2019-2020年云南省昆明市(一统)质检一：昆明市2019届高三第一次质量检测文综地理试题-含答案
【解析】云南省昆明市2019届高三复习教学质量检测英语试卷
Type: Adventure
Running Time: 134 min.
Release Date: February 16, 2018
Current rank:★★★★
Director: Ryan Coogler
Actors: Chadwick Boseman, Michael B. Jordan
A Star is Born
Type: Musical
Running Time: 135 min.
Release Date: October 5, 2018
Current rank:★★★★
Direct: Bradley Cooper
Actors: Bradley Cooper, Lady Gaga
When country music star Jackson Maine stops at a bar for a drink after a concert, he’s both entertained and attracted by young nightclub singer Ally. He discovers that she writes songs as well as being a talented singer, but hasn’t had a break because of her looks.
1.Which film is the least popular among audience?
A.Black Panther.B.The Favorite.
C.Green Book.D.A Star is Born.
2.The film about the rights of black people belongs to.
2019-2020学年昆明市第一中学高三英语第一次联考试卷及答案
2019-2020学年昆明市第一中学高三英语第一次联考试卷及答案第一部分阅读（共两节，满分40分）第一节（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A、B、C、D四个选项中选出最佳选项ABest of British：Outdoor CinemasLuna Beach Cinema, BrightonOn the beaches of Brighton this summer, you can enjoy the lapping of waves as you take inFinding Dory, Moana and Sharknadoover a month-long residency. This spot boasts the highest definition outdoor LED screen in the country. stretching to an impressive 33 feet!Moonlight Flicks, ChesterThe biggest outdoor cinema in the North West of England, Moonlight Flicks will be showing some serious blockbusters（大片）this summer, including A Star Is Born and singalong crowd-pleaser, The Greatest Showman. Cinephiles can gather on the lawn and plug into wireless headphones to ensure perfect sound quality.Rooftop Film Club, LondonEnjoy cult classics and family favorites while looking out on a view of London's skyline with the city's unique Rooftop Film Club. The current programme only runs until June 30 and our top picks include The Breakfast Club, Fargo and a special 65th anniversary showing of Rear Window.Chirk Castle, Wrexham, North WalesThe 11th-century Chirk Castle was first built under the reign o£ Edward I, but now it's the destination for Silly Walk superfans, as they put on screenings of the cult classic, Monty Python and the Holy Grail. Has there ever been a more perfect surrounding to enjoy the comedy capers of King Arthur and his dozy squire?1. What can you enjoy in the biggest outdoor cinema in the North West of England?A.Finding DoryB.A Star Is BornC.The Breakfast ClubD.Monty Python and the Holy Grail.2. Where can you enjoy a special anniversary show?A. Luna Beach Cinema, Brighton.B. Moonlight Flicks, Chester.C. Rooftop Film Club, London.D. Chirk Castle, Wrexham, North Wales3. What's the purpose of writing the text?A. To encourage summer activities.B. To advertise several cult classics.C. To recommend some blockbusters.D. To introduce outdoor cinemas.BA 25-year-old American with a university degree can expect to livea decade longer than a peer who dropped out of high school. Although researchers have long known that the rich live longer than the poor, this education gap is less well documented. And although the average American’s expected span(预期寿命) has been smooth in recent year—and, shockingly, even fell between 2015 and 2017—that of the one-third with a bachelor’s degree has continued to lengthen.This gap in life expectancy is growing, according to new research published in the report of the National Academy of Sciences. Anne Case and Angus Deation ofPrincetonUniversityfound that the lifespans of those with and without a bachelor’s degree started to become different in the 1990s and 2000s. This gap grew even wider in the 2010s.What is the link between schooling and longevity(长寿)? Some argue that better-educated people develop healthier lifestyles: each additional year of study reduces the chances of being a smoker and of being overweight. The better-educated earn more, which in turn is associated with greaterhealth.Ms Case and Mr Deaton argue that changes in labor markets, including the rise of automation and increased demand for highly-educated workers, coupled with the rising costs of employer-provided health care, have decreased the supply of well-paid jobs for those without a degree. This may be contributing to higher rates of alcohol and drug use, suicide and other “deaths of despair”.The authors argued that the educational gap in mortality(致死率) will widenin the wake ofthe covid-19 pandemic. ForAmerica’s overall life expectancy to start climbing again, improvements will be needed across all social groups, not just among the privileged few.4. When did the lifespans of people with and without a degree vary greatly?A. In the 1990s.B. In the 2020sC. In the 2000sD. In the 2010s5. According to the article, changes in labor markets reduce jobs for those without a degree. Which change is NOT included?A. The rising spending of employer-provided health care.B. The gap in life expectancy.C. Raised request for better-educated workers.D. The development of automation.6. What does the underlined phrase “in the wake of” probably mean ?A. afterB. untilC. beforeD. while7. What is the best title for the text?A. Changes in labor market.B. Quit bad habits by Further studyC. Educated Americans live longer.D. Highly-educated people develop healthier lifestyles.CShanghairesidents passing through the city’s eastern Huangpu district in Octobermight have astonished at an unusual sight: a “walking” building. An 85-year-old primary school has been lifted off the ground in its entirety and relocated using new technology named the “walking” machine.In the city’s latest effort to preserve historic structures, engineers used nearly 200 mobile supports under the five-story building. The supports act like robotic legs. They’re split into two groups which in turns rise up and down, imitating the human step. Attached sensors help control how the building moves forward.TheLagenaPrimary School, which weighs 7,600 tons, faced a new challenge — it’s T-shaped, while previously relocated structures were square or rectangular. Experts and technicians met to discuss possibilities and test a number of different technologies before deciding on the “walking machine”.Over the course of 18 days, the building was rotated 21degrees and moved 62 meters away to its new location. The old school building is set to become a center for heritage protection and cultural protection. The project marks the first time this “walking machine” method has been used inShanghaito relocate a historical building.In recent years,China’s rapid modernization has seen many historic buildingsrazedto clear land for skyscrapers and office buildings. But there has been growing concern about the architectural heritage loss as a result of destruction across the country.Shanghaihas beenChina’s most progressive city when it comes to heritage preservation. The survival of a number of 1930s buildings in the famous Bund district and 19th-century “Shikumen” houses in the repaired Xintiandi neighborhood has offered examples of how to give old buildings new life. The city also has a track record of relocating old buildings. In 2018, the city relocated a 90-year-old building in Hongkou district, which was then considered to beShanghai’s most complex relocation project to date.8. How did the primary school get moved?A. By reducing the weight of it.B. By using movable supports.C. By dividing it into several parts.D. By using robotic legs.9. What does the underlined word “razed” probably mean in Paragraph 5?A. Replaced.B. Burnt.C. Protected.D. Destroyed.10. What can we infer about the heritage preservation inChina?A. The use of advanced technology leads to growing concern.B. Shanghai is the pioneer in preserving architectural heritage.C.A number of old buildings have been given new life.D. Many historic buildings will be relocated.11. What is the passage mainly about?A. New preservation campaigns are launched inChina.B. New technology gives new life to historic buildings.C. A building inShanghai“walks” to a new location.D. “Walking machine” makes heritage protection simpler.DMy school appeared on the news last week because we had made an important change in our local area. Our class had planted a large garden in what was once only a vacant lot. It was a lot of work but it was all worth it. I got blisters(水泡) from digging, and we all got insect bites, too.I learned a lot about gardening and collaboration(合作), and then I learned about the media. Our teacher telephoned the TV station and informed them of what we had accomplished. She spoke with the producer. The producer checked with the directors, but they said there were plenty of stories similar to ours. They wanted to know what was special about our particular garden, since many schools plant them.The teacher explained that, after going on the Internet to learn about the prairie(大草原), we had made a prairie garden. We had gone to a prairie and gotten seeds from the plants, and then we planted them. We did not water the garden, but we did weed it. We decided to let nature water it with rain, since that was how prairiesgrew in the past. We sent a picture of the garden to the news station. In the picture, the grass was so high that it stood taller than the fourth grade students.As a result, the producer sent a reporter to our school. He interviewed the headmaster and asked him many questions about the garden. After that, they interviewed us, and we explained to them what we had learned through this project.That night, we watched the news, and there we were. The news reporter told our story. It was only two minutes long, but it was us. We were famous. All that work, all those blisters, it was worth it. We knewthatwhen we saw the garden every day, but now we knew that the whole city thought so, too.12. What seemed to be the TV directors’ initial reaction to the garden?A. They were excited.B. They were surprised.C. They were worried.D. They were uninterested.13. What is special about the garden?A. Weeds were allowed to spread naturally.B. The grass grew faster than common grass.C. The seeds came from the plants of a prairie.D. Underground water was used for the plants.14. What does the underlined word “that” refer to in the last paragraph?A. We got blisters on our hands.B. Our hard work was worthwhile.C. The garden would be famous.D. The project would be finished.15. How did the author feel about the project?A. Annoyed.B. Curious.C. Proud.D. Regretful.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2019—2020学年度云南省昆明市第一学期高三期末检测理综物理部分高中物理
2019—2020学年度云南省昆明市第一学期高三期末检测理综物理部分高中物理理科综合试卷物理部分第一卷〔选择题〕二、选择题〔此题包括8小题，每题6分，共48分。
在每题给出的四个选项中，有的小题只有一项正确，有的小题有多个选项正确，全部选对得总分值，选不全的得3分，有选错或不选的得0分〕14．分子动理论讲明，分子间同时存在着引力和斥力，当分子间的距离为r 0时，分子间的引力和斥力相等。
以下讲法正确的选项是〔 〕A ．分子间的引力和斥力都随分子间距离的增大而增大B ．分子间的引力和斥力都随分子间距离的增大而减小C ．分子间距离为r 0时，分子具有最小势能，且分子间距离增大或减小时分子势能都变大D ．分子间距离为r 0时，分子具有最大势能，且分子间距离增大或减小时分子势能都变小15．a 、b 是一条水平绳上相距l 的两点，一列简谐横波沿绳传播，其波长等于l 52，当a 点通过平稳位置向上运动时，b 点〔 〕A ．通过平稳位置向上运动B ．通过平稳位置向下运动C ．处于平稳位置上方最大位移处D ．处于平稳位置下方最大位移处16．关于热现象，以下讲法正确的选项是〔 〕A ．气体压强是大量气体分子碰撞器壁产生的B ．布朗运动是悬浮在液体中固体颗粒的分子无规那么运动的反映C ．第二类永动机是不可能制成的，因为它违反了能量守恒定律D ．一定质量的气体，当气体膨胀时，气体分子势能减小，因而气体内能减少17．如以下图所示为一固定的内壁光滑的圆维筒，其轴线OO ′是竖直的，两个质量相同的小球a 、b 分不沿圆锥筒内壁在水平面内做半径为R 1和R 2的匀速圆周运动，R 1<R 2。
假设以1N F 、2N F 分不表示锥面对a 、b 的作用力，T 1、T 2分不表示a 、b 做匀速圆周运动的周期，那么〔 〕A ．21N N F F <B ．21N N F F =C ．T 1>T 2D ．T 1<T 218．如以下图所示，由同一高度同时开释质量相等的A 、B 两个小球，A 球沿固定的光滑曲面由静止下滑，B 球做自由落体运动。
2019届昆明市高三第一次市统测理科综合答案
理科综合（化学）参考答案及评分标准·第 1页（共 2页）
36．（15 分，除特殊标注外，每空 2 分）
（1）
CH3 （1 分） 13 （1 分） 加成反应（1 分）
（2）间甲基苯酚（或 3-甲基苯酚） 醛基、醚键
CH2Cl
CH2OH
（3）
+ 2NaOH OH
+ NaCl + H2O ONa
（4）保护酚羟基
昆明市 2019 届高三复习诊断测试
理科综合（化学）参考答案及评分标准
一、选择题
题号
7
8
9
10
11
12
13
答案
A
C
B
A
C
D
D
二、非选择题 26.（14 分，除特殊标注外，每空 2 分） （1）适当加热或不断搅拌（合理即可）
（2）6KOH + KClO3 + 3MnO2
KCl + 3K2MnO4 + 3H2O
（6）酸式
溶液变蓝且半分钟内不褪色 75.00%
35.（15 分，除特殊标注外，每空 1 分）
（1）第五周期 VIB 族（1 分）
（2）N > O > S
sp3
42（1 分）
O（1 分）
（3）层与层之间的范德华力较弱，外力作用下易发生滑动
（4）0（1 分） （5）体心立方
1：2（1 分）
2 4 （r 10 ） 10 3 3 2M N A
（5）6 HOH2C
NH2 CH2OHCH3NH2H3CCH3
OCH2OH （任意一种即可）
NH2
NH2
HOH2C H3C
CH2OH CH3
云南省2019届高三下学期第一次统测语文试题及答案
2019年云南省第一次高中毕业生复习统一检测语文试题本试题卷共10页，22题。
全卷满分150分。
考试用时150分钟。
★祝考试顺利★【注意事项】1．答卷前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
2．选择题的作答：每小题选出答案后，用合乎要求的2B铅笔把答题卡上对应题目的答案标号涂黑。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4．选考题的作答：先把所选题目的题号在答题卡上指定的位置用2B铅笔涂黑。
答案写在答题卡上对应的答题区域内，写在试题卷、草稿纸和答题卡上的非答题区域均无效。
5．考试结束后，请将本试题卷和答题卡一并上交。
一、现代文阅读（35分）（一）论述类文本阅读（9分，每小题3分）阅读下面的文字，完成1-3题。
公元前11世纪，武王伐纣，建立了周王朝。
两年后，武王去世，周公摄政。
周公分析了殷代列王的为政之道，得出了殷亡于“失德”的结论。
鉴于此，他提出了施行“德政”的政治纲领。
而要保证“德政”的实施，首先是要建立一套全新的政治制度，其次是要为统治者制订一套系统的行为规范。
二者可以统称为“礼”。
这是一场比武王克商意义还要重大的革命。
风俗的转换要比政权的转换困难得多，也复杂得多。
如何移风易俗？儒家认为，应该“因俗制礼”，即尽可能利用既有风俗的形式和内在的合理部分，再加整理、提高，注入新的精神，如此方可使人民喜闻乐见，被其所化。
因此，《周礼》中的大司徒官政之法有几条很重要的原则：一是“辨五地之物生”，全国的土地可以大体分为山林、川泽、丘陵、坟衍、原隰五类，其物产及居民的体质特征也各不相同，这是为政者首先要分辨的；二是“因此五物者民之常，而施十有二教焉”，辩明上述五类地区，目的在于摸清各自的风俗，然后才可以藉此而施以“十二教”礼仪；三是“以本俗六安万民”，要沿袭当地原有的宫室、族葬、衣服等六类旧俗，使人民安于其居。
2019届云南省高三下学期第一次复习统一检测(含答案)
2019年云南省第一次高中毕业生复习统一检测语文试题注意事项：1．答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上。
2．选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4．考试结束后，请将本试卷和答题卡一并上交。
一、现代文阅读（36分）（一）论述类文本阅读（本题共3小题，9分）阅读下面的文字，完成1～3题。
文化相对主义是看待不同民族文化的主要视角之一。
文化相对主义是针对文化普遍主义提出的，后者认为欧洲文化是超越民族和国家的世界文化标准，其他文化只有进化为欧洲文化才会走出野蛮、步入文明。
与之相较，文化相对主义放弃从整体的角度对文化进行把握，认为每个民族文化都具有其合理性，文化的价值不是外在的而是内在的；文化相对主义反对文化形态间进行优劣比较，强调文化间不可比较的独特性和文化价值的多样性，提倡尊重文化差异。
文化相对主义为人们客观地认识多元的民族差异及历史演进提供了理论基础。
在文化全球化的今天，为后发达地区增强文化自信、保持文化独立和对抗“文化殖民主义”提供了理论支撑和文化逻辑。
然而，就文化本身来看，文化相对主义也有其局限。
在文化的产生和延续上，文化相对主义认为文化因其特定的空间性和时间性而有特殊的个性，文化的产生和发展是人完全适应客观环境的结果。
一方面，这种观念忽略了文化创造主体的能动性。
人的自我实现是文化产生的动力，也是文化的归宿。
人在对自然的理性超越中，采取具有目的性和创造性的实践活动，在改变环境的同时塑造了人自身，从而产生了文化。
作为文化主体的人不断冲破各种障碍、超越自我，逐渐实现人的自身价值。
另一方面，文化相对主义忽视了文化的创造性和自我超越性品格。
作为人实践活动的产物，文化表现为一定的历史性，并在一定程度上决定了人当下的行为方式。
2019—2020学年度云南省昆明市高三复习教学质量检测理综物理部分高中物理
2019—2020学年度云南省昆明市高三复习教学质量检测理综物理部分高中物理理科综合能力测试物理部分本试卷分第I 卷〔选择题〕和第II 卷〔非选择题〕两部分。
考试终止后将本试卷和答题卡一并交回。
总分值300分，考试用时l 50分钟。
第一卷〔选择题 共126分〕本卷须知：1．答题前，考生务必用黑色碳素笔将自己的姓名、考号在答题卡上填写清晰，并认真核准条形码上的考号、姓名，在规定的位置贴好条形码。
2．每题选出答案后，用2B 铅笔把答题膏上对应题目的答案标号涂黑。
如需改动，刚橡皮擦擦洁净后，再选涂其它答案标号。
答在试卷上的答案无效。
可能用到的相对原子质量：H 1 C 12 N 14 O 1 6本卷共21小题，每题6分，共126分。
二、选择题〔此题包括8小题，每题6分，共48分。
在每ih 题给出的四个选项中，有的小题只有一项正确，有的小题有多个选项正确，全部选对得总分值，选不全的得3分，有选错或不选的得0分〕14．关于原子和原子核，以下讲法正确的选项是〔 〕A ．n Sr Xe n U 1094381405410235922++→+是裂变方程B ．卢瑟福通过对α粒子散射实验结果的分析发觉了电子C ．汤姆生通过对阴极射线的分析提出了原子的核式结构D ．以m D 、m P 、m n 分不表示氘核、质子、中子的质量，那么m D =m P +m n15．假设以M 表示氧气的摩尔质量，ρ表示标准状态下氧气的密度，N A 表示阿伏伽德罗常数，那么 〔 〕A ．氧气分子的质量为AN M B ．在标准状态下每个氧气分子的体积为A N M ρC ．单位质量的氧气所含分子个数为M N AD ．在标准状态下单位体积的氧气所含分子个数为ρM N A 16．在研究地、月组成的系统时，假设月球绕地球做匀速圆周运动，地球到月球的距离远大于它们的半径。
现从地球向月球发射激光，测得激光往返时刻、月球绕地球运转的周期，万有引力常量和光速。
云南省昆明市2019届高三复习教学质量检测英语试卷附答案解析
昆明市2019届高三复习教学质量检测英语试题第一部分阅读理解（共两节，满分40分）第一节（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A、B、C和D四个选项中，选出最佳选项。
A2019 Oscars Academy Award Nominees (提名) for Best PictureBlack PantherType: AdventureRunning Time: 134 min.Release Date: February 16, 2018Current rank: ★★★★Director: Ryan CooglerActors: Chadwick Boseman, Michael B. JordanWith his father having died in Captain America: Civil War, T’Challa is the new ruler of the advanced kingdom of Wakanda. As the king, whenever a challenger for the crown announces his intentions, he must give up his powers and take them on in a physical challenge.The FavoriteType: DramaRunning Time: 120 min.Release Date: November 30, 2018Current rank: ★★★Director: Yorgos LanthimosActors: Emma Stone, Rachel WeiszIn the early 18th century, with England and France at war, a fragile Queen Anne occupies the throne as her close friend Lady Sarah Churchill governs the country in her stead, while tending to Anne’s ill health and changeable temper. Green BookType: DramaRunning Time: 130 min.Release Date: November 21, 2018Current rank: ★★★★★Director: Peter FarrellyActors: Viggo Mortensen, Mahershala AliTony Lip, an uneducated Italian-American who’s known for using his fists to get his way, is hired to driveworld-class, famous pianist Don Shirley on a concert tour from Manhattan to the Deep South. They must rely on the “Negro Motorist Green Book” to guide them to the few settlements that were then safe for blacks.A Star is BornType: MusicalRunning Time: 135 min.Release Date: October 5, 2018Current rank: ★★★★Direct: Bradley CooperActors: Bradley Cooper, Lady GagaWhen country music star Jackson Maine stops at a bar for a drink after a concert, he’s both entertained and attracted by young nightclub singer Ally. He discovers that she writes songs as well as being a talented singer, but hasn’t had a break because of her looks.1. Which film is the least popular among audience?A. Black Panther.B. The Favorite.C. Green Book.D. A Star is Born.2. The film about the rights of black people belongs to .A. adventureB. musicalC. dramaD. comedy3. Who works as a director and actor?A. Ryan Coogler.B. Yorgos Lanthimos.C. Peter Farrelly.D. Bradley Cooper.【答案】1. B 2. C 3. D【解析】本文属于应用文，介绍了四部提名2019年奥斯卡最佳电影的相关信息。
精品解析：云南省昆明市第一中学2019-2020学年高三第一次摸底测试理综物理试题(解析版)
昆明第一中学2020届高中新课标高三第一次摸底测试理科综合试卷二、选择题:本大题共8小题，每小题6分。
在每小题给出的四个选项中，第14~18题只有一个选项符合题目要求，第19~21题有多项符合题目要求。
全部选对的得6分，选对但不全的得3分，有选错的得0分。
1.以下叙述正确的是A.紫外线照射到金属锌板表面时能够发生光电效应，则当增大紫外线的照射强度时，从锌板表面逸出的光电子的最大初动能也随之增大B.有10个放射性元素的原子核，当有5个原子核发生衰变所需的时间就是该放射性元素的半衰期C.氢原子的核外电子由较高能级跃迁到较低能级时，会辐射一定频率的光子，同时氢原子的电势能减小，电子的动能减小D.重核的裂变和轻核的聚变过程都有质量亏损，都向外界放出核能【答案】D 【解析】【详解】A.紫外线照射到金属锌板表面时能够发生光电效应，从锌板表面逸出的光电子的最大初动能与频率有关，与光强无关.故选项A 不符合题意.B.放射性元素的半衰期是统计概念，需要对大量原子核才有意义.故选项B 不符合题意.C.氢原子的核外电子由较高能级跃迁到较低能级时，会辐射一定频率的光子，同时氢原子的电势能减小，电子的动能增大.故选项C 不符合题意.D.重核的裂变和轻核的聚变过程都有质量亏损，都向外界放出核能.故选项D 符合题意.2.如图所示，质量为m 的钢球静止于两光滑木板,a b 之间。
已知两木板的夹角45,a α︒=木板与水平方向的夹角45β︒=，则钢球对,a b 板的压力大小,a b F F 分别是A.,a b F mg F mg ==B.,2a b F mg F mg==C.22,22b F mg F mg ⋅==D.2,a b F mg F mg==【答案】D 【解析】【详解】对钢球受力分析，作出受力分析图所示：根据共点力平衡条件可知，F b cos 45°+mgcos 45°=F a F b sin 45°=mgsin 45°。
云南省昆明市第一中学2019-2020学年高三第一次摸底测试理综物理试题(解析版)
昆明第一中学2020届高中新课标高三第一次摸底测试理科综合试卷二、选择题:本大题共8小题，每小题6分。
在每小题给出的四个选项中，第14~ 18题只有一个选项符合题目要求，第19~21题有多项符合题目要求。
全部选对的得6分，选对但不全的得3分，有选错的得0分。
1.以下叙述正确的是A. 紫外线照射到金属锌板表面时能够发生光电效应，则当增大紫外线的照射强度时，从锌板表面逸出的光电子的最大初动能也随之增大B. 有10个放射性元素的原子核，当有5个原子核发生衰变所需的时间就是该放射性元素的半衰期C. 氢原子的核外电子由较高能级跃迁到较低能级时，会辐射一定频率的光子，同时氢原子的电势能减小，电子的动能减小D. 重核的裂变和轻核的聚变过程都有质量亏损，都向外界放出核能 【答案】D 【解析】【详解】A.紫外线照射到金属锌板表面时能够发生光电效应，从锌板表面逸出的光电子的最大初动能与频率有关，与光强无关.故选项A 不符合题意.B.放射性元素的半衰期是统计概念，需要对大量原子核才有意义.故选项B 不符合题意.C.氢原子的核外电子由较高能级跃迁到较低能级时，会辐射一定频率的光子，同时氢原子的电势能减小，电子的动能增大.故选项C 不符合题意.D.重核的裂变和轻核的聚变过程都有质量亏损，都向外界放出核能.故选项D 符合题意.2.如图所示，质量为m 的钢球静止于两光滑木板,a b 之间。
已知两木板的夹角45,a α︒=木板与水平方向的夹角45β︒=，则钢球对,a b 板的压力大小,a b F F 分别是A. ,a b F mg F mg ==B. ,a b F mg F =C. ,22b F mg F mg ⋅==D. ,a b F F mg == 【答案】D 【解析】【详解】对钢球受力分析，作出受力分析图所示：根据共点力平衡条件可知，F b cos 45°+mgcos 45°=F a F b sin 45°=mgsin 45°解得：a F =b F mg =故D 正确，ABC 错误.。
云南省2019年高中毕业生第一次统一复习检测理综试题
云南省2019届高三第一次复习统测届高三第一次复习统测理 综 试 题本试卷分第I 卷（选择题）和第II 卷（非选择题）两部分，考试结束后只交答题卡。
满分300分，考试用时150分钟。
分钟。
第Ⅰ卷（选择题，共126分）分）考生注意：考生注意：1．答题前，考生务必用黑色碳素笔将自己的班级、姓名、考号在答题卡上填写清楚。
．答题前，考生务必用黑色碳素笔将自己的班级、姓名、考号在答题卡上填写清楚。
2．作答时，考生务必用2B 铅笔、黑色碳素笔将第I 、II 卷的答案答在答题卡上相应位置，答在试卷上的答案无效。
试卷上的答案无效。
相对原子质量：H-1 C-12 N -14 O-16 Mg-24 Ca-40 Fe-56 Cu-64 Ti-48 本卷共21小题，每小题6分，共126分。
分。
一、选择题：本大题共13小题。
在每小题给出的四个选项中，只有一项是符合题目要求的小题。
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．生物膜将真核细胞分隔成不同的区室，使得细胞内能够同时进行多种化学反应，而不会相互干扰。
下列叙述正确的是下列叙述正确的是A ．生物膜由外到内依次由糖被、蛋白质、磷脂双分子层构成．生物膜由外到内依次由糖被、蛋白质、磷脂双分子层构成B ．溶酶体和高尔基体在行使功能时可能伴随膜组成成分的更新．溶酶体和高尔基体在行使功能时可能伴随膜组成成分的更新C ．细胞膜功能的复杂性与磷脂分子密切相关．细胞膜功能的复杂性与磷脂分子密切相关D ．溶酶体能合成和分泌多种酸性水解酶．溶酶体能合成和分泌多种酸性水解酶2．下面的曲线是同一反应的酶促反应和非酶促反应曲线，相关叙述正确的是．下面的曲线是同一反应的酶促反应和非酶促反应曲线，相关叙述正确的是A ．E 1是酶促反应的活化能，A 和C 曲线是酶促反应曲线曲线是酶促反应曲线B ．E 2是酶促反应的活化能，B 和D 曲线是酶促反应曲线曲线是酶促反应曲线C ．E 3是酶促反应的活化能，B 和C 曲线是酶促反应曲线曲线是酶促反应曲线D ．E 2是酶促反应的活化能，A 和C 曲线是酶促反应曲线曲线是酶促反应曲线 3．下列科学实验研究中的有关分析正确的是．下列科学实验研究中的有关分析正确的是A ．在调查种群密度时，若田鼠被捕捉过一次后更难捕捉，则估算出的种群密度比实际低．在调查种群密度时，若田鼠被捕捉过一次后更难捕捉，则估算出的种群密度比实际低B ．探究促进生根的最适NAA 浓度需要做预实验，其目的是排除无关变量的影响浓度需要做预实验，其目的是排除无关变量的影响C ．种群数量的变化可利用数学模型描述、解释和预测．种群数量的变化可利用数学模型描述、解释和预测D ．土壤中某种小动物个体总数下降则该地物种丰富度随之下降．土壤中某种小动物个体总数下降则该地物种丰富度随之下降4．下图示为健康人体内睾丸中的一个精原细胞经过两次正常分裂形成四个细胞的过程图解。