甘肃省天水市第一中学2017-2018学年高一下学期第二阶

天水一中2017级2017—2018学年度第二学期第二学段考试数学试题（满分：100分时间：90分钟)一.选择题：本大题共10小题，每小题4分，共40分，在每小题给出的四个选项中，只有一项是符合题目要求的.1．阅读如图所示的程序框图，则输出的值是A。

B。

C. D.2．要得到的图像，需要将函数的图像（ )A. 向左平移个单位 B。

向右平移个单位C。

向左平移个单位 D. 向右平移个单位3．在（0，2π)内,使tan x>1成立的x的取值范围为A. (，）B. （π,π）C. （，）∩（π，π)D. (，）∪（π,π）4．函数（）的图象如图所示，则的值为（）A． B． C． D．5．如图，在中，是边的中线，是边的中点，若，则=( ）A. B. C。

D。

6．将函数的图像向左平移个单位长度后,所得到的图像关于轴对称,则的最小值是A. B. C. D。

7．在函数①，②，③,④中，最小正周期为的所有函数为A。

①②③ B. ①③④ C。

②④ D。

①③8．函数的大致图象为A. B。

C. D.9．设，，，则（）A. B. C. D.10．已知函数的图象上关于轴对称的点至少有3对,则实数的取值范围是（ )A、 B、 C、 D、二、填空题：本大题共4小题，每小题4分，共16分.11．已知向量，，若在方向上的投影为，,则__________．12．若函数，则f（x）的值域为___________．13。

已知，则__________．14．若函数的最大值和最小值分别为、，则函数+m=_______．三。

解答题：本大题共4小题，共44分.解答应写出必要的文字说明。

15．(本小题10分)已知(1）求的值; （2）求的值.16.(本小题10分）设A，B，C，D为平面内的四点，且A（1，3），B(2,-2)，C（4,1).（1）若,求D点的坐标；(2）设向量,若向量平行，求实数k的值.17．（本小题12分)对某电子元件进行寿命追踪调查，所得样本数据的频率分布直方图如下.（1)求，并根据图中的数据,用分层抽样的方法抽取个元件,元件寿命落在之间的应抽取几个？（2）从（1)中抽出的寿命落在之间的元件中任取个元件，求事件“恰好有一个元件寿命落在之间,一个元件寿命落在之间”的概率.18. （本小题12分）已知函数的图象两相邻对称轴之间的距离是。

天水一中高二级2017-2018学年度第二学期第二阶段考试英语试题（满分100分，时间90分钟）第I卷选择题（共60分）I. 阅读理解（共10小题每小题2分，满分20分）阅读下列短文，从每题所给的四个选项（A、B、C和D）中选出最佳选项，并在答题卡上将该项涂黑。

AThe writer Margaret Mitchell is best known for writing Gone with the Wind, first published in 1936. Her book and the movie based on it, tell a story of love and survival during the American Civil War. Visitors to the Margaret Mitchell House in Atlanta, Georgia, can go where she lived when she started composing the story and learn more about her life.Our first stop at the Margaret Mitchell House is an exhibit area telling about the writer’s life. She was born in Atlanta in 1900. She started writing stories when she was a child. She started working as a reporter for the Atlanta Journal newspaper in 1922. One photograph of Ms. Mitchell, called Peggy, shows her talking to a group of young college boys. She was only about one and a half meters tall. The young men tower over her, but she seems very happy and sure of herself. The tour guide explains: “Now in this picture Peggy is interviewing some boys from Georgia Tech, asking them such questions as ‘Would you really marry a woman who works?’ And today it’d be ‘Would you marry one who doesn’t?’ ”The Margaret Mitchell House is a building that once contained several apartments. Now we enter the first floor apartment where Ms. Mitchell lived with her husband, John Marsh. They made fun of the small apartment by calling it “The Dump ” .Around 1926, Margaret Mitchell had stopped working as a reporter and was at home healing after an injury. Her husband brought her books to read from the library. She read so many books that he bought her a typewriter and said it was time for her to write her own book. Our guide says Gone with the Wind became a huge success. Margaret Mitchell received the Pulitzer Prize for the book. In 1939 the film version was released. It won ten Academy Awards, including Best Picture.1．The book Gone with the Wind was _________.A. first published on a newspaperB. awarded ten Academy AwardsC. written in “The Dump”D. adapted from a movie2．The underlined phrase “tower over” in Paragraph 2 is closest in meaning to_________.A. be very pleased withB. show great respect forC. be much taller thanD. show little interest in3．Why did Ms. Mitchell stop working as a reporter according to the passage?A. Because she was rich enough.B. Because she was injured then.C. Because her husband didn’t like it.D. Because she wanted to write books.4．Which is the best title for the passage?A. Gone with the Wind: A Huge Success.B. Margaret Mitchell: A Great Female Writer.C. An Introduction of the Margaret Mitchell House.D. A Trip to Know Margaret Mitchell.BPeople who have lost the ability to understand or use words due to brain damage are called aphasics（失语症患者）.Such patients can be extremely good at something else.From the changing expressions on speakers' faces and the tones of their voices,they can tell lies from truths.Doctors studying the human brain have given a number of examples of this amazing power of aphasics.Some have even compared this power to that of a dog with an ability to find out the drugs hidden in the baggage.Recently,scientists carried out tests to see if all that was said about aphasics was true.They studied a mixed group of people.Some were normal;others were aphasics.It was proved that the aphasics were far ahead of the normal people in recognizing false speeches—in most cases,the normal people were fooled by words,but the aphasics were not.Some years ago,Dr.Oliver Sacks wrote in his book about his experiences with aphasics.He mentioned a particular case in a hospital.Some aphasics were watching the president giving a speech on TV.Since the president had been an actor earlier,making a good speech was no problem for him.He was trying to put his feelings into every word of his speech.But his way of speaking had the opposite effect on the patients.They didn't seem to believehim.Instead,they burst into laughter.The aphasics knew that the president did not mean a word of what he was saying.He was lying!Many doctors see aphasics as people who are not completely normal because they lack the ability to understand words.However,according to Dr.Sacks,they are more gifted than normal people.Normal people may get carried away by words.Aphasics seem to understand human expressions better,though they cannot understand words.5．What is so surprising about aphasics?A. They can fool other people.B. They can tell whether people are lying.C. They can understand language better.D. They can find out the hidden drugs. 6．How did the scientists study aphasics?A. By asking them to watch TV together.B. By organizing them into acting groups.C. By comparing them with normal people.D. By giving them chances to speak on TV. 7．What do we learn from this text?A. What ones says reflects how one feels.B. Aphasics have richer feelings than others.C. Normal people often tell lies in their speeches.D. People poor at one thing can be good at another.CDo you want to get home from work knowing you have made a real difference in someone’s life?If yes, don’t care about sex or age! Come and join us, then you’ll make it!Position: Volunteer Social Care Assistant(No Pay with Free Meals)Place: ManchesterHours: Part TimeWe arc now looking for volunteers to support people with learning disabilities to live active lives! Only 4 days left. Don’t miss the chance of lending your warm hands to help others!Role:You will provide people with learning disabilities with all aspects of their daily lives. You will help them to develop new skills. You will help them to protect their rights and their safety. Butyour primary concern is to let them know they are valued.Skills and Experience Required:You will have the right values and great listening skills. You will be honest and patient. You will have the ability to drive a car and to communicate in fluent written and spoken English since you’ll have to help those peop le with different learning disabilities. Previous care-related experience will be a great advantage for you.8．What does the underlined part mean?A. You’ll make others’ lives more meaningful with this jobB. You’ll arrive home just in time from this jobC. You’ll earn a good salary from this jobD. You’ll succeed in getting this job9．The volunteers’ primary responsibility is to help people with learning disabilities______.A. to get some financial supportB. to properly protect themselvesC. to learn some new living skillsD. to realize their own importance10．Which of the following can first be chosen as a volunteer?A. The one who can drive a carB. The one who has done similar work beforeC. The one who has patience to listen to othersD. The one who can use English to communicateII.阅读七选五（共5小题，每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

甘肃省天水市第一中学2017-2018学年高一下学期
第二阶段考试数学试题
【参考答案】
一、选择题
1．B 2．D 3．D 4．D 5．B 6．B 7．A 8．B 9．B 10．D
二、填空题
11．6
12．[，1] 13.32- 14．4 三、解答题 15．(1)；(2)4. 16.(1)D (5,-4)；(2)k =31-. 17．解：（1）根据题意：
, 解得
， 设在寿命落在之间的应抽取个，
根据分层抽样有：
，
解得：, 所以寿命落在之间的元件应抽取个.
（2）记“恰好有一个寿命落在之间，一个寿命为
之间”为事件， 易知，寿命落在
之间的元件有个，分别记，落在之间的元件有个， 分别记为：，从中任取个元件，有如下基本事件：
，
，共有个基本事件. 事件“恰好有一个寿命落在之间，一个寿命为
之间”有： ，
，共有个基本事件， ∴，
∴事件“恰好有一个寿命落在之间，一个寿命为之间”的概率为.
18.。

甘肃省天水一中18-18学年高一下学期第二阶段考试历史（理科）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，考试用时90 分钟。

第Ⅰ卷（选择题共50分）一、选择题（本大题共35小题，1－20小题每题1分，21－35小题每题2分。

每小题的四个选项中，只有一个选项是符合题意的，多选、错选、不选均不得分。

将正确答案填涂到机读卡上）1．英国发动战争的根本目的是（）A．保护鸦片贸易B．割占中国领土C．打开中国商品市场D．争取外交礼仪平等2．洋务派以“自强”为旗号创办的企业是（）A．轮船招商局B．福州船政局C．发昌机器厂D．开平煤矿3．最早投资于中国近代民族资本主义工业的是（）A．商人、地主和官僚 B．洋务派、官僚和商人C．手工工场主和地主 D．商人和高利贷者4．右图中标志着北洋舰队全军覆没的事件发生在（）A．①B．②C．③D．④5．使维新变法思潮迅速发展成为爱国救亡运动的政治事件是（）A．《变法通仪》的发表B．公车上书C．《中外纪文》的创办D．强学会的成立6．维新变法运动和义和团运动先后兴起，其相同的背景因素是（）A．封建制度的衰败B．民族矛盾的上升 C．洋务运动的破产D．资本主义的发展7．三民主义作为革命指导思想，其局限性突出表现在（）A．没有解决农民的土地问题B．没有反映人民的民主要求C．没有表达资产阶级在经济上的要求D．没有明确提出反帝要求8．袁世凯复辟帝制失败的主要原因是（）A．中国资产阶级力量的壮大B．民主共和的观念深入人心C．孙中山的号召得到全国响应D．北洋军阀内部的矛盾9．新文化运动产生的经济基础是（）A．民族资本主义的进一步发展B．半殖民地半封建经济的发展C．自然经济的瓦解D．官僚资本主义的形成10．五四运动中学生提出的口号与中国代表在巴黎和会上提出的要求基本一致的是（）①外争国权②内惩国贼③废除二十一条④拒绝和约签字A．①③B．①③④C．①②③④D．③11．民国初期，中国民族工业出现了短暂的春天，导致“短暂”的主要原因是（）A．北洋政府对民族工业扶植不力B．封建自然经济的束缚C．一战后西方列强卷土重来D．巴黎和会中国外交的失败12．黄埔军校最显著的办学特点是（）A．为革命培养了大批军事人才B．共产党员负责军校政治工作C．学员在军事斗争的实践中接受训练D．把政治教育与军事训练放在同等重要地位13．国民革命失败使中国共产党得到的最深刻的教训是（）A．必须推动全国工农运动的发展C．必须建立巩固的根据地B．必须建立革命军队 D．必须掌握革命的领导权和武装14．毛泽东建立农村革命根据地，走农村包围城市道路的主要依据是（）A．八七会议精神B．共产国际指示C．中国的国情D．人民群众的支持15．一二九运动中，北平学生高唱《义勇军进行曲》。

阅读理解1--5．CDBCB 6-10.BAACB 11--15 C B ADB 七选五16--20．DF BE A完形填空21--25．C A A BD 26--30．CDBDA 31--35．BAACC 36--40．C A CDB语法填空achievement 42．well 43．praising 44．whether 45．admired46．unlucky 47．nor 48．What 49．her 50．that课文填空51.surrounded 52. measuring 53. argued 54. entertainment 55. hunger短文改错Last week I went to visit to my former neighbor, Mr. Yang. He and I used to living删除to 改为livenext to each other for many years. About half a year ago, an order came which the改为thatold building we were living in, along with many other ones nearby, were going to be改为waspulled down to make room for a main street. So I had to move apart. Mr. Yang now l改为weives in the suburbs near a beautiful park. His new apartment is much big than before.改为biggerThe only problem is that it took quite a long time to get to the downtown area.改为 takesTherefore, Mr. Yang doesn’t seem to worry about the long distance. He says that ^new改为However 加 asubway line is to be built in a few year and he is sure life will be better in theyearsfuture.书面表达（共15分）Dear Tom，I'm glad that you are going to visit Beijing for two days. As the capital city of China, Beijinglies in the north of China (North China/northern China)，covering a land of 16,000 square kilometers with a population of 1.3 million. As an international city, it is blessed with the most world cultural heritage (heritage sites) on the earth.As for your 2day schedule, my suggestions are as follows. On the first day, you may pay a visit to the Great Wall, where you can take some photos as well as buy some souvenirs. On the second day, you could stand on the Tiananmen Gatetower to overlook the Forbidden City. After that, you could look around the Palace Museum, so as to immerse yourself in the charm of traditional Chinese culture. What do think of this plan?Welcome to Beijing! I hope you'll fall in love with it when arriving here. Looking forward to seeing you soon.Best wishes。

天水市一中2017-2018年第二学期高一级第二次阶段考试化学试卷（满分：100分时间：90分钟）可能用到的相对原子质量：H-1、He-2、C-12、N-14、O-16、Na-23、Mg-24、Al-27、P-31、S-32、Cl-35.5、Fe-56、Cu-64、Zn-65、Ba-137注意事项：1．答题前填写好自己的姓名、班级、考号等信息2．请将答案正确填写在答题卡上一、单项选择题（共20小题，每小题只有1个正确答案，1~10题每小题2分，11~20题每小题3分，共50分）1.下列化学电池不易造成环境污染的是（）A．铅蓄电池 B．锌锰电池 C．镍镉电池 D．氢氧燃料电池2.下列反应既属于氧化还原反应，又是吸热反应的是（）A．锌粒与稀硫酸的反应 B．灼热的木炭与CO2反应C．甲烷在氧气中的燃烧反应 D．Ba(OH)2·8H2O晶体与NH4Cl晶体的反应3.下列说法正确的是（）A．阴、阳离子通过静电引力所形成的化学键叫做离子键B．在共价化合物中，元素化合价有正负的主要原因是共用电子对有偏移C．离子化合物不可能只含非金属元素D．H2O分子比H2S分子稳定的原因，是H2O分子间存在氢键4.下列说法正确的是（）A．既能向正反应方向，又能向逆反应方向进行的反应叫可逆反应B．化学反应速率可以用单位时间内生成某物质的质量多少来表示C．水力和煤都是一次能源，水电和火电都是二次能源D．氢氧燃料电池是一种能量转换率较高、符合绿色化学理念的新型动力能源，能量转化率可达到100%5.下列关于有机化合物的说法错误的是（）A．凡是含碳元素的化合物都属于有机化合物B．甲烷分子具有正四面体结构C．甲烷分子中四个C-H键是完全等价的键D．甲烷分子中只有极性供价键6.下列各组物质中，全部以共价键结合的是（）A．Na2S、MgO、HF B．NH4Cl、H2O2、HClC．H2S、NH3、CO D．CO2、H2O、He7.图中能组成原电池产生电流的是（）A． B． C． D．8.化学能可与热能、电能等相互转化。

天水市一中高一级2017—2018学年度第二学期段中考试生物试题（理）（满分：100分时间：90分钟）一、选择题（1-30每题1分，31-40每题2分，共50分）1．下列关于遗传信息传递的说法正确的是（）A. 转录和翻译场所不可能相同B. RNA既能参与蛋白质的生物合成，也能储存或传递遗传信息C. DNA复制时，先解旋为两条单链，再以两单链为模板进行复制D. 同一个体的不同细胞中DNA和RNA相同2．下列关于生物遗传的相关叙述，正确的是（）A. 真核生物的基因和染色体的行为都存在平行关系B. tRNA的单链结构决定了其分子中没有碱基配对现象C. 一个mRNA分子可以相继结合多个核糖体，同时合成多种肽链D. 基因表达的过程中，一定有rRNA参与合成蛋白质3．下列关于真核细胞内相关代谢的叙述，正确的是（）A. DNA的合成一定以DNA为模板，在细胞核中进行B. RNA的合成一定以DNA为模板，在细胞核中进行C. 肽链的合成一定以RNA为模板，在细胞质中进行D. 在翻译过程中，一个mRNA一定与一个核糖体结合4．下图是两种细胞中主要遗传信息的表达过程，据图分析，下列相关说法错误的是（）A. 甲没有核膜围成的细胞核，所以转录翻译同时发生在同一空间内B. 乙细胞的基因转录形成的mRNA需要通过核孔才能进入细胞质C. 两种表达过程均主要由线粒体提供能量，由细胞质提供原料D. 若合成某条肽链时脱去了100个水分子，则该肽链中至少含有102个氧原子5．以下甲、乙两图，表示某真核细胞中遗传信息传递的某些过程，下列叙述不正确的是（）A. 甲图所示过程进行的场所可以为细胞核B. 乙图所示过程涉及碱基T与A的配对C. 乙图中②③④⑤最终形成的物质结构可以相同D. SARS病毒不能独立完成甲乙两图所示生命过程6．下列关于基因型和表现型的关系叙述正确的是（）A. 基因型相同，表现型一定相同B. 表现型相同，基因型一定相同C. 表现型是基因型和环境条件共同作用的结果D. 基因型是表现型和环境条件共同作用的结果7．如图所示为人体内基因对性状的控制过程，下列叙述正确是（）A. ①②或⑥⑦都表示基因的表达过程，但发生在不同细胞中B. 基因1和基因2的遗传一定遵循基因的自由组合定律C. 生物体中一个基因只能决定一种性状D. ⑦→⑥→⑤过程说明基因可通过控制酶的合成，直接控制生物的性状8．下列关于基因、蛋白质与性状关系的叙述，正确的是（）A. 生物性状改变的直接原因一定是mRNA发生了改变B. 在转录和逆转录过程中，所需的模板、原料、酶各不相同C. RNA 感染宿主细胞后均可合成出病毒的DNAD. 皱粒豌的形成说明基因可通过控制蛋白质的结构直接控制性状9．下图为tRNA的结构示意图，有关叙述正确的是( )A. tRNA的主要作用是合成氨基酸B. 每种氨基酸都只有一种tRNA与之对应C.tRNA虽然是单链，但其中也有氢键D. 图示tRNA对应的mRNA上的遗传密码为UAC10．有一个化合物的分子式如下，控制这个分子合成的基因中，脱氧核苷酸的个数至少是（）A. 8个B. 12个C. 16个D. 24个11．下列有关基因的叙述，不正确的是（）A. 基因可以准确的复制B. 基因能够存储遗传信息C. 基因是4种碱基对的随机排列D. 基因是有遗传效应的脱氧核苷酸序列12．下列关于科学家的研究过程或方法思路不正确的是（）A.摩尔根通过研究果蝇的眼色遗传，运用假说演绎法，证明了“基因在染色体上”B.科学家用差速离心法将真核细胞中各种细胞器进行分离以研究各自组成成分和功能C.1953年沃森和克里克利用构建物理模型的方法发现了DNA的双螺旋结构模型D.1928年格里菲斯的肺炎双球菌转化实验和1952年赫尔希和蔡斯的噬菌体侵染细菌实验的研究方法都是设法把DNA与蛋白质分开，研究各自的效应13．人体生化反应过程中，有碱基互补配对关系的是（）①DNA复制②转录③逆转录④RNA复制⑤翻译⑥转运RNA携带氨基酸⑦信使RNA进入细胞质A．①②③⑤⑦ B．①②③④⑤ C．①②⑤⑥⑦ D．②③④⑤⑥14．在一个DNA分子中，A与T之和占全部碱基总数的54%，其中一条链中的G与T分别占该链碱基总数的22%和28%，则由该链转录的信使RNA中G与C分别占碱基总数的（）A． 22%,28% B．24%,22% C．23%,27% D．26%,24%15．“人类基因组计划”对于人类深入了解自身的基因结构和功能有重要的意义，其目的是测定人类基因组的（）A. mRNA的碱基序列B. DNA的碱基序列C. tRNA的碱基序列D. rRNA的碱基序列16．有3个核酸分子,经分析共有5种碱基，8种核苷酸，4条多核苷酸链，它的组成是 ( )A.1个DNA分子,2个RNA分子B.3个DNA分子C.2个DNA分子,1个RNA分子D.3个RNA分子17．DNA分子的多样性和特异性主要是由于（）A. 分子量大B. 具有规则的双螺旋结构C. 碱基对的不同排列方式D. 磷酸和脱氧核糖的相间排列18．下列关于基因和染色体在减数分裂过程中行为变化的描述，错误的是（）A. 同源染色体分离的同时，等位基因也随之分离B. 非同源染色体数量越多，非等位基因组合的种类也越多C. 染色单体分开时，复制而来的两个基因也随之分开D. 非同源染色体自由组合，使所有非等位基因之间也发生自由组合19．若以1分子含500个碱基对的DNA（不含放射性）为模板，在含15N的环境中进行复制n次，下列相关叙述正确的是（）A. 复制过程中，需要消耗（2n-1）×1000个脱氧核糖核苷酸B. 子代DNA中，两条链均含有15N的DNA分子有（2n-1）个C. 细胞内DNA复制主要发生在细胞核、线粒体和核糖体中D. DNA复制过程中葡萄糖作为直接供能物质20．若用32P标记“人细胞”的DNA分子双链，再将这些细胞转入不含32P的培养液中培养，在第二次细胞有丝分裂的中期、后期，一个细胞中的染色体总条数和被32P标记的染色体条数分别是（）A. 中期是46和46、后期是92和46B. 中期是46和46、后期是92和92C. 中期是46和23、后期是92和23D. 中期是46和23、后期是46和2321．某AaBb植株自花受粉，经检测发现ab的花粉中有50%的致死率，则其后代出现双显性表现型个体的概率约为（）A. 17/28B. 19/28C. 9/16D. 32/4922．下列有关叙述，正确的是（）A. XY型性别决定的生物，Y染色体都比X染色体短小B. XY型性别决定的生物，体细胞中含有性染色体上的基因C. 性染色体上的基因都与性别决定有关D. 伴性遗传均有交叉遗传和隔代遗传现象23．一对正常的夫妇生了一个红绿色盲的孩子，在妻子的一个初级卵母细胞中，正常情况下色盲基因的数目和分布情况最可能是（）A．2个，位于X染色体上的一个DNA分子的两条链中B．1个，位于X染色体上的一个染色单体中C．2个，位于X染色体上的两个姐妹染色单体中D．4个，位于四分体的每个染色单体中24．如图为一个家族中某种遗传病的遗传情况，若3号个体为纯合子的概率是1/2，则该病最可能的遗传方式是( )A. 伴X染色体显性遗传B. 伴Y染色体遗传C. 伴X染色体隐性遗传D. 常染色体隐性遗传25．下列关于DMA分子的计算，正确的是（）A. 同种生物不同个体的细胞中，DNA分子的（A+T)/(G+C)的值一般相同B. 不同种生物的不同细胞中，DNA分子的（A+G)/(T+C)的值一定不同C. 若DNA 的一条链中（A+G)/(T+C)=0.5，则其互补链中(A+G)/(T+C)=0.5D. 10对A-T碱基对和20对C-G碱基对，可构成的DNA分子种类数小于430种26．根据下图，叙述中正确的是( )A. 甲可能是丙的子细胞B. 乙、丙细胞不可能来自同一个体C. 甲、乙、丙三个细胞均含有4条染色体D. 甲、乙、丙三个细胞均含有同源染色体27．下列有关染色体、DNA、基因、脱氧核苷酸的说法，不正确的是（）①基因一定位于染色体②基因是染色体上的一段③四种脱氧核苷酸的数目和排列顺序决定了基因的多样性和特异性④一条染色体上含有1个或2个DNA分子A. ①②B. ②③C. ③④D. ①④28．下图表示细胞分裂和受精作用过程中核DNA含量和染色体数目的变化。

天水市一中高一年级 2017-2018 学年度第二学期段中考试生物试题（文）一、选择题1.孟德尔的遗传定律只能适用于下列哪些生物（）①噬菌体②乳酸菌③酵母菌④蓝藻⑤蘑菇A. ①②B. ③⑤C. ②③D. ①④【答案】B【解析】【分析】1、基因分离定律的实质：在杂合子的细胞中，位于一对同源染色体上的等位基因，具有一定的独立性；生物体在进行减数分裂形成配子时，等位基因会随着同源染色体的分开而分离，分别进入到两个配子中，独立地随配子遗传给后代。

2、基因自由组合定律适用范围：①适用两对或两对以上相对性状的遗传，并且非等位基因均位于不同对的同源染色体上。

②非同源染色体上的非等位基因自由组合，发生在减数第一次分裂过程中，因此只有进行有性生殖的生物，才能出现基因的自由组合。

3、按遗传基本定律遗传的基因，均位于细胞核中的染色体上。

所以，基因的分离定律和基因的自由组合定律，均是真核生物的细胞核遗传规律。

【详解】孟德尔的遗传定律的实质是在减数分裂过程中，等位基因分离，非同源染色体上的非等位基因自由组合，所以只有能进行减数分裂的真核生物，其细胞核遗传才遵循遗传定律。

①噬菌体属于病毒，没有细胞结构，所以不能适用；②乳酸菌、④蓝藻属于原核生物，不能进行减数分裂，所以不适用，③酵母菌、⑤蘑菇属于真核生物，能进行减数分裂，所以适用。

所以孟德尔的遗传定律只能适用的生物是③⑤。

故选：B。

【点睛】本题考查孟德尔遗传定律的相关知识，意在考查学生的识记能力和判断能力，运用所学知识综合分析问题和解决问题的能力。

2.下列关于孟德尔遗传定律的现代解释的叙述，错误的是（）A. 非同源染色体上的非等位基因的分离和组合是互不干扰的B. 同源染色体上的等位基因具有一定的独立性C. 同源染色体上的等位基因分离，非等位基因自由组合D. 同源染色体上的等位基因分离，非同源染色体上的非等位基因自由组合【答案】C【解析】基因自由组合定律的现代解释认为：非同源染色体上的非等位基因的分离或组合是不不干扰的，A项正确；在杂合体的细胞中，位于一对同源染色体上的等位基因，具有一定的独立性，B项正确；基因自由组合定律的实质是：在减数分裂过程中，同源染色体上的等位基因彼此分离的同时，非同源染色体上的非等位基因自由组合，故C项错误，D项正确。

天水一中高一级2017-2018学年第二学期第二学段考试语文试题（满分：100分考试时间：120分钟）第I卷（阅读题）一、现代文阅读（一）论述类文本阅读（6分）阅读下面的文字，完成1-3题。

书法的人文精神与价值取向。

书法艺术是一种饱含人文精神的艺术，古人对书法的人文精神多有论述。

柳公权曰：“心正则笔正。

”苏轼说：“古之论书者，兼论其平生。

苟非其人，虽工不贵也。

”明末项穆在《书法雅言》中说：“论书如论相，观书如观人。

”古往今来，强调书家的人格地位，书品即人品的人格主义的评价方法长期影响着书坛。

书法作为一门独立的艺术，与其他艺术一样，各自有属于自己的美学内涵与价值，它不需要嫁接或附属于非原生态的环境来生存。

但是，书法是一种标榜的艺术，书法作品在彰显艺术魅力的同时，书法家的人格、学识因素也会凸现出来。

所以说书法是一种人文的艺术、人格的艺术也未尝不可。

世上没有纯粹的艺术，尤其是书法这门必须承载汉字，并通过汉字以表达事物和情感的艺术。

那么，书家的作品，即使是书写他人原创的作品，首先也是经过书家的人格认可，且注入了自己饱满的情感后才书写出来的，每幅作品都无疑会镌刻上自己的人格烙印。

艺术家提供的产品必须能满足人们的精神需要，这就是艺术家的良知与社会责任。

艺术家为了能生产合格的产品，必须从精神的、道义的、物质的、社会的、生活的多个方面进行投入、筛选、填充、调试，甚至是反复地加工提炼，否则他的产品就不合格，就不可能获准“上市”。

所以，书法家与其他艺术家一样，艺术的修炼必须也是人格的修炼和人文领域诸多学科的学识与涵养。

作为书家，恪守做人的原则，充分把握作品的思想性与艺术性，这是必须要做到的。

人文精神是人文知识分子应有的一种品格，一种情怀，是这个阶层的精神特征。

中国有传统文化所坚持的以社会为本位，以仁爱为中心，以修身、养性、齐家、治国、平天下为目的的人文精神；西方有文艺复兴时期的以个性解放为目的，以自由、平等、博爱为口号的人文精神。

甘肃省天水一中18-18学年高一下学期第二阶段考试历史（文科）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。

第Ⅰ卷（选择题共60分）一、选择题（本题共30小题，每小题2分，共60分，每题只有一个正确答案。

）1．历史典故“烽火戏诸侯”中，诸侯因义务所在，蜂拥而至勤王。

这一典故反映的政治制度是（）A．宗法制B．分封制C．郡县制D．王位世袭制2．“齐人”、“鲁人”、“楚人”这种表述，逐渐让位于以行政区划为籍贯的表述，造成这一变化的制度因素是（）A．分封制B．宗法制C．郡县制D．三省六部3．某古代水利工程“旱时引水浸润，雨则杜塞水门，故记曰‘水旱从人，不知饥馑’后来三国时蜀相诸葛亮“征丁十二百人护之”，据此判断，这项水利工程是（）A．都江堰B．郑国渠C．灵渠D．芍陂4．《吕氏春秋·上农》：“民舍本而事末则其产约（财产轻便），其产约则轻（容易）迁徙，轻迁徙，则国家有患，皆有远志，无有居心。

……”这段话的核心思想是A．民贵君轻B．重农抑商C．施行仁政D．闭关锁国5．春秋时期，我国出现一家一户为单位的个体小农经济的主要条件是（）A．商鞅变法的推行B．孔子提出“调解与和谐社会人际关系”的主张C．铁器、牛耕的使用D．各诸侯国势力的强大6．剪纸是我国的民间艺术，观察下列剪纸，它们形象地反映了（）A．男耕女织的自然经济B．高度发达的商品经济C．领先世界的手工技术D．古代社会的和谐融洽7．提出“政在得民”、“民贵君轻”的思想家是（）A．孔子B．孟子C．墨子D．商鞅8．下列能体现秦汉时期中国人奋发向上的精神面貌和统一王朝恢弘气势的是（）①巨龙般的万里长城②再现横扫六国壮观场面的秦陵兵马俑③中国古代第一部纪传体通史《史记》④世界最早的天文学著作《甘石星经》A．①②③B．①②C．③④D．①②③④9．下列最能说明魏晋南北朝时期江南经济开发成果的是（）A．耕作技术进步B．农田水利兴修较多C．农作物品种增多D．南北经济趋向平衡10．“它排除了丞相个人专断，相权过大威胁皇权而出现的政治危机，而且增强了决策施政的程序性、合理性，提高了行政效率。

天水一中2017级2017-2018学年度寒假作业考试英语试题（满分：100分时间：90分钟）一、选择题（共55分）第一部分阅读理解（共15小题，每小题2分，满分30分）阅读下列短文，从每题所给的四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

AHere are some of the movies that inspire you to travel.The Lord of the RingsThe story is about Frodo, his friends and their adventurous journey through Middle Earth. Filmed in about 150 locations all over New Zealand, this traveling movie shows its beauty. From the rolling hills of Matamata to the volcanic retrion of Mt Ruapehu, this is the best movie to see New Zealand . Also, this travel movie might have the only distinction of being inspired by ravel too.The director of the movie Peter Jackson first read the novel on a train going from Wellington to Auckland when he was just seventeen.Indiana Jones. The Complete Adventure CollectionIndiana Jones and travel are inseparable. Everyone remembers the red line on the world map that shows up on screen when he flies. The Egypt scenes in Raiders of the Lost Ark were filmed in Tunisia. Temple of doom was filmed mostly in Sri Lanka and Macau. The Last Crusade was filmedin Italy , Spain and Jordan including an excellent view of Petra. Unlike the other, Kingdom of the Crystal Skull was filmed almost entirely in the United States. However, their shots of Iguazu Fallsare amazing.Romancing the Stone and jewel of the NileThis movie series focuses on a romance writer Joan and her adventures with a soldier of fortune named Jack. In Romancing the stone Joan goes to Colombia to save her sister who was kidnapped (绑架). In the sequel Joan goes to the fictional kingdom of Kadir set somewhere in the Middle East. Romancing the stone's scenes were shot mostly in Mexico. For Jewel of the Nile, the scenes were mostly shot in France and Morocco.The Telented Mr RipleyTom Ripley is a working class young man. Through a case of mistaken identity, he is asked togo to Italy to convince a wealthy businessman's son to come home. This travel movie starts in New York and heads to the fictional resort of Mongibello.The last section of the movie is filmed mostly in Rome and Naples. The locations are beautiful. They also did a good job of showing Italy as it lookedin the 1960s.1.If someone is interested in seeing views in Sri Lanka, he / she would most probably watch the film________.A. Temple of DoomB. The last CrusadeC. Raiders of the lost ArkD. Kingdom of the Crystal Skull2. From paragaph 2 we can know that the story of The Lord of the Rings ______.A. is the best movie made in NewlandB. was shot from Wellington to AucklandC. encouraged a 17-year-old boy to travel in New Zealand.D. caught the director's attention while he was travelling3. The movie The Talented Mr. Ripley tells us a story of a man who_______.A. owns a large amount of fortuneB. contributes to helping a man out of troubleC. goes sightseeing in Rome and NaplesD. becomes wealthy by always working hardBSome of the most painful moments I spend as a vet (兽医) are those spent with my customers assisting my animal patients from this world to the next. Making this final decision is not easy, and I have often felt powerless to comfort the sorrowful owners.That was before I met Shane.I had been called to examine a ten-year-old dog named Belker who had developed a serious health problem. The dog's owner—Ron, his wife, Lisa, and their little boy, Shane—were hoping for a miracle (奇迹). But I told the family there were no miracles left for Belker, and offered to perform the euthanasia (安乐死) for the old dog in their home. As we made the arrangements, Ron and Lisa told me they thought it would be good for the four-year-old Shane to observe the euthanasia. They felt Shane could leam something from the experience.The next day, I felt the familiar catch in my throat as Belker's family surrounded him.Shane seemed so calm, patting the old dog for the last time, that I wondered if he understood what was going on.A few minutes later, Belker slipped peacefully away. The little boy seemed to accept Belker's death without any difficulty or confusion. We sat together for a little while after Belker's death, wondering aloud about the sad fact that animal lives are shorter than human lives.Shane, who had been listening quietly, piped up: "I know why."Shocked, we all turned to him. What came out of his mouth next astonished me. I'd never heard a more comforting explanation.He said, "Everybody is born so they can learn how to live a good life: like loving everybodyand being nice, right?" The four-year-old continued, "Well, animals already know how to do that, so they don't have to stay as long."4.Shane's parents wanted Shane to witness the euthanasia mainly because ____.A. they hoped he could gain something from itB. they knew he hated to part with BelkerC. they wanted him to remember Belker foreverD. they intended him to learn to carry out euthanasia5. What can we learn from the third paragraph?A. Belker got sick mainly because of lack of care.B. There was no hope for Belker to recover but to suffer.C. Shane didn't feel sad about Belker's death.D. Belker didn't want to live any longer because of the pain.6. We can infer from the underlined sentence that____.A. words failed the vet when he tried to comfort Belker's familyB. the vet was familiar with the feelings of Belker's familyC. the vet would rather not perform the euthanasiaD. the vet's throat was uncomfortable with Belker's family around7. What would the author say about Shane?。

天水一中2017级2017-2018学年第二学期第二学段考试物理试题（理科）(满分：100 时间：90分钟)一、选择题：本题共14小题，每小题4分，共56分。

在每小题给出的四个选项中，第1—9题只有一项符合题目要求，第10—14题有多项符合题目要求。

全部选对的得4分，选对但不全的得2分，有选错的得0分。

1．自由下落的物体在下落过程中，其重力做功和重力势能变化的情况为( )A ．重力做正功，重力势能减小B ．重力做正功，重力势能增加C ．重力做负功，重力势能减小D ．重力做负功，重力势能增加2．下列关于力对物体做功的说法中正确的是 ( )A. 摩擦力对物体做功的多少与路径无关B. 合力不做功，物体必定做匀速直线运动C. 在相同时间内作用力与反作用力做功绝对值一定相等，一正一负D. 一对作用力和反作用力可能其中一个力做功，而另一个力不做功3．关于做功和物体动能变化的关系，正确的是（ ）A. 只要有动力对物体做功，物体的动能就增加B. 只要物体克服阻力做功，它的动能就减少C. 动力和阻力都对物体做功，物体的动能一定变化D. 力对物体做功的代数和等于物体的末动能与初动能之差4．宇宙飞船要与空间站对接，飞船为了追上空间站 （ ）A ．只能从较低轨道上加速B ．只能从较高轨道上加速C ．只能从空间站同一高度上加速D ．无论在什么轨道上，只要加速都行5. 如图所示，从倾角为α的斜面上的某点先后将同一小球以不同初速度水平抛出，均落在斜面上，当抛出速度为v 1时，小球到达斜面的速度方向与斜面的夹角为θ1；当抛出速度为v 2时，小球到达斜面时速度方向与斜面的夹角为θ2．则在不考虑空气阻力的情况下( )A ．θ1可能大于θ2B ．θ1可能小于θ2C ．θ1一定等于θ2D ．θ1、θ2的大小关系与斜面的倾角α有关6．如图所示，在水平面上，有一弯曲的槽道弧AB ，槽道由半径分别为2R 和R 的两个半圆构成，现用大小恒为F 的拉力将一光滑小球从A 点沿滑槽道拉至B 点，若拉力F 的方向时时刻刻均与小球运动方向一致，则此过程中拉力所做的功为( )A ．0B ．FRC.23πFR D ．2πFR7．如图所示，质量相同的两物体从同一高度由静止开始运动，A 沿着固定在地面上的光滑斜面下滑，B 做自由落体运动．两物体分别到达地面时，下列说法正确的是( )A ．重力的平均功率A >BB ．重力的平均功率A ＝BC ．重力的瞬时功率P A ＝P BD ．重力的瞬时功率P A <P B8．以一定的初速度竖直向上抛出一个小球，小球上升的最大高度为h ，空气阻力的大小恒为f ，则从抛出至回到原出发点的过程中，空气阻力对小球做的功为（ ）A. 0B. -fhC. -2fhD. 2fh9．两个物体之间的万有引力大小为F 1，若两物体之间的距离减少x ，两物体仍视为质点。

甘肃省天水市第一中学2017-2018学年高一下学期第二阶段考试英语试题（满分：100分时间：90分钟）第I卷（选择题，共60分）第一部分阅读理解（共15小题，每小题2分，满分30分）阅读下列短文，从每题所给的四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

AIf you see a group of people dancing and singing on the street or in the railway station, you don’t need to feel surprised. They are a flash mob（快闪族）. Who are they? Are they mobs? Don’t be confused by their name. Actually, a flash mob is a group of people who gather suddenly in a public place, do something unusual for a brief period of time, and then quickly disappear.They are usually organized with the help of the Internet or other digital communications networks. The messages may be sent to friends, who send to more people. At a predetermined time, they gather and perform some activities such as exchanging books, coming together to look at the sky, waving their hands and yelling something at the top of their voice for 30 seconds. Then, they quickly disappear before the police can arrive. Using mobile phones, the flash mob can change its place if the first one has been cancelled for any reason.Bill Wasik, senior editor of Harper’s Magazine, organized the first flash mob in Manhattan in May 2003 and the first successful flash mob gathered on June 3, 2003. Wasik said that he created the flash mob as a social experiment designed to laugh at fashion seekers and stress the cultural atmosphere of wanting to be an insider or part of “the next big thing”.Flash mob gatherings can sometimes shock people. Such an activity might seem amusing and magical, but it also might frighten people who are not aware of what is taking place. Undoubtedly, flash mob can serve as good political tools and have great potential, such as using flash mob to advertise a product.The flash mob is now becoming more and more popular. People use it to do many things. For example, in 2009, Michael Jackson’s fans took part in a flash mob to remember him. Hundreds of his fans gathered singing and dancing Michael’s famous song “Beat It”together. Flash mobs give people from all walks of life an opportunity to come together to create a memory.1. Where may you see a flash mob?A. In schools,B. In villages.C. In the railway stations.D. On the playground2. What is NOT the feature of the flash mob?A. It can get together quickly.B. It can change its place freely.C. It can do activities suddenly.D. It can injure people seriously.3. How do flash mobs communicate one another?①By using the Internet. ②By writing letters. ③By yelling.④By waving hands. ⑤By using mobile phones. ⑥By holding a meeting.A. ③④B.①⑤C.②④D.⑤⑥4. Why did Bill Wasik create the flash mob?A. To advertise some products.B. To help people make friends.C. To laugh at fashion seekers.D. To create some memories.5. Which of the following might be the best title of the passage?A. Flash mob: the political potentialB. Flash mob: the pop cultureC. Flash mob: the source of informationD. Flash mob: the short-term memory.BA typical school day in the UK starts around 8:30 am. This is often even earlier elsewhere in the world, with students siting down to their first lesson at 7:30 am in the US. The average teenager ideally needs eight to nine hours’sleep each night, but in reality a lot of teenagers struggle to get this much. A lot of the problems happen because our sleep patterns are not fixed, and they change as we grow.So a later school start time（推迟到校时间）could help to solve this problem, by ensuring to get their eight plus hours of sleep and react properly to their body's natural rhythms（规律）. There has been a general change over the past 25 years to shorten the school day, This is not at the costof teaching time (which has remained constant) but at the cost of natural breaks, which has led to reduced lunch time and lesson breaks.Later start times could help teens’grades and health. This is mainly because it makes the management of children easier. Managing hundreds of children “playing”requires effective staffing（人员配备）. And there is always the fear that behavior worsens during breaks. So the theory goes that having them in class and strictly managed must be better.But this means that students barely have enough time to absorb what they were doing in maths before suddenly they are forced to study ancient history. And teaching staff also move through from one class to another, with hardly a rest or time to refocus.Clearly rethinking the school day could benefit everyone included. Anyway, it could also lead to better achievement in teenagers and less of a struggle for parents in the mornings. For teachers, it could also mean a less stressful day all around and what could be better than that?6. At what time do the students start their first lesson in the US?A. 7:00B. 7:30C. 8:00 D: 8:307. How do schools often shorten the school day?A. They reduce children’s lunch time and lesson breaks.B. They reduce the teaching time.C. They properly adjust children’natural rhythms.D. They increase more holidays.8. What’s the purpose of the children’short lesson breaks according to the text?A. To manage children more easily.B. To make children quickly take in what they learned.C. To reduce children’s excitement.D. To make children behave better in class.9. What can we learn about later school start time from the text?A. It will add to the teacher’s pressure.B. It has always been there for 25 years.C. Parents may support it.D. It benefits the students only.10. What can be the best title for the text?A. The benefits of a less stressful day.B. The benefits of later school start time.C. How to solve teenagers’sleep problem.D. The reasons why teenagers sleep differently.CNo fashion event attracts the world quite like the Victoria’s Secret Fashion Show. In November 2017, more than 55 models came in Shanghai for the lingerie（内衣）maker’s first show in Asia. Victoria’s Secret cast eight Chinese models for the show, including Liu Wen, double the number that walked in 2016.Liu Wen, a Chinese fashion model, started her modeline career in 2005 after competing in the reality TV show New SilkRoad World Model Contest. Although she did not win the competition, Liu soon began working fulltime as a model, eventually, becoming a national success story after working with fashion magazines like V ogue and Harper’s Bazar that are popular in China, In 2007, she was signed to the Marilyn agency, and has since walked for Burbery, Givenchy, Chanel, Tom Ford, Proenza Schooler and Tommy Hilfiger.Liu walked a record 74 shows in New York, London, Milan and Paris for the autumn/winter 2009 season, followed by 70 for spring/summer 2010, making her the second most-booked catwalk model that year. She has also created a record of 15 international Vogue covers to date.In 2009, Liu became the first woman of Chinese walking in the. Victoria’s Secret Fashion Show. Liu also participated in the 2010-2012 shows. She returned to the Victoria’s Secret runway again in 2016.In the past, Liu has said that after modeling she might enjoy working as a stylist or, were the opportunity to arise, as an actress—she feels that modeling and acting have much in common, but for now she enjoys modeling and working in the fashion industry. She has stated that she knows that, as a career choice, working as a fashion designer or stylist would be “very hard work”, but she is now more seriously considering becoming a stylist because she would like “to share her fashion style—tomboyish, vintage, and comfortable—with the world”.11. How many times has Liu appeared in Victoria’s Secret Fashion Show?A. 4.B. 5.C. 6.D. 7.12. Which statement is NOT true?A. Liu created a record of 15 international V ogue covers.B. Liu walked 70 shows for the autumn/winter 2010 season.C. Liu returned to the Victoria’s Secret Fashion Show again in 2016.D. Liu didn’t win the New Silk Road World Model Contest in 200.13. Who will Liu want to be in the future?A. a stylistB. a film directorC. an agentD. a film cutter14. According to the passage, Liu Wen is ________.A. beautiful and patientB. successful and kindC. determined and smartD. hardworking and challenging15. Where can we most probably find this passage?A. In a poster.B. In a magazine.C. In a fashion show.D. In a book review.第二部分七选五（共5小题，每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。

天水市一中2016级2017-2018学年度第二学期第二学段考试生物试题（理科）（满分：100分时间：90分钟）一、选择题（40小题，每小题1分，共40分，每小题只有一个选项符合题意）1．一片草地上的所有蒲公英是一个A. 种群B. 群落C. 生态系统D. 生物圈2．每年的3月24日是“世界防治结核病日”。

结核病是由一种细菌引起的，该细菌不具有的结构或物质是A. 核糖体B. 细胞膜C. 核膜D. DNA3.下列四种物质中，属于构成生物体蛋白质的氨基酸是4．大肠杆菌细胞中，核苷酸有几种，遗传物质是什么。

A. 4种，核糖核酸B. 4种，脱氧核糖核酸C. 8种，核糖核酸D.8种，脱氧核糖核酸5．下列各项中，属于单糖的是A．果糖B．麦芽糖C．纤维素D．乳糖6．糖类、脂质、蛋白质、核酸共有的元素是A. H、O、NB.C. H、O C．C、H、O、ND. C、H、O、N、P 7．DNA分子中不含有的碱基是A．T B．A C．U D．G8．人的心肌细胞中含有最多的物质是A．蛋白质 B．水C．无机盐D．核酸9．下列关于植物细胞中的叶绿体的叙述中，正确的是A．没有叶绿体的细胞不能进行光合作用B．叶绿体是进行光合作用的场所C．叶绿体是具有单层膜结构的细胞器D．叶绿体是进行细胞呼吸的主要场所10．“绿叶中色素的提取和分离”的实验中，层析后使滤纸条上最宽的色素带是A. 叶绿素aB. 叶绿素bC. 叶黄素D. 胡萝卜素11．下图可表示—个完整细胞周期的是A. a→cB. b→dC. b→cD. e→f12．下图是某物质跨膜运输的示意图，该物质可能是A. H20B. C02C. K+D. O213．ATP是细胞的能量“通货”。

下列相关叙述正确的是A. ATP中的A代表腺嘌呤B. A TP中的T代表胸腺嘧啶C. A TP的结构简式可表示为A—P～P～PD. ATP中靠近A的高能磷酸键易水解14．如图曲线b表示在最适温度、最适pH条件下，反应物浓度与酶促反应速率的关系．据图分析正确的是A．酶量是限制曲线AB段反应速率的主要因素B．酶量减少后，图示反应速率可用曲线a表示C．升高温度后，图示反应速率可用曲线c表示D．减小pH，重复该实验，A、B点位置都不变15．叶绿体中的叶绿素主要吸收A．绿光B．黄光C．蓝紫光和红光D．紫外线16．下列过程不消耗A TP的是A．水分子通过半透膜B．草履虫细胞一分为二C．萤火虫发光D．人的骨骼肌收缩17．如图是一个正在发生质壁分离的洋葱表皮细胞，下列有关叙述不正确的是A．①是全透性的细胞壁B．原生质层包括②③④三部分C．⑤处颜色因细胞失水正在变浅D．⑥处充满外界溶液18．下列细胞可能癌变的是A. 细胞膜上的糖蛋白减少B. 核增大、染色体固缩C. 膜通透性增大、运输能力降低D. 酶活性降低19．某些试剂能使生物组织中的有关化合物产生特定的颜色反应，以下关于试剂、化合物、颜色反应搭配错误的是A. 斐林试剂—还原糖—砖红色B. 苏丹Ⅲ染液—脂肪—橘黄色C. 健那绿试剂—线粒体—蓝绿色D. 甲基绿—RNA—绿色20．下列有关细胞分化的叙述，不正确的是（）A. 细胞分化的实质是基因的选择性表达B. 高度分化的植物细胞具有全能性C. 细胞分化过程中遗传物质发生改变D. 经过细胞分化会形成各种不同的细胞21．孟德尔基因分离定律的实质是A．减数分裂形成配子时，等位基因随同源染色体的分离而分离B．减数分裂形成配子时，相对性状随同源染色体的分离而分离C．减数分裂形成配子时，等位基因随非同源染色体的分离而分离D．减数分裂形成配子时，相对性状随非同源染色体的分离而分离22．甲型血友病是一种伴X隐性遗传病，女性携带者和正常男性结婚，生育的儿子患甲型血友病的概率是A. 1/16B. 1/4C. 3/8D. 1/223．如图为某种动物的一个卵细胞的染色体组成示意图，下列分析错误的是A．该细胞中有4个染色体B．该细胞中有4个DNA分子C．该细胞中有2对同源染色体D．该动物体细胞中有4对同源染色体24．某双链DNA分子片段含有300个碱基，其中碱基A有80个,则碱基C的个数是A. 70B. 80C. 150D. 30025．下列一定不能表示白化病遗传（图中深颜色表示患者）的系谱图是A B C D26．下列属于相对性状的是A. 兔的长毛与卷毛B. 人的身高与体重C. 豌豆种子的黄色与圆粒D. 山羊的黑毛与白毛27．孟德尔发现“分离定律”和“自由组合定律”主要应用了A. 模型建构法B. 类比推理法C. 同位素标记法D. 假说—演绎法28．下列有关基因的叙述，错误的是A．染色体是基因的主要载体 B.染色体就是由基因组成的C. 基因在染色体上呈线性排列D.基因是具有遗传效应的DNA片段29．对某植物进行测交，得到的后代基因型为Rrbb和RrBb，则该植物的基因型为（）A. RRBb B. RrBb C. rrbb D. Rrbb30．下列表示纯合子基因型的是A.AabbB.AaBbC.aaBbD.AAbb31．艾弗里进行肺炎双球菌转化实验时。