必修一第二单元练习

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高一英语必修一第二单元课文知识点练习题

课后强化演练Unit 2 Part ⅠWarming Up, Prereading，Reading & ComprehendingⅠ.单词拼法1．The language is rich in v________，that is to say, it has a large number of words.答案：vocabulary2．Are you a visitor or a n________ here?答案：native3．Growing vegetables looks easy, but a________ there is a lot to learn.答案：actually4．I think the new ship is not good enough to make a long v________.答案：voyage5．One should always b________ his opinion on facts.答案：base6．He has lost his i________ card and was questioned by the police.答案：identity7．We all admire her for her speaking English f________.答案：fluently8．Tom and Jack are good friends; the former is a teacher, the ________ is a student.答案：latter9．They bought some new beds to furnish their new a________.答案：apartment10．We took the e________ to the eighteenth floor.答案：elevatorⅡ.短语填空at present, make use of, because of, come up, at the end of, even if, such as, a number of, more than, in some ways1．We stayed in all day ________ the rain.答案：because of2．________，the world economic situation to China should be an unusual good opportunity.答案：At present3．He lives ________ the road.答案：at the end of4．I know many of them, ________ John, Peter and Tom.答案：such as5．________ she were very busy, she would go.答案：Even if6．We are ________ energy from the sun in many ways.答案：making use of7．________ people complained about the poor lighting in the museum.答案：A number of8．He rang to say he would be late home—something had ________ at the office.答案：come up9．________ a quarter of the students never finished their courses.答案：More than10．As you see, we look the same ________.答案：in some waysⅢ.单项填空1．I can't imagine an old man over seventy succeeding in his ________ across the Atlantic in a boat.A．journey B．tourC．voyage D．travel解析：voyage主要指远距离的水上旅行，符合句意。

人教版高中英语必修一第二单元同步练习+答案

人教版高中英语必修一第二单元同步练习1. Studying abroad is big _____(挑战)to you, but it's really interesting.2. The boss wouldn't like the t_____discussed at the meeting.3. You must write the_____（标题）of the passage in capitals.4. One of the____（志愿者）for the rescue work injured himself when helping others.5. She gave us too much information, so everyone got c ______。

6. He introduced_____（先进的）technology and management into China.7. The girl who_____（毕业）from Cambridge University is called Amanda.8. He_____（推荐）his friend as the sales manager of the company.9.Let's take the______(责任）to build up a low-carbon city by riding bicycles.10.______（明显地），the students are not interested in the subject.二、选用方框中的短语（并用其适当形式）填空be good at, hand out, get used to, clean up ,be suitable for, prefer. ..to. . . ,be responsible for, sign up, graduate from behind schedule1. I will help_____ the roadside litter whenever possible. I hope my behavior will make a difference.2. If you want to go by bus, that __________me.3. George________ the accident because he didn't give a signal to other drivers.4. In the crowded city, my father_______ walking______ taking a bus.5. Lucy decided to _________for yoga classes at last yesterday.6. The teacher had the monitor_____________ the papers.7. Driving on the left is strange at first but you’ll soon __________it.8. As far as I'm concerned, she__________ playing the piano.9. Owing to various delays, we arrived two days___________.10. Many boys and girls go to college after ________ high school.四、根据汉语提示完成句子1. Our teacher_____ _____ ____ ____ _____ ______ The Wandering Earth.我们的老师推荐我们看《流浪地球》这部电影。

高一语文必修一第二单元测试题(带答案)

高一语文必修一第二单元测试题（带答案）一、(15分，每小题3分)1.下列词语中加点字的注音无误的一项是()A.押解(jiè)渐染(jiàn)图穷匕见恃才傲物(shì)B.熨帖(wèi)箴言(zhēn)啖以重利惴惴不安(zhuì)C.间或(jiàn)倔强(jué)扼腕叹息繁文缛节(rù)D.戏谑(xuè)挑剔(ti)拊膺顿足尔虞我诈(yú)2.下列句子中加点词的解释，有错误的一项是()A.秦王购之金千斤购：购买B.既东封郑，又欲肆其西封肆：延伸、扩张C.君安与项伯有故故：交情D.见陵之耻陵：侵犯、欺侮3.下列句子中加点词的意义和用法，相同的一组是A.吾其还也君知其难也B.夜缒而出于是荆轲遂就车而去C.还军霸上，以待大王来箕踞以骂D.行李之往来秦之遇将军，可谓深矣4.下列各句中，不含通假字的一项是A.今日往而不反者，竖子也B.不然，籍何以至此C.愿伯具言臣之不敢倍德也D.夫晋，何厌之有5.从句式的角度看，下列各句分类正确的一项是①晋军函陵，秦军泛南而燕国见陵之耻除矣③夫晋，何厌之有若属皆且为所虏⑤敢以烦执事大王来何操二、(9分，每小题3分阅读下面的文字，完成6～8题。

“历史”的层次王立群“历史”一词的建构实际上包含着四个层次：一是“真实的历史”，二是“记录的历史”，三是“传播的历史”，四是“接受的历史”。

“真实的历史”是指曾经发生过的历史事件和已经逝去的历史人物。

“真实的历史”具有两大特点：一是性，二是不可重复性。

“记录的历史”是历史学家根据当事人与旁观者的口述、回忆、文字记录下来的历史，比如《史记》。

当事人的口述一般来说是可信的，但是，当事人的口述与回忆有时也会存在问题。

比如记忆本身的多寡、误记、有意掩盖和无意选择等;而且，当事人只是历史事件的部分经历者，不可能了解历史事件的全过程。

至于历史事件发生的独特背景、原因，更难为每一位当事人所知晓。

人教版高一数学必修一第二单元《一元二次函数、方程和不等式》单元练习题(含答案)

人教版高一数学必修一第二单元《一元二次函数、方程和不等式》单元练习题（含答案）1．已知不等式210ax bx --≥的解集是1123x x ⎧⎫-≤≤-⎨⎬⎩⎭，则不等式20x bx a --<的解集是（） A ．{}23x x << B ．{2x x <或}3x > C ．1132xx ⎧⎫<<⎨⎬⎩⎭D ．13x x ⎧<⎨⎩或12x ⎫>⎬⎭2．已知0a >，0b >，且3为3a 与3b 的等比中项，则49aba b+的最大值为（）A ．124B ．125C ．126 D ．1273．函数2()(0)f x x x x=+>的最小值是（）． A ．2B ．2C ．22D ．34．若正数x ，y 满足x 2+3xy ﹣1=0，则x+y 的最小值是（） A ．23B ．223C ．33D ．2335．如果不等式2()0f x ax x c =-->的解集为{|21}x x -<<，那么函数()y f x =的大致图像是（）A ．B ．C ．D ．6．若0a b <<,则下列不等式恒成立的是 A ．11a b> B ．a b -> C ．22a b > D ．33a b <7．不等式()()0x b x c a x++≤-的解集为[)[)1,23,-+∞，则b c +=（）A ．5-B ．2-C ．1D ．38．如图在北京召开的第24届国际数学家大会的会标，会标是根据中国古代数学家赵爽的弦图设计的，颜色的明暗使它看上去像一个风车，代表中国人民热情好客．我们教材中利用该图作为一个说法的一个几何解释，这个说法正确的是（）A ．如果0a b >>,a b >B ．如果0a b >>,那么22a b >C ．对任意正实数a 和b ，有222a b ab +≥，当且仅当a b =时等号成立D ．对任意正实数a 和b ，有2a b ab +≥,当且仅当a b =时等号成立9．设()121p a a -=++，21q a a =-+，则（）．A ．p q >B ．p q <C ．p q ≥D ．p q ≤10．已知实数0a >，0b >，2a b +=，则12aa b+的最小值为（） A ．32B ．322C ．2D ．5211．设0a >，0b >55a 与5b 的等比中项，则11a b+的最小值为（） A ．8 B ．4 C ．1D ．1412．已知命题p ：R x ∃∈，使2254x x ++≤；命题q ：当0,2x π⎛⎫∈ ⎪⎝⎭时，()4sin sin f x x x=+的最小值为4.下列命题是真命题的是（） A ．p q ∧ B ．()()p q ⌝∧⌝C ．()p q ⌝∧D ．()p q ∧⌝第II 卷（非选择题）二、填空题13．若0x >时，函数21ax y x+=的最小值为5，则正实数a =____________.14．如图，等腰梯形ABCD 中，//AB CD 且2AB =，1AD =，2DC x =（(0,1)x ∈）．以,A B 为焦点，且过点D 的双曲线的离心率为1e ；以,C D 为焦点，且过点A 的椭圆的离心率为2e ，则12e e +的取值范围为_________15．若1x >，则函数()21f x x x =+-的最小值为___________. 16．设a 、b 是实数，且3a b +=，则22a b +的最小值是__________．三、解答题17．已知:(1)(2)0,:p x x q +-≥关于x 的不等式2260x mx m +-+>恒成立 (1)当x ∈R 时q 成立，求实数m 的取值范围;(2)若p 是q 的充分不必要条件，求实数m 的取值范围.18．已知,,2παβπ⎛⎫∈⎪⎝⎭，求,,ααβαββ+-的取值范围.19．设数列{a n }满足a 1＝t ，a 2＝t 2，且t ≠0，前n 项和为S n ，且S n +2﹣（t +1）S n +1+tS n ＝0（n ∈N *）．（1）证明数列{a n }为等比数列，并求{a n }的通项公式；（2）当t ＜2时，比较2n +2﹣n 与t n +t ﹣n 的大小；（3）若t ＜2，b n ，求证：2n．20．已知0,0a b >>，2224a b c ++=．（1）当1c =时，求证：()()339a b a b ++≥；（2）求2224411a b c +++的最小值．21．当[]13x ∈，时，一元二次不等式2280x x a -+-≤恒成立，求实数a 的取值范围.22．已知关于x 的不等式2520,ax x a R -+<∈. （1）当2a =时，解此不等式；（2）若此不等式的解集为{|2x x <-或1}3x >，求实数a 的值.23．你能从“盐水加盐变得更咸了”这一生活常识中提炼出一个不等式吗？若能，请写出这个不等式并证明；若不能，此题你将没有分.24．已知集合{}211600A x x x =--≤,{}133B x m x m =-≤≤+,若()AB A ⊆,求实数m 的取值范围.25．命题p :x ∀∈R ,2230x m +->成立；命题q :x ∃∈R ,2220x mx m -++<成立. (1)若命题p 为真命题,求实数m 的取值范围； (2)若命题q 为真命题,求实数m 的取值范围；(3)若命题p ､q 至少有一个为真命题,求实数m 的取值范围.参考答案1．A2．B3．C4．B5．D6．D7．B8．C9．D10．D11．B12．D 13．25414．)+∞15．1+16．17．(1) ()3,2m ∈- （2）10733m <<- 18．12,,2222aπππαβπαββ<+<-<-<<< 19．（1）证明见解析，a n ＝t n （2）t n +t ﹣n ＜2n +2﹣n （3）见解析 20．（1）详见解析；（2）9． 21．5a ≤ 22．（1）1|22x x ⎧⎫<<⎨⎬⎩⎭；（2）3-. 23．x x a y y a+<+，0x y <<，0a >，证明见解析. 24．4m ≤25．（1）32m m ⎧⎫>⎨⎬⎩⎭；（2）{1m m <-或}2m >；（3）{1m m <-或32m ⎫>⎬⎭。

高一化学必修一第二单元测试题

第二单元测试题一、单项选择题。

1．下列说法中正确的是()A．纯净物一定由分子构成B．由同种分子构成的物质一定是纯净物C．混合物肯定是由两种以上的元素组成的D．含有氧元素的化合物就是氧化物2．用下图表示的一些物质或概念之间的从属或包含关系中不正确的是()X Y Z例氧化物化合物纯净物A 含氧酸酸化合物B 溶液分散系混合物C 强电解质电解质化合物D 置换反应氧化还原反应离子反应3．下列物质的分类合理的是()A．氧化物：CO2、NO、SO2、H2OB．碱：NaOH、KOH、Ba(OH)2、Na2CO3C．铵盐：NH4Cl、NH4NO3、(NH4)2SO4、NH3·H2OD．碱性氧化物：Na2O、CaO、Mn2O7、Al2O34．下列说法正确的是()A．可用丁达尔效应区分溶液与胶体B．生石灰与水混合的过程只发生物理变化C．O3是由3个氧原子构成的化合物D．CuSO4·5H2O是一种混合物5．氯化铁溶液与氢氧化铁胶体具有的共同性质是()A．分散质粒子大小都在1～100nm之间B．有丁达尔效应C．加热蒸干、灼烧后都有氧化铁生成D．呈红褐色6．离子方程式H＋＋OH－===H2O所表示的反应是()A．所有酸和碱之间的中和反应B．所有强酸和强碱之间的中和反应C．所有可溶性酸和可溶性碱之间的中和反应D．强酸溶液与强碱溶液生成可溶性盐和水的反应7．下列化学方程式中，能用离子方程式SO2－4＋Ba2＋===BaSO4↓来表示的是()A．BaCO3＋H2SO4===BaSO4↓＋H2O＋CO2↑B．BaCl2＋Na2CO3===BaCO3↓＋2NaClC．Ba(OH)2＋CuSO4===Cu(OH)2↓＋BaSO4↓D．BaCl2＋Na2SO4===BaSO4↓＋2NaCl8．（双选）下列各组离子因为生成难溶物而不能大量共存的是() A．Cl－、Fe3＋、NO－3、OH－B．HCO－3、Cl－、Na＋、H＋C．Ba2＋、Cl－、CO2－3、K＋D．NH＋4、K＋、OH－、Cl－9．下列离子方程式中书写正确的是()A．铁和稀硫酸反应：2Fe＋6H＋===2Fe3＋＋3H2↑B．碳酸钙和稀盐酸反应：CaCO3＋2H＋===Ca2＋＋CO2↑＋H2OC．铜和硝酸银溶液反应：Cu＋Ag＋===Cu2＋＋AgD．硫酸镁溶液与氢氧化钡溶液反应：Mg2＋＋2OH－===Mg(OH)2↓10．离子检验的常用方法有三种：检验方法沉淀法显色法气体法含义反应中有沉淀产生或溶解反应中有颜色变化反应中有气体产生A．NH＋4—气体法B．I－—沉淀法C．Fe3＋—显色法D．Ca2＋—气体法11．向含有下列离子的溶液中分别加入烧碱固体(溶液体积变化可忽略)，能引起下列离子浓度减小的是()A．HCO－3B．Cl－C．OH－D．CO2－312．下列反应的现象描述与离子方程式都正确的是()A．金属镁与稀盐酸反应：有气泡逸出Mg＋2H＋＋2Cl－===MgCl2＋H2↑B．氯化钡溶液与稀硫酸反应：有白色沉淀生成Ba2＋＋SO2－4===BaSO4↓C．碳酸钠溶液与盐酸反应：有气泡逸出Na2CO3＋2H＋===2Na＋＋CO2↑＋H2OD．NaHCO3溶液中加入过量的Ba(OH)2溶液：有白色沉淀产生2HCO－3＋Ba2＋＋2OH－===BaCO3↓＋2H2O＋CO2－313．下列反应完成后有沉淀生成的是()A．BaCl2溶液与Na2CO3溶液加足量CH3COOH溶液B．Ba(OH)2溶液与KNO3溶液加足量稀硫酸C．AgNO3溶液与Na2CO3溶液加足量稀硝酸D．Ca(OH)2溶液与FeCl3溶液加足量稀硝酸14．下列各组微粒中，在一定条件下均可以作氧化剂的是()A．Fe、H2O、CO2B．Fe3＋、MnO－4、NO－3C．Cl2、HClO、Mg D．ClO－、Cl－、Ag＋15．将下列离子方程式改写成化学方程式，正确的是()A．Cu2＋＋2OH－===Cu(OH)2↓CuCO3＋2NaOH===Cu(OH)2↓＋Na2CO3B．CO2－3＋2H＋===H2O＋CO2↑BaCO3＋2HCl===BaCl2＋H2O＋CO2↑C．Ca2＋＋CO2＋3===CaCO3↓Ca(OH)2＋BaCO3===CaCO3↓＋Ba(OH)2D．H＋＋OH－===H2O2KOH＋H2SO4===K2SO4＋2H2O二、非选择题16、某溶液中可能含有大量下列阴离子：OH－、SO2－4、CO2－3、Cl－。

高中数学必修一第二单元检测题

一、选择题:本大题共8小题,每小题6分,共48分1、函数32+=-x a y （a >0且a ≠1）的图象必经过点（）（A ）（0,1）（B ） (1,1) （C ） (2,3) （D ）(2,4)2、三个数3.0222,3.0log ,3.0===c b a 之间的大小关系是（）（A ）b c a <<. （B ） c b a << （C ）c a b << （D ）a c b << 3、函数的定义域为（）（A ）[1，3] （B ）),3()1,(+∞⋃-∞ （C ）（1，3）（D ）（1，2）∪（2，3）4、已知镭经过100年，剩留原来质量的95．76%，设质量为1的镭经过x 年的剩留量为y ，则y 与x 的函数关系是（）（A ）y =(0．9576)100x（B ）y =(0．9576)100x（C ）y =( )x （D ）y =1－（0．0424）100x5、函数y =x a log 在[1,3]上的最大值与最小值的和为1，则 a =（）（A ）（B ） 2 （C ） 3 （D ）6、下列函数中，在区间（0，2）上不是增函数的是（）（A ） 0.5log (3)y x =- （B ） 12+=x y （C ） 2x y -= （D ）x y 22=7、函数与（）在同一坐标系中的图像只可能是（）；；；。

8、对于函数f (x )定义域中任意的x 1，x 2（x 1≠x 2），有如下结论：①f (x 1+x 2)=f (x 1)+f (x 2)；② f (x 1·x 2)=f (x 1)+f (x 2 ) ；③1212()()f x f x x x -->0； ④1212()()()22x x f x f x f ++<.当f (x )=lo g 2 x 时，上述结论中正确结论的序号选项是（A ） ①④ （B ） ②④ （C ）②③（D ）①③ 二、填空题(本大题共4小题,每小题5分,共20分)9函数)5lg()(-=x x f 的定义域是．10、求值：013312log log 12(0.7)0.252-+-+＝________ _． 1009576.02131x a y =x y a log -=1,0≠>a a 且)34(log 1)(22-+-=x x x f11、已知幂函数()y f x =的图象经过点(3,3)，那么这个幂函数的解析式为 .12、设,0.(),0.x e x g x lnx x ⎧≤=⎨>⎩则1(())2g g =__________ 三、解答题(第12题7分，13题10分，第14题15分，共32分, 解答应写出文字说明，证明过程或演算步骤)13、求log 2．56．25+lg 1001+ln e +3log 122+的值． 14、已知m >1，试比较（lg m ）0．9与（lg m ）0．8的大小．15、已知()(01)x x f x a a a a -=+>≠且（Ⅰ）证明函数f ( x )的图象关于y 轴对称；（4分）（Ⅱ）判断()f x 在(0,)+∞上的单调性，并用定义加以证明；（7分）（Ⅲ）当x ∈［1，2］时函数f (x )的最大值为25，求此时a 的值. （4分）（Ⅳ）当x ∈［－2，－1］时函数f (x )的最大值为25，求此时a 的值. （4分）。

(完整版)高中生物必修一第二单元测试题及答案

第二章组成细胞的分子一、选择题1．生活在沙漠中的仙人掌与生活在海水中的鲨鱼，组成它们的化学元素的种类（）Ａ．大体相同Ｂ．区别较大Ｃ．很难确定Ｄ．没有一定的标准2．占肝细胞干重50%以上的有机物是( )A．水B．蛋白质C．脂质D．核酸3．生命的基本元素包括（）A．C、H、O、N B．K、Ca、Na、MgC．C、S、P、N D．Cu、I、Mn、Co4．人体生活细胞中含量最多的有机化合物是（）Ａ．无机盐Ｂ．脂质Ｃ．水Ｄ．蛋白质5．在组成人体的化学元素中，最基本的元素，含量最多的元素、占细胞干重最多的元素，依次是（）A．C、O、C B．C、H、O C．C、O、O D．C、O、N 6．生物体进行生命活动的物质基础是指（）A．组成生物体的各种化学元素B．组成生物体的化合物C．各种化学元素和化合物D．组成生物体的各种化学元素和化合物7．组成生物体的化学元素没有一种是生物界所特有的。

这个事实说明（）A．生物界与非生物界具有统一性B．生物体的组成离不开无机物C．生物体由有机物和无机物组成D．生物界与非生物界具有差异性8．牛通过吃草从草中获得化合物和元素。

那么，牛和草体内的各种化学元素( ) A．种类差异很大，含量大体相同B．种类和含量差异都很大C．种类和含量都是大体相同的D．种类大体相同，含量差异很大9．下列哪个实验用到显微镜（）Ａ．还原糖的鉴定Ｂ．蛋白质的鉴定Ｃ．检测脂肪Ｄ．检测淀粉10．下列物质中，能被苏丹Ⅳ染液染成红色的是（）Ａ．马铃薯块茎Ｂ．浸软的蓖麻种子Ｃ．蛋清液Ｄ．苹果11．在用双缩脲试剂鉴定蛋白质时，正确的操作是（）Ａ．2mL蛋白稀释液先加0.1g/mL的NaOH溶液1mL，再加3～4滴的0.01g/mL CuSO4溶液Ｂ．2mL蛋白稀释液先加3～4滴的0.01g/mL CuSO4溶液，再加0.1g/mL的NaOH溶液1mL Ｃ．2mL蛋白稀释液，同时加入0.1g/mL的NaOH溶液1mL和0.01g/mL CuSO4混合液Ｄ．在NaOH和CuSO4混合液中加入2mL蛋白稀释液12．下列哪组试剂在使用过程中，必须经过加热（）Ａ．斐林试剂鉴定可溶性还原糖的过程中Ｂ．苏丹Ⅳ染液在鉴定动物组织中的脂肪时Ｃ．双缩脲试剂鉴定蛋白质时Ｄ．碘液鉴定淀粉时13．谷氨酸的R基为—C3H5O2，在一个谷氨酸分子中，含有碳和氧的原子数分别是( ) A．4，4 B．5，4 C．4，5 D．5，514．一个由n 条肽链组成的蛋白质分子共有m 个氨基酸，该蛋白质分子完全水解共需水分子( )A ．n 个B ．m 个C ．(m ＋n )个D ．(m －n )个15．丙氨酸的R 基为-CH 3、赖氨酸的R 基为-C 4H 10N ，在它们缩合成的二肽分子中含有的C 、H 、O 、N 原子数分别为（）A ．9、21、4、3B ．9、19、4、3C ．9、19、3、3D ．9、19、3、216．20种氨基酸的平均分子量为128，由100个氨基酸构成的蛋白质（一条肽链），其分子量约为（）A ．12800B ．11000C ．11018D ．780017．一条含有9个肽键的多肽，至少应有游离的氨基和羧基分别是（）A ．9、9B ．10、10C ．8、8D ．1、118．现有1000个氨基酸，共有氨基1050个，羧基1020个，由它们合成的六条肽链中，游离的氨基和羧基数目分别为（）A ．1044、1014B ．56、26C ．6、6D ．1、119．由39个氨基酸构成的蛋白质（只由一条肽链构成），在合成该蛋白质的过程中，失去的水分子数是（）A ．38个B ．39个C ．40个D ．78个20．下列哪种蛋白质中，含有100个肽键的是（）A ．蛋白质中只含一条由100个氨基酸组成的多肽链B ．蛋白质中含两条各由51个氨基酸组成的多肽链C ．蛋白质中含三条各由34个氨基酸组成的多肽链D ．蛋白质中含四条各由27个氨基酸组成的多肽链21．在人体的消化道内，要将一个由4条肽链构成的含有288个氨基酸的蛋白质分子彻底消化，需要消耗的水分子数是（）A ．289B ．287C ．284D ．022．有四种足量的氨基酸组成的四肽最多有几种（）Ａ．４种Ｂ．８种Ｃ．24种Ｄ．256种23．形成蛋白质结构的层次从小到大依次是：①氨基酸 ② C 、H 、O 、N 等元素 ③ 氨基酸脱水缩合 ④ 一条或几条多肽链连接在一起 ⑤ 多肽 ⑥ 蛋白质（）A ．②→①→③→④→⑤→⑥B ．②→①→③→⑤→④→⑥C ．②→①→⑥→⑤→③→④D ．①→②→③→④→⑤→⑥24．血红蛋白分子中不含有的化学元素是（）A ．CB ．NC ．MgD ．Fe25. 下列分子中，与构成生物体的蛋白质的氨基酸分子式不相符的是（）A ． B. H 2N —CH 2—CH 2—COOH C ． D.26．下列有关肽键写法中，不正确的是（）27．下面是3种氨基酸的结构式，由这3种氨基酸按顺序脱水缩合所形成的化合物中，含有H 2N —CH —CH 3 H 2N —(CH 2)4—CH —COOH NH 2 H 2N —CH —COOH 2CH 2COOH B.—CO —NH — —C —N —O A —C —— H O C ． —C —— H O D ．的氨基、羧基和肽键的数目依次是（）A ．1，2，3B ．1，1，3C ．1，2，2，D ．2，2，228．某蛋白质由n 个肽链组成，氨基酸的平均分子质量为a ，该蛋白质所含的氨基酸有b /3，则该蛋白质的相对分子质量约为（）A ．26183ab b n -+B ．163ab b -C ．1()183b a -⨯D ．11()1833ab b n --⨯ 29．同一草场上的牛和羊吃了同样的草，可牛肉和羊肉的口味却有差异，这是由于（）A ．同种植物对不同生物的影响不同B ．牛和羊的消化功能强弱有差异C ．牛和羊的蛋白质结构有差异D ．牛和羊的亲缘关系比较远30．DNA 分子的多样性取决于( )A ．核苷酸种类多样B ．碱基配对方式多样C ．空间结构多样D ．碱基对排列顺序多样31．组成DNA 的基本成分是( )①核糖 ②脱氧核糖 ③磷酸 ④腺嘌呤、鸟嘌呤、胞嘧啶⑤胸腺嘧啶 ⑥尿嘧啶A ．①③④⑤B ．①②④⑥C ．②③④⑤D ．②③④⑥32.“观察DNA 和RNA 在细胞中的分布”实验中没有用到的试剂是（）A 、质量分数为0.9%的NaCl 溶液B 、质量分数为8%的盐酸C 、吡罗红、甲基绿染色剂D 、斐林试剂33.观察DNA 和RNA 在细胞中的分布时，低倍镜换用高倍镜的正确操作顺序为( )①转动反光镜使视野明亮 ②在低倍镜下观察清楚后，把要放大观察的物像移至视野中央③转动转换器使高倍物镜对准通光孔 ④观察并用细准焦螺旋调焦，使视野清晰A ．①②③④B ．③④①②C ．②③①④D ．④①②③34．细胞中的DNA 和RNA 的分布特点是( )A ．DNA 分布在细胞核中，RNA 分布在细胞质中B ．DNA 分布在细胞质中，RNA 分布在细胞核中C ．DNA 主要分布在细胞核中，RNA 主要分布在细胞质中D ．DNA 主要分布在细胞质中，RNA 主要分布在细胞核中35．将吡罗红甲基绿染色剂在口腔上皮细胞装片上滴两滴，DNA 和RNA 分别呈现的颜色是( )A ．红色红色B ．绿色红色C ．绿色绿色D ．红色绿色36.小麦叶肉细胞中的DNA 存在于（）A ．细胞核、叶绿体和高尔基体B ．内质网、线粒体和细胞核C ．线粒体、叶绿体和细胞核D ．细胞核、核糖体和线粒体37．制作脱氧核苷酸模型时，各部件之间需要连接，下图中连接正确的是( )NH 2—C —COOH 3 H NH 2—C —COOH H NH 2—C —CH 2—OH H38. RNA与DNA比较，RNA特有的是( )A．核糖和尿嘧啶B．核糖和胸腺嘧啶C．脱氧核糖和尿嘧啶D．脱氧核糖和胸腺嘧啶39．组成DNA和RNA的五碳糖共有( )A．2种B．4种C．6种D．8种40．下列四种核苷酸中，不可能在RNA中找到的是( )41．SARS病毒中的核酸含有的碱基种类有( )A．2种B．4种C．5种D．8种42．人体细胞中，由A、G、T、、C、U四种碱基参与构成的核苷酸种类有( ) A．4种B．5种C．6种D．8种43．蛋白质、DNA和RNA的基本组成单位依次是（）A．氨基酸、核苷酸、核糖核苷酸B核苷酸、脱氧核苷酸、核糖核苷酸C．氨基酸、核糖核苷酸、脱氧核苷酸D．氨基酸、脱氧核苷酸、核糖核苷酸44．下列物质中都含有氮元素的是( )①核糖核酸②糖原③胰岛素④淀粉A．①②B．①③C．②③D．③④45．马拉松长跑运动员在进入冲刺阶段时，发现少数运动员下肢肌肉发生抽搐，这是由于随着大量排汗而向外排出了过量的( )A．水B．钙盐C．钠盐D．尿素46．甲状腺激素、血红蛋白和叶绿素中含有的重要元素依次是( )A．I、Fe、Mg B．Cu、Mg、I C．I、Mg、Fe D．Fe、Mg、I 47．生物体内含Zn2+ 的酶最多，有七十多种酶的活性与Zn2+ 有关，缺乏Zn2+ 的生物就无法正常生活，这说明无机盐( )A．对维持生物体的生命活动有重要作用B．对维持细胞形态有重要作用C．对维持酸碱平衡有重要作用D．对调节细胞内的溶液浓度有重要作用48．科学家在利用无土栽培法培养一些名贵花卉时，培养液中添加了多种必需化学元素。

人教版高一数学必修一第二单元《一元二次函数、方程和不等式》单元练习题(含答案)

人教版高一数学必修一第二单元《一元二次函数、方程和不等式》单元练习题（含答案）一、单选题 1．已知1x >,则91x x +-的最小值为( ) A ．4B ．6C ．7D ．102．某工件的三视图如图所示，现将该工件通过切削，加工成一个体积尽可能大的长方体新工件，并使新工件的一个面落在原工件的一个面内，则原工件材料的利用率为（=新工件的体积材料利用率原工件的体积）（）A ．89πB ．169πC ．321)πD ．321)π3．已知正项等比数列{}n a 满足：7652a a a =+，若存在两项,m n a a ，使得2116m n a a a =，则14m n +的最小值为（） A ． 43B ．9C ．32D ．不存在4．对任意0,6x π⎡⎤∈⎢⎥⎣⎦任意()0,y ∈+∞，不等式292cos sin 4y x a x y -≥-恒成立，则实数a 的取值范围是 A ．(],3-∞B ．22,3⎡⎤-⎣⎦C ．22,22-⎡⎣D ．[]3,3-5．下列函数中，y 的最小值为2的是（）A ．1y xx=+B ．2y =C ．x x y e e -=+D ．1sin 0sin 2y x x x π⎛⎫=+<< ⎪⎝⎭6．关于x 的不等式22280(0)x ax a a --<>的解集为12(,)x x ，且：2115x x -=，则a =（） A ．52B ．72C ．154D ．1527．若,a b 为正实数，且1a b +=，则122a b+的最小值为 A ．5 B ．4C ．92D ．38．不等式102xx -≥+的解集为（）. A ．[]2,1- B ．(]2,1-C ．[)2,1-D ．(][),21,-∞-+∞9．如果不等式ax 2+bx+c<0 （a≠0）的解集是空集,那么（） A ．a<0，且b 2-4ac>0 B ．a<0且b 2-4ac≤0 C ．a>0且b 2-4ac≤0 D ．a>0且b 2-4ac>010．若直线1(00)x ya b a b+=>>，过点()1,2，则2a b +的最小值为（）A ．6B ．4+C ．8D ．911．已知0a b <<，则（） A ．11a b< B ．2a ab <C ．22a b <D ．11a b a<- 12．若0x >，则1x x -+的最小值为（）A ．12B ．1CD ．2第II 卷（非选择题）二、填空题13．若13a b -<+<，24a b <-<，则b 的取值范围___________.14．已知等差数列{}n a 的公差为d ，关于x 的不等式2120dx a x +≥的解集为[]0,9，则使数列{}n a 的前n 项和n S 取最大值的正整数n 的值是______．15．设0,0a b >>.若2是2a 与2b 的等比中项，则11a b+的最小值为． 16．已知p ：2230x x --<，若1a x a -<-<是p 的一个必要不充分条件，则实数a 的取值范围是_________.三、解答题17．解不等式2024x x <--<18．不等式2260(0)kx x k k -+->≠(1)若不等式的解集为{|3x x <-或}2x >-,求k 的值 (2)若不等式的解集为R ,求k 的取值范围19．已知对于正数a 、b ，存在一些特殊的形式，如：22a b a b ++、222a b +、2a b +等. （1）判断上述三者的大小关系，并证明；（2）定义：间距22221||2a b a b a b ++∆=-+，间距222||22a b a b++∆=-，判断两者的大小关系，并证明.20．已知a,b,c 为互不相等的非负数,求证：a 2+b 2+c 2＞(++).21．已知函数()222y ax a x =-++，a R ∈（1）32y x <-恒成立，求实数a 的取值范围；（2）当0a >时，求不等式0y ≥的解集；（3）若存在0m >使关于x 的方程()21221ax a x m m-++=++有四个不同的实根，求实数a 的取值.22．如图所示，设矩形()ABCD AB BC >的周长为24，把它沿AC 翻折，翻折AB '后交DC 于点P ，设AB x =．（1）用x 表示DP ，并求出x 的取值范围；（2）求ADP △面积的最大值及此时x 的值．23．证明下列不等式：（167225；（2）如果0a >，0b >，则lg lg lg 22a b a b++≥24．某农贸公司按每担200元的价格收购某农产品，并按每100元纳税10元（又称征税率为10个百分点）进行纳税，计划可收购a 万担，政府为了鼓励收购公司多收购这种农产品，决定将征税降低x （0x >）个百分点，预测收购量可增加2x 个百分点. （1）写出税收y （万元）与x 的函数关系式；（2）要使此项税收在税率调整后不少于原计划税收的83.2%，试确定x 的取值范围25．在一个限速40km /h 的弯道上，甲.乙两辆汽车相向而行，发现情况不对，同时刹车，但还是相碰了.事发后现场测得甲车的刹车距离略超过12m ，乙车的刹车距离略超过10m .又知甲，乙两种车型的刹车距离s m 与车速x km /h 之间分别有如下关系：20.10.01s x x =+甲，20.050.005s x x =+乙.问超速行驶谁应负主要责任?参考答案1．C2．A3．C4．A5．C6．A7．C8．B9．C10．C11．D12．D 13．51,22⎛⎫- ⎪⎝⎭14．5 15．4 16．2a >17．{x|21x -<<-或23}x <<18．（1）25k =-；（2）,⎛-∞ ⎝⎭19．（1）222a b a ba b++≥≥+；证明见解析；（2）12∆≥∆，证明见解析. 20．见解析21．（1）(4,0]-；（2）当02a <<时，不等式的解集为 {|1x x ≤或2}x a≥；当2a =时，不等式的解集为R ；当2a >时，不等式的解集为 2{|x x a≤或1}x ≥；（3）(,4-∞--22．（1）()7212612DP x x=-<<；（2）当x =108-． 23．（1）见解析；（2）见解析 24．（1）1(50)?(10)(010)25y a x x x =+-<<；（2）{|02}.x x <≤. 25．乙应负主要责任.。

高一语文必修一第二单元测试卷

高一语文必修一第二单元测试卷【篇一】一、基础巩固1．下列各句中不含通假字的一项是()A．今老矣，无能为也已B．行李之往来，共其乏困C．因人之力而敝之D．失其所与，不知【解析】A项，“已”同“矣”；B项，“共”通“供”；D项，“知”通“智”。

【答案】C2．下列句中加点的实词解释不正确的一项是()A．公从之。

辞曰辞：推辞B．许之许：答应C．且君尝为晋君赐矣赐：赏赐D．朝济而夕设版焉济：渡河【解析】赐：恩惠。

这里指秦穆公曾派兵护送晋惠公回国的事。

【答案】C3．对下列句子中“之”字用法归类正确的一项是()①臣之壮也，犹不如人②是寡人之过也③邻之厚，君之薄也④行李之往来，共其乏困⑤阙秦以利晋，唯君图之⑥微夫人之力不及此A．①③④/②⑥/⑤B．①②/③⑥/④⑤C．①④/②③⑥/⑤D．①⑤/②⑥/③④【解析】①③④用于主谓之间，取消句子独立性；②⑥结构助词，的；⑤代词，这件事，指秦、晋围郑这件事。

【答案】A4．下列句子中加点的词与现代汉语词义相同的一项是()A．若舍郑以为东道主B．行李之往来C．若亡郑而有益于君D．微夫人之力不及此【解析】C项，都是“有帮助，有好处”的意思。

A项，东方道路上的主人/请客的主人；B项，出使的人/出门时所带的包裹、箱子等；D项，那人，指秦穆公/尊称一般人的妻子。

【答案】C5．下列文言句式与其他三项不同的一项是()A．以其无礼于晋B．且贰于楚也C．夫晋，何厌之有D．若亡郑而有益于君【解析】C项，宾语前置句，A、B、D三项均为状语后置句。

【答案】C二、课内阅读阅读下面的文字，完成6～10题。

晋侯、秦伯围郑，以其无礼于晋，且贰于楚也。

晋军函陵，秦军氾南。

佚之狐言于郑伯曰：“国危矣，若使烛之武见秦君，师必退。

”公从之。

辞曰：“臣之壮也，犹不如人；今老矣，无能为也已。

”公曰：“吾不能早用子，今急而求子，是寡人之过也。

然郑亡，子亦有不利焉。

”许之。

夜缒而出，见秦伯，曰：“秦、晋围郑，郑既知亡矣。

高一英语必修一第二单元测试题及答案

高一英语必修一第二单元测试题及答案第一节：单项填空（共15小题；每小题2分, 满分30分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

1. —May I have a look at those books？—______.A. Not at allB. That’s rightC. Be my guestD. You’re welcome2. Do you have any difficulty ______ these flowers?I’d like to help you if you need.A. to plantB. for plantingC. with plantingD. in planting3. If you know anything ______ about it, you should tell us.A. after allB. all in allC. at allD. first of all4. ______ the playground, we learned that the football match had already begun.A. ArriveB. To arriveC. Arriving atD. Arrive at5. —How did it ______ that all the flowers died?—I had forgotten to water them.A. come aboutB. come backC. come onD. come down6. I don’t feel equal ______ doing the job. It’s too difficult for me.A. forB. toC. inD. on7. ____ students are practising ___ English with each other at the English corner.A. The number of; to speakB. A great deal of; spokenC. A great many; speakD. A number of; speaking8. —Do you want to go out tonight?—_______, it’s up to you.A. Yes, I want toB. That’s all rightC. I’m easyD. No problem9. He goes to work every day ______.A. except for rainy daysB. besides it rainsC. but that it rainsD. except on rainy days10. She is very hard-working, _______ he is very lazy.A. whileB. whenC. asD. if11. If you go on doing that kind of foolish things, you will ______ in prison.A. bring upB. end upC. take upD. come up12. _______ what he had already, the new stamps were not very interesting.A. Comparing withB. Replaced toC. Compared withD. Replaced to13. The reason why he didn’t attend the meeting is__ he stayed up late last night and didn’t get up until ten o’clock this morning.A. becauseB. whyC. forD. that14. The scenery in my hometown is beautiful beyond ______.A. communicationB. expressionC. situationD. organisation15. I’ll be at your ______ in three minutes.A. serviceB. orderC. movementD. signal第二节：完形填空（共20小题；每小题1.5分，满分30分）阅读下面短文，掌握其大意，然后从36-55各题所给的四个选项（A、B、C和D）中，选出最佳选项。

(完整版)高中历史(必修一)第二单元测试题及详解答案

高中历史（必修一）第二单元测试题一、选择题(本大题共12小题，每小题4分，共48分)1.俗话说：“一方水土养一方人”，从人类社会进步的角度看，希腊的自然地理环境对希腊文明的最大影响是 ( )A.有利于希腊民主政治的形成B.有利于希腊航海事业的发展C.有利于希腊向海外扩张D.导致各邦长期独立自治2.翻阅下面这部著作，你不可能看到的论述是 ( )A.城邦是古希腊的一种国家形态B.城邦是具有共同地域的公民团体C.城邦的狭小阻碍公民直接参与城邦政治D.城邦的基本特征是小国寡民和独立自主3.实行民主制的雅典国家被称作“男性公民的俱乐部”，这意味着雅典国家的主人是 ( )A.全体奴隶主B.除奴隶之外的全体成年男性C.除奴隶和外邦人之外的成年男性D.从事工商业的成年男性4.在雅典民主政治发展的过程中，曾经实行陶片放逐法。

在公民大会上，凡公民认为某人的行为有损公民利益，就把他的名字写在陶片上，如写名字的人数超过6 000就意味着多数通过，被写名字的人就要被流放国外10年，但不得动其财产。

该材料反映了雅典民主政治的哪些基本原则？ ( )①人民主权②少数服从多数的民主集中制③私有财产不可侵犯④轮番而治A．①②③④ B．①②④ C．①③④ D．①②③5．(2012届广东梅岗中学高三第三次测试)亚里士多德在《雅典政制》中说：“因为人民有了投票权利，就成为政府的主宰。

”这说明 ( )A.雅典人民实现了当家作主B.公民大会是日常司法机关C.雅典公民通过投票参与国家管理D.雅典公民利用陶片投票选举最高权力机构6．(2012届广东惠州博罗中学月考)中国当代著名导演艺术家罗锦鳞先生在编导古希腊悲剧《安提戈涅》中，直接写道：“你是君王，我是百姓，但是我们有同样的发言权。

”此语表明他侧重古希腊悲剧所展现的 ( ) A．戏剧情节 B．等级观念 C．人文素养 D．民主精神7．(2012届广东韶关北江中学高三月考)梭伦在抒情诗中表达了实行民主改革的原则：“我所给予平民的适可而止，他们的荣誉不减损也不增多；即使是对那些有财有势的人也一样，我不使他们遭受不当的损失。

人教版高中英语必修一第二单元作业

1-2课时作业Ⅰ.阅读理解A(2022·成都模拟)Castle Rock, Colorado, is in the Front Range between Denver and Colorado Springs. The town was first settled in the 1870s and named for the rock formation on its western edge. More than 5400 acres of open space, 250 acres of parks and 57 miles of trails surround the town. Castle Rock offers many activities throughout the year.Douglas County FairgroundsThe Douglas County holds a rodeo every August. Many activities are held in the city during the rodeo, including 4-H exhibits, animal shows and the farm yard, a hands-on educational area providing information about animals and agriculture. Local singing and dancing acts perform on the Community Stage. Carnival rides and games ensure that children have fun.Town RecreationThe Castle Rock Recreation Center features 84000 square feet of fun, including a leisure pool complete with water slides, spa and lazy river. Rent one of the meeting rooms and host your child's birthday party. Introduce your child to cooking basics through classes such as Little Chefs, Holiday Cooking Arts, Just Desserts and Iron Chefs. Discounts with membership cards.Metzler Ranch ParkMetzler Ranch Park features many outdoor activities for children. Kids can join a youth baseball or softball league, ride a bike along the paved path or swing and climb on the playground equipment. Bring your child's ice skates and glide along one of two skating rinks. Discounts book online.Theatre of DreamsTheatre of Dreams is a 72-seat theater that presents magic and illusion entertainment. Two professional magicians founded the theater. Children especially enjoy the family-oriented shows. The facility can be rented for special events such as birthday parties and bar mitzvahs. Reserve in advance.1．Which of the following offers winter sports?A．Town Recreation.B．Metzler Ranch Park.C．Theatre of Dreams.D．Douglas County Fairgrounds.2．What do Town Recreation and Theatre of Dreams have in common?A．They have various classes for kids.B．They offer discounts for the members.C．They provide service for special events.D．They are not open to kids unaccompanied.3．Who would most probably be interested in Castle Rock?A．College graduates.B．Retired citizens.C．Newly-married couples.D．Parents with kids.【语篇解读】本文主要介绍了科罗拉多州的罗克堡的四个好去处。

高一语文(必修一)《第二单元芣苢》练习题-附答案解析

高一语文(必修一)《第二单元芣苢》练习题-附答案解析学校:___________姓名：___________班级：____________一、填空题1．给下列加点字注音①芣苢．．________②掇．________③捋．________④袺．________⑤襭．________⑥兜鍪．．________⑦胛．________⑧莳．________未匝⑨朝．________餐二、非选择类2．《芣苢》：解释下列加点字词。

①采采．．芣苢形容词，______________________②薄言．．采之助词，______________________③薄言有．之动词，______________________④薄言掇．之动词，______________________⑤薄言捋．之动词，______________________⑥薄言袺．之动词，______________________⑦薄言襭．之动词，______________________⑧雨从头上湿到胛．名词，______________________⑨唤渠．朝餐歇半霎代词，______________________⑩秧根未牢莳．未匝．莳：动词，___________匝：动词，_________________3．名词的活用唤渠朝餐．．歇半霎______________________，______________________三、选择题4．下列加点词语的解释，全部错误的一项是（）①薄言．．采之（助词，无实义）②薄言掇．之（选取）③雨从头上湿到胛．（肩胛）④唤渠朝餐．．歇半霎（早饭）⑤照管．鹅儿与雏鸭（提防）⑥秧根未牢莳未匝．（捆扎）A．①③⑤B．②④⑥C．①③④D．②⑤⑥5．下列关于两首诗的理解，错误的一项是（）A．《芣苢》是妇女们采集野菜时唱的民歌。

此诗采用赋的方式，直叙其事，通过妇女们采野菜的过程，描绘了一幅其乐融融的劳动画面。

人教版高中英语必修一第二单元习题

Unit 2 English around the world一，单项选择1. My hometown has changed so much that I can’t _____ it.A. knowB. understandC. recognizeD. realize2. There was no wind. The smoke rose _____ upward.A. strangelyB. straightC. frequentlyD. fluently3. From her _____, I guess she must come from the West of America.A. soundB. voiceC. accentD. noise4. The change was so _____ that we hardly noticed it.A. actualB. officialC. gradualD. entire5. The _____ language used in most international organizations is English.A. officialB. nativeC. fluentD. separate6. Nobody knows the man killed in the accident, so it is difficult for the police to find out his _____.A. powerB. expressionC. weightD. identity7. Many questions ______ at the meeting, but he answered none.A. came upB. raisedC. were risenD. came up with8. Every farmer knows that weather _____ farming.A. plays a part inB. takes part inC. makes use ofD. gets along with9. —Hello! Is Mr. John in the office—Yes. But I’m sorry. He is busy _____ and can’t speak to you.A. at onceB. at presentC. at the endD. at first10. _____, the great mother, in order to save her sick child, kept waiting for four hours in the heavy snow.A. It dependsB. Take it easyC. Believe it or notD. It is OK二，完成句子1. Her novel, which (基于) her family’s history,drew many people’s attention as soon as it came out. (base)2. The elevator stopped on the first floor, and a gentleman in white askedall of us(不要乘坐电梯). (take)3. If you can ______________ (充分利用你的时间), your studies will get better soon.4. More and more people now realize health and happiness are the most important ______________（比起以前）.5. He was late for the meeting (由于糟糕的天气).6. ------what did the teacher say------He ______________________________(命令我们不要离开)the lab until we finished the experiment .(order)7. Today the number of people learning English _______________________ (正迅速增长).8. ___________________ (信不信由你)，he cheated in the exams.9. When I was worried, a child _____________ (走上前来) and showed me the way to the station.________ （不久） we realized the truth.(before)答案：单选题：CBCCA DAABC完成句子：1. is based on2. not to take the lift/elevator3. make full use of your time4. than ever before5. because of the bad weather6. order us not to leave7. is increasing rapidly 8. Believe it or not9. came up to me 10. wasn’t long before。

人教版高中英语必修一第二单元测试卷

人教版版高中英语测试题必修一Unit 2《English around the world》单元测试1笔试部分：I. 单项选择21. — How was your weekend?—Great! We ______ a picnic by the lake.A. haveB. are havingC. hadD. will have22. He looked at the envelope and __________ Jenny's handwriting immediately.A. understoodB. knewC. recognizedD. recovered23. A large number of students in our school ____ from the countryside; the number _____ growing these years.A. is; has beenB. are; has beenC. is; have beenD. are; have been24. Washington D.C., the capital of the United States, is one of ______ cities in the world.A. the biggestB. biggerC. much biggerD. big25. One of her American friends asked her, “Would you please ______ to my apartment for a visit?”A. come upB. keep upC. put upD. catch up26. — Excuse me? ______—It is over there, near the bus stop.A. How do you like the cinema?B. May I ask you the way?C. Where is the Bank of China?D. How far is the market from here?27. The ______ from England to India used to take more than six months as there were storms and huge waves at times.A. travelB. journeyC. tripD. voyage28. — Mum, ______ I play computer games?—Yes, you can. But you have to finish your homework first.A. mustB. mayC. willD. need29. English has become the most wildly spoken language in the world ______ its special role as an international language.A. becauseB. FromC. withD. because of30. Chinese is also spoken in many other countries in Asia, ______ Singapore and Malaysia.A. for exampleB. such asC. instead ofD. according to31. American English has so many _________ because the American people have come from allover the world.A. grammarB. vocabularyC. pronunciationsD. dialects32. I don't know ______ tomorrow. Can you tell me?A. when we startedB. when did we startC. when we will startD. when will we start33. Kitty and Lucy are both from England, so they are ______ English speakers.A. nativeB. internationalC. foreignD. same34. — John has hurt his leg.—Really? ______?A. Who did thatB. How did that happenC. What's wrong with himD. Why was he so careless35. Americans and Canadians can understand each other ______ they don't speak the same kind of English.A. now thatB. even ifC. as ifD. only if第二节完形填空(共20小题; 每小题1.5分, 满分30分)“Dad, I'm sure I can do it well th is time. I promise,” I said to myself and went up to the stage and began my play ...Finally I 36 from my piano and took a bow to the people in the hall. There was a 37 and then loud applause (掌声) burst out. I knew I 38 it. Tears filled my eyes. Then I 39 three years ago right here when it was my turn to play. I 40 the hall and saw my dad. He sat at the end of a 41 with a serious face.Suddenly I became 42 . I had practiced my piece for months, 43 then it seemed there was something wrong with my fingers. I forced out some 44 tune and left the stage in tears. I 45 .On the way home my father didn't say even a word. He just 46 the car in silence. I didn't say anything either. What could I say, really, after what I'd done? I knew how 47 Dad worked to earn enough money 48 my piano. That time he was 49 to come to a competition(比赛), but I let him down.I didn't remember how we got home. Dad never said a word the entire way home, and he never 50 one of my competitions again. I never got over the hurt of having 51 the person I most wanted to make proud. I'd 52 more than my competition that afternoon. I felt as if I'd lost the key to my father's heart, and he died before I could 53 it again.“God, why didn't you give me a 54 to make it up to him?” I'd often asked.I won first prize in the contest now. How I wish my father could share the 55 moment with me!36. A. dropped B. rose C. turned D. slid37. A. silence B. noise C. laughter D. shout38. A. got B. missed C. made D. caught39. A. thought B. realizedC. understoodD. remembered40. A. looked up B. looked aroundC. looked outD. looked over41. A. seat B. row C. group D. team42. A. nervous B. excited C. sick D. tired43. A. and B. though C. but D. so44. A. soft B. moving C. nice D. terrible45. A. succeeded B. wonC. failedD. disappeared46. A. drove B. started C. washed D. repaired47. A. quickly B. hard C. Warmly D. happily48. A. on B. in C. for D. with49. A. sad B. happy C. able D. unable50. A. attended B. noticed C. heard D. cared51. A. pleased B. surprisedC. disappointedD. satisfied52. A. felt B. lost C. made D. learned53. A. open B. close C. forget D. find54. A. piano B. duty C. chance D. contest55. A. exciting B. surprisingC. interestingD. relaxing第三部分阅读理解（共２０小题；每小题２分，满分４０分）ＡMany centuries ago, all people had to gather seeds and plants to eat. They did not know how to farm or raise animals for food. We call them the Stone Age people because they used stone tools and weapons.You may feel s urprised in the world today there are still people who live like the Stone Age people. They live in the places that are hard to reach. Because they have met few people from the outside world, they don't know about modern inventions. They have not learned ways of doing things from others.For 25,000 years, groups of people have lived alone in the middle of Australia. One of these groups is the Arunta tribe (部落). They do not know how to farm and how to raise sheep or cattle.The Aruntas spend most of their time searching for food and water. The men hunt animals with stone-tipped spears. The women and children look for roots, seeds and nuts. They use sticks to dig up the roots. Several Arunta families live together. They have no house. At night, they sleep around small fires.Now other people are moving into the center of Australia. Soon the Aruntas will no longer bea Stone Age people.56. The Stone Age people are called so because they ____.A. gathered seeds and plants to eatB. didn't know how to farmC. used stone tools and wea ponsD. didn't raise animals for food57. The Arunta tribe has lived ________.A. in the middle of AfricaB. in the center of AustraliaC. together with other peopleD. in poorly built houses58. Why do the Aruntas still live in the way as they lived before?A. Because they have not yet learned new ways from other people.B. Because they do not want to change their way of living.C. Because other people are moving in and living with the Aruntas.D. Because each family live alone without knowing others.59. It can be inf erred from the passage that ________.A. the Australians live much like the Stone Age peopleB. the Arunta tribe has a history of 25 centuriesC. the Stone Age people have at last disappeared in the worldD. the Aruntas will change their way of living sooner or laterＢThere are more than 250,000 rivers in the United States. Added up together, they flow for more than 5,500,000 kilometers.The largest and most famous river in the United States is the Mississippi. It starts near the northern border of the United States and flows through the center of the country for more than 3,700 kilometers. About 250 smaller rivers flow into the Mississippi. The mouth of the Mississippi empties into the Gulf of Mexico.However, the Missouri River is the longest river in the United States. It flows for about 4,000 kilometers. It begins in the Rocky Mountains of North America. It flows along the borders of seven states before it empties into the Mississippi River near the city of Saint Louis, Missouri.Three rivers that join together in the north central state of Montana form the Missouri River. The water is clear there. But, as it moves east and south, the Missouri River turns brown as it collects huge amounts of dirt from the land. That is why many people call the Missouri River the “Big Muddy”.Some people say the Columbia River in the northwest is the most beautiful river in America. It flows from the Canadian province of British Columbia into the United States through the state of Washington. The Columbia River is the largest river that empties into the Pacific Ocean.Another famous river is the Rio Grande. It is the longest river in the state of Texas. It forms the border between Texas and Mexico.The oldest river in the United States is the New River. It begins in the Appalachian Mountains of North Carolina and flows north through parts of Virginia and West Virginia. The New River may be also the second oldest in the world. It is funny how something so old can be called new.60. Near the city of Saint Louis is the place ________.A. where the Missouri River risesB. where the Missouri River joins the Mississippi RiverC. where other three rivers join the Missouri RiverD. where the Mississippi River flows into the ocean61. From Paragraph 4 we know that the water in the upper reaches of the Missouri River is ________.A. muddyB. dirtyC. clearD. brown62. In the state of Washington you can visit the beautiful ___.A. Missouri RiverB. Mississippi RiverC. New RiverD. Columbia River63. Which of the following rivers is the border between Texas and Mexico?A. The Rio Grande River.B. The New River.C. The Columbia River.D. The Mississippi River.ＣNowadays many students are interested in studying abroad.Attending schools abroad has many advantages. First, by looking at our own country from outside, we can best see the strong points and weak points of our nation and therefore widen our vision and broaden our minds. Second, while studying in a foreign country, we can travel widely, visiting famous scenic spots and making friends with the local people. Third, we can use the foreign language in our daily life so that our ability in that language may be improved quickly. But the most important is to learn advanced science and technology. For all these advantages, it is really worthwhile to go abroad for education.However, as everything has t wo sides, there are also some disadvantages in attending a foreign university. The most serious problem is the language barrier (障碍). Most of the students who are ready to go abroad do not prepare themselves well for the new language environment. As a result, on arriving there, they will find it difficult to understand what the instructors are saying in class. Besides, for not knowing about the customs and way of life of the local people, they may run into trouble in dea ling with various situations. Therefore, misunderstandings often arise. Furthermore, the cost of living is much higher than that in our country, so most students have to find part-time jobs in ord er to help support themselves. Faced with these difficulties, many students find themselves unable to pay full attention to their studies and some students may even fail in their courses and learn little.Therefore, given an opportunity to attend a school abroad, one must consider the factors carefully before making up his mind. On the one hand, it is a good thing to go and study abroad. But on the other hand, one must not neglect (忽视) the disadvantages.64. The following are all advantages of studying abroad EXCEPT ________.A. having more chances to get good jobsB. improving foreign language ability quicklyC. visiting well-known scenic spotsD. learning advanced science and technology65. The underlined word “instructors” in Paragraph 3 is closest in meaning to ________.A. neighborsB. teachersC. strangersD. classmates66. Why do some students find part-time jobs?A. Because they want to learn more skills in a different country.B. Because they want to make full use of their spare time.C. Because they are not interested in studying.D. Because they have to support themselves.67. The passage mainly tells us that ________.A. studying abroad is a good way to learn advanced science and technologyB. everything has two sidesC. people should think twice before going abroadD. going abroad has more advantages than disadvantagesＤThere is a lake near a forest in Sweden. The water in the lake is very clear and everything is quiet and still. On the far side of the water is some farmland and further away, across the field, is an old church built on a hill. It has just stopped raining. The brook flowing into the lake is full and there is still some half-melted (半融化的) snow from last winter on the ground.The reason why the water is so clear and everything is so quiet and still is that most of the animals and plants in and around the lake are dead. There are no birds because all the fish and insects, which the birds need for food, have disappeared. Many trees in the forest are losing their leaves and bark (树皮), and are sick and dying. Others were blown down by the strong winds of last winter. A farmer is working in a field planting something, but unless he plants a stronger kind of seed this year, the crop will be between 25 to 40 percent lower than a few years ago. The stones of the old church tower are turning to powder and unless the tower is repaired soon, it will fall down.All the death a nd destruction (破坏) in this place is caused by the smoke coming out of factories and poisonous gases from cars and trucks. And yet this silent lake is hundreds of kilometers away from the nearest factory and highway.68. Which season do you think it is?A. Spring.B. Summer.C. Autumn.D. Winter.69. Why are there no animals or birds in or around the lake?A. Because the weather is terribly cold.B. Because the lake is quiet.C. Because the area is seriously polluted.D. Because they have all been killed.70. Why does the farmer have to plant a stronger kind of seed?A. Because the soil is becoming less and less.B. Because few plant life can stand the weather there.C. Because the water in the lake can't be used to irrigate (灌溉) the field.D. Because the soil there is becoming unfit for farming.71. What do you think is the best title of the passage?A. A beautiful place of interest.B. A polluted place.C. A quiet place in Sweden.D. A faraway mountain area.ＥOne of the most difficult things for children to deal with when moving to a new town is leaving their friends and making new ones.We once moved and one of our new neighbors told us about a summer camp at the Recreation Center all the kids went to. My husband and I looked into it and we found it was unbelievably cheap. I had the kids sign up (报名) the next day so that they could know more kids there.Another thing we did was to have them sign up for sports when school started. They were happy to be on teams with new friends they made. This also gave me a chance to meet new people and from them I s ometimes got some useful ideas for my new books.If you're just moving to a new house in the same city you live in now, it won't really be a problem unless your kids are changing schools. If they are, it is a great idea to have them take the address book to school. Thus, your children won't feel “lost” without their old friends.If you're able to, over the summer vacation, try inviting the friend your child misses most to come and visit your new home for a week, or even a few weeks. I know this can be difficult if that child has to fly, but maybe you can work out a plan with the child's parents. Think how happy the kids will be when they meet!72. The author had her kids sign up for the summer camp mainly because _____.A. she could afford the costB. she was asked to do so by her kidsC. it could give her kids a chance to meet more kidsD. it could make the summer holiday not so boring73. What is probably the author?A. A housewife.B. A business woman.C. A teacher.D. A writer.74. What we can't learn from the passage is that ____.A. a summer camp at the Recreation Center was very cheapB. having the kids take part in sports is good for both the author and her kidsC. parents should ask their children not to think of their old friendsD. parents should create more chances for children to make new friends75. The purpose of the passage is to teach parents how to ______ when they move to a new place.A. get used to the new life in a short timeB. help their children make new friends and keep the old onesC. get along with their new neighborsD. help their children get used to the new school life第二节书面表达假如你在暑假期间参加了一个英语夏令营，在该夏令营结束时举行的晚会上，你要对这次夏令营进行简单总结，并表达感谢。

高一英语必修一第二单元测试题及答案

高一英语必修一第二单元测试题及答案（一）词汇练习1．从每题中找出与划线部分意义最近得选项1. The officer commanded his men to fire at the enemies.A. toldB. orderedC. taughtD. asked2. The teacher always sets high standards for his students.A. a test which is difficultB. a level of quality that is considered acceptable.C. an order that must be obeyedD. a plan which is worked out3. The “information” is actually very often “misinformation”.A. almostB. alwaysC. hardlyD. in fact4. The poem is written in Scottish dialect.A. a kind of animalB. a piece of musicC. a form of languageD. a kind of words5. He speaks with a German accent.A. a particular way of pronouncing wordsB. a kind of soundC. a beautiful voiceD. a piece of music6. The Radio City Music Hall is about 4 blocks from here.A. a lot of streetsB. a group of buildingsC. all kinds of parksD. a group of roads7. He refused to recognize that he was wrong.A. knowB. receiveC. anyD. admit8. Please read the directions before you take the medicine.A. introductionsB. instructionsC. rulesD. standards9. The tractor has been damaged by rough usage.A. habitB. customC. treatmentD. operated10. The rapid development of China has surprised all the other countries.A. highB. wholeC. activeD. fast2. 选择填空1. Many famous books, Tom Sawyer and Oliver Twist, have been translated into Chinese.A. for exampleB. such asC. suchD. as2. We are going to the games. Why don’t you come ?A. upB. acrossC. alongD. to3. The missing boys were last seen near the river.A. played asB. played forC. playD. to play4. In the film Martin a man who was later killed by a bad man.A. played asB. played forC. playedD. was played5. We’ll have the job finished, .A. long it takes howeverB. it takes however longC. long however it takesD. however long it takes6. It is generally considered unwise to give a child he or she wants.A. howeverB. whateverC. whicheverD. whenever7. Diet an important part in the treatment.A. takesB. makesC. doesD. plays8. Please where to begin and how to do it.A. explain usB. explain it to usC. explain to usD. explain it us9. We each other the best of luck in the examination.A. hopedB. wantedC. expectedD. wished10. Vegetables many kinds of vitamins and many other useful materials. So we must eat them .A. include; every dayB. contain; everydayC. including; every dayD. contain; every day11. We were stopped from starting out on time the heavy rain.A. becauseB. because ofC. sinceD. for12. He had almost forgotten what he had done.A. particularlyB. speciallyC. especiallyD. entirely13. There is plenty of rain here, there is little in my hometown.A. whenB. whileC. asD. since14. They use their own language to with each other.A. touchB. consultC. feelD. communicate15. ----Why haven’t you bought any butter? ---- I to but I forgot about it.A. likedB. wishedC. meantD. expected16. The problem will at the meeting tomorrow.A. come alongB. come outC. come upD. come about17.I wonder how he that to the teacher.A. dare to sayB. dare sayingC. not dare sayD. dared say18. In some parts of London, missing a bus means for another hour.A. waitingB. to waitC. to be waitingD. wait19. ----How about the number of students the lecture?----- .A. absent from; ManyB. absent at: LittleC. present from; MostD. present at; Big20. I’ve worked with children before, so I know what in my new job.A. expectedB. to expectC. to be expectingD. expects3.从方框中选出何时的词（适当的形式）完成下列句子。

高一数学必修一第二单元测试题及答案

高一数学必修一第二单元测试题及答案一、选择题1.(20 13年高考四川卷)设集合a={1,2,3},集合b={ -2,2},则a∩b等于( b )(a) (b){2}(c){-2,2} (d){-2,1,2,3}解析:a∩b={2},故挑选b.(a){2} (b){0,2}(c){-1,2} (d){-1,0,2}解析:依题意得集合p={-1,0,1},(a)1个 (b)2个 (c)4个 (d)8个4.(年高考全国新课标卷ⅰ)已知集合a={x|x2-2x>0},b={x|-(a)a∩b= (b)a∪b=r解析:a={x|x>2或x<0},∴a∪b=r,故挑选b.5.已知集合m={x ≥0,x∈r},n={y|y=3x2+1,x∈r},则m∩n等于( c )(a) (b){x|x≥1}(c){x|x>1} (d){x|x≥1或x<0}解析:m={x|x≤0或x>1},n={y|y≥1}={x|x≥1}.∴m∩n={x|x>1},故选c.6.设子集a={x + =1},子集b={y - =1},则a∩b等同于( c )(a)[-2,- ] (b)[ ,2](c)[-2,- ]∪[ ,2] (d)[-2,2]解析:集合a表示椭圆上的点的横坐标的取值范围a=[-2,2],集合b表示双曲线上的点的纵坐标的取值范围b=(-∞,- ]∪[ ,+∞),所以a∩b=[-2,- ]∪[ ,2].故选c.二、填空题7.( 年高考上海卷)若集合a={x|2x+1>0},b={x||x-1|<2},则a∩b=.解析:a={x x>- },b={x|-1所以a∩b={x -答案:{x -解析:因为2∈a,所以 <0,即(2a-1)(a- 2)>0,Champsaura>2或a< .①若3∈a,则 <0,即为( 3a-1)(a-3)>0,解得a>3或a< ,①②挑关连得实数a的值域范围就是∪(2,3].答案: ∪(2,3]若a≠0,b=(- ),∴- =-1或- =1,∴a=1或a=-1.所以a=0或a=1或a=-1组成的集合为{-1,0,1}.答案:{-1,0,1}10.已知集合a={x|x2+ x+1=0},若a∩r= ,则实数m的取值范围是.解析:∵a∩r= ,∴a= ,∴δ=( )2-4<0,∴0≤m<4.答案:[0,4)11.已知集合a={x|x2-2x-3>0},b={x|x2+ax+b≤0},若a∪b=r,a∩b={x| 3解析:a={x|x<-1或x>3},∵a∪b=r,a∩b={x|3∴b={x|-1≤x≤4},即方程x2+ax+b=0的两根为x1=-1,x2=4.∴a=-3,b=-4,∴a+b=-7.答案:-7三、解答题12.未知子集a={-4,2a-1,a2},b={a-5,1-a,9},分别谋适宜以下条件的a的值.(1)9∈(a∩b);(2){9}=a∩b.解:(1) ∵9∈(a∩b),∴2a-1= 9或a2=9,∴a=5或a=3或a=-3.当a=5时,a={-4,9,25},b={0,-4,9};当a=3时,a-5=1-a=-2,不满足集合元素的互异性;当a=-3时,a={-4,-7,9},b={-8,4,9},所以a=5或a=-3.(2)由(1)所述,当a=5时,a∩b={-4,9},相左题意,当a=-3时,a∩b={9}.所以a=- 3.13.已知集合a={x|x2-2x-3≤0};b={x|x2-2mx+m2-4≤0,x∈r,m∈r}.(1)若a∩b=[0,3],谋实数m的值;解:由已知得a={x|-1≤x≤3},b={x|m-2≤x≤m+2}.(1)∵a∩b=[0,3],∴∴m=2.∴m-2>3或m+2<-1,即m>5或m<-3.14.设u=r,子集a={x |x2+3x+2=0},b={x|x2+(m+1)x+m=0},若解:a={x|x=-1或x=-2},方程x2+(m+1)x+m=0的根是x1=-1,x2=-m,当-m=-1,即m=1时,b={-1},当-m≠-1,即m≠1时,b={-1,-m},∴-m=-2,即m=2.所以m=1或m=2.集合的三个特性(1)无序性指集合中的元素排列没有顺序，如集合a={1,2}，集合b={2,1}，则集合a=b。

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