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2018届云南省曲靖一中西南名校联盟高三适应性月考卷(八)英语试题

2018届云南省曲靖一中西南名校联盟高三适应性月考卷(八)英语试题
2018届云南省曲靖一中西南名校联盟高三适应性月考卷(八)英语试题

2018届云南省曲靖一中西南名校联盟高三适应性月考卷(八)英语试

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,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

A

Lille, France

This charming European town is just one hour from Paris and the most exciting art destination of the moment. The spring weather here is delightful, ideal for strolling around on the cobblestoned streets. The city government has poured money into public art projects such as Lille 3000, a group of indoor and outdoor art exhibitions, as well as a wonderful modern art museum.

Shanghai, China

The Chinese city continues to grow rapidly, with popular restaurants and bars, world-class shopping, and five-star hotels. The weather is incredibly pleasant in May—the spring rains have passed, but the summer humidity is around the corner. And come here before the crowds decrease in June for the opening of the Shanghai Disney Resort, which is sure to be popular for families during the summer break.

Malta

The small European island gained some major screen time recently owing to the setting for Brad Pitt and Angelina Jolie’s By the Sea( the movie was shot in Malta and its sister island, Gozo). Stay at the Corinthia Palace, a fantastic home base for touring the medieval town, beaches, ancient temples, and Maltese vineyards. The tourists really begin to decrease in June, so beat the crowds in May to get the beaches to yourself.

Canggu, Bali

Balis beaches attract all types of sun worshippers, but surfers know to head to Canggu, a town on the island’s southwestern coast. Lately, it’s beco me a destination for more than its breaks, with the opening of vegetarian-focused restaurants, Australian-style cafes, and fantastic hotels like the Fri Bali Echo Beach. In May, Deus, a mixed-use space that includes a restaurant, music venue, and art gallery, hosts a major surf competition, bringing together professionals and amateurs for a fun-filled weekend.

1. If you want to have fun with your family in Disney Resort, you had better travel to .

A. Shanghai, China

B. Malta

C. Lille, France

D. Canggu, Bali

2. From the passage we can know that .

A. Lille is the most exciting art destination with the weather delightful all the year around

B. The summer humidity’s arrival makes Shanghais weather in May incredibly pleasant

C. More tourists go to the beaches in Malta to enjoy themselves in June

D. Canggu is a good destination for surfers to live a happy weekend

3. Which column of a paper can we possibly read this passage in?

A. Sports Column.

B. News Column.

C. Travel Column.

D. Business Column.

B

Stephen Hawking, the world-known physicist, died peacefully at the age of 76 at his home in Cambridge in the early hours of Wednesday, March 14th, 2018. The British scientist was famous for his work with black holes and relativity, and wrote several popular science books including his most famous book, A Brief History of Time , which has now shot to the top of the Amazon Best Sellers list.

At the age of 21 Prof Hawking was given only a few years to live after being diagnosed with a rare form of motor neurone disease( 运动神经元病). The illness left him in a wheelchair and largely unable to speak except through a voice synthesizer(合成器).

Prof Hawking was the first to set out a theory of cosmology(宇宙学) as a union of relativity and quantum mechanics(量子力学). He also discovered that black holes leak energy and fade to nothing—a phenomenon that would later become known as Hawking Radiation. Through his work with mathematician Sir Roger Penrose he demonstrated that Einstein’s general theory of relativity implies space and time would have a beginning in the Big Bang and an end in black holes.

The scientist also gained popularity outside the academic world and appeared in several TV shows including The Simpsons, Red Dwarf and The Big Bang Theory. He was portrayed in both TV and film—recently by Oscar winner Eddie Redmayne in The Theory of Everything, which charted his rise to fame and relationship with his first wife, Jane.

The Motor Neurone Disease Association, of which Prof Hawking had been a sponsor since 2008, reported that its website had crashed because of an infux of donations to the charity.

4. From the passage it can be inferred that .

A. Stephen Hawking was diagnosed with a rare form of motor neurone disease in 1942

B. Stephen Hawking had no more than one wife in his whole life

C. Stephen Hawking was left in a wheelchair by his illness more than half a century

D. Stephen Hawking gained popularity nowhere except in the academic world

5. Which of the following sentences is correct?

A. Stephen Hawking was a famous American scientist

B. Stephen Hawking was the first to set out the theory of relativity

C. Hawking Radiation implies space and time would have a beginning in the Big Bang and an end in black holes

D. Stephen Hawking was a sponsor of the Motor Neurone Disease Association for ten years

6. The last paragraph implies that Stephen Hawking was .

A. intelligent

B. hard-working

C. affectionate

D. considerate

7. What’s the purpose of the passage being written?

A. To let us know Stephen Hawking, the great British scientist, has passed away.

B. To tell us the disabled can achieve as many great things as the healthy.

C. To be in memory of Stephen Hawking and express people’s love to him.

D. To tell us what Stephen Hawking was famous for.

C

Winter solstice(冬至), an important solar term in the traditional Chinese calendar, as the name implies, means the coming of winter. It generally occurs between December 21st and 23rd. According to the traditional Chinese calendar, one year is divided into twenty-four solar terms. On this day, in the Northern Hemisphere the period of daytime is the shortest of the year and the period of night is the longest.

In Northern China there is a custom of eating dumplings during winter solstice. The tradition of eating dumplings during winter solstice has its origin in early times. It is said that dumplings were invented by Zhang Zhongjing, a well-known doctor from the Eastern-Han Dynasty.

One winter, he noticed that many people’s ears were frozen, which made him sad. In order to pr event and cure the freezing injury caused by the cold, he asked his followers to boil mutton, chilies and other ingredients with medicinal properties in a pot for fending off cold. After these were boiled, they ladled(舀取) the mutton and

other ingredients out of the pot, cut them into pieces, and then wrapped them with dough skins in the shape of ears. Afterward, they put these into pots to boil again.

On the day of the winter solstice, the people whose ears were frozen were sent to eat the dumplings. People who ate it felt warm from head to toe and had their cold injury healed. Thereafter, every winter solstice people ate dumplings. Then there became a saying that if you eat dumplings during the winter solstice, then you won’t freeze your ears off.

Afterwards, Zhang Zhongjing died on the day of winter solstice. In order to honor him, every year on the day of the winter solstice every household makes dumplings.

8. Which of the following should be the best title of the passage?

A. The Custom Of Eating Dumplings

B. The Inventor Of Dumplings

C. The Importance Of Eating Dumplings

D. The Origin Of Winter Solstice

9. According to the passage, people make dumplings to eat every winter solstice because .

A. they want to honor Zhang Zhongjing, who invented dumplings to cure peoples freezing injury

B. they want to celebrate the important solar term in the traditional Chinese calendar

C. dumplings boiled with mutton, chilies and other ingredients with medicinal properties taste delicious

D. they can feel warm from head to toe and have their freezing injury healed

10. What does the underlined phrase “fending off” in Paragraph 3 probably mean?

A. Put off.

B. Put out.

C. Keep up.

D. Keep out.

11. According to the passage, which is TRUE about the following description?

A. Winter solstice is the most important among twenty-four solar terms.

B. Australia in the Southern Hemisphere has the longest period of daytime on Winter Solstice.

C. If people don’t eat dumplings, they will have their ears frozen off.

D. China has the longest period of daytime on Winter Solstice.

D

Airbus is testing a big harpoon(鱼叉) to trap rogue (流氓) or unnecessary satellites and pull them out of the sky. The 1m-long projectile(自动推进武器) would be attached to a chase spacecraft through a strong chain. Once

the target was captured and under control, the chase vehicle would then drag its prey down into the atmosphere to burn to destruction.

Airbus has been working on the concept for a number of years now, developing ever bigger systems. It is a response to the growing problem of orbital junk—old pieces of hardware that continue to circle the globe and which now cause a collision threat to working satellites.

Something in the region of 20,000 items of 10cm or larger are currently being tracked. The latest Airbus harpoon is being designed with the capability to capture one of the biggest rogue items—Europe’s defunct Envisat (欧洲环境卫星),which is now a rubbish satellite. “This 8-tonne monster died suddenly in orbit in 2012”,explained advanced project engineer Alastair Wayman.

The testing at the aerospace company’s facility in Stevenage, UK, involves firing the harpoon, using compressed air(压缩空气), into a panel that is representative of the kinds of material used to build satellite structures. “The harpoon goes through these panels like a hot knife through butter,” said Mr Wayman.

A harpoon is relatively simple. You line up the target and shoot. Whereas, with the harpoon, all you have to do is to sit a distance away, wait for the target to spin underneath you, and at the right moment fire your harpoon.

12. Which of the following should be the best title of the passage?

A. Space Junk

B. Solution To Space Junk

C. Use Of Big Harpoon

D. Track Of Satellites

13. Airbus is testing a big harpoon to .

A. get materials to build satellite structures

B. capture and pull those useless and un-working satellites out of the sky

C. pull satellites out of sky to burn them to destruction

D. capture one of the biggest rogue items—Europe’s defunct Envisat

14. What does the underlined word “prey” in Paragraph 1 probably mean?

A. The captured target.

B. Big harpoons.

C. Working satellites.

D. A chase spacecraft.

15. From the passage we can know that .

A. none of the satellites in the sky is useful

B. Europe’s defunct Envisat has been pulled out of the sky to destruction

C. the harpoon can automatically fire at the right moment when the target spins

D. all satellites in the sky are not useful

第二节(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。

Steps for a Successful College Application

When it comes to getting into the college of your choice, your college application is the most important tool you have in your hands. 16, while a bad one can land you at the bottom. Keep the following tips in mind when you are going through the college application process and you’ll be on the road to admi ssion.

Be Prepared

17, carefully look over all the questions and requirements. Dedicate a page to each college with a checklist of everything you’ll need to submit, such as transcripts, recommendations, the essay, copies of awards/certificates, etc. 18

Former Records Technician, Carmen Huff, says the best thing students do is to get their applications early—or at

least by the deadline. Colleges and universities receive so many applications that they don’t have the time to accept late ones. The more time you give the college or university to process your application, the more time you’ll have to deal with any problems that might arise, Huff says.

Watch Your GPA and Test Scores

This is the first thing that most universities look at. For example, most four- y ear colleges don’t have a GPA requirement, but top Ivy Leagues(常春藤联盟) usually only accept students with a 3.5 or higher GPA. However, if your GPA is weak, don’t give up applying. 19

Write an Amazing Essay

A great essay can help tip the balance in your favor. 20. Many colleges require two essays, one short and one long. What you write not only shows how literate you are, but also provides the reader with an impression of your values and beliefs.

A. Be On Time,

B. Be Patient and Determined

C. When you have a test or an exam

D. When you first receive the application

E. A great application can zip you to the front of the line

F. So, take the time to think your essay through carefully

G. Instead, be sure to emphasize your other good qualities such as any awards or community involvement

第二部分语言知识运用(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。

Do you believe that the power of belief can create miracle(奇迹) in one’s life? Surely, it can and it once did in my life.

“You will never walk again and you’ll have to use a wheelchair.” The doctor’s words made me 21 and hopeless.

A 22 car accident had both of my legs broken. As a busy and active teacher, I couldn’t 23 becoming a disabled person.

Lying in bed, I 24 how I could give my ten-year-old son hope that Mom would 25. He needed the ray of hope that I would not be in a wheelchair forever.

Just maybe, I thought, I could use this experience to teach him what to do when a(n) 26 strikes. It didn’t take me long 27 I became impatient with my limited movement. To make things happen my way, I 28 to move on my own at night because I didn’t want the rest of my life in a 29 .

With the 30 that I could walk through my effort, every night in my private room, would 31 to move myself from the bed to the floor, holding on to the bed rail, and slowly putting my weight on my 32. After several weeks of these ever so 33 efforts, my strength and confidence continued to build. I knew one thing 34—there would come a day when the wheelchair would be gone and I would walk.

One night, before my son arrived for his regular visit, I pulled myself into the chair and 35 the walker in front of me. When I heard him greet the nurses, I 36 myself up. As he opened the door, I took a few small steps. 37, he could only watch as I turned and started back to bed. All of the pain, the fear, and the struggle 38 as I heard the words, “Mommy, you can walk!”

I am now able to walk 39, sometimes using a stick. And I am able to take public transportation to shop visit friends. My life has been blessed with many achievements of which I am proud. But none has ever brought me the satisfaction and joy offered by those four little words spoken by my 40.

21. A. numbed B. exhausted C. satisfied D. trilled

22. A. slight B. miserable C. heavy D. light

23. A. consider B. avoid C. imagine D. forgive

24. A. believed B. doubted C. knew D. wondered

25. A. disappear B. live C. die D. recover

26. A. earthquake B. chance C. disaster D. adventure

27. A. when B. before C. after D. until

28. A. attempted B. expected C. pretended D. refused

29. A. wheelchair B. car C. plane D. sofa

30. A. dream B. belief C. courage D. fact

31. A. like B. hesitate C. struggle D. determine

32. A. shoulders B. hands C. head D. feet

33. A. enjoyable B. comfortable C. easy D. difficult

34. A. for free B. for good C. for certain D. for ever

35. A. lied B. laid C. lay D. threw

36. A. dragged B. took C. dressed D. picked

37. A. Shocked B. Disappointed C. Ashamed D. Frightened

38. A. failed B. faded C. succeeded D. appeared

39. A. lightly B. hurriedly C. alone D. freely

40. A. student B. doctor C. roommate D. son

第二节(共10小题; 每小题1. 5分,满分15 分)

阅读下面材料,在空白处填入适当的内容(1个单词) 或括号内单词的正确形式。

Time flying, it is only several days away from the entrance examination to college in 2018. How I regret that much time 41(spend) in playing computer games before. It is at this moment 42 I really realize how important it is to do everything I can 43 (make) up for what I haven’t learned.

In the past, I would take 44 for granted that I could be admitted to a good university without hard work. But after several times of 45(fail) I came to understand the saying —“no pains, no gains.”

At present, I have no choice but to study harder than ever before. Although 46(face) with a great pressure, 1amstill 47 (confidence), firmly believing that I can achieve my goal so long as I adjust my mind, make good use 48 every minute and give full play to my potential. 49 (Late), with the help of my teachers and students, I have made great progress.

I am proud of being a student of Qujing No.1 Middle School. I like my school because it can set up a platform for us students to realize our dreams. I like my teachers because they can build a bridge for us students to success.

May our school 50(get) better and better in the future!

云南省昆明市第一中学2018届高三第五次月考语文试题Word版含答案

昆明第一中学2018届高中新课标高三第五次二轮复习检测 语文试卷 命题人:张静张书益樊华汪越华谢晶晶李黎吴春晓杨仕云 审题人:昆一中高三年级语文命题组 本试题卷分第Ⅰ卷(阅读题)和第Ⅱ卷(表达题)两部分,共8页。考生作答时,将答案答在答题卡上(答题注意事项见答题卡),在本试卷上答题无效,试卷满分150分,考试时间150分钟。 注意事项: 1.答题前,考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上填写清楚,并请认真填涂准考证号。 2.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。如需改动,用橡皮擦擦干净后,再选涂其他答案标号。答在试卷上的答案无效。 一、现代文阅读(35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。 城市指在一定地域范围内财富、资源、建筑、服务、信息等人类文明要素的载体,是人类社会与特定地理环境紧密结合的一种实体。研究城市是非常必要的,也是有现实意义的。马克思说,城市使“生产者也改变着,炼出新的品质,通过生产而发展和改造着自身,造成新的力量和新的观念,造成新的交往方式、新的需要和新的语言”。这是对城市功能的高度概括,也是我们进行城市研究所遵循的一个基本原则。城市研究是一门新兴的前沿学科,主要研究城市的起源、发展、嬗变、互动以及这一进程中出现的各类问题。。 当前我国正经历着大规模的城市化,到2020年城市人口将达到中国总人口的60%,城市化是大势所趋。城市化水平迅速提升的同时也导致城市问题丛生。城市研究显得更为重要。一方面如何借鉴域外经验看待城市化进程中的中国城市问题,另一方面如何保护我国传统城市的历史文脉,都需要借鉴前人的研究经验。城市史是城市砑究的重要组成部分,对其进行系统梳理尤其是对西方城市史开展深入研究,将有助于我国的城市发展,同时也将为我国学术界形成本土的城市史研究体系打下基础。 城市史是自城市这一聚居形态诞生以来的历史,它是以城市为中心的广泛的社会历史进程,也是系统和网络的复杂过程。城市史研究须遵循“一线多元”的框架:“一线”即以城市发展模式为主线,通过纵向的时间顺序,探讨城市发展不同阶段的基本特征和影响;“多元”即不同时期城市社会结构的复杂面,如权力关系、生产模式、文化形态、宗教信仰和社会生活等。 城市史研究需要将宏观与微观结合。宏观层面的城市史研究迫切需要研究视角的转换和理论体系的创新。我们所熟悉的城市史在时间上多集中于工业革命后,是以城市与乡村二元

西南名校联盟高考适应月考理综-答案

卷六 理科综合参考答案 一、选择题:本题共13小题,每小题6分。 题号 1 2 3 4 5 6 7 8 9 10 11 12 13 答案 C D A C B D D B D D D D B 二、选择题:本题共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,全部选对的给6分,选对但不全的给3分,有选错的给0分。 题号14 15 16 17 18 19 20 21 答案 D C A A D CD AC AC 【解析】 1.必需氨基酸是人体不能合成的,必须从外界摄取的,人体内能合成的氨基酸属于非必需氨基酸,故A正确。人体细胞可以进行有氧呼吸,也可以进行无氧呼吸,有氧呼吸的产物是CO2和水,产生CO2的场所是线粒体,人体细胞进行无氧呼吸产物为乳酸,不产生CO2,故B正确。在细胞核中既有DNA,也有RNA,DNA是双链的,所含有的嘧啶总数等于嘌呤总数,而RNA是单链的,所含有嘌呤数不一定等于嘧啶数,故C错误。原核细胞只有一种细胞器即核糖体,可以通过脱水缩合合成蛋白质生成水,故D正确。 2.绿叶在光照下时间长,光照部位产生的淀粉有可能会运输到遮光部位,实验现象反而会不明显,故A错误。时间长,质壁分离不一定越明显,质壁分离发生到一定程度不再分离,且质壁分离时间过长,细胞由于失水时间过长可能会死亡,第三次观察时细胞可能不会发生质壁分离复原现象,故B错误。赫尔希与蔡斯所做的噬菌体侵染细菌的实验中,用32P标记的噬菌体侵染未标记的细菌保温时间要合适,保温时间过长,有部分子代噬菌体会从大肠杆菌中释放出来;时间过短,亲代噬菌体的核酸不能完全注入到大肠杆菌内,故C错误。观察根尖分生组织细胞的有丝分裂实验,解离液解离根尖的时间不宜过短,否则细胞之间没有充分分离,压片时细胞不易相互分散开而相互重叠,故D正确。3.3H充分标记DNA的雄性动物细胞(染色体数为2N)置于不含3H的培养基中培养,经过连续两次细胞分裂,形成4个子细胞(不考虑突变);若是有丝分裂,DNA复制两次,细胞分裂两次,DNA复制是半保留复制,最终形成的染色体有的不含3H,若是减数分裂, 理科综合参考答案·第1页(共16页)

2020年云南省曲靖一中高考(理科)数学二模试卷 含解析

2020年高考(理科)数学二模试卷 一、选择题 1.已知集合A={x|y=lg(2﹣x)},集合B={x|≤2x≤4},则A∩B=()A.{x|x≥﹣2}B.{x|﹣2<x<2}C.{x|﹣2≤x<2}D.{x|x<2} 2.若复数(α∈R)是纯虚数,则复数2a+2i在复平面内对应的点在()A.第一象限B.第二象限C.第三象限D.第四象限 3.定义运算:,则函数f(x)=1?2x的图象是()A.B. C.D. 4.抛物线方程为y2=4x,一直线与抛物线交于A、B两点,其弦AB的中点坐标为(1,1),则直线的方程为() A.2x﹣y﹣1=0B.2x+y﹣1=0C.2x﹣y+1=0D.﹣2x﹣y﹣1=0 5.在明代程大位所著的《算法统宗》中有这样一首歌谣,“放牧人粗心大意,三畜偷偷吃苗青,苗主扣住牛马羊,要求赔偿五斗粮,三畜户主愿赔偿,牛马羊吃得异样.马吃了牛的一半,羊吃了马的一半.”请问各畜赔多少?它的大意是放牧人放牧时粗心大意,牛、马、羊偷吃青苗,青苗主人扣住牛、马、羊向其主人要求赔偿五斗粮食(1斗=10升),三畜的主人同意赔偿,但牛、马、羊吃的青苗量各不相同.马吃的青苗是牛的一半,羊吃的青苗是马的一半.问羊、马、牛的主人应该分别向青苗主人赔偿多少升粮食? () A.,,B.,, C.,,D.,,

6.若p是¬q的充分不必要条件,则¬p是q的() A.充分不必要条件B.必要不充分条件 C.充要条件D.既不充分也不必要条件 7.阅读程序框图,为使输出的数据为31,则①处应填的数字为() A.4B.5C.6D.7 8.已知x,y满足,则的取值范围为() A.[,4]B.(1,2] C.(﹣∞,0]∪[2,+∞)D.(﹣∞,1)∪[2,+∞) 9.已知点A(﹣3,0),B(0,3),若点P在曲线上运动,则△PAB面积的最小值为() A.6B.C.3D. 10.已知双曲线Γ:﹣=1(a>0,b>0)的右焦点为F,过原点的直线l与双曲线Γ的左、右两支分别交于A,B两点,延长BF交右支于C点,若AF⊥FB,|CF|=3|FB|,则双曲线Γ的离心率是() A.B.C.D. 11.已知的值域为[m,+∞),当正数a,b满足时,则7a+4b的最小值为() A.B.5C.D.9

2018届云南省曲靖一中西南名校联盟高三适应性月考卷(八)理科综合试题word含答案

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2020届西南名校联盟高考适应性月考(一) 生物试卷 注意事项: 1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。 2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其它答案标号。回答非选择题时,将答案写在答题卡上,写在本试卷上无效。 3.考试结束后,将本试卷和答题卡一并交回。 一、选择题:本题共13个小题,每小题6分,共78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.下列有关细胞结构与功能的叙述,不正确 ...的是 A.真核细胞的各种生物膜中都含有丰富的磷脂 B.某些细胞器衰老后可被溶酶体吞噬、消化 C.真核细胞的RNA主要在细胞核中合成 D.细胞内以囊泡的形式运输的物质都是大分子化合物 2.下列有关生物实验的叙述,正确的是 A.制作洋葱根尖细胞有丝分裂装片时,根尖解离后即用醋酸洋红液染色 B.检测酵母菌培养过程中是否产生二氧化碳,可判断其细胞呼吸方式 C.调查人群中某种遗传病的发病率时,应选择有遗传病的家系进行调查统计 D.验证DNA半保留复制时,可用含有3H标记的胸腺嘧啶脱氧核苷酸培养液培养细菌 3.人类囊性纤维病是由于第7号染色体上编码CFTR(一种跨膜蛋白)的基因缺失3个碱基,使CFTR的结构发生异常,从而导致其转运氯离子的功能异常。CFTR的作用机理是ATP与CFTR上的两个结合位点相互作用,从而引起CFTR构象发生变化,进而使通道孔打开和闭合。下列叙述不正确的是() A.在正常细胞中,CFTR运输Cl-最可能的方式是主动运输 B.氯离子跨膜运输的正常进行是由膜上通道蛋白决定的 C.基因能通过控制蛋白质的结构来控制生物体的性状 D.基因碱基数目的改变一定会导致蛋白质结构的改变

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6.若p是¬q的充分不必要条件,则¬p是q的() A.充分不必要条件B.必要不充分条件 C.充要条件D.既不充分也不必要条件 7.阅读程序框图,为使输出的数据为31,则①处应填的数字为() A.4 B.5 C.6 D.7 8.已知x,y满足,则的取值范围为() A.[,4] B.(1,2] C.(﹣∞,0]∪[2,+∞)D.(﹣∞,1)∪[2,+∞) 9.已知点A(﹣3,0),B(0,3),若点P在曲线上运动,则△PAB面积的最小值为() A.6 B.C.3 D. 10.已知双曲线Γ:﹣=1(a>0,b>0)的右焦点为F,过原点的直线l与双曲线Γ的左、右两支分别交于A,B两点,延长BF交右支于C点,若AF⊥FB,|CF|=3|FB|,则双曲线Γ的离心率是() A.B.C.D. 11.已知的值域为[m,+∞),当正数a,b满足时,则7a+4b的最小值为() A.B.5 C.D.9

2019届西南名校联盟高考适应性月考卷(云南省师范大学附属中学)月考(二)理科数学答案

理科数学参考答案·第1页(共8页) 云南师大附中2019届高考适应性月考卷(二) 理科数学参考答案 一、选择题(本大题共12小题,每小题5分,共60分) 【解析】 1. (2i)(1i)(2)(2)i (1i)(1i)2 a a a +-++-=+-,故选B . 2.(3)(2)A B =-+∞=+∞, ,, ,故选D . 3. sin y x x =为偶函数,当0πx <<时,sin 0x >,故选A . 4.如图1,过点G 作GD AC ⊥,垂足为D ,当点P 位于线段AD 上时,0GP AP <;当点P 位于线段DC 上时, 0GP AP >,故当GP AP 取得最小值时,点P 在线段AD 上,||||||(3||)GP AP AP DP AP AP =-=--,当3||AP =时,取得最小值3 4 -,故选C . 5.一方面,由2||2||OF OH =,得211 ||||22 OH OF c = = ,故2||F H ==;另一方面,双曲线的渐近线方程为0bx ay ±=,故2||F H b = =b =,即222234c b c a ==-,故2214a c =,得2c e a ==,故选A . .设在这周能进行决赛为事件A ,恰好在周三、周四、周五进行决赛分别为事件3,4,5,则3 4 5A A A A =,又事件3A ,4A ,5A 两两互斥,则有345()()()()P A P A P A P A =++= 1111117 1112222228 ??????+-?+-?-?= ? ? ???????,故选D . 图1

理科数学参考答案·第2页(共8页) 9.如图2,将三棱柱补为长方体1111ABDC A B D C -,异面直线1AC 与 1A B 的所成角即为1AC D ∠,设11AA =,则由题意 知11 cos 5 AC D ∠= = ,故选A . ()1f x >,当0x =时,(0)1f =,即当0x ≥时,()10f x >≥;当0x <时,0x ->,则 ()0f x ->,由题意得()()()f x x f x f x -=-,则(0)1 ()0()() f f x f x f x = =>--,故②成立;对任意的12x x ∈,R ,不妨设12x x >,故存在正数z 使得12x x z =+,则1222 2 () () ()() ()()f x f x f x z f x f x f z -=+-=22()()(()1)f x f x f z -=-,因为当 0x >时,()1f x >,所以()10f z ->,因为对任意的x ∈R ,有()0f x >,所以2()0f x >,故 12()()0f x f x ->,即12()()f x f x >,所以()f x 是R 上的增函数,故③错误,故选C . 12.如图4,设内切圆的圆心为H ,连接2AH BH F H ,,,设内切圆的半 径为r ,则2212||||||||||AB AF BF AF AF ++=++12||||48BF BF a +==, 2221 (||2ABF ABH AHF BHF S S S S AB =++=+△△△△22||||)4AF BF r r +?=,即 2 4 ABF S r = △,当2ABF △的面积最大时,内切圆的半径r 最大,由题意知, 直线不会与x 轴重合,可设直线AB :1my x =+,11()A x y ,,22()B x y ,,由22114 3my x x y =+?? ?+=??, ,得 图2 图4 图3

西南名校联盟2019-2020学年高三下学期适应性月考(二)理综生物试题(word无答案)

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