2020届高三年级第一轮复习调研测试

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2020届高三语文一轮复习训练卷第3单元《扩展语句,压缩语段类题》一附答案详析

2020届高三语文一轮复习训练卷第三单元《扩展语句，压缩语段类题》一1．人与自然和谐带给我们健康的身心生活，带给我们美的享受，“诗佛”王维参禅悟理，对此有深刻体悟，其诗作如淡雅的水墨画，清新明净。

请你细细体悟以下诗句，将其首联或颔联改写为一段写景文字，展现你眼中的自然之美。

（要求：不少于80个字，合理想象，至少使用一种修辞手法）（6分）积雨辋川庄作积雨空林烟火迟，蒸藜炊黍饷东菑。

漠漠水田飞白鹭，阴阴夏木啭黄鹂。

山中习静观朝槿，松下清斋折露葵。

野老与人争席罢，海鸥何事更相疑。

2．将“雨中、自行车、我”用比喻、排比句式扩写成50字的片断。

（6分）3．请以下面的句子为中心并作为开头，续写一段话，要求语言表达准确、简明，符合逻辑；最少使用一种修辞手法；100字左右。

（6分）艰难困苦，玉汝于成。

____________________________________4．从下列所给词语中任选两个或两个以上，扩写成一段意境优美的文字。

要求：至少运用一种修辞手法并且引用一句诗词，50-70字。

（5分）杨柳阳光微风鸟儿春雨繁花5．根据下面的诗句，描写一个场景。

要求：运用第三人称，有心理描写；语言连贯、准确、生动；不少于80个字。

（6分）浪花愈大，凝立的磐石，在沉默的持守里，快乐也愈大了。

6．阅读下面的文字，完成后面的题目。

（6分）中国新闻出版研究院2018年4月18日在京发布第十五次全国国民阅读调查报告。

报告显示，2017年我国成年国民各种媒介（包括书报刊和数字出版物）的综合阅读率为80.3％，较2016年的79.9％有所提升；数字化阅读方式（网络在线阅读、手机阅读、电子阅读器阅读等）的接触率为73.0％，较2016年上升了4.8个百分点。

成年国民各媒介综合阅读率与数字化阅读方式的接触率保持增长势头。

调查还发现，有声阅读成为国民阅读新的增长点。

2017年，我国成年国民的听书率为22.8％，较2016年的17．0％提高了5.8个百分点；0—17周岁未成年人的听书率也有所增长。

2020届高三语文一轮复习训练卷第15单元《写作题》二附答案详析

2020届高三语文一轮复习训练卷第十五单元《写作题》二1．阅读下面的材料，根据要求写作。

（60分）临近“五四青年节”，学校要组织一次以“感知时代律动，做新时代的青年”为主题的演讲活动，请从下列热词中任选两三个词语，写一篇演讲稿。

热词：中国梦、普通人、幸福、奋斗、道德模范、雷锋精神、工匠精神、实干、创新、享受、佛系青年、网红。

要求：选好热词，使之形成有机关联，选好角度，自拟标题；不要套作，不得抄袭；不少于800字。

2.阅读下面的材料，根据要求写作。

（60分）两名大学生利用长假，脚踩轮滑鞋，历时5天半从山东到北京，完成了一次长达五百多公里的“长途刷街”，实现了一个多年的青春梦。

许多网友为其叫好，“有志者，事竟成！”“为轮滑带来正能量！”而一位交警则指出：“轮滑鞋代步上路，违反了交通法规，是不对的，这种行为一旦被发现，会受到相应处罚。

”生活中，类似的事并不鲜见，“好”的事可能是“不对”事。

而另一面，“对”的事也不一定都是“好”的事，比如符合校规的着装不一定是学生心仪的着装，比如书法家为了写出好字常常打破正确的笔顺以求艺术上更美……不同情况下，不同领域中，人们对“对与好”的理解认识各不相同。

你对此又有着怎样的理解？请结合现实写一篇文章，谈谈你的思考或认识，要求选好角度，确定立意；明确文体，自拟标题；不要套作，不得抄袭；不少于800字。

3.阅读下面的材料，根据要求写作。

（60分）学生发展核心素养，主要指学生应具备的，能够适应终身发展和社会发展需要的必备品格和关键能力。

综合表现为人文底蕴、科学精神、学会学习、健康生活、责任担当、实践创新六大素养，具体细化为国家认同等十八个基本要点。

请从“六大素养”中选择两或三个关键词来呈现你所理解的高三学生更应重视更应具备的核心素养。

要求选好关键词，使之形成有机的关联；联系实际，选好角度；明确文体，自拟标题；不要套作，不得抄袭；不少于800字。

4．阅读下面的材料，根据要求写作。

山东省济南市历城第二中学2020届高三物理上学期一轮复习验收试题[含答案]

山东省济南市历城第二中学2020届高三物理上学期一轮复习验收试题考生注意：1.本试卷分第I卷（选择题）和第II卷（非选择题）两部分，满分100分。

考试时间90分钟。

2.试卷书写规范工整，卷面整洁清楚，酌情加减1-2分，并计入总分。

第I卷选择题（共40分）一、单选题（每题只有一个正确选项，共8道小题，每题3分，共24分）1．如图所示为运动员跳高时的精彩瞬间，下列说法正确的是A．运动员在最高点处于平衡状态B．运动员在下降过程中处于超重状态C．运动员起跳以后在上升过程中处于失重状态D．运动员起跳时地面对他的支持力等于他所受的重力2．一个小孩从滑梯上滑下的运动可看做匀加速直线运动。

第一次小孩单独从滑梯上滑下，加速度为a1。

第二次小孩抱上一只小狗后再从滑梯上滑下（小狗不与滑梯接触），加速度为a2。

则( )A．a1<a2B．a1>a2C．a1=a2D．无法判断3．如图所示，在光滑水平面上有一质量为m1的足够长的木板，其上叠放一质量为m2的木块。

假定木块和木板之间的最大静摩擦力和滑动摩擦力相等。

现给木块施加一随时间t增大的水平力F=kt（k是常数），木板和木块加速度的大小分别为a1和a2。

下列反映a1和a2变化的图线中正确的是（）A．B．C．D．4．叠放在水平地面上的四个完全相同的排球如图所示，质量均为m，相互接触，球与地面间的动摩擦因数均为μ，则：A．上方球与下方3个球间均没有弹力B．下方三个球与水平地面间均没有摩擦力C．水平地面对下方三个球的支持力均为43 mgD．水平地面对下方三个球的摩擦力均为43mg5．一列简谐横波沿x轴传播．t=0时刻的波形如图甲所示，此时质点P正沿y轴负方向运动，其振动图像如图乙所示．则该波的传播方向和波速分别是A．沿x轴负方向，60m/s B．沿x轴正方向，60m/sC．沿x轴负方向，30m/s D．沿x轴正方向，30m/s6．如图所示，空间中存在着由一固定的负点电荷Q(图中未画出)产生的电场．另一正点电荷q仅在电场力作用下沿曲线MN运动，在M点的速度大小为v0，方向沿MP方向，到达N点时速度大小为v，且v< v0，则( )A．Q一定在虚线MP下方B．M点的电势比N点的电势高C．q在M点的电势能比在N点的电势能小D．q在M点的加速度比在N点的加速度小7．如图所示，理想变压器的原线圈接有电压为U的正弦交流电源，输出电压的有效值恒定。

江苏省南通、泰州市2020届高三第一次调研测试数学试题含附加题 Word版含答案

南通市、泰州市2020届高三上学期期末联考数学试卷2020.1.14一、填空题1.已知集合 A ＝ {-1，0，2}， B ＝ {-1，1，2}，则 A ∩B =________.2.已知复数 z 满足(1+ i ) z ＝ 2i ，其中i 是虚数单位，则 z 的模为_______.3.某校高三数学组有 5名党员教师，他们一天中在“学习强国”平台上的学习积分依次为 35，35，41，38，51，则这5 名党员教师学习积分的平均值为_______.4.根据如图所示的伪代码，输出的 a 的值为_______.5.已知等差数列{a n } 的公差 d 不为 0 ，且 a 1，a 2，a 4 成等比数列，则1a d的值为_____. 6.将一枚质地均匀的硬币先后抛掷 3 次，则恰好出现 2 次正面向上的概率为______.7.在正三棱柱 ABC - A 1B 1C 1 中， AA 1＝AB ＝2 ，则三枝锥 A 1 - BB 1C 1 的体积为______.8.已如函数.若当 x ＝6π时，函数 f (x ) 取得最大值，则ω 的最小值为______.9. 已知函数 f (x ) ＝ (m - 2)x 2 + (m - 8)x (m ∈R ) 是奇函数 . 若对于任意的 x ∈ R ，关于 x 的不等式f ( x 2 +1) < f (a ) 恒成立，则实数 a 的取值范围是______.10.在平面直角坐标系 xOy 中，已知点 A ，B 分别在双曲线C : x 2 - y 2 ＝1 的两条渐近线上，且双曲线C 经过线段 AB 的中点.若点 A 的横坐标为 2 ，则点 B 的横坐标为______.11.尽管目前人类还无法准确预报地震，但科学家通过研究，已经对地震有所了解，例如，地震时释放出的能量 E (单位:焦耳)与地震里氏震级 M 之间的关系为 lgE ＝ 4.8 +1.5M . 2008 年 5 月汶川发生里氏8.0 级地震，它释放出来的能量是 2019 年 6 月四川长宁发生里氏 6.0 级地震释放出来能量的______倍.12. 已知△ABC 的面积为 3 ，且 AB ＝ AC .若2CD DA =，则 BD 的最小值为______.13.在平面直角坐标系 xOy 中，已知圆C 1 : x 2 + y 2 ＝ 8 与圆C 2 : x 2 + y 2 + 2x + y -a ＝ 0 相交于 A ，B 两点.若圆C 1 上存在点 P ，使得△ABP 为等腰直角三角形，则实数 a 的值组成的集合为______. 14.已知函数若关于 x 的方程 f 2 ( x ) + 2af (x )+1- a 2 ＝ 0 有五个不相等的实数根，则实数a 的取值范围是______.二、解答题15. (本小题满分14 分)如图，在三棱锥P -ABC 中，P A ⊥平面ABC ，PC ⊥AB ，D，E 分别为BC，AC 的中点。

四川省各地2020届高三一轮复习9月英语试卷精选汇编：完形填空

完形填空四川省成都市2020届高中毕业班摸底测试第一节完形填空（共20小题；每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

Everybody seems to pay more attention to my little sister Lisa. I’ve 41 enough of this big-sister thing!So I decide to 42 , with my favorite toys and other 43 like clothes. Mother 44 my running away. However, she’s not as upset as she 45 be, “Are you going to Grandma’s?” I can’t believe she can even 46 this out. She’s like a witch!I don’t 47 her and go out. So 48 on my leaving, I’m unaware Mother is 49 me. Finally I get to Grandma’s. 50 I even knock, the door opens. I realize Mother has 51 ahead.Mother comes in and sits down, patting her thigh (大腿), “Come here.” I don’t want to, but I’m hot and tired, so I 52 her thigh. She pushes my hair behind my ear and asks 53 , “Dear, why have you left?” And it all comes out: “It’s 54 and all the time with Lisa, I get into trouble...”Taking my face in her hands, Mum says, “I don’t want you to be so 55 . If it’s hard for you, I’ll call the orphanage and send her away tomorrow.” I start to 56 and I beg her, “No. Don’t send her away!” Seeming 57 , Mother agrees.58 , whenever we have a(n) 59 , if I say, “Mum, Lisa’s being mean to me!” Mum smiles, “You had your 60 .”41. A. seen B. had C. done D. thought42. A. argue B. move C. talk D. leave43. A. necessities B. facilities C. valuables D. tools44. A. monitors B. enjoys C. ignores D. notices45. A. could B. must C. should D. would46. A. put B. take C. bring D. figure47. A. forgive B. answer C. watch D. accept48. A. keen B. dependent C. focused D. impressed49. A. seeking B. following C. missing D. scolding50. A. Before B. When C. Until D. After51. A. called B. arrived C. known D. asked52. A. push away B. fall off C. get on D. hold onto53. A. quickly B. impatiently C. unhappily D. gently54. A. unimportant B. improper C. unfair D. impolite55. A. ridiculous B. sad C. unconfident D. nervous56. A. ridiculous B. laugh C. nod D. jump57. A. puzzled B. unsatisfied C. exhausted D. unwilling58. A. Afterwards B. Instead C. Frankly D. Generally59. A. discussion B. plan C. quarrel D. choice60. A. life B. chance C. experience D. fortune第三部分第一节完形填空（满分30分）41～45 BDADC46～50 DBCBA51～55 ACDCB56～60 ADACB西南名校联盟2020届高考适应性月考卷（二）英语试题第三部分语言知识运用（共两节，满分45分）第一节（共20小题；每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

2020届单招联盟一模数学答案

绝密★前秘密★启用后江苏省职业学校对口单招联盟 2020届高三年级第一轮复习调研测试数学试卷参考答案及评分标准一、单项选择题（本大题共10小题，每小题4分，共40分．）1．C 2．A 3．B 4．B 5．A 6．D 7．B 8．B 9．C 10．C 二、填空题（本大题共5小题，每小题4分，共20分） 11．I S S += 12．-2 13．4 14． 433 15． )31,0()1,(⋃--∞ 三、解答题（本大题共8小题，共90分）16.解：（1）Θ6)2(,352221--=--=i m m z i m m zi m m m m z z )32()65(2221--+--=+∴ Θππ<+<)arg(221z z21z z +∴对应点在第二象限⎪⎩⎪⎨⎧>--<--∴03206522m m m m 解得：63<<m ………………………………………（4分）（2）0)(log 2<-x x m Θ1log )(log 2m m x x <-∴又63<<m Θ102<-<∴x x解得：0251<<-x 或2511+<<x原不等式的解集为∴Y )0,251(-)251,1(+………………………………（8分）17.解：（1）.,01101无解时，当⎩⎨⎧=+-=+>-b a b a a 得时，当,101001⎩⎨⎧-=+=+<<-b a b a a ⎪⎩⎪⎨⎧-==221b a所以23-=+b a ………………………………（5分）（2）由题意知2)(=T x g 的周期 )21()2227()27(-=⨯-=g g g 又因为是奇函数)(x g )21()21()21(f g g -=-=-2)21()21(21-=f 又所以224222)27(-=-=g ………………………………（10分）18.解：（1）由621=+a a ，2443=+a a 得42=q ，因为数列}{n a 的各项均为正数，所以2=q ，所以nn a 2=；………………………………（4分）（2）n a b n n ==2log所以)()(21212211n n n n n b b b a a a b a b a b a G +++++++=++++++=ΛΛΛ2222)1(21)21(221n n n n n n ++-=++--=+………………………………（8分）（3）22nn T n +=，所以)111(2212+-=+=n n n n T n 所以12)111(2)1113121211(2+=+-=+-++-+-=n nn n n G n Λ.………………（12分）19.（1）记事件A 为“方程2220x ax b ++=有实根”，当a ≥0，b ≥0时，方程2220x ax b ++=有实根的充要条件为a ≥b基本事件共有12个：(0,0)，(0,1)，(0,2)，(1,0)，(1,1)，(1,2)，(2,0)，(2,1)，(2,2)，(3,0)，(3,1)，(3,2)，其中第一个数表示a 的取值，第二个数表示b 的取值．事件A 中包含9个基本事件，事件A 发生的概率为P (A )＝912＝34．………………（6分）（2）画草图易知区域D 是边长为2的正方形，到原点的距离大于2的点在以原点为圆心，2为半径的圆的外部，所以所求概率4422224122ππ-=⨯⨯⨯-⨯=P ．…………（12分）212sin 2322cos 121cos sin 3sin )(1.202-+-=-+=x x x x x x f Θ）解（)62sin(2cos 212sin 23π-=-=x x x ………………（2分）为减函数时当)(,2326222x f Z k k x k ∈+≤-≤+πππππ为减函数时即)(,653x f Z k k x k ∈+≤≤+ππππ．………………（4分）又Θ⎥⎦⎤⎢⎣⎡∈32,0πx ，所以⎥⎦⎤⎢⎣⎡323)(ππ，的单调减区间为x f ………………（6分）(2)1)(=A f Θ 1)62sin(=-∴πA3π=∴A ．………………（8分）32,4==∆ABC S c Θ3sin 42132sin 21π⨯⨯==b A bc S 得：由面积公式解得b=2由余弦定理得123cos 42242222=⨯⨯⨯-+=πa 32=∴a ．………………（10分）222b a c +=(或用余弦定理求也行)2π=∴C ……………（12分）21.解：设购买桌子x 张，椅子y 张，其总数为z ，则根据题意得目标函数为y x z +=max约束条件为为⎪⎪⎩⎪⎪⎨⎧≥≥≤+≤≤0,020*******.1y x y x x y y x ，………………（3分）作出可行域如图所示……………（6分）作直线x+y=0，并平移当直线经过点A 时，z 取得最大值Oyx1.5x-y=0 50x+20y=2000x-y=0A由⎩⎨⎧=+=200020505.1y x x y 解得⎩⎨⎧==5.3725y x ，………………………………（8分）因为x ，y 为整数，所以当x=25，y=37时，z 取得最大值，623725max =+=z 答：购买桌子25张，椅子37张.……………………（10分）22.（1）由年生产量x 件，按利润的计算公式，则生产B A ,两种产品的年利润21,y y 分别为：),2000(20)10()20(101N x x x m mx x y ∈≤≤--=+-=且 401005.005.0)840(18222-+-=-+-=x x x x x y=),1200(460)100(05.02N x x x ∈≤≤+--且……………………（4分）（2）因为.0-10,86>≤≤m m 所以所以.20)10(1为增函数--=x m y 又N x x ∈≤≤,2000产品有最大利润时，生产所以A x 200=……………………（6分）N x x x y ∈≤≤+--=且,1200,460)100(05.022所以当100=x ，生产B 产品的最大利润为460万美元.……………………（8分）现在研究成产哪种产品年利润最大，为此我们作差比较： m m y y 2001520460)2001980()()(max 2max 1-=--=-所以当;200)()(6.76max 2max 1件可获最大年利润产品，投资生产时，A y y m ><≤ ;)()(6.7max 2max 1产品均可获最大年利润产品与，投资生产时，当B A y y m == ;100)()(86.7max 2max 1件可获最大年利润产品，投资生产时，当B y y m <≤<……………………（12分）)(200-198020-200-10万美元）（m m =⨯23.解：（1）因为椭圆E ：x 2a 2＋y 2b 2＝1(a>b>0)的离心率为22，所以a 2＝2c 2，b ＝c ，所以直线DB 的方程为y ＝－22x ＋b ，又O 到直线BD 的距离为63，所以b 1＋12＝63，所以b ＝1，a ＝ 2.所以椭圆E 的方程为x 22＋y 2＝1.……………………（4分）（2）当2=t 时，直线PA 的方程为)2(22+=x y 与椭圆方程组成方程组得⎪⎪⎩⎪⎪⎨⎧=++=12)2(2222y x x y 解得点C （0,1）设圆的方程为022=++++F Ey Dx y x ，代入三点坐标得⎪⎩⎪⎨⎧=++++=++=++022*******F E D F D F E 解得⎪⎪⎩⎪⎪⎨⎧=-=-=12223F E D 所以圆的方程为01222322=+--+y x y x ……………………（8分）（3）P(2，t)，t>0，直线PA 的方程为y ＝t 22(x ＋2)，由⎩⎨⎧x 22＋y 2＝1，y ＝t22（x ＋2），整理得(4＋t 2)x 2＋22t 2x ＋2t 2－8＝0，解得x C ＝42－2t 24＋t 2，则点C 的坐标是⎝ ⎛⎭⎪⎫42－2t 24＋t 2，4t 4＋t 2，因为△ABC的面积等于四边形OBPC的面积，所以△AOC的面积等于△BPC的面积，S△AOC＝12×2×4t4＋t2＝22t4＋t2，S△PBC＝12×t×⎝⎛⎭⎪⎫2－42－2t24＋t2＝2t34＋t2，则2t34＋t2＝22t4＋t2，解得t＝ 2.所以直线PA的方程为x－2y＋2＝0.……………………（14分）。

四川省各地2020届高三一轮复习9月英语试卷精选汇编：语法填空含答案

语法填空四川省成都市2020届高中毕业班摸底测试第二节（共10小题；每小题1.5分，满分15分）阅读下面短文在空白处填入1个适当的单词或括号内单词的正确形式。

Students at a primary school in Hangzhou had their first class 61 March 1st on movable type. This is 62 ancient Chinese printing system.The West Lake Primary School in Zhejiang Province has introduced the course in the new term. An expert in Chinese characters culture has been invited to the campus, 63 major responsibility is to teach students how 64 (use) the ancient printing technology. Students attend lectures on the history of movable type along with 65 (interest) classes on typesetting and printing. They then print their own document, 66 (apply) the knowledge they’ve learned. One student printed her 67 (new) written essay “Whethe r the traditional red envelopes kids receive belong to them or their parents?”68 (know) as one of the four great inventions of ancient China, movable type printing69 (invent) by Bi Sheng in the 1040s during the Song Dynasty, and it is the wor ld’s first system of movable type printing.The school said the course is aimed at improving the students’ awareness of Chinese characters and their 70 (appreciate) of Chinese culture.第二节（满分15分）61. on 62. an 63. whose 64. to use 65. interesting66. applying 67. newly 68. Known 69. was invented 70.appreciation平分标准：61—70小题，每小题1.5分。

江苏省职业学校对口单招联盟2020届高三年级第一轮复习调研测试市场营销专业综合理论试卷附答案答题纸

江苏省职业学校对口单招联盟2020届高三年级第一轮复习调研测试市场营销专业综合理论试卷注意事项1.本试卷共9页，包含选择题（第1题至第61题，其中第24题至第61题为判断题，共61题）、非选择题（第62题至第101题，共40题）。

本卷满分为300分，考试时间为150分钟。

考试结束后，请将本试卷和答题卡一并交回。

2.答题卡包括答题卡I（作答第1题至第96题）、答题卡II（作答第97题至101题）。

3.答题前，请务必将自己的姓名、考试证号用0.5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置。

4.请认真核对监考员在答题卡I、答题卡II上所黏贴的条形码上的姓名、考试证号与您本人是否相符。

5.作答选择题（第1题至第61题），必须用2B.铅笔将答题卡上对应选项的方框填满涂黑；如需改动，请用橡皮擦干净后，再选涂其它答案。

作答非选择题，必须用0.5毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其它位置作答一律无效。

一.单项选择题（本大题共23小题，每小题2分，共46分。

每小题只有一个正确答案，请按要求，将正确答案的标号在答题卡上涂黑）1.会计核算过程中，会计处理方法前后各期（）A.应当一致，不得随意变更B.可以变动，但须经过批准C.可以随意变动D.应当一致，不得变动2.企业在记录财务费用时，通常所采用的的明细账格式是（）A.多栏式明细账B.卡片式明细账C.数量金额式明细账D.横线登记式明细账3.如发现原始凭证上金额有错误，应当A.由会计人员直接更正并签名B.直接由经办人员更正并签名C.由出具单位更正并加盖公章D.由出具单位重开，不得在原始凭证上更正4.按照账户的结构和用途分类，利润分配属于（）A.集合分配账户B.财务成果账户C.损益类账户D.调整账户5.以下会计资料中，属于定期保管的是（）A.会计档案保管清册B.会计档案销毁清册C.会计档案移交清册D.年报6.某企业仓库本期期末盘亏原材料原因已经查明，属于自然灾害造成的，经批准后，应该转入（）A.借：营业外支出B.借：管理费用C.贷：营业外支出D.贷：管理费用7.空调夏季热销，冬季滞销，这种需求属于（）A.潜在需求B.饱和需求C.不规则需求D.过度需求8.“我卖什么，顾客就买什么”，属于（）观念A.生产观念B.推销观念C.产品观念D.市场营销观念9.生产家用电器的海尔公司和万众房地产公司是（）A.品牌竞争者B.平行竞争者C.愿望竞争者D.产品形式竞争者10.某工程技术人员协助决策者确定采购设备的规格、型号等，该技术人员在此购买决策中扮演的角色是（）A.采购者B.控制者C.使用者D.影响者11.某酒类企业推出无醇啤酒，用来满足那些想喝啤酒但又想免受酒精困扰的消费者需求这种市场定位属于（）A.产品特色定位B.顾客利益定位C.使用者定位D.使用场合定位12.国内家电生产企业的主要产品已进入产品生命周期的成熟期，他们选择的目标市场策略应当是（）A.大量市场营销B.差异性市场营销C.集中性市场营销D.无差异性市场营销13.产品在畅销阶段时，企业的营销目标是（）A.产品尽快投产上市B.提高市场占有率C.建立知名度，争取试用D.保持市场占有率14.某公司生产椅子，单位产品成本10元，产品售价15元，则该产品的成本加成率（）A.33.3%B.50%C.70%D.100%15.企业选定一些中心城市统一定价，再按最近城市距离顾客的距离收取运费为（）A.统一交货定价B.区域定价C.基点定价D.免收运费定价16.行业吸引力和业务力量都处在中等水平的战略业务单位在多因素投资组合中所处的位置是（）A.黄色地带B.红色地带C.绿色地带D.白色地带17.星巴克在当前的市场区域开设新店，方便更多的顾客惠顾，它实施的是（）A.市场开发B.产品开发C.市场渗透D.多角化经营18.产品质量检验机构必须经（）人民政府产品质量监督管理部门或其授权的部门考核合格后，方可承担产品质量检验工作。

机械试卷

江苏省职业学校对口单招联盟2020届高三年级第一轮复习调研测试机械专业综合理论试卷注意事项：1．本试卷分为第Ⅰ卷(客观题)和第Ⅱ卷(主观题)两部分。

两卷满分300分。

考试时间150分钟。

2.答题前，考生务必将自己的姓名、学校、考试号用0.5mm黑色签字笔填写在答题卡规定区域。

3.选择题作答：用2B铅笔将答题卡上对应选项的方框涂黑。

4.非选择题作答：0.5mm黑色签字笔直接答在相应题号的答题区域内，否则无效。

第Ⅰ卷(共90分)一、单项选择题(本大题共30小题，每小题3分，共90分。

将正确答案填写在答题卡相应的位置上)1．用牌号为ZG270-500材料制成一直径为10mm的标准长试样做拉伸试验，指针不动或回摆时的拉力为▲。

A．21.2KN B．27KN C．50KN D． 75.25KN2．下列金属中与γ—Fe的晶格类型相同是▲。

A．Mg B．Cu C．Cr D．Zn3．结晶过程恒温的铁碳合金含碳量是▲。

A．0.25% B．0.8% C．1.8% D．4.3%４.钢的理想淬火冷却速度是▲。

A．慢－快－慢 B．快－慢－快 C．慢－快－快 D．慢－慢－快5.下列金属材料中，最适宜用来制造精度高、结构复杂量具的材料是▲。

A．45Mn2 B．20CrMn2 C．CrWMn D．Cr126．浇注系统中，调节熔融金属流入型腔的速度和压力的部分是▲。

A．浇口杯 B．直浇道 C．横浇道D．内浇道7．锻造时，不．可以采用直接加热工艺的材料是▲。

A.低碳钢B.中碳钢C.高合金钢D.低合金钢8．测量主偏角K r的基准坐标平面是▲。

A．基面 B．主切削平面 C．正交平面 D．假定工作平面9. 金属切削过程中，对刀具耐用度的影响最大的切削用量是▲。

A.切削深度B.进给量C.温度D.切削速度10．车床丝杆螺距为6mm ，可以用提合开合螺母方法车削螺纹而不会产生乱牙的螺距是 ▲ 。

A. 0.45mmB. 1.25 mmC. 0.75mmD. 4 mm11.机械加工工艺过程的基本组成是 ▲ 。

2020届高三一轮复习：1-7 Unit 1 Living well单元知识检测

about my carelessness.
答案:1.adapting 2.to have stayed 3.out 4.annoyed
5.With support and
( encourage) from their parents,students
made great progress.
6.My grandfather often goes to the countryside,because he thinks it
Ⅲ.微写作
1.托马斯的左腿由于事故变得残疾了,一开始,这让他很恼怒。 .
2.尽管他残疾了,但他是一位有抱负的男孩,他没有闲坐着为自己感到惋惜。
答案:1.Thomas was disabled with his left leg due to an accident, which made him annoyed at the beginning. 2.Disabled as he was/Though he was disabled,he was an ambitious boy and didn’t sit around feeling sorry for himself.
Ⅱ.用本单元所学短语完成句子
1.Clean drinking water
(无法获取)1.1
billion people.
2.In general,people don’t like
.
(被捉弄).
3.I was
(上气不接下气)when I climbed up to the
top of the mountain.
My life improved remarkably when I discovered art.The art world gave me a chance

2020届高三语文一轮复习训练卷第4单元《选用仿用变换句式题》一附答案详析

2020届高三语文一轮复习训练卷第四单元《选用仿用变换句式题》一1．为上联“抚琴弹落西江月”选择下联，最适合的下联是（3分）（）A. 把酒醉归东山下B. 横笛吹升东方红C. 落日归来老苏仙D. 击剑振飞金凤钩2．填入下面横线处的句子，与上下文衔接最恰当的一项是（3分）（）月光是引人清心的，因此在中国旧诗词里不知有多少关于月的吟咏，像“中庭地白树栖鸦，冷露无声湿桂花”，像“长安一片月，万户捣衣声”，像“暮云收尽溢清寒，银汉无声转玉盘”但那多是赞秋月的。

而今是冬月，没有_________________，没有___________________，但空旷、辽阔。

A. 虫的吟唱，花的清香/浓浓的树影，萧瑟的凉风B. 花的清香，虫的吟唱/浓浓的树影，淡淡的凉风C. 虫的吟唱，淡淡的凉风/花的清香，浓浓的树影D. 花的清香，浓浓的树影/虫的吟唱，萧瑟的凉风3．李伯伯的亲友甲要结婚，亲友乙要生孩子，李伯伯打算各送他们两副对联。

请你帮李伯伯从下面的对联中作出恰当的选择。

（只填序号）（4分）①杏花雨润韶华丽，椿树云深淑景长。

②春暖花开偕彩凤，冬寒雪飘获石麟。

③画屏射雀成双璧，玉树鸣鸾庆百年。

④诗歌杜甫其三句，乐奏周南第一章。

⑤水如碧玉山如黛，凤有高梧鹤有松。

⑥绕庭已喜临风玉，照室还欣入掌珠。

送给甲的对联是____和____，送给乙的对联是____和____。

4. 阅读下面论述性语段，选出能更好地完成其论证的一项是（3分）( ）人类学家坚定地断言：文化仅当它是独立的而非依赖的，才能有所发展。

也就是说，只有当来自于它外部的压力被来自于它内部的首创精神所取代的时候，它才能有所发展。

换句话说，只有民族文化才是推动文化发展的动力，非主体文化可以提供有价值的建议，但是，任何把外来文化的观点强加给民族文化的做法，都会威胁它的独立和发展。

同样，如果我们把每一所单独的学校视为一种独立的文化的话，那么，教育进步的关键是：A. 外来的各种有利或有害的因素必须被阻止参与学校的发展之中。

2020届高三语文一轮复习训练卷第14单元《古文诗词名篇名句默写题》一附答案详析

2020届高三语文一轮复习训练卷第十四单元《古文诗词名篇名句默写题》一1．补写出下列句子中的空缺部分。

（6分）（1）老子在《道德经》说“千里之行”，要“始于足下”，荀子的《劝学》中，也有以“千里”为目标，从反面强调“积累”重要性的名言：“，。

”（2）天宝三载，李白受权臣谗毁排挤被赐金放还，离开长安之际，朋友不惜重金为其饯行，《行路难》中“，”写出宴会盛况；而李白面对奢华盛宴却“”，拔剑四顾，心绪茫然。

（3）辛弃疾《永遇乐·京口北固亭怀古》一词中表达英雄业绩会随时光流逝的一句是“ _ ”。

2. 补写出下列句子中的空缺部分。

（5分）（1）柳宗元的《小石潭记》，运用动静结合的手法，对潭中鱼进行了生动细致的描写，静态时，呆呆地静止不动；动态时，“____________，____________”。

（2）在《离骚》中屈原不被君主接纳遭受指责后，他选择了“____________，____________，____________”以服饰为喻来表达自己保持高洁的心志。

3. 补写出下列句子中的空缺部分。

（5分）（1）《登飞来峰》中，“_______________，_______________”两句，表现了诗人无惧奸邪的气概和高瞻远瞩的胸襟，也蕴含着“站得高才能看的远”的哲理。

（2）欧阳修在《醉翁亭记》中，用排偶句“_______________，_______________”，描绘出两幅对比鲜明的画面，准确而生动地写出了琅琊山有晦有明、交替变化的朝暮景象。

（3）庄子在《逍遥游》一文中，借助“大鹏直上”表达了自己的志向，其中“_______________”一句后来演变成了一个成语“扶摇直上”。

4. 补写出下列句子中的空缺部分。

（5分）（1）苏轼在《赤壁赋》中，借“客”之口，写曹操率领军队浩浩荡荡的从江陵沿江而下，战船千里相接，“______________，_______________，_____________”，发出“固一世之雄也”的感慨。

江苏省石庄高级中学2020届高三一轮复习检测英语试题 Word版含答案

2020江苏省石庄高级中学高三一轮复习英语检测题一、听力（英语周报16期）二、单选题1.Though it is 30 years ___ we last met，I still remember the scene ___ we got separated on arainy day.A. before；whereB. before；whichC. since；whenD. since；where2.The publication of Great Expectations，which _____both widely reviewed and highly praised,strengthened Dickens′ status as a leading novelist．A. isB. areC. wasD. were3.At first Robert wouldn't let his daughter go diving, but eventually he ______ as she was soconfident about her skills.A. gave inB. dressed upC. broke inD. turned up4.Working with the medical team in Africa has______the best in her as a doctor.A. held outB. brought outC. picked outD. given out5.—What does the stuff on your T-shirt mean？6.—It'snothing．Just something ________．A. asclearasdayB. offthe top of my headC. under my noseD. beyond my wildest dreams7.If they continue abusing drugs, in the end drug users will find themselves trapped in a prison________ they cannot escape.A. to whichB. from whichC. by whichD. in which8.Determining where we are_____our surroundings remains an essential skill for our survival．A. in contrast toB. in defense ofC. inface ofD. in relation to9.Is this TV set ________ you wish to have ________?A. the one; repairedB. which; it repairedC. the one; it repairedD. which; repaired10.Only five years after Steve Jobs' death, smart-phones defeated _______PCs in sales．A. controversialB. contradictoryC. confidentialD. conventional11.It took him a long time to ______ the skills he needed to become a good dancer.A. displayB. acquireC. teachD. test12.My washing machine_________this week, so I have to wash my clothes by hand．A. was repairedB. is repairedC. is being repairedD. has been repaired13._____ not for the support of the teachers,the student could not overcome her difficulty．A. It wereB. Were itC. It wasD. Was it14.He hurried home，never once looking back to see if he_________．A. was being followedB. was followingC. had been followedD. followed15.Self-driving is an area _______ China and the rest of the world are on the same starting line.A. thatB. whereC. whichD. when16.This is ________ my father has taught me—to always face difficulties and hope for the best.A. howB. whichC. thatD. what17.The hospital has recently obtained new medical equipment，_____ more patients to be treated．（）A. being allowedB. allowingC. having allowedD. allowed18.Many Chinese brands, _____their reputations over centuries,are facing new challenges from the modern market．A. having developedB. being developedC. developedD. developing19.I was sent to the village last month to see how the development plan ________ in the pasttwo years.A. had been carried outB. would be carried outC. is being carried outD. has been carried put20.The disappearance of dinosaurs is not necessarily caused by astronomical incidents．But _________explanations are hard to find．（）A. alternativeB. aggressiveC. ambiguousD. apparent21.She and her family bicycle to work, __________ helps them keep fit.A. whichB. whoC. asD. that三、完形填空Around twenty years ago I was living in York. (38) I had a lot of experience and a Master's degree，I could not find (39) work.I was (40) a school bus to make ends meet and (41)with a friend of mine，for I had lost my flat.I had (42) five interviews（面试）with a company and one day between bus runs they called to say I did not (43) the job.“Why has my life become so (44)？” I thought painfully.As I pulled the bus over to (45) a little girl，she handed me an earring (46) I should keep it (47) somebody claimed（认领）it.The earring was painted black and said “BE HAPPY”．At first I got angry.Then it (48) me—I had been giving all of my (49) to what was going wrong with my (50) rather than what was right！I decided then and there to make a (51) of fifty things I was happy ter，I decided to (52) more things to the list.That night there was a phone call for (53) from a lady who was a director at a large (54).She asked me if I would (55) a one-day lecture on stress（压力）management to 200 medical workers.I said yes.My (56)there went very well，and before long I got a well-paid job.To this day I know that it was because I changed my way of (57)that I completely changed my life.22. A. As B. Though C. If D. When23. A. successful B. extra C. satisfying D. convenient24. A. driving B. repairing C. taking D. designing25. A. working B. travelling C. discussing D. living26. A. prepared for B. attended C. asked for D. held27. A. lose B. like C. find D. get28. A. hard B. busy C. serious D. short29. A. wave at B. drop off C. call on D. look for30. A. ordering B. promising C. saying D. showing31. A. in case B. or else C. as if D. now that32. A. hurt B. hit C. caught D. moved33. A. feelings B. attention C. strength D. interests34. A. opinions B. education C. experiences D. life35. A. list B. book C. check D. copy36. A. connect B. turn C. keep D. add37. A. her B. a passenger C. me D. my friend38. A. hospital B. factory C. restaurant D. hotel39. A. listen to B. review C. give D. talk about40. A. plan B. choice C. day D. tour41. A. operation B. speaking C. employment D. thinking四、阅读理解APacific Science Center Guide◆Visit Pacific Science Center's StoreDon't forget to stop by Pacific Science Center's Store while you are here to pick up a wonderful science activity or souvenir to remember your visit. The store is located upstairs in Building 3 right next to the Laser Dome.◆HungryOur exhibits will feed your mind but what about your body? Our café offers a complete menu of lunch and snack options, in addition to seasonal specials. The café is located upstairs in Building 1 and is open daily until one hour before Pacific Science Center closes.◆Rental InformationLockers are available to store any belongings during your visit. The lockers are located in Building 1 near the Information Desk and in Building 3. Pushchairs and wheelchairs are available to rent at the Information Desk and Denny Way entrance. ID required.◆Support Pacific Science CenterSince 1962, Pacific Science Center has been inspiring a passion for discovery and lifelong learning in science, math and technology. Today, Pacific Science Center serves more than 1.3million people a year and brings inquiry-based science education to classrooms and community events all over Washington State. It's an amazing accomplishment and one wecannot achieve without generous support from individuals, corporations, and other social organizations. Visit to find various ways you can support Pacific Science Center.42.Where can you buy a souvenir at Pacific Science Center?A. In Building 1.B. In Building 3.C. At the Laser Dome.D. At the Denny Way entrance.43.What does Pacific Science Center do for schools?A. Train science teachers.B. Distribute science books.C. Inspire scientific research.D. Take science to the classroom.44.What is the purpose of the last part of the text?A. To encourage donations (捐赠).B. To advertise coming events.C. To introduce special exhibits.D. To tell about the Center's history.BI first met Paul Newman in 1968, when George Roy Hill, the director of Butch Cassidy and the Sundance Kid, introduced us in New York City. When the studio didn't want me for the film—it wanted somebody as well-known as Paul—he stood for me. I don't know how many people would have done that; they would have listened to their agents or the studio powers.The friendship that grew out of the experience of making that film and The Sting four years later had its root in the fact that although there was an age difference, we both came from a tradition of theater and live TV. We were respectful of craft (技艺) and focused on digging into the characters we were going to play. Both of us had the qualities and virtues that are typical of American actors: humorous, aggressive, and making fun of each other—but always with an underlying affection. Those were also at the core (核心) of our relationship off the screen.We shared the belief that if you're fortunate enough to have success, you should put something back—he with his Newman's Own food and his Hole in the Wall camps for kids whoare seriously ill, and me with Sundance and the institute and the festival. Paul and I didn't see each other all that regularly, but sharing that brought us together. We supported each other financially and by showing up at events.I last saw him a few months ago. He'd been in and out of the hospital. He and I both knew what the deal was, and we didn't talk about it. Ours was a relationship that didn't need a lot of words.45.Why was the studio unwilling to give the role to the author at first?A. Paul Newman wanted it.B. The studio powers didn't like his agent.C. He wasn't famous enough.D. The director recommended someone else.46.Why did Paul and the author have a lasting friendship?A. They were of the same age.B. They worked in the same theater.C. They were both good actors.D. They had similar characteristics.47.What does the underlined word "that" in paragraph 3 refer to?A. Their belief.B. Their care for children.C. Their success.D. Their support for each other.48.What is the author's purpose in writing the text?A. To show his love of films.B. To remember a friend.C. To introduce a new movie.D. To share his acting experience.CAfter years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.Gray wolves once were seen here and there in the Yellowstone area and much of thecontinental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around.The disappearance of the wolves had many unexpected results. Deer and elk populations —major food sources(来源) for the wolf-grew rapidly. These animals consumed large amounts of vegetation(植被)，which reduced plant diversity in the park. In the absence of wolves, coyote populations also grew quickly. The coyotes killed a large percentage of the park's red foxes, and completely drove away the park's beavers.As early as 1966，biologists asked the government to consider reintroducing wolves to Yellowstone Park. They hoped that wolves would be able to control the elk and coyote problems. Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.The government spent nearly 30 years coming up with a plan to reintroduce the wolves. The U. S. Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk, deer, and coyote populations are down, while beavers and red foxes have made a comeback. The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.49.What is the text mainly about?A. Wildlife research in the United States.B. Plant diversity in the Yellowstone area.C. The conflict between farmers and gray wolves.D. The reintroduction of wolves to Yellowstone Park.50.What does the underlined word "displaced" in paragraph 2 mean?A. Tested.B. Separated.C. Forced out.D. Tracked down.51.What did the disappearance of gray wolves bring about?A. Damage to local ecology.B. A decline in the park's income.C. Preservation of vegetation.D. An increase in the variety of animals.52.What is the author's attitude towards the Yellowstone wolf project?A. Doubtful.B. Positive.C. Disapproving.D. Uncaring.DOld Problem, New ApproachesWhile clean energy is increasingly used in our daily life, global warming will continue for some decades after CO2 emissions (排放) peak. So even if emission were to begin decrease today, we would still face the challenge of adapting to climate. Here I will stress some smarter and more creative examples of climate adaptation.When it comes to adaptation, it is important to understand that climate change is a process. We are therefore not talking about adapting to a new standard, but to a constantly shifting set of conditions. This is why, in part at least, the US National Climate Assessment says that: "there is no 'one-size fit all' adaptation." Nevertheless, there are some actions that offer much and carry little risk or cost.Around the world, people are adapting in surprising ways, especially in some poor countries. Floods have become more damaging in Bangladesh in recent decades. Mohammed Rezwan saw opportunity where others saw only disaster. His not-for-profit organization runs 100 river boats that server as floating libraries, schools, and health clinics, and are equipment with solar panels and other communication facilities. Rezwan is creating floating connectivity (连体) to replace flooded roads and highways. But he is also working at a far more fundamental level: his staff show people how to make floating gardens and fish ponds prevent starvation during the wet season.Elsewhere in Asia even more astonishing actions are being taken. Chewang Nophel lives in a mountainous region in India, where he is known as the Ice Man. The loss of glaciers (冰川) there due to global warming represents an enormous threat to agriculture. Without the glaciers, water will arrive in the rivers at times when it can damage crops. Norphel's inspiration come from seeing the waste of water over winter, when it was not needed. He directed the wasted water into shallow basins where it froze, and was stored until the spring. His fields of ice supply perfectly timed irrigation (灌溉) water. Having created nine such ice reserves, Nophel calculates that he has stored about 200, 000m3of water. Climate change is a continuing process, soNorhel's ice reserves will not last forever. Warming will overtake them. But he is providing a few years during which the farmers will, perhaps, be able to find other means of adapting.Increasing Earth's reflectiveness can cool the planet. In southern Spain the sudden increase of greenhouses (which reflect light back to space) has changed the warming trend locally, and actually cooled the region. While Spain as a whole is heating up quickly, temperatures near the greenhouses have decreased. This example should act as an inspiration for all cities. By painting buildings white, cities may slow down the warming process.In Peru, local farmers around a mountain with a glacier that has already fallen victim to climate change have begun painting the entire mountain peak white in the hope that the added reflectiveness will restore the life-giving ice. The outcome is still far from clear, But the World Bank has included the project on its of "100 ideas to save the planet".More ordinary forms of adaptation are happening everywhere. A friend of mine owns an area of land in western Victoria. Over five generations the land has been too wet for cropping. But during the past decade declining rainfall has allows him to plant highly profitable crops. Farmers in many countries are also adapting like this—either by growing new produce, or by growing the same things differently. This is common sense, But some suggestions for adapting are not. When the polluting industries argue that we've lost the battle to control carbon pollution and have no choice but to adapt, it's a nonsense designed to make the case for business as usual.Human beings will continue to adapt to the changing climate in both ordinary and astonishing ways. But the most sensible form of adaptation is surely to adapt our energy systems to emit less carbon pollution. After all, if we adapt in the way, we may avoid the need to change in so many others.53.The underlined part in Paragraph 2 implies ______.A. adaptation is an ever-changing processB. the cost of adaptation varies with timeC. global warming affects adaptation formsD. adaptation to climate change is challenging54.What is special with regard to Rezwan's project?A. The project receives government support.B. Different organizations work with each other.C. His organization makes the best of a bad situation.D. The project connects flooded roads and highways.55.What did the Ice Man do to reduce the effect of global warming?A. Storing ice for future use.B. Protecting the glaciers from melting.C. Changing the irrigation time.D. Postponing the melting of the glaciers.56.What do we learn from the Peru example?A. White paint is usually safe for buildings.B. The global warming tread cannot be stopped.C. This country is heating up too quickly.D. Sunlight reflection may relieve global warming.57.According to the author, polluting industries should ______.A. adapt to carbon pollutionB. plant highly profitable cropsC. leave carbon emission aloneD. fight against carbon pollution58.What's the author's preferred solution to global warming?A.setting up a new standard.B. B. Reducing carbon emission.C. C. Adapting to climate change.D. D. Monitoring polluting industries.五、任务型读写59.请阅读下面短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。

江苏省南通市2020届高三第一次调研测试化学试题

南通市 2020 届高三第一次调研测试化学可能用到的相对原子质量：H 1 C 12 N 14 O 16 F 19 Na 23 V 51选择题单项选择题：本题包括10小题，每小题2分，共计20分。

每小题只．有一个选项符合题意。

1.化妆品中添加甘油可以起到保湿作用。

甘油中一定含有的元素有 A ．氯 B ．氧 C ．硫 D ．磷 2.反应CO 2＋2NH 3 CO(NH 2)2＋H 2O 可应用于工业合成尿素。

下列表示反应中相关微粒的化学用语正确的是 A ．中子数为8的碳原子：86C B ．NH 3的电子式：C ．氧原子的结构示意图：D ．CO(NH 2)2的结构简式：3.有关物质的性质与用途具有对应关系的是 A ．Al 2O 3熔点高，可用作耐高温材料B ．SO 2有氧化性，可用作葡萄酒抗氧化剂C ．小苏打能与碱反应，可用作抗酸药D ．NH 4Cl 受热易分解，可用作化肥4.室温下，下列各组离子在指定溶液中能大量共存的是A ．0.1 mol •L -1 HCl 溶液：NH 4＋、Na ＋、NO 3－、SO 42－B ．0.1 mol •L -1 KOH 溶液：Na ＋、Ca 2+、AlO 2－、SiO 32－C ．0.1 mol •L -1 NaHCO 3溶液：K ＋、Cu 2＋、OH －、MnO 4－注意事项考生在答题前请认真阅读本注意事项及各题答题要求1.本试卷共 8 页，包含选择题(第 1 题~第 15 题，共 40 分)、非选择题(第 16 题~第 21 题，共 80 分)两部分。

本次考试满分为 120 分，考试时间为 100 分钟。

考试结束后，请将答题纸交回。

2. 答题前，请您务必将自己的姓名、学校、考位号、考试号等用书写黑色字迹的 0.5 毫米签字笔填写在答题纸上。

3. 请认真核对答题纸表头规定填写或填涂的项目是否准确。

4.作答选择题必须用 2B 铅笔把答题卡上对应题目的答案标号涂黑。

2020届高三生物一轮复习测试第七单元生物变异、育种和进化(含答案)

2020届高三生物一轮复习测试第七单元生物变异、育种和进化本试卷分第Ⅰ卷和第Ⅱ卷两部分，共100分，考试时间150分钟。

第Ⅰ卷一、单选题(共20小题,每小题3.0分,共60分)1.如图是某物种迁入新环境后一对等位基因的基因频率变化情况，分析这些数据能得出的结论是( )A． 1950～1980年间该种群始终没有发生进化B． 1990年该生物已经进化成了两个物种C． 1960年该种群Aa基因型的频率为48%D．变异的有利还是有害取决于生物生存的环境2.下列关于生物进化的叙述，正确的是( )A．自然选择的实质是导致种群基因频率定向改变，但不决定新基因的产生B．自然选择过程中直接受选择的是基因型，进而导致种群基因频率的改变C．地理隔离会导致种群基因库间的差异，因而也一定导致生殖隔离D．基因突变的方向与生物进化的方向保持高度一致3.下列关于育种的叙述中，正确的是( )A．用物理因素诱变处理可提高突变率B．诱变育种和杂交育种均可形成新的基因C．三倍体植物不能由受精卵发育而来D．诱变获得的突变体多数表现出优良性状4.关于基因突变是否可以遗传，有下列说法，其中不正确的是( )A．若发生在配子形成过程中，可以通过有性生殖遗传给后代B．若发生在体细胞中，一定不能遗传C．若发生在人的体细胞中有可能发展为癌细胞D．人类Y染色体上的基因突变，只能传给男性5.下列关于基因突变的叙述中，正确的是( )A．基因突变一定能引起性状改变B．亲代的突变基因一定能传递给子代C．等位基因的产生是基因突变的结果D． DNA分子结构的改变都属于基因突变6.人工建立一个数量足够大的果蝇实验群体，雌雄个体数量相当且均为杂合子。

已知某隐性基因纯合致死，则预测该隐性基因频率的变化曲线是(纵坐标表示该隐性基因频率)( )A．B．C．D．7.育种工作离不开相关的生物学知识，如图为某育种过程的流程图，则下列有关该育种过程所涉及的生物学原理的叙述恰当的是( )亲本甲×亲本乙F1花药单倍体幼苗纯合子植株符合要求的植株。

2020届高三语文一轮复习训练卷第4单元《选用仿用变换句式题》二附答案详析

2020届高三语文一轮复习训练卷第四单元《选用仿用变换句式题》二1．填入下面横线处的句子，与上下文衔接最恰当的一项是（3分）（）月光是引人清心的，因此在中国旧诗词里不知有多少关于月的吟咏，像“中庭地白树栖鸦，冷露无声湿桂花”，像“长安一片月，万户捣衣声”，像“暮云收尽溢清寒，银汉无声转玉盘”但那多是赞秋月的。

而今是冬月，没有_________________，没有___________________，但空旷、辽阔。

A.虫的吟唱，花的清香/浓浓的树影，萧瑟的凉风B.花的清香，虫的吟唱/浓浓的树影，淡淡的凉风C.虫的吟唱，淡淡的凉风/花的清香，浓浓的树影D.花的清香，浓浓的树影/虫的吟唱，萧瑟的凉风2.阅读下面论述性语段，选出能更好地完成其论证的一项是（3分）(）人类学家坚定地断言：文化仅当它是独立的而非依赖的，才能有所发展。

也就是说，只有当来自于它外部的压力被来自于它内部的首创精神所取代的时候，它才能有所发展。

同样，如果我们把每一所单独的学校视为一种独立的文化的话，那么，教育进步的关键是：A.外来的各种有利或有害的因素必须被阻止参与学校的发展之中。

B.某些学校只要依靠他们全体员工和学生的创造力就能有所发展。

C.学校管理人员必须随着学校发展的进程而调整自己的首创精神。

D.每个学校要依靠独立于外来压力的内部首创精神才能有所发展。

3．仿照下面的示例，利用所给材料续写三句话，要求内容贴切，句式与所给示例相同。

（6分）诸子争鸣、造纸印刷、筑长城开运河，中国人民具有伟大的创造精神。

材料：奋斗团结梦想建强国谋复兴御外侮卫家国脱贫困奔小康垦田拓海开天辟地守望相助抗灾治水逐日奔月同舟共济4．请根据下面一段话的中心意思，在横线处续写恰当的语句，使整段文字语意完整连贯，内容贴切，表达生动。

2020届高三化学一轮复习检测(6)(物质的量2)-

2020届高三化学一轮复习检测(6)(物质的量2)(物质的量2)2010/9/7一、选择题1．阿伏加德罗常数约为6.02×1023mol-1，以下讲法一定正确的选项是A．60g SiO2晶体中，含有2×6.02×1023个Si－O键B．标准状况下，560 mL甲烷和甲醛的混合气体中，含有的共用电子对数为0.1 N A C．5.6 g铁投入浓硫酸中，生成的气体分子数为0.1 N AD．14g 两种烯烃C n H2n和C m H2m混合物，含有共用电子对数目为1.5×6.02×1023个2．用N A表示阿伏加德罗常数。

以下表达正确的选项是A．100mL3mol/L盐酸与5.6gFe充分反应转移0.3N A个电子B．6g尿素与葡萄糖的混合物在足量氧气中完全燃烧生成0.2N A个水分子C．12gC60〔〕中含有N A个共价键D．10mL5mol/L(NH4)2SO4溶液中含有NH4+数目为0.1N A个3．阿伏加德罗常数为N A，以下讲法中正确的选项是A．12 g金刚石中所含共价键数目为N AB．22.4 L的HCl溶于水，溶液中H＋离子数为N AC．1 mol CO2与含1 mol NaOH的溶液反应后，溶液中 3HCO离子数为N A D．Na2O2与H2O反应，常温常压下生成16 gO2，反应中转移电子数为N A4．用N A表示阿伏加德罗常数，以下讲法正确的选项是A．8.2 g Na218O2与过量的H216O作用，生成的氧气中含有的中子数为0.8 N A B．0.4 mol乙炔和乙醛混合气体，在氧气中充分燃烧,消耗氧气的分子数为N A C．标准状况下，2.24L CHCl3含有的分子数为0.1×6.02×1023D．6.4g CaC2晶体中含有阴阳离子总数与3.4 gH2O2晶体中含有阴阳离子总数相等，且都为0.2 N A5．N A代表阿伏加德罗常数，以下表达错误的选项是．．．．．．A．2mol乙醇和1mol乙二酸反应生成乙二酸二乙酯时，生成的水分子数为2N AB ．3.2g N 2H 4中共用电子对的数目为0.5N AC ．标准状况下，分子数为N A 的CO 、C 2H 4混合气体体积约为22.4L ，质量为28gD ．同温下，1L0.5mol·L -1NH 4Cl 溶液与2L0.25mol·L -1NH 4Cl 溶液含NH 4+物质的量不同6．设N A 表示阿伏加德罗常数，以下讲法正确的选项是A. 在含有N A 个CH 3COO －的醋酸溶液中， H + 数目略大于N A B. N 60结构如右图，28ｇN 60单质中含有的N －N 键个数为N A C. 2.9g 熟石膏(2 CaSO 4·H 2O)含有的结晶水分子数为0.02N A D. 在标准状况下，2.24L 的CCl 4中含有C —Cl 键的数目约为0.4N A 7．设N A 表示阿伏加德罗常数的值，以下讲法正确的选项是 A ．精炼铜过程中阴极增重6.4g 时，电路中转移电子数大于0.2N AB ．通常状况下，将0.5mol HI 气体和0.5mol 氯气混合后气体的分子数为N AC ．18g 2H 218O 所含的中子数为1.8N AD ．53g 碳酸钠固体所含离子数为1.5N A8．设N A 表示阿伏加德罗常数，以下讲法正确的选项是A ．11.2L 的CH 4和NH 3混合气体所含有的分子数目为0.5 N AB ．1.5 mol 的NO 2与足量H 2O 反应，转移的电子数为N AC ．14g 分子式为C n H 2n 的(n≥2)的链烃中含有的C=C 的数目为A N n1D ．6.2g 氧化钠和7.8g 过氧化钠混合物中所含有的离子数为0.7 N A 9．亚氯酸钠(NaClO 2)可用作漂白剂，在酸性溶液中生成HClO 2而发生分解，分解的化学方程式为222542,HClO ClO HCl H O =↑++2ClO 是广谱型消毒剂。