高考仿真模拟卷

高考仿真模拟卷
高考仿真模拟卷

高考仿真模拟卷(三)

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. It receives thousands of visitors each time.

A

The American travel website company TripAdvisor publishes a list of the world's best beaches every year.Today,we are going to explore some of this year's top 10 beaches in the world.

1.Baia do Sancho,Brazil

It is named as this year's best beach in the world.Its water is calm and clear.Its sand is fine and soft.But getting to Baia do Sancho is not so easy.It is on Fernando de Noronha,a volcanic island more than 300 kilometers off Brazil's coast.Travelers must take a plane or boat from major cities in northern Brazil to get there.And no more than 420 visitors can be on the island at one time.

2.Grace Bay,Turks and Caicos

While Baia do Sancho is difficult to get to,TripAdvisor's second-ranked beach could not be much easier for tourists to reach.

This beach has impossibly clean and clear waters and pure white sand.Its calm waters make it extremely safe for swimming,snorkeling,or simply floating.Once on land,many visitors enjoy walking—barefoot—for several kilometers on the soft,warm sand.

3.Eagle Beach,Aruba

To get to the third-best beach,we head south to the Dutch Caribbean island of Aruba.Like Grace Bay,Eagle Beach has clear,calm waters and soft white sand.

It offers visitors a chance to try different water sports,including tubing and jet skiing.Eagle Beach may be best known,however,for its dramatic sunsets.On clear nights,the sky turns red,orange,and purple.

4.Playa Paraiso,Cuba

The fourth-best beach is Playa Paraiso,an island off Cuba's southern coast.It has a

fun,laid-back restaurant for those who wish to eat and drink.There is little else on the beach.And that is exactly what visitors like about it.People come here for the sugar-like sand and calm waters

filled with colorful wildlife.

1. Which of the following is true about Baia do Sancho?

B. It can only be visited by plane.

C. It is near the Brazil's coast.

D. It is hard to reach.

2. Where can visitors go if they want to enjoy the beauty of the sinking sun?

A. Baia do Sancho,Brazil.

B. Grace Bay,Turks and Caicos.

C. Eagle Beach,Aruba.

D. Playa Paraiso,Cuba.

3. What can visitors mainly do on Playa Paraiso,Cuba?

A. Go boating.

B. Have a relaxing dinner.

C. Admire colorful sand.

D. Try different water sports.

B

Celeste Ng,a new writer,has gained recognition for her first novel,Everything I Never Told You.

Ng's parents came from Hong Kong,China in the 1960s.Ng was born in America and grew up in Pittsburgh,Pennsylvania,and Shaker Heights,Ohio,in a family of scientists.Celeste went to Harvard University and earned an MFA from the University of Michigan,where she won the Hopwood Award.

Although her novel is not about race,the characters are Asian.The main character is Lydia,a teenage girl,who is the favorite of three children born to a white mother and a Chinese-American father.The story is about Lydia's disappearance,and the emotions the family goes through as the mystery unfolds.The whole family deals with sorrow,regret,and exposed secrets as they search for their lost daughter.

Though the characters in this story are Asian,Ng says she didn't really want to include Asian characters.She was afraid people would think the story was about real people in her life.Because she

grew up in America and doesn't speak Chinese,she was actually surprised that she included Asian characters in the book.

The book has taken off,especially on Amazon,where it won the Editor's Pick for No.1 Best Book of the Year in 2014.Ng is still getting used to the attention,saying she is still amazed when people tell her they have read her book.With so many readers,it's safe to say this is a book you should read.But if you're looking for a simple mystery,this book might not be for you.Most readers warn that you should not read this book unless you're prepared to cry.

4. The novel Everything I Never Told You ________.

A. focuses on a family with a missing child

B. discusses the ways to get rid of regret

C. exposes the secret of the American world

D. talks about the life of teenagers in America

5. Which of the following is TRUE according to Celeste Ng?

A. She wanted to help the Asian people.

B. She was surprised she wrote about Asian characters.

C. She was born in Hong Kong and grew up in America.

D. She wanted people to know the characters were real people in her life.

6. How do most readers probably find the book?

A. It's about race.

B. It's a sad story.

C. It's a simple mystery.

D. It has a surprising ending.

7. What is the text mainly about?

A. Celeste Ng and her family.

B. The awards Celeste Ng won.

C. Celeste Ng's learning experiences.

D. Celeste Ng and her best-known novel.

C

For many people,being on the job might just sound like a picnic compared to a day at home filled with housework,meals and childcare.Even for those with a happy family life,home can

sometimes feel more taxing than work.

In a new study,researchers at Penn State University found significantly and consistently lower levels of cortisol(皮质醇) released in response to stress,in a majority of subjects when they were at work compared to when they were at home.This was true for both men and women,and parents and people without children.

Both men and women showed less stress at work.But women were more likely to report feeling happier there.Men were more likely to feel happier at home.Experts say there are other reasons why work is less stressful than home for many.“Paid work is more valued in society,” says Sarah Damaske, the lead researcher on the study.“Household work is boring and not particularly rewarding.”

We get better at our job with time and the increased competence means less stress and more rewards,Yet none of us,no matter how long we've been doing it,ever truly feels like an expert at parenting or even at marriage.

The support and friendship of co-workers also offer stress relief.At home,meanwhile,stress spreads and accumulates quickly.“That's the reason why m ost housewives wish they were the bread earners,” Dr.Damaske says.

Much of the advice to families and couples includes the warning to leave work stress at the office and even to change our mindset from work to home,for example,a walk around the block.The recent findings,though,suggest our home life,not our attitude,might be due for some change.

8. Which of the following can replace the underlined word “taxing”?

A. stressful

B. cheerful

C. worthwhile

D. rewarding

9. What did the research in the second paragraph prove?

A. Men felt better at home.

B. Women felt they had less time.

C. Women were easier to feel happier.

D. Most people felt more stress at home.

10. What do most people think of work at the office?

A. It is competitive.

B. It improves ability.

C. It can't relieve stress.

D. It doesn't always pay off.

11. According to the recent findings,what should we change to solve the problem mentioned?

A. Our attitude.

B. Our mindset.

C. Our home life.

D. Our working style.

D

German artist HA Schult is an unusual artist who uses trash (废物)to make sculptures.“We are living in the time of garbage,” says Schult.“I created a thousand sculptures of garbage.They are a mirror of ourselves.” Here,Schult was talking about his 1,000 trash sculptures in the form of humans.He first exhibited them in 1996 in the western German state of North Rhine-Westphalia.

“They are social sculptures,” he explains.“They are not only sculptures for the eyes.They are sculptures to spread the idea that we live in a time of garbage.” So far,Schult's social sculptures have been on show in Paris,in Moscow's Red Square,on the Great Wall of China,and in the desert next to the Pyramids of Giza near Cairo.

HA Schult's work is unforgettable.Although his work has had a big influence on the art world,Schult remains modest about his creations:“Artists have to learn every time.We are not important.All that counts is the time in which we are living.”

Trash art has been around for years.But it seems that only the popular artists are regarded as true artists when working with trash.Why can't common people be considered artists when they use the same things and change them into some form of personal art?Maybe it's because we all have our own preset ideas of what art is and isn't,or whom artists are or should be.

You can be an artist like Schult if you try.Look at used metal cans.What might be done with them?Imagine them in any number of new uses,or imagine them simply as an art form.What about boxes or clothing? Boxes can usually serve as new storage containers and houses for pets.And clothing?Imagine taking old clothes and turning them into hats or hanging organizers.

12. What do we know about Schult's sculptures?

A. They served as garbage containers.

B. They reflected environmental issues.

C. They were first shown in Paris,France.

D. They were to raise economic awareness.

13. HA Schult's artistic works also get the message across that an artist must ________.

A. be socially responsible

B. be as modest as possible

C. make garbage recyclable

D. take diverse artistic forms

14. According to the last 2 paragraphs,the author probably agrees that ________.

A. it takes talent to be a trash artist

B. preset ideas are important to artists

C. trash art can't be seen as a real art form

D. average people can also make trash artists

15. Which of the following is the best title for the text?

A. Could You Be a Trash Artist?

B. What Are Social Sculptures?

C. Do You Know about Trash Art?

D. How Can We Deal with Used Cans?

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。

Good Money Habits

It's the right time for a financial plan. Most plans are made in extreme excitement — when you get a pay rise, or after reading a self-help book. ___16___ Here are some tips that will help you stay the course all year round.

●Take baby steps.

The other day a colleague said, “I have decided to wake up at 6:30 a.m., starting tomorrow.” But she usually woke up at 8:30. Two hours earlier is a difficult task. After a few days I asked her how she was progressing. Her disappointed smile said it all. ___17___ If she had considered pushing the clock by 5 minutes every 10 days, she'd reach her 6:30 a.m. goal in eight months. Get the idea? Now simply replace time with savings.

●Tell apart a plan from a habit.

We made plans with a conscious mind, and habits are formed so that eventually they are dealt with by our subconscious mind; and they stick. So don't be in a rush to invest (投资) your money. Go with a systematic investment plan (SIP) of a mutual fund or start a recurring deposit (RD). As human beings, we want to progress. ___18___

●Get your family's support.

___19___ If your daughter knows that she can only eat out one weekend a month because you are putting money away for a European trip in 2018, she will be much more cooperative and feel she is a part of the decision.

●___20___

Link your investment to a particular financial goal; your commitment to it will be stronger. A client decided to open a RD, but she seemed directionless about the investment. Once we suggested that she link it to her daughter's education fund, she immediately increased the amount she was investing. When you name your investment, the goal takes on a greater meaning.

A.Give you goal a meaning.

B.But soon the charm dies down, and so does the enthusiasm.

C.It's a good idea to involve your family in your financial plan.

D.Look at them as a promise to yourself, a promise that needs to be honored.

E.I suggested that she set her alarm for 5 minutes before her regular time.

F.If you know this well in advance, you are less likely to buy an expensive mobile phone on an urge.

G.Once a habit is formed, we want to move ahead and will most probably increase the investment amount withot any encouragement.

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。

I am a social worker.I wanted to tell everyone about my very dear friend who passed away a few months ago.

I met him many years ago while doing my internship(实习期)in the country prison.He was ___21___ a program he had designed to help prisoners with drug and alcohol problems.He was

always ___22___ new ways to bring hope and help to these men and their ___23___.

One of his favorite ___24___ was the Toy Drive.He would run every Christmas for the children of the prisoners.He did this for twenty years ___25___ his sudden death.As last Christmas ___26___,I decided that this tradition had to be ___27___,for the children as well as the

___28___ of my friend.

But the file where he kept the names of the people who had been helped by him over the years was ___29___.I had to start anew(重新) and with very little ___30___!I started making phone calls,explaining about the project and my ___31___.I prayed every night that the event would,___32___,be worthy of my friend.To my great ___33___,individuals,churches and businesses began to come on board and,___34___,I had enough toys to give to all the children of the prisoners with some left over for the local community ___35___!

When Christmas Eve finally arrived,I felt very happy,thinking I had done all I could do and reflecting on what a(n) ___36___ it had been for me.I was bagging up the remaining toys ___37___ if there was anyone left who might like them.Then my phone rang.

It was my daughter.She ___38___ to explain about a woman she knew in Kentucky who had five children,one seriously ill,no husband,no heating in the home,no toys!Oh!How could we not?

My daughter and I drove all night,from New York to Kentucky, and those children woke up in a nice warm house with plenty of ___39___!

My friend's ___40___ of kindness lived on that year,reaching all the way to Kentucky!

21. A. recording B. attending C. directing D. improving

22. A. putting up with B. coming up with C. keeping up with D. catching up with

23. A. group B. family C. company D. club

24. A. events B. sports C. hobbies D. games

25. A. after B. since C. because D. until

26. A. arrived B. followed C. approached D. finished

27. A. carried out B. lived on C. carried on D. lived out

28. A. benefit B. memory C. pleasure D. favor

29. A. active B. extra C. hiding D. missing

30. A. time B. pressure C. energy D. confidence

31. A. difficulties B. impression C. importance D. atmosphere

32. A. otherwise B. however C. somehow D. though

33. A. curiosity B. disappointment C. relief D. thought

34. A. eventually B. occasionally C. absolutely D. generally

35. A. in particular B. as well C. once more D. at first

36. A. honor B. pity C. burden D. discovery

37. A. predicting B. wondering C. evaluating D. realizing

38. A. drove B. came C. returned D. called

39. A. chocolates B. candies C. toys D. flowers

40. A. spirit B. position C. courage D. attention

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。

For Nigel Portman,a love of travelling began with what's called a “gap year”.In common with many other British teenagers,he chose ___41___(take)a year out before settling down to study for his degree.After doing various ___42___(job)to raise some money,he left home to gain some experience of life in different cultures,visiting America and Asia.The more adventurous the young person,the ___43___(great)the challenge they are likely to set ___44___(them)for the gap year,and for some,like Nigel,it can result in a thirst for adventure.

Now that his university course ___45___(come)to an end,Nigel is just about to leave on a three-year trip that will take him right around the world.What's more,he plans to make the whole journey ___46___(use)only means of transport which are powered by natural energy.In other words,he'll be relying ___47___(main)on bicycles and his own legs;and when there's an ocean to cross,he won't be taking a shortcut(捷径) ___48___ flying aboard—he'll be joining the crew of a sailing ship,instead.

As well as doing some mountain climbing along ___49___ way,Nigel hopes to pass on to the people he meets the environmental message ___50___ lies behind the whole idea.

第三部分写作(共两节,满分35分)

第一节短文改错(共10小题;每小题1分,满分10分)

51.假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下画一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;

2.只允许修改10处,多者(从第11处起)不计分。

My new friend Tom is good at English writing.One day,I asked him how he did such well in written English.He told me that he has a habit of keep a diary every day.“You can try them,too.I'm sure you will improve your written English quickly in this way,”he said.I thought Tom was right,but I decided to follow his advices.I started to write down something interested every day.Sometimes when I didn't know how to spell a word,I would look it up in a dictionary.When I didn’t know how to write a sentence correct,I would ask my teacher for the help.My written English has really improved a lot because that.

第二节书面表达(满分25分)

52.假定你是李华,你的美国笔友Peter邀请你下周去他们学校参加文化交流活动,并向外国朋友介绍中国的传统绘画。但你忙于准备国庆节演出,不得不谢绝。请根据下面要点用英语写一封信,内容包括:

1.谢绝邀请及理由;

2.推荐朋友李明参加,并说明原因。

注意:1.词数100左右;

2.可以适当增加细节,以使行文连贯。

Dear Peter,

_______________________________________________________________________________ _____________

_______________________________________________________________________________ _____________

_______________________________________________________________________________ _____________

_______________________________________________________________________________ _____________

_______________________________________________________________________________

_____________

_______________________________________________________________________________ _____________

_______________________________________________________________________________ _____________

_______________________________________________________________________________ _____________

_______________________________________________________

Yours,

Li Hua

2019高考仿真模拟卷(三)【学生试卷】

1 2019高考仿真模拟卷(三) Word 转Ppu QQ :3 一、选择题:本题共12小题,每小题5分,共60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.(2018·泸州模拟)设集合P ={(x ,y )|y =k },Q ={(x ,y )|y =2x },已知P ∩Q =?,那么k 的取值范围是( ) A .(-∞,0) B .(0,+∞) C .(-∞,0] D .(1,+∞) 2.(2018·华南师大附中一模)“(?p )∨q 为真命题”是“p ∧(?q )为假命题”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 3.(2018·华南师大附中一模)欧拉公式e ix =cosx +isinx (i 为虚数单位)是由瑞士著名数学家欧拉发现的,它将指数函数的定义域扩大到复数,建立了三角函数和指数函数的关系,在复变函数论里占有非常重要的地位,被誉为“数学中的天桥”,已知e ai 为纯虚数,则复数 sin2a +i 1+i 在复平面内对应的点位于( ) A .第一象限 B .第二象限 C .第三象限 D .第四象限 4.(2018·安徽淮南二模)如图,在正方体ABCD -A 1B 1C 1D 1中,P 为BD 1的中点,则△PAC 在该正方体各个面上的正投影可能是( ) A .①② B .②④ C .②③ D .①④ 5.(2018·雅安三模)已知????2x +1 x n 展开式的各个二项式系数的和为128,则????2x +1 x n 的展开式中x 2的系数为( ) A .448 B .560 C .7 D .35 6.执行如图所示的程序框图,则输出的结果为( ) A .1+ 2 2 B .1- 32 C .1-3-2 2 D .1+3-2 2 7.已知3sinα-cosα=4 3,则cos ????α+π3+sin ????α+5π6=( ) A .0 B .4 3 C .-43 D .23 8.(2018·江西南昌二模)已知抛物线y 2=4x 的焦点为F ,准线l 与x 轴的交点为K ,抛物线上一点P ,若|PF |=5,则△PFK 的面积为( ) A .4 B .5 C .8 D .10 9.如图,△GCD 为正三角形,AB 为△GCD 的中位线,AB =3AE ,BC =3BF ,O 为DC 的中点,则向量FE →,OF → 夹角的余弦值为( ) A .12 B .-12 C .- 22 D . 22 10.(2018·辽宁葫芦岛二模)王老师的班上有四个体育健将甲、乙、丙、丁,他们都特别擅长短跑,在某次运动会上,他们四人要组成一个4×100米接力队,王老师要安排他们四个人的出场顺序,以下是他们四人的对话: 甲:我不跑第一棒和第二棒;乙:我不跑第一棒和第四棒; 丙:我也不跑第一棒和第四棒;丁:如果乙不跑第二棒,我就不跑第一棒; 王老师听了他们四人的对话,安排了一种合理的出场顺序,满足了他们的所有要求,据此我们可以断定,在王老师安排的出场顺序中,跑第三棒的人是( ) A .甲 B .乙 C .丙 D .丁 11.已知点P 为双曲线x 2a 2-y 2 b 2=1(a >b >0)右支上一点, 点F 1,F 2分别为双曲线的左、右焦点,点I 是△PF 1F 2的内心(三角形内切圆的圆心),若恒有S △IPF 1-S △IPF 2≥1 3S △IF 1F 2成立,则双曲线离心率的取值范围 是( ) A .(1,2] B .(1,2) C .(0,3] D .(1,3] 12.已知函数f (x )=2ax 3-3ax 2+1,g (x )=-a 4x +3 2, 若对任意给定的m ∈[0,2],关于x 的方程f (x )=g (m )在区间[0,2]上总存在唯一的一个解,则实数a 的取值范围是( ) A .(-∞,1] B .????18,1 C .(0,1)∪{-1}

山东省2014年高考仿真模拟冲刺卷(一)理综试题

绝密★启用前试卷类型:A 山东省2014年高考仿真模拟冲刺卷(一) 理科综合 本试卷分第I卷和第II卷两部分,共12页。满分300分。考试用时150分钟。 第Ⅰ卷(必做,共107分) 以下数据可供答题时参考 相对原子质量:N 14 O 16 S 32 Fe 56 一、选择题(本小题包括13小题,每题5分,每小题只有一个选项符合题意) 1.下列有关生物体物质和结构基础的叙述错误的是 () A.真核细胞DNA的复制和转录主要在细胞核中完成 B.细胞膜的成分有蛋白质、脂质和少量的糖类 C.抗体是蛋白质,RNA聚合酶也是蛋白质 D.细胞核只具有储存和复制遗传物质的功能 2.下列关于实验的叙述正确的是 () A.低倍镜观察的视野右上角有一不清晰物象时,应换用高倍物镜并调节细准焦螺旋 B.观察细胞有丝分裂时,剪取洋葱根尖2~3mm的原因是其内可找到分生区细胞 C.用斐林试剂检验某组织样液,若出现砖红色沉淀则说明其中一定含有葡萄糖 D.选取经低温诱导的洋葱根尖制作临时装片,可在显微镜下观察到联会现象 3.右图是描述某种生命活动的模型,下列叙述正确的是 () A.若A代表兔同化的能量,a代表兔摄入的食物,则b、c可分别代表被下 一营养级摄入和排便的能量流动途径 B.若A代表叶绿体基质,a代表光,则b、c可分别代表该场所产生的[H] 和ATP C.若A为调节中枢,a为渗透压升高,则b、c可分别代表抗利尿激素减少 和产生渴觉 D.若A代表人体B细胞,a为抗原刺激,则b、c可分别代表浆细胞和记忆细胞的形成4.对下列四幅图所对应的生物活动叙述错误的是() A.(1)图中虚线能正确表示适当升高温度,而其他条件不变时,生成物量变化的曲线B.(2)图中若要抑制肿瘤细胞增殖,则药物作用的时期最可能是在S期 C.(3)图表示次级精母细胞时,则该生物体细胞中染色体数最多为4个 D.(4)图中①④的基本单位不相同,③约有20种 5.果蝇有一种缺刻翅的变异类型,这种变异是由染色体上某个基因缺失引起的,并且有纯合致

2015高考数学全国卷1(完美版)

2015高考数学全国卷1(完美版)

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六大注意 1 考生需自己粘贴答题卡的条形码 考生需在监考老师的指导下,自己贴本人的试卷条形码。粘贴前,注意核对一下条形码上的姓名、考生号、考场号和座位号是否有误,如果有误,立即举手报告。如果无误,请将条形码粘贴在答题卡的对应位置。万一粘贴不理想,也不要撕下来重贴。只要条形码信息无误,正确填写了本人的考生号、考场号及座位号,评卷分数不受影响。 2 拿到试卷后先检查有无缺张、漏印等 拿到试卷后先检查试卷有无缺张、漏印、破损或字迹不清等情况,尽管这种可能性非常小。如果有,及时举手报告;如无异常情况,请用签字笔在试卷的相应位置写上姓名、考生号、考场号、座位号。写好后,放下笔,等开考信号发出后再答题,如提前抢答,将按违纪处理。 3 注意保持答题卡的平整 填涂答题卡时,要注意保持答题卡的平整,不要折叠、弄脏或撕破,以免影响机器评阅。 若在考试时无意中污损答题卡确需换卡的,及时报告监考老师用备用卡解决,但耽误时间由本人负责。不管是哪种情况需启用新答题卡,新答题卡都不再粘贴条形码,但要在新答题卡上填涂姓名、考生号、考场号和座位号。 4 不能提前交卷离场 按照规定,在考试结束前,不允许考生交卷离场。如考生确因患病等原因无法坚持到考试结束,由监考老师报告主考,由主考根据情况按有关规定处理。

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故选D. 7.D 由题意可得ω=2, 因为x ∈[0,π2 ], 所以ωx-π6=2x-π6∈[-π6 ,5π6], 由三角函数图象知: f(x)的最小值为3sin(-π6)=-32 , 最大值为3sin=3, 所以f(x)的取值范围是[-32,3], 故选D. 8.B 当n 输入值为6时,用2×6+1=13替换n,13不大于100,用0+1=1替换k,再用2×13+1=27替换n,27不大于100,此时用1+1=2替换k,再用27×2+1=55替换n,此时55不大于100,用2+1=3替换k,再用2×55+1=111替换n,此时111大于100,输出k 的值为3. 故选B. 9.B 作出不等式组对应的平面区域如图:(阴影部分△ABC). 由z=2x-y 得y=2x-z, 平移直线y=2x-z, 由图象可知当直线y=2x-z 经过点C 时,直线y=2x-z 的纵截距最小, 此时z 最大, 由{x +y -7=0,x -3y +1=0,

解得{x =5, y =2, 即C(5,2),代入目标函数z=2x-y, 得z=2×5-2=8.故选B. 10.A 还原几何体如图所示. 由三视图知,该几何体是由底面半径为2,高为5的半个圆柱和棱长分别为4,4,5的长方体组成的组合体,其表面积为S=π×2×5+π×22+2×16+2×20+20=92+ 14π. 故选A. 11.C 由题意,函数f(x)的定义域为(0,+∞); 由函数零点的定义,f(x)在(0,+∞)内的零点即是方程|x-2|-lnx=0, 即|x-2|=lnx 的根. 令y 1=|x-2|,y 2=lnx(x>0),在同一个坐标系中画出两个函数的图象: 由图得,两个函数图象有两个交点, 故方程有两个根,即对应函数有两个零点,故选C. 12.A 因为函数f(x)=log 2(2x +t)为“倍缩函数”,满足存在[a,b]?D,使f(x)在 [a,b]上的值域是[a ,b ], f(x)在[a,b]上是增函数; 所以{log 2(2a +t)=a 2,log 2(2b +t)=b 2.

2018高考全国卷仿真模拟语文试题(含答案)讲解学习

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