage," has taken on an interesting new twist in meaning.But, beyond the philosophical dimensions of global television communications there are some dramatic, political implications. Even before today's worldwide satellite links were possible, the growing effect of broadcast news technology on national and international politics was becoming increasingly evident.Because television is a close-up medium and a medium that seems to most readily involve emotions, it is most effective when it is revealing the plights of people. It was probably the appalling footage of the Nazi death camps that first demonstrated the power of motion pictures and television to affect the collective consciousness of a world audience. In the United States during the 50's and 60's the power of television to stir the consciousness of large numbers of people was demonstrated in another way. Night after night graphic news footage(英尺数) of the civil rights struggle was brought into U.S. homes.Years later, this role was to take on a new and even more controversial dimension during the Vietnam War. Reading about war was one thing; but war took on a deeper and more unsavory(令人讨厌的) dimension when it was exported directly into U.S. living rooms night after night by television. Public opinion eventually turned against the war and to some measure against President Johnson who was associated with it. As a result of the public opinion backlash(消极反应) during these times, the Pentagon was thereafter much more careful to control what foreign correspondents and TV crews would be allowed to see and report.It was during this time that President Carter brought the issue of human rights to the centre of his foreign policy, and, to some degree, to the centre of internationalpolitics. "Human rights is the soul of our foreign policy," Carter said. "Of all human rights the most basic is to be free of arbitrary violence, whether that violence comes from government, from terrorists, from criminals, or from self-appointed messiahs(救世主) operating under the cover of politics or religion."Although political viewpoints have changed since then， because of the emotional nature of human rights, this has emerged as the "soul" of television news. The transgression(侵犯) of human rights has been the focus of many, if not most，major international television news stories. The reporting of these stories has created outrage in the world, prompted attempts at censorship by dictators, and in many cases resulted in the elimination of human rights abuses.11. The passage is mainly about____.A the evolution of international politics in the United StatesB the broadcast media's growing role in international politicsC the concern for human rights as is shown in broadcast mediaD the impact of global television communication on viewers'emotions12. The introduction of satellite technology into television broadcast____.A confirmed what Shakespeare said long agoB changed the way television news is handledC improved the sound effect of television newsD initiated a shift of emphasis to international politics13. The civil rights struggle to the 50's and 60's won public support partly owing to____.A the viewing of the Nazi atrocities on TVB the news broadcast through satellite linksC the impact of televised news on emotionsD the support provided by a world audience14. President Carter's major contribution to broadcast news was that heA eliminated any kind of censorship of broadcast newsB encouraged news coverage of the Vietnam War and ended itC proclaimed the Pentagon's control over the media unconstitutionalD made the transgression of human rights a global focus in broadcast news15. The television coverage of human rights issues has all the effects EXCEPT_____.A reduction in the cases of human rights violationB prompted attempts at censorship by dictatorsC increased respect for different cultures and attitudesD heightened international concern over human rights abusesPassage FourQuestions 16 to 20 are based on the following passage:People with disabilities comprise a large part of the population. It is estimated that over 35 million Americans have physical, mental, or other disabilities. About half of these disabilities are “developmental”, i. e. , they occur prior to the individual’s twenty-second birthday, often form genetic conditions, and are severe enough to effect three or more areas of development, such as mobility, communication, employment, etc. Most other disabilities are considered “adventitious”, i.e. , accidental or caused by outside forces.Prior to the 20th century, only a small percentage of people with disabilities survived for long. Medical treatment for these disabilities was unavailable. Advancements in medicine and social services have created a climate in which people with disabilities can expert to have such basic needs as food, shelter, and medical treatment. Unfortunately, these basic are often not available. Civil liberties such as the right to vote, marry, get an education, and again employment have historically been denied on the basic of disability.In recent decades, the disability rights movement has been organized to flight against these infringements (侵害) of civil rights. Congress responded by passing major legislation recognizing people with disabilities as protected class under civil rights statutes.Still today, people with disabilities must fight to live their lives independently. It is estimated that more than half of qualified Americans with disabilities are unemployed, and a majority of those who do work are underemployed. About two-thirds live at or below the official poverty level.Significant barriers, especially in transportation and public awareness, prevent disabled people from taking part in society. For example, while no longer prohibited by law from marrying, a person with no access to transportation is effectively excluded from community and social activities which might lead to the development of long-term relationships.It will only be when public attitudes advance as far as laws are that disabled people will be fully able to take to their right place in society.16. ”developmental” disability .A. develops very slowly over timeB. is caused forcesC. occurs in youth and affects developmentD. is getting more and more severe17. Most disabled people used to die early because .A. disabilities destroyed major bodily functionsB. they were not very well looked afterC. medical techniques were not availableD. they were too poor to get proper treatment18. In the author’s opinion, to enable the disabled people to take their rightful place in society, .A. more laws should be passedB. public attitudes should be changedC. government should provide more aidsD. more public facilities should be act up19. Which of the following cannot be inferred from the passage?A. Many disabled people may remain single for their whole life.B. The public tends to look down upon the disabled people.C. The disabled people feel inferior to those surrounding them.D. Discriminatory (有差别的) laws prevent the disabled from mixing with others.20. The best title for this passage might be .A. Handicaps of People with DisabilitiesB. The Difficulties of the DisabledC. The Causes for DisabilitiesD. Medical Treatments for DisabilitiesPart II Vocabulary21.The general manager is always busy. You should phone his secretary to make an _____ if you want to see him.A、appointmentB、offerC、interviewD、opportunity22.My suitcase was so full that it didn’t have _____ for anything else.A、spotB、roomC、placeD、area23.You are a little overweight. I suggest you _____ Rosie’s example and start doing regular exercise.A、setB、copyC、followD、give24.In 1969 two American astronauts _____ on the moon and walked on its rocky, dusty surface.A、concentrateB、basedC、landedD、focused25.– Do you let your kids go out alone at night? – _____ not!A、AbsolutelyB、ExtremelyC、ActuallyD、Eventually26.It had never _____ to him that he might be falling in love with her.A、happenedB、referredC、occurredD、came27.Due to circumstances _____ our control the performance had to be cancelled.A、beyondB、aboveC、overD、under28.If you’re looking for a job you need to be _____ about where you’re prepared to work.A、changeableB、availableC、flexibleD、mobile29.The woman’s illness _____ the doctors; they couldn’t find the cause.A、attractedB、excitedC、puzzledD、interrupted30.You’d better have the pipe checked today. It has kept _____ for three days.A、pouringB、leakingC、spittingD、dropping31.This house has many interesting _____. The one I like most is a large Victorian fireplace.A、appearancesB、featuresC、mysteriesD、aspects32.Students from poor families can apply for _____ aid from the government to support their education.A、legalB、firstC、financialD、economic33.I didn’t expect the restaurant would _____ us ￡50 for the wine.A、spendB、chargeC、costD、take34.Sorry I never drink milk; it doesn’t _____ me.A、agree toB、agree onC、agree withD、agree about35.This nurse was _____ when you were sent to the hospital.A、in turnB、in practiceC、on dutyD、on business36.Getting young people together will help to _____ the barriers between them.A、break offB、break downC、break upD、break out37.You can go out, _____ you promise to come back before 11 o’clock.A、as far asB、as soon asC、so far asD、so long as38.Caroline doesn’t have a natural gift for music but she ______ it with hard work.A、makes forB、makes intoC、makes up forD、makes use of39.It is quite clear that his only reason for investing in the company is to _____.A、take it overB、take it downC、take it inD、take it off40.Excuse me, you can complain to me; I’m the person _____.A、in caseB、in chargeC、in effectD、in force41. The doctor promised to keep all the family members _____ of how the operation was going on.A、informingB、to be informedC、informedD、to inform42. Mr. Smith stayed up late on Friday, _____ a long speech for the president.A、preparedB、to prepareC、preparing43. The angry demonstrators demanded that the military government _____ all political prisoners.A、freeB、must freeC、freedD、would44. You will get your camera next Monday. We regret any inconvenience _____ to you.A、having causedB、causingC、to be causedD、caused45. Now everything is clear and there is no point _____ the truth.A、in denyingB、to denyC、by denyingD、deny46. _____ is known to all, Lu Xun is one of the greatest writers in China.A、ItB、ThatC、AsD、Which47. Medical treatment varies greatly from state to state in this country, _____ is really confusing to meA、thisB、itC、thatD、which48. Brown’s father told him he could have _____ he wanted for birthday.A、whereverC、wheneverD、whichever49. The day will come sooner or later _____ I buy a boat and sail around the world.A、sinceB、asC、untilD、when50. At the end of last month, they _____ thirty percent of the production plan.A、will finishB、have finishedC、had finishedD、finished51. If I _____ younger and in better condition, I would have run after the thief with others.A、wereB、wasC、had beenD、would be52. _____ the telephone was invented in the nineteenth century _____ speech sounds over a longA、Not until…could people sendB、Not until…people could sendC、Until…could people not sendD、Until…people could send53. Though dress may be, _____ some extent, helpful in judging a person, that alone will not be sufficient.A、forB、toC、inD、by54. Tom didn’t believe a word she said and _____.A、neither did the policeB、neither the police didC、the police didn’t neitherD、the police did neithe55. The _____ they arrived at the hotel, couples were presented with a bunch of roses.A、momentB、timeC、occasionD、chance56. I talked with Julia in the classroom just a minute ago. She _____ to the cinema.A、hadn’t goneB、shouldn’t have goneC、can’t have goneD、wouldn’t have gone57. A survey was carried out on children’s attitudes to violence on television, _____ was surprising.A、the resultB、its resultC、which resultsD、the result of which58. Scientists have found that there are four levels of sleep, each _____ a little deeper than the one before.A、isB、wasC、beingD、to be59. We lost our way in the desert, and _____ made matters worse was that we ranout of water.A、itB、thatC、whichD、what60. In the Middle Ages people believed it was the earth, not the sun, _____ the center of our planetary system.A、was thatB、that wasC、wasD、thatPart III Cloze （共20小题，每小题1分，共20分）Directions: There are twenty blanks in the following passage. For each blank there are four choices. Choose the one that best fits into the passage and then marks your answer on the Answer Sheet.If you were to begin a new job tomorrow, you would bring with you some basic strengths and weaknesses. Success or 61 in your work would depend, to 62 great extent, 63 your ability to use your strengths and weaknesses to the best advantage. 64 the utmost importance is your attitude. A person 65 begins a job convinced that he isn't going to like it or is 66 that he is going to ail is exhibiting a weakness which can only hinder his success. On the other hand, a person who is secure 67 his belief that he is probably as capable 68 doing the work as anyone else and who is willing to make a cheerful attempt 69 it possesses a certain strength of purpose. The chances are that he will do well. 70 the prerequisite skills for a particular job is strength. Lacking those skills is obviously a weakness. A bookkeeper who can't add or a carpenter who can't cut a straight line with a saw 71 hopeless cases. This book has been designed to help you capitalize 72 the strength and overcome the73 that you bring to the job of learning. But in groups to measure your development, you must first 74 stock of somewhere you stand now. 75 we get further along in the book, we'llbe 76 in some detail with specific processes for developing and strengthening 77 skills. However, 78 begin with, you should pause 79 examine your present strengths and weaknesses in three areas that are critical to your success or failure in school: your 80 , your reading and communication skills, and your study habits.61.A.improvement B.victory C.failure D.achievement62.A.a B.the C.some D.certain63.A.in B.on C.of D.to64.A.Out of B.Of C.To D.Into65.A.who B.what C.that D.which66.A.ensure B.certain C.sure D.surely67.A.onto B.on C.off D.in68.A.to B.at C.of D.for69.A.near B.on C.by D.at70.A.Have B.Had C.Having D.Had been71.A.being B.been C.are D.is72.A.except B.but C.for D.on73.A.idea B.weakness C.strength D.advantage74.A.make B.take C.do D.give75.A.as B.till C.over D.out76.A.deal B.dealt C.be dealt D.dealing77.A.learnt B.learned C.learning D.learn78.A.around B.to C.from D.beside79.A.to B.onto C.into D.with80.A.intelligence B.work C.attitude D.weaknessPart V Translation from English into Chinese81. He has to know exactly what actions are crimes and what evidence can be used to prove them in court. (Passage one)82. Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. (Passage two)83. Years later, this role was to take on a new and even more controversial dimension during the Vietnam War. (Passage three)84. It is estimated that more than half of qualified Americans with disabilities are unemployed, and a majority of those who do work are underemployed. (Passage four) 85. It will only be when public attitudes advance as far as laws are that disabled people will be fully able to take to their right place in society. (Passage four)Part VI Translation from Chinese into English86. 和其它品牌相比，我们的电脑质量上乘，价格富有竞争力。
深圳市中考物理模拟试卷(2)
2017年深圳市中考物理模拟试卷（二）姓名学号 （满分：60分）得分 一、选择题（每小题1.5分，共24分。
每小题只有一个选项符合题意） 1．我们生活在声的海洋中。
关于声音，下列说法中正确的是（ ）A ．只要物体振动，我们就能听到声音B ．街头安装的噪声监测仪可以减弱噪声C ．声音的响度越大，其音调越高D ．“闻其声而知其人”是根据声音的音色来判断的 2．回想你上体育课时的情景，可以联想到相关的物理知识，下列说法错误的是（ ） A ．跳远时，加速助跑是为了获得更大的惯性 B ．运动鞋底的花纹可以增大摩擦 C ．踢足球时，利用了力可以使物体的运动状态发生改变 D ．起跑时用力蹬地，利用了力的作用是相互的原理3．在如图1所示的四种剪刀中，正确使用时，属于费力杠杆的是（ ）4．如图2所示，两个质量和底面积均相同，但形状不同的容器放在水平桌面上，其内分别装有质量相等的甲、乙两种液体，它们的液面在同一水平面上。
若液体对容器底部的压强分别为p 甲和p 乙，则p 甲和p 乙的关系为（ ） A ．p 甲>p 乙 B ．p 甲<p 乙 C ．p 甲=p 乙 D ．无法确定★5．将一重为1000N 的建筑材料匀速运送到6m 高的楼上，站在楼上时，一个人可产生的平均拉力为150N 。
建筑工人用一个重100N 的滑轮和一根足够长的绳子，用图3所示的滑轮将建筑材料拉到楼上。
如果不计绳重和摩擦，以下说法中正确的是（ ）A ．需要4个人，机械效率为91%B ．需要4个人，机械效率为83%C ．需要3个人，机械效率为91%D ．需要3个人，机械效率为83%6．海水流动所产生的海流能蕴藏无比巨大的能量，下列说法正确的是（ ）A ．海流能是不可再生能源B ．海流能的应用会严重污染环境C ．海流能不能转化成电能D ．海流能的应用具有广阔前景7．用一根与毛皮摩擦过的橡胶棒靠近一轻质小球，发现两者互相排斥，由此可鉴定（ ） A ．小球一定带正电 B ．小球一定带负电C ．小球可能带负电，也可能带正电D ．小球一定不带电 8．如图4所示为实物图，则图5中的电路图与它相对应的是（ ）9．如图6甲所示的电路是检测汽车驾驶员是否酒驾的原理图。
2017考研《英语》基础阶段模拟试题及答案详解（2）
相关推荐：新东⽅校推荐： 1.本试卷考试时间150分钟，满分100分。
2.试卷后⾯附有参考答案，供学员测试后核对。
Section I Structure and Vocabulary In each question, decide which of the four choices given will most suitably complete the sentence if inserted at the place marked. Put your choice on the answer sheet. (20 points) 1. A variety of small clubs can provide _____ opportunities for leadership, as well as for practice in successful group dynamics. [A] durable [B] excessive [C] surplus [D] multiple 2. By turning this knob to the right you can _____ the sound from this radio. [A] amplify [B] enlarge [C] magnify [D] reinforce 3. Under the _____ confronting them it was impossible to continue the strike any longer. [A] surroundings [B] settings [C] circumstances [D] environments 4. We have the system of exploitation of man by man. [A] cancelled [B] abolished [C] refused [D] rejected 5. We shall probably never be able to _____ the exact nature of these sub-atomic particles. [A] assert [B] impart [C] ascertain [D] notify 6. This diploma _____ that you have completed high school. [A] proves [B] certifies [C] secures [D] approves 7. Up until that time, his interest had focused almost _____ on fully mastering the skills and techniques of his craft. [A] restrictively [B] radically [C] inclusively [D] exclusively 8. That sound doesn’t _____ in his language so it’s difficult for him to pronounce. [A] happen [B] take place [C] occur [D] run 9. The security guard _____ two men who were yelling in the courtroom. [A] expelled [B] propelled [C] repelled [D] dispelled 10. In most cases politicians are _____ as they seldom tell the truth. [A] credible [B] credulous [C] incredulous [D] incredible 11. He soon received promotion, for his superiors realized that he was a man of considerable _____. [A] future [B] possibility [C] ability [D] opportunity 12. Britain has the highest _____ of road traffic in the world—over 60 cars for every mile of road. [A] density [B] intensity [C] popularity [D] prosperity 13. CCTV programs are _____ by satellite to the remotest areas in the country. [A] transferred [B] transported [C] transformed [D] transmitted 14. An energy tax would curb ordinary air pollution, limit oil imports and cut the budget _____. [A] disposition [B] deficit [C] defect [D] discrepancy 15. The government will _____ a reform in the educational system. [A] initiate [B] initial [C] initiative [D] intimate 16. Estimates _____ anywhere from 600 000 to 3 million. Although the figure may vary, analysts do agree on another mater: that the number of the homeless is increasing. One of the federal government’s studies predicts that the number of the homeless will reach nearly 19 million by the end of this decade. [A] cover [B] change [C] differ [D] range 17. As time went by, computers became smaller and more powerful, and they became “personal” too, as well as institutional, with display becoming sharper and storage _____ increasing. [A] ability [B] capability [C] capacity [D] faculty 18. It soon becomes clear that the interior designer’s most important basic _____ is the function of the particular space. For example, a theater with poor sight lines, poor sound-shaping qualities, and too few entries and exits will not work for its purpose, no matter how beautifully it might be decorated. [A] care [B] concern [C] attention [D] intention 19. The purpose of non-REM sleep is even more mysterious. The new experiments, such as those _____ for the first time at a recent meeting or the society for Sleep Research in Minneapolis, suggest fascinating explanations for the purpose of non-REM sleep. [A] maintained [B] described [C] settled [D] afforded 20. Changes in the social structure may indirectly _____ juvenile crime rates. For example, changes in the economy that lead to fewer job opportunities for youth and rising unemployment in general make gainful employment increasingly difficult to obtain. [A] affect [B] reduce [C] check [D] reflect Section II Use of English Read the following text. Choose the best word (s) for each numbered blank and mark [A], [B], [C] or [D] on ANSWER SHEET. (20 points) Health implies more than physical fitness. It also implies mental and emotional well-being. An angry, frustrated, emotionally 21 person in good physical condition is not 22 healthy. Mental health, therefore, has much to do 23 how a person copes with the world as s/he exists. Many of the factors that 24 physical health also affect mental and emotional well-being. Having a good self-image means that people have positive 25 pictures and good, positive feelings about themselves, about what they are capable 26 , and about the roles they play. People with good self-images like themselves, and they are 27 like others. Having a good self-image is based 28 a realistic, as well as positive, or optimistic 29 of one’s own worth and value and capabilities. Stress is an unavoidable, necessary, and potentially healthful 30 of our society. People of all ages 31 stress. Children begin to 32 stress during prenatal development and during childbirth. Examples of stress-inducing 33 in the life of a young person are death of a pet, pressure to 34 academically, the divorce of parents, or joining a new youth group. The different ways in which individuals 35 to stress may bring healthful or unhealthy results. One person experiencing a great deal of stress may function exceptionally well 36 another may be unable to function at all. If stressful situations are continually encountered, the individual’s physical, social, and mental health are eventually affected. Satisfying social relations are vital to 37 mental and emotional health. It is believed that in order to 38 , develop, and maintain effective and fulfilling social relationships people must 39 the ability to know and trust each other, understand each other, influence, and help each other. They must also be capable of 40 conflicts in a constructive way. 21. [A] unstable [B] unsure [C] imprecise [D] impractical 22. [A] normally [B] generally [C] virtually [D] necessarily 23. [A] on [B] at [C] to [D] with 24. [A] signify [B] influence [C] predict [D] mark 25. [A] intellectual [B] sensual [C] spiritual [D] mental 26. [A] to be doing [B] with doing [C] to do [D] of doing 27. [A] able better to [B] able to better [C] better to able [D] better able to 28. [A] on [B] from [C] at [D] about 29. [A] assessment [B] decision [C] determination [D] assistance 30. [A] ideality [B] realization [C] realism [D] reality 31. [A] occur [B] engage [C] confront [D] encounter 32. [A] tolerate [B] sustain [C] experience [D] undertake 33. [A] evidence [B] accidents [C] adventures [D] events 34. [A] acquire [B] achieve [C] obtain [D] fulfill 35. [A] respond [B] return [C] retort [D] reply 36. [A] why [B] when [C] while [D] where 37. [A] sound [B] all-round [C] entire [D] whole 38. [A] illuminate [B] enunciate [C] enumerate [D] initiate 39. [A] access [B] assess [C] process [D] possess 40. [A] resolving [B] saluting [C] dissolving [D] solving Section III Reading Comprehension Read the following four texts. Answer the questions below each text by choosing [A], [B], [C] or [D] Mark your answers on ANSWER SHEET (40 points) Text 1 The period of adolescence, i.e., the period between childhood and adulthood, may be long or short, depending on social expectations and on society’s definition as to what constitutes maturity and adulthood. In primitive societies adolescence is frequently a relatively short period of time, while in industrial societies with patterns of prolonged education coupled with laws against child labor, the period of adolescence is much longer and may include most of the second decade of one’s life. Furthermore, the length of the adolescent period and the definition of adulthood status may change in a given society as social and economic conditions change. Examples of this type of change are the disappearance of the frontier in the latter part of the nineteenth century in the United States, and more universally, the industrialization of an agricultural society. In modern society, ceremonies for adolescence have lost their formal recognition and symbolic significance and there no longer is agreement as to what constitutes initiation ceremonies. Social ones have been replaced by a sequence of steps that lead to increased recognition and social status. For example, grade school graduation, high school graduation and college graduation constitute such a sequence, and while each step implies certain behavioral changes and social recognition, the significance of each depends on the socio-economic status and the educational ambition of the individual. Ceremonies for adolescence have also been replaced by legal definitions of status roles, right, privileges and responsibilities. It is during the nine years from the twelfth birthday to the twenty-first that the protective and restrictive aspects of childhood and minor status are removed and adult privileges and responsibilities are granted. The twelve-year-old is no longer considered a child and has to pay full fare for train, airplane, theater and movie tickets. Basically, the individual at this age loses childhood privileges without gaining significant adult rights. At the age of sixteen the adolescent is granted certain adult rights which increases his social status by providing him with more freedom and choices. He now can obtain a driver’s license; he can leave public schools; and he can work without the restrictions of child labor laws. At the age of eighteen the law provides adult responsibilities as well as rights; the young man can now be a soldier, but he also can marry without parental permission. At the age of twenty-one the individual obtains his full legal rights as an adult. He now can vote, he can buy liquor, he can enter into financial contracts, and he is entitled to run for public office. No additional basic rights are acquired as a function of age after majority status has been attained. None of these legal provisions determine at what point adulthood has been reached but they do point to the prolonged period of adolescence. 41. The period of adolescence is much longer in industrial societies because ________. [A] the definition of maturity has changed [B] the industrialized society is more developed [C] more education is provided and laws against child labor are made(C) [D] ceremonies for adolescence have lost their formal recognition and symbolic significance 42. Former social ceremonies that used to mark adolescence have given place to ________. [A] graduations from schools and colleges [B] social recognition [C] socio-economic status(A) [D] certain behavioral changes 43. No one can expect to fully enjoy the adulthood privileges until he is ________. [A] eleven years old [B] sixteen years old [C] twenty-one years old(C) [D] between twelve and twenty-one years old 44. Starting from 22, ________. [A] one will obtain more basic rights [B] the older one becomes, the more basic rights he will have [C] one won’t get more basic rights than when he is 21(C) [D] one will enjoy more rights granted by society 45. According to the passage, it is true that ________. [A] in the late 19th century in the United States the dividing line between adolescence and adulthood no longer existed [B] no one can marry without the permission of his parents until the age of twenty-one [C] one is considered to have reached adulthood when he has a driver’s license(A) [D] one is not free from the restrictions of child labor laws until he can join the arm Text 2 Well, no gain without pain, they say. But what about pain without gain? Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real. The official statistics are mildly discouraging. They show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, product i v i t y h a s i n c r e a s e d b y a b o u t 2 % a y e a r , w h i c h i s m o r e t h a n t w i c e t h e 1 9 7 8 - 1 9 8 7 a v e r a g e . T h e t r o u b l e i s t h a t p a r t o f t h e r e c e n t a c c e l e r a t i o n i s d u e t o t h e u s u a l r e b o u n d t h a t o c c u r s a t t h i s p o i n t i n a b u s i n e s s c y c l e , a n d s o i s n o t c o n c l u s i v e e v i d e n c e o f a r e v i v a l i n t h e u n d e r l y i n g t r e n d . T h e r e i s , a s R o b e r t R u b i n , t h e t r e a s u r y s e c r e t a r y , s a y s , a d i s j u n c t i o n b e t w e e n t h e m a s s o f b u s i n e s s a n e c d o t e t h a t p o i n t s t o a l e a p i n p r o d u c t i v i t y a n d t h e p i c t u r e r e f l e c t e d b y t h e s t a t i s t i c s . / p > p > 0 0 S o m e o f t h i s c a n b e e a s i l y e x p l a i n e d . N e w w a y s o f o r g a n i z i n g t h e w o r k p l a c e a l l t h a t r e - e n g i n e e r i n g a n d d o w n s i z i n g a r e o n l y o n e c o n t r i b u t i o n t o t h e o v e r a l l p r o d u c t i v i t y o f a n e c o n o m y , w h i c h i s d r i v e n b y m a n y o t h e r f a c t o r s s u c h a s j o i n t i n v e s t m e n t i n e q u i p m e n t a n d m a c h i n e r y , n e w t e c h n o l o g y , a n d i n v e s t m e n t i n e d u c a t i o n a n d t r a i n i n g . M o r e o v e r , m o s t o f t h e c h a n g e s t h a t c o m p a n i e s m a k e a r e i n t e n d e d t o k e e p t h e m p r o f i t a b l e , a n d t h i s n e e d n o t a l w a y s m e a n i n c r e a s i n g p r o d u c t i v i t y : s w i t c h i n g t o n e w m a r k e t s o r i m p r o v i n g q u a l i t y c a n m a t t e r j u s t a s m u c h . / p > p > 0 0 T w o o t h e r e x p l a n a t i o n s a r e m o r e s p e c u l a t i v e . F i r s t , s o m e o f t h e b u s i n e s s r e s t r u c t u r i n g o f r e c e n t y e a r s m a y h a v e b e e n i n e p t l y d o n e . S e c o n d , e v e n i f i t w a s w e l l d o n e , i t m a y h a v e s p r e a d m u c h l e s s w i d e l y t h a n p e o p l e s u p p o s e . / p > p > 0 0 L e o n a r d S c h l e s i n g e r , a H a r v a r d a c a d e m i c a n d f o r m e r c h i e f e x e c u t i v e o f A u B o n g P a i n , a r a p i d l y g r o w i n g c h a i n o f b a k e r y c a f e s , s a y s t h a t m u c h r e - e n g i ne e r i n g h a s b e e n c r u d e . I n m a n y c a s e s , h e b e l i e v e s , t h e l o s s of r e v e n u e h a s b e e ng r e a t e r th a n t h e r e d u c ti o n s i n c o s t . H i s c o l l e a g u e , M i c h a e l B e e r , s a y s t h a t f a r t o o m a n y c o m p a n i e s h a v e a p p l i e d r e - e n g i n e e r i n g i n a m e c h a n i s t i c f a s h i o n , c h o p p i n g o u t c o s t s w i t h o u t g i v i n g s u f f i c i e n t t h o u g h t t o l o n g t e r m p r o f i t a b i l i t y . B B D O s A l R o s e n s h i n e i s b l u n t e r . H e d i s m i s s e s a l o t o f t h e w o r k o f r e - e n g i n e e r i n g c o n s u l t a n t s a s m e r e r u b b i s h t h e w o r s t s o r t o f a m b u l a n c e c a s h i n g . / p > p > 0 0 4 6 . A c c o r d i n g t o t h e a u t h o r , t h e A m e r i c a n e c o n o m i c s i t u a t i o n i s _ _ _ _ _ _ _ _ . / p > p > 0 0 [ A ] n o t a s g o o d a s i t s e e m s / p > p > 0 0 [ B ] a t i t s t u r n i n g p o i n t / p > p > 0 0 [ C ] m u c h b e t t e r t h a n i t s e e m s ( A ) / p > p > 0 0 [ D ] n e a r t o c o m p l e t e r e c o v e r y / p > p > 0 0 4 7 . T h e o f f i c i a l s t a t i s t i c s o n p r o d u c t i v i t y g r o w t h _ _ _ _ _ _ _ _ . / p > p > 0 0 [ A ] e x c l u d e t h e u s u a l r e b o u n d i n a b u s i n e s s c y c l e / p > p > 0 0 [ B ] f a l l s h o r t o f b u s i n e s s m e n s a n t i c i p a t i o n / p > p > 0 0 [ C ] m e e t t h e e x p e c t a t i o n o f b u s i n e s s p e o p l e ( B ) / p > p > 0 0 [ D ] f a i l t o r e f l e c t t h e t r u e s t a t e o f e c o n o m y / p > p > 0 0 4 8 . T h e a u t h o r r a i s e s t h e q u e s t i o n w h a t a b o u t p a i n w i t h o u t g a i n ? b e c a u s e _ _ _ _ _ _ _ _ . / p > p > 0 0 [ A ] h e q u e s t i o n s t h e t r u t h o f n o g a i n w i t h o u t p a i n / p > p > 0 0 [ B ] h e d o e s n o t t h i n k t h e p r o d u c t i v i t y r e v o l u t i o n w o r k s / p > p > 0 0 [ C ] h e w o n d e r s i f t h e o f f i c i a l s t a t i s t i c s a r e m i s l e a d i n g ( B ) / p > p > 0 0 [ D ] h e h a s c o n c l u s i v e e v i d e n c e f o r t h e r e v i v a l o f b u s i n e s s e s / p > p > 0 0 4 9 . W h i c h o f t h e f o l l o w i n g s t a t e m e n t s i s N O T m e n t i o n e d i n t h e p a s s a g e ? / p > p > 0 0 [ A ] R a d i c a l r e f o r m s a r e e s s e n t i a l f o r t h e i n c r e a s e o f p r o d u c t i v i t y . / p > p > 0 0 [ B ] N e w w a y s o f o r g a n i z i n g w o r k p l a c e s m a y h e l p t o i n c r e a s e p r o d u c t i v i t y . / p > p > 0 0 [ C ] T h e r e d u c t i o n o f c o s t s i s n o t a s u r e w a y t o g a i n l o n g t e r m p r o f i t a b i l i t y . ( A ) / p > p > 0 0 [ D ] T h e c o n s u l t a n t s a r e a b u n c h o f g o o d - f o r - n o t h i n g s . / p > p > 0 0 5 0 . A c c o r d i n g t o t h e p a s s a g e , t h e a u t h o r s a t t i t u d e t o w a r d s t h e p r o d u c t i v i t y r e v o l u t i o n i n t h e U . S . A i s _ _ _ _ . / p > p > 0 0 [ A ] b i a s e d / p > p > 0 0 [ B ] o p t i m i s t i c / p > p > 0 0 [ C ] a m b i g u o u s / p >。
2017年公安机关人民警察基本级执法资格考试模拟试卷(二)及答案
2017年基本级执法资格考试模拟试题（二）一、判断题（每题1分，共20分）1．被害人在追诉期限内提出控告，人民法院、人民检察院、公安机关应当立案而不予立案的，不受追诉期限的限制。
（）2．某公安局办案民警小施向被处罚人送达法律文书，因送达期间的最后一日为节假日，送达期满日期应该是节假日后的第一日。
（）3．被认定的恐怖活动组织和人员对认定不服的，可以通过国家反恐怖主义工作领导机构的办事机构申请复核，对复核决定不服的，再向人民法院提起行政诉讼；也可以直接向人民法院提起行政诉讼。
（）4．选举权和被选举权是公民的政治权利之一。
（）5．对破坏居（村）民委员会选举秩序的行为，应当按破坏选举秩序的有关规定给予治安管理处罚。
（）6．某生姜种植大户在种植生姜过程中，违反食品安全标准，严重超限量滥用农药，足以造成严重食源性疾病，应以生产、销售有毒、有害食品罪定罪处罚。
（）7．张某与王某互殴，在打架过程中，张某拾起路旁小摊上贩卖的图书向王某头部扔去，致王某轻微伤。
对该图书不能收缴。
（）8．在办理刑事案件时，对痕迹鉴定的期间不计入办案期限。
（）9．县级以上地方人民政府公安机关和公安分局内设机构分为后勤保障机构和对外执法机构。
（）10．虽然刘某没有身份证件，由于其租金较高，王某将房屋出租给刘某居住。
王某构成将房屋出租给无身份证件人居住的违反治安管理行为。
（）11．赵某在某省M市甲区盗窃作案后到该省N市乙区销赃，甲、乙两区公安机关因该案的管辖权发生争议，应当由M市公安局指定管辖。
（）12．甲在暂缓执行行政拘留期间给证人乙2000元钱，让乙向复议机关提供假证词，逃避行政拘留处罚执行，后被发现。
对此种情况，公安机关决定没收甲的保证金，并恢复执行行政拘留。
该公安机关的做法是正确的。
（）13．在执法活动中应当强调法律效果优于社会效果。
（）14．人民警察依照规定使用驱逐性、制服性警械，应当以不致违法犯罪行为人伤害为限度。
（）15．赵某（15周岁）抢夺他人人民币30万元，应当追究其刑事责任。
2017年公安机关人民警察基本级执法资格考试模拟试卷(二)含答案
2017年公安机关人民警察基本级执法资格考试模拟试卷（二）含答案模拟试题（二）一、判断题（每题1分，共20分）1．被害人在追诉期限内提出控告，人民法院、人民检察院、公安机关应当立案而不予立案的，不受追诉期限的限制。
（）2．某公安局办案民警小施向被处罚人送达法律文书，因送达期间的最后一日为节假日，送达期满日期应该是节假日后的第一日。
（）3．被认定的恐怖活动组织和人员对认定不服的，可以通过国家反恐怖主义工作领导机构的办事机构申请复核，对复核决定不服的，再向人民法院提起行政诉讼；也可以直接向人民法院提起行政诉讼。
（）4．选举权和被选举权是公民的政治权利之一。
（）5．对破坏居（村）民委员会选举秩序的行为，应当按破坏选举秩序的有关规定给予治安管理处罚。
（）6．某生姜种植大户在种植生姜过程中，违反食品安全标准，严重超限量滥用农药，足以造成严重食源性疾病，应以生产、销售有毒、有害食品罪定罪处罚。
（）7．张某与王某互殴，在打架过程中，张某拾起路旁小摊上贩卖的图书向王某头部扔去，致王某轻微伤。
对该图书不能收缴。
（）8．在办理刑事案件时，对痕迹鉴定的期间不计入办案期限。
（）9．县级以上地方人民政府公安机关和公安分局内设机构分为后勤保障机构和对外执法机构。
（）10．虽然刘某没有身份证件，由于其租金较高，王某将房屋出租给刘某居住。
王某构成将房屋出租给无身份证件人居住的违反治安管理行为。
（）11．赵某在某省M市甲区盗窃作案后到该省N市乙区销赃，甲、乙两区公安机关因该案的管辖权发生争议，应当由M市公安局指定管辖。
（）12．甲在暂缓执行行政拘留期间给证人乙2000元钱，让乙向复议机关提供假证词，逃避行政拘留处罚执行，后被发现。
对此种情况，公安机关决定没收甲的保证金，并恢复执行行政拘留。
该公安机关的做法是正确的。
（）13．在执法活动中应当强调法律效果优于社会效果。
（）14．人民警察依照规定使用驱逐性、制服性警械，应当以不致违法犯罪行为人伤害为限度。
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2017年甘肃省教科所中考数学试卷(2)
一、选择题（每题3分，共30分）
1．（3分）下列运算正确的是（）
A．x+y=xy B．2x2﹣x2=1 C．2x•3x=6x D．x2÷x=x
2．（3分）中央电视台有一个非常受欢迎的娱乐节目：墙来了！选手需按墙上的空洞造型（如图所示）摆出相同姿势，才能穿墙而过，否则会被推入水池．若墙上的三个空洞恰是某个几何体的三视图，则该几何体为（）
A ．
B ．
C
D ．
3．（3分）如图是每个面上都有一个汉字的正方体的一种平面展开图，那么在原正方体中和“国”字相对的面是（）
A．中B．钓C．鱼D．岛
4．（3分）下列说法中，正确的有（）
（1）的平方根是±5．（2）等腰三角形两边长为6cm和4cm，则它的周长是16cm．（3）五边形的内角和是540°．（4）抛物线y=3x2﹣x+4与x轴无交点．
A．1个B．2个C．3个D．4个
5．（3分）下列各图是在同一直角坐标系内，二次函数y=ax2+bx+c与一次函数y=ax+c的大致图象，有且只有一个是正确的，正确的是（）6．（3分）点P（m﹣1，2m+1）在第一象限，则m的取值范围是（）
A．m ＜﹣或m＞1 B ．﹣＜m＜1 C．m＞1 D．m ＞
7．（3分）如图，点A、B、C、D都在方格纸的格点上，若△AOB
绕点O按逆时针方向旋转到△COD的位置，则旋转的角度为（）
A．30°B．45°C．90°D．135°
8．（3分）如图，边长为4的等边△ABC中，DE为中位线，则四边
形BCED的面积为（）
A ．
B ．
C ．
D ．
9．（3分）如图，直径AB为6的半圆，绕A点逆时针旋转60°，此时
点B到了点B′，则图中阴影部分的面积是（）
A．3πB．6πC．5πD．4π
10．（3分）如图，直角三角形纸片的两直角边长分别为6、8，按如图那样折叠，使点A与点B重合，折痕为DE，则S△BCE：S△BDE等于（）
A．2：5 B．14：25 C．16：25 D．4：21
二、填空（每题4分，共40分）
11．（4分）将2x3y﹣4x2y+2xy分解因式的结果是．
12．（4分）若数2，3，x，5，6五个数的平均数为4，则这五个数的标准差为．
13．（4分）对于实数a、b，定义运算⊗如下：a⊗b=，例如，2⊗4=2﹣4=．计算[3⊗2]×[（﹣3）⊗2]=．
14．（4分）PM2.5是指大气中直径小于或等于2.5微米的颗粒物，也称为可入肺颗粒物．2.5微米等于0.0000025米，把0.000 002 5用科学记数法表示为．
15．（4分）已知二次函数y=ax2+bx+c中，其函数值y与自变量x之间的部分对应值如表所示：
点A（x1，y1）、B（x2，y2）在函数的图象上，则当1＜x1＜2，3＜x2＜4时，y1与y2的大小关系是．
16．（4分）如图，△ABC的周长为30cm，把△ABC的边AC对折，使顶
点C和点A重合，折痕交BC边于点D，交AC边于点E，连接AD，若AE=4cm，
则△ABD的周长是．
17．（4分）某中学初三年级的学生开展测量物体高度的实践活动，
他们要测量一幢建筑物AB的高度．如图，他们先在点C处测得建筑
物AB的顶点A的仰角为30°，然后向建筑物AB前进20m到达点D
处，又测得点A的仰角为60°，则建筑物AB的高度是m ．
18．（4分）如图，在菱形ABCD中，对角线AC与BD相交于点O，
OE⊥AB，垂足为E，若∠ADC=140°，则∠AOE的大小为．
19．（4分）小宏准备用50元钱买甲、乙两种饮料共10瓶，已知
甲饮料每瓶7元，乙饮料每瓶4元，则小宏最多能买瓶甲饮料．
20．（4分）如图，从点A（0，2）发出一束光，经x轴反射，过点B（4，3），则这束光从点A到点B所经过的路径的长为．三、解答题（共8小题，计80分．解答应写过程）
21．（10分）
（1）计算：﹣（﹣2）﹣2﹣（﹣2）0+|sin30°﹣1|（2）解分式方程：﹣=1．
22．（10分）先化简（）÷（1﹣），然后从﹣＜x＜范围内选取一个合适的整数作为x的值代入求值．
23．（10分）如图，在Rt△ABC中，∠C=90°，∠BAC的角平分线AD交BC边于D．
（1）以AB边上一点O为圆心，过A，D两点作⊙O；（用圆规、直尺作图，不写作法，但要保留作图痕迹）
（2）判断直线BC与⊙O的位置关系，并说明理由．
24．（10分）如图，在▱ABCD中，∠ABC的平分线BF分别与AC、AD交于点E、F．
（1）求证：AB=AF；
（2）当AB=3，BC=5时，求的值．
25．（10分）已知：如图，一次函数y=x+b的图象与反比例函数的图象交于A、B两点，A点坐标为（1，m），连接OB，过点B作BC⊥x轴，垂足为点C，且△BOC 的面积为．
（1）求k的值；
（2）求这个一次函数的解析式．
26．（10分）如图，已知⊙O的直径AB与弦CD互相垂直，垂足为点E．⊙O的切线BF与弦AD的延长线相交于点F，且AD=3，cos∠BCD=．
（1）求证：CD∥BF；
（2）求⊙O的半径；
（3）求弦CD的长．
27．（10分）“五一”期间，为了满足广大人民的消费需求，某商店计划用160000
元购进一批
家电，这批家电的进价和售价如下表：
（1）若全部资金用来购买彩电和洗衣机共100台，问商店可以购买彩电和洗衣机各多少台？（2）若在现有资金160000元允许的范围内，购买上表中三类家电共100台，其中彩电台数
和冰箱台数相同，且购买洗衣机的台数不超过购买彩电的台数，请你算一算有几种进货方案？哪种进货方案能使商店销售完这批家电后获得的利润最大？并求出最大利润．（利润=售价﹣进价）
28．（10分）已知：如图一次函数y=x+1的图象与
x轴交于点A，与y轴交于点B；二次函数y=x2+bx+c的图象与一次函数y=x+1的图象交于B、C两点，与x轴交于D、E两点且D 点坐标为（1，0）．
（1）求二次函数的解析式；
（2）求四边形BDEC的面积S；
（3）在x轴上是否存在点P，使得△PBC是以P为直角顶点的直角三角形？若存在，求出所有的点P，若不存在，请说明理由．。