答案错题测试 (1)

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七年级上册地理复习(四)错题训练试题及答案

七年级上册地理复习(四)错题训练试题及答案

七年级上册地理复习(四)错题训练试题及答案1、东经度的经度范围是() [单选题] *A. 0°经线以东到180°经线以西(正确答案)B、20°W以东到160°EC、0°经线以西到180°经线以东D、20°W以西到160°E2、纬度是25°,经度是160°的地点在地球上有几个() [单选题] *A、1个B、2个C、3个D、4个(正确答案)3、北京的区时是3日3点时,伦敦的区时是() [单选题] *A.3日11点B.2日19点(正确答案)C.3日19点D.2日20点4、一年中,小明连续过了两个生日,正确方式是() [单选题] *A.由东半球进入西半球B.由西半球进入东半球C.由东十二区向东进入西十二区(正确答案)D.由西十二区向西进入东十二区5、“神舟七号”飞船与北京时间(东八区)2008年9月25日9时在甘肃酒泉卫星发射基地发射升空,此时美国纽约(西五区)的时间是() [单选题] *A、 9月25日20时B 、 9月24日20时(正确答案)C、 9月25日22时D 、9月26日20时6、当北半球昼长夜短时,太阳直射点一定在() [单选题] *A、北半球(正确答案)B、东半球C、西半球D、赤道7.地球上太阳直射的最北和最南的界线分别是() [单选题] *A.66.5°N和66.5°SB.都是0°C.23.5°N和23.5°S(正确答案)D.30°N和30°S8、5月1日这一天,太阳直射点的位置应是() [单选题] *A.在北半球,并向南移动B.在北半球,并向北移动(正确答案)C.在南半球,并向北移动D.在南半球,并向南移动9、当地球昼夜情况如右图所示时,下列说法正确的是()[单选题] *A.非洲北部草原茂盛B.地中海沿岸温和湿润(正确答案)C.德州市昼长夜短D.德州市正午物体影长达到一年中最短10.关于经、纬线的说法正确的是() [单选题] *A.沿任何一条经线北行,均能回到原地B.通过地球表面任何一点都只有一条经线C.全球所有的经线都不等长D.除赤道和极点以外,相同纬度的纬线都有两条(正确答案)11、某点以东是西半球,以西是东半球;以北是北半球,以南是南半球,这点的地理坐标是() [单选题] *A.0°、160°E(正确答案)B.23.5°S、20°WC.66.5°N、160°ED.0°、20°W12. 若同学们在观测过程中发现旗子向东南方向飘扬,感觉风力较大,推测为四级风,则正确表示该风的符号为() [单选题] *A.B.C.(正确答案)D.13、有一位建筑师,要建造一座房子,使房子四面的窗户都朝北,你认为该建在() [单选题] *A、北极点B、赤道和0°经线的交叉点上C、南极点(正确答案)D、赤道和180°经线的交叉点上14. 有关图中①②③④阴影部分的描述,正确的是()[单选题] *A.①区域是世界最大的热带草原气候分布区(正确答案)B.②区域内工农业发展迅速,经济发达C.③区域以温带海洋性气候为主D.④区域降水丰富,河流众多15、甲、乙两人从赤道出发,甲向北行,乙向东行,如果两人前进的方向保持不变,那么() [单选题] *A、两人都能回到原出发地点B、两人都不能回到原出发地点C、只有甲能回到原出发地点D、只有乙能回到原出发地点(正确答案)16、下列现象自转产生的是() [单选题] *A.昼夜现象B.昼夜长短变化C.四季变化D.太阳东升西落(正确答案)17.下列纬线,一年内有两次阳光直射的是() [单选题] *A.23.5°NB.23.5°SC.30°SD.5°N(正确答案)18、地球公转产生的现象是:()①四季变化②正午太阳高度的变化③昼夜长短变化④正午影子长度的变化。

人力资源管理期末综合练习题及参考答案 (1)

人力资源管理期末综合练习题及参考答案 (1)

《人力资源管理》(专)期末综合练习题及参考答案一、判断对错题(每小题1分)1.我国超过法定退休年龄的人不属于现实的人力资源。

( ×)2.我国实施人才强国战略,就要强化人才资源的市场化配置,从而提高人才资源的利用效率,努力营造"尊重劳动、尊重知识、尊重人才、尊重创造"的社会氛围。

(√)3.人力资源规划的作用之一就是通过引进技术人才可以促使企业生产技术和其他工作流程变革,从而提高竞争优势。

( √)4.人力资本关注的是收益问题,人力资源关注的是价值问题。

(√)5.我们可以用工作活动流程图的形式来揭示工作任务的操作要素与流向。

( √)6.影响企事业组织招聘的内部因素有很多,其中企事业组织的性质是首要因素。

( ×)7.培训需求分析在三个层次上进行,即:员工层次、企业层次、战略层次。

( √)8.在现代人力资源管理中,员工的知识水平和技能已不再是影响工作绩效的唯一重要因素,员工的态度、观念对企业生产力及企业效益的影响日益加强。

( √)9.技能工资制适用于生产专业化、自动化程度较高的生产流水作业,以及分工细、同一岗位技能要求差别不大的企业和工种。

( ×)10.员工可以通过组织目标的实现达成自己的职业发展目标。

( √)11.失业保险的目标是给予失去工作的员工以补贴,不论其失去工作是自愿的还是非自愿的。

( ×)12.人是生产力中最重要的因素,而劳动关系是生产关系中的重要因素之一。

( √)23.人力资源是一定范围内的人口总体,它涵盖了城市和农村的所有人口。

( √)24.围绕西部开发、振兴东北老工业基地、中部崛起等国家的战略部署和重点任务,我们应大力开发自然资源,并以此促进人类社会的长远发展。

( X )25.为了评估规划的有效性,规划人员有必要首先确定评估标准。

( √)26.人力资源成本会计既要研究如何计量在获得和开发人力资源方面组织的投资,又要研究如何计量目前录用人员的重置成本。

高中数学错题宝典阶段测试同步训练试题540

高中数学错题宝典阶段测试同步训练试题540

高中数学错题宝典阶段测试同步训练试题2019.091,对任意正整数n, n n a n λ+=2满足数列是递增数列,则λ的取值范围是 。

2,数列{}n a 的前n 项之和为nn S n322+=,若将此数列按如下规律编组:(1a )、(2a ,3a )、(4a ,5a ,6a )、……,则第n 组的n 个数之和为 。

3,若a n =1+2+3+…+n ,则数列⎭⎬⎫⎩⎨⎧n a 1的前n 项之和n S = 。

4,若数列}{n a 为等差数列且n a a a b nn +⋅⋅⋅++=21,则数列{}也是等差数列n b ,类比上述性质,相应地若数列{}n n c c 是等比数列,且>0,=n d ,则有{})也是等比数列(以上N n d n ∈5,已知函数f(x) = ,则函数()f x 的单调区间是_____ 6,函数y = 的单调递增区间是________7,已知集合A={x x 2+(p+2)x+1=0, p ∈R },若A ∩R +=φ。

则实数P 的取值范围为 。

8,已知a 1 = 1,a n = a n -1 + 2n -1(n ≥2),则a n = ________9,函数y=63422-+++x x x x 的值域是________。

10,已知A = ,若A ∩R * = F ,则实数t 集合T = ___。

11,若)2,1(),7,5(-=-=b a ,且(b aλ+)b ⊥,则实数λ的值为____________.12,设实数a,b,x,y 满足a 2+b 2=1,x 2+y 2=3, 则ax+by 的取值范围为_______________.13,-4<k <o 是函数y=kx 2-kx -1恒为负值的___________条件14,函数y=4522++x x 的最小值为_______________15,已知a,b R ∈,且满足a+3b=1,则ab 的最大值为___________________.16,已知直线l 与点A (3,3)和B (5,2)的距离相等,且过二直线1l :3x -y -1=0和2l :x+y -3=0的交点,则直线l 的方程为_______________________17,有一批钢管长度为4米,要截成50厘米和60厘米两种毛坯,且按这两种毛坯数量比大于31配套,怎样截最合理?________________-18,已知直线x=a 和圆(x -1)2+y 2=4相切,那么实数a 的值为_______________19,已知圆(x -3)2+y 2=4和直线y=mx 的交点分别为P ,Q 两点,O 为坐标原点,则OQ OP ⋅的值为 。

七年级英语下学期期末错题集(含答案)

七年级英语下学期期末错题集(含答案)

新人教版初一下学期期末错题集1.When the girl saw a big dog,she shouted ______ her father ______ help.A.at;withB.to ;forC.at;forD.to;with2.I saw Jim _______ near the river on my way home.A.playsB.playingC.to playD.played3.I can’t speak Russian very well.It’s _______ difficult for me.A.a kind ofB.a littleC.a little ofD.kinds of4.Each of them _______ some fruit for free.A.getB.getsC.gettingD.to get5.Lucy is _______ girl.A.a quite beautifulB.quite a beautifulC.quite beautiful aD.beautiful quite a6.Mike, I feel something _______ on my head.—Well ,let me have a look.A.to be movedB.movedC.movingD.to move7.What______ he ______like?—He’s thin and tall.A.is;lookB.does;looksC.does;lookD.is;looks8.Some chicken______in the bowl,and some______ are in the garden.A.is;chickenB.are;chickenC.is;chickensD.are;chickens 9._______interesting job this is!A.WhatB.HowC.What anD.How an10.I saw her_______ just now.A.to playB.playingC.playsD.play11.I told the visitors______them and their ______habits.A.to;lifeB.about;livingC.of;lifeD.to;living12.I was so scared that I couldn’t move.(同义句)I was _____ scared ______ move.13.The man _____ thick glasses is my teacher.A.byB.onC.withD.in14.It’s time to get up!Please ask them to stop_______.A.to sleepB.sleepingC.sleepsD.sleep15.I’d like to drink_________.A.some orangesB.orangesC.some orangeD.orange juices16.These _______(music) all come from Australia.17.There is a beautiful garden _____Fifth Street.A.onB.inC.withD.at18.Just ______straight and turn right.A.goingB.goC. to goD.goes19.—Mike ,______play with your eraser in class.—I’m sorry.A.don’tB.doesn’tC.can’tD.not20.There are a lot of small gardens in our community.(同义句)There are _______ _______ small gardens in our community.21.She is talking with friends _____ wechat.A.forB.inC.onD.at22.Please _____ quiet! The students _______ reading books.A.is;areB.be; areC.is;beD.be;be23.—Hello, may I speak to Mary ,please?— _______.A.I don’t think soB.I am MaryC.Hurry up,pleaseD.This is Mary speaking24.—Can I have ______ tea?—Sorry, there isn’t ______.A.some;anyB.an;someC.any;someD.a;some25.Some students are doing their homework,_______ are talking.A.othersB.the othersC.otherD.the other 26.She is over 40 years old.(同义句)She is _____ _____ 40 years old.27.He is from China.(同义句)He _____ ______ China.28.It take s me 2 hours ______ (finish)my homework.29.You must do the dishes after ______(eat)dinner.30.Don’t ______(talk) in class.31.He often practices_______(play) the piano.32.Can you ______ English?—No, I can ______it in Chinese.A.speak;speakB.speak;sayC.say;sayD.talk;say33.Ice-creams ______ good, so all the children like ______.A.tastes;itB.taste;themC.tastes;themD.taste;it34.He b______ his teeth every day.35.She likes ________(锻炼)after dinner.36.The children went to the mountains _______ Friday afternoon.A.atB.forC.onD.in37.My grandparents like living in the c________(乡村).38.On my birthday I got lots of_______(礼物) from my friends.39.These b______(幼小的) pandas can’t eat much.40.I have much work to do.I’m ________ busy.A.a bit ofB.a littleC.a lotD.a few41.I had a good time in Beihai Park last Sunday.(同义句)I ________ ________ in Beihai Park last night.42.When he saw the tiger for the first time,he got a ________.A.surprisedB.surprisingC.surpriseD.surprises43.We need you _______ help______ our school trip.A./;forB.to;forC./;withD.to;with45.I go to ______ work after _______ breakfast everyday.A./;theB./;/C.the;aD.the;the46.Our teacher shows_________?A.me itB.me to a mapC.a map to meD.a map me47.Your brother is good _______ telling stories, so he can be good ______ children?A.for;withB.at;withC.to;atD.at;for48.What _______ you ________ when it is rainy?A.are;do B.is;do C.do;do D.does;do49.-May I use your telephone?-Sorry.It ________.A.isn’t worksB.worksC.doesn’t workD.isn’t work50.What a nice _______ it is!I want to go out for a walk.A.weatherB.photoC.dayD.today51.They are playing games;they are very ________(relax).52.I don’t know Bill,_______ I can’t tell you anything about him.A.becauseB.butC.soD.or53.I can help you with _______(sing).54.-Who visited the farm last Sunday?-_________.A.The boy visitedB.He doesC.His father wasD.He did55.The driver is sitting ______ the car.A.in front ofB.in the frontC.in frontD.in the front of56.Alice spends too much time ________ computer games.A.playB.playsC.to playD.playing57.Mike is a student from _______,and he studies very_______.A.Russian;wellB.Russia;goodC.Russia;hardD.Russian;hard58.He sees a boy _______baseball with his friends now.A.playB.to playC.playingD. plays59.-Who is in your classroom now?-________.All the students are on the playground.A.SomebodyB.AnybodyC.NobodyD.Everybody60.Do you think everyone ________ their weekends?A.enjoysB.enjoyC.enjoyingD.to enjoy61.She’s just 25,but she has _______ white hairs.A.a fewB.muchC.lot ofD.a little62.Look at the ______!It’s ________ heavily now.A.rain;rainB.raining;rainingC.raining;rainyD.rain;raining63.My phone isn’t________(work).64.Little Tom can draw ________.His drawings are very ________.A.good,wellB.well,goodC.good,goodD.well,well65.---- ________ do you join the club?----BecauseI like music.A.WhatB.WhereC.WhyD.How 66.We have lots of fun ________ games.A.playB.to playC.playingD.plays67.The train ________ the train station at 8:40 every morning.A.crossesB.runsC.leaveses68.For some students ,it’s difficult________school.A.to get toB.get toC.to getD.get69.----Is she your sister?----________.she is my aunt.A.Yes,she isn’t.B.No,she is.C.Yes,she is.D. No,she isn’t.70.----Do you like ________ ?----Yes,they’re very smart.A.elephantB.tigerC.pandasD.animal71.My little cat sleeps ________the day,but ________ night he begins to work. A.at,at B.on,in C.on,at D.during,at72.Wait a minute.I have _____ to tell you.A.important somethingB.something importantC.nothing interestingD.anything new73.-Where _____ you last week?-I _____ in Xi’an.A.are ;amB.was;wasC.were;wasD.were;were74.Nick ____ to work on Sundays.He plays sports with his friends.A.goB.goesC.don’tD.doesn’t go75.-___ does Gina _____ her English teacher?-She likes her very much.A.How ;thinkB.What;likeC.How;think ofD.What ;think of76.The train station is not far ______ my home.A.toB.fromC.andD.with77.Sally _____ her mother.A.likeB.is likesC.likingD.is like78.Don’t eat in class _____ don’t fight in school.A.orB.butC.andD.so79.He often goes to work ____ his car.A.byB.inC.atD.with80.John is _____.He is _______ boy.A.8 years old;a 8-year-oldB. 8 years old; an 8-year-oldC. 8 years old; an 8 years oldD. 8-year-old; an 8-year-old81.-How far is your teacher’s home from here?-It’s about two _____ drive.A.hour’sB.hoursC.hours’D.hour82.The teacher is very stric _____ his students.A.withB.inC.forD.to83.You must learn ______.A.relaxB.relaxsC.to relaxD.relaxing84.There are ____ of students in our school but only _____ of them are girls.A.hundreds;two hundredB. hundred; two hundredC. hundreds;two hundredsD. hundred; two hundred85.The post office is near here. You can go there ____ foot.You don’t need to go there ___ bike.A.on;byB.on;onC.by;rideD.on;by86.-_____?-Yes,it is.A.Do you like this movieB.Is your sister at homeC.Is that your uncleD.Does your cousin reading.参考答案:1-5BBBBB 6-10CCCCB 11B 12too;to 13-15CBC 16musicians 17-19ABA 20 lots of 21-25CBDAB 26more than 27comes from 28to finish 29eating 30talk 31playing 32-33BB 34brushes 35 exercising 36 C 37countriside 38gifts 39 baby 40B 41enjoyed myself /had fun 42-47CBBAB 48-50CCC 51relaxed 52C 53 singing 54-58 DDDCC 59-62CAAD 63working 64B 65C 66-70CCADC 71-75DBCDD 76-80BDCBB 81-86CACAAC。

语法错题

语法错题

PART ONE 语法错题3. Typical of the grassland dwellers of the continent __________, or pronghorn.(A) it is the American antelope(B) the American antelope is(C) is the American antelope(D) the American antelope答案:C测试点:倒装句。

分析:Typical of放在句首的句子,要用倒装句。

Typical of…短语是表语,应在答案中选择“系动词+主语”的结构,即(C)。

解题要点:遇倒装句在4个答案中寻找以系动词 (be)开始的结构。

16. Not woman held a presidential cabinet position in the United States until 1933, whenFrances Perkins became secretary of labor.答案:A测试点:否定词。

分析:no,not以及none这三个否定词的用法,常在题中故意混淆。

副词not不能修饰名词woman,此外应用形容词no。

解题要点:no或not出现在TOEFL改错题中,应首先考虑其是否正确。

21. Barges which carrier most of the heavy freight on rivers and canals are usually propelledby towing.答案:A测试点:词性。

分析:carrier是名词,而此处需要谓语动词。

应为carries。

解题要点:名词后缀-er,-or,-tion,-sion等形式出现在TOEFL改错题中,应引起特别注意。

24. It is more difficult to write simply, directly, and effective than to employ flowery but vague expressions that only obscure one’s meaning.答案:B测试点:并列结构/词性。

九年级科学(上)考试错题选

九年级科学(上)考试错题选

九年级科学(上)考试错题选1、下列各组物质属于同一类别(指酸、碱、盐、氧化物)的是 ( ) A 、生石灰、熟石灰、石灰石 B 、烧碱、纯碱、苛性钠 C 、食盐、纯碱、胆矾 D 、干冰、冰、冰醋酸2、下列有关生活常识的说法中,正确的是 ( ) A 、发现家里煤气泄漏时,立即打开排气扇 B 、用工业酒精兑制白酒C 、用食醋除去水壶中的水垢D 、用铁桶配制农药波尔多药3、某工厂排出的废水显酸性,且含有毒的Cu 2+ 离子,加入适量的下列物质可以回收铜,且能降低溶液酸性的物质是 ( )A 、食盐B 、铁粉C 、石灰石D 、胆矾4、实验表明:用碱性溶液浸泡新鲜的蔬菜,能有效除去蔬菜上的残留农药,从而降低对人体的损害。

根据上述原理,对刚买回来的蔬菜,你认为应浸泡在哪种溶液中 ( ) A 、食盐 B 、食醋 C 、烧碱溶液 D 、碳酸钠溶液5、向稀NaOH 溶液中慢慢滴加稀盐酸至恰好完全反应,溶液的pH 变化图象是下列图中的( )A B C D6、如图甲下图甲为某大桥效果图,其主通航孔桥采用双塔双索面斜拉桥方案,如将大桥的结构进行简化,可以抽象成下图丁所示的模型。

为了减小钢索承受的拉力,在需要与可能的前提下 ( ) A 、对桥塔的高度适当增加 B 、对桥塔的高度适当减小 C 、无法通过改变桥塔高度来改变拉力 D 、大桥运用了斜面的科学知识7、2004年12月底,印度洋海底发生强烈地震,引发的海啸破坏性极强,造成几十万人死亡和无数财产损失,海啸之所以有这样大的破坏性,是因为海啸具有很大的 ( ) A 、重力势能 B 、内能 C 、机械能 D 、弹性势能8、班里组织一次比赛活动,从一楼登上三楼,看谁的功率最大。

为此,需要测量一些物理量,下列物理量中必须测量的是 ( )①三楼地面到一楼地面的高度 ②从一楼到达三楼所用的时间 ③每个同学的质量或体重 ④一楼到三楼楼梯的长度 A 、②④ B 、①④ C 、①②③ D 、②③9、实验室里有二瓶浓盐酸和浓硫酸,因时间长标签已被腐蚀,不用其它试剂,你如何用最简单的方法把它们鉴别出来?______________________________________________________________________.10. 天然气的主要成分是_____________,它属于________________(填有机物或无机物),它在空气中完全燃烧的化学方程式是 ______________________________________.11. 有一包白色粉末,可能由硫酸钡, 碳酸钾, 氯化钡, 硫酸钾中的某几种组成. 为了鉴别其成分, 实验如下: (1)将少量粉末放入足量的水中, 搅拌, 静置, 过滤, 得到白色沉淀和无色溶液. (2) 向所得的沉淀中加入足量稀硝酸, 沉淀全部溶解, 且有气体产生. 则该白色粉末中一定含有_________________, 一定没有______________________.12. 今有碳酸钠溶液, Fe ,稀硫酸,氯化钡溶液等4种物质, 其中_________________能和其它三种都发生反应.13. 请计算判断: 73克10%的盐酸和73克10%的氢氧化钠溶液反应后, 滴入石蕊试液, 溶液显示的是什么颜色?14. 九(十)班某同学为测定某儿童咀嚼片中碳酸钙的含量标注是否属实,他取出4片片剂,研碎后放入烧杯中,逐滴加入稀盐酸,至不再放出气体为止,共用去稀盐酸40.0 g ,称量烧杯中剩余物质量为47.8 g (不含烧杯质量, 假定钙片其它成分不与盐酸反应 )。

错题宝典高考复习易错题分类易错题示例250

错题宝典高考复习易错题分类易错题示例 测试题2019.91,若2sin 2αβααβ222sin sin ,sin 3sin +=+则的取值范围是______________2,已知函数f (x) =2cos(324+x k )-5的最小正周期不大于2,则正整数k 的最小值是___________3,已知集合A={x x 2+(p+2)x+1=0, p ∈R },若A ∩R +=φ。

则实数P 的取值范围为 。

4,已知(2x x a -)9的开展式中x 3的系数为49,则常数a 为 。

5,垂直于直线2x -6y +1=0且与曲线y = x 3+3x -5相切的直线方程是 。

6,若f ( x ) = ax 3+bx 2+cx +d (a>0)为增函数,则a 、b 、c 的关系式为(等式或不等式(组))是 .7,设f ( x ) = x 3-21x 2-2x +5,当]2,1[-∈x 时,f ( x ) < m 恒成立,则实数m 的取值范围为 .8,函数y = f ( x ) = x 3+ax 2+bx +a 2,在x = 1时,有极值10,则a = ,b = 。

9,如果c 是(1+x )5的展开式中x 3的系数而在总体中抽出一个样本:2,3,4,6,7,S 2表示该样本的方差,S 2c 表示51[(2-c)2+(3-c)2+(4-c)2+(6-c)2+(7-c)2],则S 2与S 2c的大小关系为10,为了了解某地参加计算机水平测试的5008名学生的成绩,从中抽取了200名学生的成绩进行统计分析。

运用系统抽样方法抽取样本时,每组的容量为 。

测试题答案1, [0 , 45]{}2⋃2, 133, P ∈(-4,+∞)4, 45, 3x +y +5 = 06, b 2 < 3ac 且a > 07, m > 78, a = 4 b = -119, S 2 < S 2c10, 25。

高二数学期末错题集测试卷

高二数学期末错题集测试卷一、选择题(每题3分,共30分)1. 若函数f(x) = x² - 2x + 1在区间(0, +∞)上是增函数,则实数a 的取值范围是:A. a ≤ 1B. a ≥ 1C. a ≤ 2D. a ≥ 22. 已知函数f(x) = |x - 2| - |x + 1|,则f(x)的零点个数为:A. 0B. 1C. 2D. 33. 在三角形ABC中,a = 4, b = 5, sinA = 3/5,则cosB的值为:A. 4/5B. 3/5C. 1/2D. 1/54. 若函数g(x) = x² - 2x + c在x = 1处取得极小值,则常数c的值为:A. 0B. 1C. -1D. 25. 已知函数h(x) = log₂(x² - 2x + 1),则h(x)的定义域为:A. x > 1B. x < 1C. x ≠ 1D. x ∈ R二、填空题(每题3分,共30分)6. 已知函数f(x) = x² - 2x + 3,求f(x)的顶点坐标。

7. 在直角坐标系xOy中,点P(2, -3)关于y轴的对称点Q的坐标是______。

8. 已知数列{an}是等差数列,a₁ = 1,a₃ = 3,求该数列的公差d。

9. 若函数y = x² - 2x + 1的图像与x轴交于点A,B,求线段AB的中点坐标。

10. 若sinθ = 1/2,且θ在第二象限,求cosθ的值。

三、解答题(每题20分,共100分)11. 解方程组:```2x + y = 5x - 3y = 2```12. 已知函数f(x) = x³ - 3x² + 4,求f(x)的单调区间。

13. 设数列{an}的前n项和为Sn,已知an = 1/2^n,求Sn的表达式。

14. 在三角形ABC中,BC = 6,AC = 8,∠A = 30°,求三角形ABC的面积。

牛津译林版九年级上册第一单元错题重练(有答案)

9A Unit 1 错题重练1. The book by the famous writer ______well,I'm sure it _______out soon.A. sells;sellB. sell;will sellC. sell;will be soldD. sells;will be sold2. Since he______about the news,you needn't tell him again.A. knewB. knowsC. has knownD. will know3. ——When shall we meet again next week?——_____day is OK. There's no problem with me.A. EitherB. NeitherC. AllD. Any4. ——Guangzhou Airport,please!I have to be there before 3:00 p. m. ——_________,but I'll do my best.A. I can't make sure of anything.B. Don't be worried.C. We still have much time left.D. Sorry,I can't.5. _________(catch)the early bus,I got up very early this morning.6. I don't think you need a guide since each of you__________(know)the place of interest very well.7. Father phoned to tell us to start dinner without_________(wait)for him.8. 对学生来说整天不停歇的学习是件可怕的事。

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1. S____________ like you are having a good time. sounds 2. They are doing some ___________________(clean). cleaning 3. In winter, the weather is very cold and people are _____________ ________________.(穿着毛衣)wearing sweaters 4. ___________ you __________ a good time in the zoo?(正在动物园玩得开心吗?)Are having 5. 天气如何?___________ is the weather?= ___________ is the weather ___________?How, what like 6. There is much rain this year.= It _______ very ________ this year. Is, rainy 7. Tom is ____________(study) math now. studying 8. Lucy ______(study) Chinese every day. studies 9. It is very cold outside because it is ___________(下雪) now. snowing 10. How is it going with you?--- Not __________(好的). good 11. Mom often tells me ____________(eat) healthy food. To eat 12. 我们自己做晚饭怎么样?___________ ____________ _____________ dinner by ourselves. How about cooking 13. How is the weather in Hangzhou?--- _____________ _____________(正下雨) now. It’s raining 14. I always ________(wash) my clothes in the evening, and now I ___________(wash) a T-shirt. Wash, am washing 15. Do you like ___________(snow) weather? ---Yes, I like it very much. I like ___________(snow). Snowy, snow 16. Could you tell my father ________________(call) me when he comes back? To call 17. Some people are relaxing under the sunshine. And they _____________(talk) and laughing. Are talking 18. It will be _____________(sun) in Paris tomorrow. sunny 19. I’m busy today. Can I go to see you t____________? tomorrow 20. The books are all boring. I don’t like a_______ of them. any 21. Who is your favorite m______________ star?---Zhou Xun. movie 22. My grandfather _____________ ______________ _____________(看报纸) every morning. reads a newspaper 23. Mary likes beautiful clothes like _____________ ____________(其他任何一个) girl. Any other 24. Mary isn’t ____________(in on at away).She is swimming in the lake with her friends. in 25. They don’t like hot weather ________they can do something to keep it away. (and because but so) but 26. I have two brothers. One is a teacher, and _____________ is a doctor. The other 27. Who is cooking?---- Linda __________. is 28. All the students are working. Some are cleaning the chair, and __________are cleaning the desks. The others 29. ___________ are you walking with? who 30. Xiao Ming, you are wanted ___________ the phone. on 31. Miss Li wants __________(eat) some rice and two eggs. To eat 32. I __________ ___________( 希望)visit Paris one day. Wish to 33. I’m _______(只是) playing with my little dog. just 34. Mom, I want ot eat ________(外面) with my friends on Sunday evening, OK? out 35. Jack _______ his homework every day. ---(否定) Jack _______ ______ his homework every day. Does, doesn’t do 36. It is 8:00 now. The students _________ _________ _________ ___________ __________( 正在上英语课) are having an English class 37. They must find __________ ___________ water and food(有水和食物的地方). Places with 38. Where _____lions ________?= Where _________ lions __________ ___________? Are from, do come from 39. What _______ (其他的)animals do you like? other 40. Mr. Li is kind ________ us. But sometimes he is kind ____________ serious(严肃). To, of 41. __________ he is very lazy, __________he sleeps in the day. (填上合适的关联词). /, because 42. Please remember __________(关) the lights when you leave the classroom. To close 43. One of my _______________(同学) comes from Africa. classmates 44. Let him ____________(go) to the park with me. go 45. They _________ ________(砍掉) the forest to make room for the new road. Cut down 46. Pandas are usually very heavy, but they can climb trees like __________(其他) animals. other 47. Let’s see tigers first.( 同义句) ________ ________ seeing tigers first? How about 48. Her favorite _____________(动物) are monkeys(猴子). animals 49. Is Mike often late for class? ( 同义句) ---_______ Mike often ___________ late for class? Does, arrive 50. You can borrow books from the library, but you can’t lend them to ______________(其他人). others 51. If the library books are ________(丢了), you have to pay for them. lost 52. We can’t __________(听) music in the classroom. Listen to 53. Please keep the door_____________(开着)/ ___________(关着) open, closed 54. ________I take e some photos in the hall?---No, you __________. Can/May, can’t 55. Our teacher is strict _________ us __________everything. With, in

56. She is not eating _________(桔子). She is drinking _________(橙汁). An orange, orange 57. It’s a fine day. There are many boys _________(游泳) in the river. Swimming 58. She is in Canada ______ vacation now. on 59. _______ fine weather! Let’s go out for a walk. What 60. There are many people in the park. Some are walking along the lake. ________ are sitting on the grass. Others 61. In Harbin, there ________(有很多) snow every year. is much 62. It is not very usual for the same kind of weather to ______(持续) long. Stay/last 63. In fact, there ______(可以有) as much sunshine in spring as in summer. Can be 64. Autumn is a beautiful season with trees in the woods and parks ______( change) colors. Changing 65. The difference in temperature _____ winter and summer is not so great in Britain. Between 66. It often _________(下雪) in this city in winter. snows 67. He is now studying in the US, so he ________(想念) his family very much. misses 68. One of my favorite c________ is France. countries

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