期末模拟试题1及参考答案
《文秘办公自动化》期末模拟测试题一含答案
《文秘办公自动化》模拟测试题一姓名班级学号得分一、填空题(20分,每空1分)1.可以显示字符或图像信息,“告诉”用户处理数据的结果。
2.计算机感染了计算机病毒后,清除的最好办法是安装并进行病毒的查杀。
3.在常用功能按钮中,“确定”表示是,“应用”表示是。
4.在Word中使用功能可以为汉字注音。
5.页边距是输入文本的最大限度,分为、、左页边距和右页边距。
6.要取消排序结果,只需在“排序”对话框的下拉列表框中选择“无”即可。
7.是Excel中存储和输入数据的最小单位,它由惟一确定。
8.在Excel中选择菜单命令,可以创建图表。
9.单击格式工具栏中的合并及居中按钮,可使选择的单元格,并且单元格中的文字居中显示。
10.在幻灯片中文字输入的方式有3种,分别为在、利用文本框输入以及。
11.PowerPoint 2003是Office 2003套件中的一个应用软件,主要用于制作和演示,是为做报告授课等用户设计的。
12.是一种用于帮助用户在Internet中查找信息的搜索工具。
13.迅雷是一个专用的软件,具有断点传输等功能。
14.打印机默认情况下仅能被与其连接的计算机使用,为了降低公司成本,可将打印机进行,使局域网中的其他计算机都可以使用。
15.打印机分为针式打印机和三种。
二、判断题(15分,每题1分)1.在计算机工作时,可以带电插拔硬件和外部设备。
()2.“国”字是一级简码,根据拆分原则应将其拆分为“冂、王、丶、一”。
()3.在计算机中,存储信息数据的最基本方式是文件夹,存放文件夹的是文件。
()4.Word中字符的格式设置可以通过两种方式来完成:一是通过“格式”工具栏进行设置;二是通过“字体”对话框进行设置。
()5.利用Word “常用”工具栏上的“插入表格”按钮可以绘制无限大的表格。
()6.通过为文档添加背景可以美化文档,但该效果不能被打印。
()7.在Excel中数字格式包括常规格式、货币格式、日期格式、百分比格式、文本格式及会计专用格式等。
英语小学五年级下册期末模拟试题(及答案)(1)
一、单项选择1.—Excuse me, how do I get to Happy Cinema _________ Shanghai Street? ( )—Walk along this street. You can find it _________ a metro station.A.at; near B.on; next to C.in; on2.Who often ______ the old people? ( )A.helps B.is helping C.helping3.—How can I ______ Peter’s home? ( )—You can ______ there by taxi.A.get; get B.get to; get C.get; get to 4.—What's wrong with _______? ( )—_______ has a bad cough.A.him; His B.he; Him C.him; He5.I am washing some _______. I want to cook some _______ soup. ( ) A.tomatoes; tomatoes B.tomatoes; tomato C.tomato; tomatoes 6.Let’s go to the zoo. How do we ________? ( )A.to get B.get there C.get to there7.—______ there any bread in the fridge? ( )—No. But there ______ some cakes in it.A.Are; are B.Is; are C.Is; is8.Mike ______ a cough. He should ______ some warm water. ( )A.has; drinks B.has; drink C.have; drink 9.—When is Zhang Peng’s _____ birthday? ( )—It’s in winter.A.grandpas’B.grandpa C.grandpa’s 10.Listen, the bird _______ ________ the tree. ( )A.sing; in B.sings; on C.is singing; in D.is singing; on 11.The Double Ninth Festival is ______________. ( )A.in spring B.in October or November C.in November or December D.in October12.Liu Tao's parents ________ dinner in the kitchen now. ( )A.are cooking B.do cooking C.is cook13.—What's wrong with the rabbit's _______? ( )—She can't hear well.A.ears B.nose C.neck D.eyes 14.There ________ some bread and milk in the fridge. ( )A.is B.are C.have15.—What is Mr. Black ______? ( )—He’s ______ the car in the yard.A.do; clean B.doing; cleaning C.doing; cleans D.do; cleans 二、用单词适当形式填空16.—Who ______ (teach) you English this term?—Miss Li.17.—What would you like?—I’d like _____ (drink) some coffee.18.________ (Jim) birthday is on the first of May.19.Sam _______ (have) many fish, but Bobby _______ (not have) any.20.She often _______ (have) dinner with her parents. She ________ (do) her homework at five o'clock in the afternoon. She _______ (like) ________ (read) stories.21.Look, the twin sisters ________ (wash) clothes.22.Ten students have ______ (they) birthdays in February.23.Mike ________ (watch) TV in the evening every weekend.24.Five students have their ______ (birthday) in December.25.—Is Liu Tao ______ (sweep) the floor now?—Yes, he is.26.The door opens. Bobby goes in. There is a pig in the house. They start ________ (fight). 27.Cindy has a cat. Its name is Kitty. It likes ______ (sleep).28.It’s six o'clock now. Dad and I ______ (eat) noodles for breakfast.29.It’s Chongyang Festival. The children _______ (chat) with the old people in the room now. 30.The girl ______ (try) on this red skirt and it fits.三、完成句子31.The pest f_______ away, but the ladybird doesn’t.32.John's and Tommy's birthday are on the s_______ day.33.There are four seasons in a y ______.34.Jack b_______ his teeth every night.35.Dinner is r______. Let’s eat now.36.The show begins at seven o'clock. Let's take a t_________ to the cinema.37.Mike goes to school by m______ every day.38.—When do you _______ _______ (打电话我)? —_______ the _______ of _______. (在8月5日)39.M ______ comes before April.40.—_________ are my socks?—I can't find _________ (they).四、阅读判断The Monkey King goes to India (印度) with his master (师父) Xuanzang. On their way they meet a girl. The Monkey King can see she is a demon (妖怪), So he kills her with his stick (棒). Then, an old woman comes along. She says she cannot find her daughter. The Monkey King kills her too because she is the demon. After that, an old man comes. He says he cannot find his wife (妻子) and daughter. The Monkey King kills him too because he is also the demon. Xuanzang thinks the Monkey King kills three people. He is very sad and angry. He lets him go away.41、The Monkey King goes to _________ with his master. ( )A.Australia B.India C.Canada42、First the Monkey King and his master meet a(n) _________ on their way.( )A.girl B.old woman C.old man43、Finally the Monkey King and his master meet a(n) _________. ( )A.girl B.old woman C.old man44、There is/are _________ in the story. ( )A.one demon B.two demons C.three demons45、Xuanzang _________ the Monkey King. ( )A.can understand B.can’t understand C.can know五、阅读判断The Red Star Primary School is having a holiday festival. The schedule (时间表)tells us where and when each activity (活动)can have.A.Two. B.Three. C.Four. D.Five.47、At what time can they play a chess game? ( )A.At 1:00p.m. B.At 1:30p.m. C.At 2:00p.m. D.At 3:00p.m.48、What can they do at Jamal’s Café? ( )A.Make cakes B.Have a party. C.See a movie. D.Draw pictures.49、Which two activities can have at the same time? ( )A.Visit a stamp show and Fire drill.B.See a movie and Fire drill.C.See a movie and Visit a stamp show.D.Play chess games and make cakes.50、At what time does the holiday festival end? ( )A.At about 1:00p.m.B.At about 3:00p.m.C.At about 3:30p.m.D.At about 4:30p.m.六、阅读理解Julien is a young singer in France. He wants to marry Sophie. She is a pretty girl in a rich family. Sophie’s father doesn’t want to marry his daughter to a poor boy. He invites (邀请) Julien to a dinner party and gives him two pies. “There is a piece of paper in each pie. One says ‘yes’, and the other says ‘no’. If you pick the one with ‘yes’, I will marry my daughter to you.” In fact (事实上), both pieces of paper say “no”.“Sophie’s dad must be lying,” Julien thinks. Then Julien has a good idea. He picks one pie and eats it up (吃光) quickly. Then he says, “Please see the paper in the other pie.”51、Sophie’s father doesn’t want to marry his daughter to Julien because ________. ( )A.he is too young B.he is a singer C.he is poor52、Sophie’s father lets Julien ________. ( )A.eat two pies B.pick one of the two pies C.say yes and marry Sophie53、The underlined word “lying” means “________” in Chinese. ( )A.承认B.犯错误C.说谎54、Julien is a ________ boy. ( )A.rich B.clever (聪明的) C.foolish (愚蠢的)55、Which sentence is wrong? ( )A.O ne piece of paper says “yes” and the other one says “no”.B.Julien picks a pie, but others can’t see the paper inside it.C.The remaining (剩下的) pie has a piece of paper with “no”.七、阅读理解根据短文内容,选择正确答案。
中医基础理论期末模拟试题及答案(1)
中医基础理论考试模拟题库1、常见血虚证的两脏是A.心.肝B.心.脾C.脾.肾D.肝.肾E.心.肺【答案】A2、饮酒过度,易出现的变化有A.肝脾受损B.情志异常C.痰浊内生D.癥积E.湿热蕴结【答案】A B C D E3、具有抑制.偏寒.多静等特征的体质是A.平和质B.偏阳质C.偏阴质E.气虚质【答案】C4、偏阳质的体质特征包括A.兴奋B.抑制C.好动D.偏热E.喜静【答案】A C D5、外伤大出血后,患者出现气少息微.全身乏力的理论根据是A.气能生血B.气能行血C.气能摄血D.血能养气E.血能载气【答案】E6、具有调节肝.肾.胃气机升降作用的奇经是A.督脉C.足厥阴肝经D.任脉E.阴维脉【答案】B7、津液之府指A.胃B.大肠C.小肠D.三焦E.膀胱【答案】E8、具有亢奋.偏热.多动等特征的体质是A.平和质B.偏阳质C.偏阴质D.湿热质E.阴虚质【答案】B9、愈后防复的错误方法是A.饮食清淡B.适当锻炼C.多食肉食D.避免劳累E.巩固用药【答案】C10、被后人称为“补土派”的医家代表是A.李中梓B.李东垣C.陈无择D.叶天士E.刘完素【答案】B11、“泻火润金”中的“火”指的是A.肝B.心C.脾D.肺E.肾【答案】B12、内湿的形成因素有A.气候潮湿B.居处阴湿C.脾不运湿D.涉水冒雨E.肾虚水湿不化【答案】C E13、痰饮.瘀血.结石在形成过程中均密切相关的为A.寒凝B.气虚C.气滞D.血热E.湿热【答案】C14、人体之精生成的物质来源有A.先天之精B.吸入清气C.水谷精微D.脏腑之精E.生殖之精【答案】A B C15、三焦的主要生理功能包括A.通行元气B.运行气血C.运行津液D.布散精微E.调节气机【答案】A C16、十二经脉中循行于腹部的经脉,自内向外的顺序是A.足少阴.足阳明.足太阴.足厥阴B.足少阴.足阳明.足厥阴.足太阴C.足太阴.足阳明.足少阴.足厥阴D.足阳明.足少阴.足太阴.足厥阴E.足阳明.足太阴.足厥阴.足少阴【答案】A17、属于反治的有A.以寒治寒B.以热治热C.以寒治热D.以通治通E.以补开塞【答案】A B D E18、126:属于中医学气理论范畴的是A.大气B.中气C.烦气D.杂气E.胃气【答案】A B D E19、导致阴疽流注的邪气是A.痰饮B.瘀血C.寒邪D.结石E.疫疠【答案】A20、某女,23岁。
英语小学四年级上册期末模拟试题(及答案)(1)
一、选择填空1.—Here _____ some orange juice for you. ( )—Thank you.A.are B.is C.am 2.—_______ crayons would you like? ( )—Seventeen, please.A.How many B.How much C.How long 3.I have _______ cakes, but I don’t have _______ sandwiches. ( ) A.some; any B.any; some C.some; some 4.—Can you make a toy? ( )—Yes, ______.A.I can B.you can C.I can’t 5.The cat is fat ________ big. ( )A.or B.but C.and6.I have a ________. I like ________. ( )A.ball; ball B.balls; ball C.ball; balls 7.—What ________ you like? ( )—I'd like a cup _______ coffee.A.do; of B.would; for C.would; of 8.---Do you like ________? ( )---Yes, I ________.A.dog; do B.a dog; don’t C.dogs; do 9.—I’m hungry, mum. ( )—All right. Here’s some ______ you.A.rice for B.tea to C.juice at 10.We have _____ chicken (鸡肉). But we don’t have _____ fish. ( ) A.some; some B.any; any C.some; any 11.—Would you like a pie? ( )—______ I’m hungry now.A.Yes, please. B.No, thank you. C.I’m ok. 12.—________ are my pencils? ( )—They’re in your pencil case.A.Who B.What C.Where 13.I like these ________. Do you like ________? ( )A.dogs; dogs B.dog; dogs C.dog; dog 14.—What are ________ in the big tree? ( )—They’re cats.A.this B.those C.that 15.—How many stickers would you like? ( )—________A.Forty yuan. B.Two, please. C.OK.二、用单词的适当形式填空16.—Do you have _____ (some) clocks in the kitchen?—Yes, we do. We have two big _____ (fridge) too.17.—Helen can _____ (play) table tennis. Can you?—Yes, I can. I can play it very_____ (good).18.—What _____ (would) you like?—I’d like two _____ (sandwich) and two cups of coffee, please.19.I don’t have ________ (some) oranges.20.Look! Those are nice ______ (sandwich) on the table.21.How many _________ (robot) do you have?22.That girl can play football very __________. (good)23.This is ______ (he) umbrella.24.How many ________ (animal) ________ (toy) do you have? 25.—Can Tom jump?—No, he _____. (can)26.—Do you like _____ (monkey)?—No, I _____. (do)27.I don't like ice cream _____ (too).28.These are _____ (he) socks.29.We have two __________ (box).30.—Look at these ______ (snowman).—How lovely!三、完成句子31.Tim has ________ (二十) toy robots.32.Mike can play __________ very well.33.The snowman’s eyes are ______ and ______. (又大又红)34.I have two cute toy _____.35.We have ______ desks in our classroom. ()36.My ________ are on the ________.37.Look at the funny __________.38.Welcome to my n__________ (新的) h__________.39.A: Look at this dog. His ________ are big.B: His tail is ________.40.—你有多少个机器人?—我有十五个。
人教pep版英语三年级上学期期末模拟试卷测试题(带答案)(1)
一、单项选择1.This is John. _________ is my friend. ( )A.He B.She C.I2.Look _________ my cap. ( )A.to B.for C.at3.This is Wang Fang. _________ my sister. ( )A.She B.He's C.She's4.In the book The Beach, Anna and Nina have (有) the same (相同的) _____. ( ) A.ball B.doll C.car 5.—Good morning. ( )—______A.Good morning. B.Good afternoon.6.This is Tina. _________ my sister. ( )A.He's B.She's C.It's 7.—What colour is your T-shirt? ( )—_________A.It's great. B.How nice! C.It's yellow. 8.—Good morning, Miss Li. ( )—__________A.Good afternoon. B.Good morning. C.Hello. 9.—Look at my skirt. ( )—________A.Good afternoon. B.Great!10.Would you like _________? ( )A.ice cream B.a ice cream C.an ice cream 11.—What colour is it? ( )—It’s ________.A.oranges B.an orange C.orange 12.—_______ you Su Hai? ( )—Yes, I _______.A.Are, am B.Is, am C.Are, is 13.—Hi, Bobby. ( )—_______A.Hello, Bobby. B.Hi, Sam. C.Hi, I’m Bobby. 14.—Happy birthday! ( )—______A.OK. B.Thank you. C.Happy birthday! 15.This cat is cute and that cat is cute ________. ( )A.to B.too C.at16.—______ is it? ( )—It’s redA.What B.What colour C.What’s 17.A: Look at my jacket. ( )B: It’s ________.A.Thank you. B.very nice. C.please 18.—Would you like a hot dog? ( )—________A.No, please. B.It’s white.C.Yes, please. 19.—Are you Liu Tao? ( )—________A.Yes, I am. B.No, I am. C.Yes, I’m not. 20.—This is for you. ( )—_________A.No. B.Thank you. C.Yes, please.二、完成句子21.Can I have some ice?22.________ (我) am Sam.23.—What colour is your _______ (帽子)?—It’s black _______ white (黑白相间).24.This is my _____ (爸爸).25.__________________ (新年快乐), Uncle Li!26.—What colour is it?—It’s (蓝色).27.—Would you like an e_________?—N_________, thank you.28.He has ____ and his ____ are orange.29.The hole in the wall is too small and the fat cat can’t walk ________ (穿过) it. 30.Cool! The lephant is so big.31.This is Mike. ______ (他) is my friend.32.Look!It is a (pen/schoolbag). It is yellow. It’s nice.33.I’m going to v______ my grandparents next weekend.34.How _____ (老的) are you?35.—Do you have a c_______.—I want to look it up on the Internet.36.We have ______ (6) cards.37.The ________ (熊) is brown.38.—What colour is my ______ (新的) skirt? —It’s ______ (绿色的).39.—Would you like a ______ (蛋糕)? —Yes, please.40.Let’s m_____ a c_____ for mum and dad.三、阅读理解Today we are in the zoo. Wow, it's very big. Look at the monkey. It's in the truck. It's funny. Look at the tiger. It's drinking water. Look at the panada. It's black and white. It's cute. I see many pigs. How many pigs? Let's count. 1, 2, 3…9! I see 9 pigs. They are fat. They are eating. I like them. 41、They are in the ______. ( )A.B.C.42、The ______ is drinking water. ( )A.B.C.43、The ______ is black and white. ( )A.B.C.44、How many pigs? ( )A.Two B.Three C.Nine45、It's in the truck. It's funny. ( )A.有趣的B.可爱的C.奇怪的四、阅读理解阅读对话,选择正确答案。
《房屋建筑学》期末模拟试题一及参考答案
《房屋建筑学》期末模拟试题一及参考答案一、单项选择题(每小题2分,共20分)1. 建筑是建筑物和构筑物的统称,()属于建筑物。
A.住宅、堤坝 B. 学校、电塔C. 工厂、水塔D. 工厂、展览馆2. 墙与柱和屋架必须有可靠的连接,常用做法是沿柱高每( )mm平行伸出两根Φ6钢筋砌入砌体水平灰缝中。
A. 800~1000B. 500~600C. 300~400D. 9003. 圈梁的高度一般不小于()。
A.120mm B. 150mmC. 200mmD. 250mm4. 下列建筑物的交通部分中起垂直交通枢纽作用的是( )。
A. 走廊,过道B. 楼梯,电梯C. 门厅D. 过厅5. 在下列墙面粉刷材料中,( )用于一般内墙面的底粉刷。
A. 水泥砂浆B. 混合砂浆C. 纸筋灰D. 聚合物砂浆6. 屋顶是建筑物最上面起维护和承重作用的构件,屋顶构造设计的核心是()。
A. 承重B. 保温隔热C. 防水和排水D. 隔声和防火7. 地下室墙面防水有()等作法。
A. 涂沥青两遍B. 设置多道水平防水层C. 外贴防水卷材D. 外墙采用防水混凝土8. 普通粘土砖的尺寸为( )。
A. 240mm×120mm×60mmB. 240mm×120mm×55mmC. 240mm×115mm×55mmD. 240mm×115mm×53mm9. 工业厂房室内外地面的高差一般为()。
A. 450mmB. 150mmC. 600mmD. 100mm10. 可能产生不均匀沉降的建筑物或门窗洞口尺寸较大时,应采用()过梁。
A. 砖砌平拱B. 砖砌弧拱C. 钢筋砖D. 钢筋混凝土二.判断题,对的在括号中填A,错的填B(答题卡中判断正确的涂A、判断错误的涂B)。
(每小题2分,共20分)11、住宅建筑层数在4层及以下为是低层住宅。
()12、学生公寓属于公共建筑。
()13、建筑物的台阶、平台不得突出于城市道路红线之外。
英语小学四年级下册期末模拟试题测试题(及答案)(1)
一、单项选择1.—What’s the matter? Are you ill? ( )—Yes, I have ______ cough and _______ headache.A.a; a B.a; / C./; /2.—________? ( )—They’re Sam’s.A.Whose skirt is itB.Whose gloves are theyC.Where are the trousers3.Look at these trees. Can you draw ________? ( )A.it B.them C.those4.—How many seasons are there in a year(年)? ( )—________.A.Twelve B.Seven C.Four5.—My jeans _______ too long. ( )—Try _______, please.A.are; this B.are; these C.is; these6.—_______ crayons are these? ( )—They’re my _______.A.Who’s; cousin’s B.Whose; cousin C.Whose; cousin’s 7.—Hello. May I speak to Betty? ( )—________A.Yes, I’m Betty.B.Yes, this is Betty speaking. C.No, I’m Lily.8._______ nice the cakes _______! ( )A.What; is B.How; are C.How; is9._______ is the first season of a year. ( )A.Spring B.Sunday C.Summer10.—I usually go to school at ________. ( )—Oh, it’s not late.A.seven ten B.eight fifty C.two o'clock 11.—_________ lessons do you have in a week? ( )—We have thirty.A.What B.How many C.How much12.—I am ________. ( )—Here’s a glass of water for you.A.thirsty B.hungry C.tired13.—I have a fever. ( )—________A.Thank you. B.Great! C.I’m sorry to hear that. 14.Here ______ a lot of beautiful flowers. ( )A.are B.am C.is 15.—What ______ big fish it is! ( )—Yes. I like ______ fish.A./; / B.a; the C.a; /二、用单词的适当形式填空16.Oliver often _______ (have) dinner at home.17._______ (he) is happy! And _______ (he) eyes are big! 18.There are fifty _______ (student) in my class.19.Can you go _______ (fish) in winter?20._________ (who) pencils are they?21.I'm hot. I want _________ (eat) an ice cream.2an you see _____ (he) new shirt?23.I don’t have ______ (some) stickers.24.Look at these _______ (boat) on the river! Let’s go _______ (boat). 25.Look at these ________ (dress). They are so nice.2an I have ________ (any) cakes?27.This is ________ (I) timetable.28.—Are you thirsty, Joe?—Here _____ (be) some water for you.29.I don't have _____ (some) lessons this Saturday.30.It’s cool and ______ (rain).三、完成句子31.—_______ is this in English?—It's a car.32.完成对话,每空一词。
【好题】高三数学下期末模拟试题及答案(1)
【好题】高三数学下期末模拟试题及答案(1)一、选择题1.在某种信息传输过程中,用4个数字的一个排列(数字允许重复)表示一个信息,不同排列表示不同信息,若所用数字只有0和1,则与信息0110至多有两个对应位置上的数字相同的信息个数为 A .10 B .11C .12D .152.若满足sin cos cos A B Ca b c==,则ABC ∆为( ) A .等边三角形 B .有一个内角为30°的直角三角形 C .等腰直角三角形D .有一个内角为30°的等腰三角形3.已知命题p :若x >y ,则-x <-y ;命题q :若x >y ,则x 2>y 2.在命题①p ∧q ;②p ∨q ;③p ∧(⌝q );④(⌝p )∨q 中,真命题是( ) A .①③B .①④C .②③D .②④4.某同学有同样的画册2本,同样的集邮册3本,从中取出4本赠送给4为朋友,每位朋友1本,则不同的赠送方法共有 A .4种B .10种C .18种D .20种5.甲、乙、丙3位志愿者安排在周一至周五的5天中参加某项志愿者活动,要求每人参加一天且每天至多安排一人,并要求甲安排在另外两位前面,不同的安排方法共有( ) A .20种 B .30种 C .40种 D .60种 6.数列2,5,11,20,x ,47...中的x 等于( ) A .28B .32C .33D .277.函数32()31f x x x =-+的单调减区间为 A .(2,)+∞B .(,2)-∞C .(,0)-∞D .(0,2)8.函数()ln f x x x =的大致图像为 ( )A .B .C .D .9.若干年前,某教师刚退休的月退休金为6000元,月退休金各种用途占比统计图如下面的条形图.该教师退休后加强了体育锻炼,目前月退休金的各种用途占比统计图如下面的折线图.已知目前的月就医费比刚退休时少100元,则目前该教师的月退休金为( ).A .6500元B .7000元C .7500元D .8000元 10.在△ABC 中,P 是BC 边中点,角、、A B C 的对边分别是,若0cAC aPA bPB ++=ru u u v u u u v u u u v ,则△ABC 的形状为( )A .直角三角形B .钝角三角形C .等边三角形D .等腰三角形但不是等边三角形.11.设三棱锥V ABC -的底面是正三角形,侧棱长均相等,P 是棱VA 上的点(不含端点),记直线PB 与直线AC 所成角为α,直线PB 与平面ABC 所成角为β,二面角P AC B --的平面角为γ,则( ) A .,βγαγ<<B .,βαβγ<<C .,βαγα<<D .,αβγβ<<12.一个样本a,3,4,5,6的平均数是b ,且不等式x 2-6x +c <0的解集为(a ,b ),则这个样本的标准差是( ) A .1 B 2C 3D .2二、填空题13.设正数,a b 满足21a b +=,则11a b+的最小值为__________. 14.函数()23s 34f x in x cosx =-(0,2x π⎡⎤∈⎢⎥⎣⎦)的最大值是__________. 15.等边三角形ABC 与正方形ABDE 有一公共边AB ,二面角C AB D --的余弦值为33,M N ,分别是AC BC ,的中点,则EM AN ,所成角的余弦值等于 . 16.在极坐标系中,直线cos sin (0)a a ρθρθ+=>与圆2cos ρθ=相切,则a =__________.17.已知向量a r 与b r 的夹角为60°,|a r |=2,|b r |=1,则|a r+2 b r |= ______ .18.有三张卡片,分别写有1和2,1和3,2和3.甲,乙,丙三人各取走一张卡片,甲看了乙的卡片后说:“我与乙的卡片上相同的数字不是2”,乙看了丙的卡片后说:“我与丙的卡片上相同的数字不是1”,丙说:“我的卡片上的数字之和不是5”,则甲的卡片上的数字是________.19.如图,正方体1111ABCD A B C D -的棱长为1,线段11B D 上有两个动点,E F ,且22EF =,现有如下四个结论: AC BE ①⊥;//EF ②平面ABCD ;③三棱锥A BEF -的体积为定值;④异面直线,AE BF 所成的角为定值,其中正确结论的序号是______.20.()sin 5013tan10+=oo________________.三、解答题21.已知曲线C :(t 为参数), C :(为参数).(1)化C ,C 的方程为普通方程,并说明它们分别表示什么曲线; (2)若C 上的点P 对应的参数为,Q 为C 上的动点,求中点到直线(t 为参数)距离的最小值.22.已知2256x ≤且21log 2x ≥,求函数22()log 22x xf x =⋅的最大值和最小值. 23.“微信运动”是手机APP 推出的多款健康运动软件中的一款,大学生M 的微信好友中有400位好友参与了“微信运动”.他随机抽取了40位参与“微信运动”的微信好友(女20人,男20人)在某天的走路步数,经统计,其中女性好友走路的步数情况可分为五个类别:A 、02000:步,(说明:“02000:”表示大于或等于0,小于2000,以下同理),B 、20005000:步,C 、50008000:步,D 、800010000:步,E 、1000012000:步,且A 、B 、C 三种类别的人数比例为1:4:3,将统计结果绘制如图所示的柱形图;男性好友走路的步数数据绘制如图所示的频率分布直方图.(Ⅰ)若以大学生M 抽取的微信好友在该天行走步数的频率分布,作为参与“微信运动”的所有微信好友每天走路步数的概率分布,试估计大学生M 的参与“微信运动”的400位微信好友中,每天走路步数在20008000:的人数;(Ⅱ)若在大学生M 该天抽取的步数在800010000:的微信好友中,按男女比例分层抽取6人进行身体状况调查,然后再从这6位微信好友中随机抽取2人进行采访,求其中至少有一位女性微信好友被采访的概率.24.随着“互联网+交通”模式的迅猛发展,“共享自行车”在很多城市相继出现。
2024年天津市小学五年级上学期期末数学试题及解答参考
2024年天津市数学小学五年级上学期期末模拟试题(答案在后面)一、选择题(本大题有6小题,每小题2分,共12分)1、下列数中,哪个数既是偶数又是质数?A. 2B. 4C. 6D. 82、如果一个正方形的边长是5厘米,那么它的面积是多少平方厘米?A. 10B. 15C. 20D. 253、一个长方形的长是8厘米,宽是4厘米,这个长方形的面积是多少平方厘米?选项:A. 12B. 16C. 24D. 324、小华有一些铅笔,如果他每天用掉3支,那么这些铅笔可以用10天。
如果小华每天用掉5支,那么这些铅笔可以用几天?选项:A. 6天B. 7天C. 8天D. 9天5、一个正方形的周长是20厘米,它的面积是多少?A. 25平方厘米B. 20平方厘米C. 16平方厘米D. 30平方厘米6、如果一个数除以7后余数是2,那么这个数最小是多少?A. 9B. 14C. 20D. 23二、填空题(本大题有6小题,每小题4分,共24分)1、1个苹果的重量是200克,那么4个苹果的总重量是____ 克。
2、一个长方形的长是8厘米,宽是5厘米,这个长方形的周长是 ____ 厘米。
3、一个长方形的长是12厘米,宽是长的一半,那么这个长方形的面积是 ____ 平方厘米。
4、一个三位数,百位和十位上的数字相同,个位上的数字是百位和十位数字的和,这个数最大是 ____ 。
5、一个长方形的长是宽的3倍,如果宽是8厘米,则这个长方形的面积是 ______ 平方厘米。
6、小明有5本书,小华比小明多3本,小红有书的数量是小明的两倍减去2本,那么小华和小红一共有 ______ 本书。
三、计算题(本大题有5小题,每小题4分,共20分)1、计算下列各题。
(1)(325×7+432)(2)(567−234−56)(3)(845÷5×3)(4)(1256÷8−63)2、计算下列各题。
(1)(246×6−378)(2)(765+398−543)(3)(789÷3+252)(4)(1125÷15−432)3、计算以下各题:(1)123 × 45 + 678 ÷ 214、计算以下各题:(1)256 ÷ (4 - 2) + 3 × 85、计算下列各题。
《幼儿卫生与保育》期末模拟试题(1)答案
《幼儿卫生与保育》期末模拟试题(1)一、选择题1.下列做法错误的是(B)A擦鼻涕时应按住两个鼻孔同时B.鼻涕时应用手指按住一个鼻孔操另一个鼻孔C.当外界声音过大时,应捂住耳朵、闭嘴D.当外界声音过大时,如果不捂耳朵,应张开嘴2.小儿骨头最外层的骨膜较厚,可以发生“折而不断”的现象,小儿的这种现象称为( B )A.粉碎性骨折B.青枝骨折C.脱白D.开放性骨折3.龋齿发生的主要原因(A)A食物残渣在齿缝里产酸,腐蚀牙釉质形成的B.虫子蛀的C.是吸吮手指造成的D.缺乏营养4.评价幼儿生长发育最重要的指标是(D)A体重和头围B.头围和胸围C.身高和胸围D.身高和体重5.贫血是儿童常见病,可能与下列哪种矿物质缺乏有关?(B)A钙B.铁C.铜D.锌6.在日常生活中,我们强调一些卫生常识,如饭前便后要洗手,从预防传染病流行的角度看,这是为了(B)A控制传染源B.切断传播途径C.保护易感人群D.以上都是7.流行性感冒属于 (C)A血液传染病 B.消化道传染病 C.呼吸道传染病 D.体表传染病8.异物入眼,处理方法是(C)A用手揉眼B.翻开眼皮,用湿棉花或干净手帕拭出异物C.翻开眼皮,用温开水冲洗D.闭上眼睛9.图书消毒的最好办法是 ()A.日晒消毒B.煮沸法C.漂白粉D.过氧乙酸10.《托儿所幼儿园卫生保健工作规范》规定托幼园所工作人员接受健康检查的频率是(A)A.每年一次B.半年一次C.每月一次D.三年一次二、判断题1.幼儿耳结构的特点,使幼儿的听力较成人敏锐,故噪音对幼儿听力的影响也就特别大。
正确2.幼儿进餐时应避免说笑,以免将未嚼碎的食物呛入呼吸道。
正确3.学前儿童血量相对比成人多,年龄越小,比例越大。
正确4.体重测量最好在早晨、空腹、便后进行。
正确5.幼儿园膳食应按照早餐吃饱、中餐吃好、晚餐吃少的原则制定。
错6.麻疹、水痘等传染病,一次患病后几乎终身不再感染。
正确7.儿童中暑后,可以给患儿喝冷饮降温。
错8.骨折后的现场急救原则是限制伤肢再活动。
浙江省宁波市镇海中学2024学年数学高三第一学期期末质量检测模拟试题含解析
浙江省宁波市镇海中学2024学年数学高三第一学期期末质量检测模拟试题请考生注意:1.请用2B 铅笔将选择题答案涂填在答题纸相应位置上,请用0.5毫米及以上黑色字迹的钢笔或签字笔将主观题的答案写在答题纸相应的答题区内。
写在试题卷、草稿纸上均无效。
2.答题前,认真阅读答题纸上的《注意事项》,按规定答题。
一、选择题:本题共12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.定义:{}()()N f x g x ⊗表示不等式()()f x g x <的解集中的整数解之和.若2()|log |f x x =,2()(1)2g x a x =-+,{}()()6N f x g x ⊗=,则实数a 的取值范围是 A .(,1]-∞-B .2(log 32,0)-C .2(2log 6,0]-D .2log 32(,0]4- 2.已知向量(3sin ,2)a x =-,(1,cos )b x =,当a b ⊥时,cos 22x π⎛⎫+= ⎪⎝⎭( ) A .1213-B .1213C .613-D .6133.设1F ,2F 分别为双曲线22221x y a b-=(a >0,b >0)的左、右焦点,过点1F 作圆222x y b += 的切线与双曲线的左支交于点P ,若212PF PF =,则双曲线的离心率为( )AB C D4.已知函数()sin 2cos 2f x x a x =+的图象的一条对称轴为12x π=,将函数()f x 的图象向右平行移动4π个单位长度后得到函数()g x 图象,则函数()g x 的解析式为( ) A .()2sin(2)12g x x π=- B .()2sin(2)12g x x π=+C .()2sin(2)6g x x π=-D .()2sin(2)6g x x π=+5.观察下列各式:2x y ⊗=,224x y ⊗=,339x y ⊗=,4417x y ⊗=,5531x y ⊗=,6654x y ⊗=,7792x y ⊗=,,根据以上规律,则1010x y ⊗=( )A .255B .419C .414D .2536.已知α22sin αα=,则cos2α等于( ) A .23B .29C .13-D .49-7.设等比数列{}n a 的前项和为n S ,若2019201680a a +=,则63S S 的值为( )A .32B .12C .78 D .988.已知将函数()sin()f x x ωϕ=+(06ω<<,22ππϕ-<<)的图象向右平移3π个单位长度后得到函数()g x 的图象,若()f x 和()g x 的图象都关于4x π=对称,则ω的值为( )A .2B .3C .4D .329.221a b +=是sin cos 1a b θθ+≤恒成立的( ) A .充分不必要条件 B .必要不充分条件 C .充要条件D .既不充分也不必要条件10.若集合}{}{2,33A x y x B x x ==-=-≤≤,则A B =( )A .[]3,2-B .{}23x x ≤≤ C .()2,3 D .{}32x x -≤< 11.已知全集,,则( )A .B .C .D .12.为了得到函数sin 26y x π⎛⎫=- ⎪⎝⎭的图象,只需把函数sin 2y x =的图象上所有的点( ) A .向左平移6π个单位长度 B .向右平移6π个单位长度 C .向左平移12π个单位长度D .向右平移12π个单位长度二、填空题:本题共4小题,每小题5分,共20分。
小学四年级上册期末英语模拟试卷测试题(及答案)(1)
一、选择填空1.—Is my clock ______ the living room? ( )—Yes, _________A.in; it is B.in; they are C.on; they are 2.This is _______ orange umbrella. ( )A.a B.an C./3.The horse _______ swim. ( )A.likes B.is C.can’t 4.—Where _____ my new shoes?( )—_____ in the box.A.is; It's B.are; They're C.are; It's 5._________a cool cap! ( )A.How B.What C.Where 6.—How much _________ the socks? ( )—_________ twenty yuan.A.is; It’s B.are; they’re C.are; They’re 7.—Would you like a cup of coffee? ( )—______A.No, it isn’t.B.No, I don’t.C.No, thanks. 8.The skirts are nice. They are ______ my sister. ( )A.for B.at C.in9.--- Is the fridge ________ the kitchen? ( )---Yes, ________.A.in, they are B.on, it is C.in, it is 10.--- I have ________ balls. ( )--- Can I have______ look?A.any, a B.some, an C.many, a 11.--- What’s this? ( )--- It’s ________ red umbrella.A.an B.a C./1: _______ are the birds? ( )B: They are _______ the tree.A.What; in B.Where; on C.Where; in 13.—I can’t fly. ( )—Don’t be sad, Bobby. I can’t fly ______.A.either B.too C.to 14.—How many balls do you have? ( )—I have seventeen balls. Seven red balls and ______ yellow balls.A.four B.six C.ten 15.—________? ( )—I can play basketball.A.What do you have? B.What can you do? C.What do you like?二、用单词的适当形式填空16.Tina just would like two ______ (glass) of juice and some cakes.17.How many _________ (robot) do you have?18.Here are two _____ (glass) of juice.19.Look at that doll. Her ________ (ear) are big.20.What about an egg and two ________ (sandwich)?21.My sister can swim very ________ (good).22.—Can Tom jump?—No, he _____. (can)23.—Do you like _____ (monkey)?—No, I _____. (do)24.How many _____ (mango) do you have?25.Here are two _____ (glass) of _____ (milk).26._________ (that) socks are so big!27.I can't jump. My brother can't jump _________ (too).28.—How many _____ (sandwich) do you have?—We _____ (have) five.29.He is a _____ boy. He can swim very _____ (good).30.Look at ______ (that) cats.三、完成句子31._____ (she) hair is long. _____ (he) hair is short.32.—How much are those ____ (袜子)?—Five yuan, please.33.I ___________ (喜欢香蕉) very much.34.These _____ are very beautiful. I like them very much. 35.Look at the _______. His tail is _______.36.How much are the _______?37.We have some __________ for lunch.38.—Can your brother ______?—Yes, he can.39.Shh! Don't talk. There's a __________ under the tree.40.—小狗在卫生间里吗?—是的,它在。
综合英语(一)期末模拟试题及参考答案
模拟试题练习Ⅰ.Fill in the blanks in the folloeing paragraph with words or expressions, choose the most appropriate from the list given below.TEXT A(1)_____, I enjoy talking about the weather.There is always something that can be talked about. But, (2) ____, some people think that only dull people love to talk about the weather. (3)____, sometimes we do this when a subject is dried up, or when we meet someone whom we haven’t met for quite some time.In these cases, the weather is (4) ____, the best topic to carry on the conversation.We can say some beautiful words about the sunny and mild weather, we can criticize rigorously the persistent rainy days before we can (5)____ land on some topic that we are both interested in. Furthermore, when talking about the weather, you don’t have to commit yourself to anything by putting in such expressions as (6)____ to stress the point. Just learn to talk about the weather, and you will (7)____ have a fair chance of being well likes in England.1. A. Firstly B. Gladly C. Generally speaking2. A. often B. actually C. to my surprise3. A. In fact B. Indeed C. In truth4. A. to my surprise B. eventually C. obviously5. A. undoubtedly B. perhaps C. surely6. A. in my opinion B. in person C.actually7. A. quite likely B. perhaps C. surelyTEXT BDo you know (1) ____ some people have a horror of living in high-rise buildings? No? I do. I know (2)____ they get this feeling. (3) ____ this sense of is quite justified, too. (4)____, you see, I am one of them. This feeling comes from my two months of living at my aunt’s. It (5)____ happened that my aunt lived on the 28th floor of a 30-storey apartment. And that was(6) ____ I came into contact with self-service elevators.As you know, I’m nearsighted, and the elevator is usually quite dim. (7)____, I had great difficulties in finding the right button. If there was only me in the c age, it was all right, I could peer at the panel of button to my heart’s desire. (8)____, alas, the elevators were usually crowded during rush hours, and I could not elbow my way to the panel, could I? Thus my horror towards high-rise buildings!1. A. how B. when C. why2. A. how B. when C. where3. A. In this way B. What’s more C. On the other hand4. A. Subsequently B. Because C. Because of5. A . just B. even C. when6. A. then B. when C. where7. A. However B. Otherwise C. Consequently8. A. Though B.But C.In spite ofTEXT CI just graduate from a technical school and was eager to work in a lab. (1) ____ my uncle Clare was a famous scientist working on the use of solar energy in aninstitute and I thought he could help me out. (2) ____, I still had to be interviewed by the Director first. I had always been scared of interviews. I would become very nervous, I might even lose my head any say something inadequate. (3)____ I could turn to my uncle for help .He might understand my worries. Anyway, I was (4)____ his favourite nephew and had always been known to be a top student. But he refused to intervene and said, “Business is business” .(5)____, I was greatly disappointed.(6)_____ I complained to my father about his brother. I was confident that he would be on my side. (7)_____, he didn’t see my point, either. Now, who was in the wrong, my Uncle Clare, my father, or myself? What do you think?1. A. Fortunately B. Incidentally C. Happily2. A. Moreover B. To my surprise C. Actually3. A. Certainly B. Perhaps C.Very likly4. A. persumably B. quite properly C. honestly5. A. Furthermore B. To be frank C Unfortunately6. A . Natuarlly B. Perhaps C Surely7. A. Undoubtely B. In fact C UnfortunatelyⅡ. The following sentences go together to a note of introduction, bur they are in the wrong order, put them right.TEXT A1 June, 2010 Dear Mr. Sullivan,a.He is a linguistics student at our university.b.This is to introduce Mr. Hu Ming.c.Any assistance rendered him would be highly appreciated.d.Mr. Hu is looking for a teaching assistant’s post.Thank you.yours,Geoffrey Jackson __--__--__--__TEXT Ba. Dear Prof.Cai,b. Please accept our heartiest congratulations!c. We know, of course , how you’ve worked.d. We have just been informed.e. Your life work on elementary Chinese teaching methodology had been fullyrecognized during the International Conference on Language Education.f. We are your students.g. This is the first honour ever won by a Chinese scholar.h. Your article “Teaching Chinese as a Foreign Language” was awaeded first prize.i. You’re fully worthy of it!j. Respectfully yours, Ron, Mabel, Kay , Pete(Connectives: that, since, where)Ⅲ.Translation. (30’)A. Translate the following to Chinese.1.scenic spots and places of historical interest ____________2.consult an encyclopaedia___________3.on the contrary__________4.All good things came to an end.___________________B. Translate the following to English.1. 如果我是你的话,我就去看医生了。
小学英语四年级上学期期末模拟试题(及答案)(1)
一、选择填空1.—How many _____ do you have? ( )—_____. It’s green.A.pears; Three B.pears; Only one C.pear; One on’t be sad. I _______ table tennis either. ( )A.play the B.can play C.can’t play 3.The cat is fat ________ big. ( )A.or B.but C.and 4.—Where _____ my new shoes?( )—_____ in the box.A.is; It's B.are; They're C.are; It's 5.I’m hungry. I’d like a ______. ( )A.rice B.sandwich C.cup of coffee 6.How many ____ do you have? ()A.a shoe B.shoes C.shoe7.____________ a big sandwich! ( )A.What B.What a C.What some 8.—________ is it? ( )—Five yuan.A.How many B.How much C.What 9.This ______ our doll. Her hair ______long. ( )A.is, is B.are, are C.is, are 10.—I can’t see my red ball, Jim. ( )—Oh, look, it’s ______ the door.A.on B.behind C.at 11.—What's that? ( )—It's an __________.A.toy lion B.snowman C.umbrella 12.—_____ stickers do you have? ( )—Fourteen.A.How much B.How nice C.How many 1: Do you like _______? ( )B: Yes, I do.A.mangoes B.apple C.dog1: Look at our new dolls. ( )B: _____________A.Thank you. B.How nice! C.It’s nice. 15.Tom is a tall boy. ______ hair ______ long. ( )A.He’s; is B.He’s; are C.His; is二、用单词的适当形式填空16.—What _____ (would) you like?—I’d like two _____ (sa ndwich) and two cups of coffee, please.17.I don’t have ________ (some) oranges.18.Yang Ling and I ________ (be) good friends.19.Tina just would like two ______ (glass) of juice and some cakes. 20.How many _________ (robot) do you have?21.I like __________ (tiger).22.—How ______ (many) is the cap?—It’s twelve yuan.23.I like ________ (monkey). They’re cute.24.—Do you like _____ (monkey)?—No, I _____. (do)25.I'd like some _____ (fish). I'd like some _____ (tea), please.26.—_____ (She's / Her) a beautiful girl.—_____ (She's / Her) eyes _____ (is / are) big.27.Yang Ling can dance _____ (good).28._____ (she) is short. _____ (she) hair is long.29.These are _____ (he) socks.30.How much _____ (be) the fan and the umbrella?三、完成句子31.—Can you ____ (跳) high?—No, I can’t. But I can try.32.—How many bananas _____________(你想要)? —I’d like four. 33.—How much are those ____ (袜子)?—Five yuan, please.34.Would you like some ________ (三明治)?35.These _____ are very beautiful. I like them very much.36.—Can your brother ______?—Yes, he can.37.I have a doll. Her ______ are big.38.Mr. Green is hungry, He would like some r______.39.Liu Tao's tennis __________ are white.40.A: I can _______. Can you?B: No, I can’t. But I can play _______. Look!A: Well _______ (好样的)!四、阅读理解4Look! This is my study. It’s clean and nice. A desk and a chair are on the floor. A lamp is on the desk. A bookshelf is behind the chair. Some books are on the bookshelf. There is a picture on the wall. Three people are in the picture. The man is my father. The woman is my mother. Who is the girl? Do you know?41、The study is _______. ( )A.clean and big B.nice and big C.clean and nice42、_______ are on the floor. ( )A.A desk and a chair B.A desk and two chairs C.Two desks and a chair43、A bookshelf is _______ the chair. ( )A.in front of B.behind C.on44、A _______ is on the wall. ( )A.lamp B.picture C.map45、The girl is _______. ( )A.my sister B.my brother C.me五、阅读理解4Hello! I'm Billy. I'm a student. I have a big and happy family. My grandmother has short white hair. She looks very nice. My grandfather has short white hair, too. He's very kind. My father has short black hair and small eyes. He is a little fat. He works in a hospital. He is a doctor. My mother works in a school. She is an English teacher. She likes sports. My baby sister is very cute. Her name is Sue. I love my family.46、How many people are there in the family? ( )A.Two B.Six C.Five47、Who has short white hair? ( )A.Grandparents B.Father C.Grandmother48、What's the baby sister's name? ( )A.Sue B.Billy C.Amy49、What's the mother's job? ( )A.A doctor B.A teacher C.A nurse50、He works in a hospital. Here, “hospital” means (意思是). ( )A.学校B.农场C.医院六、阅读理解4Hello! My name is Lily. I’m ten years old. Welcome to my home. This is the living room. A table is near the sofa. The red phone is on the table. This is the bedroom. A big bed is in it. This is the study. My desk is near the window. My schoolbag is on the desk. This is the kitchen. A white fridge is in it. This is the bathroom. My mother is in the bathroom.51、Lily is ________ years old. ( )A.eleven B.nine C.ten52、The table is near the ________. ( )A.bed B.sofa C.fridge53、The phone is ________. ( )A.red B.blue C.white54、Lily’s desk is in the ________. ( )A.living room B.study C.bedroom55、The ________ is in the kitchen. ( )A.sofa B.phone C.fridge七、阅读理解4读短文内容,选择正确答案。
七年级上册数学期末模拟试题及答案解答(1)
七年级上册数学期末模拟试题及答案解答(1)一、选择题1.已知线段AB=m,BC=n,且m2﹣mn=28,mn﹣n2=12,则m2﹣2mn+n2等于()A.49B.40C.16D.92.“幻方”在中国古代称为“河图”、“洛书”,又叫“纵横图”.其主要性质是在一个由若干个排列整齐的数组成的正方形中,图中任意一横行,一纵行及对角线的几个数之和都相等.图⨯幻方.有人建议向火星发射如图(2)所示的幻方图案,如果火星上有(l)所示是一个33智能生物,那么他们可以从这种“数学语言”了解到地球上也有智能生物(人).图(3)是⨯幻方,请你类比图(l)推算图(3)中P处所对应的数字是()一个未完成的33A.1 B.2 C.3 D.4=++,则称n为“好3.对于一个自然数n,如果能找到正整数x、y,使得n x y xy=++⨯,则3是一个“好数”,在8,9,10,11这四个数中,“好数”.例如:31111数”的个数共有()个A.1 B.2 C.3 D.44.将正整数1至2018按一定规律排列如表,平移表中带阴影的方框,则方框中的三个数的和可以是()A.2019B.2018C.2016D.20135.如图表示的是用火柴棒搭成的一个个图形,第1个图形用了5根火柴,第2个图形用了8根火柴,…,照此规律,用295根火柴搭成的图形是()A.第80个图形B.第82个图形C.第84个图形D.第86个图形6.下列四个选项中,不是正方体展开图形的是()A .B .C .D .7.一个正方体的每个面都写有一个汉字,其平面展开图如图所示,则在该正方体中,和“我”相对面上所写的汉字是( )A .美B .丽C .琼D .海8. 已知:如图,C 是线段AB 的中点,D 是线段BC 的中点,AB =20 cm ,那么线段AD等于( )A .15 cmB .16 cmC .10 cmD .5 cm9.如图,若已知七巧板拼图中的平行四边形的面积为2,则图中,最大正方形面积为( )A .8B .10C .16D .3210.一组按规律排列的多项式: 233547,,,,x y x y x y x y +-+-,其中第10个式子是( ) A .1019x y -B .1019x y +C .1021x y -D .1017x y -11.下列解方程的步骤正确的是( ) A .由2x +4=3x +1,得2x +3x =1+4 B .由3(x ﹣2)=2(x +3),得3x ﹣6=2x +6C .由0.5x ﹣0.7x =5﹣1.3x ,得5x ﹣7=5﹣13xD .由1226x x -+-=2,得3x ﹣3﹣x +2=12 12.如果-2a m b 2与12a 5b n+1的和仍然是单项式,那么m +n 的值为( ). A .5B .6C .7D .813.按照如图所示的计算程序,若输入的x =﹣3,则输出的值为﹣1:若输入的x =3,则输出的结果为( )A .12B .112C .2D .314.如图,在1000个“○”中依次填入一列数字1231000,,,m m m m 使得其中任意四个相邻“○”中所填数字之和都等于10-,已知251m x =-,9992m x =-,则x 的值为( )A .1B .1-C .2D .2-15.若式子()222mx 2x 83x nx -+--的值与x 无关,n m 是( ) A .49B .32C .54D .9416.如果a+b <0,并且ab >0,那么( ) A .a <0,b <0B .a >0,b >0C .a <0,b >0D .a >0,b <017.若数a ,b 在数轴上的位置如图示,则( )A .a +b >0B .ab >0C .a ﹣b >0D .﹣a ﹣b >018.小颖随机抽查他家6月份某5天的日用电量(单位:度),结果如下:9,11,7,10,8.根据这些数据,估计他家6月份日用电量为( ) A .6度B .7度C .8度D .9度19.求1+2+22+23+…+22019的值,可令S =1+2+22+23+…+22019,则2S =2+22+23+…+22019+22020因此2S -S =22020-1.仿照以上推理,计算出1+5+52+53+…+52019的值为( ) A .52019-1 B .52020-1C .2020514-D .2019514-20.如图是一根起点为1的数轴,现有同学将它弯折,弯折后虚线上第一行的数是1,第二行的数是13,第三行的数是43,…,依此规律,第五行的数是()A.183 B.157 C.133 D.9121.在求两位数的平方时,可以用“列竖式”的方法进行速算,求解过程如图1所示.仿照图1,用“列竖式”的方法计算一个两位数的平方,部分过程如图2所示,若这个两位数的个位数字为a,则这个两位数为()A.a﹣50 B.a+50 C.a﹣20 D.a+2022.现有一列数a1,a2,a3,…,a98,a99,a100,其中a3=2020,a7=-2018,a98=-1,且满足任意相邻三个数的和为常数,则a1+a2+a3+…+a98+a99+a100的值为( )A.1985 B.-1985 C.2019 D.-2019 23.2018年电影《我不是药神》反映了进口药用药贵的事实,从而引起了社会的广泛关注.国家针对部分药品进行改革,看病贵将成为历史.某药厂对售价为m元的药品进行了降价,现在有三种方案.方案一:第一次降价10%,第二次降价30%;方案二:第一次降价20%,第二次降价15%;方案三:第一、二次降价均为20%.三种方案哪种降价最多()A.方案一B.方案二C.方案三D.不能确定24.如图1是一个正方体的展开图,该正方体按如图2所示的位置摆放,此时这个正方体朝下的一面的字是()A.中B.国C.梦D.强25.用同样规格的黑白两种颜色的正方形瓷砖,按下图的方式铺满地面:第(1)个图形有黑色瓷砖6块,第(2)个图形有黑色瓷砖11块,第(3)个图形有黑色瓷砖16块,…,则第(9)个图形黑色瓷砖的块数为( ).A .36块B .41块C .46块D .51块26.已知有理数a ,b 在数轴上表示的点如图所示,则下列式子中正确的是( )A .a ﹣b >0B .a +b >0C .b a>0 D .ab >027.“比a 的3倍大5的数”用代数式表示为( ) A .35a + B .3(5)a +C .35a -D .3(5)a -28.方程114xx --=-去分母正确的是( ). A .x-1-x=-1B .4x-1-x=-4C .4x-1+x=-4D .4x-1+x=-129.下列各组数中,数值相等的是( ) A .﹣22和(﹣2)2 B .23和 32C .﹣33和(﹣3)3D .(﹣3×2)2和﹣32×2230.骰子是一种特别的数字立方体(见下图),它符合规则:相对两面的点数之和总是7,下面四幅图中可以折成符合规则的骰子的是( )A .B .C .D .【参考答案】***试卷处理标记,请不要删除一、选择题 1.C 解析:C 【解析】 【分析】将两个式子相减后即可求解. 【详解】 两式相减得:m2﹣mn-mn+ n2=28-12,即 m2﹣2mn+n2=16,故选C.【点睛】本题考查了整式加减的应用,正确进行整式的加减是解题的关键..2.B解析:B【解析】【分析】设第1列第3行的数字为x,P处对应的数字为p,根据每一横行、每一竖列以及斜对角线上的点数的和相等,可得x+1+(-2)=x +(-3)+p,可得P处数字.【详解】解:设第1列第3行的数字为x,P处对应的数字为p,根据题意得,x+(-2)+1=x+(-3)+p,解得p=2,故选:B.【点睛】本题通过九方格考查了有理数的加法.九方格题目趣味性较强,本题的关键是找准每一横行、每一竖列以及两条斜对角线上的数字的和相等,据此列方程求解.3.C解析:C【解析】【分析】根据题意,由n=x+y+xy,可得n+1=x+y+xy+1,所以n+1=(x+1)(y+1),因此如果n+1是合数,则n是“好数”,据此判断即可.【详解】根据分析,∵8=2+2+2×2,∴8是好数;∵9=1+4+1×4,∴9是好数;∵10+1=11,11是一个质数,∴10不是好数;∵11=2+3+2×3,∴11是好数.综上,可得在8,9,10,11这四个数中,“好数”有3个:8、9、11.故选C.【点睛】此题主要考查了有理数的混合运算,要熟练掌握,解答此题的关键是要明确:(1)有理数混合运算顺序:先算乘方,再算乘除,最后算加减;同级运算,应按从左到右的顺序进行计算;如果有括号,要先做括号内的运算.(2)进行有理数的混合运算时,注意各个运算律的运用,使运算过程得到简化;此题还考查了对“好数”的定义的理解,要熟练掌握,解答此题的关键是要明确:如果n +1是合数,则n 是“好数”.4.D解析:D 【解析】 【分析】设中间数为x ,则另外两个数分别为11x x -+、,进而可得出三个数之和为3x ,令其分别等于四个选项中数,解之即可得出x 的值,由x 为整数、x 不能为第一列及第八列数,即可确定x 值,此题得解. 【详解】解:设中间数为x ,则另外两个数分别为11x x -+、, ∴三个数之和为()()113x x x x -+++=. 当32019x =时, 解得:673x =, ∵673=84×8+1,∴2019不合题意,故A 不合题意; 当32018x =时, 解得:26723x =,故B 不合题意; 当32016x =时, 解得:672x =, ∵672=84×8,∴2016不合题意,故C 不合题意; 当32013x =时, 解得:671x =, ∵671=83×8+7,∴三个数之和为2013,故D 符合题意. 故选:D . 【点睛】本题考查了一元一次方程的应用以及规律型中数字的变化类,找准等量关系,正确列出一元一次方程是解题的关键.5.C解析:C 【解析】 【分析】根据图形可以看出第1个图形有5根火柴棒,第2个图形有8根火柴棒,第3个图形有12根火柴棒,第4个图形有15根火柴棒,不难看出奇数个图形的火柴棒个数为5+7(n-1)×12,偶数个图形的火柴棒个数,8+7(n-2)×12,由此可解决问题.【详解】解:根据图形可以看出第1个图形有5根火柴棒,第2个图形有8根火柴棒,第3个图形有12根火柴棒,第4个图形有15根火柴棒,不难看出奇数个图形的火柴棒个数为5+7(n-1)×12,偶数个图形的火柴棒个数,8+7(n-2)×12,若5+7(n-1)×12=295,没有整数解,若8+7(n-2)×12=295,解得n=84,即用295根火柴搭成的图形是第84个图形,故选:C.【点睛】本题考查了根据图象探索规律问题,从简单的情形考虑,发现规律解决问题.6.A解析:A【解析】【分析】根据平面图形的折叠及正方体的展开图解答,中间四联方,上下各一个,可以围成正方体.【详解】正方体共有11种表面展开图,B、C、D能围成正方体;A、不能,折叠后有两个面重合,不能折成正方体.故选:A.【点睛】本题考查的是学生的立体思维能力.解题时勿忘记四棱柱的特征及正方体展开图的各种情形.7.B解析:B【解析】【分析】利用正方体及其表面展开图的特点解题即可.【详解】解:这是一个正方体的平面展开图,共有六个面,其中面“爱”与面“琼”相对,面“海”与面“美”相对,面“我”与面“丽”相对;故选:B.【点睛】本题考查了正方体相对两个面上的文字,注意正方体的空间图形,从相对面入手、分析及解答问题.8.A解析:A【解析】【分析】根据C点为线段AB的中点,D点为BC的中点,可知AC=CB=12AB,CD=12CB,AD=AC+CD,又AB=4cm,继而即可求出答案.【详解】∵点C是线段AB的中点,AB=20cm,∴BC=12AB=12×20cm=10cm,∵点D是线段BC的中点,∴BD=12BC=12×10cm=5cm,∴AD=AB-BD=20cm-5cm=15cm.故选A.【点睛】本题考查了两点间的距离的知识,注意理解线段的中点的概念.利用中点性质转化线段之间的倍分关系是解题的关键.9.C解析:C【解析】【分析】根据七巧板的性质,分别计算出每一块图形的面积,最后再求和即可.【详解】由题意可知,6号的面积为:2,则1号的面积为:1,2号的面积为:2,3号的面积为:2,4号的面积为:4,5号的面积为:1,7号的面积为:4,所以最大正方形面积为:122412416++++++=.故选C.【点睛】本题考查了七巧板拼图,计算出每一块图形的面积是解题的关键.10.A解析:A【解析】【分析】把已知的多项式看成由两个单项式组成,分别找出两个单项式的规律,也就知道了多项式的规律.【详解】多项式的第一项依次是x,x2,x3,x4,…,x n,第二项依次是y,-y3,y5,-y7,…,(-1)n+1y2n-1,所以第10个式子即当n=10时,代入到得到x n+(-1)n+1y2n-1=x10-y19.故选:A.【点睛】本题主要考查了多项式,本题属于找规律的题目,把多项式分成几个单项式的和,分别找出各单项式的规律是解决这类问题的关键.11.B解析:B【解析】【分析】根据一元一次方程的解题步骤,去分母、去括号、移项、合并同类项、化系数为1一一判断即可,其中C选项利用等式的性质进行化简.【详解】解:A、2x+4=3x+1,移项得:2x-3x=1-4,故本选项错误;B、3(x-2)=2(x+3),去括号得:3x-6=2x+6,故本选项正确;C、0.5x-0.7x=5-1.3x,利用等式基本性质等式两边都乘以10得:5x-7x=50-13x,故本选项错误;D、1226x x-+-=2,去分母得:3x-3-x-2=12,故本选项错误;故选:B.【点睛】本题考查了一元一次方程的解法,能正确根据等式的性质进行变形是解此题的关键.解一元一次方程的一般步骤:去分母,去括号,移项,合并同类项,系数化成1.12.B解析:B【解析】【分析】所含字母相同,并且相同字母的指数也相同,这样的项叫做同类项.【详解】解:∵-2a m b2与12a5b n+1是同类项,∴m=5,n+1=2,解得:m=1,∴m+n=6.故选B.【点睛】本题主要考查的是同类项的定义,熟练掌握同类项的定义是解题的关键.13.D解析:D【解析】【分析】直接利用已知代入得出b的值,进而求出输入﹣3时,得出y的值.【详解】∵当输入x的值是﹣3,输出y的值是﹣1,∴﹣1=32b -+,解得:b=1,故输入x的值是3时,y=2331⨯-=3.故选:D.【点睛】本题主要考查了代数式求值,正确得出b的值是解题关键.14.C解析:C【解析】【分析】由于任意四个相邻数之和都是-10得到a1+a2+a3+a4=a2+a3+a4+a5,a5+a6+a7+a8=a6+a7+a8+a9,…,则a1=a5=a9=…=,利用同样的方法可得到a1=a5=a9=…=x-1,a2=a6=a10=…-7,a3=a7=a11=…=-2x,a4=a8=a12=…=0,所以已知a999=a3=-2x,a25=a1=x-1,由此联立方程求得x即可.【详解】∵a1+a2+a3+a4=a2+a3+a4+a5,a5+a6+a7+a8=a6+a7+a8+a9,…,∴a1=a5=a9=…=x-1,同理可得a2=a6=a10=…=-7,a3=a7=a11=…=-2x,a4=a8=a12= 0∵a1+a2+a3+a4=-10,∴x-1-7-2x+0=-10,解得:x=2.故答案为:2.【点睛】本题考查数字的变化规律,通过从一些特殊的数字变化中发现不变的因素或按规律变化的因素,然后推广到一般情况.15.D解析:D【解析】【分析】直接利用去括号法则化简,再利用合并同类项法则计算得出答案.【详解】解:∵式子2mx2-2x+8-(3x2-nx)的值与x无关,∴2m-3=0,-2+n=0,解得:m=32,n=2,故m n=(32)2= 94.故选D.【点睛】此题主要考查了合并同类项,去括号,正确得出m,n的值是解题关键.16.A解析:A【解析】分析:根据ab大于0,利用同号得正,异号得负的取符号法则得到a与b同号,再由a+b 小于0,即可得到a与b都为负数.详解:∵ab>0,∴a与b同号,又a+b<0,则a<0,b<0.故选A.点睛:此题考查了有理数的乘法、加法运算,熟练掌握运算法则是解本题的关键.17.D解析:D【解析】【分析】首先根据有理数a ,b 在数轴上的位置判断出a 、b 两数的符号,从而确定答案.【详解】由数轴可知:a <0<b ,a<-1,0<b<1,所以,A.a+b<0,故原选项错误;B. ab <0,故原选项错误;C.a-b<0,故原选项错误;D. 0a b -->,正确.故选D .【点睛】本题考查了数轴及有理数的乘法,数轴上的数:右边的数总是大于左边的数,从而确定a ,b 的大小关系.18.D解析:D【解析】【分析】先求出所抽查的这5天的平均用电量,从而估计他家6月份日用电量为.【详解】解:∵这5天的日用电量的平均数为91171085++++=9(度), ∴估计他家6月份日用电量为9度,故选:D .【点睛】 本题考查平均数的定义和用样本去估计总体.平均数等于所有数据的和除以数据的个数.19.C解析:C【解析】【分析】根据题目信息,设S=1+5+52+53+…+52019,表示出5S=5+52+53+…+52020,然后相减求出S 即可.【详解】根据题意,设S=1+5+52+53+…52019,则5S=5+52+53+…52020,5S-S=(5+52+53+…52020)-(1+5+52+53+…52019),4S=52020-1,所以,1+5+52+53+…+52019 =2020 514故选C.【点睛】本题考查了有理数的乘方,读懂题目信息,理解等比数列的求和方法是解题的关键.20.B解析:B【解析】【分析】观察根据排列的规律得到:所有的数字都是奇数,发生弯折的数与上一个弯折的数的差依次是2,4,6,8…,每一行的数比上次增加连续的三个偶数.依次计算即可得到结论.【详解】所有的数字都是奇数,发生弯折的数与上一个弯折的数的差依次是2,4,6,8…,每一行的数每次增加连续的三个偶数.第一行数字为1第二行数字为1+(2+4+6)=1+2(1+2+3)=1+3×4=13第三行数字为1+(2+4+6)+(8+10+12)=1+2(1+2+3+4+5+6)=1+6×7=43第四行数字为1+(2+4+6)+(8+10+12)+(14+16+18)=1+2(1+2+3+4+5+6+7+8+9)=1+9×10=91第五行数字为1+(2+4+6)+(8+10+12)+(14+16+18)+(20+22+24)=1+2(1+2+3+4+5+6+7+8+9+10+11+12)=1+12×13=157.故选B.【点睛】本题考查了规律型:数字的变化类:通过从一些特殊的数字变化中发现不变的因素或按规律变化的因素,然后推广到一般情况.21.B解析:B【解析】【分析】根据表格可得,第一行从右向左分别为个位数和十位数字的平方,每个数的平方占两个空,平方是一位数的前面的空用0填补,第二行从左边第2个空开始向右是这个两位数的两个数字的乘积的2倍,然后相加即为这个两位数的平方,根据此规律求解设这个两位数的十位数字为b,根据图3,利用十位数字与个位数字的乘积的2倍的关系列出方程用a表示出b,然后写出即可.【详解】解:设这个两位数的十位数字为b,由题意得,2ab=10a,解得b=5,所以,这个两位数是10×5+a=a+50.故答案为B .【点睛】本题考查了数字变化规律的,仔细观察图形、观察出前两行的数与两位数的十位和个位上的数字的关系是解答本题的关键.22.B解析:B【解析】【分析】根据任意相邻三个数的和为常数列出求出a 1=a 4,a 2=a 5,a 3=a 6,从而得到每三个数为一个循环组依次循环,再求出a 100=a 1,然后分组相加即可得解.【详解】解:∵任意相邻三个数的和为常数,∴a 1+a 2+a 3=a 2+a 3+a 4,a 2+a 3+a 4=a 3+a 4+a 5,a 3+a 4+a 5=a 4+a 5+a 6,∴a 1=a 4,a 2=a 5,a 3=a 6,∴原式为每三个数一个循环;∵a 3=2020,a 7=-2018,a 98=-1,∵732÷=…1,98332÷=…2,∴a 1= a 7=-2018,a 2=a 98=-1,∴a 1+a 2+a 3=-2018-1+2020=1;∵100333÷=…1,∴a 100=a 1=-2018;∴a 1+a 2+a 3+…+a 98+a 99+a 100=(a 1+a 2+a 3)+…+(a 97+a 98+a 99)+a 100=133********⨯-=-;故选择:B.【点睛】本题是对数字变化规律的考查,求出每三个数为一个循环组依次循环是解题的关键,也是本题的难点.23.A解析:A【解析】【分析】先用代数式分别表示出三种方案降价前后的价格,然后进行比较即可.【详解】解:由题意可得:方案一降价0.1m+m (1-10%)30%=0.37m ;方案二降价0.2m+m (1-20%)15%=0.32m ;方案三降价0.2m+m(1-20%)20%=0.36m;故答案为A.【点睛】本题考查列代数式,解答本题的关键是明确题意、列出相应的代数式并进行比较..24.B解析:B【解析】【分析】动手进行实验操作,或者在头脑中模拟(想象)折纸、翻转活动即可求解.【详解】解:由图1可得,“中”和第三行的“国”相对;第二行“国”和“强”相对;“梦”和“梦”相对;由图2可得,此时小正方体朝下面的字即为“中”的相对面对应的字,即为“国”.故选:B.【点睛】本题主要考查了正方体相对两个面上的文字,注意正方体的空间图形,从相对面入手,分析及解答问题.25.C解析:C【解析】【分析】根据题意观察图像找出数量上每次增加黑色瓷砖的变化规律,进而分析推出一般性的结论求解.【详解】⨯+=块.解:∵第1个图形有黑色瓷砖5116⨯+=块.第2个图形有黑色瓷砖52111⨯+=块.第3个图形有黑色瓷砖53116…⨯+=块.∴第9个图形中有黑色瓷砖59146故选:C.【点睛】本题主要考查图形的变化规律,解题的关键是通过归纳与总结,得到其中的一般规律.26.A解析:A【解析】【分析】根据数轴判断出a、b的正负情况以及绝对值的大小,再根据有理数的加减法法则以及乘除法法则对各选项分析判断后利用排除法求解.【详解】由图可知,b <0,a >0,且|b|>|a|,A 、a -b >0,故本选项符合题意;B 、a +b <0,故本选项不合题意;C 、b a<0,故本选项不合题意; D 、ab <0,故本选项不合题意.故选:A .【点睛】 本题考查了数轴,熟练掌握数轴的特点并判断出a 、b 的正负情况以及绝对值的大小是解题的关键.27.A解析:A【解析】【分析】根据题意可以用代数式表示比a 的3倍大5的数,本题得以解决.【详解】解:比a 的3倍大5的数”用代数式表示为:3a +5,故选A .【点睛】本题考查列代数式,解题的关键是明确题意,列出相应的代数式.28.C解析:C【解析】1144(1)4414x x x x x x --=---=--+=- 方程左右两边各项都要乘以4,故选C29.C解析:C【解析】【分析】将原式各项运用有理数的运算法则计算得到结果,比较即可.【详解】解:A 、-22=-4,(-2)2=4,不相等,故A 错误;B 、23=8,32=9,不相等,故B 错误;C 、-33=(-3)3=-27,相等,故C 正确;D 、(-3×2)2=36,-32×22=-36,不相等,故D 错误.故选C【点睛】此题考查了有理数的乘方,以及有理数的乘法,熟练掌握运算法则是解本题的关键.30.C解析:C【解析】【分析】正方体的表面展开图,相对的面之间一定相隔一个正方形,根据这一特点对各选项分析判断后利用排除法求解.【详解】根据正方体的表面展开图,相对的面之间一定相隔一个正方形,A、1点与3点是向对面,4点与6点是向对面,2点与5点是向对面,所以不可以折成符合规则的骰子,故本选项错误;B、3点与4点是向对面,1点与5点是向对面,2点与6点是向对面,所以不可以折成符合规则的骰子,故本选项错误;C、4点与3点是向对面,5点与2点是向对面,1点与6点是向对面,所以可以折成符合规则的骰子,故本选项正确;D、1点与5点是向对面,3点与4点是向对面,2点与6点是向对面,所以不可以折成符合规则的骰子,故本选项错误.故选C.【点睛】本题主要考查了正方体相对两个面上的文字,注意正方体的空间图形,从相对面入手,分析及解答问题.。
2022-2023学年北京市昌平区高二年级上册学期数学期末模拟测试(一)试题【含答案】
2022-2023学年北京市昌平区第二中学高二上学期数学期末模拟测试(一)试题一、单选题1.已知点,则线段的中点坐标为( )(1,1),(2,5)M N -MN A .B .C .D .(3,4)3(,2)2(1,6)1(,3)2【答案】B【解析】利用中点坐标公式即可求解.【详解】由点,(1,1),(2,5)M N -则线段的中点坐标为,即.MN 1215(,)22+-+3(,2)2故选:B2.圆心为,半径为的圆的方程为( )(1,2)-5A .B .22(1)(2)5x y -++=22(1)(2)5x y ++-=C .D .22(1)(2)25x y -++=22(+1)(2)25x y +-=【答案】D【解析】根据圆的标准方程的形式,由题中条件,可直接得出结果.【详解】圆心为,半径为的圆的方程为.(1,2)-522(+1)(2)25x y +-=故选:D.3.已知直线和互相平行,则( )1:70l x ay ++=2:(2)310l a x y -++=A .B .C .或D .或3a =1a =-1a =-3a =1a =3a =-【答案】C【解析】根据两直线平行的条件求解.【详解】时,两直线显然不平行,时,则,解得或.0a =0a ≠12231//17a l l a -⇔=≠1a =-3a =故选:C .【点睛】易错点睛:本题考查由直线平行求参数值,解题时要注意在由条件求参数12210A B A B -=时,求得的参数值一般需代入直线方程检验,去除两直线重合的可能,否则易出错.如果采取分类讨论方法:先考虑系数为0,然后在一个方程中系数全不为0时,用比值进行求解,一般不会出4.在的展开式中,的系数为( )4(x 2x A .6B .12C .24D .48【答案】B【分析】由展开式的通项,由得出的系数.4(x 2r =2x【详解】展开式的通项为4(x (44rr rC x-由,解得,则的系数为42-=r 2r =2x (2246212C =⨯=故选:B5.如图所示,在正方体中,点F 是侧面的中心,设,则1111ABCD A B C D -11CDD C 1,,AD a AB b AA c ===( )AF =A .B .C .D .1122a b c++ 1122a b c++1122a b c-++1122a b c ++【答案】A【分析】根据空间向量基本定理将转化为即可选出答案.AF,,a b c 【详解】解:由题知, 点F 是侧面的中心,11CDD C 为中点,F ∴1DC 则AF AD DF=+112AD DC += ()11112AD DD D C =++ ()112AD AA AB=++ ,1122a b c=++6.用数字1,2,3,4,5组成没有重复数字的五位数,其中奇数的个数为A .24B .48C .60D .72【答案】D【详解】试题分析:由题意,要组成没有重复数字的五位奇数,则个位数应该为1或3或5,其他位置共有种排法,所以奇数的个数为,故选D.44A 44372A =【解析】排列、组合【名师点睛】利用排列、组合计数时,关键是正确进行分类和分步,分类时要注意不重不漏,分步时要注意整个事件的完成步骤.在本题中,个位是特殊位置,第一步应先安排这个位置,第二步再安排其他四个位置.7.设,则“”是“直线与直线垂直”的( )R a ∈3a =-1:210l ax y +-=2:(1)20l a x ay ++-=A .充分不必要条件B .必要不充分条件C .重要条件D .既不充分也不必要条件【答案】A【分析】先根据直线垂直求出的值,再根据充分性和必要性的概念得答案.a 【详解】直线与直线垂直1:210l ax y +-=2:(1)20l a x ay ++-=则,解得或,()120a a a ++=0a =3a =-则“”是“直线与直线垂直”的充分不必要条件.3a =-1:210l ax y +-=2:(1)20l a x ay ++-=故选:A.8.已知双曲线与椭圆有相同的焦点,则( )2221(0)x y a a -=>22183x y +==aA B .C .2D .4【答案】C【解析】先求出椭圆焦点坐(椭圆的半焦距),再由双曲线中的关系计算出.a【详解】椭圆的半焦距为,22183x y +=c ==∴双曲线中,∴(∵).215a +=2a =0a >故选:C .【点睛】晚错点睛:椭圆与双曲线中都是参数,但它们的关系不相同:椭圆中,,,a b c 222a b c =+双曲线中,不能混淆.这也是易错的地方.222+=a b c 9.已知直线和圆:,则直线与圆的位置关系为( )10l kx y k -+-=:C 2240x y x +-=l C A .相交B .相切C .相离D .不能确定【答案】A【解析】求出直线过的定点坐标,确定定点在圆内,则可判断.P 【详解】直线方程整理为,即直线过定点,(1)10k x y --+=(1,1)P 而,在圆内,22114120+-⨯=-<P C ∴直线与圆相交.l C 故选:A .【点睛】关键点点睛:本题考查直线与圆的位置关系.关键点有两个:一是确定动直线所过定点坐标,二是确定点到圆的位置关系:圆的一般方程为,点,C 22(,)0f x y x y Dx Ey F =++++=00(,)P x y 则点在圆内,点在圆上,00(,)0f x y <⇔P C 00(,)0f x y =⇔P C 点在圆外.00(,)0f x y >⇔P C 10.如图,P 是边长为1的正方体对角线上一动点,设的长度为x ,若1111ABCD A B C D -1AC AP 的面积为,则的图象大致是( )PBD △()f x ()f xA .B .C .D .【答案】A【分析】设正方体的棱长为,连接交于,连接,则是等腰的高,1AC BD O PO PO PBD △的面积为,代入,即可PBD △1()2f x BD PO =⨯PO =PO 得到函数解析式,即可得到答案.【详解】设正方体的棱长为,连接交于,连接,则是等腰的高,1AC BD O PO PO PBD △故的面积为PBD △1()2f x BD PO =⨯在中,PAOPO ==()102f x x ∴==≤≤画出其图象如图所示故选:A.二、填空题11.的二项展开式中的常数项为_______.62x x ⎛⎫- ⎪⎝⎭【答案】160-【分析】先求出展开式的通项公式,令可得答案.()62162C rrrr T x -+-=620r -=【详解】的二项展开式的通项为.62x x ⎛⎫- ⎪⎝⎭()6621662C 2C rr r rr r r T x x x --+⎛⎫=-= -⎪⎝⎭令得.所以的二项展开式的常数项为.620r -=3r =62x x ⎛⎫- ⎪⎝⎭()336216C 0-=-故答案为:160-12.若空间向量,,共面,则______________.()5,3,a m =()1,1,2b =--()0,2,3c =-m =【答案】22-【解析】设,根据空间向量的坐标运算可得出关于、、的方程组,即可解得实数a xb yc =+x y m 的值.m 【详解】由于、、共面,设,a b ca xb yc =+ 因为空间向量,,,()5,3,a m =()1,1,2b =--()0,2,3c =-则,解得,52323x x y x y m =⎧⎪-+=⎨⎪--=⎩5422x y m =⎧⎪=⎨⎪=-⎩故答案为:.22-13.如图,在正方体中,E ,F ,G ,H 分别为AA 1,AB ,BB 1,B 1C 1的中点,则异1111ABCD A B C D -面直线EF 与GH 所成的角等于_________.【答案】##60︒3π【分析】根据中点,得到∥,∥,然后根据平行得到为异面直线与所EF 1A B GH 1BC 11A BC ∠EF GH 成角或其补角,最后求角即可.【详解】如图,连接,,,1A B 1BC 11A C 因为,,,分别为,,,的中点,所以∥,∥,为E F G H 1AA AB 1BB 11B C EF 1A B GH 1BC 11A BC ∠异面直线与所成角或其补角,EF GH 因为为正方体,所以三角形为正三角形,所以.1111ABCD A B C D -11A BC 1160A BC ∠=︒故答案为:.60︒14.抛物线上到其焦点的距离为的点的个数为________.24y x =1【答案】1【解析】设抛物线上任意一点的坐标为,根据抛物线的定义求得,并求出对应的,即()00,x y 0x0y 可得出结果.【详解】设抛物线上任意一点的坐标为,()00,x y 抛物线的准线方程为,由抛物线的定义得,解得,此时.24y x ==1x -011x +=00x =00y =因此,抛物线上到其焦点的距离为的点的个数为.24y x =11故答案为:.1【点睛】本题考查利用抛物线的定义求点的坐标,考查计算能力,属于基础题.15.已知曲线,,其中.2221:+=W x y m 4222:+=W x y m 0m >①当时,曲线与有4个公共点;1m =1W 2W ②当时,曲线围成的区域面积大于曲线围成的区域面积;01m <<1W 2W ③,曲线围成的区域面积等于围成的区域面积;1∃>m 1W 2W ④,曲线围成的区域内整点(即横、坐标均为整数的点)个数不少于曲线围成的区域0m ∀>1W 2W 内整点个数.其中,所有正确结论的序号是________.【答案】①③④【解析】当时,由可解得交点坐标,即可判断①;当时,可知1m =2224x y x y +=+01m <<,当取同一个值时,即可判断②;当时,,当与的方(),0,1x y ∈x 2212y y <1m >(),0,x y m ∈1W 2W 程中取同一个大于的数,可得即可判断③;分别讨论当和时的整数点比x 12212y y >01m <≤1m >较可判断④,进而可得正确答案.【详解】对于①:当时,曲线, ,令可得1m =2211:W x y +=4222:+=W x y m 2224x y x y +=+,当时,,当时,,所以与有4个公共点分别为,()2210x x -=0x =1y =±1x =±0y =1W 2W ()0,1,,,共个,故①正确;()0,1-()1,0()1,0-4对于②:当时,由与的方程可知,当取同一个值时,01m <<1W 2W (),0,1x y ∈x ,,当时,,所以,22211:W y m x =-24222:W y m x =-01x <<24x x >2212y y <所以曲线围成的区域面积小于曲线围成的区域面积;故②不正确;1W 2W 对于③:当时,,当与的方程中取同一个大于的数,可得,所1m >(),0,x y m ∈1W 2W x 12212y y >以,曲线围成的区域面积等于围成的区域面积;故③正确;1∃>m 1W 2W 对于④:当时,曲线围成的区域内整点个数等于曲线围成的区域内整点个数,当01m <≤1W 2W 时,取同一个大于的数,可得,此时曲线围成的区域内整点个数较多,所以1m >x 12212y y >1W 曲线围成的区域内整点个数不少于曲线围成的区域内整点个数,故④正确;1W 2W 故答案为:①③④【点睛】关键点点睛:本题解题的关键点是分情况讨论和时,当取同一个值时,01m <≤1m >x 两个曲线方程中的大小的比较,此类多采用数形结合的思想.y 三、双空题16.已知双曲线(其中)的渐近线方程为,则________,的右焦222:14-=x y W a 0a >y x =±=a W 点坐标为________.【答案】 2()【分析】由双曲线的渐近线方程为可得:a =b ,再求出焦点坐标.y x =±【详解】∵双曲线(其中)的渐近线方程为222:14-=x y W a 0a >y x=±∴,∴24a =2a =∴,∴2228c a b =+=c =即的右焦点坐标为W ()故答案为:2,.()四、解答题17.已知圆的圆心坐标为,且与轴相切,直线过与圆交于、两点,且C ()2,0y l ()0,4C M NMN =(1)求圆的标准方程;C (2)求直线的方程.l 【答案】(1)()2224x y -+=(2)或40x y +-=740x y +-=【分析】(1)求出圆的半径,即可得出圆的标准方程;C C (2)利用勾股定理计算出圆心到直线的距离,分析可知直线的斜率存在,设直线的方程为C l l l ,利用点到直线的距离公式可得出关于的方程,解出的值,即可得出直线的方程.4y kx =+k k l 【详解】(1)解:由题意可知,圆的半径为,故圆的标准方程为.C 2C ()2224x y -+=(2)解:设圆心到直线的距离为,则.C ld d ==若直线的斜率不存在,则直线的方程为,此时圆心到直线的距离为,不合乎题意.l l 0x =C l 2所以,直线的斜率存在,设直线的方程为,即,l l 4y kx =+40kx y -+=由点到直线的距离公式可得,解得或,d 1k =-7k =-所以,直线的方程为或,即或.l 4y x =-+74y x =-+40x y +-=740x y +-=18.如图长方体中,,,点为的中点.1111ABCD A B C D -1AB AD ==12AA =E 1DD (1)求证:平面;1//BD ACE (2)求证:平面;1EB ⊥ACE(3)求二面角的余弦值.1--A CE C 【答案】(1)见解析(2)见解析(3)【分析】(1)作辅助线,由中位线定理证明,再由线面平行的判定定理证明即可;1//OE BD (2)连接,由勾股定理证明,,再结合线面垂直的判定定理证明即11, B O AB 1EB OE ⊥1EB AE ⊥可;(3)建立空间直角坐标系,利用向量法求面面角的余弦值即可.【详解】(1)连接交与点,连接BD AC O OE四边形为正方形,点为的中点ABCD ∴O BD 又点为的中点,E 1DD ∴1//OE BD 平面,平面OE ⊂ ACE 1BD ⊄ACE平面1//BD ∴ACE(2)连接11, B O AB 由勾股定理可知,1EB1B O =OE ==22211B O OE EB =+1EB OE∴⊥同理可证,22211B E AE AB +=1EB AE ∴⊥平面,,AE OE E AE OE ⋂=⊂ACE平面1EB ∴⊥ACE(3)建立如下图所示的空间直角坐标系11(1,0,0),(0,1,0)(0,0,1)(0,1,2),(1,1,,,2)A C E CB 显然平面的法向量即为平面的法向量,不妨设为1CC E yDz (1,0,0)m =由(2)可知平面,即平面的法向量为1EB ⊥ACE ACE 1(1,1,1)nEB ==cos ,||m n m n m n ⋅==⋅又二面角是钝角1--A CE C 二面角的余弦值为∴1--A CEC【点睛】关键点睛:在第一问中,关键是利用中位线定理找到线线平行,再由定义证明线面平行;在第二问中,关键是利用勾股定理证明线线垂直,从而得出线面垂直;在第三问中,关键是建立坐标系,利用向量法求面面角的余弦值.19.已知直线l 过,且与抛物线相交于A ,B 两点,O 为坐标原(0,3)-2:8C x y =-||AB =点.(1)求直线l 的方程以及线段的中点坐标;AB (2)判断与是否垂直,并说明理由.OA OB【答案】(1)直线l 的方程为,线段的中点坐标为;3y x =-AB ()4,7--直线l 的方程为,线段的中点坐标为;3y x =--AB ()4,7-(2)不垂直于,理由见解析OA OB 【分析】(1)讨论直线的斜率存在或不存在,当直线的斜率不存在时,直线的方程为与抛l l l 0x =物线只有一个交点,不满足题意;当直线的斜率存在时,设直线的方程为,C l l 3y kx =-,,联立直线和抛物线的方程得到,利用韦达定理和弦长公()11,A x y ()22,B x y l C 28240x kx +-=式得到关于的方程,即可求解;k (2)结合(1)的韦达定理得到,从而得到,即可判断.129y y =0OA OB ⋅≠【详解】(1)当直线的斜率不存在时,即直线的方程为,此时直线与抛物线只有一个交l l 0x =l C 点,不满足题意;当直线的斜率存在时,设直线的方程为,,,l l 3y kx =-()11,A x y ()22,B x y 联立直线和抛物线的方程,得,l C 238y kx x y =-⎧⎨=-⎩28240x kx +-=又,()()22842464960k k ∆=-⨯-=+>则,,128x x k +=-1224x x =-,==解得:或,1k =1k =-当时,直线的方程为,1k =l 3y x =-此时,,128x x +=-()12121233614y y x x x x +=-+-=+-=-所以线段的中点坐标为,即,AB 1212,22x x y y ++⎛⎫⎪⎝⎭()4,7--当时,直线的方程为;1k =-l 3y x =--此时,,128x x +=()12121233614y y x x x x +=----=-+-=-所以线段的中点坐标为,即,AB 1212,22x x y y ++⎛⎫⎪⎝⎭()4,7-综上:直线l 的方程为,线段的中点坐标为;3y x =-AB ()4,7--直线l 的方程为,线段的中点坐标为;3y x =--AB ()4,7-(2)不垂直于,理由如下:OA OB 由(1)得:,()()()()22121212123339243899y y kx kx k x x k x x k k k =--=-++=--⨯-+=又,,()11,OA x y =()22,OB x y=则,1212249150OA OB x x y y ⋅=+=-+=-≠所以不垂直于.OA OB 20.在四棱锥中,为正三角形,平面平面,E 为的中点,P ABCD -PAD PAD ⊥ABCD AD ,,.//AB CD AB AD ⊥224CD AB AD ===(Ⅰ)求证:平面平面;PCD ⊥PAD (Ⅱ)求直线与平面所成角的正弦值;PB PCD (Ⅲ)在棱上是否存在点M ,使得平面?若存在,求出的值;若不存在,说明CD AM ⊥PBE DMDC 理由.【答案】(Ⅰ)详见解析;(ⅡⅢ)在棱上存在点M 满足题意,.CD 14DM DC =【分析】(Ⅰ)根据面面垂直的性质定理可证得平面,由面面垂直的判定定理证得结论;CD ⊥PAD (Ⅱ)取中点,可证得两两互相垂直,由此以为坐标原点建立空间直角坐标系,BC E ,,PE DE EF E 根据线面角的向量求法可求得结果;(Ⅲ)假设存在点满足题意,由线面垂直的性质可知,,由此得到(),1,0M m AM PB ⊥AM PE ⊥,解出后即可得到结果.00AM PB AM EP ⎧⋅=⎪⎨⋅=⎪⎩ m 【详解】(Ⅰ),,,//AB CD AB AD ⊥CD AD ∴⊥平面平面,平面底面,平面,PAD ⊥ABCD PAD ⋂ABCD AD =CD ⊂ABCD平面,又平面,平面平面.CD \^PAD CD ⊂PCD ∴PCD ⊥PAD (Ⅱ)取中点,连接,BC F EF 分别为中点,,平面;,E F ,AD BC //EF CD ∴EF ∴⊥PAD 为等边三角形,为中点,,PAD E AD PE AD ⊥∴平面平面,平面底面,平面,PAD ⊥ABCD PAD ⋂ABCD AD =PE ⊂PAD 平面,PE ∴⊥ABCD 则以为坐标原点,所在直线为轴,可建立如下图所示空间直角坐标系,E ,,EF DE PE ,,x yz 则,,,,(P ()0,1,0D ()4,1,0C ()2,1,0B -,,,(2,1,PB →∴=-(0,1,PD →=()4,0,0DC →=设平面的法向量,PCD (),,n x y z →=则,令,则,,040n PD y n DC x ⎧⋅==⎪⎨⋅==⎪⎩1z =0x=y =()n →∴=设直线与平面所成角为,.PB PCDθsin θ∴=即直线与平面PB PCD (Ⅲ)假设在棱上存在点,使得平面,则,,CD M AM ⊥PBE AM PB ⊥AM PE ⊥设,又,,(),1,0M m ()0,1,0A -(),2,0AM m →∴=,,(2,1,PB →=- (EP →=,解得:,即,2200AM PB m AM EP ⎧⋅=-=⎪∴⎨⋅=⎪⎩1m =1DM =在棱上存在点,使得平面,此时.∴CD M AM ⊥PBE 14DM DC =【点睛】本题考查立体几何中面面垂直关系的证明、空间向量法求解线面角和存在性问题;利用空间向量法求解存在性问题的关键是首先假设存在,采用待定系数法的方式得到所求点所满足的方程,解方程求得系数即可.21.已知椭圆的各顶点均在椭圆上,且对()2222:10x y E a b a b +=>>ABCD E 角线、均过坐标原点,点,、的斜率之积为.AC BD O ()2,1D AC BD14-(1)求椭圆的方程;E (2)过作直线平行于.若直线平行于,且与椭圆交于不同的两点、,与直线D l AC l 'BDE M N 交于点.l P ①证明:直线与椭圆有且只有一个公共点;l E ②证明:存在常数,使得,并求出的值.λ2PM PN PD λ=⋅λ【答案】(1)22182x y +=(2)①证明见解析;②存在,且1λ=【分析】(1)根据已知条件可得出关于、、的方程组,解出这三个量的值,即可得出椭圆a b c 的标准方程;E (2)①求出直线的方程,再将直线的方程与椭圆的方程联立,由可证得结论成立;l l E Δ0=②设直线的方程为,其中、,将直线的方程与椭圆的方程,列l '12y x m =+()11,M x y ()22,N x y l 'E 出韦达定理,求出点的坐标,利用弦长公式并结合韦达定理可求得的值.P λ【详解】(1)解:由已知可得,解得,22411c aabc ⎧=⎪⎪⎪+=⎨⎪⎪=⎪⎩a b c ⎧=⎪⎪=⎨⎪=⎪⎩因此,椭圆的标准方程为.E 22182x y +=(2)解:①,又因为,则,12BD DO k k ==14AC BD k k =-12AC k =-因为,且直线过点,则直线的方程为,即,//l AC l ()2,1D l ()1122y x -=--122y x =-+联立可得,,2212248y x x y ⎧=-+⎪⎨⎪+=⎩2440x x -+=()24440∆=--⨯=因此,直线与椭圆有且只有一个公共点;l E ②,不妨设直线的方程为,其中、,//l BD ' l '12y x m =+()11,M x y ()22,N x y 联立可得,,221248y x mx y ⎧=+⎪⎨⎪+=⎩222240x mx m ++-=()22244241640m m m '∆=--=->由已知不与直线重合,则,所以,,l 'BD 0m ≠()()2,00,2m ∈- 由韦达定理可得,,122x x m +=-21224x x m =-联立可得,即点,12212y x y x m ⎧=-+⎪⎪⎨⎪=+⎪⎩2112x m y m =-⎧⎪⎨=+⎪⎩12,12P m m ⎛⎫-+ ⎪⎝⎭所以,,()2221512244m PD m ⎛⎫=+⋅--=⎪⎝⎭()()()()()2121212151222244PM PM x m x m x x m x x m ⎛⎫⋅=+⋅--⋅--=+-++- ⎪⎝⎭,()()222552422244m m m m m =---+-=由可得,解得,2PM PN PD λ=⋅225544m m λ=⋅1λ=综上所述,存在使得.1λ=2PD PM PN=⋅【点睛】方法点睛:求定值问题常见的方法有两种:(1)从特殊入手,求出定值,再证明这个值与变量无关;(2)直接推理、计算,并在计算推理的过程中消去变量,从而得到定值.。
刑事诉讼法期末模拟试题1有答案
刑事诉讼法模拟试卷一及参考答案一、单项选择题:1、在刑事诉讼中,可以适用简易程序的法院是( )A。
一审法院B.二审法院C.基层人民法院D。
中级人民法院2、某大学留学生之间发生斗殴事件,来自B国的留学生用刀刺伤来自A国的留学生,造成重伤。
本案有管辖权的一审法院应当是()A.基层人民法院B.中级人民法院C.高级人民法院D.最高人民法院3、对判处死刑立即执行的贪污案件有核准权的法院是( )A.最高人民法院B。
高级人民法院C。
中级人民法院D。
专门人民法院4、下列案件中,人民检察院可以直接受理的是()A。
盗窃罪B.虐待罪C.绑架罪D。
贪污罪5、提起附带民事诉讼必须在()A.立案之后,一审审结之前B.立案侦查之前C。
审查起诉之前D。
一审开庭之前6、某市人民法院对一少年杀人案件进行了公开审理,判决后,被告人的法定代理人不服,提出上诉,二审法院应该:()A、改判B、撤消原判,发回重审C、提审D、维持原判7、就案件类别而言,可以由审判员独任审判的案件只能是()A。
自诉案件B.适用简易程序的案件C。
公诉案件D。
基层法院管辖的第一审案件8、被告人的辩护人提出上诉,应当取得()A.人民检察院同意B。
原审人民法院同意C。
被告人同意D.别告人所在单位同意9、A地区人民检察院发现A地区甲县人民法院的一审生效裁判确有错误,依审判监督程序提出抗诉,接受其诉讼的法院应当是( )A.甲县人民法院B.A地区中院的上一级法院C.A地区所属的乙县法院D。
A地区中级人民法院10、决定立案必须具备的条件之一是()A。
证据确实B。
认为有犯罪事实C.证据充分D。
罪行严重二、多项选择题:1、合议庭宣告判决的形式有()A.当庭宣判B。
定期宣判C。
邮寄宣判D。
公告宣判E.电话宣判2、辩护律师自人民法院受理案件之日起,对本案所指控的犯罪事实材料,可以()A.借走B。
查阅C。
复制D。
摘抄E。
补充3、人民法院对下列哪些案件采用独任制审判?()A、虐待案件B、遗弃案件C、抗税案件D、侮辱案件E、诽谤案件4、下列判决中,由人民法院作为执行机关执行的有()A。
英语小学四年级上册期末模拟试题测试题(及答案)(1)
一、选择填空1.—How many _____ do you have? ( )—_____. It’s green.A.pears; Three B.pears; Only one C.pear; One 2.—Here _____ some orange juice for you. ( )—Thank you.A.are B.is C.am3.—_______ crayons would you like? ( )—Seventeen, please.A.How many B.How much C.How long 4.—_______ are my white shoes? ( )—In the _______, beside the desk.A.What; kitchen B.Where; bedroom C.How; living room 5.—________ umbrellas do you have? ( )—I have one.A.How many B.How much C.What colour 6.I’m not hungry. I don’t want _________. ( )A.a pie B.a jacket C.a ball7.I’d like a hot dog. _________ you? ( )A.What are B.What about C.How are 8.This is my brother. He’s ________. His mouth is big. His hair is ________. ( ) A.short; short B.long; long C.tall; tall9.--- ______ is the cake? ---Ten yuan. ( )A.How many B.How much C.How old 10.______are black and white. ( )A.Pandas B.Elephants C.Horses1on’t eat in the _______. ( )A.snack bar B.kitchen C.library 12.This ______ our doll. Her hair ______long. ( )A.is, is B.are, are C.is, are 13.—__________? ( )—I'm hungry.A.Are you hungry B.How are you C.Who are you 14.—_____ you like _____ cakes? ( )—Yes, please.A.Would; any B.Do; any C.Would; some 15.His mouth and nose ________ big. ( )A.are B.is C.am二、用单词的适当形式填空16.—Look at me! I can jump very high.—Well _____ (do)!17.What colour are Jim’s toy lion’s ______ (eye)? 18.Let's ________ (swim) now.19.That girl can play football very __________. (good) 20.This is _________ (we) fruit salad.21.My sister can swim very ________ (good).2o you like _________ (mango)?23.How many _____ (mango) do you have?24._________ (that) socks are so big!25.—What's that behind the door?—It's _____ (a) umbrella. This is _____ (she) umbrella. 26.—What colour do you like?—I like _____ (brown).27.I like ________ (monkey) very much.28.We have two __________ (box).29.Where ________ (is) my shoes?30.—Look at these ______ (snowman).—How lovely!三、完成句子31.There are ______ (二十) cars.32.—Look! We can make fruit salads now, mum. —______ ______ (干得好).33.—How much are those ____ (袜子)?—Five yuan, please.3an you play _______?35.How much are the _______?36.We have e_____ stickers.37.These _____ are in the _____.38.I like this toy t_____. It can run.39.A: ___________ are my ___________?B: ___________ ___________ in your desk?A: No, they ___________.B: Look! They are ___________ the door.A: Thank you.40.—还要其他东西吗?—两个苹果派和一份水果色拉。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
VB期末模拟试题1一、单项选择题(每题2分,共30分)1.在设计应用程序时,可以查看到应用程序工程中所有组成部分的窗口是()。
A、窗体设计器B、代码编辑器窗口C、属性窗口D、工程资源管理器窗口2.窗体的Load事件的触发时机是()A、用户单击窗体时B、窗体被加载时C、窗体显示之后D、窗体被卸载时3.与传统的程序设计语言相比,Visual Basic最突出的特点是()A、结构化程序设计B、程序开发环境C、事件驱动编程机制D、程序调试技术4.无论何种控件,共同具有的属性是()。
A.Text属性B.Caption属性C.Name属性D.Autosize属性5.如果对象的名称为Mytext,而且对象有一个属性Text,那么在代码中引用该属性的正确格式是()A、Text.MytextB、Mytext.TextC、Mytext.(Text)D、Mytext*Text6.按照变量的作用域可将变量划分为()A、公有、私有、系统B、全局变量、模块级变量、过程级变量C、动态、常数、静态D、Public、Private、Protected7.可获得字符的ASCII码的函数是()。
A、ValB、FixC、AscD、Chr8.要退出Do…Loop循环,可使用的语句是()。
A、ExitB、Exit ForC、End DoD、Exit Do9.把数值型转换为字符串型需要使用的函数是()。
A、ValB、StrC、AscD、Chr10.关于语句行,下列说法正确的是()。
A、一行只能写一条语句B、一条语句可以分多行书写C、每行的首字符必须大写D、长度不能超过255个字符11.设置对象的边框类型的属性是()A、DrawstyleB、BorderstyleC、DrawWidthD、ScaleMode12.为了清除图片框Picture1中的图形,应采取的正确方法是()A、选择图片框,然后按Del键B、执行语句Picture1.Picture = LoadPicture("")C、执行语句Picture1.Picture = ""D、选择图片框,在属性窗口中选择Picture属性条,然后按回车键13.要绘制不同形状的图形,需要设置Shape控件的()属性A、ShapeB、BorderstyleC、FillStyleD、Style14.要绘制多种式样的直线,需要设置Line控件的()属性A、ShapeB、BorderstyleC、FillStyleD、Style15.如果准备读文件,打开顺序文件”text.dat”的正确语句是()A、open "text.dat" For wrire As # 1B、open "text.dat" For Binary As # 1C、open "text.dat" For Input As # 1D、open "text.dat" For Random As # 1二、填空题(每题2分,共20分)1.Winsock控件主要用来编制或UDP协议的通讯程序。
2.若窗体的左上角坐标为(-200,250),右下角坐标为(300,-150),则X轴的正向向右,Y轴的正向向。
3.图像框对象的Stretch属性设置为时,图像框可自动改变大小以适应其中的图形。
4.用Dim A(5,5)语句声明二维数组后,数组A的元素共有个。
5.设CurrentX=50,CurrentY=100,执行指令“Line(100,20)-Step(300,500)”后,CurrentY = 。
6.使用Hide方法会隐藏被调用的窗体,但是在调用Hide方法之后不会把窗体移出内存,被调用的窗体中的属性等已处于。
7.将下列数学式子写成Visual Basic运算表达式。
sss---:。
a)())((csb8.将1≤ x <12写成Visual Basic逻辑表达式。
9.设A=2,B=3,C=4,D=5。
表达式Not A<=C Or 4*C = B^2 And B<>A+C的值为。
10.VB中的程序错误类型主要有编译错误、等三种。
三、阅读程序题(共25分)阅读下列程序并写出程序运行结果1.Private Sub Form_Click()Static Sum As IntegerFor I = 1 To 2Sum = Sum + INext IPrint SumEnd Sub点击窗体两次后,变量Sum的值是:2.Private Sub Form_Click()Dim a,c As IntegerFor a=1 To 5c=a+1Print cNext aEnd Sub变量C的结果依次为:3.Private Sub Command1_Click()Dim A(1 To 5) As IntegerDim b As IntegerFor b = 1 To 5A(b)=bNext bText1.Text=A(b-2)End Sub文本框Text1的结果是:4.Private Sub Command1_Click()Text1.Text=2Text2.Text=3Text3.Text=Text1.Text+Text2.TextText4.Text=Val(Text1.Text)+Val(Text2.Text)End Sub文件框Text3和Text4的结果分别是:四、完善程序题(共10分)1.已知SQL Server数据库管理系统中存在名称为“学生”的数据库,其中的“students”数据表的结构及初始记录如表1所示。
要求使用ADO对象和MSFlexGrid控件设计数据库列表显示程序。
程序的设计界面和运行结果如图1、图2所示。
图1图2程序如下,请补充完整。
'声明对象变量ADOcn,用于创建与数据库的连接Private ADOcn As Connection'ReadFromTable过程Private Sub ReadFromTable()Dim strtmp As StringDim ADOrs As [1]ADOrs.ActiveConnection = ADOcnADOrs.Open [2]MSFlexGrid1.ClearMSFlexGrid1.Rows = 0MSFlexGrid1.Cols = 3strtmp = "学号" + vbTab + "姓名" + vbTab + "专业"MSFlexGrid1.AddItem strtmpDo While Not ADOrs.EOFstrtmp = ADOrs("学号") + vbTab + ADOrs("姓名") + vbTab + ADOrs("专业")MSFlexGrid1.AddItem strtmp[ 3]LoopMSFlexGrid1.FixedCols = 0MSFlexGrid1.FixedRows = 1End SubPrivate Sub Form_Load()'定义数据库连接字符串Dim strDB As String'用于连接SQL Server数据库,其中:'Server为服务器名称'User ID为登录账号'Password为登录口令'Database为具体的数据库名strDB = "Provider=SQLOLEDB;LSF;User ID=sa;Password=;Database =学生"'如果还没有建立与数据库的连接,则用以下代码创建。
If ADOcn Is Nothing ThenSet ADOcn = [4]ADOcn.Open [ 5] '连接SQL Server数据库End IfReadFromTable '调用过程显示students表中的记录End SubPrivate Sub Command1_Click()Unload MeEnd Sub五、编写程序题(共15分)请根据下列描述编写购物优惠程序。
某商场为了加速促成商品流通,采用购物打折的优惠办法,每位顾客一次购物(1)在100元以上者,按九五折优惠;(2)在200元以上者,按九折优惠;(3)300元以上者,按八折优惠;(4)500元以上者按七折优惠。
在窗体上添加两个文本框和一个命令按钮,要求在Text1中输入购物商品总金额,单击命令按钮,在Text2中输出优惠价。
程序运行结果如图1所示。
图1模拟试题1参考答案一、单项选择题(共30分)1.D 2.B 3.C 4.C 5.B 6.B 7.C 8.D9.B 10.B 11.B 12.B 13.A 14.B 15.C二、填空题(共20分)1.TCP/IP(或者回答TCP协议)2.上3.False4.365.5206.无效状态7.Sqr(s*(s-a)*(s-b)*(s-c))8.x>=1 And x<129.False10.实时错误逻辑错误三、阅读程序题(共25分)1.程序运行后,单击窗体两次后,Sum的值是:6。
2.程序运行后,单击窗体,输出结果为:2、3、4、5、63.程序运行后,单击Command1按钮,文件框对象Text1的结果为:44.程序运行后,单击Command1按钮,文件框对象Text3、Text4的结果分别为23、5四、完善程序题(共10分)(1)New Recordset;(2)"select * from students order by 学号";(3)ADOrs.MoveNext;(4)New Connection;(5)strDB;五、编写程序题(共15分)Private Sub Command1_Click()Dim x As Single, y As Singlex = Val(Text1.Text)If x < 100 Theny = xElseIf x < 200 Theny = 9.5 * xElseIf x < 300 Theny = 0.9 * xElseIf x < 500 Theny = 0.8 * xElsey = 0.7 * xEnd IfEnd IfEnd IfEnd IfText2.Text = y End Sub。